An extruder die locking device

Abstract

The application relates to the technical field of extruders, and discloses an extruder die locking device, which comprises a supporting locking mechanism, the surface of the supporting locking mechanism is provided with an opening and closing transmission mechanism, the surface of the opening and closing transmission mechanism is provided with a supporting gear mechanism, a locking and falling prevention mechanism is arranged between the supporting gear mechanism and the supporting locking mechanism, the surface of the opening and closing transmission mechanism is provided with a transmission pressure receiving mechanism, and the surface of the transmission pressure receiving mechanism is provided with a centering limiting mechanism. The extruder die locking device is provided with the supporting locking mechanism, the opening and closing transmission mechanism, the supporting gear mechanism, the locking and falling prevention mechanism, the transmission pressure receiving mechanism and the centering limiting mechanism, the opening and closing transmission mechanism can drive the centering limiting mechanism to open and close and center during use, frequent adjustment of the die is avoided during each replacement and installation, other tools are not needed to assist in replacement and disassembly, and the disassembly and assembly convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of extruder technology, specifically to an extruder die locking device. Background Technology

[0002] Extruders are a type of plastic machinery that originated in the 18th century. Extruders can be classified into right-angle extruders and angled extruders based on the angle between the material flow direction at the die head and the screw centerline. Screw extruders rely on the pressure and shearing force generated by the rotation of the screw to fully plasticize and uniformly mix the material, which is then formed through a die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and less common multi-screw extruders and screwless extruders.

[0003] Different dies need to be installed at the output end of the extruder according to different production needs. Most extruders use bolts to fix the dies, which requires frequent adjustment each time they are replaced to prevent them from being eccentric. Moreover, special tools are needed to assist in replacement and disassembly, which is very inconvenient. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an extruder die head locking device, which solves the problems mentioned in the background.

[0005] This invention provides the following technical solution: an extruder die locking device, comprising: a support locking mechanism, an opening and closing transmission mechanism mounted on the surface of the support locking mechanism, a support stop mechanism mounted on the surface of the opening and closing transmission mechanism, an unlocking and anti-falling mechanism provided between the support stop mechanism and the support locking mechanism, a transmission pressure mechanism provided on the surface of the opening and closing transmission mechanism, and a centering and limiting mechanism provided on the surface of the transmission pressure mechanism.

[0006] Preferably, the support locking mechanism includes a fixed base plate, a docking support block, a locking support block, a storage groove, a positioning head, and a positioning spring. The docking support block and the locking support block are both fixedly connected to the inner wall of the fixed base plate, and there are three docking support blocks. The storage groove is embedded in the upper surface of the locking support block. The positioning head is slidably connected to the inner wall of the storage groove. The positioning spring is movably installed between the storage groove and the positioning head.

[0007] Preferably, the support locking mechanism further includes an upper connecting block, a locking threaded cylinder, a locking threaded post, and a locking handwheel. The upper connecting block is fixedly connected to the top of the locking support block, the locking threaded cylinder is fixedly connected to the inside of the upper connecting block, the locking threaded post is threadedly connected to the inside of the locking threaded cylinder, and the locking handwheel is fixedly connected to the top of the locking threaded post.

[0008] Preferably, the opening and closing transmission mechanism includes a first transmission threaded column, a second transmission threaded column, an opening limit block, a driving sprocket, a driven sprocket, a synchronous chain, a lever, a locking gear, and a locking wheel groove. The first transmission threaded column is rotatably connected between two docking support blocks via bearings, and the second transmission threaded column is rotatably connected between the docking support block and the locking support block via bearings. Both the first and second transmission threaded columns are bidirectional helical threaded columns. The opening limit blocks are integrally disposed on the surfaces of both ends of the first and second transmission threaded columns, respectively. The driving sprocket is fixedly installed at one end of the first transmission threaded column, and the driven sprocket is fixedly installed at one end of the second transmission threaded column. The synchronous chain is installed between the driving sprocket and the driven sprocket. The lever is fixedly connected to the end of the first transmission threaded column away from the driving sprocket. The locking gear is fixedly connected to the end of the second transmission threaded column away from the driven sprocket. The locking wheel groove is formed on the surface of the locking gear, and the locking gear is movably engaged with the positioning head through the locking wheel groove, and the locking gear is movably connected to the locking threaded column through the locking wheel groove.

[0009] Preferably, the support stop mechanism includes a closing limit ring, a support rotating ring, a buffer washer, and a support sliding hole. The closing limit ring is fixedly sleeved on the surface of the middle of the first transmission threaded column and the surface of the middle of the second transmission threaded column, respectively. The support rotating ring is rotatably connected to the surface of the closing limit ring. The buffer washer is fixedly connected to both ends of the closing limit ring, and the support sliding hole is opened through both sides of the support rotating ring.

[0010] Preferably, the unlocking and anti-falling mechanism includes a connecting seat, a clearance groove, a guide post, an anti-falling block, and a tension spring. The connecting seat is fixedly connected to the surface of the fixed seat plate, and there are two connecting seats. The clearance groove is opened on one side of the connecting seat. The guide post is slidably connected to the inner wall of the connecting seat, and the surface of the guide post is slidably connected to the inner wall of the supporting sliding hole. The anti-falling block is fixedly connected to one end of the guide post, and the tension spring is fixedly connected between the clearance groove and the anti-falling block.

[0011] Preferably, the unlocking and anti-fall mechanism further includes a lower top block, a lower pressing slope, and a lower docking slope. The lower top block is fixedly connected to one end of the lower guide post, and the lower pressing slope and the lower docking slope are integrally formed on the surface of the lower top block.

[0012] Preferably, the unlocking and anti-fall mechanism further includes an upper top block, an upper pressing slope, an anti-disengagement hook, and an upper docking slope. The upper top block is fixedly connected to one end of the upper guide post. The upper pressing slope is integrally disposed on the surface of the upper top block. The anti-disengagement hook is integrally disposed on one side of the upper top block. The upper docking slope is integrally disposed on the surface of the anti-disengagement hook.

[0013] Preferably, the transmission pressure-bearing mechanism includes an opening and closing threaded cylinder, an annular groove, and a retaining ring. The opening and closing threaded cylinders are respectively threaded to the surfaces of the first and second transmission threaded columns, and there are four opening and closing threaded cylinders. Every two opening and closing threaded cylinders form a group, and the two groups of opening and closing threaded cylinders are respectively located on the surfaces of the first and second transmission threaded columns. Each group of opening and closing threaded cylinders is relatively distributed. The annular groove is formed on the surface of the opening and closing threaded cylinder, and the retaining ring is movably engaged with the inner wall of the annular groove. The material of the opening and closing threaded cylinder is copper.

[0014] Preferably, the centering and limiting mechanism includes a clamping frame, a centering cutter head, a limiting inclined surface, an anti-detachment head, an anti-detachment groove, a connecting threaded groove, a connecting bolt, a mating threaded hole, and a mating bolt. The clamping frame is fixedly installed on the surface of the opening and closing threaded cylinder through the mating threaded hole and the mating bolt. There are two clamping frames, and the two clamping frames are distributed opposite to each other. The centering cutter head is fixedly installed on the inner wall of the clamping frame through the connecting threaded groove and the connecting bolt. The limiting inclined surface is set on the inner wall of the centering cutter head. The anti-detachment head is integrally set on the surface of the centering cutter head. The anti-detachment groove is opened on the inner wall of the clamping frame, and the surface of the anti-detachment head is slidably connected to the inner wall of the anti-detachment groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This extruder die locking device, through its supporting locking mechanism, opening and closing transmission mechanism, supporting stop mechanism, unlocking and anti-fall mechanism, transmission pressure mechanism, and centering limit mechanism, enables the centering limit mechanism to open, close, and center during use via the opening and closing transmission mechanism. This avoids frequent adjustments to the die head during each replacement and installation, and eliminates the need for additional tools during replacement and disassembly, thus improving the convenience of assembly and disassembly.

[0017] This extruder die locking device, through its fixed base plate, docking support block, locking support block, storage groove, positioning head, positioning spring, upper connecting block, locking threaded cylinder, locking threaded column, and locking handwheel, can provide locking when the pull rod is rotated and unfolded, preventing the pull rod from rotating due to its own weight. At the same time, after the pull rod is rotated and closed, the locking threaded column forms a lock, preventing the centering and limiting mechanism from easily unfolding due to the rotation of the pull rod.

[0018] This extruder die head locking device, through the configuration of a first transmission threaded column, a second transmission threaded column, an opening limit block, a driving sprocket, a driven sprocket, a synchronous chain, a pull rod, a locking gear, and a locking wheel groove, can drive the clamping frame to move by rotating the pull rod, thereby achieving opening and closing. This ensures that the clamping frame can open and close synchronously from left to right, facilitating the centering of the centering cutter head to the die head.

[0019] The extruder die locking device, through the setting of a limiting ring, a support rotating ring, a buffer washer, and a support sliding hole, can form a blocking buffer between the first and second transmission threaded columns, and at the same time facilitate the support of the guide column.

[0020] This extruder die head locking device, through its connecting seat, clearance groove, guide post, anti-detachment block, tension spring, lower top block, lower extrusion slope, lower docking slope, upper top block, upper extrusion slope, anti-detachment hook, and upper docking slope, can compress and hook the die head after the clamping frame and centering cutter head are unfolded, preventing the die head from falling off easily and facilitating its subsequent removal by hand.

[0021] This extruder die locking device, through its designed opening and closing threaded cylinder, annular groove, and retaining ring, reduces the impact during opening and closing by utilizing the softer properties of the copper opening and closing threaded cylinder compared to other metal alloys.

[0022] This extruder die head locking device uses a clamping frame, a centering cutter head, a limiting inclined surface, an anti-detachment head, an anti-detachment groove, a connecting threaded groove, a connecting bolt, a mating threaded hole, and a mating bolt to fix the centering cutter head. This allows for easy replacement of the centering cutter head according to different die head specifications, thus improving the applicability of the device. Attached Figure Description

[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 structure when the mold head of the present invention is connected;

[0025] Figure 3 This is a schematic diagram of the exploded structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the centering and limiting mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the internal exploded structure of the clamping frame of the present invention;

[0028] Figure 6 This is a schematic diagram of the exploded structure at the opening and closing threaded cylinder position of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure at the location of the first transmission threaded post of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure at the location of the second transmission threaded column of the present invention;

[0031] Figure 9 This is a schematic diagram of the exploded structure at the location of the upper connecting block in this invention;

[0032] Figure 10This is a schematic diagram of the structure at the position of the top block of the present invention;

[0033] Figure 11 This is a schematic diagram of the structure at the position of the lower top block of the present invention.

[0034] In the diagram: 101. Fixed base plate; 102. Connecting support block; 103. Locking support block; 104. Storage slot; 105. Positioning head; 106. Positioning spring; 107. Upper connecting block; 108. Locking threaded cylinder; 109. Locking threaded post; 110. Locking handwheel; 201. First transmission threaded post; 202. Second transmission threaded post; 203. Opening limit block; 204. Driving sprocket; 205. Driven sprocket; 206. Synchronous chain; 207. Actuating lever; 208. Locking gear; 209. Locking wheel groove; 301. Closing limit ring; 302. Support rotating ring; 303. Buffer washer; 304. Supporting sliding hole; 401, connecting seat; 402, clearance groove; 403, guide post; 404, anti-detachment block; 405, tension spring; 406, lower top block; 407, lower extrusion slope; 408, lower mating slope; 409, upper top block; 410, upper extrusion slope; 411, anti-detachment hook; 412, upper mating slope; 501, opening and closing threaded cylinder; 502, annular groove; 503, retaining ring; 601, clamping frame; 602, centering cutter head; 603, limiting slope; 604, anti-detachment head; 605, anti-detachment groove; 606, connecting threaded groove; 607, connecting bolt; 608, mating threaded hole; 609, mating bolt. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0036] Please see Figure 1-11 An extruder die locking device includes: a support locking mechanism; an opening and closing transmission mechanism mounted on the surface of the support locking mechanism; a support stop mechanism mounted on the surface of the opening and closing transmission mechanism; an unlocking anti-fall mechanism provided between the support stop mechanism and the support locking mechanism; a transmission pressure mechanism provided on the surface of the opening and closing transmission mechanism; and a centering limit mechanism provided on the surface of the transmission pressure mechanism. Through the provided support locking mechanism, opening and closing transmission mechanism, support stop mechanism, unlocking anti-fall mechanism, transmission pressure mechanism, and centering limit mechanism, the centering limit mechanism can be driven to open, close, and center during use via the opening and closing transmission mechanism. This avoids frequent adjustments to the die head during each replacement and installation, and eliminates the need for additional tools during replacement and disassembly, thus improving the ease of assembly and disassembly.

[0037] The support locking mechanism includes a fixed base plate 101, a docking support block 102, a locking support block 103, a storage groove 104, a positioning head 105, and a positioning spring 106. The docking support block 102 and the locking support block 103 are both fixedly connected to the inner wall of the fixed base plate 101, and there are three docking support blocks 102. The storage groove 104 is embedded in the upper surface of the locking support block 103. The positioning head 105 is slidably connected to the inner wall of the storage groove 104. The positioning spring 106 is movably installed between the storage groove 104 and the positioning head 105.

[0038] The locking mechanism includes an upper connecting block 107, a locking threaded cylinder 108, a locking threaded post 109, and a locking handwheel 110. The upper connecting block 107 is fixedly connected to the top of the locking support block 103. The locking threaded cylinder 108 is fixedly connected to the inside of the upper connecting block 107. The locking threaded post 109 is threadedly connected to the inside of the locking threaded cylinder 108. The locking handwheel 110 is fixedly connected to the top of the locking threaded post 109. The locking mechanism is connected via a fixed base plate 101 and a docking support block 107. 02. The locking support block 103, the storage groove 104, the positioning head 105, the positioning spring 106, the upper connecting block 107, the locking threaded cylinder 108, the locking threaded post 109, and the locking handwheel 110 can provide locking when the lever 207 is rotated and unfolded, preventing the lever 207 from rotating due to its own weight. At the same time, after the lever 207 is rotated and closed, the locking threaded post 109 forms a lock, preventing the centering and limiting mechanism from easily unfolding due to the rotation of the lever 207.

[0039] The opening and closing transmission mechanism includes a first transmission threaded post 201, a second transmission threaded post 202, an opening limit block 203, a driving sprocket 204, a driven sprocket 205, a synchronous chain 206, a lever 207, a locking gear 208, and a locking wheel groove 209. The first transmission threaded post 201 is rotatably connected between two docking support blocks 102 via bearings, and the second transmission threaded post 202 is rotatably connected between the docking support block 102 and the locking support block 103 via bearings. Both the first transmission threaded post 201 and the second transmission threaded post 202 are bidirectional helical threaded posts. The opening limit block 203 is integrally disposed on the surfaces at both ends of the first transmission threaded post 201 and the surfaces at both ends of the second transmission threaded post 202. The driving sprocket 204 is fixedly installed at one end of the first transmission threaded post 201, and the driven sprocket 205 is fixedly installed at one end of the second transmission threaded post 202. The synchronous chain 206 is installed between the driving sprocket 204 and the driven sprocket 205. Between the sprockets 205, the actuating lever 207 is fixedly connected to the end of the first transmission threaded post 201 away from the driving sprocket 204, and the locking gear 208 is fixedly connected to the end of the second transmission threaded post 202 away from the driven sprocket 205. A locking gear groove 209 is formed on the surface of the locking gear 208, and the locking gear 208 is movably engaged with the positioning head 105 through the locking gear groove 209, and the locking gear 208 is also movably engaged with the locking threaded post 109 through the locking gear groove 209. The dynamic connection, through the first transmission threaded post 201, the second transmission threaded post 202, the opening limit block 203, the driving sprocket 204, the driven sprocket 205, the synchronous chain 206, the actuating pull rod 207, the locking gear 208, and the locking wheel groove 209, can drive the clamping frame 601 to move by rotating the actuating pull rod 207, thereby realizing the opening and closing, ensuring that the clamping frame 601 can be opened and closed synchronously from left to right, and facilitating the centering of the centering cutter head 602 to the die head.

[0040] The supporting stop mechanism includes a limiting ring 301, a supporting rotating ring 302, a buffer washer 303, and a supporting sliding hole 304. The limiting ring 301 is fixedly sleeved on the surface between the first transmission threaded post 201 and the second transmission threaded post 202. The supporting rotating ring 302 is rotatably connected to the surface of the limiting ring 301. The buffer washer 303 is fixedly connected to both ends of the limiting ring 301. The supporting sliding hole 304 is opened through both sides of the supporting rotating ring 302. Through the setting of the limiting ring 301, the supporting rotating ring 302, the buffer washer 303, and the supporting sliding hole 304, a blocking buffer can be formed between the first transmission threaded post 201 and the second transmission threaded post 202, and at the same time, it is convenient to support the guide post 403.

[0041] The unlocking and anti-fall mechanism includes a connecting seat 401, a clearance groove 402, a guide post 403, an anti-fall block 404, and a tension spring 405. The connecting seat 401 is fixedly connected to the surface of the fixed seat plate 101, and there are two connecting seats 401. The clearance groove 402 is opened on one side of the connecting seat 401. The guide post 403 is slidably connected to the inner wall of the connecting seat 401, and the surface of the guide post 403 is slidably connected to the inner wall of the support sliding hole 304. The anti-fall block 404 is fixedly connected to one end of the guide post 403. The tension spring 405 is fixedly connected between the clearance groove 402 and the anti-fall block 404.

[0042] The unlocking and anti-fall mechanism also includes a lower top block 406, a lower extrusion slope 407, and a lower docking slope 408. The lower top block 406 is fixedly connected to one end of the lower guide post 403, and the lower extrusion slope 407 and the lower docking slope 408 are integrally set on the surface of the lower top block 406.

[0043] The unlocking and anti-fall mechanism also includes an upper top block 409, an upper extrusion slope 410, an anti-fall hook 411, and an upper docking slope 412. The upper top block 409 is fixedly connected to one end of the upper guide post 403. The upper extrusion slope 410 is integrally set on the surface of the upper top block 409. The anti-fall hook 411 is integrally set on one side of the upper top block 409. The upper docking slope 412 is integrally set on the surface of the anti-fall hook 411. Through the connection seat 401, the clearance groove 402, the guide post 403, the anti-fall block 404, the tension spring 405, the lower top block 406, the lower extrusion slope 407, the lower docking slope 408, the upper top block 409, the upper extrusion slope 410, the anti-fall hook 411, and the upper docking slope 412, the clamping frame 601 and the centering cutter head 602 can form an extrusion and hook on the mold head after they are unfolded, preventing the mold head from falling easily and making it easy to remove it by hand.

[0044] The transmission pressure-bearing mechanism includes a threaded cylinder 501, an annular groove 502, and a retaining ring 503. The threaded cylinders 501 are threadedly connected to the surfaces of the first transmission threaded post 201 and the second transmission threaded post 202, respectively. There are four threaded cylinders 501, arranged in pairs, with each pair forming a group. The two groups of threaded cylinders 501 are located on the surfaces of the first and second transmission threaded posts 201, respectively, and are relatively distributed. The annular groove 502 is formed on the surface of the threaded cylinder 501, and the retaining ring 503 is movably engaged with the inner wall of the annular groove 502. Material 1 is copper. With the addition of a threaded cylinder 501, annular groove 502, and retaining ring 503, the softer nature of the copper threaded cylinder 501 reduces the impact during opening and closing compared to other metal alloys. Pure copper is a soft metal with a reddish-orange metallic luster when freshly cut, and its elemental form is purplish-red. It has good ductility, high thermal and electrical conductivity, making it the most commonly used material in cables and electrical and electronic components. It can also be used as a building material and can be composed of many alloys. Copper alloys have excellent mechanical properties and very low resistivity, among which bronze and brass are the most important. In addition, copper is also a durable metal that can be recycled multiple times without losing its mechanical properties.

[0045] The centering and limiting mechanism includes a clamping frame 601, a centering cutter head 602, a limiting inclined surface 603, an anti-disengagement head 604, an anti-disengagement groove 605, a connecting threaded groove 606, a connecting bolt 607, a mating threaded hole 608, and a mating bolt 609. The clamping frame 601 is fixedly installed on the surface of the opening and closing threaded cylinder 501 through the mating threaded hole 608 and the mating bolt 609. There are two clamping frames 601, and they are distributed opposite to each other. The centering cutter head 602 is fixedly installed on the inner wall of the clamping frame 601 through the connecting threaded groove 606 and the connecting bolt 607. The limiting inclined surface 603 is located on the centering cutter head 602. The anti-detachment head 604 is integrally set on the surface of the centering cutter head 602. The anti-detachment groove 605 is opened on the inner wall of the clamping frame 601, and the surface of the anti-detachment head 604 is slidably connected to the inner wall of the anti-detachment groove 605. The centering cutter head 602 is fixed by the clamping frame 601, the centering cutter head 602, the limiting inclined surface 603, the anti-detachment head 604, the anti-detachment groove 605, the connecting thread groove 606, the connecting bolt 607, the mating thread hole 608, and the mating bolt 609. The centering cutter head 602 is fixed by the connecting thread groove 606 and the connecting bolt 607, which facilitates the replacement of the centering cutter head 602 according to different specifications of die heads and improves the applicability of the device.

[0046] Working principle: When in use, pull the lever 207 outward, which drives the first transmission threaded column 201 to rotate. When the first transmission threaded column 201 rotates, it drives the synchronous chain 206 through the driving sprocket 204, which causes the driven sprocket 205 to rotate, thereby realizing the synchronous rotation of the second transmission threaded column 202 and the first transmission threaded column 201. When the second transmission threaded column 202 and the first transmission threaded column 201 rotate, they will push the opening and closing threaded cylinder 501 on the surface to move to both ends through the threads, thereby driving the two clamping frames 601 on the surface to unfold.

[0047] After the clamping frame 601 is unfolded, the pull rod 207 is released. At this time, the locking wheel groove 209 is pressed to achieve positioning. The die head is aligned with the opening between the two centering cutter heads 602, and then the die head is pressed. The die head squeezes the surface of the lower mating slope 408 and the surface of the upper mating slope 412, thereby causing the lower ejector block 406 and the upper ejector block 409 to retract. Then the die head is squeezed into the lower ejector block 406 and the upper ejector block 409 and squeezed by them. At this time, the anti-disengagement hook 411 forms a hook on the upper part of the die head, and the lower ejector block 406 and the two centering cutter heads 602 form a support on the lower part of the die head, thereby preventing it from falling easily. Then the pull rod 207 is pulled inward. The pull rod 207 drives the first transmission threaded column 201 to rotate in the opposite direction. When the first transmission threaded column 201 rotates in the opposite direction, it actively... The sprocket 204 drives the synchronous chain 206 to rotate the driven sprocket 205, thereby realizing the synchronous rotation of the second transmission threaded column 202 and the first transmission threaded column 201. When the second transmission threaded column 202 and the first transmission threaded column 201 rotate, they will push the opening and closing threaded cylinder 501 on the surface to move towards the center through the thread, thereby driving the two clamping frames 601 on the surface to close. When the two clamping frames 601 close, they will squeeze the die head through the centering cutter head 602, causing the centering cutter head 602 to gradually move towards the center until the centering cutter head 602 closes to the end, and the die head also reaches the center. Then, the locking handwheel 110 is turned to make the locking threaded column 109 rotate inward and squeeze into the locking wheel groove 209 to form a lock.

[0048] When removing the die head, pull the lever 207 outward. The lever 207 drives the first transmission threaded column 201 to rotate. When the first transmission threaded column 201 rotates, it drives the synchronous chain 206 through the driving sprocket 204, causing the driven sprocket 205 to rotate. This achieves synchronous rotation of the second transmission threaded column 202 and the first transmission threaded column 201. When the second transmission threaded column 202 and the first transmission threaded column 201 rotate, they will push the opening and closing threaded cylinder 501 on the surface to move to both ends through the threads, thereby causing the two clamping frames 601 on the surface to unfold. At this time, the anti-disengagement hook 411 forms a hook on the top of the die head, and the lower top block 406 and the two centering cutter heads 602 provide support for the bottom of the die head, thereby preventing it from falling easily. Then, the die head is lifted upward with the contact point between the die head and the upper mating inclined surface 412 as the axis, so that the lower part of the die head squeezes the lower extrusion inclined surface 407, thereby causing the die head to be dislodged from the extrusion of the lower top block 406. Then, the die head is removed.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extruder die locking device characterized by, include: A support locking mechanism is provided, an opening and closing transmission mechanism is mounted on the surface of the support locking mechanism, a support stop mechanism is mounted on the surface of the opening and closing transmission mechanism, an unlocking and anti-falling mechanism is provided between the support stop mechanism and the support locking mechanism, a transmission pressure mechanism is provided on the surface of the opening and closing transmission mechanism, and a centering and limiting mechanism is provided on the surface of the transmission pressure mechanism. The support locking mechanism includes a fixed base plate (101); The opening and closing transmission mechanism includes a first transmission threaded column (201), a second transmission threaded column (202), an opening limit block (203), a driving sprocket (204), a driven sprocket (205), a synchronous chain (206), a pull rod (207), a locking gear (208), and a locking wheel groove (209). The supporting stop mechanism includes a closing limit ring (301), a supporting rotating ring (302), a buffer washer (303), and a supporting sliding hole (304). The closing limit ring (301) is fixedly sleeved on the surface between the first transmission threaded column (201) and the surface between the second transmission threaded column (202). The supporting rotating ring (302) is rotatably connected to the surface of the closing limit ring (301). The buffer washer (303) is fixedly connected to both ends of the closing limit ring (301). The supporting sliding hole (304) is opened through both sides of the supporting rotating ring (302). The unlocking and anti-fall mechanism includes a connecting seat (401), a clearance groove (402), a guide post (403), an anti-fall block (404), and a tension spring (405). The connecting seat (401) is fixedly connected to the surface of the fixed seat plate (101), and there are two connecting seats (401). The clearance groove (402) is opened on one side of the connecting seat (401). The guide post (403) is slidably connected to the inner wall of the connecting seat (401), and the surface of the guide post (403) is slidably connected to the inner wall of the support sliding hole (304). The anti-fall block (404) is fixedly connected to one end of the guide post (403). The tension spring (405) is fixedly connected between the clearance groove (402) and the anti-fall block (404). The unlocking and anti-fall mechanism also includes a lower top block (406), a lower extrusion slope (407), and a lower docking slope (408). The lower top block (406) is fixedly connected to one end of the lower guide post (403). The lower extrusion slope (407) and the lower docking slope (408) are integrally disposed on the surface of the lower top block (406). The unlocking and anti-fall mechanism also includes an upper top block (409), an upper pressing slope (410), an anti-disengagement hook (411), and an upper docking slope (412). The upper top block (409) is fixedly connected to one end of the upper guide post (403). The upper pressing slope (410) is integrally disposed on the surface of the upper top block (409). The anti-disengagement hook (411) is integrally disposed on one side of the upper top block (409). The upper docking slope (412) is integrally disposed on the surface of the anti-disengagement hook (411). The centering and limiting mechanism includes a clamping frame (601), a centering cutter head (602), and a limiting inclined surface (603). There are two clamping frames (601), which are arranged opposite to each other. The centering cutter head (602) is fixedly installed on the inner wall of the clamping frame (601) via a connecting threaded groove (606) and a connecting bolt (607). The limiting inclined surface (603) is located on the inner wall of the centering cutter head (602). By using the first transmission threaded column (201), the second transmission threaded column (202), the opening limit block (203), the driving sprocket (204), the driven sprocket (205), the synchronous chain (206), the actuating lever (207), the locking gear (208), and the locking wheel groove (209), the clamping frame (601) can be driven to move by the rotation of the actuating lever (207), thereby realizing the opening and closing, and ensuring that the clamping frame (601) can be opened and closed synchronously from left to right; By using the connecting seat (401), clearance groove (402), guide post (403), anti-detachment block (404), tension spring (405), lower top block (406), lower extrusion slope (407), lower docking slope (408), upper top block (409), upper extrusion slope (410), anti-detachment hook (411) and upper docking slope (412), the die head can be extruded and hooked after the clamping frame (601) and centering cutter head (602) are unfolded.

2. The extruder die locking device according to claim 1, characterized in that, The support locking mechanism also includes a docking support block (102), a locking support block (103), a storage groove (104), a positioning head (105), and a positioning spring (106). The docking support block (102) and the locking support block (103) are both fixedly connected to the inner wall of the fixed base plate (101), and there are three docking support blocks (102). The storage groove (104) is embedded in the upper surface of the locking support block (103). The positioning head (105) is slidably connected to the inner wall of the storage groove (104). The positioning spring (106) is movably installed between the storage groove (104) and the positioning head (105).

3. The extruder die locking device according to claim 2, characterized in that, The support locking mechanism also includes an upper connecting block (107), a locking threaded cylinder (108), a locking threaded post (109), and a locking handwheel (110). The upper connecting block (107) is fixedly connected to the top of the locking support block (103). The locking threaded cylinder (108) is fixedly connected to the inside of the upper connecting block (107). The locking threaded post (109) is threadedly connected to the inside of the locking threaded cylinder (108). The locking handwheel (110) is fixedly connected to the top of the locking threaded post (109).

4. The extruder die locking device according to claim 2, characterized in that, The first drive threaded column (201) is rotatably connected between two docking support blocks (102) via bearings. The second drive threaded column (202) is rotatably connected between the docking support block (102) and the locking support block (103) via bearings. Both the first drive threaded column (201) and the second drive threaded column (202) are bidirectional helical threaded columns. The opening limit block (203) is integrally disposed on the surfaces at both ends of the first drive threaded column (201) and the surfaces at both ends of the second drive threaded column (202). The driving sprocket (204) is fixedly installed at one end of the first drive threaded column (201), and the driven sprocket (205) is fixedly installed at the second drive threaded column. At one end of the column (202), the synchronous chain (206) is installed between the driving sprocket (204) and the driven sprocket (205). The actuating lever (207) is fixedly connected to the end of the first transmission threaded column (201) away from the driving sprocket (204). The locking gear (208) is fixedly connected to the end of the second transmission threaded column (202) away from the driven sprocket (205). The locking wheel groove (209) is opened on the surface of the locking gear (208), and the locking gear (208) is movably engaged with the positioning head (105) through the locking wheel groove (209). The locking gear (208) is movably connected with the locking threaded column (109) through the locking wheel groove (209).

5. The extruder die locking device according to claim 3, characterized in that, The transmission pressure-bearing mechanism includes a threaded cylinder (501), an annular groove (502), and a retaining ring (503). The threaded cylinder (501) is threadedly connected to the surface of the first transmission threaded post (201) and the surface of the second transmission threaded post (202), respectively. There are four threaded cylinders (501), and each pair of threaded cylinders (501) forms a group. The two groups of threaded cylinders (501) are located on the surface of the first transmission threaded post (201) and the surface of the second transmission threaded post (202), respectively. Each group of threaded cylinders (501) is relatively distributed. The annular groove (502) is opened on the surface of the threaded cylinder (501). The retaining ring (503) is movably engaged with the inner wall of the annular groove (502). The material of the threaded cylinder (501) is copper.

6. The extruder die locking device according to claim 5, characterized in that, The centering and limiting mechanism also includes an anti-detachment head (604), an anti-detachment groove (605), a connecting threaded groove (606), a connecting bolt (607), a mating threaded hole (608), and a mating bolt (609). The clamping frame (601) is fixedly installed on the surface of the opening and closing threaded cylinder (501) through the mating threaded hole (608) and the mating bolt (609). The anti-detachment head (604) is integrally set on the surface of the centering cutter head (602). The anti-detachment groove (605) is opened on the inner wall of the clamping frame (601), and the surface of the anti-detachment head (604) is slidably connected to the inner wall of the anti-detachment groove (605).

Images