Automatic clamping device

Abstract

The invention discloses an automatic clamping device which comprises a rack, a conveying chain is arranged on the rack, a plurality of sets of clamping molds are fixedly laid on the conveying chain, a clamping mechanism is arranged above the conveying chain, the clamping mechanism is fixedly connected with the rack, and the clamping mechanism is matched with the clamping molds. The clamping type mold comprises a fixed block and a movable block, the two ends of the fixed block are fixedly connected with the conveying chain, a sliding rod is arranged on one side of the fixed block, the movable block is arranged on the sliding rod in a sleeving mode to form sliding connection, and a plurality of curved surface grooves are formed in the opposite sides of the fixed block and the movable block. And a locking mechanism is arranged between the fixed block and the movable block. Pressure is applied to the movable block and the fixed block in the horizontal direction, a product can be extruded in curved surface grooves in the movable block and the fixed block, the service life of a conveying chain cannot be affected, pressure is mechanically and continuously applied to the product through the locking mechanism to achieve pressure maintaining and shaping, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of automated mechanical technology, and in particular to an automatic clamping device. Background Art

[0002] Automated machinery is widely used in industry, agriculture, military, scientific research, transportation, commerce, medical treatment, services and family. The use of automation technology can not only free people from heavy physical labor, some mental labor and harsh and dangerous working environment, but also greatly improve labor productivity.

[0003] Automated machinery is an organic combination of traditional manufacturing technology with modern information technology, management technology, automation technology, and system engineering technology. Through computer technology, it organically integrates and optimizes the organization, operation, management, and technology related to enterprise products throughout their life cycle. Informatization, intelligence, and integrated optimization are realized throughout the life cycle of enterprise products to achieve the goals of fast product launch, good service, high quality, and low cost, thereby improving the flexibility, robustness, and agility of the enterprise.

[0004] The existing automated pressing and shaping equipment on the market all use hydraulic mechanisms to press the product raw materials into the mold for shaping. For example, Patent Publication No.: CN117814493A discloses "An Automated Continuous Seed Pressing Equipment", in which a material sorting mechanism is provided at one end of the mounting frame, and a seed steaming mechanism is provided below the output end of the material sorting mechanism. A seed moving mechanism is provided above the two ends of the seed steaming mechanism, and the seed moving mechanism is relatively slidably installed on the top of the mounting frame; a pressing and flipping mechanism is adapted to be installed at the output end of the seed steaming mechanism, and a transportation and processing mechanism is provided below the pressing and flipping mechanism, and the transportation and processing mechanism is opposite to the running direction of the seed steaming mechanism. In the above structure, when the pressing and flipping mechanism is used to press the seeds and finalize the shape, the downward pressure will be directly transmitted to the seed moving mechanism, causing the working life of the seed moving mechanism to be greatly reduced, and if there is a need to maintain pressure for a long time, the seed moving mechanism needs to be stopped, and a lot of time is spent on maintaining pressure, which greatly delays the processing process and has low processing efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is: Solve the problem that the existing automatic downward pressure shaping equipment transmits the downward pressure to the conveying mechanism, resulting in a short service life of the conveying mechanism; The invention solves the problem that the conveying mechanism of the existing automatic downward pressure shaping equipment needs to be stopped during pressure maintenance, which leads to low processing efficiency.

[0006] The technical solution of the present invention is: The present invention provides an automatic clamping device, comprising a frame, a conveying chain is arranged on the frame, a plurality of clamping molds are fixedly laid on the conveying chain, a clamping mechanism is arranged above the conveying chain, the clamping mechanism is fixedly connected to the frame, and the clamping mechanism is adapted to the clamping mold; The clamping mold includes a fixed block and a movable block, both ends of the fixed block are fixedly connected to the conveying chain, a sliding rod is provided on one side of the fixed block, and the movable block is sleeved on the sliding rod to form a sliding connection, and a plurality of curved grooves for clamping are provided on the side opposite to the movable block, a bearing plate is provided under the fixed block and the movable block, and a locking mechanism is provided between the fixed block and the movable block.

[0007] Preferably, the locking mechanism includes a shift rod and a locking rod, one end of the locking rod is rotatably connected to the end face of the movable block, the other end of the locking rod is provided with a locking groove, both ends of the fixed block are provided with locking protrusions adapted to the locking groove, one end of the shift rod is rotatably connected to the two ends of the fixed block, and the middle section of the shift rod is rotatably connected to the middle section of the locking rod.

[0008] Preferably, a guide slot is provided in the middle section of the locking rod, and a bolt is provided in the middle section of the shifting rod. The bolt passes through the guide slot, and the bolt can rotate and slide in the guide slot.

[0009] Preferably, the supporting plate includes a first supporting plate and a second supporting plate, one end of the first supporting plate is fixedly connected to the fixed block, and the other end of the first supporting plate faces the movable block, one end of the second supporting plate is fixedly connected to the movable block, and the other end of the second supporting plate faces the fixed block; the first supporting plate and the second supporting plate are arranged alternately.

[0010] Preferably, the sum of the width of the first supporting plate and the second supporting plate is adapted to the length of the curved groove.

[0011] Preferably, a limiting step is upwardly provided at one suspended end of the first supporting plate and the second supporting plate, and a step groove for the limiting step to pass through is provided on the lower surfaces of the fixed block and the movable block.

[0012] Preferably, a discharge lug is upwardly provided at one suspended end of the first supporting plate and the second supporting plate, and a guide groove for the discharge lug to pass through is provided on the lower surfaces of the fixed block and the movable block.

[0013] Preferably, a limit baffle is provided at one end of the sliding rod away from the fixing block.

[0014] Preferably, a discharge rod is provided below the conveying chain, the discharge rod is arranged horizontally, one end of the discharge rod is fixedly connected to the frame, and the other end is suspended in the air for abutting against the shifting rod, and a hopper is provided below the discharge rod.

[0015] Preferably, the hopper comprises an inner hopper and an outer hopper, a ventilation chamber is formed between the inner hopper and the outer hopper, an air inlet is provided on the outer hopper, and an air outlet is provided below the hopper.

[0016] Preferably, the hopper also 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 and sealed to the lower end of the outer hopper, and the inner edge of the bottom flange leaves a gap with the lower end of the inner hopper to form an air outlet.

[0017] Preferably, a plurality of first air guide plates are provided on one side of the inner hopper close to the ventilation chamber; the plurality of first air guide plates are arranged horizontally and distributed in a gap-like manner around the side wall of the inner hopper.

[0018] Preferably, a plurality of second air guide plates are provided on one side of the bottom flange close to the ventilation chamber; the plurality of second air guide plates are vertically arranged, and holes around the center of the bottom flange are radially distributed.

[0019] Preferably, a handrail is provided on the outer side of the connecting flange, and the handrail is symmetrically arranged.

[0020] Preferably, the inner bucket and the outer bucket are both made of stainless steel thin-walled bodies.

[0021] 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 the cylinder body of the lifting cylinder is fixedly connected to the frame, and the rod body of the lifting cylinder is connected to the clamping fixed plate. The clamping electric cylinder is arranged horizontally, and the cylinder body of the clamping electric cylinder is fixedly connected to the frame, and the rod body of the clamping electric cylinder is connected to the clamping movable plate. The clamping fixed plate is slidably connected to the clamping movable plate. A fixed claw is provided at the bottom of the clamping fixed plate, and a movable claw is provided at the bottom of the clamping movable plate. The fixed claw and the movable claw cooperate with each other to clamp the clamping mold.

[0022] Preferably, the clamping movable plate is provided with at least one vertical slot hole in the horizontal direction, the rod body of the clamping electric cylinder is connected to the clamping movable plate through the vertical slot hole, 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.

[0023] Preferably, the clamping movable plate is provided with a plurality of reinforcing ribs, a reinforcing steel pipe is provided above the reinforcing ribs, and the reinforcing steel pipe and the reinforcing ribs are perpendicular to each other.

[0024] Preferably, a pre-push mechanism is provided above the conveying chain, and the pre-push mechanism is provided upstream of the clamping mechanism. The pre-push mechanism includes a pre-push cylinder and a pre-push tooth plate. The cylinder body of the pre-push cylinder is fixedly connected to the frame, and the cylinder body of the pre-push cylinder is connected to the pre-push tooth plate. The lower surface of the pre-push tooth plate is provided with pre-push teeth.

[0025] Preferably, the pre-push mechanism is also provided with an adjustment component, the adjustment component includes an adjustment motor, a 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 screw, the screw is rotatably connected to the frame, a screw nut is sleeved on the screw, the mounting plate is fixedly connected to the screw nut, the pre-push cylinder is fixedly connected to the mounting plate, a positioning detector is provided on the frame, and the positioning detector is electrically connected to the pre-push mechanism.

[0026] Preferably, a flattening mechanism is also provided above the conveying chain, and the flattening mechanism is provided upstream of the pre-pushing mechanism. The flattening mechanism includes a mounting rod, and the mounting rod is horizontally arranged and fixedly connected to the frame. At least one group of rollers is provided below the mounting rod, and the rotation direction of the rollers is consistent with the travel direction of the conveying chain.

[0027] The present invention also provides an automatic clamping process, which is applied to the above-mentioned automatic clamping device and comprises the following steps: S1. Loading: placing the product raw materials into the clamping mold by manual or / and automatic loading equipment; S2, flattening, start the conveyor chain to drive the clamping mold to pass through the flattening mechanism to achieve a flat posture of the clamping mold; S3, pre-pushing, adjusting the gap between the clamping molds through the pre-pushing mechanism; S4, clamping and shaping, the clamping mold is clamped by the clamping mechanism, and the clamping mechanism synchronously triggers the self-locking function of the clamping mold to clamp and shape the product; S5, heating, conveying the clamping mold in a self-locking state to a heating chamber for heating through a conveyor chain; S6, unloading, the conveyor chain transports the clamping mold carrying the product to the unloading position, and the locking state of the locking mechanism is released by the cooperation between the lever and the unloading lever, and the product falls into the hopper by gravity, completing the unloading; S7, cooling and shaping. Cooling gas is introduced into the hopper while unloading to assist the product in cooling and shaping.

[0028] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention proposes an automatic clamping device for shaping product seed materials. By changing the shaping pressure direction from the conventional vertical direction to the horizontal direction, the structural design difficulty of the automatic conveying is effectively simplified, and the service life of the automatic conveying line is greatly improved.

[0029] 2. The present 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-maintaining and shaping. It can achieve pressure-maintaining and shaping while transporting the product seed material, avoiding the disadvantage of the existing pressure shaping equipment that the conveyor belt needs to be stopped during pressure maintenance, greatly saving processing and transportation time and improving processing efficiency.

[0030] The detailed structure of the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall appearance of the automatic clamping device of the present invention; Figure 2 The second schematic diagram of the overall appearance of the automatic clamping device of the present invention; Figure 3 It is a side view of the automatic clamping device of the present invention; Figure 4 The second side view of the automatic clamping device of the present invention; Figure 5 It is a structural schematic diagram of the clamping mold of the present invention; Figure 6 for Figure 5 A local enlarged schematic diagram of point A; Figure 7 It is a structural schematic diagram of the locking mechanism of the present invention; Figure 8 It is a structural schematic diagram of the locking rod of the present invention; Fig. 9 This is a structural schematic diagram of the clamping mechanism of the present invention; Fig.10 It is a partial cross-sectional schematic diagram of the clamping mechanism of the present invention; Fig.11 The second structural schematic diagram of the clamping mechanism of the present invention; Fig.12 It is a structural schematic diagram of the hopper of the present invention; Fig.13 It is a partial cross-sectional schematic diagram of the hopper of the present invention; Fig.14 for Fig.13 A local enlarged schematic diagram of point B; Fig.15 It is a structural schematic diagram of the pre-pushing mechanism of the present invention; Fig.16It is a cross-sectional schematic diagram of the pre-pushing mechanism of the present invention; Fig.17 It is a structural schematic diagram of the flattening mechanism of the present invention; Fig.18 It is a side view of the flattening mechanism of the present invention; Name of each component and corresponding serial number: 1. Frame; 2. Conveyor chain; 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. Push rod; 372. Locking rod; 373. Locking groove; 374. Locking protrusion; 375. Guide slot hole; 38. Discharge protrusion; 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. Reinforcement rib; 410. Reinforced steel pipe; 5. Pre-push mechanism; 51. Pre-push cylinder; 52. Pre-push tooth plate; 53. Pre-push tooth; 54. Adjustment motor; 55. Screw; 56. Screw nut; 57. Mounting plate; 58. Positioning detector; 6. Flattening mechanism; 61. Mounting rod; 62. Roller; 7. Heating chamber; 8. Discharge rod; 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; 10. Control terminal. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. The following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Unless otherwise defined, the technical or scientific terms used in the present disclosure shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "including" or "comprising" and the like used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly. The vertical arrangement and horizontal arrangement mentioned in the text are all relative to the horizontal plane.

[0034] like Figure 1-Figure 4 As shown: The present invention provides an automatic clamping device, including a frame 1, a conveying chain 2 is provided on the frame 1, a plurality of clamping molds 3 are fixedly laid on the conveying chain 2, a clamping mechanism 4 is provided above the conveying 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 will rotate cyclically with the conveying chain 2 to achieve the purpose of automatically conveying the product seed material to each functional area, and at the same time make the clamping mold 3 recyclable.

[0035] like Figure 5 and Figure 6 As shown, the clamping mold 3 includes a fixed block 31 and a movable block 32, both ends of the fixed block 31 are fixedly connected to the conveying chain 2, a sliding rod 33 is provided on one side of the fixed block 31, and the movable block 32 is sleeved on the sliding rod 33 to form a sliding connection, and a plurality of curved grooves 34 for clamping are provided on the opposite side of the fixed block 31 and the movable block 32, and a bearing 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 product seed material can be placed on the bearing plate, and by applying pressure to the movable block 32 toward the fixed block 31, the product seed material can be squeezed in the curved grooves 34 on the movable block 32 and the fixed block 31, and at the same time, the locking mechanisms 37 at both ends of the movable block 32 can lock the movable block 32 and the fixed block 31, so that the product seed material is in a state of continuous squeezing, which can effectively reduce the occurrence of the product seed material rebound phenomenon.

[0036] Furthermore, in order to better center the product seed material when it is placed, 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 sum of the width of the first supporting plate 35 and the second supporting plate 36 is adapted to the length of the curved groove 34, and a limiting step is provided upward at one end of the first supporting plate 35 and the second supporting plate 36 that is suspended, and a step groove is provided on the lower surface of the fixed block 31 and the movable block 32 for the limiting step to pass through, and 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 step groove can better center the product seed material when it is placed.

[0037] Furthermore, the first and second supporting plates 35 and 36 are provided with a discharge protrusion 38 at one end thereof which is suspended upward, and the lower surfaces of the fixed block 31 and the movable block 32 are provided with a guide groove for the discharge protrusion 38 to pass through. When the movable block 32 is out of the locked state, the discharge protrusion 38 on the first supporting plate 35 can move the product seed material closely embedded in the curved groove 34 of the movable block 32 back to the supporting plate, and the discharge protrusion 38 on the second supporting plate 36 can move the product seed material closely embedded in the curved groove 34 of the fixed block 31 back to the supporting plate. This process is a fully automatic process, without manual operation, which greatly improves the efficiency of production and processing.

[0038] Furthermore, a limit baffle is provided at one end of the slide rod 33 away from the fixed block 31 , which can effectively prevent the movable block 32 from being separated from the slide rod 33 .

[0039] Specifically, a discharge rod 8 is provided below the conveying chain 2. The discharge rod 8 is arranged horizontally. One end of the discharge rod 8 is fixedly connected to the frame 1, and the other end is suspended to abut against the lever 371. A hopper 9 is provided below the discharge rod 8. The discharge rod 8 is arranged in the moving direction of the clamping mold 3. When the clamping mold 3 in a self-locking state is conveyed to the installation position of the discharge rod 8 along with the conveying chain 2, the discharge rod 8 will block the moving 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 to disengage the locking rod 372 from the locking protrusion 374, completing automatic unlocking. At this time, the opening of the clamping mold 3 is in a downward state, and the product seed material in the curved groove 34 will fall into the hopper 9 with gravity to complete automatic unloading.

[0040] like Figure 7As shown, specifically, the locking mechanism 37 includes a lever 371 and a locking rod 372, one end of the locking rod 372 is rotatably connected to the end surface of the movable block 32, the other end of the locking rod 372 is provided with a locking groove 373, both ends of the fixed block 31 are provided with locking protrusions 374 adapted to the locking groove 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 rod 372. When the movable block 32 is pressed, the locking groove 373 on the locking rod 372 automatically matches with the locking protrusion 374 under the influence of the movable block 32, so that the locking protrusion 374 is embedded in the locking groove 373 to complete the locking.

[0041] like Figure 8 As shown, 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, and the bolt passes through the guide slot 375, and the bolt can rotate and slide in the guide slot 375. When the product seed material is squeezed, the force of the product seed material rebounding can be relied on to apply a pre-tightening force to the locking rod 372 and the locking protrusion 374, so that the locking effect of the locking rod 372 and the locking protrusion 374 is more stable. In this process, the movable block 32 needs a certain amount of movement. By providing the guide slot 375, the lever 371 can compensate for this part of the movement in the guide slot 375, so as to prevent the movement of the movable block 32 in the locked state from being affected by the length limitation of the lever 371.

[0042] like Figure 12-14 As shown, 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, and 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 and sealed to the lower end of the outer hopper 92, and 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 product seed material completes unloading 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 in a low temperature state at all times. The product seed material falls into the hopper 9 and contacts with the hopper 9 to realize heat exchange transfer, thereby achieving the initial cooling of the product seed material. Furthermore, when the product seed material passes through the hopper 9 and falls into the collection container or the conveyor belt of the next process, the air outlet 97 below the hopper 9 will continue to blow air on the product seed material, thereby achieving rapid cooling and shaping of the product seed material.

[0043] Specifically, a plurality of first air guide plates 98 are provided on one side of the inner hopper 91 close to the ventilation chamber 94; the plurality of first air guide plates 98 are arranged horizontally and are distributed in a gap-like manner around the side wall of the inner hopper 91. The first air guide plates 98 can disperse and guide the wind entering the ventilation cavity from the single air inlet 95 to blow over the entire ventilation cavity, so as to better transfer the heat brought to the hopper 9 by the product seed material.

[0044] Specifically, a plurality of second air guide plates 99 are provided on one side of the bottom flange 96 close to the ventilation chamber 94; the plurality of second air guide plates are vertically arranged, and holes around the center of the bottom flange 96 are radially distributed. The cold air in the ventilation chamber 94 can be vertically guided to the air outlet 97, preventing the cold air from being discharged from the air outlet 97 in a manner of scattering in various directions, thereby affecting the cooling efficiency.

[0045] Specifically, a handrail 910 is provided on the outer side of the connecting flange 93 , and the handrail 910 is symmetrically arranged to facilitate the staff to carry out the picking operation on the hopper 9 .

[0046] Specifically, the inner bucket 91 and the outer bucket 92 are both made of stainless steel thin-walled bodies, which have many advantages such as low cost, good thermal conductivity, and high cost-effectiveness in rust prevention.

[0047] The clamping mechanism 4 of the present invention can be any device on the market that can achieve the clamping function. In this embodiment, the clamping mechanism 4 is specifically as follows: Figure 9-11 As shown, 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, the clamping movable plate 44 is provided with a movable claw 46, the lifting cylinder 41 is vertically set up, 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, the cylinder body of the clamping electric cylinder 42 is fixedly connected to the frame 1, and 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 to the bottom of the clamping mechanism 4, the lifting cylinder 41 will drive the clamping fixed plate 43 to descend, and the fixed claw 45 will extend into the gap between the clamping molds 3 and abut against the fixed block 31; the movable claw 46 may extend into the gap between the clamping molds 3 and abut against the movable block 32; the clamping movable plate 44 is driven by the clamping electric cylinder 42 to move on the clamping fixed plate 43, so that the movable claw 46 and the fixed claw 45 clamp and press the movable block 32 and the fixed block 31, and trigger the self-locking of the clamping mold 3, so as to clamp the product seed material.

[0048] The clamping movable plate 44 is provided with at least one vertical slot 47 along the horizontal direction, and the rod body 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 body of the clamping electric cylinder 42 adjusts its position in the vertical slot 47. The clamping fixed plate 43 is provided with a slide rail 48, and 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.

[0049] Specifically, the clamping movable plate 44 is provided with a plurality of reinforcing ribs 49, and a reinforcing steel pipe 410 is provided above the reinforcing ribs 49, and the reinforcing steel pipe 410 and the reinforcing ribs 49 are perpendicular to each other. 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.

[0050] Specifically, in actual working conditions, since the conveyor chain 2 will shake during operation, the distance between the clamping molds 3 will change. In order to ensure that the movable claw 46 and the fixed claw 45 of the clamping mechanism 4 can smoothly extend into the gap between the clamping molds 3, as shown in FIG. Fig.15 and Fig.16 As shown, the present invention is provided with a pre-push mechanism 5 above the conveying chain 2, and the pre-push mechanism 5 is provided upstream of the clamping mechanism 4. The pre-push mechanism 5 includes at least one 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, and 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. The pre-push mechanism 5 is also provided with an adjustment component, and the adjustment component includes an adjustment motor 54, a screw rod 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 screw rod 55. The screw rod 55 is rotatably connected to the frame 1. A screw nut 56 is sleeved on the screw rod 55, and the mounting plate 57 is fixedly connected to the 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 mechanism 5. 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 downward by the pre-push cylinder 51, and the clamping mold 3 is pushed to move by the adjustment motor 54 to complete the pre-push action, 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.

[0051] It is worth noting that the positioning monitor can be any infrared detector, ultraviolet detector or other detector that can achieve the same function on the market. The control terminal 10 is a common control device such as a PC or PLC on the market.

[0052] Specifically, in actual working conditions, the clamping mold 3 will circulate with the conveying chain 2. When the clamping mold 3 changes to a horizontal position at the bending position of the conveying chain 2, the clamping mold 3 will retain a certain angle, resulting in the clamping mold 3 being in a tilted posture at a certain angle. In order to adjust the posture of the clamping mold 3, in this embodiment, a flattening mechanism 6 is further provided above the conveying chain 2. Fig.17 and Fig.18 As shown, the flattening mechanism 6 is arranged upstream of the pre-pushing mechanism 5, and the flattening mechanism 6 includes a mounting rod 61, which is arranged horizontally and fixedly connected to the frame 1. At least one set of rollers 62 is arranged below the mounting rod 61, and three sets are provided in this embodiment. The rotation direction of the rollers 62 is consistent with the travel direction of the conveying chain 2. When the clamping mold 3 in an inclined posture passes through the flattening mechanism 6, it will be rolled layer by layer by three sets of rollers 62 in succession, and the inclination angle of the clamping mold 3 will be reduced little by little until the clamping mold 3 is in a horizontal posture.

[0053] 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 the present embodiment, the heating source is high-temperature steam passed into the heating chamber 7. The portion 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 conveying chain 2 for heating, thereby achieving a high-temperature pressure-maintaining effect, enhancing the shaping effect of the product seed material, avoiding the disadvantage that the existing automated shaping and forming equipment needs to stop during pressure maintenance, and greatly improving the processing efficiency.

[0054] The product seed material is a product sheet obtained by cutting an ellipsoidal high-cellulose lignin product material into two halves.

[0055] The present invention also provides an automatic clamping process, which is applied to the above-mentioned automatic clamping device and comprises the following steps: S1, loading, placing the product raw materials into the clamping mold 3 by manual or / and automatic loading equipment; S2, flattening, start the conveyor chain 2 to drive the clamping mold 3 to be rolled step by step by the three groups of rollers 62 of the flattening mechanism 6, and gradually achieve a flat posture of the clamping mold 3; S3, pre-pushing, adjusting the gap between the clamping molds 3 by the pre-pushing mechanism 5; S4, clamping and shaping, the clamping mold 3 is clamped by the clamping mechanism 4, and the clamping mechanism 4 synchronously triggers the self-locking function of the clamping mold 3 to clamp and shape the product; S5, heating, conveying the clamping mold 3 in the self-locking state to the heating chamber 7 through the conveying chain 2 for heating; S6, unloading, the conveyor chain 2 transports the clamping mold 3 carrying the product to the unloading position, and the locking state of the locking mechanism 37 is released by the cooperation between the lever 371 and the unloading rod 8, and the product falls into the hopper 9 by gravity, completing the unloading; S7, cooling and shaping, while unloading, cooling gas is introduced into the hopper 9 to assist the product in cooling and shaping.

[0056] The working principle and working process of this embodiment are as follows: the operator can manually or use the existing automatic loading equipment to put the product seed material into the curved groove 34 of the clamping mold 3, and the conveying chain 2 drives the clamping mold 3 to move forward, and successively passes through the flattening mechanism 6 and the pre-pushing mechanism 5 to adjust the posture of the clamping mold 3. When the clamping mold 3 carries the product seed material to the bottom of the clamping mechanism 4 and stops, the clamping mechanism 4 descends and 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, so that the movable block 32 moves toward 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 conveying chain 2 will output the clamping mold 3 in the locked state The product seed material is sent to the heating chamber 7 for heating to improve the deformation ability of the product seed material. After the heating is completed, the conveying chain 2 will continue to transport the clamping mold 3 to the unloading area. When the lever 371 of the locking mechanism 37 of the end face of the clamping mold 3 contacts the unloading rod 8, as the conveying chain 2 moves, the lever 371 is rotated by the unloading rod 8, and the locking mechanism 37 will be 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 supporting plate 35 and the second supporting plate 36 will push the product seed material off the groove wall of the curved groove 34, and the product seed material will fall into the hopper 9 with gravity to complete the unloading. At the same time, cold air will continue to be introduced into the hopper 9 to quickly cool the hopper 9 and the product seed material, which is convenient for the shaping of the product seed material and reduces the rebound of the product seed material; the clamping mold 3 continues to move with the conveying chain 2 and starts the next round of clamping processing cycle.

[0057] The above is a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes according to the technical solutions and concepts of the present invention, which should be covered by the protection scope of the claims of the present invention.

Claims

1. An automatic clamping device, characterized in that: The machine comprises a frame (1), a conveying chain (2) is provided on the frame (1), a plurality of groups of clamping molds (3) are fixedly laid on the conveying chain (2), a clamping mechanism (4) is provided above the conveying chain (2), the clamping mechanism (4) is fixedly connected to the frame (1), and the clamping mechanism (4) is adapted to the clamping molds (3); The clamping mold (3) comprises a fixed block (31) and a movable block (32), both ends of the fixed block (31) are fixedly connected to the conveying chain (2), a sliding rod (33) is provided on one side of the fixed block (31), and the movable block (32) is sleeved on the sliding rod (33) to form a sliding connection, and a plurality of curved grooves (34) for clamping are provided on the sides opposite to the movable block (32), a bearing 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).

2. An automatic clamping device according to claim 1, characterized in that: The locking mechanism (37) comprises a lever (371) and a locking rod (372); one end of the locking rod (372) is rotatably connected to an end surface of the movable block (32); the other end of the locking rod (372) is provided with a locking groove (373); both ends of the fixed block (31) are provided with locking protrusions (374) adapted to the locking groove (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 rod (372).

3. An automatic clamping device according to claim 2, characterized in that: A discharge rod (8) is provided below the conveying chain (2). The discharge rod (8) is arranged horizontally, one end of the discharge rod (8) is fixedly connected to the frame (1), and the other end is suspended in the air. A hopper (9) is provided below the discharge rod (8).

4. The automatic clamping device according to claim 3, characterized in that: The hopper (9) comprises 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. The automatic clamping device according to claim 4, characterized in that: The hopper (9) further comprises 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; an air inlet (95) is provided on the outer side wall of the outer hopper (92); the outer edge of the bottom flange (96) is connected to and sealed at the lower end of the outer hopper (92); and a gap is left between the inner edge of the bottom flange (96) and the lower end of the inner hopper (91) to form an air outlet (97).

6. The automatic clamping device according to claim 1, characterized in that: The clamping mechanism (4) comprises 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, the cylinder body of the lifting cylinder (41) is fixedly connected to the frame (1), the rod body of the lifting cylinder (41) is connected to the clamping fixed plate (43); the clamping electric cylinder (42) is arranged horizontally, the cylinder body of the clamping electric cylinder (42) is fixedly connected to the frame (1), the rod body of the clamping electric cylinder (42) is connected to the clamping movable plate (44), the clamping fixed plate (43) is slidably connected to the clamping movable plate (44), the lower surface of the clamping fixed plate (43) is provided with a fixed claw (45), the lower surface of the clamping movable plate (44) is provided with a movable claw (46), and the fixed claw (45) and the movable claw (46) cooperate with each other to clamp the clamping mold (3).

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

8. An automatic clamping device according to claim 6 or 7, characterized in that: A plurality of reinforcing ribs (49) are provided on the clamping movable plate (44), a reinforcing steel pipe (410) is provided above the reinforcing ribs (49), and the reinforcing steel pipe (410) and the reinforcing ribs (49) are perpendicular to each other.

9. The automatic clamping device according to claim 1, characterized in that: A pre-push mechanism (5) is provided above the conveying chain (2). The pre-push mechanism (5) is provided upstream of the clamping mechanism (4). The pre-push mechanism (5) comprises 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).

10. The automatic clamping device according to claim 9, characterized in that: The pre-pushing mechanism (5) is further provided with an adjustment component, the adjustment component comprising an adjustment motor (54), a screw rod (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 screw rod (55); the screw rod (55) is rotatably connected to the frame (1); a screw rod nut (56) is sleeved on the screw rod (55); the mounting plate (57) is fixedly connected to the screw rod nut (56); the pre-pushing 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 electrically connected to the pre-pushing mechanism (5).

11. The automatic clamping device according to claim 9, characterized in that: A flattening mechanism (6) is also provided above the conveying chain (2). The flattening mechanism (6) is provided upstream of the pre-pushing mechanism (5). The flattening mechanism (6) comprises a mounting rod (61). The mounting rod (61) is arranged horizontally and fixedly connected to the frame (1). At least one group 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 conveying chain (2).

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