CN110817788A

CN110817788A - Bagged spring core production equipment and method

Info

Publication number: CN110817788A
Application number: CN201911126305.6A
Authority: CN
Inventors: 叶如剑
Original assignee: Zhejiang Huajian Intelligent Equipment Co Ltd
Current assignee: Zhejiang Huajian Intelligent Equipment Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-02-21

Abstract

The invention discloses a bagged spring core production device and a method, and the bagged spring core production method comprises the following steps: conveying the first string of pocketed springs from a first conveying position to a first pushing position along a first conveying direction; conveying a second string of pocketed springs from a second conveying position to a second pushing position in a second conveying direction parallel to the first conveying direction, the second pushing position and the first pushing position being arranged side-by-side in a pushing direction orthogonal to the first conveying direction and the second conveying direction; and simultaneously pushing the second bagged spring string and the first bagged spring string to an assembly area along the pushing direction to manufacture a bagged spring core. The production method of the invention has high efficiency of producing the bagged spring core body.

Description

Bagged spring core production equipment and method

Technical Field

The invention relates to the technical field of spring manufacturing, in particular to bagged spring core body production equipment and a bagged spring core body production method.

Background

Pocketed springs are widely used in the production of spring cores for mattresses and sofas, the pocketed spring core comprising a plurality of springs, each located in a pocket chamber of the spring pocket spaced apart from each other. In the production of the pocket spring core body, continuous pocket spring strips are cut into pocket spring strings with preset lengths, then the pocket spring strings are sequentially conveyed by a conveyor and pushed onto a core body conveying mechanism from the conveyor by a pushing mechanism, and the pocket spring strips pushed onto the core body conveying mechanism are bonded or welded, so that the pocket spring core body is formed.

However, the production efficiency of the existing production equipment for the bagged spring core body is not high, so that the application of the production equipment is limited.

Disclosure of Invention

Therefore, the invention provides a production method of the bagged spring core body, which can improve the production efficiency of the bagged spring core body.

The invention also provides bagged spring core body production equipment.

A pocket spring core production method according to an embodiment of the first aspect of the invention comprises: conveying the first string of pocketed springs from a first conveying position to a first pushing position along a first conveying direction; conveying a second string of pocketed springs from a second conveying position to a second pushing position along a second conveying direction parallel to the first conveying direction, the second pushing position and the first pushing position being arranged side-by-side in a pushing direction orthogonal to the first conveying direction and the second conveying direction; and simultaneously pushing the second bagged spring string and the first bagged spring string to an assembly area along the pushing direction to manufacture a bagged spring core.

According to the production method of the bagged spring core body, the production efficiency of the bagged spring core body is improved by conveying the first bagged spring string to the first pushing position, conveying the second bagged spring string to the second pushing position and simultaneously pushing the first bagged spring string at the first pushing position and the second bagged spring string at the second pushing position to the assembling area.

In some embodiments, the pocket spring core production method further comprises: spraying glue to the first bagged spring string; and spraying glue to the second bagged spring in series.

In some embodiments, the pocket spring core production method further comprises: conveying a first pocket spring strip in said first conveying direction from a first supply position to said first conveying position; cutting said first pocketed spring strip into said first string of pocketed springs and sealing said first string of pocketed springs at a first sealing location, said first sealing location being between said first supply location and said first delivery location; conveying a second pocket spring strip in said second conveying direction from a second feeding position to said second conveying position; cutting said second pocketed spring strip into said second string of pocketed springs and sealing said second string of pocketed springs at a second sealing location, said second sealing location being located between said second supply location and said second delivery location.

In some embodiments, the pocket spring core production method further comprises: detecting the number of first springs in the first bagged spring strips which cross the first sealing position; detecting the number of second springs in the second pocket spring bars crossing the second sealing position.

In some embodiments, at least two of said first pocket spring strips are alternately transported in said first transport direction from a first feeding position to said first transport position; -conveying at least two of said second spring pocket strips alternately in said second conveying direction from said second feeding position to said second conveying position.

In some embodiments, each of the first and second pocketed spring bars comprises one spring bar or at least two spring bars, adjacent ones of the at least two spring bars being connected to each other.

In some embodiments, the pocket spring core production method further comprises: alternately conveying first and third pocketed spring string sections from a first supply location to the first conveying location to form the first pocketed spring string comprising only the first pocketed spring string section, the first pocketed spring string comprising only the third pocketed spring string section, or the first pocketed spring string comprising both the first and third pocketed spring string sections, respectively, at the first conveying location, wherein a first pocketed spring string section and a third pocketed spring string section in the first pocketed spring string are sealed together at a first sealing location between the first supply location and the first conveying location when the first pocketed spring string comprises both first and third pocketed spring string sections; alternately conveying second and fourth pocketed spring string sections from a second supply location to the second conveying location to form the second pocketed spring string comprising only the second pocketed spring string section, the second pocketed spring string comprising only the fourth pocketed spring string section, or the second pocketed spring string comprising both the second and fourth pocketed spring string sections, respectively, at the second conveying location, wherein a second pocketed spring string section and the fourth pocketed spring string section of the second pocketed spring string are seal welded together at a second seal weld location between the second supply location and the second conveying location when the second pocketed spring string comprises both second and fourth pocketed spring string sections.

In some embodiments, the first string of pocketed springs is obtained by cutting a first string of pocketed springs fed from the first feeding position at the first sealing position, the third string of pocketed springs is obtained by cutting a third string of pocketed springs fed from the first feeding position at the first sealing position, the second string of pocketed springs is obtained by cutting a second string of pocketed springs fed from the second feeding position at the second sealing position, the fourth string of pocketed springs is obtained by cutting a fourth string of pocketed springs fed from the second feeding position at the second sealing position,

the production method of the pocket spring core further comprises the following steps: sealing and welding the notches of the first bagged spring string section and the first bagged spring strip and the notches of the third bagged spring string section and the third bagged spring strip at the first sealing and welding position; and sealing and welding the notches of the second bagged spring string section and the second bagged spring strip and the notches of the fourth bagged spring string section and the fourth bagged spring strip at the second sealing and welding position.

In some embodiments, sealing the first pocketed spring string section and the cut of the first pocketed spring bar occurs simultaneously with cutting the first pocketed spring string section from the first pocketed spring bar; sealing and welding the third pocket spring string section and the cut of the third pocket spring strip and cutting the third pocket spring string section from the third pocket spring strip are simultaneously carried out; sealing and welding the second pocket spring string section and the cut of the second pocket spring strip and cutting the second pocket spring string section from the second pocket spring strip are carried out simultaneously; sealing and welding the fourth bagged spring string section and the cut of the fourth bagged spring strip and cutting the fourth bagged spring string section from the fourth bagged spring strip are carried out simultaneously.

In some embodiments, the pocket spring core production method further comprises: detecting the number of first springs in the first bagged spring strips which cross the first sealing position; detecting the number of second springs in a third bagged spring strip which passes through the first sealing position; detecting the number of second springs in the second pocket spring bars crossing the second sealing position; detecting the number of fourth springs in the fourth pocket spring strip which pass through the second sealing position.

In some embodiments, the transfer of the second string of pocketed springs from a second supply location to the second transfer location occurs simultaneously with the transfer of the first string of pocketed springs from the first supply location to the first transfer location, the transfer of the fourth string of pocketed springs from a second supply location to the second transfer location occurs simultaneously with the transfer of the third string of pocketed springs from the first supply location to the first transfer location, and the sealing together of a first string of pocketed springs and the third string of pocketed springs in the first string of pocketed springs occurs simultaneously with the sealing together of a second string of pocketed springs and the fourth string of pocketed springs in the second string of pocketed springs.

In some embodiments, the first string of pocketed springs comprises a first pocket and a plurality of first springs, the third string of pocketed springs comprises a third pocket and a plurality of third springs, the second string of pocketed springs comprises a second pocket and a plurality of second springs, the fourth string of pocketed springs comprises a fourth pocket and a plurality of fourth springs, the first springs are the same as or different from the third springs, the second springs are the same as or different from the fourth springs, and the first springs are the same as or different from the second springs.

In some embodiments, the first conveying direction and the second conveying direction are the same or opposite.

The pocket spring core production apparatus according to an embodiment of the second aspect of the present invention includes: the first conveying device conveys the first bagged spring string to a first pushing position along a first conveying direction; a second conveying device that conveys a second string of pocketed springs to a second pushing position in a second conveying direction parallel to the first conveying direction, the second pushing position and the first pushing position being arranged side by side in a pushing direction orthogonal to the first conveying direction and the second conveying direction; and the pushing device pushes the second bagged spring string and the first bagged spring string to an assembly table simultaneously along the pushing direction to manufacture a bagged spring core body.

According to the bagged spring core production equipment provided by the embodiment of the invention, the first bagged spring string is conveyed by the first conveying device, the second bagged spring string is conveyed by the second conveying device, and the first bagged spring string and the second bagged spring string are simultaneously pushed to the assembling table by the pushing device to form the bagged spring core, so that the production efficiency of the bagged spring core can be improved.

In some embodiments, the pocketed spring core production apparatus further comprises: the first glue spraying gun is used for spraying glue to the first bagged spring string; and the second glue spraying gun is used for spraying glue to the second bagged spring string.

In some embodiments, the first conveying device comprises a first feeder for feeding a first string of pocketed springs to the first conveyor, a first welder for cutting the first string of pocketed springs into the first string of pocketed springs and sealing the first string of pocketed springs, and a first conveyor for conveying the first string of pocketed springs to the first pushing location; the second conveying device comprises a second feeder, a second sealing device and a second conveyor, the second feeder is used for supplying second bagged spring strips to the second conveyor, the second sealing device is used for cutting the second bagged spring strips into second bagged spring strings and sealing and welding the second bagged spring strings, and the second conveyor is used for conveying the second bagged spring strings to the second pushing position.

In some embodiments, the first feeders are at least two, at least two of the first feeders alternately conveying the first pocket spring strips to the first conveyor; the second feeder is at least two, and the second feeders alternately convey the second pocket spring strips to the second conveyor.

In some embodiments, the first sealer comprises: a first cutting knife for cutting the first bagged spring strip into the first bagged spring string; the first sealing welding die head and the first sealing welding knife are used for sealing and welding the first bagged spring string; the first sealing driving assembly drives the first sealing die head and the first sealing welding knife to close and open; the second sealer includes: a second cutting knife for cutting the second pocketed spring strip into the second pocketed spring string; the second sealing welding die head and the second sealing welding knife are used for sealing and welding the second bagged spring string; and the second sealing driving assembly drives the second sealing die head and the second sealing welding knife to close and open.

In some embodiments, the first feeder comprises a first feed channel and a first sensor for detecting and determining the number of first springs within the first strip of pocketed springs, and the second feeder comprises a second feed channel and a second sensor for detecting and determining the number of second springs within the second strip of pocketed springs.

In some embodiments, the first string of pocketed springs comprises a first pocket of pockets and a plurality of first springs, the second string of pocketed springs comprises a second pocket of pockets and a plurality of second springs, and the first springs are the same or different from the second springs.

In some embodiments, the first conveyor includes a first feeder, a third feeder, a first sealer, and a first conveyor, the first feeder is used for supplying a first bagged spring strip, the third feeder is used for supplying a third bagged spring strip, the first feeder supplying the first pocket spring bars and the third feeder supplying the third pocket spring bars are alternately performed, the first sealing welder is used for cutting the first bagged spring strip into a first bagged spring string section and sealing and welding the first bagged spring string section, cutting the third bagged spring strip into a third bagged spring string section and sealing and welding the third bagged spring string section, and sealing and welding the first bagged spring string section and the third bagged spring string section into the first bagged spring string, the first conveyor is used for conveying the first pocket spring string to the first pushing position; the second conveying device comprises a second feeder, a fourth feeder, a second sealer and a second conveyor, the second feeder is used for supplying a second bagged spring strip, the fourth feeder is used for supplying a fourth bagged spring strip, the second feeder supplies the second pocket spring strip and the fourth feeder supplies the fourth pocket spring strip alternately, the second sealing welder is used for cutting the second bagged spring strip into a second bagged spring string section and sealing and welding the second bagged spring string section, cutting the fourth bagged spring strip into a fourth bagged spring string section and sealing and welding the fourth bagged spring string section, and sealing and welding the second bagged spring string section and the fourth bagged spring string section into the second bagged spring string, the second conveyor is for conveying the second string of pocketed springs to the second pushing position.

In some embodiments, the first feeder comprises a first feed channel and a first sensor for detecting and determining the number of first springs within the first pocketed spring bar, the third feeder comprises a third feed channel and a third sensor for detecting and determining the number of third springs within the third pocketed spring bar, the second feeder comprises a second feed channel and a second sensor for detecting and determining the number of second springs within the second pocketed spring bar, and the fourth feeder comprises a fourth feed channel and a fourth sensor for detecting and determining the number of fourth springs within the fourth pocketed spring bar.

In some embodiments, the first conveyor comprises a first transport member disposed downstream of the first sealer in the first conveying direction and a second transport member disposed downstream of the first transport member in the first conveying direction for receiving the first string of pocketed springs from the first transport member, the second transport member having a conveying speed different from a conveying speed of the first transport member; the second conveyor comprises a third conveying member and a fourth conveying member, the third conveying member is arranged at the downstream of the second welding device along the second conveying direction, the fourth conveying member is arranged at the downstream of the third conveying member along the second conveying direction and is used for receiving the second pocket spring string from the third conveying member, and the conveying speed of the fourth conveying member is different from that of the third conveying member.

The pocket spring core production apparatus according to an embodiment of the third aspect of the present invention includes: the conveying devices respectively convey the bagged spring strings to a plurality of corresponding pushing positions, and the pushing positions are arranged side by side along a first direction; the glue spraying guns are respectively used for correspondingly spraying glue to the bagged spring strings conveyed by the conveying devices; a pushing device that simultaneously pushes the string of pocketed springs conveyed to the plurality of pushing positions to an assembly station in the first direction to make a pocketed spring core.

Drawings

Fig. 1 is a schematic structural view of a pocket spring core production apparatus according to an embodiment of the present invention, in which pocket spring bars are located at a feeder.

Fig. 2 is a schematic view of the construction of the pocketed spring core producing apparatus shown in fig. 1, in which a string of pocketed springs is fed to a conveyor.

Fig. 3 is a schematic view of the construction of the pocketed spring core production apparatus shown in fig. 1, wherein strings of pocketed springs are transported to corresponding pushing positions.

Fig. 4 is a schematic structural view of the pocketed spring core production apparatus shown in fig. 1, wherein a pushing device pushes strings of pocketed springs in a plurality of pushing positions toward an assembly area.

Fig. 5 is a schematic structural view of the pocketed spring core production apparatus shown in fig. 1, wherein a pushing device pushes a plurality of strings of pocketed springs to an assembly area.

Fig. 6 is a schematic view of the construction of the pocketed spring core manufacturing apparatus shown in fig. 1, wherein the pushing means is reset.

Fig. 7 is a schematic view of a pocketed spring core produced by the pocketed spring core producing apparatus shown in fig. 1.

Fig. 8 and 9 are schematic structural views of a pocket spring core producing apparatus according to another embodiment of the present invention.

Fig. 10 is a schematic structural view of a pocket spring core producing apparatus according to still another embodiment of the present invention.

Fig. 11 is a schematic structural view of a pocket spring core producing apparatus according to still another embodiment of the present invention.

Fig. 12 and 13 are schematic structural views of a pocket spring core producing apparatus according to still another embodiment of the present invention.

Fig. 14 is a schematic view of a string of pocketed springs produced by the pocketed spring core producing apparatus shown in fig. 12 and 13.

Fig. 15 is a schematic view of a pocketed spring core produced by the pocketed spring core producing apparatus shown in fig. 12 and 13.

Fig. 16 is a schematic structural view of a pocket spring core manufacturing apparatus according to still another embodiment of the present invention.

Fig. 17 is a schematic view of a pocketed spring bar according to an embodiment of the invention.

Fig. 18 is a schematic view of a pocketed spring bar according to another embodiment of the invention.

Reference numerals:

the pocket spring core production apparatus 100, the first conveying device 11, the first feeder 111, the first feed channel 1111, the first sensor 1112, the first sealer 112, the first conveyor 113, the first conveying member 1131, the second conveying member 1132, the third feeder 114, the third feed channel 1141, the third sensor 1142, the second conveying device 12, the second feeder 121, the second feed channel 1211, the second sensor 1212, the second sealer 122, the second conveyor 123, the third conveying member 1231, the fourth conveying member 1232, the fourth feeder 124, the fourth feed channel 1241, the fourth sensor 1242, the pushing device 13, the first glue gun 15, the second glue gun 16, the receiving plate 17, the first plate 171, the second plate 172,

a bagged spring core 200, a first bagged spring string 2011, a second bagged spring string 2012, a first bagged spring strip 21, a first bagged spring string section 211, a second bagged spring strip 22, a second bagged spring string section 221, a third bagged spring strip 23, a third bagged spring string section 231, a fourth bagged spring strip 24, and a fourth bagged spring string section 241.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.

As shown in fig. 1 to 18, a method of producing a pocket spring core according to an embodiment of the present invention includes:

the first string of pocketed springs 2011 is transported in a first transport direction from a first transport position to a first pushing position, as shown in fig. 1-6, 8-13, 16, the first transport position being to the right of the first pushing position, and the first string of pocketed springs 2011 is transported in a right-to-left direction from the first transport position to the first pushing position.

Conveying the second string 2012 of pocketed springs from the second conveying position to the second pushing position along a second conveying direction parallel to the first conveying direction, specifically, the second conveying direction may be the same as the first conveying direction, as shown in fig. 1-6, 8, 9, 12, and 13, and both the first conveying direction and the second conveying direction are from right to left; the second conveying direction may also be opposite to the first conveying direction, as shown in fig. 10, 11, 16, the first conveying direction being from right to left and the second conveying direction being from left to right. Wherein the second pushing position and the first pushing position are arranged side by side in a pushing direction orthogonal to the first conveying direction and the second conveying direction, as shown in fig. 1-6, 8-13, 16, the pushing direction being from the rear to the front, and the second pushing position and the first pushing position are arranged at a distance and opposite in the rear to the front, wherein the first pushing position is located in front of the second pushing position.

The second pocketed spring string 2012 and the first pocketed spring string 2011 are simultaneously pushed to the assembly area along the pushing direction to make the pocketed spring core 200. As shown in fig. 3 and 4, when the first string 2011 is located at the first pushing position and the second string 2012 is located at the second pushing position, the second string 2012 is pushed forward first until the second string 2012 contacts the first string 2011, and the second string 2012 continues to be pushed forward, so that the first string 2011 is pushed to the assembly area along with the second string 2012 under the pushing of the second string 2012.

According to the pocket spring core production method provided by the embodiment of the invention, the production efficiency of the pocket spring core 200 is improved by conveying the first pocket spring string 2011 to the first pushing position, conveying the second pocket spring string 2012 to the second pushing position, and simultaneously pushing the first pocket spring string 2011 at the first pushing position and the second pocket spring string 2012 at the second pushing position to the assembling area.

In some embodiments, the pocket spring core production method further comprises: spraying glue to the first bagged spring string 2011; glue is sprayed to the second string 2012 of pocketed springs.

The glue can be sprayed to the first bagged spring string 2011 when the first bagged spring string 2011 is located at the first pushing position, or the glue can be sprayed to the first bagged spring string 2011 before the first bagged spring string 2011 reaches the first pushing position. Similarly, glue may be sprayed to the second string 2012 of pocketed springs when the second string 2012 of pocketed springs is at the second pushing position, or glue may be sprayed to the second string 2012 of pocketed springs before the second string 2012 of pocketed springs reaches the second pushing position.

As shown in fig. 3 and 4, when the first string of pocketed springs 2011 is in the first pushing position, glue is sprayed to the first string of pocketed springs 2011; before the second string 2012 of pocketed springs reaches the second pushing position, glue is sprayed to the second string 2012 of pocketed springs.

In some optional embodiments, the pocket spring core production method further comprises:

conveying the first pocket spring strips 21 in a first conveying direction from the first feeding position to a first conveying position, which is located on the right side of the first conveying position as shown in fig. 1-6 and 8-11, and conveying the first pocket spring strips 21 in a right-to-left direction from the first feeding position to the first conveying position;

cutting the first pocketed spring bar 21 into a first pocketed spring string 2011 at a first sealing position and sealing the first pocketed spring string 2011, in other words, cutting the first pocketed spring bar 21 to form a plurality of first pocketed spring strings 2011 at the first sealing position, and sealing the notches of the first pocketed spring strings 2011, wherein the first sealing position is located between a first supply position and a first conveying position, as shown in fig. 1-6, 8-11, the first sealing position is located at the left side of the first supply position and located at the right side of the first conveying position;

conveying the second string of pocketed springs 22 in a second conveying direction from the second feeding position to a second conveying position, the second feeding position being to the right of the second conveying position as shown in fig. 1-6, 8 and 9, conveying the first string of pocketed springs 2011 in a right-to-left direction from the second feeding position to the second conveying position, or, the second feeding position being to the left of the second conveying device as shown in fig. 10 and 11, conveying the first string of pocketed springs 2011 in a left-to-right direction from the second feeding position to the second conveying position;

the second pocketed spring strips 22 are cut into second strings 2012 of pocketed springs and the second strings 2012 are sealed at a second sealing position, in other words, the second pocketed spring strips 22 are cut to make a plurality of second strings 2012 of pocketed springs at a second sealing position, and the cuts of the second strings 2012 of pocketed springs are sealed, wherein the second sealing position is located between the second feeding position and the second conveying position, as shown in fig. 1-6, 8 and 9, the second sealing position is located at the left side of the second feeding position and at the right side of the second conveying position, or as shown in fig. 10 and 11, the second sealing position is located at the right side of the second feeding position and at the left side of the second conveying position.

In some embodiments, the pocket spring core production method further comprises:

detecting the number of the first springs in the first pocketed spring strip 21 passing through the first sealing position, so as to cut a first string 2011 of pocketed springs of a predetermined length from the first pocketed spring strip 21;

the number of second springs in the second pocketed spring strip 22 that pass the second sealing location is detected to cut a predetermined length of the second string 2012 of pocketed springs from the second pocketed spring strip 22.

In some specific embodiments, at least two first pocket spring bars 21 are alternately conveyed in a first conveying direction from a first feeding position to a first conveying position; at least two second pocket spring strips 22 are alternately transported in a second transport direction from a second feeding position to a second transport position.

As shown in fig. 8, 9 and 11, the two first pocket spring bars 21 are alternately located at the first feeding position to be alternately conveyed to the first conveying position; the two second pocket spring bars 22 are alternately located at the second feeding position to be alternately transferred to the second transfer position.

Therefore, when one first bagged spring strip 21 is used up, the other first bagged spring strip 21 can be timely moved to the first supply position to be conveyed to the first conveying position; similarly, when one second pocket spring strip 22 is used up, the other second pocket spring strip 22 can be timely moved to the second supply position to be conveyed to the second conveying position, so that the supply of the pocket spring strips can be ensured, and the production efficiency of the pocket spring core bodies is further improved.

In the above embodiment, the first pocketed spring bar 21 and the second pocketed spring bar 22 may be one spring bar, respectively, as shown in fig. 1 to 6, and 7 to 11; it is also possible to have at least two spring rails connected to each other, i.e. a plurality of spring rails connected together beforehand, as shown in fig. 17 and 18, respectively. And adjacent spring strips in the at least two spring strips are welded or bonded together, and the welding mode can be ultrasonic welding or electric heating wire welding and the like. It can be understood that the production efficiency of the pocket spring core can be further improved by adopting at least two spring strips which are connected in advance for the first pocket spring strip 21 and/or the second pocket spring strip 22.

In other alternative embodiments, as shown in fig. 12-16, the pocket spring core production method further comprises:

the first and third pocketed spring string sections 211, 231 are alternately transported from the first supply location to the first transport location to form, at the first transport location, a first pocketed spring string 2011 comprising only the first pocketed spring string section 211, a first pocketed spring string 2011 comprising only the third pocketed spring string section 231, or a first pocketed spring string 2011 comprising both the first and third pocketed spring string sections 211, 231, respectively, in other words, the first pocketed spring string 2011 may comprise only the first pocketed spring string section 211, may also comprise only the third pocketed spring string section 231, may also comprise the first and third pocketed spring string sections 211, 231,

wherein when the first string 2011 includes both the first string 211 and the third string 231 sections, the first string 211 and the third string 231 sections of the first string 2011 are sealed together at a first sealing location between the first feeding location and the first feeding location;

the second and fourth pocketed spring string sections 221, 241 are alternately transported from the second supply location to the second transport location to form at the second transport location a second pocketed spring string 2012 comprising only the second pocketed spring string section 221, a second pocketed spring string 2012 comprising only the fourth pocketed spring string section 241, or a second pocketed spring string 2012 comprising both the second and fourth pocketed spring string sections 221, 241, respectively, in other words, the second pocketed spring string 2012 may comprise only the second pocketed spring string section 221, only the fourth pocketed spring string section 241, both the second and fourth pocketed spring string sections 221, 241.

Wherein when the second string 2012 of pocketed springs includes both the second string section 221 and the fourth string section 241 of pocketed springs, the second string section 221 of pocketed springs and the fourth string section 241 of pocketed springs in the second string 2012 of pocketed springs are sealed together at a second sealing location between the second feeding location and the second conveying location.

In some embodiments, the first string 211 of pocketed springs is obtained by cutting the first pocketed spring strip 21 fed from the first feeding position at the first sealing position, the third string 231 of pocketed springs is obtained by cutting the third pocketed spring strip 23 fed from the first feeding position at the first sealing position, the second string 221 of pocketed springs is obtained by cutting the second pocketed spring strip 22 fed from the second feeding position at the second sealing position, and the fourth string 241 of pocketed springs is obtained by cutting the fourth pocketed spring strip 24 fed from the second feeding position at the second sealing position.

The method for producing the pocket spring core further comprises the following steps:

sealing and welding the notches of the first bagged spring string section 211 and the first bagged spring strip 21 and the notches of the third bagged spring string section 231 and the third bagged spring strip 23 at the first sealing and welding position;

and sealing and welding the notches of the second bagged spring string section 221 and the second bagged spring strip 22 and the notches of the fourth bagged spring string section 241 and the fourth bagged spring strip 24 at a second sealing and welding position.

In some embodiments, the sealing of the first pocketed spring string section 211 and the cutting of the first pocketed spring bar 21 is performed simultaneously with the cutting of the first pocketed spring string section 211 from the first pocketed spring bar 21.

The sealing of the third pocketed spring string section 231 and the cut of the third pocketed spring bar 23 is performed simultaneously with the cutting of the third pocketed spring string section 231 from the third pocketed spring bar 23.

The sealing of the second pocketed spring string section 221 and the cut of the second pocketed spring bar 22 is performed simultaneously with the cutting of the second pocketed spring string section 221 from the second pocketed spring bar 22.

Sealing the fourth pocketed spring string section 241 and the cut of the fourth pocketed spring bar 24 is performed simultaneously with cutting the fourth pocketed spring string section 241 from the fourth pocketed spring bar 24.

detecting the number of the first springs in the first pocketed spring strip 21 passing through the first sealing position, so as to cut a first pocketed spring string section 211 of a predetermined length from the first pocketed spring strip 21;

detecting the number of second springs in the third pocketed spring strip 23 passing the first sealing position, so as to cut a third pocketed spring string section 231 of a predetermined length from the third pocketed spring strip 23;

detecting the number of second springs in the second pocket spring strip 22 passing through the second sealing position so as to cut a second pocket spring string section 221 with a predetermined length from the second pocket spring strip 22;

the number of the fourth springs in the fourth pocketed spring strip 24 passing the second sealing position is detected so that a predetermined length of the fourth pocketed spring string 241 is cut from the fourth pocketed spring strip 24.

In some embodiments, the transfer of the second pocketed spring string section 221 from the second supply location to the second transfer location occurs simultaneously with the transfer of the first pocketed spring string section 211 from the first supply location to the first transfer location.

The transfer of the fourth pocketed spring string section 241 from the second supply position to the second transfer position is performed simultaneously with the transfer of the third pocketed spring string section 231 from the first supply position to the first transfer position.

In some particular embodiments, the sealing together of the first and third pocketed spring string sections 211, 231 in the first pocketed spring string 2011 is simultaneous with the sealing together of the second and fourth pocketed spring string sections 221, 241 in the second pocketed spring string 2012.

In some specific embodiments, the first string of pocketed springs 211 comprises a first pocket and a plurality of first springs, the third string of pocketed springs 231 comprises a third pocket and a plurality of third springs, the second string of pocketed springs 221 comprises a second pocket and a plurality of second springs, and the fourth string of pocketed springs 241 comprises a fourth pocket and a plurality of fourth springs, the first springs being the same as or different from the third springs, the second springs being the same as or different from the fourth springs, the first springs being the same as or different from the second springs.

Specifically, the first spring and the second spring are the same, the third spring and the fourth spring are the same, and the first spring and the third spring are different, that is, the second spring and the fourth spring are different. Thus, the springs in each string 201 of pocketed spring cores 200 are identical; when the first spring is different from the second spring, at least two kinds of pocketed spring strings 201 are provided in the pocketed spring core 200, and the springs in the two kinds of pocketed spring strings 201 are different.

Here, the springs may be the same or different, may have the same or different stiffness, may have the same or different type of spring, and may have the same or different shape and structure.

A pocket spring core producing apparatus according to an embodiment of the present invention will be described with reference to fig. 1 to 16.

As shown in fig. 1 to 16, a pocket spring core producing apparatus 100 according to an embodiment of the present invention includes a first conveyor 11, a second conveyor 12, and a pushing device 13.

The first conveyor 11 conveys the first string of pocketed springs 2011 in a first conveying direction to a first pushing position. 1-6, 8-13, and 16, the first conveying direction is a right-to-left direction, and the first conveyor 11 conveys the first string 2011 of pocketed springs from right to left to the first pushing position.

The second conveyor 12 conveys the second string 2012 of pocketed springs in a second conveying direction to a second pushing position. In particular, the second conveying direction is parallel to the first conveying direction. Further, the second conveying direction may be the same as the first conveying direction, as shown in fig. 1-6, 8, 9, 12, 13, both the first conveying direction and the second conveying direction being from right to left; the second conveying direction may also be opposite to the first conveying direction, as shown in fig. 10, 11, 16, the first conveying direction being from right to left and the second conveying direction being from left to right.

The second pushing position and the first pushing position are arranged side by side in a pushing direction, and the pushing direction is orthogonal to the first conveying direction and the second conveying direction. As shown in fig. 1 to 6, 8 to 13, and 16, the pushing direction is a direction from the rear to the front, and the second pushing position and the first pushing position are spaced and arranged opposite to each other in the direction from the rear to the front, wherein the first pushing position is located forward of the second pushing position.

The pushing device 13 simultaneously pushes the second string 2012 of pocketed springs and the first string 2011 of pocketed springs in a pushing direction to the assembly station 14 to make the pocketed spring cores 200. It should be noted here that the second string 2012 of pocketed springs and the first string 2011 are pushed simultaneously, that is, the pushing device 13 pushes the second string 2012 of pocketed springs in the pushing direction until the second string 2012 of pocketed springs contacts the first string 2011, and the pushing device 13 continues to push the contacted second string 2012 of pocketed springs and the contacted first string 2011 of pocketed springs to the assembling station 14 in the pushing direction to form the pocketed spring core 200.

As shown in fig. 1-6, 8-13 and 16, when the first string 2011 is located at the first pushing position and the second string 2012 is located at the second pushing position, the pushing device 13 pushes the second string 2012 in the backward-forward direction until the second string 2012 contacts the first string 2011, the pushing device 13 continues to push the second string 2012 forward, and the first string 2011 is pushed to the assembling station 14 along with the second string 2012 under the pushing of the second string 2012. It will be appreciated that the pushing means 13 may also be moved in a direction opposite to the pushing direction for resetting.

According to the pocket spring core production equipment 100 provided by the embodiment of the invention, the first conveying device 11 conveys the first pocket spring string 2011, the second conveying device 12 conveys the second pocket spring string 2012, and the pushing device 13 simultaneously pushes the first pocket spring string 2011 and the second pocket spring string 2012 to the assembling table 14 to form the pocket spring core 200, so that the production efficiency of the pocket spring core 200 can be improved.

In some embodiments, the pocketed spring core production apparatus 100 further includes a first glue gun 15 and a second glue gun 16, the first glue gun 15 being used to spray glue to the first string 2011 of pocketed springs. The second glue gun 16 is used for spraying glue to the second string 2012 of pocketed springs.

The first glue gun 15 may spray glue to the first bagged spring string 2011 when the first bagged spring string 2011 is located at the first pushing position, or may spray glue to the first bagged spring string 2011 before the first bagged spring string 2011 reaches the first pushing position. Similarly, the second glue spraying gun 16 may spray glue onto the second string 2012 of pocketed springs when the second string 2012 of pocketed springs is at the second pushing position, or may spray glue onto the second string 2012 of pocketed springs before the second string 2012 of pocketed springs reaches the second pushing position.

As shown in fig. 1-6, 8-13, and 16, the first glue gun 15 sprays glue to the first string 2011 when the first string 2011 is located at the first pushing position, and the second glue gun 16 sprays glue to the second string 2012 before the second string 2012 reaches the second pushing position.

It is to be understood that the first string 2011 and the second string 2012 are connected by bonding, and the present invention is not limited thereto, for example, the first string 2011 and the second string 2012 may be welded together.

In some alternative embodiments, as shown in fig. 1-6 and 8-11, the first conveyor 11 includes a first feeder 111, a first sealer 112, and a first conveyor 113. The first feeder 111 is used to supply the first pocket spring bars 21 to the first conveyor 113. As shown in fig. 1-6 and 8-11, the first feeder 111 may feed the first pocket spring bars 21 to the first conveyor 113 in a right-to-left direction.

The first sealer 112 is used to cut the first pocketed spring bar 21 into a first string 2011 of pocketed springs and to seal the first string 2011 of pocketed springs. As shown in fig. 2, the first welder 112 may cut the first pocketed spring strip 21 to make a plurality of first strings 2011 of pocketed springs from the first pocketed spring strip 21, and may weld the cuts of the first strings 2011 of pocketed springs.

The first conveyor 113 is used to convey the first string of pocketed springs 2011 to a first pushing position. As shown in fig. 1-6 and 8-11, the first conveyor 113 may convey the first string of pocketed springs 2011 in a right-to-left direction to a first pushing position.

The second conveying device 12 includes a second feeder 121, a second sealer 122, and a second conveyor 123. The second feeder 121 is used to feed the second pocket spring bars 22 to the second conveyor 123. As shown in fig. 1 to 6, 8 and 9, the first conveyor 113 and the second conveyor 123 are spaced and arranged opposite to each other in the front-rear direction, the first feeder 111 and the second feeder 121 are spaced and arranged opposite to each other in the front-rear direction, and the second feeder 121 may supply the second pocket spring strip 21 to the second conveyor 123 in the direction from right to left, or, as shown in fig. 10 and 11, the first feeder 111 and the second feeder 121 are spaced in the left-right direction, and the first feeder 111 is on the right, the second feeder 121 is on the left, and the second feeder 121 may supply the second pocket spring strip 21 to the second conveyor 123 in the direction from left to right.

The second sealer 122 is used to cut the second pocketed spring strip 22 into a second string 2012 of pocketed springs and to seal the second string 2012 of pocketed springs. As shown in fig. 2, the second sealer 122 may cut the second pocketed spring bar 22 to make the second pocketed spring bar 22 into a plurality of second strings 2012 of pocketed springs, and may seal the cut-outs of the second strings 2012 of pocketed springs.

The second conveyor 123 is for conveying the second string 2012 of pocketed springs to a second pushing position. As shown in fig. 1-6, 8 and 9, the second conveyor 123 may convey the second string 2012 of pocketed springs in a right-to-left direction to the second pushing position, or as shown in fig. 10 and 11, the second conveyor 123 may convey the second string 2012 of pocketed springs in a left-to-right direction to the second pushing position.

In some embodiments, the first feeders 111 are at least two, and the at least two first feeders 111 alternately feed the first pocket spring bars 21 to the first conveyor 113. The second feeders 121 are at least two, and the at least two second feeders 121 alternately feed the second pocket spring bars 22 to the second conveyor 123.

As shown in fig. 8, 9 and 11, the two first feeders 111 are alternately located at the first feeding position to alternately feed the first pocket spring bars 21 to the first conveyor 113; the two second feeders 121 are alternately located at the second feeding position to alternately feed the second pocket spring bars 22 to the second conveyor 123.

In some embodiments, the first pocketed spring strip 21 on the first feeder 111 and the second pocketed spring strip 22 on the second feeder 121 may each be one spring strip, as shown in fig. 1-6, 7-11; it is also possible to have at least two spring rails connected to each other, i.e. a plurality of spring rails connected together beforehand, as shown in fig. 17 and 18, respectively. And adjacent spring strips in the at least two spring strips are welded or bonded together, and the welding mode can be ultrasonic welding or electric heating wire welding and the like. It can be understood that the production efficiency of the pocket spring core can be further improved by adopting at least two spring strips which are connected in advance for the first pocket spring strip 21 and/or the second pocket spring strip 22.

In some specific embodiments, the first sealer 112 includes a first cutting blade (not shown), a first sealing die head (not shown), a first sealing blade (not shown), and a first sealing drive assembly (not shown). The first cutting knife is used to cut the first pocketed spring bar 21 into a first string 2011 of pocketed springs.

The first sealing die head and the first sealing knife are used for sealing the first bagged spring string 2011. The first sealing driving assembly is used for driving the first sealing die head and the first sealing welding knife to close and open. In other words, the first sealing die head and the first sealing blade are arranged oppositely, and the first sealing driving assembly can drive the first sealing die head and the first sealing blade to be close to each other and to be far away from each other to be open. Wherein the first sealing welding die head and the first sealing welding knife can realize sealing welding when being closed.

The second sealing device 122 includes a second cutting blade, a second sealing die head, a second sealing welding blade, and a second sealing driving assembly. The second cutting blade is used to cut the second pocketed spring strip 22 into a second string 2012 of pocketed springs.

The second sealing die head and the second sealing welding knife are used for sealing welding the second bagged spring string 2012. The second sealing driving assembly drives the second sealing die head and the second sealing welding knife to close and open. In other words, the second sealing die head and the second sealing blade are arranged oppositely, and the second sealing driving assembly can drive the second sealing die head and the second sealing blade to be close to each other to be closed and to be far away from each other to be opened. Wherein the sealing can be realized when the second sealing die head and the second sealing welding knife are closed.

In some embodiments, first conveyor 113 includes a first transport 1131 and a second transport 1132, first transport 1131 being positioned downstream from first sealer 112 in the first conveyance direction. Second transport 1132 is provided downstream of first transport 1131 in the first conveying direction, and second transport 1132 is adapted to receive first string of pocketed springs 2011 from first transport 1131.

As shown in fig. 1-6, the first conveying direction is from right to left, first conveying member 1131 is located on the left side of first sealer 112, and second conveying member 1132 is located on the left side of first conveying member 1131. It is understood that the first pushing position is located at a position where at least a portion of the second conveying member 1132 is located.

Further, the conveying speed of second conveying member 1132 is different from the conveying speed of first conveying member 1131. In other words, second transport element 1132 has a speed difference with first transport element 1131, and first string 2011 of pocketed springs is compressed during transport from first transport element 1131 to second transport element 1132, so that the length of first string 2011 of pocketed springs meets the manufacturing requirements of pocketed spring core 200.

Second conveyor 123 comprises a third transport element 1231 and a fourth transport element 1232, third transport element 1231 being arranged downstream of second sealer 122 in the second conveying direction. A fourth transport element 1232 is arranged downstream of the third transport element 1231 in the second transport direction, the fourth transport element 1232 being adapted to receive the second string 2012 of pocketed springs from the third transport element 1231.

As shown in fig. 1 to 6, 8, and 9, the second conveying direction is a direction from right to left, that is, the same as the first conveying direction, third conveying member 1231 and first conveying member 1131 are spaced apart and arranged opposite to each other in the front-rear direction, and fourth conveying member 1232 and second conveying member 1132 are spaced apart and arranged opposite to each other in the front-rear direction. Third transport member 1231 is located on the left side of second sealer 122, and fourth transport member 1232 is located on the left side of third transport member 1231.

Alternatively, as shown in fig. 10 and 11, the second conveying direction is a direction from left to right, that is, opposite to the first conveying direction, and fourth conveying members 1232 and second conveying members 1132 are spaced in the front-rear direction and arranged oppositely, but third conveying members 1231 and first conveying members 1131 are spaced in the left-right direction. Third transport member 1231 is located on the right side of second sealer 122, and fourth transport member 1232 is located on the right side of third transport member 1231. Wherein it is understood that the second pushing position is the position in which at least part of fourth transport element 1232 is located.

Further, the conveying speed of fourth conveying member 1232 is different from the conveying speed of third conveying member 1231. In other words, there is a speed difference between fourth transport element 1232 and third transport element 1231, and second string 2012 of pocketed springs is compressed during transport from third transport element 1231 to fourth transport element 1232, so that the length of second string 2012 of pocketed springs meets the manufacturing requirements of pocketed spring cores 200. Specifically, the length of the second string 2012 of pocketed springs is equal to the length of the first string 2011 of pocketed springs.

In some specific embodiments, as shown in fig. 3, the first feeder 111 includes a first feed channel 1111 and a first sensor 1112, the first sensor 1112 being configured to detect and determine the number of first springs within the first strip 21 so as to cut a predetermined length of the first string 2011 of pocketed springs from the first strip 21.

The second feeder 121 includes a second feed channel 1211 and a second sensor 1212 for detecting and determining the number of second springs within the second strip 22 of pocketed springs so as to cut a predetermined length of the string 2012 of second pocketed springs from the second strip 22.

In some embodiments, the first string of pocketed springs 2011 comprises a first pocket and a plurality of first springs, and the second string of pocketed springs 2012 comprises a second pocket and a plurality of second springs, the first springs being the same as or different from the second springs.

The first spring is the same as the second spring, the springs in each string 201 of pocketed springs of the pocketed spring core 200 are the same; when the first spring is different from the second spring, at least two kinds of pocketed spring strings 201 are provided in the pocketed spring core 200, and the springs in the two kinds of pocketed spring strings 201 are different.

Here, the first spring and the second spring may be the same or different, the stiffness of the first spring may be the same as or different from the stiffness of the second spring, the types of the first spring and the second spring may be the same or different, the shapes and the structures of the first spring and the second spring may be the same or different, and the like.

In further alternative embodiments, as shown in fig. 12, 13 and 16, the first conveyor 11 comprises a first feeder 111, a third feeder 114, a first sealer 112 and a first conveyor 113. The first feeder 111 is used to feed the first pocket spring bars 21. The third feeder 114 serves to feed the third pocket spring bar 23. The first feeder 111 supplies the first pocket spring bars 21 and the third feeder 114 supplies the third pocket spring bars 23 alternately.

As shown in fig. 12, 13 and 16, the first feeder 111 may feed the first pocket spring bars 21 to the first conveyor 113 in a right-to-left direction. The third feeder 114 may feed the third pocket spring bars 23 to the first conveyor 113 in a right-to-left direction. The first feeder 111 and the third feeder 114 alternately feed the first conveyor 113.

The first sealing and welding device 112 is used for cutting the first pocketed spring strip 21 into a first pocketed spring string section 211 and sealing and welding the first pocketed spring string section 211, cutting the third pocketed spring strip 23 into a third pocketed spring string section 231 and sealing and welding the third pocketed spring string section 231, and sealing and welding the first pocketed spring string section 211 and the third pocketed spring string section 231 into a first pocketed spring string 2011.

As shown in fig. 12, 13 and 16, the first sealer 112 may cut the first pocketed spring strip 21 to form a plurality of first pocketed spring string sections 211 from the first pocketed spring strip 21, and may seal the cuts of the first pocketed spring string sections 211; the first sealing device 112 may also cut the third pocketed spring strip 23 to make the third pocketed spring strip 23 into a plurality of third pocketed spring string sections 231, and may seal the cuts of the third pocketed spring string sections 231; the first welder 112 may also weld the first pocketed spring string section 211 and the third pocketed spring string section 231 together to form a first pocketed spring string 2011.

It should be noted that in the first pocketed spring string 2011 including the first pocketed spring string section 211 and the third pocketed spring string section 231, the number of the first pocketed spring string sections 211 is not limited to 1, and the number of the third pocketed spring string sections 213 is not limited to 1.

The first conveyor 113 is used to convey the first string of pocketed springs 2011 to a first pushing position. As shown in fig. 12, 13, and 16, the first transporter 113 may transport the first string of pocketed springs 2011 in a right-to-left direction to the first push position.

The second conveying device 12 includes a second feeder 121, a fourth feeder 124, a second sealer 122, and a second conveyor 123. The second feeder 121 is used to feed the second pocket spring bars 22. The fourth feeder 124 is for feeding the fourth pocket spring bars 24. The second feeder 121 supplies the second pocket spring bars 22 and the fourth feeder 124 supplies the fourth pocket spring bars 24 alternately.

As shown in fig. 12 and 13, the first conveyor 113 and the second conveyor 123 are spaced and arranged opposite to each other in the front-rear direction, the first feeder 111 and the second feeder 121 are spaced and arranged opposite to each other in the front-rear direction, and the fourth feeder 124 and the third feeder 114 are spaced and arranged opposite to each other in the front-rear direction, wherein the second feeder 121 can feed the second pocket spring strip 21 to the second conveyor 123 in the right-to-left direction, the fourth feeder 124 can feed the fourth pocket spring strip 24 to the second conveyor 123 in the right-to-left direction, and the second feeder 121 and the fourth feeder 124 alternately feed the second conveyor 123. Alternatively, as shown in fig. 16, the first feeder 111 and the second feeder 121 are spaced apart in the left-right direction, the fourth feeder 124 and the third feeder 114 are spaced apart in the left-right direction, wherein the second feeder 121 may supply the second pocket spring bars 21 to the second conveyor 123 in the left-right direction, the fourth feeder 124 may supply the fourth pocket spring bars 24 to the second conveyor 123 in the left-right direction, and the second feeder 121 and the fourth feeder 124 alternately supply the second conveyor 123.

The second sealing and welding device 122 is configured to cut the second bagged spring strip 22 into a second bagged spring string section and seal and weld the second bagged spring string section, cut the fourth bagged spring strip 24 into a fourth bagged spring string section 241 and seal and weld the fourth bagged spring string section 241, and seal and weld the second bagged spring string section and the fourth bagged spring string section 241 into a second bagged spring string 2012.

As shown in fig. 12, 13 and 16, the second sealer 122 may cut the second pocketed spring strip 22 to form a plurality of second pocketed spring string sections 221 from the second pocketed spring strip 22, and may seal the cuts of the second pocketed spring string sections 221; the second sealing device 122 may also cut the fourth pocketed spring strip 24 to make the fourth pocketed spring strip 24 into a plurality of fourth pocketed spring string sections 241, and may seal the cuts of the fourth pocketed spring string sections 241; the second welder 122 may also weld the second and fourth pocketed spring string segments 221, 241 together to form a second pocketed spring string 2012.

It should be noted here that, in the second pocketed spring string 2012 including the second pocketed spring string section 221 and the fourth pocketed spring string section 241, the number of the second pocketed spring string section 221 may not be limited to 1, and the number of the fourth pocketed spring string section 241 may not be limited to 1.

The second conveyor 123 is for conveying the second string 2012 of pocketed springs to a second pushing position. The second conveyor 123 may convey the second string 2012 of pocketed springs in a right to left direction to a second pushing position, as shown in fig. 12 and 13, or the second conveyor 123 may convey the second string 2012 of pocketed springs in a right to left direction to a second pushing position, as shown in fig. 16.

In some specific embodiments, the first feeder 111 includes a first feed channel 1111 and a first sensor 1112, the first sensor 1112 being configured to detect and determine the number of first springs within the first pocketed spring strip 21 to cut a predetermined length of the first string 211 of pocketed springs from the first pocketed spring strip 21.

The third feeder 114 includes a third feed channel 1141 and a third sensor 1142, the third sensor 1142 being used to detect and determine the number of third springs in the third pocketed spring strip 23 so as to cut a predetermined length of the third string 231 of pocketed springs from the third pocketed spring strip 23.

The second feeder 121 includes a second feed channel 1211 and a second sensor 1212 for detecting and determining the number of second springs in the second strip 22 of pocketed springs so that a predetermined length of the second string 221 of pocketed springs is cut from the second strip 22.

The fourth feeder 124 includes a fourth feed passage 1241 and a fourth sensor 1242, the fourth sensor 1242 being adapted to detect and determine the number of fourth springs within the fourth pocketed spring strip 24 so as to cut a predetermined length of the fourth string 241 of pocketed springs from the fourth pocketed spring strip 24.

Further, the first spring is different from the third spring, the second spring is different from the fourth spring, the first spring is the same as the second spring, and the second spring is the same as the fourth spring. It is thereby possible to make the first and second strings of pocketed

springs

2011, 2012 identical, and the first and second strings of pocketed

springs

2011, 2012 each comprise different springs.

In some embodiments, a receiving plate 17 is provided between the first and second pushing positions and between the first pushing position and the mounting station 14. Specifically, the receiving plate 17 includes a first plate 171 and a second plate 172, and the first plate 171 is disposed between a first pushing position and a second pushing position, so that when the second string 2012 of pocketed springs is pushed to the first pushing position, the second string 2012 of pocketed springs is pushed to the first pushing position through the first plate 171 to contact the first string 2011 of pocketed springs. The second plate 172 is provided between the first pushing position and the mounting station 14 such that when the first string 2011 and the second string 2012 of pocketed springs are pushed together toward the mounting station 14, the first string 2011 and the second string 2012 of pocketed springs are pushed through the second plate 172 onto the mounting station 14.

The pocket spring core producing apparatus 100 according to an embodiment of the present invention includes a plurality of conveying devices, a plurality of glue guns, and a pushing device. The plurality of conveying devices respectively convey the plurality of pocketed spring strings 201 to a plurality of corresponding pushing positions, which are arranged side by side in a first direction. As shown in fig. 1 to 6, 8 to 13, and 16, the first direction is a backward-to-forward direction, and the plurality of pushing positions are spaced and arranged opposite to each other in the forward-to-backward direction.

The glue guns are used for spraying glue to the bagged spring strings 201 conveyed by the conveying devices correspondingly. In other words, each bagged spring string 201 corresponds to a glue spraying gun, and the glue spraying gun can spray glue to the bagged spring string.

The pusher 13 simultaneously pushes the string of pocketed springs 201 conveyed to the plurality of pushing positions in the first direction to the assembly station 14 to make the pocketed spring cores 200. In other words, the plurality of conveying devices respectively convey the corresponding string of pocketed springs 201 to the corresponding pushing positions, and the pushing device 13 simultaneously pushes the string of pocketed springs 201 located at the plurality of pushing positions to the assembling table 14 to make the pocketed spring cores 200.

As shown in fig. 1-6, 8-13 and 16, the plurality of pushing positions are spaced and arranged oppositely in the front-back direction, and the pushing direction is the direction from back to front, it should be noted that, the simultaneous pushing of the strings 201 of pocketed springs at the plurality of pushing positions is understood that the string 201 of pocketed springs at the rearmost side is pushed forward by the pushing device 13 first until the string 201 of pocketed springs contacts one string 201 of pocketed springs adjacent to the string 201 of pocketed springs, and the pushing device 13 continues to push forward, that is, the string 201 of pocketed springs at the rearmost side and the above one string 201 of pocketed springs are pushed forward by the pushing device 13, and so on, until the pushing device 13 makes the strings 201 of pocketed springs at all pushing positions contact together, and the pushing device 13 pushes the strings of pocketed springs 201 contacting together to the assembling station 14.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A method of producing a bagged spring core, comprising:

conveying the first string of pocketed springs from a first conveying position to a first pushing position along a first conveying direction;

conveying a second string of pocketed springs from a second conveying position to a second pushing position along a second conveying direction parallel to the first conveying direction, the second pushing position and the first pushing position being arranged side-by-side in a pushing direction orthogonal to the first conveying direction and the second conveying direction;

and simultaneously pushing the second bagged spring string and the first bagged spring string to an assembly area along the pushing direction to manufacture a bagged spring core.

2. The pocket spring core production method as set forth in claim 1, further comprising:

spraying glue to the first bagged spring string;

and spraying glue to the second bagged spring in series.

3. The pocket spring core production method as set forth in claim 1 or 2, further comprising:

conveying a first pocket spring strip in said first conveying direction from a first supply position to said first conveying position;

cutting said first pocketed spring strip into said first string of pocketed springs and sealing said first string of pocketed springs at a first sealing location, said first sealing location being between said first supply location and said first delivery location;

conveying a second pocket spring strip in said second conveying direction from a second feeding position to said second conveying position;

cutting said second pocketed spring strip into said second string of pocketed springs and sealing said second string of pocketed springs at a second sealing location, said second sealing location being located between said second supply location and said second delivery location.

4. The pocket spring core production method as set forth in claim 3, further comprising:

detecting the number of first springs in the first bagged spring strips which cross the first sealing position;

detecting the number of second springs in the second pocket spring bars crossing the second sealing position.

5. Method for producing pocket spring cores according to claim 3, wherein at least two of said first pocket spring strips are alternately transported in said first transport direction from a first feeding position to said first transport position; -conveying at least two of said second spring pocket strips alternately in said second conveying direction from said second feeding position to said second conveying position.

6. The pocket spring core production method according to claim 3, wherein each of said first and second pocket spring bars comprises one spring bar or at least two spring bars, adjacent spring bars of said at least two spring bars being connected to each other.

7. The pocket spring core production method as set forth in claim 1 or 2, further comprising: alternately conveying first and third pocketed spring string sections from a first supply location to the first conveying location to form the first pocketed spring string comprising only the first pocketed spring string section, the first pocketed spring string comprising only the third pocketed spring string section, or the first pocketed spring string comprising both the first and third pocketed spring string sections, respectively, at the first conveying location, wherein a first pocketed spring string section and a third pocketed spring string section in the first pocketed spring string are sealed together at a first sealing location between the first supply location and the first conveying location when the first pocketed spring string comprises both first and third pocketed spring string sections;

alternately conveying second and fourth pocketed spring string sections from a second supply location to the second conveying location to form the second pocketed spring string comprising only the second pocketed spring string section, the second pocketed spring string comprising only the fourth pocketed spring string section, or the second pocketed spring string comprising both the second and fourth pocketed spring string sections, respectively, at the second conveying location, wherein a second pocketed spring string section and the fourth pocketed spring string section of the second pocketed spring string are seal welded together at a second seal weld location between the second supply location and the second conveying location when the second pocketed spring string comprises both second and fourth pocketed spring string sections.

8. The pocket spring core production method as recited in claim 7, wherein the first pocket spring string section is obtained by cutting a first pocket spring strip fed from the first feeding position at the first sealing position, and the third pocket spring string section is obtained by cutting a third pocket spring strip fed from the first feeding position at the first sealing position,

the second string of pocketed springs is obtained by cutting a second pocketed spring strip supplied from the second supply position at the second sealing position, the fourth string of pocketed springs is obtained by cutting a fourth pocketed spring strip supplied from the second supply position at the second sealing position,

the production method of the pocket spring core further comprises the following steps: sealing and welding the notches of the first bagged spring string section and the first bagged spring strip and the notches of the third bagged spring string section and the third bagged spring strip at the first sealing and welding position;

and sealing and welding the notches of the second bagged spring string section and the second bagged spring strip and the notches of the fourth bagged spring string section and the fourth bagged spring strip at the second sealing and welding position.

9. The pocket spring core production method of claim 8, wherein sealing the first pocket spring string section and the cut of the first pocket spring bar is performed simultaneously with cutting the first pocket spring string section from the first pocket spring bar; sealing and welding the third pocket spring string section and the cut of the third pocket spring strip and cutting the third pocket spring string section from the third pocket spring strip are simultaneously carried out;

sealing and welding the second pocket spring string section and the cut of the second pocket spring strip and cutting the second pocket spring string section from the second pocket spring strip are carried out simultaneously; sealing and welding the fourth bagged spring string section and the cut of the fourth bagged spring strip and cutting the fourth bagged spring string section from the fourth bagged spring strip are carried out simultaneously.

10. The pocket spring core production method as set forth in claim 7, further comprising:

detecting the number of second springs in a third bagged spring strip which passes through the first sealing position;

detecting the number of second springs in the second pocket spring bars crossing the second sealing position;

detecting the number of fourth springs in the fourth pocket spring strip which pass through the second sealing position.

11. The pocket spring core production method of claim 7, wherein said transporting of said second pocket spring string section from a second supply location to said second transport location is performed simultaneously with said transporting of said first pocket spring string section from said first supply location to said first transport location, said transporting of said fourth pocket spring string section from a second supply location to said second transport location is performed simultaneously with said transporting of said third pocket spring string section from said first supply location to said first transport location, and said sealing together of said first pocket spring string section and said third pocket spring string section in said first pocket spring string is performed simultaneously with said sealing together of said second pocket spring string section and said fourth pocket spring string section in said second pocket spring string.

12. The method of producing pocketed spring cores of claim 7, wherein the first pocketed spring string section comprises a first pocket and a plurality of first springs, the third pocketed spring string section comprises a third pocket and a plurality of third springs,

the second bagged spring string section comprises a second cloth bag and a plurality of second springs, the fourth bagged spring string section comprises a fourth cloth bag and a plurality of fourth springs, the first springs are the same as or different from the third springs, the second springs are the same as or different from the fourth springs, and the first springs are the same as or different from the second springs.

13. Method for producing pocket spring cores according to any one of claims 1-12, wherein said first conveying direction and said second conveying direction are the same or opposite.

14. A bagged spring core production apparatus, comprising:

the first conveying device conveys the first bagged spring string to a first pushing position along a first conveying direction;

a second conveying device that conveys a second string of pocketed springs to a second pushing position in a second conveying direction parallel to the first conveying direction, the second pushing position and the first pushing position being arranged side by side in a pushing direction orthogonal to the first conveying direction and the second conveying direction;

and the pushing device pushes the second bagged spring string and the first bagged spring string to an assembly table simultaneously along the pushing direction to manufacture a bagged spring core body.

15. The pocketed spring core production apparatus of claim 14, further comprising:

the first glue spraying gun is used for spraying glue to the first bagged spring string;

and the second glue spraying gun is used for spraying glue to the second bagged spring string.

16. The pocketed spring core production apparatus of claim 14 or 15, wherein the first conveying device comprises a first feeder for supplying a first pocketed spring strip to the first conveyor, a first welder for cutting the first pocketed spring strip into the first string of pocketed springs and sealing the first string of pocketed springs, and a first conveyor for conveying the first string of pocketed springs to the first pushing position;

the second conveying device comprises a second feeder, a second sealing device and a second conveyor, the second feeder is used for supplying second bagged spring strips to the second conveyor, the second sealing device is used for cutting the second bagged spring strips into second bagged spring strings and sealing and welding the second bagged spring strings, and the second conveyor is used for conveying the second bagged spring strings to the second pushing position.

17. The pocket spring core production apparatus of claim 16, wherein said first feeders are at least two, at least two of said first feeders alternately feeding said first pocket spring strips to said first conveyor; the second feeder is at least two, and the second feeders alternately convey the second pocket spring strips to the second conveyor.

18. The pocketed spring core production apparatus of claim 16, wherein the first sealer comprises: a first cutting knife for cutting the first bagged spring strip into the first bagged spring string; the first sealing welding die head and the first sealing welding knife are used for sealing and welding the first bagged spring string; the first sealing driving assembly drives the first sealing die head and the first sealing welding knife to close and open;

the second sealer includes: a second cutting knife for cutting the second pocketed spring strip into the second pocketed spring string; the second sealing welding die head and the second sealing welding knife are used for sealing and welding the second bagged spring string; and the second sealing driving assembly drives the second sealing die head and the second sealing welding knife to close and open.

19. The pocketed spring core production apparatus of claim 16, wherein the first feeder comprises a first feed channel and a first sensor for detecting and determining the number of first springs within the first pocketed spring strip, and the second feeder comprises a second feed channel and a second sensor for detecting and determining the number of second springs within the second pocketed spring strip.

20. The pocketed spring core production apparatus of claim 14, wherein the first string of pocketed springs comprises a first pocket and a plurality of first springs, and the second string of pocketed springs comprises a second pocket and a plurality of second springs, the first springs being the same as or different from the second springs.

21. The pocketed spring core production apparatus of claim 14 or 15, wherein the first conveying device comprises a first feeder for supplying a first pocketed spring strip, a third feeder for supplying a third pocketed spring strip, and a first conveyor, the first feeder supplying the first pocketed spring strip and the third feeder supplying the third pocketed spring strip alternately, a first welder for cutting the first pocketed spring strip into first pocketed spring string sections and sealing the first pocketed spring string sections, cutting the third pocketed spring strip into third pocketed spring string sections and sealing the third pocketed spring string sections, and sealing the first pocketed spring string sections and the third pocketed spring string sections into the first pocketed spring string, the first conveyor is used for conveying the first pocket spring string to the first pushing position;

the second conveying device comprises a second feeder, a fourth feeder, a second sealer and a second conveyor, the second feeder is used for supplying a second bagged spring strip, the fourth feeder is used for supplying a fourth bagged spring strip, the second feeder supplies the second pocket spring strip and the fourth feeder supplies the fourth pocket spring strip alternately, the second sealing welder is used for cutting the second bagged spring strip into a second bagged spring string section and sealing and welding the second bagged spring string section, cutting the fourth bagged spring strip into a fourth bagged spring string section and sealing and welding the fourth bagged spring string section, and sealing and welding the second bagged spring string section and the fourth bagged spring string section into the second bagged spring string, the second conveyor is for conveying the second string of pocketed springs to the second pushing position.

22. The pocketed spring core production apparatus of claim 21, wherein the first feeder comprises a first feed channel and a first sensor for detecting and determining the number of first springs within the first pocketed spring bar, the third feeder comprises a third feed channel and a third sensor for detecting and determining the number of third springs within the third pocketed spring bar,

the second feeder includes a second feed channel and a second sensor for detecting and determining the number of second springs in the second pocketed spring strip, and the fourth feeder includes a fourth feed channel and a fourth sensor for detecting and determining the number of fourth springs in the fourth pocketed spring strip.

23. The pocketed spring core production apparatus of claim 16 or 21, wherein the first conveyor comprises a first transport member disposed downstream of the first sealing device in the first conveying direction and a second transport member disposed downstream of the first transport member in the first conveying direction for receiving the first string of pocketed springs from the first transport member, the second transport member having a conveying speed different from a conveying speed of the first transport member;

the second conveyor comprises a third conveying member and a fourth conveying member, the third conveying member is arranged at the downstream of the second welding device along the second conveying direction, the fourth conveying member is arranged at the downstream of the third conveying member along the second conveying direction and is used for receiving the second pocket spring string from the third conveying member, and the conveying speed of the fourth conveying member is different from that of the third conveying member.

24. The pocketed spring core production apparatus of claim 22, wherein the first pocketed spring string section comprises a first pocket and a plurality of first springs, the third pocketed spring string section comprises a third pocket and a plurality of third springs,

the second bagged spring string section comprises a second cloth bag and a plurality of second springs, the fourth bagged spring string section comprises a fourth cloth bag and a plurality of fourth springs,

the first spring is the same as or different from the third spring, the second spring is the same as or different from the fourth spring, and the first spring is the same as or different from the second spring.

25. Pocket spring core production apparatus according to any one of the claims 14-24, wherein the first conveying direction and the second conveying direction are the same or opposite.

26. A bagged spring core production apparatus, comprising:

the conveying devices respectively convey the bagged spring strings to a plurality of corresponding pushing positions, and the pushing positions are arranged side by side along a first direction;

the glue spraying guns are respectively used for correspondingly spraying glue to the bagged spring strings conveyed by the conveying devices;

a pushing device that simultaneously pushes the string of pocketed springs conveyed to the plurality of pushing positions to an assembly station in the first direction to make a pocketed spring core.