CN219172873U

CN219172873U - Tensioning mechanism and sealing production line

Info

Publication number: CN219172873U
Application number: CN202223369654.0U
Authority: CN
Inventors: 王全林; 陈慧; 谈文焕; 姚键锋; 王顶峰; 杜林�
Original assignee: Shenzhen Taowine Industrial Co ltd
Current assignee: SHENZHEN DAOYUAN INDUSTRIAL CO LTD
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-06-13
Anticipated expiration: 2032-12-14

Abstract

The application provides a tensioning mechanism and seal production line relates to material bag and seals technical field. The tensioning mechanism comprises a workbench, at least one group of clamping assemblies, driving parts and transmission assemblies, wherein the clamping assemblies are arranged on the workbench in a sliding mode, each group of clamping assemblies comprises two clamps which are oppositely arranged, the transmission assemblies are arranged on the workbench, the clamping assemblies are in transmission connection with the transmission assemblies, and the driving parts drive the transmission assemblies to drive the two clamps which are oppositely arranged to be close to or far away from each other. The relative positions of the two clamps can be quickly adjusted through the matching of the driving piece and the transmission assembly, and the problem that the whole structure of the tensioning mechanism is relatively complex due to the fact that a plurality of power sources are needed to tension the bag mouth of the material bag in the sealing process of the material bag is avoided.

Description

Tensioning mechanism and sealing production line

Technical Field

The application relates to the technical field of material bag sealing, in particular to a tensioning mechanism and a sealing production line.

Background

In industrial production, products are required to be packaged, and in the material packaging process, the products are usually put into material bags and then sealed. In the material sealing process, the bag mouth of the material bag needs to be tensioned so as to facilitate the sealing operation. But the existing sealing equipment adopts two clamping pieces to simultaneously apply force to two ends of the bag mouth of the material bag so as to pull the bag mouth of the material bag into a straight line, thereby facilitating the subsequent sealing. In the prior art, the tensioning mechanism needs more power sources and has a relatively complex structure.

For this purpose, a tensioning mechanism and a sealing production line are provided.

Disclosure of Invention

In view of this, the purpose of this application is to provide a straining device and seal production line, aims at solving among the prior art, and straining device required power supply is more, and the structure is complicated technical problem relatively.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

in a first aspect, embodiments of the present application provide a tensioning mechanism comprising:

a work table;

the clamping assemblies are arranged on the workbench in a sliding manner, and each clamping assembly comprises two clamps which are oppositely arranged;

the clamping assembly is in transmission connection with the transmission assembly, and the driving piece drives the transmission assembly to drive the two clamps which are oppositely arranged to be close to or far away from each other.

In one embodiment of the first aspect, the transmission assembly includes a first gear, a support member, and two first racks, wherein an axis of the first gear is fixedly connected with an output shaft of the driving member, the two first racks are located on opposite sides of the first gear and are engaged with the first gear, and two ends of the support member are respectively connected with the first racks and the fixture.

In one embodiment of the first aspect, between two of the clamps disposed opposite to each other, one of the first racks and one of the clamps are connected by only one of the supporting members.

In one embodiment of the first aspect, the support member includes a fixing block and an elastic member, the fixing block is fixed on the first rack, and two ends of the elastic member are respectively connected with the fixing block and the clamp.

In one embodiment of the first aspect, the clamping assembly has a plurality of groups, each group of the clamps oppositely arranged are respectively connected with different first racks, and a plurality of clamps with the same moving direction are connected with the same first rack.

In one embodiment of the first aspect, the fixture includes a first clamping block, an air cylinder and a second clamping block, the first clamping block is connected with the air cylinder, and under the telescopic action of the air cylinder, the first clamping block is attached to or detached from the second clamping block.

In one embodiment of the first aspect, the fixture further includes a second rack, a third rack, a second gear and a mounting housing, two ends of the second rack are respectively connected with the first clamping block and the air cylinder, two ends of the third rack are respectively connected with the second clamping block and the mounting housing, the second rack and the third rack are both inserted in the mounting housing, the mounting housing is slidably connected with the workbench, the second gear is rotatably disposed on the mounting housing, and the second rack and the third rack are both engaged with the second gear, connected with the third gear and are respectively located on two opposite sides of the second gear.

In one embodiment of the first aspect, a sliding rail is provided at a bottom side of the workbench, and a slider is provided at a bottom of the mounting housing, and the slider is in sliding fit with the sliding rail.

In one embodiment of the first aspect, the driving member is a rotating electric machine.

In a second aspect, embodiments of the present application further provide a sealing production line, including the tensioning mechanism described in any of the above embodiments.

Compared with the prior art, the beneficial effects of this application are: the application provides a tensioning mechanism and seal production line, can be applied to material bag and seal the operation. The tensioning mechanism comprises a workbench, at least one group of clamping assemblies, a driving piece and a transmission assembly. Each clamping assembly comprises two clamps which are oppositely arranged, and the driving piece drives the transmission assembly to drive the two clamps which are oppositely arranged to be close to or far away from each other. Therefore, when the material bag is tensioned, two ends of the material bag are clamped by two clamps which are arranged oppositely, and under the action of the driving piece and the transmission assembly, the two clamps are far away from each other, so that the bag opening of the material bag is tensioned into a straight line, and the subsequent sealing operation is facilitated. The relative positions of the two clamps can be quickly adjusted only through the cooperation of the driving piece and the transmission assembly, so that the problem that the whole structure of the tensioning mechanism is relatively complex because a plurality of power sources are needed to tension the bag mouth of the material bag in the sealing process of the material bag is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 illustrates a schematic structural view of a tensioning mechanism in some embodiments of the present application;

fig. 2 shows an enlarged view of the portion a in fig. 1;

fig. 3 shows an enlarged view of the portion B in fig. 1;

FIG. 4 illustrates a schematic top view of a tensioning mechanism in some embodiments of the present application;

fig. 5 shows a partial enlarged view of fig. 4.

Description of main reference numerals:

100-tensioning mechanism; 110-a driving member; 120-a transmission assembly; 121-a first gear; 122-a first rack; 130-a clamp; 131-a first clamping block; 132-a second clamping block; 133-a slider; 134-cylinder; 135-a second rack; 136-a third rack; 137-a second gear; 138-mounting a housing; 140-working table; 141-a slide rail; 150-a support; 151-a fixed block; 152-elastic member.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the prior art, when sealing the material bag, two clamps 130 are adopted to simultaneously stress two ends of the bag mouth of the material bag, so that the material bag is tensioned. Each clamp 130 requires a power source to drive to adjust the distance between the two clamps, and requires a large number of power sources, and the structure is relatively complex. Meanwhile, the existing tensioning mode cannot meet the requirement of simultaneous tensioning operation of a plurality of material bags, and production efficiency is low.

Embodiments of the first aspect of the present application provide a tensioning mechanism 100, which is applicable to various situations where objects need to be tensioned, and in the present application, the tensioning mechanism 100 is applied to a sealing production line of a material bag. The tensioning mechanism 100 provided by the application drives the transmission assembly 120 to drive the two clamps 130 which are oppositely arranged to be close to or far away from each other through a single power source so as to tension the bag mouth of the material bag, thereby facilitating subsequent sealing operation. The problem that a plurality of power sources are needed to tighten the bag mouth of the material bag in the sealing process of the material bag and the whole structure of the tightening mechanism 100 is relatively complex is avoided.

As shown in fig. 1, the tensioning mechanism 100 includes a table 140, a clamping assembly, a drive member 110, and a transmission assembly 120. The workbench 140 is an installation carrier of the clamping assembly, the driving member 110 and the transmission assembly 120, the clamping assembly is used for clamping two ends of a bag opening of the material bag, and the driving member 110 and the transmission assembly 120 are used for adjusting the relative positions of the clamping assembly so as to tighten the bag opening of the material bag.

Referring to fig. 4, in particular, the tensioning mechanism 100 includes at least one set of clamping assemblies slidably disposed on the table 140, and each set of clamping assemblies includes two clamps 130 disposed opposite to each other. The driving member 110 and the transmission assembly 120 are both installed on the workbench 140, the clamping assembly is in transmission connection with the transmission assembly 120, and the driving member 110 drives the transmission assembly 120 to drive the two clamps 130 which are oppositely arranged to be close to or far away from each other so as to adjust the relative positions of the two clamps 130 and tighten the mouth of the material bag.

Further, as shown in fig. 5, the transmission assembly 120 includes a first gear 121, a supporting member 150 and two first racks 122, wherein the axis of the first gear 121 is fixedly connected with the output shaft of the driving member 110, the two first racks 122 are located at two opposite sides of the first gear 121 and are engaged with the first gear 121, and two ends of the supporting member 150 are respectively connected with the first racks 122 and the fixture 130.

Specifically, a through groove is formed in the workbench 140, the first gear 121 is mounted in the through groove, the driving member 110 is fixed on the bottom side of the workbench 140, and an output shaft of the driving member 110 is fixed with an axis of the first gear 121 to drive the first gear 121 to rotate. The two first racks 122 are respectively engaged with the first gear 121 at opposite sides of the first gear 121, and move in opposite directions during the rotation of the first gear 121, and the two first racks 122 are moved toward or away from each other by the forward and reverse rotation of the driving member 110. Because the supporting piece 150 is disposed between the first rack 122 and the clamp 130, in the process that the first rack 122 approaches or separates from each other, the supporting piece 150 moves along with the first rack 122, and then drives the clamp 130 to move, so that the two clamps 130 that are disposed opposite to each other approach or separate from each other.

Further, between the two jigs 130 disposed opposite to each other, one first rack gear 122 and one jig 130 are connected by only one support 150. Only one supporting piece 150 is needed to meet the requirement that the first rack 122 drives the clamp 130 to move, so that the cost is reduced, and the whole is more simplified. The two first racks 122 are respectively provided with a supporting member 150, which is used for being respectively connected with the two clamps 130 which are oppositely arranged, so as to drive the two clamps 130 to simultaneously move along opposite directions, thereby improving the adjustment efficiency.

Still further, the clamping assemblies have a plurality of groups, the number of the clamping assemblies can be selected from two groups, three groups, four groups, and the like, in this embodiment, the number of the clamping assemblies is three groups, each group of the clamps 130 disposed oppositely is connected with a different first rack 122, and a plurality of clamps 130 with the same moving direction are connected with the same first rack 122.

Specifically, each first rack 122 can simultaneously drive a plurality of clamps 130 to move, and each clamping assembly can clamp and tighten one material bag. The stations work simultaneously, so that the equipment working time is shortened, the structure of the tensioning mechanism 100 is simplified, the cost is reduced, and the working efficiency is improved.

As shown in fig. 2, in some embodiments of the first aspect of the present application, the support 150 includes a fixing block 151 and an elastic member 152, wherein the fixing block 151 is fixed on the first rack gear 122, and both ends of the elastic member 152 are connected to the fixing block 151 and the clamp 130, respectively.

Specifically, during the movement of the first rack 122, the fixing hole and the elastic member 152 drive the clamp 130 to move. When the material bag is tensioned, the driving member 110 drives the first gear 121 to rotate, and the first gear 121 drives the first rack 122 and the clamps 130 to move, so that the two clamps 130 are far away. However, in the actual operation process, the moving distance of the two first racks 122 is difficult to be exactly consistent with the bag pulling distance of the material bag, and the moving distance of the first racks 122 is slightly larger than the bag pulling distance of the material bag. At this time, due to the limitation of the bag pulling distance of the material bag, the clamp 130 is no longer moved, the first rack 122 drives the support member 150 to approach the clamp 130, and the elastic member 152 is in a compressed state. After the driving member 110 is suspended, the compression elastic force of the elastic member 152 pushes the clamps 130 in a direction away from the material bag, and the clamps 130 at both sides operate simultaneously, so that the two clamps 130 arranged oppositely are kept relatively still, and the material bag is always in a tensed state.

Further, the elastic member 152 may be selected to be a coil spring or a gas spring. In this embodiment, the elastic member 152 is a coil spring.

As shown in fig. 5, in some embodiments of the first aspect of the present application, the clamp 130 includes a first clamping block 131, a cylinder 134, and a second clamping block 132, and the first clamping block 131 is attached to or detached from the second clamping block 132 under the telescopic action of the cylinder 134.

Specifically, the first clamping block 131 is connected with the air cylinder 134, the air cylinder 134 is connected with the external air compressor, and the first clamping block 131 and the second clamping block 132 are far away from or near to each other by the telescopic movement of the air cylinder 134. The material bag is placed between the first clamping block 131 and the second clamping block 132, and when the first clamping block 131 is attached to the second clamping block 132, the material bag is clamped by the clamp 130.

Further, as shown in fig. 2, the clamp 130 further includes a second rack 135, a third rack 136, a second gear 137 and a mounting housing 138, and the first clamping block 131 and the second clamping block 132 are simultaneously moved in opposite directions by the arrangement of the second rack 135, the third rack 136 and the second gear 137.

Specifically, two ends of the second rack 135 are respectively connected with the first clamping block 131 and the air cylinder 134, two ends of the third rack 136 are respectively connected with the second clamping block 132 and the installation shell 138, the second rack 135 and the third rack 136 are respectively inserted into the installation shell 138, the installation shell 138 is slidably connected with the workbench 140, the second gear 137 is rotatably arranged on the installation shell 138, and the second rack 135 and the third rack 136 are respectively connected with the second gear 137 in a meshed manner and are positioned on two opposite sides of the second gear 137. In the process that the cylinder 134 drives the second rack 135 to move, the second rack 135 drives the second gear 137 to rotate, and then drives the third rack 136 to move, so as to realize the attachment or detachment of the first clamping block 131 and the second clamping block 132.

As shown in fig. 2, in some embodiments of the first aspect of the present application, a bottom side of the table 140 is provided with a slide rail 141, and a bottom of the mounting housing 138 is provided with a slider 133, the slider 133 being in sliding engagement with the slide rail 141.

Specifically, the slider 133 is fixed at the bottom of the installation housing 138, and the slide rail 141 is located at the middle of the workbench 140, so that the movement of the clamping block is facilitated in the position change process of the clamping block through the sliding fit of the slider 133 and the slide rail 141.

Further, as shown in fig. 3, a through groove is formed in the middle of the table 140 for placing the first gear 121, and the through groove is located at the bottom side of the sliding rail 141.

Further, as shown in fig. 1, the driving member 110 is a rotating motor, the rotating motor is mounted at the bottom of the workbench 140, and an output shaft of the rotating motor passes through the workbench 140 and extends into the through groove to be connected with the axle center of the first gear 121 so as to drive the first gear 121 to rotate.

Embodiments of the second aspect of the present application also provide a closure line comprising the tensioning mechanism 100 of any of the embodiments described above.

The sealing production line provided by the embodiment of the second aspect of the present application has the tensioning mechanism 100 provided by the embodiment of the first aspect, and therefore, has all the beneficial effects of any one of the tensioning mechanisms 100 in the foregoing embodiments, which are not described in detail herein.

The working principle of the application is as follows:

two clamps 130 that set up relatively are removed simultaneously through single power supply, and two clamps 130 centre gripping material bag's sack both ends respectively, through adjusting the relative position of two clamps 130, make material bag sack be in the state of tightening, be convenient for follow-up sealing.

In the working process, first, the driving member 110 is started, the driving member 110 drives the first gear 121 to rotate, the first gear 121 drives the first rack 122 to approach each other, and simultaneously, two clamps 130 arranged oppositely are connected with the first rack 122 through the supporting member 150, so that the two clamps 130 approach each other, and clamping of the material bag is facilitated.

Secondly, the cylinder 134 is started, the cylinder 134 stretches out towards the direction of the first clamping block 131, the second rack 135 and the first clamping block 131 are driven to move along the direction away from the second clamping block 132, the first clamping block 131 drives the second gear 137 to rotate, and then the third rack 136 and the second clamping block 132 are driven to move along the direction close to the workbench 140, so that the first clamping block 131 and the second clamping block 132 are separated, a material bag mouth filled with materials is placed between the first clamping block 131 and the second clamping block 132, and the cylinder 134 is started to shrink again, so that the first clamping block 131 is attached to the second clamping block 132, and the material bag is clamped.

Finally, the driving member 110 is started again, so that the driving member 110 is reversed, the two opposite clamps 130 are far away, the bag opening of the material bag is tensioned, the moving distance of the first rack 122 is slightly larger than the bag pulling distance of the material bag, at this time, the clamps 130 are not moved any more due to the bag pulling distance limitation of the material bag, the first rack 122 drives the supporting member 150 to approach the clamps 130, and the elastic member 152 is in a compressed state. After the driving member 110 is suspended, the compression elastic force of the elastic member 152 pushes the clamps 130 in a direction away from the material bag, and the clamps 130 at both sides operate simultaneously, so that the two clamps 130 arranged oppositely are kept relatively still, and the material bag is always in a tensed state.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. A tensioning mechanism, comprising:

a work table;

2. The tensioning mechanism according to claim 1, wherein the transmission assembly comprises a first gear, a supporting member and two first racks, the axes of the first gear are fixedly connected with the output shaft of the driving member, the two first racks are located on two opposite sides of the first gear and are in meshed connection with the first gear, and two ends of the supporting member are connected with the first racks and the clamp respectively.

3. A tightening mechanism according to claim 2, wherein between two of the clamps disposed opposite each other, one of the first racks and one of the clamps are connected by only one of the supporting members.

4. A tightening mechanism according to claim 3, wherein the support member comprises a fixed block and an elastic member, the fixed block being fixed to the first rack, both ends of the elastic member being connected to the fixed block and the clamp, respectively.

5. A tightening mechanism according to claim 3, wherein the clamping assembly has a plurality of groups, each of the oppositely disposed clamps being respectively connected to a different one of the first racks, and a plurality of the clamps having the same moving direction being connected to the same one of the first racks.

6. The tightening mechanism according to any one of claims 1 to 5, wherein the clamp comprises a first clamp block, an air cylinder and a second clamp block, the first clamp block being connected to the air cylinder, the first clamp block being attached to or detached from the second clamp block under the telescopic action of the air cylinder.

7. The tensioning mechanism of claim 6, wherein the clamp further comprises a second rack, a third rack, a second gear and a mounting housing, two ends of the second rack are respectively connected with the first clamping block and the air cylinder, two ends of the third rack are respectively connected with the second clamping block and the mounting housing, the second rack and the third rack are both inserted into the mounting housing, the mounting housing is in sliding connection with the workbench, the second gear is rotatably arranged on the mounting housing, and the second rack and the third rack are both in meshed connection with the second gear and are respectively positioned on two opposite sides of the second gear.

8. The tightening mechanism according to claim 7, wherein a slide rail is provided at a bottom side of the table, and a slider is provided at a bottom of the mounting housing, the slider being in sliding engagement with the slide rail.

9. A tightening mechanism according to any one of claims 1 to 5, wherein the driving member is a rotating electric machine.

10. A closure line comprising a tensioning mechanism as claimed in any one of claims 1 to 9.