Extrusion device for compact chain production

Abstract

This invention discloses an extrusion device for compact chain production, belonging to the field of compact chain production technology. The extrusion device includes a base mechanism with multiple detachable locking blocks mounted at the top center. A drive mechanism and a secondary extrusion mechanism are respectively mounted at the rear and front ends of the top of the base mechanism. A preliminary extrusion mechanism is mounted on the drive mechanism. A limit mechanism is installed inside the front end of the base mechanism. A compact chain body is positioned on one side of the base mechanism. Multiple heating rods are placed inside the preliminary extrusion mechanism. This invention, through the design of the preliminary and secondary extrusion mechanisms, achieves the assembly connection between compact chains. Furthermore, reassembly can be performed through the movement of the drive and secondary extrusion mechanisms, eliminating the need for excessive manual operation, saving time and effort, and significantly reducing operational risks.

Description

Technical Field

[0001] This invention belongs to the field of compact chain production technology, and specifically relates to an extrusion device for compact chain production. Background Technology

[0002] Compact chains are a new type of chain product characterized by high strength, high wear resistance, and high load-bearing capacity. They are widely used in industries such as coal and gold mining. Compact chains utilize cast vertical rings, making them suitable for various standard mining compact chains. Their performance is significantly superior to flat vertical ring structures. Compact chains offer good flexibility, high strength, wear resistance, and a certain degree of ductility. When used as connectors in scraper conveyors in fully mechanized coal mining faces, they provide advantages such as flexibility, a shorter frame, large conveying capacity, and high reliability. The use of compact chains greatly improves production efficiency. Meanwhile, the production process of compact chains... The production process is mainly divided into two types. The first type uses extrusion molding for the vertical rings: blanking → chaining individual vertical rings → shot blasting of vertical rings → welding of vertical rings → heating of vertical rings → extrusion molding of vertical rings → weaving flat rings and vertical rings together → shot blasting → welding of flat rings → stretching to the specified size → heat treatment → pre-stretching and strengthening and shaping → inspection → pairing → warehousing. The second type uses forging molding for the vertical rings: blanking → weaving flat rings and vertical rings together → shot blasting → welding of flat rings → stretching to the specified size once → heat treatment → pre-stretching and strengthening and shaping twice → inspection → pairing → warehousing. In the production process of compact chains, heated round bars need to be extruded and deformed.

[0003] Existing extrusion devices for compact chain production often require manual assistance during extrusion. Extrusion often requires two steps or two directions of simultaneous extrusion. During weaving, manual contact is often required between the woven rings and the heated round bars, so that the round plates can be deformed and inserted into the rings to form an assembly. However, this method is highly demanding on manual labor and has certain risks. Weaving requires extruding and clamping one by one, which is also relatively inefficient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an extrusion device for compact chain production.

[0005] The technical solution adopted to solve the above technical problems is: an extrusion device for compact chain production, including a device base mechanism, a plurality of detachable locking block mechanisms are installed at the top center of the device base mechanism, and a drive mechanism and a secondary extrusion mechanism are respectively installed at the rear end and the front end of the top of the device base mechanism.

[0006] A preliminary extrusion mechanism is installed on the drive mechanism, a limiting mechanism is installed inside the front end of the device base mechanism, a compact chain body is provided on one side of the device base mechanism, and multiple heating rods are placed inside the preliminary extrusion mechanism.

[0007] Furthermore, the device base mechanism includes a base body, with a limiting support frame fixedly connected between the top two sides of the base body. Multiple sets of limiting blocks are fixedly connected to the top of the limiting support frame. A first mounting slot and a limiting slide groove corresponding to the initial extrusion mechanism are opened at the rear end of the top of the base body. A second mounting slot and a third mounting slot corresponding to the secondary extrusion mechanism and the limiting mechanism are respectively opened at the front end of the base body. A chain ring slot is opened at the bottom of the limiting support frame of the base body.

[0008] Through the above technical solution, the limiting support frame and multiple sets of limiting blocks are used to engage the detachable block mechanism. The first mounting slot is used to install the drive mechanism, the limiting slide is used to limit the movement of the initial extrusion mechanism, the second mounting slot is used to install the secondary extrusion mechanism, and the third mounting slot is used to install the limiting mechanism.

[0009] Furthermore, the detachable locking block mechanism includes a locking block body disposed between the limiting support frame and the chain ring locking groove. A limiting square plate is fixedly connected to the top of the locking block body, and a hand-held round rod is fixedly connected to the top of the limiting square plate. Arc-shaped limiting plates are fixedly connected to both sides of the locking block body, and a bottom locking block is fixedly connected to the bottom of the locking block body.

[0010] With the above technical solution, in use, multiple detachable locking mechanisms are first locked onto multiple sets of limiting locking blocks by limiting square plates. At the same time, the bottom locking block is locked into the groove on the inner surface of the bottom of the chain ring locking groove. Several integrally manufactured compact chain rings are taken and placed between multiple detachable locking mechanisms. The positioning is achieved by locking them together through the arc-shaped limiting plates on both sides of the detachable locking mechanisms.

[0011] Furthermore, the drive mechanism includes a first motor and two first bearing plates installed inside the first mounting slot, and the output end of the first motor is fixedly connected to a first transmission lead screw between the two first bearing plates.

[0012] Through the above technical solution, the first motor drives the first transmission screw to rotate between the two first bearing plates, thereby driving the overall preliminary extrusion mechanism to start moving.

[0013] Furthermore, the preliminary extrusion mechanism includes a first transmission ball sleeve mounted on a first transmission lead screw and two L-shaped limiting plates slidably connected inside a limiting groove. A mechanism support base plate is fixedly connected between the top of the first transmission ball sleeve and the top of the two L-shaped limiting plates. Multiple side connecting plates are fixedly connected to the top side of the mechanism support base plate, and a mechanism limiting top plate is fixedly connected to the top of the multiple side connecting plates. A U-shaped support plate is fixedly connected to the front end of the top of the mechanism limiting top plate, and a first hydraulic cylinder is fixedly connected to the top of the U-shaped support plate. Multiple limiting guide rods are fixedly connected to the bottom inner surface of the U-shaped support plate, and a sliding block is fixedly connected to the output end of the first hydraulic cylinder. The top of the mechanism support base plate and the bottom of the mechanism limiting top plate are both fixed. The mechanism is connected to two rotating support seats. Rotary mounting shaft housings are rotatably connected between the top of the mechanism support base plate and the bottom of the mechanism limiting top plate. Second hydraulic cylinders are installed inside the two rotating mounting shaft housings. Fixed shafts are rotatably connected to the output ends of the two second hydraulic cylinders. L-shaped push plates are fixedly connected to one side of each of the two fixed shafts. Two guide blocks are fixedly connected to the top and bottom of each of the two L-shaped push plates. A drive cylinder is fixedly connected to the rear end of the top of the mechanism support base plate. A push plate frame is fixedly connected to the output end of the drive cylinder. A feeding guide shell is fixedly connected to the top of the mechanism limiting top plate. Two guide rail grooves corresponding to the guide blocks are opened on both sides of the top of the mechanism support base plate and the bottom of the mechanism limiting top plate.

[0014] Through the above technical solution, two second hydraulic cylinders are activated to push two L-shaped push plates, which move along a specific direction via guide blocks and guide rails. This pushes the two L-shaped push plates to bend the ends of multiple heating rods. Driven by the two L-shaped push plates and limited by the sliding block, the multiple heating rods become U-shaped structures. The second hydraulic cylinders rotate during the pushing process and rotate between two rotating support seats by rotating the mounting shaft housing. Then, the two second hydraulic cylinders drive the two L-shaped push plates to reset. At this time, the first hydraulic cylinder drives the sliding block to slide upward a short distance under the action of multiple limit guide rods. Then, the drive cylinder pushes the push plate frame, which in turn drives the bottom U-shaped heating rod to move forward until the ends of the heating rod are inserted into the two integrally manufactured compact chain rings.

[0015] Furthermore, the limiting top plate of the mechanism has a strip-shaped through hole corresponding to the feeding guide shell, and the strip-shaped through hole and the heating round bar have the same external shape and structure. The heating round bar is engaged between two L-shaped push plates and a sliding block.

[0016] The above technical solution involves adding several red-hot heating rods to the forward feeding guide shell, one less than the number of integrally manufactured compact chain rings, and stacking the heating rods between the two L-shaped push plates and the sliding block.

[0017] Furthermore, the secondary extrusion mechanism includes a second motor and two second bearing plates installed inside the second mounting slot. The output end of the second motor is fixedly connected to a second transmission screw between the two second bearing plates. A second transmission ball sleeve is provided on the second transmission screw. A U-shaped mounting plate is fixedly connected to the top of the second transmission ball sleeve. A side limiting strip is fixedly connected to the front end face of the U-shaped mounting plate, and the side limiting strip slides in the third mounting slot. Two limiting holes are opened on the side limiting strip. A third hydraulic cylinder is fixedly connected to both sides of the top of the U-shaped mounting plate. A fixed frame plate is fixedly connected to the output end of each of the two third hydraulic cylinders. An extrusion roller is rotatably connected to each of the two fixed frame plates. A limiting round block is fixedly connected to the bottom of each of the two fixed frame plates. A limiting straight groove corresponding to the limiting round block is opened at the top center of the U-shaped mounting plate.

[0018] Through the above technical solution, two third hydraulic cylinders begin to push the corresponding fixed frame plates and extrusion rollers to further extrude both ends of the U-shaped heating rod, transforming the straight heating rod into a chain link structure and completing its assembly with other chain links. After the limiting mechanism releases its limit, the second motor drives the second transmission screw to rotate between the two second bearing plates, thereby moving the second transmission ball sleeve. Simultaneously, the two third hydraulic cylinders reset the fixed frame plates and extrusion rollers, and the drive cylinder pulls the push plate frame to reset, causing the stacked heating rod to fall down one section. Then, the first motor drives the first transmission screw to rotate between the two first bearing plates, thereby moving the first transmission ball sleeve and causing the initial extrusion mechanism to begin moving. When the secondary extrusion mechanism moves to the next point, the limiting mechanism resets and completes the limiting fixation. Similarly, the drive cylinder continues to push the push plate frame to move and insert the bottom U-shaped heating rod, completing the extrusion again through the secondary extrusion mechanism. This process is repeated to complete the production of a partial compact chain.

[0019] Furthermore, the limiting mechanism includes two fourth hydraulic cylinders installed at the bottom front end of the base body, with support plates fixedly connected to the output ends of the two fourth hydraulic cylinders, and multiple limiting rods fixedly connected to the top of the support plates.

[0020] Through the above technical solution, the two fourth hydraulic cylinders drive the support plate and multiple limit rods to rise, which can complete the limit support of the secondary extrusion mechanism, and the descent of the multiple limit rods can avoid blocking the movement of the entire secondary extrusion mechanism.

[0021] The beneficial effects of the present invention are as follows: (1) The present invention designs a preliminary extrusion mechanism and a secondary extrusion mechanism. Two second hydraulic cylinders start to push two L-shaped push plates, and move along a specific direction through guide blocks and guide rail grooves, thereby pushing the two L-shaped push plates to bend the two ends of multiple heating rods. Under the drive of the two L-shaped push plates and the limiting support of the sliding block, multiple heating rods become U-shaped structures. Then, the drive cylinder pushes the push plate frame, thereby driving the bottom U-shaped heating rod to move forward until the two ends of the heating rod are inserted into the two integrally made compact chain rings. Two third hydraulic cylinders start to push the corresponding fixed frame plate and extrusion rollers, thereby extruding the two ends of the U-shaped heating rods again, turning the straight heating rods into chain ring structures, and completing the assembly with other chain rings, realizing the assembly connection between compact chains. The assembly can be performed again by moving through the drive mechanism and the secondary extrusion mechanism, without the need for excessive manual operation, saving time and effort and greatly reducing the risk of operation; (2) The present invention completes the positioning of multiple integrally made compact chain rings by designing a detachable block mechanism. After the assembly is completed, multiple detachable block mechanisms are pulled out, one end of part of the compact chain is pulled out from the outlet on one side of the base body, and the last integrally made compact chain ring slides to the position of the other integrally made compact chain ring in the initial state. Then, the detachable block mechanism is inserted, one of which is inserted into the chain ring extruded by the first heating rod in the previous stage. Then, other integrally made compact chain rings are placed between multiple detachable block mechanisms, and several straight heating rods are added again. Then, the extrusion steps are repeated to realize the continuous production of compact chains. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the drive mechanism structure of the present invention;

[0024] Figure 3 yes Figure 2 Top view;

[0025] Figure 4 yes Figure 2 A sectional view;

[0026] Figure 5 This is a schematic diagram of the device base mechanism of the present invention;

[0027] Figure 6 This is a top view of the device base mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the detachable locking mechanism of the present invention;

[0029] Figure 8 This is a preliminary three-dimensional structural diagram of the extrusion mechanism of the present invention;

[0030] Figure 9 This is a schematic cross-sectional view of the preliminary extrusion mechanism of the present invention;

[0031] Figure 10 This is a schematic diagram of the bottom view of the mechanism limiting top plate of the present invention;

[0032] Figure 11 This is a schematic diagram of the internal structure of the preliminary extrusion mechanism of the present invention;

[0033] Figure 12 This is a partial structural diagram of the preliminary extrusion mechanism of the present invention;

[0034] Figure 13 This is a partial structural diagram of the secondary extrusion mechanism of the present invention;

[0035] Figure 14 This is an exploded view of part of the secondary extrusion mechanism of the present invention;

[0036] Figure 15 This is a schematic diagram of the limiting mechanism structure of the present invention;

[0037] Figure 16 This is a diagram showing the initial state of the U-shaped heated round bar being extruded by the secondary extrusion mechanism of the present invention.

[0038] Reference numerals: 1. Device base mechanism; 101. Base body; 102. Limiting support frame; 103. Limiting block; 104. First mounting slot; 105. Limiting slide groove; 106. Second mounting slot; 107. Third mounting slot; 108. Chain ring slot; 2. Detachable block mechanism; 201. Block body; 202. Limiting square plate; 203. Handheld round rod; 204. Arc-shaped limiting plate; 205. Bottom block; 3. Drive mechanism; 301. First motor; 302. First bearing plate; 303. First transmission lead screw; 4. Preliminary pressing mechanism; 401. First transmission ball sleeve; 402. Mechanism support base plate; 403. L-shaped limiting plate; 404. Side connecting plate; 405. Mechanism limiting top plate; 406. U-shaped support plate; 407. First hydraulic cylinder; 408. Limiting guide rod 409. Sliding block; 410. Rotating support seat; 411. Rotating mounting shaft housing; 412. Second hydraulic cylinder; 413. Fixed rotating shaft; 414. L-shaped push plate; 415. Guide block; 416. Drive cylinder; 417. Push plate frame; 418. Feeding guide shell; 419. Guide rail groove; 5. Secondary extrusion mechanism; 501. Second motor; 502. Second bearing plate; 503. Second transmission screw; 504. Second transmission ball sleeve; 505. U-shaped mounting plate; 506. Side limiting strip; 507. Limiting hole; 508. Third hydraulic cylinder; 509. Fixed frame plate; 510. Extrusion roller; 511. Limiting block; 512. Limiting straight groove; 6. Limiting mechanism; 601. Fourth hydraulic cylinder; 602. Support strip plate; 603. Limiting rod; 7. Compact chain body; 8. Heating round bar. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] like Figures 1-7As shown, this embodiment of an extrusion device for compact chain production includes a device base mechanism 1. The device base mechanism 1 includes a base body 101. A limiting support frame 102 is fixedly connected between the top two sides of the base body 101. Multiple sets of limiting blocks 103 are fixedly connected to the top of the limiting support frame 102. A first mounting slot 104 and a limiting slide groove 105 corresponding to the initial extrusion mechanism 4 are opened at the rear end of the top of the base body 101. A second mounting slot 106 and a third mounting slot 107 corresponding to the secondary extrusion mechanism 5 and the limiting mechanism 6 are respectively opened at the front end of the base body 101. A chain ring slot 108 is opened at the bottom of the limiting support frame 102 of the base body 101. The limiting support frame 102 and the multiple sets of limiting blocks 103 are used to engage the detachable block mechanism 2. The first mounting slot 104 is used to install the drive mechanism 3. The limiting slide groove 105 is used to limit the movement of the initial extrusion mechanism 4. The second mounting slot 106 is used to limit the movement of the secondary extrusion mechanism 5 and the limiting mechanism 6. The installation of the secondary extrusion mechanism 5 and the third mounting slot 107 are used to install the limiting mechanism 6. Multiple detachable locking block mechanisms 2 are installed at the top center of the device base mechanism 1. The detachable locking block mechanism 2 includes a locking block body 201 set between the limiting support frame 102 and the chain ring slot 108. The top of the locking block body 201 is fixedly connected to a limiting square plate 202. The top of the limiting square plate 202 is fixedly connected to a hand-held round rod 203. Arc-shaped limiting plates 204 are fixedly connected to both sides of the locking block body 201. The bottom of the locking block body 201 is fixedly connected to a bottom locking block 205. In use, multiple detachable locking block mechanisms 2 are first locked onto multiple sets of limiting locking blocks 103 through the limiting square plate 202. At the same time, the bottom locking block 205 is locked into the groove on the bottom inner surface of the chain ring slot 108. Several integrally made compact chain rings are taken and placed between multiple detachable locking block mechanisms 2. The positioning is achieved by locking them together through the arc-shaped limiting plates 204 on both sides of the detachable locking block mechanism 2.

[0041] like Figure 1 and Figure 2 As shown, a drive mechanism 3 and a secondary extrusion mechanism 5 are respectively installed at the rear end and front end of the top of the device base mechanism 1. The drive mechanism 3 includes a first motor 301 installed inside the first mounting slot 104 and two first bearing plates 302. The output end of the first motor 301 is fixedly connected to a first transmission screw 303 between the two first bearing plates 302. The first motor 301 drives the first transmission screw 303 to rotate between the two first bearing plates 302, thereby driving the overall primary extrusion mechanism 4 to start moving.

[0042] like Figures 1-12As shown, a preliminary extrusion mechanism 4 is installed on the drive mechanism 3. The preliminary extrusion mechanism 4 includes a first transmission ball sleeve 401 installed on the first transmission lead screw 303 and two L-shaped limiting plates 403 slidably connected inside the limiting groove 105. A mechanism support base plate 402 is fixedly connected between the top of the first transmission ball sleeve 401 and the top of the two L-shaped limiting plates 403. Multiple side connecting plates 404 are fixedly connected to the top side of the mechanism support base plate 402. A mechanism limiting top plate 405 is fixedly connected to the top of the multiple side connecting plates 404. A U-shaped support plate 406 is fixedly connected to the front end of the top of the mechanism limiting top plate 405. A first hydraulic cylinder 407 is fixedly connected to the top of the U-shaped support plate 406. A first hydraulic cylinder 407 is fixedly connected to the bottom inner surface of the U-shaped support plate 406. Multiple limiting guide rods 408 are provided. A sliding block 409 is fixedly connected to the output end of the first hydraulic cylinder 407. Two rotating support seats 410 are fixedly connected to the top of the mechanism support base plate 402 and the bottom of the mechanism limiting top plate 405. Rotary mounting housings 411 are rotatably connected between the two sets of rotating support seats 410 at the top of the mechanism support base plate 402 and the bottom of the mechanism limiting top plate 405. Second hydraulic cylinders 412 are installed inside the two rotating mounting housings 411. Fixed rotating shafts 413 are rotatably connected to the output ends of the two second hydraulic cylinders 412. L-shaped push plates 414 are fixedly connected to one side of each of the two fixed rotating shafts 413. Two guide blocks 415 are fixedly connected to the top and bottom of each of the two L-shaped push plates 414. The top of the mechanism support base plate 402... A drive cylinder 416 is fixedly connected to the rear end, and a push plate frame 417 is fixedly connected to the output end of the drive cylinder 416. A feeding guide shell 418 is fixedly connected to the top of the mechanism limiting top plate 405. Two guide rail grooves 419 corresponding to the guide block 415 are opened on both sides of the top of the mechanism support base plate 402 and the bottom of the mechanism limiting top plate 405. When the two second hydraulic cylinders 412 are activated, they start to push the two L-shaped push plates 414, and move along a specific direction through the guide block 415 and the guide rail grooves 419, thereby pushing the two L-shaped push plates 414 to bend the two ends of the multiple heating rods 8. Under the drive of the two L-shaped push plates 414 and the limiting support of the sliding block 409, the multiple heating rods 8 all become U-shaped structures. The second hydraulic cylinders 412 push... During the movement, rotation occurs, and the rotating mounting housing 411 rotates between two rotating support seats 410. Then, the two second hydraulic cylinders 412 drive the two L-shaped push plates 414 to reset. At this time, the first hydraulic cylinder 407 drives the sliding block 409 to slide upward a short distance under the action of multiple limit guide rods 408. Then, the drive cylinder 416 pushes the push plate frame 417, which in turn drives the bottom U-shaped heating rod 8 to move forward until both ends of the heating rod 8 are inserted into the two integrally made compact chain rings. The mechanism limit top plate 405 has a strip-shaped through hole corresponding to the feeding guide shell 418, and the strip-shaped through hole has the same shape and structure as the heating rod 8. The heating rod 8 is engaged between the two L-shaped push plates 414 and the sliding block 409.Several red-hot heating rods 8 are added to the forward feeding guide shell 418, one fewer than the integrally manufactured compact chain ring. These heating rods 8 are stacked between the two L-shaped push plates 414 and the sliding block 409.

[0043] like Figures 1-14 As shown, the secondary extrusion mechanism 5 includes a second motor 501 and two second bearing plates 502 installed inside the second mounting slot 106. The output end of the second motor 501 is fixedly connected to a second transmission screw 503 between the two second bearing plates 502. A second transmission ball sleeve 504 is provided on the second transmission screw 503. A U-shaped mounting plate 505 is fixedly connected to the top of the second transmission ball sleeve 504. A side limiting strip 506 is fixedly connected to the front end face of the U-shaped mounting plate 505, and the side limiting strip 506 is located inside the third mounting slot 107. The sliding mechanism has two limiting holes 507 on the side limiting strip 506. A third hydraulic cylinder 508 is fixedly connected to both sides of the top of the U-shaped mounting plate 505. A fixed frame plate 509 is fixedly connected to the output end of each of the two third hydraulic cylinders 508. A pressing roller 510 is rotatably connected to each of the two fixed frame plates 509. A limiting block 511 is fixedly connected to the bottom of each of the two fixed frame plates 509. A limiting groove 512 corresponding to the limiting block 511 is opened at the top center of the U-shaped mounting plate 505. The two third hydraulic cylinders 508 begin to push the corresponding... The fixed frame plate 509 and the extrusion rollers 510 further extrude both ends of the U-shaped heating rod 8, transforming the straight heating rod 8 into a chain link structure and completing its assembly with other chain links. After the limiting mechanism 6 releases its limit, the second motor 501 drives the second transmission screw 503 to rotate between the two second bearing plates 502, thereby moving the second transmission ball sleeve 504. Simultaneously, the two third hydraulic cylinders 508 reset the fixed frame plate 509 and the extrusion rollers 510, and the drive cylinder 416 pulls the push plate frame 417 to reset, thus stacking... The heating rod 8 falls down one section, and the first motor 301 drives the first transmission screw 303 to rotate between the two first bearing plates 302, which in turn drives the first transmission ball sleeve 401 to make the overall initial extrusion mechanism 4 start to move. When the secondary extrusion mechanism 5 moves to the next point, the limiting mechanism 6 resets and completes the limiting fixation. Then, similarly, the drive cylinder 416 continues to push the push plate frame 417 to move the bottom U-shaped heating rod 8 to insert, and the extrusion is completed again by the secondary extrusion mechanism 5. This process is repeated to complete the production of part of the compact chain.

[0044] like Figures 1-15As shown, a limiting mechanism 6 is installed inside the front end of the device base mechanism 1. The limiting mechanism 6 includes two fourth hydraulic cylinders 601 installed at the bottom front end of the base body 101. The output ends of the two fourth hydraulic cylinders 601 are fixedly connected to support plates 602. Multiple limiting rods 603 are fixedly connected to the top of the support plates 602. The two fourth hydraulic cylinders 601 drive the support plates 602 and multiple limiting rods 603 to rise, which can complete the limiting support of the secondary extrusion mechanism 5. The descent of the multiple limiting rods 603 can avoid blocking the movement of the entire secondary extrusion mechanism 5. A compact chain body 7 is provided on one side of the device base mechanism 1. Multiple heating round bars 8 are placed inside the primary extrusion mechanism 4.

[0045] The working principle of this embodiment is as follows: In use, multiple detachable locking mechanisms 2 are first locked onto multiple sets of limiting locking blocks 103 by limiting square plates 202. At the same time, the bottom locking block 205 is locked into the groove on the inner surface of the bottom of the chain ring locking groove 108. Several integrally made compact chain rings are taken and placed between multiple detachable locking mechanisms 2. They are locked by the arc-shaped limiting plates 204 on both sides of the detachable locking mechanism 2. Then, several red-hot heating rods 8 are added to the feeding guide shell 418. The number is one less than the integrally made compact chain rings. Several heating rods 8 are stacked between two L-shaped push plates 414 and sliding blocks 409.

[0046] Then, the two second hydraulic cylinders 412 are activated to push the two L-shaped push plates 414, which move along a specific direction via the guide block 415 and guide rail groove 419. This pushes the two L-shaped push plates 414 to bend the ends of the multiple heating rods 8. Driven by the two L-shaped push plates 414 and limited by the sliding block 409, the multiple heating rods 8 become U-shaped structures. The second hydraulic cylinders 412 rotate during the pushing process, and rotate between the two rotating support seats 410 via the rotating mounting shaft housing 411. Then, the two second hydraulic cylinders 412 drive the two L-shaped push plates 414 to reset. At this time, the first hydraulic cylinder 407 drives the sliding block 409 to slide upward a short distance under the action of multiple limit guide rods 408. Then, the drive cylinder 416 pushes the push plate frame 417, which in turn drives the bottom U-shaped heating rod 8 to move forward until the ends of the heating rod 8 are inserted into the two integrally made compact chain rings (e.g., Figure 16Then, the two third hydraulic cylinders 508 begin to push the corresponding fixed frame plate 509 and extrusion roller 510 to extrude the two ends of the U-shaped heating rod 8 again, transforming the straight heating rod 8 into a chain link structure and completing the assembly with other chain links. Then, the fourth hydraulic cylinder 601 drives the support bar plate 602 and the limiting rod 603 to descend, releasing the limiting rod 603 from the limiting support of the side limiting bar 506. At the same time, the second motor 501 drives the second transmission screw 503 to rotate between the two second bearing plates 502, thereby driving the second transmission ball sleeve 504 to move. Simultaneously, the two third hydraulic cylinders 508 drive the fixed frame plate 509 and extrusion roller 510 to reset, and drive the cylinder 416 to pull the push plate. The frame 417 is reset, and the stacked heating rod 8 falls down one section. Then, the first motor 301 drives the first transmission screw 303 to rotate between the two first bearing plates 302, which in turn drives the first transmission ball sleeve 401 to make the overall preliminary extrusion mechanism 4 start to move. When the secondary extrusion mechanism 5 moves to the next point, the fourth hydraulic cylinder 601 pushes the support bar 602 to rise, so that the corresponding limit rod 603 is inserted into the limit hole 507 on the side limit bar 506 to complete the limit fixation. Then, similarly, the drive cylinder 416 continues to push the push plate frame 417 to move and insert the bottom U-shaped heating rod 8, and the extrusion is completed again by the secondary extrusion mechanism 5. This process is repeated to complete the production of part of the compact chain.

[0047] Then, multiple detachable locking mechanisms 2 are pulled out, and one end of a portion of the compact chain is pulled out from one side of the base body 101. The end of the integrally formed compact chain ring is slid to the position of the other integrally formed compact chain ring in the initial state. Then, the detachable locking mechanisms 2 are inserted again, with one of the detachable locking mechanisms 2 inserted into the chain ring compressed by the first heating rod 8 in the previous stage (e.g., Figure 2 Then, other integrated compact chain rings are placed between multiple detachable locking mechanisms 2, and several straight heating rods 8 are added again. Then, the extrusion process is repeated to continuously produce compact chains until the appropriate length is reached.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A compact chain extrusion device, comprising a device base mechanism (1), the device base mechanism (1) comprising a base body (101), a limiting support frame (102) fixedly connected between the top two sides of the base body (101), a plurality of limiting blocks (103) fixedly connected to the top of the limiting support frame (102), a first mounting slot (104) and a limiting slide groove (105) corresponding to a preliminary extrusion mechanism (4) being provided at the rear end of the top of the base body (101), a second mounting slot (106) and a third mounting slot (107) corresponding to a secondary extrusion mechanism (5) and a limiting mechanism (6) being provided at the front end of the base body (101), and a chain ring slot (108) being provided at the bottom of the limiting support frame (102), characterized in that: The device base mechanism (1) has multiple detachable locking mechanisms (2) installed at the top center. The rear end and front end of the top of the device base mechanism (1) are respectively equipped with a drive mechanism (3) and a secondary extrusion mechanism (5). The drive mechanism (3) includes a first motor (301) installed inside the first mounting slot (104) and two first bearing plates (302). The output end of the first motor (301) is fixedly connected to a first transmission screw (303) between the two first bearing plates (302). A preliminary extrusion mechanism (4) is installed on the drive mechanism (3). The preliminary extrusion mechanism (4) includes a first transmission ball sleeve (401) installed on the first transmission lead screw (303) and two L-shaped limiting plates (403) slidably connected inside the limiting groove (105). A mechanism support base plate (402) is fixedly connected between the top of the first transmission ball sleeve (401) and the top of the two L-shaped limiting plates (403). A plurality of side connecting plates (404) are fixedly connected to the top side of the mechanism support base plate (402). A mechanism limiting top plate (405) is fixedly connected to the top of the plurality of side connecting plates (404). The top of the mechanism limiting top plate (405) is fixedly connected to the top of the mechanism limiting top plate (405). A U-shaped support plate (406) is fixedly connected to the front end of the mechanism. A first hydraulic cylinder (407) is fixedly connected to the top of the U-shaped support plate (406). Multiple limiting guide rods (408) are fixedly connected to the bottom inner surface of the U-shaped support plate (406). A sliding block (409) is fixedly connected to the output end of the first hydraulic cylinder (407). Two rotating support seats (410) are fixedly connected to the top of the mechanism support base plate (402) and the bottom of the mechanism limiting top plate (405). Rotary mounting shaft housings (411) are rotatably connected between the two sets of rotating support seats (410) at the top of the mechanism support base plate (402) and the bottom of the mechanism limiting top plate (405). The rotating mounting housing (411) houses a second hydraulic cylinder (412). The output ends of both second hydraulic cylinders (412) are rotatably connected to fixed shafts (413). One side of each of the two fixed shafts (413) is fixedly connected to an L-shaped push plate (414). The top and bottom of each of the two L-shaped push plates (414) are fixedly connected to two guide blocks (415). A drive cylinder (416) is fixedly connected to the rear end of the top of the mechanism support base plate (402). The output end of the drive cylinder (416) is fixedly connected to a push plate frame (417). The top of the mechanism limiting top plate (405) is fixedly connected to a feeding guide shell (418). The machine... The top of the support base plate (402) and the bottom sides of the mechanism limiting top plate (405) are provided with two guide rail grooves (419) corresponding to the guide block (415). The mechanism limiting top plate (405) is provided with a strip-shaped through hole corresponding to the feeding guide shell (418). The strip-shaped through hole and the heating rod (8) have the same external structure. The heating rod (8) is engaged between two L-shaped push plates (414) and a sliding block (409). The front end of the device base mechanism (1) is equipped with a limiting mechanism (6). A compact chain body (7) is provided on one side of the device base mechanism (1). Multiple heating rods (8) are placed inside the preliminary extrusion mechanism (4).

2. The extrusion apparatus for producing compact chains according to claim 1, characterized in that, The detachable locking mechanism (2) includes a locking body (201) disposed between a limiting support frame (102) and a chain ring locking groove (108). A limiting square plate (202) is fixedly connected to the top of the locking body (201), and a hand-held round rod (203) is fixedly connected to the top of the limiting square plate (202). Arc-shaped limiting plates (204) are fixedly connected to both sides of the locking body (201), and a bottom locking block (205) is fixedly connected to the bottom of the locking body (201).

3. The extrusion apparatus for producing compact chains according to claim 1, characterized in that, The secondary extrusion mechanism (5) includes a second motor (501) installed inside the second mounting slot (106) and two second bearing plates (502). The output end of the second motor (501) is fixedly connected to a second transmission screw (503) between the two second bearing plates (502). A second transmission ball sleeve (504) is provided on the second transmission screw (503). A U-shaped mounting plate (505) is fixedly connected to the top of the second transmission ball sleeve (504). A side limiting strip (506) is fixedly connected to the front end face of the U-shaped mounting plate (505), and the side limiting strip (506) is located at the third mounting slot. The card slot (107) slides within the card slot. Two limiting holes (507) are provided on the side limiting strip (506). A third hydraulic cylinder (508) is fixedly connected to both sides of the top of the U-shaped mounting plate (505). A fixed frame plate (509) is fixedly connected to the output end of the two third hydraulic cylinders (508). A pressing roller (510) is rotatably connected to the two fixed frame plates (509). A limiting round block (511) is fixedly connected to the bottom of the two fixed frame plates (509). A limiting straight groove (512) corresponding to the limiting round block (511) is provided at the top center of the U-shaped mounting plate (505).

4. The extrusion apparatus for producing compact chains according to claim 1, characterized in that, The limiting mechanism (6) includes two fourth hydraulic cylinders (601) installed at the bottom front end of the base body (101). The output ends of the two fourth hydraulic cylinders (601) are fixedly connected to a support plate (602), and the top of the support plate (602) is fixedly connected to a plurality of limiting rods (603).

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