CN116495282A

CN116495282A - Apparatus and method for feeding packaging sleeves

Info

Publication number: CN116495282A
Application number: CN202310768355.4A
Authority: CN
Inventors: 沙海天; 李月明
Original assignee: Kangmeibao Suzhou Co ltd
Current assignee: Kangmeibao Suzhou Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-07-28
Anticipated expiration: 2043-06-28
Also published as: CN116495282B

Abstract

The invention provides a supply device and a supply method for packaging sleeves. The supply apparatus includes: a receiving device for receiving a plurality of said packaging sleeves and a delivery device comprising an adsorption device and a deployment device, said deployment device comprising a primary deployment member and a secondary deployment member. The main deployment member engages at least one non-flush arrangement of the first and second end sheets to deploy the flat packaging sleeve when the packaging sleeve is moved to the first deployment position. The secondary deployment member engages at least one non-flush structure of the first and second end sheets when the packaging sleeve that is not deployed in the first deployed position is moved to the second deployed position. The feeding equipment ensures the stability of the unfolding and forming of the sleeve, and improves the production efficiency and the qualification rate.

Description

Apparatus and method for feeding packaging sleeves

Technical Field

Embodiments of the present disclosure provide a supply apparatus and a supply method of packaging sleeves.

Background

The packaging container may be formed by a packaging sleeve having two end openings before filling the filling into the packaging container. For example, one of the end openings is sealed and then filled with a filler through the other end opening, and after the filler is filled, the other opening is closed, thereby forming a packaging container with the filler.

The packaging sleeve may have two configurations, one being flat and the other being solid. Stacking a plurality of flat packaging sleeves together facilitates transportation of the packaging sleeves. Each flat packaging sleeve is unfolded to be three-dimensional, and subsequent filling can be facilitated.

Disclosure of Invention

The embodiment of the disclosure provides a supply device and a supply method for packaging sleeves, by adopting the supply device and the supply method provided by the embodiment of the disclosure, the packaging sleeves which are not unfolded by a main unfolding component can be unfolded again into a three-dimensional shape by an auxiliary unfolding component, the stability of sleeve unfolding and forming is ensured, and the production efficiency and the qualification rate are improved.

A first aspect of the present disclosure provides a supply apparatus of packaging sleeves comprising: a housing means for housing a plurality of said packaging sleeves folded into a flat shape and stacked on each other; wherein, the packaging sleeve includes: a seam and first and second ends opposite to each other in an extending direction of the seam, the first and second ends being provided with first and second end openings, respectively; the packaging sleeve further comprises: a first end sheet surrounding the first end opening and a second end sheet surrounding the second end opening, both the first end sheet and the second end sheet being provided with a non-flush structure; the non-flush structure includes a protrusion or a notch; a conveying apparatus comprising: a suction device and a deployment device, wherein the suction device is configured to sequentially suck a plurality of the packaging sleeves in the accommodating device, the suction device is pivoted to a rotation shaft and rotates around the rotation shaft so as to drive the packaging sleeves to move from an initial position in the accommodating device to a target position outside the accommodating device along a movement path taking the rotation shaft as a center; the deployment device includes: a main deployment member disposed at a first deployment position between the initial position and the target position and configured to: engaging at least one non-flush structure in the first expanded position with the first end sheet and the second end sheet to expand the flat packaging sleeve when the packaging sleeve is moved to the first expanded position; the deployment device further comprises: an auxiliary deployment member disposed at a second deployment position between the first deployment position and the target position, the second deployment position being disposed outside the containment device and spaced apart from the first deployment position; the auxiliary deployment member is configured to: engaging at least one non-flush structure in the first and second end sheets in the second deployed position such that when the packaging sleeve that was not deployed in the first deployed position is moved to the second deployed position, the undeployed packaging sleeve is re-deployed.

In at least some embodiments, the first end sheet includes a first non-flush structure comprising: a first tab located at an edge of the first end sheet; the second end sheet includes a second non-flush structure comprising: a second tab located at an edge of the second end sheet; the main deployment member comprises: a first main deployment hook configured to engage the first tab in the first deployed position and a second main deployment hook configured to engage the second tab in the first deployed position.

In at least some embodiments, the first end sheet includes a first non-flush structure including a first tab located at an edge of the first end sheet; the second end sheet includes a second non-flush structure comprising: a second tab located at an edge of the second end sheet; the auxiliary deployment member includes: a first auxiliary deployment hook configured to engage the first protrusion in the second deployment position and a second auxiliary deployment hook configured to engage the second protrusion in the second deployment position.

In at least some embodiments, a plurality of said packaging sleeves are stacked on one another in a longitudinal direction, said main deployment member comprising: the first main unfolding hook and the second main unfolding hook; the auxiliary deployment member includes: the first auxiliary unfolding hook and the second auxiliary unfolding hook; the housing device includes: a first side and a second side opposite to each other in a first lateral direction, the first end opening being disposed toward the first side, the second end opening being disposed toward the second side, the first lateral direction being parallel to a plane perpendicular to the longitudinal direction; the supply device of packaging sleeves further comprises: a frame comprising a first bracket extending in the longitudinal direction and located on a first side of the containment device; the first main unfolding hook and the first auxiliary unfolding hook are connected with the first bracket.

In at least some embodiments, the first main deployment hook comprises: the extension direction of the first main unfolding hook main body part is different from the extension direction of the first main unfolding hook protruding part; the first auxiliary unfolding hook comprises: a first auxiliary unfolding hook body part and a first auxiliary unfolding hook protruding part connected with the first auxiliary unfolding hook body part, wherein the extending direction of the first auxiliary unfolding hook body part and the extending direction of the first auxiliary unfolding hook protruding part are different from each other; the first main deployment hook body portion and the first auxiliary deployment hook body portion are both connected with the first bracket, and the first main deployment hook projection and the first auxiliary deployment hook projection are configured to be suspended so as to enter the first end opening and engage with the first projection of the first end sheet, respectively.

In at least some embodiments, the first auxiliary deployment hook tab is further from the receiving means in the longitudinal direction than the first main deployment hook tab, and the two are spaced apart a first longitudinal distance in the longitudinal direction.

In at least some embodiments, the frame further comprises: a second bracket extending in the longitudinal direction and located on a second side of the receiving means; the second main unfolding hook and the second auxiliary unfolding hook are connected with the second bracket.

In at least some embodiments, the second main deployment hook comprises: the extension direction of the second main unfolding hook main body part is different from the extension direction of the second main unfolding hook protruding part; the second auxiliary unfolding hook comprises: the auxiliary unfolding hook comprises a second auxiliary unfolding hook main body part and a second auxiliary unfolding hook connecting piece connected with the second auxiliary unfolding hook main body part, wherein the extending direction of the second auxiliary unfolding hook main body part is different from that of the second auxiliary unfolding hook connecting piece; the second main unfolding hook body portion and the second auxiliary unfolding hook body portion are connected with the second bracket, and the second main unfolding hook protruding portion and at least part of the second auxiliary unfolding hook connecting piece are suspended so as to enter the second end opening and be connected with the second protruding portion of the second end sheet respectively.

In at least some embodiments, the second auxiliary deployment hook tab is further from the receiving means than the second main deployment hook tab in the longitudinal direction and is spaced apart a second longitudinal distance in the longitudinal direction.

In at least some embodiments, the first auxiliary deployment hook projection of the first auxiliary deployment hook is disposed obliquely with respect to a plane perpendicular to the longitudinal direction; the second auxiliary unfolding hook connecting piece of the second auxiliary unfolding hook is obliquely arranged relative to a plane perpendicular to the longitudinal direction.

In at least some embodiments, the axis of rotation extends in the first lateral direction; the second main unfolding hook protruding part of the second main unfolding hook is provided with a first orthographic projection in a plane vertical to the longitudinal direction, and the second auxiliary unfolding hook connecting piece of the second auxiliary unfolding hook is provided with a second orthographic projection in a plane vertical to the longitudinal direction; in a second lateral direction, the second orthographic projection is closer to the rotation axis than the first orthographic projection, the second lateral direction being in the same plane as the first lateral direction and intersecting each other.

In at least some embodiments, the frame further comprises: the third bracket is connected with the second bracket and extends along a second transverse direction, and the second transverse direction and the first transverse direction are positioned in the same plane and mutually crossed; the third bracket includes: a first side and a second side opposite to each other in the longitudinal direction, the second side being further from the receiving means than the first side; the second main unfolding hook is positioned on the first side of the third support, and the second auxiliary unfolding hook is positioned on the second side of the third support.

In at least some embodiments, the main deployment member further comprises: a spacer positioned on a first side of the third bracket and between the second main deployment hook and the third bracket; the gasket includes: a first main surface and a second main surface opposite to each other in the longitudinal direction, wherein the first main surface is closer to the second main deployment hook than the second main surface in the longitudinal direction; a portion of the first major surface is disposed at an incline relative to the second major surface.

In at least some embodiments, the second main deployment hook is a spring leaf comprising, in its direction of extension, a first end and a second end opposite each other, the first end being connected to the second bracket, the second end being arranged to hang so as to enter the second end opening and engage with the second protrusion of the second end sheet.

In at least some embodiments, a centerline of an orthographic projection of the first auxiliary deployment hook in a plane perpendicular to the longitudinal direction and a centerline of an orthographic projection of the second auxiliary deployment hook tab of the second auxiliary deployment hook in a plane perpendicular to the longitudinal direction are not collinear.

In at least some embodiments, the first main deployment hook and the second main deployment hook have the same deployment hook structure, the deployment hook structure comprising: the elastic piece and the bulge abutting against the elastic piece are provided with a telescopic quantity in the length direction of the elastic piece so as to control the bulge to move towards the direction approaching to or away from the packaging sleeve.

In at least some embodiments, the supply apparatus of packaging sleeves further comprises: a base; the deployment device further comprises: a tab assembly disposed on the base, the tab assembly including a tab configured to contact a surface of the flat packaging sleeve to apply a force to the surface that deforms the packaging sleeve from the flat to a tubular shape.

In at least some embodiments, the packaging sleeve comprises: a cavity and a plurality of side surfaces surrounding the cavity, the plurality of side surfaces comprising: at least two side surfaces facing the chassis in the longitudinal direction and connected to each other; one of the at least two side surfaces is arranged to be adsorbed by the adsorption means, and the other of the at least two side surfaces is arranged to be in contact with and held against the bump.

In at least some embodiments, the packaging sleeve includes a first end opening and a second end opening opposite one another in a direction of extension thereof; in the extending direction of the side surface, the total length of the side surface is L1, the distance from the bump to one of the first end opening and the second end opening is L2, and L1 and L2 satisfy the following condition:

in at least some embodiments, the tab has an arcuate surface, the other of the at least two side surfaces being configured to contact and be held against the arcuate surface as the packaging sleeve is moved.

In at least some embodiments, the number of the protrusions is a plurality, and the plurality of protrusions are arranged at intervals in the extending direction of the packaging sleeve.

In at least some embodiments, the bump assembly further comprises: a bump support comprising at least one first through hole and at least one second through hole; the first connecting piece is connected with the bump supporting piece through the at least one first through hole by the bump; the bump is connected with the base through the at least one second through hole by the second connecting piece.

In at least some embodiments, the packaging sleeve is configured to: when the suction device is rotated, the packaging sleeve is moved from the first deployed position to the second deployed position along an arc-shaped movement path centered on the rotation axis.

In at least some embodiments, the packaging sleeve has an angle of rotation of greater than 0 ° and less than or equal to 40 ° during movement of the packaging sleeve from the first deployed position to the second deployed position.

A second aspect of the present disclosure provides a method of feeding packaging sleeves, comprising: adsorbing the flat packaging sleeve to drive the flat packaging sleeve to move from an initial position to a target position along a moving path; wherein, the packaging sleeve includes: a first end sheet comprising a first non-flush structure and a second end sheet comprising a second non-flush structure; moving the packaging sleeve to a first unfolding position, and respectively engaging the first non-flush structure and the second non-flush structure by using a first main unfolding hook and a second main unfolding hook so as to unfold the flat packaging sleeve; and moving the packaging sleeve which is not unfolded at the first unfolding position to a second unfolding position, and respectively engaging the first non-flush structure and the second non-flush structure by utilizing a first auxiliary unfolding hook and a second auxiliary unfolding hook so as to unfold the non-unfolded packaging sleeve again.

In at least some embodiments, the packaging sleeve moves along an arcuate path of movement from the first deployed position to the second deployed position.

In at least some embodiments, the packaging sleeve has an angle of rotation of greater than 0 ° and less than or equal to 40 ° when the packaging sleeve is moved from the first deployed position to the second deployed position.

In at least some embodiments, the above-described method of supplying further comprises: and applying a force to the flat packing sleeve between the initial position and the target position to deform the packing sleeve from the flat shape to a three-dimensional shape.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure, not to limit the present disclosure.

FIG. 1 is a top view of a flat packaging sleeve provided by an embodiment of the present disclosure;

FIG. 1A is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 2 is a cross-sectional view of a three-dimensional packaging sleeve provided by an embodiment of the present disclosure;

FIG. 3 is a schematic view of a supply apparatus for packaging sleeves provided in an embodiment of the present disclosure;

FIG. 3A is a schematic view of a partial structure of the supply apparatus of FIG. 3;

FIG. 4 is a top view of the supply apparatus of FIG. 3;

FIG. 5 is a schematic view of a partial structure of the supply apparatus of FIG. 3;

FIG. 6 is a schematic structural view of a packaging sleeve provided by an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a first main deployment hook and a first auxiliary deployment hook according to an embodiment of the disclosure;

fig. 8 is a schematic structural diagram of a second main deployment hook and a second auxiliary deployment hook according to an embodiment of the disclosure;

FIG. 9A is a force diagram of a packaging sleeve of the present disclosure in a distorted configuration;

FIG. 9B is a force diagram of a packaging sleeve of the present disclosure in bending deformation;

fig. 10 is a schematic structural diagram of a first auxiliary deployment hook according to an embodiment of the disclosure;

fig. 11 is a schematic structural diagram of a second auxiliary deployment hook according to an embodiment of the disclosure;

FIG. 12 is another top view of a feeder provided by an embodiment of the present disclosure;

FIG. 13 is a schematic view of the positional relationship of a primary deployment member and a secondary deployment member in the path of travel of a packaging sleeve provided by an embodiment of the present disclosure;

FIG. 14 is a schematic view of a second main deployment hook and spacer configuration provided in an embodiment of the present disclosure;

FIG. 14A is another schematic view of the second main deployment hook and spacer of FIG. 14;

FIG. 14B is a schematic view of the gasket of FIG. 14;

fig. 15 is a schematic structural diagram of an unfolding hook according to an embodiment of the disclosure;

FIG. 15A is a schematic cross-sectional view taken along line B-B of FIG. 15;

fig. 16 is a schematic structural view of a first main deployment hook and a second main deployment hook according to an embodiment of the disclosure;

FIG. 17 is a schematic diagram of the operation of the bump assembly provided by embodiments of the present disclosure;

FIG. 18 is another partial schematic view of a feeding set according to an embodiment of the present disclosure;

FIG. 19 is a schematic view of a bump according to an embodiment of the present disclosure;

FIG. 20 is a schematic view of a bump support provided in an embodiment of the present disclosure;

FIG. 21 is a schematic view of another bump support provided in an embodiment of the present disclosure;

fig. 22 is a flowchart of a method of feeding packaging sleeves provided by an embodiment of the present disclosure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

According to an embodiment of the present disclosure, there is provided a supply apparatus of packaging sleeves, comprising a receiving device and a conveying device. The housing means is for housing a plurality of packing sleeves which are folded into a flat shape and stacked on each other; wherein, the packaging sleeve includes: a seam and first and second ends opposite to each other in an extending direction of the seam, the first and second ends being provided with first and second end openings, respectively; the packaging sleeve further comprises: a first end sheet surrounding the first end opening and a second end sheet surrounding the second end opening, each of the first end sheet and the second end sheet being provided with a non-flush structure; the non-flush structure includes a protrusion or notch. The conveying device comprises: an adsorption device and a deployment device. The adsorption device is configured to sequentially adsorb a plurality of packaging sleeves in the accommodating device, and the adsorption device is pivoted to the rotating shaft and rotates around the rotating shaft so as to drive the packaging sleeves to move from an initial position in the accommodating device to a target position outside the accommodating device along a moving path taking the rotating shaft as a center. The deployment device includes a primary deployment member and a secondary deployment member. The main deployment member is disposed in a first deployment position between the initial position and the target position and is configured to: in the first deployed position, engages at least one non-flush formation in the first and second end sheets to deploy the flat packaging sleeve when the packaging sleeve is moved to the first deployed position. The auxiliary unfolding component is arranged at a second unfolding position between the first unfolding position and the target position, and the second unfolding position is arranged outside the containing device and is spaced from the first unfolding position; the auxiliary deployment member is configured to: and engaging at least one non-flush structure in the first end sheet and the second end sheet in the second deployed position such that the undeployed packaging sleeve is re-deployed when the undeployed packaging sleeve is moved to the second deployed position in the first deployed position.

In the known supply device of packaging sleeves, the spreading means comprise only one spreading member. After the packaging sleeve has been removed from the receiving device, the unfolding means can unfold the packaging sleeve from a flat shape into a three-dimensional packaging sleeve during transport of the packaging sleeve.

However, in actual production, there are often cases where the packaging sleeve cannot be unfolded, and at this time, it is necessary to shut down the supply apparatus and take out the undeployed packaging sleeve (defective product) before restarting operation. Assuming that a defective product appears every hour is tolerable or acceptable, then at every 5 minutes, even every 15 minutes, the appearance of a defective product is considered unacceptable because frequent bad parts lead to repeated shutdowns, resulting in a drop in yield and a significant reduction in production efficiency.

In the supply device provided by the embodiment of the disclosure, the auxiliary unfolding component is arranged, so that the supply device comprises the main unfolding component and the auxiliary unfolding component, and the packaging sleeve which is not unfolded by the main unfolding component can be unfolded again into a three-dimensional shape by the auxiliary unfolding component, thereby not only ensuring the stability of sleeve unfolding and forming, but also improving the production efficiency and the qualification rate.

In an embodiment of the present disclosure, the packaging sleeve is formed from packaging sheet material. For example, both ends of the packaging sheet are wrapped around and connected to each other to form a packaging sleeve. In some embodiments, the packaging sheet comprises a plurality of composite material layers comprising, in order from the outside to the inside along the thickness direction thereof: an outer polymer layer, a carrier layer, a barrier layer, and an inner polymer layer. In some embodiments, the outer polymer layer and the inner polymer layer each comprise a polymeric material such as polyethylene or polypropylene. The carrier layer comprises, for example, a paperboard or paper layer. The barrier layer includes, for example, at least one of a metal, a metal oxide, and a polymer.

In the embodiments of the present disclosure, a flat packing sleeve may be understood as a packing sleeve in a flat stacked state, and a three-dimensional packing sleeve may be understood as having a tubular structure.

Fig. 1 is a top view of a flat package sleeve provided by an embodiment of the present disclosure, and fig. 1A is a cross-sectional view taken along line A-A of fig. 1. Fig. 2 is a cross-sectional view of a three-dimensional packaging sleeve provided by an embodiment of the present disclosure.

For example, as shown in fig. 1, the packaging sleeve 9 includes a plurality of side surfaces S90. In the direction of extension of the packaging sleeve 9 or of its side surface S90, the packaging sleeve 9 comprises a first end opening 91A and a second end opening 92A opposite to each other. Any two adjacent side surfaces S90 of the four side surfaces S90 enclose an inner angle, i.e. form a folded edge. For example, as shown in fig. 1A and 2, the packaging sleeve 9 includes a first interior angle 9a, a second interior angle 9b, a third interior angle 9c, and a fourth interior angle 9d.

In the flat stacked state shown in fig. 1A, the first internal angle 9a and its opposite third internal angle 9c are greater than 90 degrees and less than or equal to 180 degrees. The second internal angle 9b and its opposite fourth internal angle 9d are greater than or equal to 0 degrees and less than or equal to 45 degrees.

In the three-dimensional state shown in fig. 2, the first interior angle 9a, the second interior angle 9b, the third interior angle 9c, and the fourth interior angle 9d are substantially 90 degrees. "substantially" herein is approximately 90 degrees, such as 90 degrees + -10 degrees. That is, the cross-sectional shape of the packaging sleeve 9 is substantially rectangular or square.

In the embodiment of the present disclosure, taking the flat packing sleeve as shown in fig. 1A as an example, the process of being unfolded refers to: the first and third inner corners 9a and 9c move in a direction away from each other, and the second and fourth inner corners 9b and 9d move in a direction toward each other. In this way, the packaging sleeve 9 changes from the flat folded state to the three-dimensional state of fig. 2. When the packaging sleeve 9 is unfolded, it can be pushed onto a mandrel in the filling device by means of a pushing device, after which the operations of port activation, sealing, filling of the filler, etc. are performed.

It will be appreciated that the deployment from the flat packaging sleeve shown in fig. 1A to the three-dimensional packaging sleeve shown in fig. 2 is merely an illustrative deployment process. The expansion from the flat packing sleeve to the three-dimensional packing sleeve can be considered to be achieved as long as the height h2 of the expanded packing sleeve 9 in its thickness direction is greater than the height h1 of the flat packing sleeve 9 in its thickness direction.

The present disclosure is illustrated by the following specific examples. Detailed descriptions of known functions and known components may be omitted for the sake of clarity and conciseness in the following description of the embodiments of the present disclosure. When any element of an embodiment of the present disclosure appears in more than one drawing, the element may be referred to by the same reference numeral in each drawing.

Fig. 3 is a schematic structural view of a supply apparatus for packaging sleeves provided in an embodiment of the present disclosure. Fig. 3A is a partial schematic structure of the supply apparatus of fig. 3. Fig. 4 is a top view of the supply apparatus of fig. 3.

For example, as shown in fig. 3 and 3A, the supply apparatus 100 of the packaging sleeve 9 provided by the embodiment of the present disclosure includes a housing device 10 and a conveying device including an adsorbing device 20 and a developing device 30.

For example, the accommodating device 10 is used for accommodating a plurality of packaging sleeves 9, the plurality of packaging sleeves 9 being folded flat and stacked on each other in a longitudinal direction (for example, z-direction shown in the drawing) (only one packaging sleeve 9 is shown in fig. 3).

In the disclosed embodiment, the stacking direction of the packaging sleeve 9 is the z-direction, which may also be the horizontal direction, or a direction having an inclination angle (for example, the inclination angle is less than 90 degrees, still further, less than 60 degrees) with respect to the z-direction.

For example, as shown in fig. 4, the accommodating device 10 includes a plurality of guide rods for defining an accommodating space. A plurality of guide rods 101, 102, 103, 104, 105, 106 extend in the z-direction and surround the packaging sleeve 9 in a plane perpendicular to the z-direction (e.g. the xy-plane shown in the figures) to form a receiving space for receiving a plurality of packaging sleeves 9.

For example, as shown in fig. 3A, the adsorbing device 20 is used for sequentially adsorbing the packaging sleeves 9 in the accommodating device 10, and the adsorbing device 20 is pivoted to the rotation axis R and rotates around the rotation axis R to drive the packaging sleeves 9 to move along a movement path centered on the rotation axis R from an initial position in the accommodating device 10 to a target position outside the accommodating device 10. That is, the adsorbing device 20 sequentially removes the packaging sleeve 9 from the accommodating device 10.

For example, the suction device 20 includes a plurality of suction cups 201, the plurality of suction cups 201 being arranged in a direction parallel to the rotation axis R, and the plurality of suction cups 201 being rotated in a clockwise direction or a counterclockwise direction about the rotation axis R (for example, a rotation center of the cylinder) by a driving mechanism (for example, a cylinder). The plurality of sucking discs 201 are used for sucking the packaging sleeve 9 so as to drive the packaging sleeve 9 to move in the same direction.

Fig. 5 is a partial schematic structural view of the supply apparatus of fig. 3. For example, the packaging sleeve 9 in the receiving space moves downward as a whole by its own weight. First, under the drive of the drive mechanism, the suction cup 201 rotates in the counterclockwise direction about the rotation axis R to the position where the packaging sleeve 9 at the bottommost end of the accommodating space is located (i.e., the initial position of the packaging sleeve 9), and at this time, the suction cup 201 just contacts the packaging sleeve 9, and at this time, a reaction force is provided by the gravity of the packaging sleeve 9 so that the suction cup 201 attracts the packaging sleeve 9. When the suction cup 201 sucks the packaging sleeve 9, the suction cup 201 rotates in a clockwise direction about the rotation axis R, thereby driving the packaging sleeve 9 out of the receiving device 10 in a clockwise direction.

In some embodiments, the suction surface of the suction cup 201 does not have to lie in a horizontal plane when contacting the packaging sleeve 9. In order to better attach the suction surface of the suction cup 201 to the packaging sleeve 9, the packaging sleeve 9 in a flat state may not lie in a horizontal plane but have a certain inclination angle as shown in fig. 5.

For example, as shown in fig. 3A and 5, the deployment device 30 includes a main deployment member 1, the main deployment member 1 being disposed at a first deployment position P1 between an initial position and a target position P3. When the packaging sleeve 9 is moved to the first deployment position P1, the main deployment member 1 deploys the flat packaging sleeve 9.

For example, as shown in fig. 3A and 5, the deployment device 30 further includes an auxiliary deployment member 2, the auxiliary deployment member 2 being disposed at a second deployment position P2 between the first deployment position P1 and the target position P3. The second deployed position P2 is arranged outside the containment device 10 at a distance from the first deployed position P1. When the undeployed packaging sleeve 9 is moved to the second deployed position P2 in the first deployed position P1, the auxiliary deployment member 2 deploys the undeployed packaging sleeve 9 again.

In the supply apparatus 100 provided in the embodiment of the present disclosure described above, by providing the auxiliary deployment member 2, the supply apparatus 100 is made to include two deployment members of the main deployment member 1 and the auxiliary deployment member 2. In this way, compared with the case where the supply apparatus 100 is provided with only one main deployment member, in the process of the adsorption device 20 adsorbing the packaging sleeve 9 from the housing device 10, the packaging sleeve 9 which is not deployed by the main deployment member 1 can be deployed again by the auxiliary deployment member 2, thereby realizing the deformation of the packaging sleeve 9 from a flat shape to a three-dimensional shape, not only ensuring the stability of the sleeve deployment molding, but also improving the production efficiency and the yield.

In order to clearly understand the respective structures of the main deployment member 1 and the auxiliary deployment member 2 and the roles they play in the process of deploying the packing sleeve 9, the specific structures of the packing sleeve 9, the main deployment member 1 and the auxiliary deployment member 2 will be further described below.

Packaging sleeve

For example, as shown in fig. 1, the packaging sleeve 9 includes a seam 93 and first and second end portions opposed to each other in an extending direction of the seam 93, the first and second end portions being provided with first and second end openings 91A and 92A, respectively, the extending direction of the seam 93 being parallel to a plane (for example, xy-plane shown in the figure) perpendicular to the z-direction.

In the presently disclosed embodiments, a "seam" refers to a bonded area formed by bonding two ends of a packaging sheet to form a sleeve structure. It will be appreciated that the seam 93 may or may not be located at the hem of the packaging sleeve 9, as embodiments of the disclosure are not limited in this respect. The following description will take an example that the seam is located at the folded edge.

For example, the packaging sleeve 9 further comprises: the first end sheet 91 surrounding the first end opening 91A and the second end sheet 92 surrounding the second end opening 92A are each provided with a non-flush structure. The non-flush structure includes a protrusion or notch.

Fig. 6 is a schematic structural view of a packaging sleeve provided in an embodiment of the present disclosure.

For example, as shown in fig. 1 and 6, the first end sheet 91 includes a first non-flush structure 911, the first non-flush structure 911 including a first protrusion 911a located at an edge of the first end sheet 91. In some embodiments, the edges of the first end sheet 91 include a first edge 91e1 and a second edge 91e2, the second edge 91e2 being farther from the second end opening than the first edge 91e1 in the direction of extension of the packaging sleeve 9 (or seam 93). That is, the first projection 911a is provided at the second edge 91e2 of the first end sheet 91.

For example, the second end sheet 92 comprises a second non-flush structure 921, the second non-flush structure 921 comprising a second protrusion 921a located at an edge of the second end sheet 92. In some embodiments, the edges of the second end sheet 92 include a first edge 92e1 and a second edge 92e2, the second edge 92e2 being farther from the first end opening than the first edge 92e1 in the direction of extension of the packaging sleeve 9 (or seam 93). That is, the second protruding portion 921a is provided at the second edge 92e2 of the second end sheet 92.

For example, the first non-flush structure 911 may also include a first notch 911b, the first notch 911b being located on a side of the first protrusion 911a that is proximate to the seam 93. The second non-flush structure 921 may also include a second notch 921b, the second notch 921b being located on a side of the second protrusion 921a proximate to the seam 93.

Main unfolding component

In some embodiments, referring to fig. 1, 3-5, the main deployment member 1 is configured to engage with at least one non-flush structure of the first end sheet 91 and the second end sheet 92 in the first deployment position P1. For example, in the first deployed position P1, the main deployment member 1 is engaged with the first non-flush structure 911 of the first end sheet 91 and with the second non-flush structure 921 of the second end sheet 92.

In the embodiment of the present disclosure, by engaging the main deployment member 1 with at least one of the first end sheet 91 and the second end sheet 92 of the packaging sleeve 9, the at least one of the non-flush structures of the packaging sleeve 9 can be hooked by the main deployment member 1 in the first deployment position P1, thereby changing the state of the first end opening 91A and/or the second end opening 92A from the state shown in fig. 1A to the state shown in fig. 2, and thus achieving the deployment of the packaging sleeve 9 from the flat shape to the solid shape.

In some embodiments, the main deployment member 1 is engaged with at least one tab in the first end sheet 91 and the second end sheet 92 of the packaging sleeve 9.

Since the protruding portion is generally provided at the edge of the end sheet, in the present embodiment, by engaging the main deployment member 1 with at least one protruding portion of the first end sheet 91 and the second end sheet 92, the first end opening 91A and/or the second end opening 92A can be more easily hooked.

Fig. 7 is a schematic structural diagram of a first main deployment hook and a first auxiliary deployment hook according to an embodiment of the disclosure. Fig. 8 is a schematic structural diagram of a second main deployment hook and a second auxiliary deployment hook according to an embodiment of the disclosure.

For example, with reference to fig. 1, 3-8, the main deployment member 1 includes a first main deployment hook 11 and a second main deployment hook 12, the first main deployment hook 11 being configured to engage the first projection 911a in the first deployment position P1, and the second main deployment hook 12 being configured to engage the second projection 921a in the first deployment position P1.

For example, as shown in fig. 4, the containing device 10 includes a first side S1 and a second side S2 opposite to each other in the y-direction (i.e., a first transverse direction, which is parallel to the xy-plane), the first end opening 91A of the packaging sleeve 9 is disposed toward the first side S1, and the second end opening 92A is disposed toward the second side S2.

For example, as shown in fig. 4 to 8, the first main deployment hook 11 is located at the first side S1 and is disposed to face the direction of the first end opening 91A. The second main deployment hook 12 is located on the second side S2 and is disposed to face in the direction of the second end opening 92A. When the packaging sleeve 9 is moved from the initial position to the first deployed position P1, the first main deployment hook 11 may enter into the first end opening 91A and engage with the inner surface of the first projection 911A, thereby hooking the first end opening 91A; the second main deployment hook 12 may enter the second end opening 92A and engage with the inner surface of the second protrusion 921a, thereby hooking the second end opening 92A.

In the embodiment of the disclosure, the probability of the main unfolding component 1 unfolding the packaging sleeve 9 is further improved by arranging the first main unfolding hook 11 and the second main unfolding hook 12.

In some embodiments, the first primary deployment hook 11 is configured to engage the first notch 911b in the first deployment position P1 and the second primary deployment hook 12 is configured to engage the second notch 921b in the first deployment position P1. In this way, under the premise of ensuring the sleeve expansion, the first main expansion hook 11 and the second main expansion hook 12 can slide out of the sleeve from the first notch 911b and the second notch 921b respectively more easily, so that the damage to the sleeve is avoided.

In the related art, during the unfolding of the packing sleeve 9 from a flat shape to a three-dimensional shape, the packing sleeve 9 (hereinafter referred to as a carton) is found to have a problem of the carton cartridge to a varying extent.

Fig. 9A is a force diagram of a packaging sleeve of the present disclosure in a distorted configuration. Referring to fig. 4 and 9A, taking the second guide bar 102 and the fifth guide bar 105 as an example, when the suction cup 201 sucks one side of the paper box to pull down (i.e., pulling force F2), the left side of the paper box receives the pressing force F1 from the obliquely inner side of the supporting washer of the second guide bar 102, the right side of the paper box receives the pressing force F1 from the obliquely inner side of the boss at the bottom of the fifth guide bar 105, and at the same time, the sucked paper box receives the gravity G of a plurality of paper boxes stacked thereon, so that the seam 93 (or hem) of the paper box cannot be arched up, but is bent down, i.e., to the position where the seam 93' is located in the drawing.

In some cases, when the pressing force F1 on both sides is large, the main deployment member 1 may not be able to deploy the paper cassette from a flat shape to a three-dimensional shape, i.e., may not be able to hook the paper cassette. In other cases, when the spacing between the two side guides (i.e., the spacing between the first guide 101 and the fourth guide 104, the spacing between the second guide 102 and the fifth guide 105, and the spacing between the third guide 103 and the sixth guide 106) is inconsistent, the position of the carton in the containment device 10 is skewed (e.g., the seam 93 is skewed at an angle relative to the y-direction in FIG. 4). When the suction cup 201 pulls down the paper cassette, since the respective parts of the paper cassette itself cannot fall together at the same time, the paper cassette is distorted and thus stuck and cannot be normally unfolded.

Fig. 9B is a force diagram of a packaging sleeve of the present disclosure in bending deformation. Referring to fig. 1 and 9B, when the material of the paper cassette is soft and receives resistance applied by the main developing means 1 (i.e., the first main developing hooks 11 and the second main developing hooks 12), the first end sheet 91 and the second end sheet 92 of the paper cassette are simultaneously bent upward and the middle portion is protruded downward, and at this time, the paper cassette is also easily caught and cannot be developed.

In order to solve the problem that the package sleeve itself is deformed and cannot be unfolded by the main unfolding member 1, an auxiliary unfolding member is further provided in the feeding device according to the embodiment of the present disclosure.

Auxiliary unfolding component

In some embodiments, referring to fig. 1, 3-5, the auxiliary deployment member 2 is configured to engage with at least one non-flush structure of the first end sheet 91 and the second end sheet 92 in the second deployment position P2. For example, in the second deployed position P2, the auxiliary deployment member 2 is engaged with the first non-flush structure 911 of the first end sheet 91 and with the second non-flush structure 921 of the second end sheet 92.

In the embodiment of the disclosure, by providing the auxiliary unfolding component 2, the packaging sleeve 9 which is supposed to be unfolded at the first unfolding position P1 but is not successfully unfolded is unfolded at the second unfolding position P2, so that the problem that the packaging sleeve cannot be unfolded by the main unfolding component 1 due to deformation of the packaging sleeve is solved. Further, by engaging the auxiliary deployment member 2 with at least one of the uneven structure of the first end sheet 91 and the second end sheet 92, the at least one uneven structure of the packaging sleeve 9 can be hooked by the main deployment member 1 in the second deployment position P2, thereby changing the state of the first end opening 91A and/or the second end opening 92A from the state shown in fig. 1A to the state shown in fig. 2, and thus achieving deployment of the packaging sleeve 9 from a flat shape to a three-dimensional shape.

In some embodiments, the auxiliary unwinding member 2 is engaged with at least one protrusion in the first end sheet 91 and the second end sheet 92 of the packaging sleeve 9.

Since the protruding portion is generally provided at the edge of the end sheet, in the present embodiment, the first end opening 91A and/or the second end opening 92A can be more easily hooked by engaging the auxiliary unwinding member 2 with at least one protruding portion of the first end sheet 91 and the second end sheet 92.

For example, referring to fig. 1, 3-8, the auxiliary deployment member 2 includes a first auxiliary deployment hook 21 and a second auxiliary deployment hook 22, the first auxiliary deployment hook 21 being configured to engage the first projection 911a in the second deployment position P2, and the second auxiliary deployment hook 22 being configured to engage the second projection 921a in the second deployment position P2.

For example, as shown in fig. 4 to 8, the first auxiliary deployment hook 21 is located at the first side S1 and is disposed to face the direction of the first end opening 91A. The second auxiliary deployment hook 22 is located at the second side S2 and is disposed to face the direction of the second end opening 92A. When the packaging sleeve 9 is moved from the first deployed position P1 to the second deployed position P2, the first auxiliary deployment hook 21 may enter into the first end opening 91A and engage with the inner surface of the first projection 911A, thereby hooking the first end opening 91A; the second auxiliary deployment hook 22 may enter the second end opening 92A and engage with the inner surface of the second protrusion 921a, thereby hooking the second end opening 92A.

In the embodiment of the disclosure, by arranging the first auxiliary unfolding hooks 21 and the second auxiliary unfolding hooks 22, the probability of unfolding the packaging sleeve 9 by the auxiliary unfolding component 2 is further improved.

In some embodiments, the first auxiliary deployment hook 21 is configured to engage the first notch 911b in the second deployment position P2, and the second auxiliary deployment hook 22 is configured to engage the second notch 921b in the second deployment position P2. In this way, under the premise of ensuring the sleeve to be unfolded, the first auxiliary unfolding hook 21 and the second auxiliary unfolding hook 22 can slide out of the sleeve from the first notch 911b and the second notch 921b respectively more easily, so that the damage to the sleeve is avoided.

For example, as shown in fig. 3 to 5, 7 and 8, the supply apparatus 100 further includes a frame 40, and the frame 40 functions to support various components in the supply apparatus, such as the support accommodating means 10, the driving means, the adsorbing means 20, the deploying means 20, and the like. The frame 40 may comprise a plurality of brackets, including for example a first bracket 41, the first bracket 41 extending in the z-direction and being located on the first side S1 of the receiving device 10. The first main deployment hook 11 and the first auxiliary deployment hook 21 are both connected to the first bracket 41. The first holder 41 is, for example, a rod-like member.

In the case where the first main deployment hook 11 is connected to the first bracket 41, in the embodiment of the disclosure, by connecting the first auxiliary deployment hook 21 to the first bracket 41, on the one hand, improvement of the existing structure of the supply apparatus (especially, without changing the connection relationship and position of the first main deployment hook 11) can be reduced, and on the other hand, space occupied by the first auxiliary deployment hook 21 can be saved.

For example, as shown in fig. 7, the first main deployment hook 11 includes: the first main deployment hook body portion 11a and the first main deployment hook projection portion 11b connected to the first main deployment hook body portion 11a, the extending direction of the first main deployment hook body portion 11a and the extending direction of the first main deployment hook projection portion 11b being different. In some embodiments, an angle between the extending direction of the first main deployment hook main body portion 11a and the extending direction of the first main deployment hook protruding portion 11b is less than or equal to 90 degrees. As shown in fig. 7, for example: the extending direction of the first main extension hook main body portion 11a is the z direction, the extending direction of the first main extension hook protruding portion 11b is the y direction, and the included angle between the two is about 90 °.

In the embodiment of the disclosure, by setting the extending direction of the first main deployment hook protruding portion 11b to be different from the extending direction of the first main deployment hook main body portion 11A, the first main deployment hook protruding portion 11b is more facilitated to enter the first end opening 91A, so that the first main deployment hook 11 is facilitated to hook the first end opening 91A at the first deployment position P1.

In the embodiment of the present disclosure, the first main expansion hook main body portion 11a and the first main expansion hook protruding portion 11b may be of a separate structure or may be of an integral structure, and when they are of an integral structure, the manufacturing process may be simplified, so that it is preferable.

For example, the first auxiliary deployment hook 21 includes: the first auxiliary deployment hook main body portion 21a and the first auxiliary deployment hook projection portion 21b connected to the first auxiliary deployment hook main body portion 21a, the extending direction of the first auxiliary deployment hook main body portion 21a and the extending direction of the first auxiliary deployment hook projection portion 21b being different from each other. In some embodiments, an angle between the extending direction of the first auxiliary expansion hook main body portion 21a and the extending direction of the first auxiliary expansion hook protruding portion 21b is less than or equal to 90 degrees. As shown in fig. 7, for example, the extending direction of the first auxiliary extension hook main body portion 21a is the z direction, the extending direction of the first auxiliary extension hook protruding portion 21b is the z1 direction, and the included angle between the two is 45 ° to 90 °, for example, about 50 °.

In the embodiment of the disclosure, by making the extending direction of the first auxiliary expansion hook protruding portion 21b different from the extending direction of the first auxiliary expansion hook main body portion 21A, the first auxiliary expansion hook protruding portion 21b is more convenient to enter the first end opening 91A, so that the auxiliary expansion hook 21 is facilitated to hook the first end opening 91A at the second expansion position P2.

In the embodiment of the present disclosure, the first auxiliary extension hook main body portion 21a and the first auxiliary extension hook protruding portion 21b may be a separate structure or may be an integral structure, and when the structure is an integral structure, the manufacturing process may be simplified, so that it is preferable.

For example, the first main deployment hook main body portion 11A and the first auxiliary deployment hook main body portion 21A are each connected to the first bracket 41, and the first main deployment hook projection 11b and the first auxiliary deployment hook projection 21b are provided to be suspended so as to enter the first end opening 91A and engage with the first projection 911A of the first end sheet 91, respectively.

For example, as shown in fig. 4 and 8, the frame 40 further includes: and a second bracket 42, the second bracket 42 extending in the z-direction and being located at the second side S2 of the accommodating device 10. The second main deployment hook 12 and the second auxiliary deployment hook 22 are both connected to the second bracket 42. The second bracket 42 is, for example, a rod-like member.

In the case where the second main deployment hook 12 is connected to the second bracket 42, in the embodiment of the disclosure, by connecting the first auxiliary deployment hook 21 to the second bracket 42, on the one hand, improvement of the existing structure of the supply apparatus (especially, without changing the connection relationship and position of the second main deployment hook 12) can be reduced, and on the other hand, space occupied by the first auxiliary deployment hook 21 can be saved.

For example, as shown in fig. 8, the second main deployment hook 12 includes: the second main deployment hook main body portion 12a and the second main deployment hook projection portion 12b connected to the second main deployment hook main body portion 12a, the extending direction of the second main deployment hook main body portion 12a and the extending direction of the second main deployment hook projection portion 12b being different. In some embodiments, the angle between the extending direction of the second main deployment hook main body portion 12a and the extending direction of the second main deployment hook protruding portion 12b is less than or equal to 90 degrees. For example, referring to fig. 4 and 8, the extending direction of the second main deployment hook main body portion 12a is the x direction, the extending direction of the second main deployment hook protrusion portion 12b is the y direction, and the angle between the two extending directions is about 90 °.

In the embodiment of the disclosure, the second main deployment hook protrusion 12b is facilitated to enter the second end opening 92A by making the extension direction of the second main deployment hook protrusion 12b different from the extension direction of the second main deployment hook main body 12A, so that the second main deployment hook 12 is easier to hook the second end opening 92A at the first deployment position P1.

In the embodiment of the present disclosure, the second main extension hook main body portion 12a and the second main extension hook protruding portion 12b may be a separate structure or may be an integral structure, and when the structure is an integral structure, the manufacturing process may be simplified, so that it is preferable.

For example, the second auxiliary deployment hook 22 includes: the second auxiliary expansion hook main body portion 22a and the second auxiliary expansion hook connecting piece 22b connected with the second auxiliary expansion hook main body portion 22a, and the extending direction of the second auxiliary expansion hook main body portion 22a and the extending direction of the second auxiliary expansion hook connecting piece 22b are different. In some embodiments, the angle between the extending direction of the second auxiliary expansion hook main body portion 22a and the extending direction of the second auxiliary expansion hook connecting piece 22b is less than or equal to 90 degrees. For example, as shown in fig. 8, the extending direction of the second auxiliary deployment hook main body portion 22a is substantially perpendicular to the extending direction of the second auxiliary deployment hook attachment piece 22 b.

In the embodiment of the disclosure, the second auxiliary unfolding hook connecting piece 22b is beneficial to enter the second end opening 92A by making the extending direction of the second auxiliary unfolding hook connecting piece 22b different from the extending direction of the second auxiliary unfolding hook main body portion 22A, so that the second auxiliary unfolding hook 22 is easier to hook the second end opening 92A at the second unfolding position P2.

In the embodiment of the disclosure, the second auxiliary unfolding hook main body portion 22a and the second auxiliary unfolding hook connecting piece 22b may be in a split structure or an integral structure, and when the two structures are integrated, the manufacturing process may be simplified. In the case of the split structure, it is preferable to more easily adjust the projecting distance of the second auxiliary extension hook connecting piece 22b with respect to the second auxiliary extension hook main body portion 22 a.

For example, the second main deployment hook body portion 12A and the second auxiliary deployment hook body portion 22A are each connected to the second bracket 42, and the second main deployment hook projection 12b and at least a portion of the second auxiliary deployment hook tab 22b are configured to hang to enter the second end opening 92A and engage the second tab 921a of the second end sheet 92, respectively.

For example, as shown in fig. 7, the first auxiliary deployment hook protrusion 21b is farther from the container 10 than the first main deployment hook protrusion 11b in the z-direction, and the two are spaced apart by a first longitudinal distance d1 in the z-direction.

In the presently disclosed embodiment, by providing the first longitudinal distance d1, an intermittent time can be set aside for the packaging sleeve 9, thereby increasing the chance that the first end opening 91A is deployed a second time.

For example, as shown in fig. 8, the second auxiliary deployment hook tab 22b is farther from the containment device 10 than the second main deployment hook tab 12b in the z-direction and is spaced apart from the second main deployment hook tab by a second longitudinal distance d2 in the z-direction.

In the presently disclosed embodiment, by setting the first longitudinal distance d1, an intermittent time can be set aside for the packaging sleeve 9, thereby increasing the probability that the second end opening 92A is deployed a second time.

In the embodiment of the disclosure, the first longitudinal distance d1 and the second longitudinal distance d2 may be equal or unequal. The range of the values of the first longitudinal distance d1 and the second longitudinal distance d2 is more than zero and less than or equal to 65mm. In a specific setting, the first longitudinal distance d1 and the second longitudinal distance d2 are related to the size of the packaging sleeve, the height of the table, the position of the cylinder, etc. 65mm is the maximum value measured by the existing structure of the feeding device, and if either of the first longitudinal distance d1 and the second longitudinal distance d2 exceeds this value, the packaging sleeve will first hit the bottom table, resulting in the hook being deactivated. Likewise, if any of the above distances is too small, resulting in the packaging sleeve not being completely detached from the receiving means, deformation may occur and the packaging sleeve is not easily opened and is easily damaged. For example, the first longitudinal distance d1 and the second longitudinal distance d2 are preferably 25-65mm.

For example, as shown in fig. 13, the first auxiliary deployment hook protrusion 21b is closer to the rotation axis R than the first main deployment hook protrusion 11b in the x direction, and the two are spaced apart by a first lateral distance D1 in the x direction. Also, in the x-direction, the second auxiliary deployment hook tab 22b is closer to the rotational axis R than the second main deployment hook tab 12b, and is spaced apart from the second main deployment hook tab by a second lateral distance D2 in the x-direction.

Since the first end sheet and the second end sheet of the packaging sleeve 9 gradually approach the rotation axis R in the x-direction during rotation from the first deployment position P1 to the second deployment position P2. In the embodiment of the disclosure, by setting the first transverse distance D1 and the second transverse distance D2, the first main unfolding hook protrusion 11b and the first auxiliary unfolding hook protrusion 21b can respectively hook the same position of the first end sheet, and the second auxiliary unfolding hook connecting piece 22b and the second main unfolding hook protrusion 12b hook the same position of the second end sheet, so that the probability of unfolding the packaging sleeve by the auxiliary unfolding component is further improved.

In the embodiment of the disclosure, the first lateral distance D1 and the second lateral distance D2 may be equal or unequal. Considering that the first main deployment hook projection 11b and the first auxiliary deployment hook projection 21b are closer to the cylinder in the x direction, possibly interfering with the cylinder side plate, in the embodiment of the present disclosure, D1 is shortened, i.e., D1 is smaller than D2.

In the embodiment of the present disclosure, in the case where the first lateral distance D1 and the second lateral distance D2 are equal to the distance D, the distance D satisfies the following formula: d=l0 (1-Cos α), where L0 is the lateral distance of the second main deployment hook projection 12b from the cylinder rotation center (i.e., rotation axis R), and α is the rotation angle. For example, L0 typically ranges from 0 to 25mm, which is related to the width of the packaging sleeve, the height of the table, the cylinder position, etc. 25mm is the maximum transverse distance measured for the equipment mechanism, if the maximum transverse distance exceeds 25mm, the paper box edge can be hit to the bottom table top, and unhooking is not significant. Further, L0 is preferably 5-15mm, for example, and an excessively small carton is not completely removed from the carton magazine, and an excessively large carton rotates at a very fast speed, and is deformed so as not to be easily opened and is easily damaged.

Fig. 10 is a schematic structural diagram of a first auxiliary unfolding hook according to an embodiment of the disclosure. As shown in fig. 10, for example, the first auxiliary deployment hook 21 includes a first auxiliary deployment hook main body portion 21a, a first auxiliary deployment hook projection portion 21b, and a first auxiliary deployment hook connection portion 21c. The lower end of the first auxiliary expansion hook main body portion 21a is connected to the first auxiliary expansion hook protruding portion 21b, and the upper end of the first auxiliary expansion hook main body portion 21a is connected to the first auxiliary expansion hook connecting portion 21c. For example, the first auxiliary deployment hook connection portion 21c is provided with a through hole so as to be connected with the first bracket 41.

Fig. 11 is a schematic structural diagram of a second auxiliary unfolding hook according to an embodiment of the disclosure. As shown in fig. 11, for example, the second auxiliary deployment hook 22 includes a second auxiliary deployment hook main body portion 22a and a second auxiliary deployment hook connecting piece 22b connected to the second auxiliary deployment hook main body portion 22 a.

For example, the second auxiliary deployment hook tab 22B is disposed obliquely to the xy-plane, and in some embodiments, the second auxiliary deployment hook tab 22B is disposed at the same angle to the xy-plane as the packaging sleeve 9 is disposed at the second deployment position P2, such that the second auxiliary deployment hook tab 22 is more advantageously received into the second end opening 91B of the packaging sleeve 9 for engagement with the second end sheet 92 when the packaging sleeve 9 reaches the second deployment position P2.

For example, the first auxiliary deployment hook tab 21b is also disposed obliquely relative to the xy-plane, and in some embodiments, the first auxiliary deployment hook tab 21b is disposed at the same angle relative to the xy-plane as the packaging sleeve 9 is disposed at the second deployment position P2, such that the first auxiliary deployment hook tab 21b is more advantageously advanced into the first end opening 91A of the packaging sleeve 9 to engage the first end sheet 91 when the packaging sleeve 9 reaches the second deployment position P2.

For example, as shown in fig. 8 and 11, the frame 40 further includes: and a third bracket 43, wherein the third bracket 43 is connected to the second bracket 42 and extends along an x-direction (i.e., a second lateral direction), and the x-direction and the y-direction lie in the same xy-plane and intersect each other, e.g., the x-direction and the y-direction are perpendicular to each other. The third bracket 43 includes: a first side S11 and a second side S12 (e.g., upper and lower sides as shown in the drawing) opposite to each other in the z-direction, the second side S12 being farther from the housing device 10 than the first side S11. The second main deployment hook 12 is located at the first side S11 of the third bracket 43, and the second auxiliary deployment hook 22 is located at the second side S12 of the third bracket 43. The third bracket 43 is, for example, a connector.

In the embodiment of the disclosure, by arranging the third bracket 43 and arranging the second main expansion hook 12 and the second auxiliary expansion hook 22 on the upper and lower sides of the third bracket 43 respectively, on one hand, improvement of the existing structure of the supply device (especially, without changing the connection relationship and position of the second main expansion hook 12) can be reduced, and on the other hand, the space occupied by the second auxiliary expansion hook 22 can be saved.

For example, as shown in fig. 11, the second auxiliary deployment hook tab 22b engages with the second protruding portion 921a of the packaging sleeve 9. Further, the overlapping area of the second auxiliary expansion hook connecting piece 22b and the second protruding portion 921a is 2-5mm in width. If the width is too small, the second protruding portion is not easily caught, and if the width is too large, the protruding distance of the connecting piece 22b is too large, and the paper cassette is easily damaged.

For example, as shown in fig. 11, the second auxiliary expansion hook main body portion 22a is provided with a bent portion having an included angle β equal to the rotation angle α (as shown in fig. 10) of the packaging sleeve 9, that is, an included angle between the plane in which the first expansion position P1 is located and the plane in which the second expansion position P is located.

Fig. 12 is another top view of a feeding device provided by an embodiment of the present disclosure. Fig. 13 is a schematic view of the positional relationship of the main deployment member and the auxiliary deployment member in the movement path of the packaging sleeve provided in the embodiment of the present disclosure. For simplicity of illustration, the first main deployment hook projection 11b, the second main deployment hook projection 12b, the first auxiliary deployment hook projection 21b, and the second auxiliary deployment hook tab 22b are all shown in black dots in fig. 13.

For example, as shown in fig. 12 and 13, the center line O1 of the orthographic projection of the first auxiliary expansion hook projection 21b of the first auxiliary expansion hook 21 in the xy plane and the center line O2 of the orthographic projection of the second auxiliary expansion hook connecting piece 22b of the second auxiliary expansion hook 22 in the xy plane are not collinear. That is, the center line O1 and the center line O2 are not on the same straight line parallel to the y direction.

As shown in fig. 6, the first projection 911a and the second projection 921a of the packaging sleeve 9 are located on opposite sides of the seam 93, respectively. If the center line O1 and the center line O2 are collinear (e.g., on the same line parallel to the y-direction), it is difficult to cause the first auxiliary extension hook projection 21b of the first auxiliary extension hook 21 and the second auxiliary extension hook attachment piece 22b of the second auxiliary extension hook 22 to simultaneously hook the first projection 911a and the second projection 921a at the second extension position P2.

In the embodiment of the disclosure, by making the center line O1 of the orthographic projection of the first auxiliary expansion hook projection 21b of the first auxiliary expansion hook 21 in the xy plane and the center line O2 of the orthographic projection of the second auxiliary expansion hook connecting piece 22b of the second auxiliary expansion hook 22 in the xy plane not collinear, the first auxiliary expansion hook projection 21b and the second auxiliary expansion hook connecting piece 22b can be made to more easily catch the first protruding portion 911a and the second protruding portion 921a of the packaging sleeve 9 at the second expansion position P2 at the same time, thereby further improving the possibility that the packaging sleeve 9 is expanded at the second expansion position P2.

Similarly, as shown in FIGS. 12 and 13, if the center line of the orthographic projection of the first main deployment hook projection 11b of the first main deployment hook 11 in the xy plane (not shown; because the orthographic projection of the first main deployment hook projection 11b and the orthographic projection of the first auxiliary deployment hook projection 21b overlap, the center line of the first main deployment hook projection 11b references the center line O1) and the center line O3 of the orthographic projection of the second main deployment hook projection 12b of the first main deployment hook 12 in the xy plane are collinear, it is difficult to have the first main deployment hook projection 11b and the second main deployment hook projection 12b hook the first projection 911a and the second projection 921a simultaneously in the first deployment position P1.

In the embodiment of the present disclosure, by making the center line of the orthographic projection of the first main deployment hook projection 11b in the xy plane and the center line O3 of the orthographic projection of the second main deployment hook projection 12b in the xy plane non-collinear (i.e., the center line O1 and the center line O3 are not on the same straight line parallel to the y direction), it is possible to make them easier to simultaneously hook the first projection 911a and the second projection 921a in the first deployment position P1, thereby further improving the probability that the packaging sleeve 9 is deployed in the first deployment position P1.

For example, as shown in fig. 13, the packaging sleeve 9 is moved along the arc-shaped movement path MP from the first deployed position P1 to the second deployed position P2. When the packaging sleeve 9 is moved from the first deployed position P1 to the second deployed position P2, the rotation angle α of the packaging sleeve 9 is greater than 0 ° and equal to or less than 40 °. Preferably, the rotation angle α is 15 ° to 25 °, if the angle is too small, the packaging sleeve 9 is not completely detached from the receiving means, if the angle is too large, the packaging sleeve 9 rotates rapidly, is deformed and is not easy to open, and the packaging sleeve 9 is easily damaged.

For example, the rotation axis R extends in the y direction. As shown in fig. 12, the second main deployment hook projection 12b has a first orthographic projection in the xy plane, and the second auxiliary deployment hook tab 22b has a second orthographic projection in the xy plane. In the x-direction, the second orthographic projection is closer to the rotation axis R than the first orthographic projection.

As shown in fig. 13, as the suction cup 201 rotates, the packaging sleeve 9 moves from the first deployment position P1 to the second deployment position P2, and then from the second deployment position P2 to the target position P3. When the packaging sleeve 9 is moved from the first unfolded position P1 to the second unfolded position P2, the same portion of the packaging sleeve 9 (e.g. the second end sheet 92 and the second non-flush structure 921 thereon) will move in the x-direction towards the rotation axis R.

In the presently disclosed embodiment, by disposing the second orthographic projection of the second auxiliary deployment hook tab 22b closer to the rotation axis R than the first orthographic projection of the second main deployment hook projection 12b, it is possible to more easily engage the second auxiliary deployment hook tab 22b to the second non-flush structure 921 of the second end sheet 92 when the packaging sleeve 9 is rotated to the second deployment position P2, thereby facilitating the deployment of the second end opening 92A.

For the same reason, as shown in fig. 13, the orthographic projection of the first auxiliary deployment hook projection 21b in the xy-plane is closer to the rotation axis R than the orthographic projection of the first main deployment hook projection 11b in the xy-plane in the x-direction, which makes it easier to engage the first auxiliary deployment hook projection 21b to the first non-flush structure 911 of the first end sheet 91 when the packaging sleeve 9 is rotated to the second deployment position P2.

For example, as shown in fig. 12, the front projection of the first auxiliary expansion hooking protrusion 21b in the xy plane coincides with the front projection of the first main expansion hooking protrusion 11b in the xy plane, and this arrangement mainly takes into consideration that other components inside the supply device such as a cylinder are spatially avoided, so that the expansion of the packaging sleeve can be ensured, and damage to other components can be avoided.

It is to be understood that the specific configurations of the primary and secondary deployment members shown in the above embodiments are merely illustrative, and that deployment members having other suitable configurations are also within the scope of the embodiments of the present disclosure.

Other constructions or variations

Fig. 14 is a schematic structural view of a second main deployment hook and spacer according to an embodiment of the present disclosure. Fig. 14A is another schematic view of the second main deployment hook and spacer of fig. 14. Fig. 14B is a schematic structural view of the gasket of fig. 14.

For example, as shown in fig. 14 to 14B, the main deployment member further includes a spacer 13. Referring to fig. 11, the spacer 13 may be positioned at the first side S11 of the third bracket 43 between the second main deployment hook 12' and the third bracket 43. By providing the spacer 13, the magnitude of the deformation amount of the second main deployment hook 12' can be adjusted by adjusting the position of the spacer 13 in the x direction.

For example, as shown in fig. 14A, the spacer 13 includes a loop-shaped hole 13A. In order to ensure that the second main deployment hook 12 'can be hooked to the packaging sleeve 9 in the first deployment position P1, the position of the second main deployment hook 12' relative to the third bracket 43 is fixed. However, the spacer 13 may be moved in the x-direction with respect to the second main deployment hook 12' to change the area of the overlapping region between the spacer 13 and the second main deployment hook 12', thereby adjusting the amount of deformation of the second main deployment hook 12 '.

For example, when the spacer 13 moves in the x direction toward the rotation axis R with respect to the second main expansion hook 12', the overlapping area of the spacer 13 and the second main expansion hook 12' becomes large, and the extension length L (i.e., cantilever length) of the second main expansion hook 12 'with respect to the spacer 13 becomes short, and at this time, the second main expansion hook 12' is not easily deformed. In contrast, when the spacer 13 is moved in the x-direction away from the rotation axis R with respect to the second main expansion hook 12', the overlapping area of the spacer 13 and the second main expansion hook 12' becomes smaller, and the extension length L (i.e., cantilever length) of the second main expansion hook 12 'with respect to the spacer 13 becomes longer, and at this time, the second main expansion hook 12' is more easily deformed.

When the second main deployment hook 12 'is provided, it is considered that there is a sufficient contact area between the second main deployment hook and the packaging sleeve 9 (i.e., the depth of the deployment hook 12' extending into the sleeve is large enough) so that the second main deployment hook hooks the packaging sleeve 9, and when the sleeve moves to the target position P3 after deployment, the packaging sleeve is prevented from being damaged due to the large hardness of the second main deployment hook.

For example, as can be seen in fig. 6, the portion of the packaging sleeve 9 that is hooked by the second main deployment hook 12' is the second protrusion 921a, more specifically, the portion of the second protrusion 921a that is adjacent to the seam 93, i.e., adjacent to the notch of the seam 93. If the second main deployment hook stiffness is greater, it is easier to tear the packaging sleeve 9 along the seam 93, thereby degrading the sealability of the packaging sleeve.

In the embodiment of the disclosure, the second main expansion hook 12' is set to be an elastic member, such as a spring leaf, so that the second main expansion hook 12' has a certain deformation, thereby ensuring a large enough contact area between the second main expansion hook 12' and the packaging sleeve 9, and preventing the packaging sleeve from being damaged due to the excessively hard second main expansion hook. For example, the second main deployment hook 12' is a leaf spring having a curved portion.

For example, as shown in fig. 14A, the second main deployment hook 12 includes, in its extending direction, a first end portion 12'a and a second end portion 12' b opposite to each other, the first end portion 12'a being connected to the second bracket 42, the second end portion 12' b being provided so as to be suspended so as to extend into the second end opening 92A and engage with the second protruding portion 921a of the second end sheet 92. That is, the second end 12' b extends in the y-direction in a direction approaching the packaging sleeve 9.

For example, as shown in fig. 14, the spacer 13 includes: a first main surface 131 and a second main surface 132 opposed to each other in the z-direction. In the z-direction, the first major surface 131 is closer to the second major deployment hook 12' than the second major surface 132. For example, as shown in fig. 14B, a part of the first main surface 131 is disposed obliquely to the second main surface 132. Further, for example, a part of the surface of the first main surface 131 closer to the second end portion 12' b side of the second main deployment hook 12 in the y direction is a slope 131a.

Assuming that the sloping surface 131a is planar, i.e. all of the first major surfaces 131 lie in the same plane, the first corner C1 of the spacer 13 is identical to the second corner C2, and the second main deployment hook 12' directly contacts the first corner C1. When the second main deployment hook 12 'is deformed by interaction with the sleeve, the first corner C1 may scratch the second main deployment hook 12'.

In the embodiment of the present disclosure, the portion of the surface 131a is configured as a slope, so that a certain deformation space is provided for the second main expansion hook 12' on the premise of ensuring that the second main expansion hook 12' is not damaged, and the function of guiding the bending deformation direction of the second main expansion hook 12' is performed.

The above embodiments are described taking the example that the first main unfolding hook and the second main unfolding hook have different unfolding hook structures, and in other embodiments, the first main unfolding hook and the second main unfolding hook may have the same unfolding hook structure. Also, the above embodiments are described taking the example that the first auxiliary unfolding hook and the second auxiliary unfolding hook have different unfolding hook structures, and in other embodiments, the first auxiliary unfolding hook and the second auxiliary unfolding hook may have the same unfolding hook structure.

Fig. 15 is a schematic structural diagram of an unfolding hook according to an embodiment of the disclosure. Fig. 15A is a schematic cross-sectional view taken along line B-B of fig. 15.

For example, as shown in fig. 15 and 15A, the first main deployment hook and the second main deployment hook of the embodiment of the present disclosure have the same deployment hook structure 6. The unfolding hook structure 6 comprises: the elastic member 62 and the protruding portion 61 abutting against the elastic member 62. The elastic member 62 has an amount of expansion and contraction in its length direction to control the movement of the projection 62 in a direction toward or away from the packaging sleeve 9, for example, to control the movement of the projection 62 in a direction toward or away from the packaging sleeve 9 in the y direction.

For example, the deployment hook structure 6 further includes a housing 60, the housing 60 being configured to receive the resilient member 62 and the projection 61. That is, the elastic member 62 and the protruding portion 61 are movable back and forth in the y direction within the housing 60. In some embodiments, the housing 60 may be fixedly mounted by being connected to the frame of the feeding apparatus. The connection manner between the housing and the frame is not limited in the embodiments of the present disclosure.

Fig. 16 is a schematic structural diagram of a first main deployment hook and a second main deployment hook according to an embodiment of the disclosure.

For example, as shown in fig. 16, the first main deployment hook 11″ and the second main deployment hook 12″ have the same deployment hook structure 6, wherein the first main deployment hook 11″ is disposed close to the first end sheet 91 of the packaging sleeve 9, and the protruding portion 61 of the first main deployment hook 11″ protrudes in the y direction and toward the direction close to the first end sheet 91. The second main deployment hook 12″ is disposed close to the second end sheet 92 of the packaging sleeve 9, and the projection 61 of the first main deployment hook 12″ projects in the y-direction and toward the direction close to the second end sheet 92.

For example, when the packaging sleeve 9 is moved to the first deployed position, the respective elastic members 62 of the first main deployment hook 11″ and the second main deployment hook 12″ may be driven to protrude in a direction approaching the packaging sleeve 9 such that the protruding portion 61 of the first main deployment hook 11″ protrudes into the first end opening 91A and hooks the first end sheet 91, and the protruding portion 61 of the second main deployment hook 12″ protrudes into the second end opening 92A and hooks the second end sheet 92. This allows the packaging sleeve 9 to be unfolded from a flat to a three-dimensional shape.

In the embodiment of the disclosure, the first auxiliary unfolding hook and the second auxiliary unfolding hook may also have the unfolding hook structures shown in fig. 15 to 16, and the detailed description is not repeated here.

For example, as shown in fig. 3 and 5, the supply apparatus 100 further includes a base 50. For example, the base is located below the frame 40, for example, to support the frame 40.

For example, the deployment device 30 further includes: a tab assembly 33 provided on the base 50, the tab assembly 33 including a tab 331, the tab 331 being configured to contact a surface of the flat packaging sleeve 9 to apply a force to the surface to deform the packaging sleeve 9 from the flat shape to the tubular shape.

In the presently disclosed embodiments, by providing the tab assembly 33, on the one hand, partial bending and twisting deformations of the packaging sleeve may be counteracted, and on the other hand, the packaging sleeve may be assisted in opening in advance.

For example, the tab member 33 is disposed between the second deployment position P2 and the target position P3 such that, upon re-deployment of the undeployed packaging sleeve 9 in the second deployment position P2, the tab member 33 may further assist in the deployment of the sleeve by contacting and abutting a surface (e.g., the lower surface in the figures) of the packaging sleeve 9 to apply an upward jacking force thereto.

Fig. 17 is a schematic diagram of the operation of the bump assembly provided by the embodiments of the present disclosure.

For example, referring to fig. 11 and 17, the packaging sleeve 9 includes: a cavity 90 and a plurality of side surfaces surrounding the cavity 90, the plurality of side surfaces including at least two side surfaces S90 facing the base 50 in the z-direction and connected to each other. One side surface S90 of the at least two side surfaces S90 (i.e., S90 located on the left side in fig. 11, 17) is configured to be adsorbed by the adsorption device 20, and the other side surface S90 of the at least two side surfaces S90 (i.e., S90 located on the right side in fig. 11, 17) is configured to be in contact with the bump 331. Through the above arrangement mode, the mutual interference between the adsorption device and the lug component can be avoided, and the unfolding of the packaging sleeve is assisted under the condition that the normal operation of the adsorption device is not influenced.

Fig. 18 is another partial structural schematic view of a supply device according to an embodiment of the present disclosure.

For example, as shown in fig. 18, in the extending direction of the side surface of the packing sleeve 9, the total length of the side surface S90 is L1; the distance from the boss 331 to one of the first end opening 91A and the second end opening 92A in the extending direction of the side surface of the packing sleeve 9 is L2, and L1 and L2 satisfy the following condition:

when the packing sleeve 9 is unfolded by the first auxiliary unfolding hooks 21 and the second auxiliary unfolding hooks 22, the packing sleeve 9 may be deformed to have a low middle and a high side in the y direction (for example, as shown in fig. 9B).

In the embodiment of the present disclosure, by locating the projection 331 near the middle of the packaging sleeve 9 (i.e., satisfying the conditions of L1 and L2 described above), the sleeve can be lifted up in the middle, thereby counteracting the deformation of the sleeve at the second deployment position P2, which is low in the middle and high on both sides.

Fig. 19 is a schematic structural view of a bump according to an embodiment of the present disclosure.

For example, referring to fig. 17 and 19, the projection 331 has an arc-shaped surface S331, and a side surface S90 on the right side of the packing sleeve 9 is provided to be in contact with the arc-shaped surface S331 when the packing sleeve 9 moves.

As can be seen from fig. 17, in the process of expanding the packing sleeve 9 from the flat shape to the solid shape, since the top surface of the projection 331 is an arc-shaped surface, not only damage to the side surface S90 by the projection 331 is avoided, but also sliding contact of the side surface S90 on the top surface is facilitated.

In some embodiments, the number of the protrusions 331 is plural, and the protrusions 331 are arranged at intervals in the extending direction of the side surface S90. The plurality of bumps 331 may be disposed at equal intervals or at unequal intervals. The number of lugs 331 is mainly determined by the length of the packaging sleeve 9, and a person skilled in the art can set a suitable number of lugs according to the length thereof.

In some embodiments, the tab assembly 33 further includes a tab support 332 by which the tab 331 may be connected to the base 50.

Fig. 20 is a schematic structural view of a bump support provided in an embodiment of the present disclosure.

For example, as shown in fig. 5 and 20, the bump assembly 33 further includes a bump support 332, the bump support 332 including at least one first through hole 341 and at least one second through hole 342. The bump 331 is connected to the bump supporter 332 through the first connector via at least one first through hole 341, and the bump 331 is connected to the base 50 through the second connector via at least one second through hole 342. For example, the first and second connectors are screws or bolts or the like.

It is understood that the above connection of the bump and bump support is merely illustrative and that other suitable connection means may be used in embodiments of the present disclosure.

Fig. 21 is a schematic structural view of another bump support provided in an embodiment of the present disclosure.

For example, as shown in fig. 21, the bump supporter 332' may include a plurality of first through holes 341' and a plurality of second through holes 342'. For example, the plurality of first through holes 341 'may be spaced apart in the z direction, and the plurality of second through holes 342' may be spaced apart in the y direction.

In the embodiment of the present disclosure, by providing a plurality of first through holes 341', the height of the bump 331 in the z direction is advantageously flexibly adjusted. By providing a plurality of second through holes 342', the position of the projection 331 in the y-direction is advantageously flexibly adjusted.

In addition, in order to verify the cartridge-in-cartridge condition of the feeding device 100 modified in the embodiment of the present disclosure, the present application uses a 1 liter-volume cartridge as a sample, and the feeding process of the feeding device shown in fig. 3 is monitored.

In the case where the feeding device 100 is not provided with the bump assemblies 33, it was measured that the time point at which the paper cassette cartridge appears is 40 minutes and only once in the 1 hour test period. The feeding device 100 provided by the embodiment of the present disclosure reduces the frequency of occurrence of the paper cassette, compared to the paper cassette occurring every 15 minutes before improvement, thereby improving production efficiency and ensuring product quality.

In the case where the feeding device 100 is provided with the bump assemblies 33, it was measured that the time point at which the paper cassette cartridge appeared was 65 th minute in the 2-hour test period. Compared with the situation that the bump component 33 is not arranged, the time for clamping is prolonged, and the production efficiency is further improved.

According to an embodiment of the present disclosure, there is also provided a supply method of packaging sleeves. For example, the feeding method is realized by the feeding apparatus provided in any of the foregoing embodiments.

Fig. 22 is a flowchart of a method of feeding packaging sleeves provided by an embodiment of the present disclosure. For example, referring to fig. 1 to 21 and fig. 22 above, a method for feeding packaging sleeves 9 according to an embodiment of the present disclosure includes:

s100: sucking the flat packing sleeve 9 to drive the flat packing sleeve 9 to move from the initial position to the target position P3 along the moving path, wherein the packing sleeve 9 comprises a first end sheet 91 and a second end sheet 92, and the first end sheet 91 and the second end sheet 92 are provided with non-flush structures;

s200: moving the packaging sleeve 9 to the first deployment position P1 and using the first and second main deployment hooks 11, 12 to engage the non-flush arrangement of both the first and second end sheets 91, 92, respectively, to deploy the flat packaging sleeve 9;

S300: the packaging sleeve 9 which is not unfolded in the first unfolded position P1 is moved to the second unfolded position P2, and the non-flush structure of both the first end sheet 91 and the second end sheet 92 is engaged with the first auxiliary unfolding hook 21 and the second auxiliary unfolding hook 22, respectively, to unfold the non-unfolded packaging sleeve 9 again.

In the feeding method provided by the embodiment of the disclosure, the packaging sleeve which is not unfolded at the first unfolding position is unfolded again, so that stability of sleeve unfolding and forming is guaranteed, and production efficiency and qualification rate are improved. Further, by having the first main deployment hook 11 and the second main deployment hook 12 hook the first non-flush structure 911 and the second non-flush structure 921, respectively, the chance of the sleeve being deployed in the first deployment position P1 can be increased. By having the first and second auxiliary deployment hooks 21, 22 respectively catch on the first and second non-flush structures 911, 921, the chance of the sleeve being deployed in the second deployment position P2 is increased.

For example, as shown in fig. 13, the packaging sleeve 9 is moved along the arc-shaped movement path MP from the first deployed position P1 to the second deployed position P2.

For example, when the packaging sleeve 9 is moved from the first deployment position P1 to the second deployment position P2, the rotation angle α of the packaging sleeve 9 is greater than 0 ° and equal to or less than 40 °. Preferably, the rotation angle α is 15 ° to 25 °, if the angle is too small, the packaging sleeve 9 is not completely detached from the receiving means, if the angle is too large, the packaging sleeve 9 rotates rapidly, is deformed and is not easy to open, and the packaging sleeve 9 is easily damaged.

For example, the above-mentioned supplying method further includes:

s400: between the initial position and the target position P3, a force is applied to the flat packing sleeve 9 to deform the packing sleeve 9 from the flat shape to the solid shape.

For example, between the second deployment position P2 and the target position P3, a force for deforming the packing sleeve 9 from a flat shape to a three-dimensional shape is applied to the flat packing sleeve 9 by the bump assembly 33, thereby assisting the deployment of the sleeve.

In the above-mentioned feeding method provided by the embodiments of the present disclosure, the specific structures of the feeding device and the packaging sleeve may be referred to the description in the previous embodiments, and the detailed description is not repeated here.

In summary, by adopting the supply device and the supply method provided by the embodiment of the disclosure, the packaging sleeve which is not unfolded by the main unfolding component can be unfolded again into a three-dimensional shape by the auxiliary unfolding component, so that the stability of sleeve unfolding and forming is ensured, and the production efficiency and the qualification rate are improved.

In this context, the following points need to be noted:

(1) The drawings of the embodiments of the present disclosure relate only to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.

(2) The embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict.

(3) The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the disclosure, which is defined by the appended claims.

The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it should be covered in the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A supply device for packaging sleeves, comprising:

a housing means for housing a plurality of said packaging sleeves folded into a flat shape and stacked on each other; wherein, the packaging sleeve includes: a seam and first and second ends opposite to each other in an extending direction of the seam, the first and second ends being provided with first and second end openings, respectively; the packaging sleeve further comprises: a first end sheet surrounding the first end opening and a second end sheet surrounding the second end opening, both the first end sheet and the second end sheet being provided with a non-flush structure; the non-flush structure includes a protrusion or a notch;

A conveying apparatus comprising: an adsorption device and a deployment device, wherein,

the adsorption device is configured to sequentially adsorb a plurality of packaging sleeves in the accommodating device, is pivoted to a rotating shaft and rotates around the rotating shaft so as to drive the packaging sleeves to move from an initial position in the accommodating device to a target position outside the accommodating device along a moving path taking the rotating shaft as a center;

the deployment device includes: a main deployment member disposed at a first deployment position between the initial position and the target position and configured to: engaging at least one non-flush structure in the first expanded position with the first end sheet and the second end sheet to expand the flat packaging sleeve when the packaging sleeve is moved to the first expanded position;

the deployment device further comprises: an auxiliary deployment member disposed at a second deployment position between the first deployment position and the target position, the second deployment position being disposed outside the containment device and spaced apart from the first deployment position; the auxiliary deployment member is configured to: in the second deployed position, engages at least one non-flush structure in the first end sheet and the second end sheet.

2. The supply apparatus according to claim 1, wherein:

the first end sheet includes a first non-flush structure comprising: a first tab located at an edge of the first end sheet;

the second end sheet includes a second non-flush structure comprising: a second tab located at an edge of the second end sheet;

the main deployment member comprises: a first main deployment hook configured to engage the first tab in the first deployed position and a second main deployment hook configured to engage the second tab in the first deployed position.

3. The supply apparatus according to claim 1, wherein:

the first end sheet includes a first non-flush structure including a first tab located at an edge of the first end sheet;

the auxiliary deployment member includes: a first auxiliary deployment hook configured to engage the first protrusion in the second deployment position and a second auxiliary deployment hook configured to engage the second protrusion in the second deployment position.

4. The supply apparatus according to claim 1, wherein:

a plurality of said packaging sleeves being stacked on each other in the longitudinal direction;

the main deployment member comprises: the first main unfolding hook and the second main unfolding hook;

the auxiliary deployment member includes: the first auxiliary unfolding hook and the second auxiliary unfolding hook;

the housing device includes: a first side and a second side opposite to each other in a first lateral direction, the first end opening being disposed toward the first side, the second end opening being disposed toward the second side, the first lateral direction being parallel to a plane perpendicular to the longitudinal direction;

the supply device of packaging sleeves further comprises: a frame comprising a first bracket extending in the longitudinal direction and located on a first side of the containment device;

the first main unfolding hook and the first auxiliary unfolding hook are connected with the first bracket.

5. The supply apparatus according to claim 4, wherein:

the first main deployment hook includes: the extension direction of the first main unfolding hook main body part is different from the extension direction of the first main unfolding hook protruding part;

The first auxiliary unfolding hook comprises: a first auxiliary unfolding hook body part and a first auxiliary unfolding hook protruding part connected with the first auxiliary unfolding hook body part, wherein the extending direction of the first auxiliary unfolding hook body part and the extending direction of the first auxiliary unfolding hook protruding part are different from each other;

the first main deployment hook body portion and the first auxiliary deployment hook body portion are both connected with the first bracket, and the first main deployment hook projection and the first auxiliary deployment hook projection are configured to be suspended so as to enter the first end opening and engage with the first projection of the first end sheet, respectively.

6. The supply apparatus of claim 5, wherein the first auxiliary deployment hook tab is further from the receiving means than the first main deployment hook tab in the longitudinal direction and is spaced apart a first longitudinal distance in the longitudinal direction.

7. The supply apparatus of claim 4, wherein the frame further comprises:

a second bracket extending in the longitudinal direction and located on a second side of the receiving means;

the second main unfolding hook and the second auxiliary unfolding hook are connected with the second bracket.

8. The supply apparatus according to claim 7, wherein:

the second main deployment hook includes: the extension direction of the second main unfolding hook main body part is different from the extension direction of the second main unfolding hook protruding part;

the second auxiliary unfolding hook comprises: the auxiliary unfolding hook comprises a second auxiliary unfolding hook main body part and a second auxiliary unfolding hook connecting piece connected with the second auxiliary unfolding hook main body part, wherein the extending direction of the second auxiliary unfolding hook main body part is different from that of the second auxiliary unfolding hook connecting piece;

the second main unfolding hook body portion and the second auxiliary unfolding hook body portion are connected with the second bracket, and the second main unfolding hook protruding portion and at least part of the second auxiliary unfolding hook connecting piece are suspended so as to enter the second end opening and be connected with the second protruding portion of the second end sheet respectively.

9. The supply apparatus of claim 8, wherein in the longitudinal direction the second auxiliary deployment hook tab is further from the receiving means than the second main deployment hook tab and is spaced apart a second longitudinal distance in the longitudinal direction.

10. The supply apparatus according to claim 4, wherein,

the first auxiliary unfolding hook protruding part of the first auxiliary unfolding hook is obliquely arranged relative to a plane perpendicular to the longitudinal direction;

the second auxiliary unfolding hook connecting piece of the second auxiliary unfolding hook is obliquely arranged relative to a plane perpendicular to the longitudinal direction.

11. The supply apparatus according to claim 4, wherein:

the rotation axis extends in the first transverse direction;

the second main unfolding hook protruding part of the second main unfolding hook is provided with a first orthographic projection in a plane vertical to the longitudinal direction, and the second auxiliary unfolding hook connecting piece of the second auxiliary unfolding hook is provided with a second orthographic projection in a plane vertical to the longitudinal direction;

in a second lateral direction, the second orthographic projection is closer to the rotation axis than the first orthographic projection, the second lateral direction being in the same plane as the first lateral direction and intersecting each other.

12. The supply apparatus according to claim 7, wherein:

the frame further comprises: the third bracket is connected with the second bracket and extends along a second transverse direction, and the second transverse direction and the first transverse direction are positioned in the same plane and mutually crossed;

The third bracket includes: a first side and a second side opposite to each other in the longitudinal direction, the second side being further from the receiving means than the first side;

the second main unfolding hook is positioned on the first side of the third support, and the second auxiliary unfolding hook is positioned on the second side of the third support.

13. The supply apparatus according to claim 12, wherein:

the main deployment member further comprises: a spacer positioned on a first side of the third bracket and between the second main deployment hook and the third bracket;

the gasket includes: a first main surface and a second main surface opposite to each other in the longitudinal direction, wherein the first main surface is closer to the second main deployment hook than the second main surface in the longitudinal direction;

a portion of the first major surface is disposed at an incline relative to the second major surface.

14. A supply apparatus according to claim 13, characterized in that,

the second main deployment hook is a spring piece including a first end and a second end opposite to each other in an extending direction thereof, the first end being connected to the second bracket, the second end being provided suspended so as to enter the second end opening and engage with the second protruding portion of the second end sheet.

15. The supply apparatus according to claim 4, wherein,

the center line of the orthographic projection of the first auxiliary unfolding hook protruding part of the first auxiliary unfolding hook in the plane vertical to the longitudinal direction and the center line of the orthographic projection of the second auxiliary unfolding hook connecting piece of the second auxiliary unfolding hook in the plane vertical to the longitudinal direction are not collinear.

16. The supply apparatus according to claim 4, wherein:

the first main unfolding hook and the second main unfolding hook have the same unfolding hook structure,

the unfolding hook structure comprises: the elastic piece and the bulge abutting against the elastic piece are provided with a telescopic quantity in the length direction of the elastic piece so as to control the bulge to move towards the direction approaching to or away from the packaging sleeve.

17. The supply apparatus according to claim 1, wherein:

the supply device of packaging sleeves further comprises: a base;

the deployment device further comprises: a tab assembly disposed on the base, the tab assembly including a tab configured to contact a surface of the flat packaging sleeve to apply a force to the surface that deforms the packaging sleeve from the flat to a tubular shape.

18. The supply apparatus according to claim 17, wherein:

the packaging sleeve comprises: a cavity and a plurality of side surfaces surrounding the cavity, the plurality of side surfaces comprising: at least two side surfaces facing the chassis in a longitudinal direction and connected to each other;

one of the at least two side surfaces is arranged to be adsorbed by the adsorption means, and the other of the at least two side surfaces is arranged to be in contact with and held against the bump.

19. The supply apparatus according to claim 18, wherein:

the packaging sleeve comprises a first end opening and a second end opening opposite to each other in the direction of extension thereof;

in the extending direction of the side surface, the total length of the side surface is L1, the distance from the bump to one of the first end opening and the second end opening is L2, and L1 and L2 satisfy the following condition:

。

20. the feeding apparatus of claim 18, wherein the projection has an arcuate surface, the other of the at least two side surfaces being arranged to contact and be held against the arcuate surface as the packaging sleeve moves.

21. The supply apparatus according to claim 18, wherein the number of the projections is plural, and a plurality of the projections are arranged at intervals in the extending direction of the packaging sleeve.

22. The supply apparatus of claim 17, wherein the bump assembly further comprises:

a bump support comprising at least one first through hole and at least one second through hole;

the first connecting piece is connected with the bump supporting piece through the at least one first through hole by the bump;

the bump is connected with the base through the at least one second through hole by the second connecting piece.

23. The feeding apparatus as claimed in any one of claims 1 to 22, wherein,

the packaging sleeve is configured to: when the suction device is rotated, the packaging sleeve is moved from the first deployed position to the second deployed position along an arc-shaped movement path centered on the rotation axis.

24. The supply apparatus of claim 23, wherein the packaging sleeve rotates through an angle of greater than 0 ° and less than or equal to 40 ° during movement of the packaging sleeve from the first deployed position to the second deployed position.

25. A method of supplying packaging sleeves, comprising:

adsorbing the flat packaging sleeve to drive the flat packaging sleeve to move from an initial position to a target position along a moving path; wherein, the packaging sleeve includes: a first end sheet comprising a first non-flush structure and a second end sheet comprising a second non-flush structure;

moving the packaging sleeve to a first unfolding position, and respectively engaging the first non-flush structure and the second non-flush structure by using a first main unfolding hook and a second main unfolding hook so as to unfold the flat packaging sleeve; and

and moving the packaging sleeve which is not unfolded at the first unfolding position to a second unfolding position, and respectively engaging the first non-flush structure and the second non-flush structure by utilizing a first auxiliary unfolding hook and a second auxiliary unfolding hook so as to unfold the non-unfolded packaging sleeve again.

26. The method of claim 25, wherein the packaging sleeve moves along an arcuate path of movement from the first deployed position to the second deployed position.

27. The feeding method according to claim 26, wherein the rotation angle of the packing sleeve is greater than 0 ° and equal to or less than 40 ° when the packing sleeve is moved from the first deployed position to the second deployed position.

28. The supply method according to any one of claims 25 to 27, characterized by further comprising:

and applying a force to the flat packing sleeve between the initial position and the target position to deform the packing sleeve from the flat shape to a three-dimensional shape.