A drag chain forming and assembling integrated mold

Abstract

The present application relates to the technical field of drag chain manufacturing process, and more particularly to a drag chain forming and assembling integrated die, which comprises a matched upper die and lower die, a row position mechanism is slidably connected to the lower die, the lower die, the row position mechanism and the upper die constitute a die cavity for forming a chain link after the lower die and the upper die are closed, and a glue feeding system is arranged between the upper die and the lower die and communicates with the die cavity, a chain link assembling seat, a row position oil cylinder, an ejection mechanism and a power pushing mechanism are further arranged on the lower die, the row position oil cylinder is used to move the row position mechanism from the die to between the chain link assembling seat and the ejection mechanism, an assembling channel is arranged on the chain link assembling seat and is docked with the ejection mechanism, the assembling channel is arranged in a penetrating manner along the ejection direction of the ejection mechanism, so that the ejection mechanism can drive the chain link to be directionally pushed into the assembling channel after the chain link is demolded; the assembling process of the traditional chain link is directly removed, the whole production process is more convenient and efficient, the finished product does not need to be manually taken out by workers, the drag chain can be self-assembled, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of cable chain manufacturing technology, and in particular to an integrated mold for forming and assembling cable chains. Background Technology

[0002] Cable chains are commonly used to carry and protect cables, hydraulic hoses, air hoses, and other media pipes, and to regulate their movement to prevent them from tangling, twisting, and being damaged. In the traditional cable chain manufacturing process, the chain links are first injection molded using molds, and then assembled manually or by automated equipment. Traditional automated equipment for assembling cable chains requires the design of a vibratory feeder to achieve directional feeding of the chain links. Therefore, if the cable chain is assembled by equipment, the injection-molded chain links need to be transferred to the vibratory feeder of the assembly equipment. This will incur manual handling costs and various costs incurred in directional feeding of the chain links. In addition, the use of traditional automated equipment also has the problem of large equipment footprint.

[0003] With the continuous development and upgrading of mold technology, in order to reduce assembly costs, some existing products and injection molds adopt ingenious structural designs to achieve in-mold assembly. That is, mold design that integrates product molding and assembly. In the field of cable chains, this technology is currently not yet feasible. If a cable chain molding and assembly integrated mold is designed specifically for the production of cable chains, the entire production process will be more convenient and efficient. There is no need for manual removal of finished products, and they can be assembled into cable chains by themselves, which greatly improves production efficiency. Therefore, it is necessary to propose a cable chain molding and assembly integrated mold. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.

[0005] A drag chain forming and assembly integrated mold includes an upper mold and a lower mold that cooperate with each other. A sliding mechanism is slidably connected to the lower mold. After the lower mold, the sliding mechanism and the upper mold are closed, they form a mold cavity for forming drag chain links. A glue injection system communicating with the mold cavity is provided between the upper mold and the lower mold. A drag chain assembly seat, a sliding cylinder, an ejection mechanism and a power pushing mechanism are also provided on the lower mold. The sliding cylinder is used to move the sliding mechanism from inside the mold to between the drag chain assembly seat and the ejection mechanism. An assembly channel that engages with the ejection mechanism is provided on the drag chain assembly seat. The assembly channel is provided through the ejection direction of the ejection mechanism, so that the ejection mechanism can drive the drag chain to be demolded and pushed into the assembly channel in a specific direction.

[0006] An assembly pusher block is slidably connected to the chain link assembly seat and docked in the assembly channel. A power push mechanism is used to drive the assembly pusher block to move, so that the previous chain link in the assembly channel is pressed. The next chain link in the assembly channel is driven by the ejection mechanism to be inserted into the pressed chain link, thereby completing the assembly of two chain links.

[0007] Preferably, a receiving chamber is formed between the chain link assembly seat and the lower mold, and the ejection mechanism is connected to the bottom of the receiving chamber; the sliding cylinder enters the mold along the receiving chamber and connects with the sliding mechanism, so that the sliding mechanism can be pulled out into the receiving chamber by the sliding cylinder to perform the demolding assembly operation.

[0008] Preferably, the side of the link assembly seat is provided with a sliding port that is misaligned and connected to the assembly channel, so that there are overlapping areas and non-overlapping areas between the sliding port and the assembly channel. The assembly push block is slidably connected to the sliding port, and the power push mechanism is used to drive the slider to switch between the overlapping area and the non-overlapping area of ​​the sliding port, so that the link passing through the overlapping area is pressed or released by the push of the assembly push block.

[0009] Preferably, the sliding mechanism includes a sliding seat, a chain link side insert, a chain link lower insert, and an elastic support mechanism. The sliding seat is slidably connected to the lower mold. The chain link side insert is used to form one side of the mold cavity and is fixedly connected to the sliding seat. The chain link lower insert is used to form the bottom of the mold cavity. The chain link lower insert is elastically engaged with the sliding seat through the elastic support mechanism, so that the chain link lower insert overcomes the elastic support mechanism to abut against the chain link side insert after the mold is closed. After the mold is opened, the chain link lower insert is separated from the chain link side insert by the elastic support mechanism. After the mold is opened, the sliding cylinder pushes the chain link lower insert to move between the chain link assembly seat and the ejection mechanism.

[0010] Preferably, a glue-feeding insert is provided on the lower mold and abuts to the lower insert of the link. The side insert of the link is used to form the other side of the mold cavity. An upper insert of the link is provided on the upper mold and abuts to the glue-feeding insert. The upper insert of the link is used to form the top of the mold cavity. The glue-feeding system has a glue-feeding channel and a sprue connected to the glue-feeding channel. The glue-feeding channel is located between the upper insert of the link and the glue-feeding insert. The sprue is connected to the mold cavity along the glue-feeding insert.

[0011] Preferably, the sliding mechanism, chain link assembly seat, sliding cylinder, ejection mechanism and power drive mechanism are symmetrically arranged in two sets along both sides of the lower mold, and the two sets of sliding mechanisms share the injection insert and the upper insert of the chain link.

[0012] Preferably, multiple uniformly arranged mold cavities are formed between the side inserts, lower inserts, glue inserts, and upper inserts of the chain links. The multiple mold cavities are arranged laterally, and multiple assembly channels and multiple sliding openings are correspondingly provided on the chain link assembly base.

[0013] Preferably, the upper part of the chain link assembly seat is provided with an inclined surface, and the assembly channel runs through the upper part of the chain link assembly seat, so that the assembly channel forms multiple discharge ports of different heights on the inclined surface.

[0014] Preferably, the power pushing mechanism includes a connecting seat, a pushing cylinder, and a pushing rod. The connecting seat is fixedly installed on the lower mold. The connecting seat has an irregular through hole that mates with the pushing rod. One end of the pushing rod is provided with an irregular guide post that matches the irregular through hole. The pushing rod slides through the irregular guide post and the irregular through hole. The other end of the pushing rod is connected to the piston end of the pushing cylinder. Multiple pushing sliders are provided with corresponding sliding ports, and multiple pushing sliders are fixedly connected to the pushing rod.

[0015] Preferably, the ejection mechanism is provided with two ejector pins for each link, and the ejection mechanism also includes an ejector plate slidably connected to the lower mold for pushing the ejector pins. A latching mechanism is installed on the ejector plate, and a roller-type micro-motion solenoid valve is installed on the lower mold. The solenoid valve is connected to the pushing cylinder by an air circuit. A spring-loaded component is provided on the latching mechanism. The upper and lower ends of the spring-loaded component are inclined guide surfaces. A micro-motion roller acting on the spring-loaded component is provided on the roller-type micro-motion solenoid valve, and a limiting component for abutting the lower end of the micro-motion roller is also installed on the lower mold.

[0016] When the buckle is driven upward by the ejector plate, the spring-loaded component activates the roller-type micro-solenoid valve to drive the push cylinder. After the spring-loaded component activates the roller-type micro-solenoid valve, the spring-loaded component is driven to retract by the roller-type micro-solenoid valve through the inclined guide surface, so that the buckle can pass through the roller-type micro-solenoid valve.

[0017] When the buckle is driven downward by the ejector plate, the spring is retracted by the roller-type micro-motion solenoid valve through the inclined guide surface, so that the buckle can pass through the roller-type micro-motion solenoid valve.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] By using a sliding cylinder to push the sliding mechanism to the outside of the lower and upper molds and docking with the chain link assembly seat, the ejector mechanism ejects the formed chain links, allowing them to enter the assembly channel of the chain link assembly seat. An assembly pusher is installed in the chain link assembly channel, and a pushing mechanism drives the assembly pusher to generate the power to assemble the chain links. This allows the previous chain link in the assembly channel to be pressed, while the next chain link, during the ejection process, will engage with the pressed chain link. The assembled chain link will be further pushed upwards by the ejector mechanism, thus achieving chain link forming and assembly directly on the mold. This eliminates the traditional chain link assembly process, making the entire production process more convenient and efficient. There is no need for manual removal of finished products; they can be automatically assembled into cable chains, greatly improving production efficiency and reducing equipment, labor, and space costs in the cable chain manufacturing process.

[0020] Because the upper part of the chain link assembly seat is provided with an inclined surface, and the assembly channel runs through the upper part of the chain link assembly seat, the assembly channel forms multiple discharge ports of different heights on the inclined surface. Therefore, the drag chain being pushed upward will not leave the chain link assembly seat at the same time, so that the discharge of the drag chain can be automatically and intermittently operated.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0025] Figure 3 This is the present invention. Figure 2 Schematic diagram of the structure at point A;

[0026] Figure 4 This is the present invention. Figure 2 Schematic diagram of the structure at point B;

[0027] Figure 5 This is a schematic diagram of the structure of the present invention in the mold-open state;

[0028] Figure 6 This is a schematic diagram of the side structure after the upper mold is removed according to the present invention;

[0029] Figure 7 This is a schematic cross-sectional view of the link assembly base and the lower insert of the link in this invention.

[0030] Figure 8 This is a schematic diagram of the chain link assembly base, the sliding mechanism, and the power drive mechanism in this invention.

[0031] The reference numerals and names in the figure are as follows:

[0032] 1. Chain link, 2. Mold cavity, 3. Glue injection system, 10. Upper mold, 11. Upper insert of chain link, 20. Lower mold, 21. Glue injection insert, 30. Sliding mechanism, 31. Sliding cylinder, 32. Slide seat, 33. Side insert of chain link, 34. Lower insert of chain link, 35. Elastic support mechanism, 40. Chain link assembly seat, 41. Assembly track, 42. Assembly push block, 43. Sliding port, 46. Discharge port, 50. Ejection mechanism, 51. Ejector pin, 52. Ejector plate, 53. Buckle, 54. Springback part, 55. Roller-type micro-motion solenoid valve, 56. Micro-motion roller, 57. Limiting part, 60. Power push mechanism, 61. Connecting seat, 62. Push cylinder, 63. Push rod, 64. Irregular through hole, 65. Irregular guide post. Detailed Implementation

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-8 In this embodiment of the invention, a drag chain forming and assembly integrated mold includes an upper mold 10 and a lower mold 20 that cooperate with each other. A sliding mechanism 30 is slidably connected to the lower mold 20. After the lower mold 20, the sliding mechanism 30 and the upper mold 10 are closed, they form a mold cavity 2 for forming the drag chain link 1. A glue injection system 3 communicating with the mold cavity 2 is provided between the upper mold 10 and the lower mold 20. A drag chain assembly seat 40, a sliding cylinder 31, an ejection mechanism 50 and a power pushing mechanism 60 are also provided on the lower mold 20. The sliding cylinder 31 is used to move the sliding mechanism 30 from inside the mold to between the drag chain assembly seat 40 and the ejection mechanism 50. An assembly channel 41 that is connected to the ejection mechanism 50 is provided on the drag chain assembly seat 40. The assembly channel 41 is provided through the ejection direction of the ejection mechanism 50, so that the ejection mechanism 50 can drive the drag chain link 1 to be demolded and pushed into the assembly channel 41 in a directional manner.

[0035] An assembly pusher 42 is slidably connected to the link assembly seat 40 and docked in the assembly channel 41. The power push mechanism 60 is used to drive the assembly pusher 42 to move, so that the previous link 1 in the assembly channel 41 is pressed. The next link 1 in the channel is driven by the ejection mechanism 50 to be inserted into the pressed link 1, thereby completing the assembly of the two links 1.

[0036] By using the sliding cylinder 31 to push the sliding mechanism 30 to the outside of the lower mold 20 and the upper mold 10 and docking with the link assembly seat 40, the ejection mechanism 50 ejects the formed link 1, so that the link 1 enters the assembly channel 41 of the link assembly seat 40 after being ejected. By setting the assembly push block 42 in the link 1 assembly channel 41, the pushing mechanism pushes the assembly push block 42 to generate the power to assemble the link 1, so that the previous link 1 in the assembly channel 41 can be pressed, and the next link 1 will be snapped and assembled with the pressed link 1 during the ejection process of the ejection mechanism 50. The assembled link 1 will be pushed further upward by the ejection mechanism 50, so that the forming and assembly of the link 1 can be completed directly on the mold, thereby directly eliminating the traditional link 1 assembly process, and greatly reducing the equipment cost, labor cost and site occupation cost in the drag chain process.

[0037] The working principle of this embodiment is as follows:

[0038] Taking two adjacent chain links 1 formed by the mold as the first chain link 1 and the second chain link 1, the mold is opened after the first chain link 1 is injection molded. The upper mold 10 opens first, leaving the first chain link 1 on the sliding mechanism 30. At this time, the driving sliding cylinder 31 pulls the sliding mechanism 30 to the position between the chain link assembly seat 40 and the ejection mechanism 50. The injection molding machine cylinder pushes the ejection mechanism 50, causing the ejection mechanism 50 to push the first chain link 1 into the assembly channel 41. After the first chain link 1 enters the assembly channel 41, the power pushing mechanism 60 drives the assembly push block 42 to press down the first chain link 1. After pressing down, the ejection mechanism 50 resets, and then the sliding mechanism 30 resets. The upper mold 10 and the lower mold 20 close the mold, and the injection molding of the second chain link 1 continues. When the second chain link 1 is formed and moves to the position of the assembly channel 41 in the same way, the ejection mechanism 50 will press down on the second chain link. 1. The first link 1 is fastened and assembled. After assembly, the power push mechanism 60 drives the assembly push block 42 to release the first link 1. The ejection mechanism 50 continues to push the second link 1 to the position of the first link 1. At this time, the power push mechanism 60 continues to drive the assembly push block 42 to press the second link 1. In this way, the links 1 of each injection molding can be assembled. The system can also set the number of drag chain links 1. When the number of drag chain links 1 assembled is reached, the ejection mechanism 50 will push the links 1 to continue to move into the assembly channel 41. During the movement, the power push mechanism 60 will drive the assembly push block 42 to release the first link 1. At this time, the two adjacent links 1 will not be able to complete the fastening and assembly action due to the loss of the constraint of the assembly push block 42. The two adjacent links 1 will be disconnected, thus assembling into a drag chain with a set number of links and automatically disengaging.

[0039] Please see Figure 4 and Figure 7In this embodiment, a receiving chamber is formed between the chain link assembly seat 40 and the lower mold 20, and the ejection mechanism 50 is connected to the bottom of the receiving chamber. The sliding cylinder 31 enters the mold along the receiving chamber and connects with the sliding mechanism 30 so that the sliding mechanism 30 can be pulled out into the receiving chamber by the sliding cylinder 31 to perform demolding assembly operation. It should be noted that if the upper end of the chain link 1 formed after the upper mold 10 is opened is higher than the sliding mechanism 30, then the lower end of the chain link assembly seat 40 needs to be provided with a clearance structure, or the chain link assembly seat 40 can be directly higher than the chain link 1. The position of the sliding mechanism 30 can be determined by setting a limiting structure, or by the sliding cylinder 31, or by other methods. These will not be listed one by one in this embodiment.

[0040] Please see Figure 4-6 In this embodiment, based on the cooperation relationship between the assembly push block 42 and the chain link assembly seat 40, the side of the chain link assembly seat 40 is provided with a sliding port 43 that is misaligned and connected to the assembly channel 41, so that there are overlapping areas and non-overlapping areas between the sliding port 43 and the assembly channel 41. The assembly push block 42 is slidably connected to the sliding port 43. The power pushing mechanism 60 is used to drive the slider to switch between the overlapping area and the non-overlapping area of ​​the sliding port 43, so that the chain link 1 passing through the overlapping area is pressed or released by the push of the assembly push block 42, making the overall fit ingenious and compact.

[0041] Please see Figure 3-5In this embodiment, the sliding mechanism 30 includes a sliding seat 32, a chain link side insert 33, a chain link lower insert 34, and an elastic opening mechanism 35. The sliding seat 32 is slidably connected to the lower mold 20. The chain link side insert 33 is used to form one side of the mold cavity 2 and is fixedly connected to the sliding seat 32. The chain link lower insert 34 is used to form the bottom of the mold cavity 2. The chain link lower insert 34 is elastically engaged with the sliding seat 32 through the elastic opening mechanism 35, so that after the mold is closed, the chain link lower insert 34 overcomes the elastic opening mechanism 35 to abut against the chain link side insert 33. After the mold is opened, the chain link lower insert 34 is opened by the elastic opening mechanism 35 to separate from the chain link side insert 33. After the mold is opened, the sliding cylinder 31 pushes the chain link lower insert 34 to move between the chain link assembly seat 40 and the ejection mechanism 50. The chain link 1 formed in the mold cavity 2 is in a vertical state. Link 1 has two side plates and two cover plates integrally connected between the two side plates. The two side plates and the two cover plates form an enclosing structure. The two ends of the side plates have a pivot and a shaft hole, respectively. The two links 1 are rotatably connected through the pivot and shaft hole. That is, after the mold is opened, link 1 is inserted into the lower insert 34 of the link through the two cover plates and the side plates. One side plate formed by the side insert 33 of the link will be released by the elastic opening mechanism 35. When link 1 moves between the link assembly seat 40 and the ejection mechanism 50, the ejection mechanism 50 is provided with two ejector pins 51 to push link 1 upward into the assembly channel 41 by pressing against the two side plates. Therefore, by using the elastic opening mechanism 35 to implement the secondary demolding of the sliding mechanism 30 and the vertical state maintained by link 1 after molding, it is possible to meet the operation of upward ejection.

[0042] Please see Figure 2-7In this embodiment, a glue inlet 21 is provided on the lower mold 20, which is connected to the lower insert 34 of the link. The side insert 33 of the link is used to form the other side of the mold cavity 2. An upper insert 11 of the link is provided on the upper mold 10, which is connected to the glue inlet 21. The upper insert 11 of the link is used to form the top of the mold cavity 2. The glue inlet system 3 has a glue inlet channel and a sprue connected to the glue inlet channel. The glue inlet channel is located between the upper insert 11 of the link and the glue inlet 21. The sprue is located along the glue inlet insert. 21 connects to the mold cavity 2, so that the surface where the sprue is disconnected is in normal alignment with the direction in which the chain link 1 is pushed out, thus preventing the sprue from scratching the chain link 1. Furthermore, based on this structure, a symmetrical structure is achieved, with two sets of sliding mechanisms 30, chain link assembly seats 40, sliding cylinders 31, ejection mechanisms 50, and power pushing mechanisms 60 symmetrically arranged along both sides of the lower mold 20. The two sets of sliding mechanisms 30 share the injection insert 21 and the upper insert 11 of the chain link, enabling the mold to achieve... The mold can assemble at least two chain links 1. It can also be configured with side inserts 33, lower inserts 21, and upper inserts 11 to form multiple evenly arranged mold cavities 2, arranged laterally. The chain link assembly base 40 is equipped with multiple assembly channels 41 and multiple sliding openings 43. This allows the mold to sequentially form multiple chain links 1 and simultaneously assemble them, significantly improving production efficiency. To prevent the same row of drag chains on the chain link assembly base 40 from interfering with each other during discharge, the upper part of the chain link assembly base 40 is provided with an inclined surface. The assembly channels 41 penetrate the upper part of the chain link assembly base 40, forming multiple discharge openings 46 of different heights on the inclined surface. This configuration fully utilizes the curvature and bending of the drag chains themselves to allow multiple drag chains to be discharged in the same direction at different positions and heights after discharge, preventing relative contact or collision between the multiple drag chains and thus avoiding operational jamming.

[0043] Please see Figure 8 In this embodiment, in order to simultaneously press down multiple chain links 1 corresponding to multiple assembly channels 41 on a chain link assembly seat 40, the power push mechanism 60 includes a connecting seat 61, a push cylinder 62, and a push rod 63. The connecting seat 61 is fixedly installed on the lower mold 20. The connecting seat 61 has an irregular through hole 64 that mates with the push rod 63. One end of the push rod 63 is provided with an irregular guide post 65 that matches the irregular through hole 64. The push rod 63 is guided and slidably engaged with the irregular through hole 64 through the irregular guide post 65. The other end of the push rod 63 is connected to the piston end of the push cylinder 62. Multiple push sliders are provided with corresponding sliding ports 43, and multiple push sliders are fixedly connected to the push rod 63.

[0044] Please see Figure 6-8In this embodiment, based on the cooperative action between the ejection mechanism 50 and the power pushing mechanism 60, the present invention sets the ejection mechanism 50 to set two ejector pins 51 for each link 1, and the ejection mechanism 50 also includes an ejector plate 52 slidably connected to the lower mold 20 for pushing the ejector pins 51. A latching mechanism 53 is installed on the ejector plate 52, and a roller-type micro-motion solenoid valve 55 is installed on the lower mold 20. The solenoid valve is connected to the pushing cylinder 62 through an air circuit. A spring-loaded component 54 is provided on the latching mechanism 53. The upper and lower ends of the spring-loaded component 54 are inclined guide surfaces. A micro-motion roller 56 acting on the spring-loaded component 54 is provided on the roller-type micro-motion solenoid valve 55, and a limiting component 57 for abutting the lower end of the micro-motion roller 56 is also installed on the lower mold 20.

[0045] When the latch 53 is driven upward by the ejector plate 52, the spring-loaded component 54 engages the roller-type micro-motion solenoid valve 55 to drive the push cylinder 62. After the spring-loaded component 54 engages the roller-type micro-motion solenoid valve 55, the spring-loaded component 54 is driven to retract by the roller-type micro-motion solenoid valve 55 through the inclined guide surface, so that the latch 53 can pass through the roller-type micro-motion solenoid valve 55.

[0046] When the latch 53 is driven downward by the ejector plate 52, the spring 54 is driven to retract by the roller micro-motion solenoid valve 55 through the inclined guide surface, so that the latch 53 can pass through the roller micro-motion solenoid valve 55.

[0047] To further illustrate the above operating principle, let's take two adjacent links 1 in the mold forming process as the first link 1 and the second link 1, respectively, for explanation:

[0048] When the first link 1 is formed and moves to the position between the link assembly seat 40 and the ejector mechanism 50, the injection molding machine's hydraulic rod will drive the ejector plate 52, thereby driving the ejector pin 51 to push the first link 1 upward. During the pushing process, the latch 53 pushes the micro-motion roller 56 on the roller-type micro-motion solenoid valve 55 through the spring-loaded member 54. After the micro-motion roller 56 is pushed, the roller-type micro-motion solenoid valve 55 will work, thereby causing the push cylinder 62 to run and drive the assembly push block 42 away from the overlapping area, while the ejector plate 52 continues to move. At this time, the spring-loaded member 54 retracts and passes through the micro-motion roller 56 in a sloped manner, so that the ejector plate 52 will not cause obstruction when moving upward. At the same time, after the spring-loaded member 54 passes through the micro-motion roller 56, the micro-motion roller 56 will reset, thus performing a reset delay operation on the roller-type micro-motion solenoid valve 55. After the micro-motion roller 56 is reset, the assembly push block 42 will not move to the overlapping area within a unit time until the ejector pin 51 pushes the first link 1 to the highest point and is flush with the assembly push block 42. Then the roller-type micro-motion solenoid valve 55 will work, thereby causing the push cylinder 62 to run to drive the assembly push block 42 to move to the overlapping area and press the first link 1. At this time, the injection molding machine cylinder drives the ejector plate 52 to move back, and the spring 54 passes through the micro-motion roller 56 again. Since the micro-motion roller 56 is reset and abuts against the limit member 57, it can directly drive the spring 54 to spring back, so that the entire return process of the buckle 53 will not drive the roller-type micro-motion solenoid valve 55. The ejector pin 51 returns to the initial position, and the sliding mechanism 30 is driven into the mold by the sliding cylinder 31. The upper mold 10 closes and performs the injection molding operation of the second link 1.

[0049] After the second link 1 is injection molded, it moves to the position of the link assembly seat 40 in the same way. At this time, the injection molding machine cylinder pushes the ejector plate 52 again to drive the ejector pin 51, thereby pushing the second link 1 upward to engage with the pressed first link 1. After the first link 1 and the second link 1 are assembled, the spring-loaded component 54 will also move to the position of the micro-motion roller 56 and engage the micro-motion roller 56. After the micro-motion roller 56 is engaged, the assembly push block 42 will release the first link 1, so that the ejector pin 51 can drive the assembled first link 1 and the second link 1 to continue to move upward. During this process, the spring-loaded component 54 passes through the micro-motion roller 56 in the same way, so that the micro-motion roller 56 is reset and the timing stage begins. When the second link 1 is aligned with the assembly push block 42, the roller-type micro-motion solenoid valve 55 will work, thereby causing the push cylinder 62 to run to drive the assembly push block 42 to move towards the overlapping area and press the second link 1. At this time, the injection molding machine cylinder drives the ejector plate 52 to move back, and the spring 54 passes through the micro-motion roller 56 again. The micro-motion roller 56, after resetting, abuts against the limit piece 57, which can directly drive the spring 54 to spring back, so that the entire return process of the buckle 53 will not drive the roller-type micro-motion solenoid valve 55. The ejector pin 51 returns to the initial position, and the sliding mechanism 30 is driven into the mold by the sliding cylinder 31. The upper mold 10 closes and continues the injection molding and assembly operation of the next link 1.

[0050] Once the number of links 1 in the cable chain assembly reaches a preset number, a material cut-off mode can be programmed. This mode is entered when the preset number of links 1 in each cable chain is reached. Once in this mode, the roller-type micro-motion solenoid valve 55 automatically controls the push cylinder 62 to move the assembly push block 42 away from the overlapping area during the next link 1 assembly action. The roller-type micro-motion solenoid valve 55 then triggers again to exit the material cut-off mode. Specifically, taking the third link 1 as the first link 1 of another cable chain as an example, when the third link 1 is formed and moves to the assembly channel 41, the system automatically controls the roller-type micro-motion solenoid valve 55, thereby controlling the push cylinder 62 to move the assembly push block 42 away from the overlapping area. At this time, when the third link 1 is pushed upwards by the ejector pin 51, the previous link 1, no longer restrained by the assembly push block 42, will... The first drag chain is assembled with the third link 1. The third link 1 will drive the entire drag chain upward. At this time, the spring-loaded part 54 will once again pull the micro-motion roller 56, thereby triggering the roller-type micro-motion solenoid valve 55, and the material cut-off mode will be exited. Until the third link 1 moves to be flush with the assembly push block 42, the roller-type micro-motion solenoid valve 55 will be triggered as before, causing the push cylinder 62 to drive the assembly push block 42 to press the third link 1 again, and continue the forming and assembly of the second drag chain. The first drag chain will be brought out of the link assembly seat 40 as the second drag chain moves upward. Since the upper part of the link assembly seat 40 is provided with an inclined surface, the assembly channel 41 runs through the upper part of the link assembly seat 40, so that the assembly channel 41 forms multiple discharge ports 46 of different heights on the inclined surface. Therefore, the drag chain being pushed upward will not leave the link assembly seat 40 at the same time, so that the discharge of the drag chain can be automatically and intermittently operated.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A drag chain forming and assembly integrated mold, comprising an upper mold and a lower mold that cooperate with each other, a sliding mechanism slidably connected to the lower mold, the lower mold, the sliding mechanism and the upper mold forming a mold cavity for forming chain links after being closed, and a glue injection system communicating with the mold cavity is provided between the upper mold and the lower mold, characterized in that, The lower mold is also equipped with a link assembly seat, a sliding cylinder, an ejection mechanism and a power drive mechanism. The sliding cylinder is used to move the sliding mechanism from inside the mold to between the link assembly seat and the ejection mechanism. The link assembly seat is provided with an assembly channel that connects to the ejection mechanism. The assembly channel runs through the ejection direction of the ejection mechanism, so that the ejection mechanism can drive the link to be demolded and pushed into the assembly channel in a directional manner. An assembly pusher block is slidably connected to the chain link assembly seat and docked in the assembly channel. The power push mechanism is used to drive the assembly pusher block to move, so that the previous chain link in the assembly channel is pressed, and the next chain link in the assembly channel is driven by the ejection mechanism to be inserted into the pressed chain link, thereby completing the assembly of two chain links. A receiving chamber is formed between the chain link assembly base and the lower mold, and the ejection mechanism is connected to the bottom of the receiving chamber; the sliding cylinder enters the mold along the receiving chamber and connects with the sliding mechanism, so that the sliding mechanism can be pulled out into the receiving chamber by the sliding cylinder to perform the demolding assembly operation.

2. The integrated mold for forming and assembling a cable chain according to claim 1, characterized in that, The side of the chain link assembly seat has a sliding opening that is misaligned and connected to the assembly channel, so that there are overlapping and non-overlapping areas between the sliding opening and the assembly channel. The assembly push block is slidably connected to the sliding opening. The power push mechanism is used to drive the slider to switch between the overlapping and non-overlapping areas of the sliding opening, so that the chain link passing through the overlapping area is pressed or released by the push of the assembly push block.

3. A drag chain forming and assembly integrated mold according to any one of claims 1-2, characterized in that, The sliding mechanism includes a sliding seat, a side insert of the chain link, a lower insert of the chain link, and an elastic support mechanism. The sliding seat is slidably connected to the lower mold. The side insert of the chain link is used to form one side of the mold cavity and is fixedly connected to the sliding seat. The lower insert of the chain link is used to form the bottom of the mold cavity. The lower insert of the chain link is elastically engaged with the sliding seat through the elastic support mechanism, so that after the mold is closed, the lower insert of the chain link overcomes the elastic support mechanism to abut against the side insert of the chain link. After the mold is opened, the lower insert of the chain link is separated from the side insert of the chain link by the elastic support mechanism. After the mold is opened, the sliding cylinder pushes the lower insert of the chain link to move between the chain link assembly seat and the ejection mechanism.

4. The integrated mold for forming and assembling a cable chain according to claim 3, characterized in that, The lower mold has a sprue insert that mates with the lower insert of the link. The side insert of the link forms the other side of the mold cavity. The upper mold has an upper insert that mates with the sprue insert. The upper insert of the link forms the top of the mold cavity. The sprue system has a sprue channel and a sprue connected to the sprue channel. The sprue channel is located between the upper insert of the link and the sprue insert. The sprue connects to the mold cavity along the sprue insert.

5. The integrated mold for forming and assembling a cable chain according to claim 4, characterized in that, The sliding mechanism, chain link assembly base, sliding cylinder, ejection mechanism and power drive mechanism are all symmetrically arranged in two sets along both sides of the lower mold. The two sets of sliding mechanisms share the injection insert and the upper insert of the chain link.

6. A drag chain forming and assembly integrated mold according to any one of claims 4-5, characterized in that, Multiple uniformly arranged mold cavities are formed between the side inserts, lower inserts, glue inserts, and upper inserts of the chain links. The multiple mold cavities are arranged laterally, and multiple assembly channels and multiple sliding ports are correspondingly provided on the chain link assembly base.

7. The integrated mold for forming and assembling a cable chain according to claim 6, characterized in that, The upper part of the chain link assembly seat is provided with an inclined surface, and the assembly channel runs through the upper part of the chain link assembly seat, so that the assembly channel forms multiple discharge ports of different heights on the inclined surface.

8. The integrated mold for forming and assembling a cable chain according to claim 6, characterized in that, The power-driven mechanism includes a connecting seat, a pushing cylinder, and a pushing rod. The connecting seat is fixedly installed on the lower mold. The connecting seat has an irregularly shaped through hole that mates with the pushing rod. One end of the pushing rod is provided with an irregularly shaped guide post that matches the irregularly shaped through hole. The pushing rod slides through the irregularly shaped guide post and the irregularly shaped through hole. The other end of the pushing rod is connected to the piston end of the pushing cylinder. Multiple pushing sliders are provided with corresponding sliding ports. Multiple pushing sliders are fixedly connected to the pushing rod.

9. The integrated mold for forming and assembling a cable chain according to claim 8, characterized in that, The ejection mechanism is equipped with two ejector pins for each link, and also includes an ejector plate that is slidably connected to the lower mold to push the ejector pins. A latch is installed on the ejector plate, and a roller-type micro-motion solenoid valve is installed on the lower mold. The solenoid valve is connected to the push cylinder by an air circuit. A spring is provided on the latch, and the upper and lower ends of the spring are inclined guide surfaces. A micro-motion roller that acts on the spring is provided on the roller-type micro-motion solenoid valve, and a limiting member for abutting the lower end of the micro-motion roller is also installed on the lower mold. When the buckle is driven upward by the ejector plate, the spring-loaded component activates the roller-type micro-solenoid valve to drive the push cylinder. After the spring-loaded component activates the roller-type micro-solenoid valve, the spring-loaded component is driven to retract by the roller-type micro-solenoid valve through the inclined guide surface, so that the buckle can pass through the roller-type micro-solenoid valve. When the buckle is driven downward by the ejector plate, the spring is retracted by the roller-type micro-motion solenoid valve through the inclined guide surface, so that the buckle can pass through the roller-type micro-motion solenoid valve.

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