Automatic clamping and shaping device

Abstract

Disclosed in the present invention is an automatic clamping device, comprising a frame, a conveying chain being provided on the frame, a plurality of groups of clamping molds being fixedly laid on the conveying chain, a clamping mechanism being provided above the conveying chain, the clamping mechanism being fixedly connected to the frame, and the clamping mechanism being adapted to the clamping molds; The clamping mold comprises a fixed block and a movable block, two ends of the fixed block are fixedly connected to the conveying chain, a sliding rod is arranged on one side of the fixed block, the movable block is sleeved on the sliding rod to form a sliding connection, a plurality of curved grooves are arranged on one side of the fixed block opposite to the movable block, a bearing plate is arranged below the fixed block and the movable block, and a locking mechanism is arranged between the fixed block and the movable block. In the present invention, by pressing the movable block and the fixed block in the horizontal direction, the product can be squeezed in the curved grooves on the movable block and the fixed block without affecting the working life of the conveying chain. The product is mechanically continuously pressed by the locking mechanism to achieve pressure-retaining shaping, thereby greatly improving the processing efficiency.

Description

An automatic clamping device Technical Field

[0001] This invention relates to the field of automated machinery technology, and in particular to an automatic clamping device. Background Technology

[0002] Automated machinery is widely used in industry, agriculture, military, scientific research, transportation, commerce, medical care, services, and households. The adoption of automation technology can liberate people from heavy physical labor, some mental labor, and harsh or dangerous working environments, greatly improving labor productivity.

[0003] Automated machinery organically combines traditional manufacturing technologies with modern information technology, management technology, automation technology, and systems engineering technology. Through computer technology, it organically integrates and optimizes the organization, operation, management, and technology related to a company's products throughout their entire lifecycle. This achieves informatization, intelligence, and integrated optimization throughout the product lifecycle, resulting in faster product launches, better service, higher quality, and lower costs, thereby improving the company's flexibility, robustness, and agility.

[0004] Existing automated pressing and shaping equipment on the market all use hydraulic mechanisms to press product raw materials into molds for shaping. For example, patent publication number CN117814493A discloses "An Automated Continuous Seed Pressing Equipment." One end of the mounting frame has a material feeding mechanism, and below the output end of the material feeding mechanism are seed steaming mechanisms spaced apart. Above both ends of the seed steaming mechanism are seed transfer mechanisms, which are slidably mounted on the top of the mounting frame. The output end of the seed steaming mechanism is fitted with a pressing and turning mechanism, and below the pressing and turning mechanism is a transport processing mechanism, which operates in the opposite direction to the seed steaming mechanism. In this structure, when the pressing and turning mechanism performs seed pressing and shaping, the downward pressure is directly transmitted to the seed transfer mechanism, significantly reducing the working life of the seed transfer mechanism. Furthermore, if long-term pressure holding is required, the seed transfer mechanism must be stopped, consuming a significant amount of time for pressure holding, greatly delaying the processing progress and resulting in low processing efficiency. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is:

[0006] 1. Solve the problem that existing automated pressure-type shaping equipment transmits downward pressure to the conveying mechanism, resulting in a short service life of the conveying mechanism;

[0007] 2. To solve the problem of low processing efficiency caused by the need to stop the conveyor mechanism during the pressure holding process in existing automated pressure-setting equipment.

[0008] The technical solution of this invention is:

[0009] The present invention provides an automatic clamping device, including a frame, a conveyor chain on the frame, a plurality of clamping molds fixedly laid on the conveyor chain, a clamping mechanism above the conveyor chain, the clamping mechanism being fixedly connected to the frame, and the clamping mechanism being adapted to the clamping molds;

[0010] The clamping mold includes a fixed block and a movable block. The two ends of the fixed block are fixedly connected to the conveyor chain. A slide rod is provided on one side of the fixed block. The movable block is sleeved on the slide rod to form a sliding connection. Multiple curved grooves for clamping are provided on the opposite side of the fixed block and the movable block. A bearing plate is provided below the fixed block and the movable block. A locking mechanism is provided between the fixed block and the movable block.

[0011] Preferably, the locking mechanism includes a lever and a locking lever. One end of the locking lever is rotatably connected to the end face of the movable block, and the other end of the locking lever is provided with a locking groove. Both ends of the fixed block are provided with locking protrusions that are adapted to the locking groove. One end of the lever is rotatably connected to both ends of the fixed block, and the middle section of the lever is rotatably connected to the middle section of the locking lever.

[0012] Preferably, the middle section of the locking rod is provided with a guide groove, and the middle section of the lever is provided with a bolt, which passes through the guide groove and can rotate and slide in the guide groove.

[0013] Preferably, the support plate includes a first support plate and a second support plate, one end of the first support plate is fixedly connected to the fixed block, and the other end of the first support plate faces the movable block; one end of the second support plate is fixedly connected to the movable block, and the other end of the second support plate faces the fixed block; the first support plate and the second support plate are arranged alternately.

[0014] Preferably, the combined width of the first and second bearing plates is adapted to the length of the curved groove.

[0015] Preferably, the first and second bearing plates are provided with a limiting step at one end that is suspended, and the lower surfaces of the fixed block and the movable block are provided with a step groove for the limiting step to pass through.

[0016] Preferably, the first and second bearing plates have an upward-facing unloading protrusion at one of their suspended ends, and the lower surfaces of the fixed block and the movable block have guide grooves for the unloading protrusion to pass through.

[0017] Preferably, a limiting baffle is provided at the end of the slide rod away from the fixed block.

[0018] Preferably, a discharge rod is provided below the conveyor chain. The discharge rod is arranged horizontally, with one end fixedly connected to the frame and the other end suspended to abut against the lever. A hopper is provided below the discharge rod.

[0019] Preferably, the hopper includes an inner hopper and an outer hopper, with a ventilation chamber formed between the inner and outer hoppers, an air inlet on the outer hopper, and an air outlet at the bottom of the hopper.

[0020] Preferably, the hopper further includes a connecting flange and a bottom flange. The upper ends of the inner hopper and the outer hopper are fixedly connected to one side of the connecting flange, and the connection between the inner hopper, the outer hopper and the connecting flange is sealed. The outer side wall of the outer hopper is provided with an air inlet. The outer edge of the bottom flange is connected to and sealed with the lower end of the outer hopper. The inner edge of the bottom flange has a gap with the lower end of the inner hopper to form an air outlet.

[0021] Preferably, the inner hopper is provided with multiple first air guide plates on the side near the ventilation chamber; the multiple first air guide plates are horizontally arranged and distributed in a gap-like manner around the side wall of the inner hopper.

[0022] Preferably, the bottom flange is provided with multiple second air guide plates on the side near the ventilation chamber; the multiple second air guide plates are vertically arranged and radially distributed around the holes in the center of the bottom flange.

[0023] Preferably, a handrail is provided on the outside of the connecting flange, and the handrails are symmetrically arranged.

[0024] Preferably, both the inner and outer buckets are thin-walled stainless steel bodies.

[0025] Preferably, the clamping mechanism includes a lifting cylinder, a clamping electric cylinder, a clamping fixed plate, and a clamping movable plate. The lifting cylinder is arranged vertically, and its cylinder body is fixedly connected to the frame. The rod of the lifting cylinder is connected to the clamping fixed plate. The clamping electric cylinder is arranged horizontally, and its cylinder body is fixedly connected to the frame. The rod of the clamping electric cylinder is connected to the clamping movable plate. The clamping fixed plate and the clamping movable plate are slidably connected. A fixed claw is provided below the clamping fixed plate, and a movable claw is provided below the clamping movable plate. The fixed claw and the movable claw cooperate with each other to clamp the clamping mold.

[0026] Preferably, the clamping movable plate is provided with at least one vertical slot along the horizontal direction, the rod of the clamping electric cylinder is connected to the clamping movable plate through the vertical slot, the clamping fixed plate is provided with a slide rail, and the clamping movable plate is slidably connected to the clamping fixed plate through the slide rail.

[0027] Preferably, the clamping movable plate is provided with multiple reinforcing ribs, and a reinforcing steel pipe is provided above the reinforcing ribs, with the reinforcing steel pipe perpendicular to the reinforcing ribs.

[0028] Preferably, a pre-pushing mechanism is provided above the conveyor chain, the pre-pushing mechanism is located upstream of the clamping mechanism, the pre-pushing mechanism includes a pre-pushing cylinder and a pre-pushing tooth plate, the cylinder body of the pre-pushing cylinder is fixedly connected to the frame, the cylinder body of the pre-pushing cylinder is connected to the pre-pushing tooth plate, and the lower surface of the pre-pushing tooth plate is provided with pre-pushing teeth.

[0029] Preferably, the pre-push mechanism is further provided with an adjustment assembly, which includes an adjustment motor, a lead screw, and a mounting plate. The adjustment motor is fixedly connected to the frame, the output shaft of the adjustment motor is connected to the lead screw, the lead screw is rotatably connected to the frame, a lead screw nut is sleeved on the lead screw, the mounting plate is fixedly connected to the lead screw nut, the pre-push cylinder is fixedly connected to the mounting plate, and a positioning detector is provided on the frame, which is electrically connected to the pre-push mechanism.

[0030] Preferably, a flattening mechanism is provided above the conveyor chain. The flattening mechanism is located upstream of the pre-pushing mechanism. The flattening mechanism includes a mounting rod, which is horizontally arranged and fixedly connected to the frame. At least one set of rollers is provided below the mounting rod, and the rotation direction of the rollers is consistent with the travel direction of the conveyor chain.

[0031] The present invention also provides an automatic clamping process applied to the above-mentioned automatic clamping device, comprising the following steps:

[0032] S1. Feeding: The product raw materials are placed into the clamping mold by manual or / and automatic feeding equipment;

[0033] S2. Flattening: Start the conveyor chain to drive the clamping mold through the flattening mechanism to achieve a flattened state of the clamping mold.

[0034] S3. Pre-push: The pre-push mechanism adjusts the gap between the clamping molds.

[0035] S4. Clamping and shaping: The clamping mechanism clamps the mold and simultaneously triggers the self-locking function of the mold to clamp and shape the product.

[0036] S5. Heating: The clamping mold in a self-locking state is transported to the heating chamber for heating via a conveyor chain.

[0037] S6. Unloading: The conveyor chain transports the clamping mold carrying the product to the unloading position. The locking mechanism is released by the cooperation of the lever and the unloading rod. The product falls into the hopper by gravity, completing the unloading.

[0038] S7. Cooling and shaping: Cooling gas is introduced into the hopper while unloading to assist in cooling and shaping the product.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] 1. This invention proposes an automatic clamping device for shaping product seed material. By changing the direction of the shaping pressure from the conventional vertical direction to the horizontal direction, the structural design difficulty of the automated conveying is effectively simplified, and the working life of the automated conveying line is greatly improved.

[0041] 2. This invention proposes an automatic clamping device, including a clamping mold, which can mechanically and continuously apply pressure to the product through a locking mechanism to achieve pressure holding and shaping. It can achieve pressure holding and shaping while transporting the raw material, avoiding the drawback of existing pressure shaping equipment that requires stopping the conveyor belt during pressure holding, greatly saving processing and transportation time and improving processing efficiency.

[0042] The detailed structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0043] Figure 1 is a schematic diagram of the overall appearance of the automatic clamping device of the present invention;

[0044] Figure 2 is a schematic diagram of the overall appearance of the automatic clamping device of the present invention.

[0045] Figure 3 is a side view of one of the automatic clamping devices of the present invention;

[0046] Figure 4 is a second side view of the automatic clamping device of the present invention;

[0047] Figure 5 is a schematic diagram of the clamping mold of the present invention;

[0048] Figure 6 is a magnified view of a portion of Figure 5A;

[0049] Figure 7 is a schematic diagram of the locking mechanism of the present invention;

[0050] Figure 8 is a schematic diagram of the locking rod of the present invention;

[0051] Figure 9 is a schematic diagram of one aspect of the clamping mechanism of the present invention;

[0052] Figure 10 is a partial cross-sectional schematic diagram of the clamping mechanism of the present invention;

[0053] Figure 11 is a second structural schematic diagram of the clamping mechanism of the present invention;

[0054] Figure 12 is a schematic diagram of the structure of the hopper of the present invention;

[0055] Figure 13 is a partial cross-sectional schematic diagram of the hopper of the present invention;

[0056] Figure 14 is a magnified view of a portion of Figure 13B;

[0057] Figure 15 is a schematic diagram of the pre-pushing mechanism of the present invention;

[0058] Figure 16 is a cross-sectional schematic diagram of the pre-pushing mechanism of the present invention;

[0059] Figure 17 is a schematic diagram of the flattening mechanism of the present invention;

[0060] Figure 18 is a side view of the flattening mechanism of the present invention;

[0061] Component names and corresponding serial numbers:

[0062] 1. Rack; 2. Conveyor chain;

[0063] 3. Clamping mold; 31. Fixed block; 32. Movable block; 33. Sliding rod; 34. Curved groove; 35. First bearing plate; 36. Second bearing plate; 37. Locking mechanism; 371. Lever; 372. Locking rod; 373. Locking groove; 374. Locking protrusion; 375. Guide slot; 38. Unloading protrusion;

[0064] 4. Clamping mechanism; 41. Lifting cylinder; 42. Clamping electric cylinder; 43. Clamping fixed plate; 44. Clamping movable plate; 45. Fixed claw; 46. Movable claw; 47. Vertical slot; 48. Slide rail; 49. Reinforcing rib; 410. Reinforcing steel pipe;

[0065] 5. Pre-push mechanism; 51. Pre-push cylinder; 52. Pre-push gear plate; 53. Pre-push gear; 54. Adjustment motor; 55. Lead screw; 56. Lead screw nut; 57. Mounting plate; 58. Positioning detector;

[0066] 6. Flattening mechanism; 61. Mounting rod; 62. Roller;

[0067] 7. Heating chamber;

[0068] 8. Unloading rod;

[0069] 9. Hopper; 91. Inner hopper; 92. Outer hopper; 93. Connecting flange; 94. Ventilation chamber; 95. Air inlet; 96. Bottom flange; 97. Air outlet; 98. First air guide plate; 99. Second air guide plate; 910. Handrail;

[0070] 10. Control terminal. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0072] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by a person skilled in the art to which this disclosure pertains. The words "comprising" or "including" and similar terms used in this disclosure mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The words "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The vertical and horizontal arrangements mentioned herein are all relative to the horizontal plane.

[0073] As shown in Figures 1-4: This invention provides an automatic clamping device, including a frame 1, a conveyor chain 2 on the frame 1, multiple sets of clamping molds 3 fixedly laid on the conveyor chain 2, a clamping mechanism 4 above the conveyor chain 2, the clamping mechanism 4 being fixedly connected to the frame 1, and the clamping mechanism 4 being adapted to the clamping molds 3; the clamping molds 3 rotate cyclically with the conveyor chain 2, realizing the purpose of automatically conveying the product raw materials to various functional areas, while making the clamping molds 3 reusable.

[0074] As shown in Figures 5 and 6, the clamping mold 3 includes a fixed block 31 and a movable block 32. The fixed block 31 is fixedly connected to the conveyor chain 2 at both ends. A sliding rod 33 is provided on one side of the fixed block 31, and the movable block 32 is fitted onto the sliding rod 33 to form a sliding connection. Multiple curved grooves 34 for clamping are provided on the opposite sides of the fixed block 31 and the movable block 32. A support plate is provided below the fixed block 31 and the movable block 32, and a locking mechanism 37 is provided between the fixed block 31 and the movable block 32. The raw material can be placed on the support plate. By applying pressure to the movable block 32 towards the fixed block 31, the raw material can be squeezed in the curved grooves 34 on the movable block 32 and the fixed block 31. Simultaneously, the locking mechanisms 37 at both ends of the movable block 32 can lock the movable block 32 and the fixed block 31, keeping the raw material in a continuously compressed state, effectively reducing the occurrence of product rebound.

[0075] Furthermore, to ensure better centering when placing the product seed material, the supporting plate in this embodiment includes a first supporting plate 35 and a second supporting plate 36. One end of the first supporting plate 35 is fixedly connected to the fixed block 31, and the other end of the first supporting plate 35 faces the movable block 32. One end of the second supporting plate 36 is fixedly connected to the movable block 32, and the other end of the second supporting plate 36 faces the fixed block 31. The first supporting plate 35 and the second supporting plate 36 are arranged alternately. The combined width of the first supporting plate 35 and the second supporting plate 36 is adapted to the length of the curved groove 34. The suspended ends of the first supporting plate 35 and the second supporting plate 36 are provided with upward limiting steps. The lower surfaces of the fixed block 31 and the movable block 32 are provided with stepped grooves for the limiting steps to pass through. When the movable block 32 and the fixed block 31 move relative to each other, the product seed material is always supported by the first supporting plate 35 and the second supporting plate 36, and the stepped grooves allow for better centering when placing the product seed material.

[0076] Furthermore, the first support plate 35 and the second support plate 36 are provided with unloading protrusions 38 at their suspended ends, and the lower surfaces of the fixed block 31 and the movable block 32 are provided with guide grooves for the unloading protrusions 38 to pass through. When the movable block 32 is disengaged, the unloading protrusions 38 on the first support plate 35 can push the product material tightly embedded in the curved groove 34 of the movable block 32 back onto the support plate, and the unloading protrusions 38 on the second support plate 36 can push the product material tightly embedded in the curved groove 34 of the fixed block 31 back onto the support plate. This process is fully automatic and requires no manual operation, greatly improving the efficiency of production and processing.

[0077] Furthermore, a limiting baffle is provided at the end of the slide rod 33 away from the fixed block 31, which can effectively prevent the movable block 32 from separating from the slide rod 33.

[0078] Specifically, a discharge rod 8 is provided below the conveyor chain 2. The discharge rod 8 is horizontally arranged, with one end fixedly connected to the frame 1 and the other end suspended to abut against the lever 371. A hopper 9 is provided below the discharge rod 8. The discharge rod 8 is positioned in the traveling direction of the clamping mold 3. When the clamping mold 3, which is in a self-locking state, is conveyed to the installation position of the discharge rod 8 by the conveyor chain 2, the discharge rod 8 will block the forward direction of the lever 371. When the clamping mold 3 continues to move forward, the lever 371 will contact the discharge rod 8 and rotate, causing the locking rod 372 to disengage from the locking protrusion 374, thus completing automatic unlocking. At this time, the opening of the clamping mold 3 is facing downwards, and the product material in the curved groove 34 will fall into the hopper 9 by gravity, completing automatic unloading.

[0079] As shown in Figure 7, specifically, the locking mechanism 37 includes a lever 371 and a locking lever 372. One end of the locking lever 372 is rotatably connected to the end face of the movable block 32, and the other end of the locking lever 372 is provided with a locking groove 373. Both ends of the fixed block 31 are provided with locking protrusions 374 that are adapted to the locking grooves 373. One end of the lever 371 is rotatably connected to both ends of the fixed block 31, and the middle section of the lever 371 is rotatably connected to the middle section of the locking lever 372. When the movable block 32 is pressed, the locking groove 373 on the locking lever 372 automatically engages with the locking protrusion 374 under the influence of the movable block 32, causing the locking protrusion 374 to embed into the locking groove 373, thus completing the locking.

[0080] As shown in Figure 8, specifically, the middle section of the locking rod 372 is provided with a guide slot 375, and the middle section of the lever 371 is provided with a bolt. The bolt passes through the guide slot 375 and can rotate and slide within the guide slot 375. When the product material is compressed, the rebound force of the product material can be used to apply a preload to the locking rod 372 and the locking protrusion 374, making the locking effect of the locking rod 372 and the locking protrusion 374 more stable. During this process, the movable block 32 needs some movement. By setting the guide slot 375, the lever 371 can compensate for this movement within the guide slot 375, preventing the movement of the movable block 32 in the locked state from being affected by the length limitation of the lever 371.

[0081] As shown in Figures 12-14, specifically, the hopper 9 includes an inner hopper 91, an outer hopper 92, and a connecting flange 93. The upper ends of the inner hopper 91 and the outer hopper 92 are fixedly connected to one side of the connecting flange 93, and the connection between the inner hopper 91, the outer hopper 92, and the connecting flange 93 is sealed. A ventilation chamber 94 is formed between the inner hopper 91 and the outer hopper 92. An air inlet 95 is provided on the outer side wall of the outer hopper 92. It also includes a bottom flange 96. The outer edge of the bottom flange 96 is connected to and sealed to the lower end of the outer hopper 92. The inner edge of the bottom flange 96 leaves a gap with the lower end of the inner hopper 91 to form an air outlet 97. When the raw material is unloaded and falls into the hopper 9, cold air can be directly introduced into the ventilation chamber 94 from the air inlet 95. The continuous cold air can keep the hopper 9 at a low temperature. The raw material falls into the hopper 9 and comes into contact with the hopper 9 to achieve heat exchange and transfer, thus achieving the initial cooling of the raw material. Furthermore, when the raw material falls from the hopper 9 into the collection container or onto the conveyor belt of the next process, the air outlet 97 below the hopper 9 will continuously blow air onto the raw material to achieve rapid cooling and shaping of the raw material.

[0082] Specifically, the inner hopper 91 is provided with multiple first air guide plates 98 on the side near the ventilation chamber 94; the multiple first air guide plates 98 are horizontally arranged and distributed intermittently around the side wall of the inner hopper 91. The first air guide plates 98 can disperse and guide the air entering the ventilation chamber from the single air inlet 95 to fill the entire ventilation chamber, which facilitates better transfer of heat brought by the product seed material to the hopper 9.

[0083] Specifically, the bottom flange 96 is provided with multiple second air guide plates 99 on the side near the ventilation chamber 94; the multiple second air guide plates are vertically arranged and radially distributed around the holes in the center of the bottom flange 96. This can guide the cold air in the ventilation chamber 94 vertically to the air outlet 97, preventing the cold air from being discharged from the air outlet 97 in various directions, thus affecting the cooling efficiency.

[0084] Specifically, a handrail 910 is provided on the outside of the connecting flange 93. The handrails 910 are symmetrically arranged to facilitate workers to take the hopper 9.

[0085] Specifically, both the inner bucket 91 and the outer bucket 92 are thin-walled stainless steel bodies, which have many advantages such as low cost, good thermal conductivity, and high cost-effectiveness in rust prevention.

[0086] The clamping mechanism 4 of the present invention can be any commercially available device capable of clamping. In this embodiment, the clamping mechanism 4 is specifically as shown in Figures 9-11. The clamping mechanism 4 includes a lifting cylinder 41, a clamping electric cylinder 42, a clamping fixed plate 43, and a clamping movable plate 44. The clamping fixed plate 43 is provided with a fixed claw 45, and the clamping movable plate 44 is provided with a movable claw 46. The lifting cylinder 41 is vertically erected, and the cylinder body of the lifting cylinder 41 is fixedly connected to the frame 1. The rod body of the lifting cylinder 41 is fixedly connected to the clamping fixed plate 43. The cylinder body of the clamping electric cylinder 42 is horizontally arranged, and the cylinder body of the clamping electric cylinder 42 is fixedly connected to the frame 1. The movable claw 46 and the fixed claw 45 cooperate with each other to clamp the clamping mold 3. When the clamping mold 3 moves directly below the clamping mechanism 4, the lifting cylinder 41 will drive the clamping fixing plate 43 to descend, and the fixing claw 45 will extend into the gap between the clamping molds 3 and abut against the fixing block 31; the movable claw 46 will also extend into the gap between the clamping molds 3 and abut against the movable block 32; the clamping electric cylinder 42 will drive the clamping movable plate 44 to move on the clamping fixing plate 43, so that the movable claw 46 and the fixing claw 45 clamp and press against the movable block 32 and the fixing block 31, and trigger the self-locking of the clamping mold 3 to achieve the clamping of the product seed material.

[0087] The clamping movable plate 44 is provided with at least one vertical slot 47 in the horizontal direction. The rod of the clamping electric cylinder 42 is connected to the clamping movable plate 44 through the vertical slot 47, so that when the clamping movable plate 44 moves up and down with the lifting cylinder 41, the rod of the clamping electric cylinder 42 can be adjusted in the vertical slot 47. The clamping fixed plate 43 is provided with a slide rail 48. The clamping movable plate 44 is slidably connected to the clamping fixed plate 43 through the slide rail 48. The clamping fixed plate 43 is provided with a through hole for the movable claw 46 to pass through.

[0088] Specifically, the clamping movable plate 44 is provided with multiple reinforcing ribs 49, and a reinforcing steel pipe 410 is provided above the reinforcing ribs 49, with the reinforcing steel pipe 410 perpendicular to the reinforcing ribs 49. The reinforcing steel pipe 410 and the reinforcing ribs 49 improve the rigidity of the clamping movable plate 44 and prevent the clamping movable plate 44 from bending and deforming during long-term operation.

[0089] Specifically, in actual operation, the conveyor chain 2 vibrates during operation, which causes changes in the distance between the clamping molds 3. To ensure that the movable claw 46 and fixed claw 45 of the clamping mechanism 4 can smoothly extend into the gap between the clamping molds 3, as shown in Figures 15 and 16, the present invention provides a pre-pushing mechanism 5 above the conveyor chain 2. The pre-pushing mechanism 5 is located upstream of the clamping mechanism 4. The pre-pushing mechanism 5 includes at least one pre-pushing cylinder 51 and a pre-pushing toothed plate 52. The cylinder body of the pre-pushing cylinder 51 is fixedly connected to the frame 1, and the cylinder body of the pre-pushing cylinder 51 is connected to the pre-pushing toothed plate 52. The lower surface of the pre-pushing toothed plate 52 is provided with pre-pushing teeth 53. The pre-push mechanism 5 is also equipped with an adjustment assembly, which includes an adjustment motor 54, a lead screw 55, and a mounting plate 57. The adjustment motor 54 is fixedly connected to the frame 1, and the output shaft of the adjustment motor 54 is connected to the lead screw 55. The lead screw 55 is rotatably connected to the frame 1, and a lead screw nut 56 is sleeved on the lead screw 55. The mounting plate 57 is fixedly connected to the lead screw nut 56. The pre-push cylinder 51 is fixedly connected to the mounting plate 57. A positioning detector 58 is provided on the frame 1, and the positioning detector 58 is connected to the pre-push cylinder 51. The mechanism 5 is electrically connected; when the clamping mold 3 moves to the bottom of the pre-push mechanism 5, the positioning detector 58 will perform preliminary positioning and transmit the signal to the control terminal 10. The control terminal 10 controls the adjustment motor 54 to operate so that the pre-push teeth 53 under the pre-push tooth plate 52 can be aligned with the gap between the clamping molds 3. Then, the pre-push tooth plate 52 is pressed down by the pre-push cylinder 51, and the clamping mold 3 is moved by the adjustment motor 54 to complete the pre-push operation, so that the gap between the clamping molds 3 is maintained at a width that allows the movable claw 46 and the fixed claw 45 to extend smoothly.

[0090] It is worth noting that the positioning monitor can be any infrared detector, ultraviolet detector, or other detector that can perform the same function, available on the market. The control terminal 10 is a commonly used control device such as a PC or PLC.

[0091] Specifically, in actual operation, the clamping mold 3 circulates with the conveyor chain 2. When the clamping mold 3 changes from a bend in the conveyor chain 2 to a horizontal position, it retains a certain angle, resulting in a tilted posture. To adjust the posture of the clamping mold 3, in this embodiment, a flattening mechanism 6 is provided above the conveyor chain 2, as shown in Figures 17 and 18. The flattening mechanism 6 is located upstream of the pre-pushing mechanism 5. The flattening mechanism 6 includes a mounting rod 61, which is horizontally arranged and fixedly connected to the frame 1. At least one set of rollers 62 is provided below the mounting rod 61, and in this embodiment, there are three sets. The rotation direction of the rollers 62 is consistent with the travel direction of the conveyor chain 2. When the clamping mold 3, which is in a tilted posture, passes through the flattening mechanism 6, it will be rolled layer by layer by the three sets of rollers 62, gradually reducing the tilt angle of the clamping mold 3 until it is in a horizontal posture.

[0092] Specifically, a heating chamber 7 is provided downstream of the clamping mechanism 4, and a heating source is provided in the heating chamber 7. In this embodiment, the heating source is high-temperature steam introduced into the heating chamber 7. The part of the transmission chain downstream of the clamping mechanism 4 is placed in the heating chamber 7. When the clamping mold 3 is clamped into a locked state by the clamping mechanism 4, the clamping mold 3 is transported to the heating chamber 7 by the conveyor chain 2 for heating, thereby achieving the effect of high-temperature pressure holding, enhancing the shaping effect of the product seed material, avoiding the drawback of existing automated shaping and setting equipment that needs to stop rotating during pressure holding, and greatly improving processing efficiency.

[0093] The product seed material is a product sheet material obtained by cutting an ellipsoidal high-cellulose lignin product material into two halves.

[0094] The present invention also provides an automatic clamping process applied to the above-mentioned automatic clamping device, comprising the following steps:

[0095] S1. Feeding: The product raw materials are placed into the clamp mold 3 by manual or / and automatic feeding equipment;

[0096] S2. Flattening: The conveyor chain 2 is started to drive the clamping mold 3 through the three sets of rollers 62 of the flattening mechanism 6 to gradually achieve the flatness of the clamping mold 3.

[0097] S3, Pre-push: The pre-push mechanism 5 adjusts the gap between the clamping molds 3;

[0098] S4. Clamping and shaping: The clamping mechanism 4 clamps the clamping mold 3, and the clamping mechanism 4 simultaneously triggers the self-locking function of the clamping mold 3 to clamp and shape the product.

[0099] S5. Heating: The clamp mold 3, which is in a self-locking state, is conveyed to the heating chamber 7 by the conveyor chain 2 for heating.

[0100] S6. Unloading: The conveyor chain 2 transports the clamp mold 3 carrying the product to the unloading position. The locking state of the locking mechanism 37 is released by the cooperation of the lever 371 and the unloading rod 8. The product falls into the hopper 9 by gravity, completing the unloading.

[0101] S7. Cooling and shaping: Cooling gas is introduced into hopper 9 while unloading to assist in cooling and shaping the product.

[0102] The working principle and process of this embodiment: The operator can manually or use existing automatic feeding equipment to put the product seed material into the curved groove 34 of the clamping mold 3. The conveyor chain 2 drives the clamping mold 3 to move forward. The clamping mold 3 is adjusted in posture by the flattening mechanism 6 and the pre-pushing mechanism 5. When the clamping mold 3 carrying the product seed material moves to the bottom of the clamping mechanism 4, it stops. After the clamping mechanism 4 descends, it applies horizontal pressure to the movable block 32 and the fixed block 31 of the clamping mold 3 through the movable claw 46 and the fixed claw 45. This causes the movable block 32 to move towards the fixed block 31, thereby applying horizontal pressure to the product seed material. At the same time, the locking mechanism 37 between the movable block 32 and the fixed block 31 is triggered, so that the movable block 32 and the fixed block 31 can continue to apply horizontal pressure to the product seed material for shaping. Subsequently, the conveyor chain 2 will transport the clamping mold 3, which is in the locked state, to the bottom. The product material is heated in the heating chamber 7 to improve its deformation capacity. After heating, the conveyor chain 2 continues to transport the clamping mold 3 to the unloading area. When the lever 371 of the locking mechanism 37 on the end face of the clamping mold 3 contacts the unloading rod 8, the lever 371 is rotated by the unloading rod 8 as the conveyor chain 2 moves forward, and the locking mechanism 37 is unlocked. The movable block 32 gradually moves away from the fixed block 31 as the rotation angle of the lever 371 increases. The unloading protrusion 38 on the first bearing plate 35 and the second bearing plate 36 will push the product material off the groove wall of the curved groove 34. The product material will fall into the hopper 9 by gravity, completing the unloading. At the same time, cold air will be continuously circulated into the hopper 9 to quickly cool the hopper 9 and the product material, which will facilitate the shaping of the product material and reduce the rebound of the product material. The clamping mold 3 continues to move with the conveyor chain 2 and begins the next clamping processing cycle.

[0103] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the claims of the present invention.

Claims

1. An automatic clamping device, characterized in that: The device is used to shape the product sheet after cutting the ellipsoidal high cellulose lignin product material into two halves. It includes a frame (1), a conveyor chain (2) on the frame (1), multiple sets of clamping molds (3) fixedly laid on the conveyor chain (2), a clamping mechanism (4) above the conveyor chain (2), the clamping mechanism (4) is fixedly connected to the frame (1), and the clamping mechanism (4) is adapted to the clamping mold (3). The clamping mold (3) includes a fixed block (31) and a movable block (32). The two ends of the fixed block (31) are fixedly connected to the conveyor chain (2). A slide rod (33) is provided on one side of the fixed block (31). The movable block (32) is sleeved on the slide rod (33) to form a sliding connection. Multiple curved grooves (34) for clamping are provided on the opposite side of the fixed block (31) and the movable block (32). A bearing plate is provided below the fixed block (31) and the movable block (32). A locking mechanism (37) is provided between the fixed block (31) and the movable block (32). The clamping mechanism (4) includes a lifting cylinder (41), a clamping electric cylinder (42), a clamping fixed plate (43), and a clamping movable plate (44). The lifting cylinder (41) is arranged vertically, and the cylinder body of the lifting cylinder (41) is fixedly connected to the frame (1). The rod of the lifting cylinder (41) is connected to the clamping fixed plate (43). The clamping electric cylinder (42) is arranged horizontally, and the cylinder body of the clamping electric cylinder (42) is fixedly connected to the frame (1). The rod of the clamping electric cylinder (42) is connected to the clamping movable plate (44). The clamping fixed plate (43) and the clamping movable plate (44) are slidably connected. The lower surface of the clamping fixed plate (43) is provided with a fixed claw (45), and the lower surface of the clamping movable plate (44) is provided with a movable claw (46). The fixed claw (45) and the movable claw (46) cooperate with each other to clamp the clamping mold (3).

2. The automatic clamping device according to claim 1, characterized in that: The locking mechanism (37) includes a lever (371) and a locking lever (372). One end of the locking lever (372) is rotatably connected to the end face of the movable block (32), and the other end of the locking lever (372) is provided with a locking groove (373). Both ends of the fixed block (31) are provided with locking protrusions (374) that are adapted to the locking grooves (373). One end of the lever (371) is rotatably connected to both ends of the fixed block (31), and the middle section of the lever (371) is rotatably connected to the middle section of the locking lever (372).

3. An automatic clamping device according to claim 2, characterized in that: Below the conveyor chain (2) is a discharge rod (8), which is arranged horizontally. One end of the discharge rod (8) is fixedly connected to the frame (1), and the other end is suspended. Below the discharge rod (8) is a hopper (9).

4. An automatic clamping device according to claim 3, characterized in that: The hopper (9) includes an inner hopper (91) and an outer hopper (92), a ventilation chamber (94) is formed between the inner hopper (91) and the outer hopper (92), an air inlet (95) is provided on the outer hopper (92), and an air outlet (97) is provided below the hopper (9).

5. An automatic clamping device according to claim 4, characterized in that: The hopper (9) also includes a connecting flange (93) and a bottom flange (96). The upper ends of the inner hopper (91) and the outer hopper (92) are fixedly connected to one side of the connecting flange (93), and the connection between the inner hopper (91), the outer hopper (92) and the connecting flange (93) is sealed. The outer side wall of the outer hopper (92) is provided with an air inlet (95). The outer edge of the bottom flange (96) is connected to and sealed with the lower end of the outer hopper (92). The inner edge of the bottom flange (96) is left with a gap from the lower end of the inner hopper (91) to form an air outlet (97).

6. An automatic clamping device according to claim 1, characterized in that: The clamping movable plate (44) is provided with at least one vertical slot (47) in the horizontal direction. The rod of the clamping electric cylinder (42) is connected to the clamping movable plate (44) through the vertical slot (47). The clamping fixed plate (43) is provided with a slide rail (48). The clamping movable plate (44) is slidably connected to the clamping fixed plate (43) through the slide rail (48).

7. An automatic clamping device according to any one of claims 1 or 6, characterized in that: The clamping movable plate (44) is provided with multiple reinforcing ribs (49), and a reinforcing steel pipe (410) is provided above the reinforcing ribs (49). The reinforcing steel pipe (410) is perpendicular to the reinforcing ribs (49).

8. An automatic clamping device according to claim 1, characterized in that: A pre-push mechanism (5) is provided above the conveyor chain (2). The pre-push mechanism (5) is located upstream of the clamping mechanism (4). The pre-push mechanism (5) includes a pre-push cylinder (51) and a pre-push tooth plate (52). The cylinder body of the pre-push cylinder (51) is fixedly connected to the frame (1). The cylinder body of the pre-push cylinder (51) is connected to the pre-push tooth plate (52). The lower surface of the pre-push tooth plate (52) is provided with pre-push teeth (53).

9. An automatic clamping device according to claim 8, characterized in that: The pre-push mechanism (5) is also provided with an adjustment component, which includes an adjustment motor (54), a lead screw (55) and a mounting plate (57). The adjustment motor (54) is fixedly connected to the frame (1). The output shaft of the adjustment motor (54) is connected to the lead screw (55). The lead screw (55) is rotatably connected to the frame (1). A lead screw nut (56) is sleeved on the lead screw (55). The mounting plate (57) is fixedly connected to the lead screw nut (56). The pre-push cylinder (51) is fixedly connected to the mounting plate (57). A positioning detector (58) is provided on the frame (1). The positioning detector (58) is electrically connected to the pre-push mechanism (5).

10. An automatic clamping device according to claim 8, characterized in that: A flattening mechanism (6) is also provided above the conveyor chain (2). The flattening mechanism (6) is located upstream of the pre-pushing mechanism (5). The flattening mechanism (6) includes a mounting rod (61). The mounting rod (61) is arranged horizontally and fixedly connected to the frame (1). At least one set of rollers (62) is provided below the mounting rod (61). The rotation direction of the rollers (62) is consistent with the travel direction of the conveyor chain (2).

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