Spring-in-bag welding mechanism

Abstract

The utility model discloses a spring into bag welding mechanism, including conveying mechanism, cloth bag, welding mechanism, push spring rod group and limiting mechanism, when the welding mechanism clamps cloth bag between the spring in the output end of conveying mechanism and the spring outside the output end of conveying mechanism, the limiting mechanism releases cloth bag, when push spring rod pushes out the spring in cloth bag from the output end of conveying mechanism, the limiting mechanism clamps cloth bag and carries out the location to the spring, when the limiting mechanism clamps cloth bag and carries out the location to the spring, push spring rod can release cloth bag and displace along the first direction, the utility model discloses through setting openable and closeable limiting mechanism, make cloth bag can be clamped to the spring by limiting mechanism and carry out the location, effectively avoid cloth bag middle part not force condition, simultaneously through the cooperation of limiting mechanism and push spring rod, make the spring all be in the cloth bag location after leaving conveying mechanism and change, effectively guarantee the position accuracy of spring.

Description

Technical Field

[0001] This utility model relates to the field of bag spring production machinery technology, specifically to a spring bag welding mechanism. Background Technology

[0002] The production of pocket springs requires a pocket spring insertion and welding mechanism.

[0003] Existing bag spring welding mechanisms typically involve setting a clamping plate behind the welding mechanism, and then the welding mechanism moves back and forth and opens and closes synchronously with the clamping plate to pull the spring located at the end of the conveying mechanism out of the conveying mechanism, and then the welding mechanism welds the bag spring.

[0004] However, this method has the following problems: When the spring is pulled out of the conveying mechanism via the clamp and the welding mechanism and clamp are released at the same time, the spring is in a completely free state inside the bag. Since the weld is formed in front and the other side is completely free, the spring will obviously receive the deformation force of the non-woven fabric at the weld and rebound, or tilt and misalign under the combined action of the bag and gravity. This can easily cause the spring to shift inside the bag, causing the spring to enter the original welding position of the bag, thus producing scrap.

[0005] To address this issue, a bag-loading spring welding mechanism exists. This mechanism uses two fixed limiting rods at the output end of a conveyor to restrict the movement of the bag. The spring passes between the two limiting rods and exits the conveyor. However, this method has a problem: the bag between the limiting rods remains unrestricted. This can easily lead to a situation where the bag is restricted at both ends but free in the middle, causing the spring to be unable to fully release due to the deformation of the bag, resulting in defective products.

[0006] At the same time, when these methods pull the spring out from the output end of the conveying mechanism, a scraper must be provided. At this time, the avoidance of the limiting mechanism when the scraper is displaced must be taken into account, which makes the structure more complicated. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the present invention aims to provide a spring-loaded bag welding mechanism.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A spring-loaded bag welding mechanism includes a conveying mechanism, a cloth bag, a welding mechanism, a push spring rod assembly, and a limiting mechanism. The conveying mechanism is capable of clamping both ends of the spring in the second direction and conveying the spring in the first direction; The bag at least partially encloses the conveying mechanism so that the spring conveyed by the conveying mechanism enters the bag; The welding mechanism can open and close relative to each other to clamp the cloth bag and weld the bag to seal it to form a bag spring. The welding mechanism can move back and forth along the first direction. The spring pusher mechanism consists of at least one set of spring pusher rods. The spring pusher mechanism can open and close independently or synchronously with the welding mechanism. The spring pusher mechanism can move independently or synchronously with the welding mechanism along a first direction. Each set of spring pusher rods consists of two spring pusher rods arranged opposite each other along a third direction. The spring pusher rods are located on the outside of the bag. The spring pusher rods are used to cooperate with the conveying mechanism to output the spring from the conveying mechanism. A limiting mechanism, located at the output end of the conveying mechanism and capable of opening and closing independently, is used to clamp the bag between the spring located inside the output end of the conveying mechanism and the spring located outside the output end of the conveying mechanism to limit the spring. When the welding mechanism clamps the bag between the spring located inside the output end of the conveying mechanism and the spring located outside the output end of the conveying mechanism, the limiting mechanism releases the bag; when the push spring rod pushes the spring inside the bag out of the output end of the conveying mechanism, the limiting mechanism clamps the bag to limit the spring; when the limiting mechanism clamps the bag to limit the spring, the push spring rod can release the bag and move along the first direction.

[0009] Furthermore, the push spring mechanism and the welding mechanism open and close synchronously along a third direction and move synchronously along a first direction.

[0010] Furthermore, the push spring mechanism can open and close independently along a third direction and move independently along a first direction. When the limiting mechanism clamps the bag and limits the spring, the push spring mechanism opens and releases the bag along a third direction and moves along the first direction.

[0011] Furthermore, the limiting mechanism is at least one set of limiting plates located on the outside of the bag. Each set of limiting plates consists of two limiting plates arranged opposite each other along a third direction. The clamping plane of the two limiting plates is parallel to the welding surface of the welding mechanism.

[0012] Furthermore, the limiting plate is C-shaped, and the clamping position of the welding mechanism at least partially overlaps with the C-shaped clearance of the limiting plate.

[0013] Furthermore, the push spring mechanism includes two sets of push spring rods, which are arranged in parallel along a first direction, and the two sets of push spring rods can open and close synchronously along a third direction and move synchronously along the first direction.

[0014] Furthermore, the conveying mechanism is a clamping conveyor belt / conveyor chain arranged opposite each other along the second direction to clamp and convey the spring.

[0015] Furthermore, the welding mechanism includes a welding knife and a die, which can open and close relative to each other to clamp the cloth bag for welding.

[0016] Furthermore, it also includes a scraper, which opens and closes synchronously with the welding mechanism along a third direction and moves synchronously with the welding mechanism along a first direction. The scraper is used to cooperate with the conveying mechanism and the push spring mechanism to output the spring from the conveying mechanism.

[0017] Furthermore, it also includes a support mechanism for supporting the bag to form a bag opening shape, the support mechanism consisting of at least one support plate.

[0018] This utility model has the following beneficial effects: This utility model discloses a spring-feeding welding mechanism. By setting an openable limiting mechanism, the bag can be clamped by the limiting mechanism to limit the spring, effectively preventing the middle of the bag from being unloaded. At the same time, through the cooperation of the limiting mechanism and the push spring rod, the spring is kept in the deformed bag after leaving the conveying mechanism, effectively ensuring the accurate position of the spring. Secondly, the push rod can assist in outputting the spring from the conveying mechanism, eliminating the need for a scraper. This means that the limiting mechanism does not need to consider scraper displacement, making the machine structure simple. Attached Figure Description

[0019] Figure 1 This is a top view schematic diagram illustrating the principle of a spring-loaded bag welding mechanism according to this utility model; Figure 2 for Figure 1 A schematic side view of the principle of the sectional view; Figure 3 for Figure 2 Partial view A; Figure 4 This is a top view of one embodiment of the limiting plate of the spring bag welding mechanism of this utility model; Figure 5 This is a side view schematic diagram illustrating the principle of one embodiment of a spring-loaded bag welding mechanism according to the present invention. Figure 6 for Figure 5 A schematic diagram illustrating the principle that after the limiting mechanism clamps the cloth bag, the welding mechanism and the push spring mechanism simultaneously release the cloth bag. Figure 7 for Figure 5 A schematic diagram illustrating the principle that the welding mechanism and the push spring mechanism simultaneously release the cloth bag and then move to a designated position in the embodiment; Figure 8 for Figure 5 A schematic diagram illustrating the principle of synchronously clamping the cloth bag after the welding mechanism and the push spring mechanism are displaced to a designated position in the embodiment; Figure 9 This is a side view schematic diagram illustrating the principle of another embodiment of the spring-loaded bag welding mechanism of this utility model; Figure 10 for Figure 9 The embodiment is a schematic diagram illustrating the principle of the spring being output from the conveying mechanism by the displacement of the push spring mechanism and the welding mechanism along the first direction; Figure 11 for Figure 9 A schematic diagram illustrating the principle of the limiting mechanism clamping the cloth bag to limit the spring in the embodiment; Figure 12 for Figure 9 The embodiment shows a schematic diagram of the principle that the welding mechanism and the limiting mechanism hold the cloth bag together, and the spring feeding mechanism releases the cloth bag. Figure 13 for Figure 9 The embodiment is a schematic diagram of the principle that the limiting mechanism holds the cloth bag, the welding mechanism releases the cloth bag, and the spring feeding mechanism moves to the position where the spring is not pushed. Figure 14 for Figure 9 A schematic diagram illustrating the principle of the welding mechanism shifting to the welding position in the embodiment; Figure 15 for Figure 9 A schematic diagram illustrating the principle of the welding mechanism and the spring feeding mechanism clamping the cloth bag synchronously or asynchronously in the embodiment; Figure 16 for Figure 9 A schematic diagram illustrating the principle of the limiting mechanism releasing the cloth bag in the embodiment; Figure 17 This is a side view schematic diagram of the principle of a spring bag welding mechanism of the present invention when a scraper is set. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept claimed by the present invention.

[0021] like Figures 1-17 The present invention discloses a spring-loaded bag welding mechanism, which includes a conveying mechanism 1, a cloth bag 2, a welding mechanism 3, a push spring rod group 4, and a limiting mechanism 5. Conveying mechanism 1 is capable of clamping both ends of the spring in the second direction and conveying the spring in the first direction; The cloth bag 2 at least partially encloses the conveying mechanism 1 so that the spring conveyed by the conveying mechanism 1 enters the cloth bag; The welding mechanism 3 can open and close relative to each other to clamp the cloth bag and weld the cloth bag to seal it to form a bag spring. The welding mechanism 3 can move back and forth along the first direction. The spring push mechanism 4 is composed of at least one set of spring push rods. The spring push mechanism 4 can open and close independently or synchronously with the welding mechanism 3. The spring push mechanism 4 can move independently or synchronously with the welding mechanism 3 along a first direction. Each set of spring push rods is composed of two spring push rods 41 arranged opposite to each other along a third direction. The spring push rods 41 are located on the outside of the cloth bag 2. The spring push rods are used to cooperate with the conveying mechanism 1 to output the spring from the conveying mechanism 1. The limiting mechanism 5 is located at the output end of the conveying mechanism 1 and can be opened and closed independently. It is used to clamp the bag 2 between the spring located inside the output end of the conveying mechanism 1 and the spring located outside the output end of the conveying mechanism 1 to limit the spring. When the welding mechanism 3 clamps the bag 2 between the spring located inside the output end of the conveying mechanism and the spring located outside the output end of the conveying mechanism, the limiting mechanism 5 releases the bag; when the push spring rod 41 pushes the spring inside the bag out from the output end of the conveying mechanism 1, the limiting mechanism 5 clamps the bag to limit the spring, and during the displacement of the push spring mechanism 4 and the welding mechanism 1 along the first direction, the limiting mechanism 5 maintains the clamping state of the bag; when the limiting mechanism 5 clamps the bag 2 to limit the spring, the push spring rod 41 can release the bag and move along the first direction.

[0022] It should be noted that the first direction is the front-back direction, the second direction is the left-right direction, and the third direction is the up-down direction.

[0023] It should be noted that, along the first direction, the push spring mechanism 4 is located in front of the welding mechanism 3, and the limiting mechanism 5 is located between the welding mechanism 3 and the push spring mechanism 4.

[0024] In practical use, the springs are fed into the bags 2 one by one via the conveying mechanism 1. When the conveying mechanism 1 outputs the springs from the bags 2, the push spring rod 41 clamps the bag located outside the conveying mechanism 1 and compresses the springs in the bag 2 through deformation, thereby assisting the springs to leave the output end of the conveying mechanism 1 within the bag 2. After leaving the conveying mechanism 1, the springs, under the compressive force of the deformed bag 2, approach the weld seam formed by the previous bag spring. Then, the limiting mechanism 5 clamps the bag 2 to limit the springs (at this time, the push spring rod 41 can release the bag 2 and return to the position where the spring was not pushed). The cloth bag 2 is clamped, and then the welding mechanism 3 moves to the position of the cloth bag between the spring inside the output end of the conveying mechanism and the spring outside the output end of the conveying mechanism. Then the welding mechanism 3 clamps the cloth bag 2 for welding (it should be noted that the push spring rod 41 can clamp synchronously during this process, or the cloth bag 2 can be clamped in advance during the above action). Then the limiting mechanism 1 releases the cloth bag 2, and the welding mechanism 3 and the push spring rod 41 move synchronously along the first direction (at this time, the next spring is output from the output end of the conveying mechanism 1 through the cooperation of the push spring rod 41 and the conveying mechanism 1). This is repeated to produce a continuous bag spring string.

[0025] The advantages of this utility model are as follows: By setting an openable limiting mechanism, the bag can be clamped by the limiting mechanism to limit the spring, effectively avoiding the situation where the middle of the bag is not under force. At the same time, through the cooperation of the limiting mechanism and the push spring rod, the spring is limited in the deformed bag after leaving the conveying mechanism, effectively ensuring the accurate position of the spring. Secondly, the push rod can assist in outputting the spring from the conveying mechanism without the need for a scraper. This eliminates the need for the limiting mechanism to consider the avoidance of scraper displacement, making the machine structure simple.

[0026] Furthermore, the push spring mechanism 4 and the welding mechanism 3 open and close synchronously along the third direction and move synchronously along the first direction.

[0027] like Figures 5-8 The figure shown is one embodiment of the present invention. In this embodiment, the push spring mechanism 4 and the welding mechanism 3 open and close synchronously and move synchronously along the first direction.

[0028] At this time, the opening and closing drive of the welding mechanism 3 and the push spring mechanism 4 can be the same power source, and the displacement drive of the welding mechanism 3 and the push spring mechanism 4 can also be the same power source, thereby reducing the cost of the machine; at the same time, the synchronous movement of the welding mechanism 3 and the push spring mechanism 4 can reduce the difficulty of control and effectively avoid errors caused by complex actions during the production process.

[0029] Furthermore, the push spring mechanism 4 can open and close independently along a third direction and move independently along a first direction. When the limiting mechanism 5 clamps the cloth bag 2 to limit the spring, the push spring mechanism 4 opens and releases the cloth bag 2 along a third direction and moves along the first direction.

[0030] like Figures 9-16 The following is another embodiment of the present invention. In this embodiment, the push spring mechanism 4 moves independently.

[0031] Since welding mechanism 1 may not be able to complete the welding process when it is moved to the designated position, sometimes welding mechanism 1 needs to stay for a short period of time after the displacement action in the outer first direction to complete the welding process. At this time, the push spring mechanism 4 can move independently and release the cloth bag in advance and move to the designated position. When welding mechanism 1 completes welding, it can immediately release the cloth bag 2 and reset. At this time, the spring feeding mechanism can clamp the cloth bag 2 in advance without waiting for synchronous reset with the push spring mechanism 4, which can effectively improve efficiency.

[0032] Furthermore, the limiting mechanism 5 is at least one set of limiting plates located on the outside of the bag. Each set of limiting plates consists of two limiting plates 51 arranged opposite each other along a third direction. The clamping plane of the two limiting plates 51 is parallel to the welding surface of the welding mechanism 3.

[0033] More specifically, the clamping plane of the limiting plate 51 is parallel to the welding surface of the welding mechanism 3, and the clamping plane of the limiting plate 51 is misaligned with the welding surface of the welding mechanism 3, thereby preventing the welding mechanism 3 from misaligning and clamping the limiting plate 51 when clamping the cloth bag 2, which would cause damage.

[0034] Furthermore, the limiting plate 51 is C-shaped, and the clamping position of the welding mechanism 3 at least partially overlaps with the C-shaped clearance of the limiting plate.

[0035] More preferably, by setting a "C"-shaped limiting plate 51, it is possible to effectively prevent the welding mechanism 3 from being clamped by the limiting plate 51 during welding, which would cause damage to the welding mechanism 3 or the limiting plate 51.

[0036] Furthermore, the push spring mechanism 4 includes two sets of push spring rods, which are arranged in parallel along the first direction. The two sets of push spring rods can open and close synchronously along the third direction and move synchronously along the first direction.

[0037] More specifically, by setting up two sets of push spring rods, the spacing of the springs output from the conveying mechanism 1 can be effectively guaranteed to be the same as the spacing between the two push spring rods.

[0038] Furthermore, the conveying mechanism 1 is a clamping conveyor belt / conveyor chain arranged opposite each other along the second direction to clamp and convey the spring.

[0039] More specifically, conveyor belts / conveyor chains have the advantages of stable and fast conveying, which is beneficial for the stable conveying of springs.

[0040] Furthermore, the welding mechanism 3 includes a welding knife 31 and a die 32, which can open and close relative to each other to clamp the cloth bag 2 for welding.

[0041] More specifically, generally, the welding knife 31 is an ultrasonic welding knife.

[0042] It should be noted that the welding knife 31 and the die 32 work together to clamp and weld the cloth bag 2, thereby ensuring the formation of the bag spring.

[0043] Furthermore, it also includes a scraper 6, which opens and closes synchronously with the welding mechanism 3 in a third direction and moves synchronously with the welding mechanism 3 in a first direction. The scraper 6 is used to cooperate with the conveying mechanism 1 and the push spring mechanism 4 to output the spring from the conveying mechanism 1.

[0044] More specifically, such as Figure 17 As shown, this utility model can also be equipped with a scraper 6. When the scraper 6 is equipped, it is necessary to avoid the opening and closing of the limiting mechanism 5, so as to prevent the scraper 6 from colliding with the limiting mechanism 5.

[0045] It should be noted that in one embodiment, the scraper 6 has a hollow center. When the limiting mechanism 5 is opened, the limiting plate 51 passes through the hollow center of the scraper 6. When the limiting plate 5 clamps the cloth bag, the highest point of the upper limiting plate 51 is lower than the lowest point of the upper scraper 6, and the lowest point of the lower limiting plate 51 is higher than the highest point of the lower scraper 6, thereby achieving the avoidance between the scraper 6 and the limiting mechanism 5.

[0046] Furthermore, it also includes a support mechanism 21, which is used to support the bag to form a bag opening shape, and the support mechanism consists of at least one support plate.

[0047] More specifically, by setting up the support mechanism 21, the cloth bag 2 can maintain the shape of the bag opening.

[0048] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A spring-loaded bag welding mechanism, characterized in that: Includes a conveying mechanism, a cloth bag, a welding mechanism, a push spring rod assembly, and a limit mechanism; The conveying mechanism is capable of clamping both ends of the spring in the second direction and conveying the spring in the first direction; The bag at least partially encloses the conveying mechanism so that the spring conveyed by the conveying mechanism enters the bag; The welding mechanism can open and close relative to each other to clamp the cloth bag and weld the bag to seal it to form a bag spring. The welding mechanism can move back and forth along the first direction. The spring pusher mechanism consists of at least one set of spring pusher rods. The spring pusher mechanism can open and close independently or synchronously with the welding mechanism. The spring pusher mechanism can move independently or synchronously with the welding mechanism along a first direction. Each set of spring pusher rods consists of two spring pusher rods arranged opposite each other along a third direction. The spring pusher rods are located on the outside of the bag. The spring pusher rods are used to cooperate with the conveying mechanism to output the spring from the conveying mechanism. A limiting mechanism, located at the output end of the conveying mechanism and capable of opening and closing independently, is used to clamp the bag between the spring located inside the output end of the conveying mechanism and the spring located outside the output end of the conveying mechanism to limit the spring. When the welding mechanism clamps the bag between the spring located inside the output end of the conveying mechanism and the spring located outside the output end of the conveying mechanism, the limiting mechanism releases the bag; when the push spring rod pushes the spring inside the bag out of the output end of the conveying mechanism, the limiting mechanism clamps the bag to limit the spring; when the limiting mechanism clamps the bag to limit the spring, the push spring rod can release the bag and move along the first direction.

2. The spring-feeding bag welding mechanism as described in claim 1, characterized in that: The push spring mechanism and the welding mechanism open and close synchronously in the third direction and move synchronously in the first direction.

3. The spring-loaded bag welding mechanism as described in claim 1, characterized in that: The push spring mechanism can open and close independently along a third direction and move independently along a first direction. When the limiting mechanism clamps the bag and limits the spring, the push spring mechanism opens and releases the bag along a third direction and moves along the first direction.

4. The spring-loaded bag welding mechanism as described in claim 1, characterized in that: The limiting mechanism is at least one set of limiting plates located on the outside of the bag. Each set of limiting plates consists of two limiting plates arranged opposite each other along a third direction. The clamping plane of the two limiting plates is parallel to the welding surface of the welding mechanism.

5. The spring-loaded bag welding mechanism as described in claim 4, characterized in that: The limiting plate is C-shaped, and the clamping position of the welding mechanism at least partially overlaps with the C-shaped clearance of the limiting plate.

6. The spring-feeding bag welding mechanism as described in claim 1, characterized in that: The push spring mechanism includes two sets of push spring rods, which are arranged in parallel along a first direction. The two sets of push spring rods can open and close synchronously along a third direction and move synchronously along the first direction.

7. The spring-feeding bag welding mechanism as described in claim 1, characterized in that: The conveying mechanism is a clamping conveyor belt / conveyor chain arranged opposite each other along the second direction to clamp and convey the spring.

8. The spring-loaded bag welding mechanism as described in claim 1, characterized in that: The welding mechanism includes a welding knife and a die, which can open and close relative to each other to clamp the cloth bag for welding.

9. The spring-feeding bag welding mechanism as described in claim 1, characterized in that: It also includes a scraper, which opens and closes synchronously with the welding mechanism along a third direction and moves synchronously with the welding mechanism along a first direction. The scraper is used to cooperate with the conveying mechanism and the push spring mechanism to output the spring from the conveying mechanism.

10. The spring-loaded bag welding mechanism as described in claim 1, characterized in that: It also includes a support mechanism for supporting the bag to form a bag opening shape, the support mechanism consisting of at least one support plate.

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