Polyurethane sieve plate demolding mechanism and demolding method thereof

Abstract

The invention belongs to the technical field of polyurethane sieve plate production, and particularly relates to a polyurethane sieve plate demolding mechanism and a demolding method.The polyurethane sieve plate demolding mechanism comprises a base, two supporting columns are fixedly connected to the right side of the upper end face of the base, a lower mold is fixedly connected to the upper end faces of the supporting columns, and a fixing plate is fixedly connected to the right side of the upper end face of the lower mold; an upper mold is fixedly connected to the lower end of the left side of the connecting plate, an injection molding pipe is arranged in the middle of the upper end of the upper mold, fourth sliding rods are slidably connected to the left end and the right end of the lower side of the lower mold correspondingly, a demolding plate is fixedly connected to the upper ends of the fourth sliding rods, and a jacking type tidy stacking mechanism used for placing the polyurethane sieve plates is arranged on the base. By means of the jacking type tidy stacking mechanism, polyurethane sieve plates ejected out of the die cavity can be transferred to the discharging plate, then the polyurethane sieve plates located on the discharging plate are stacked tidily, the process that the polyurethane sieve plates are taken away manually is omitted, and manpower is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of polyurethane sieve plate production, in particular to a polyurethane sieve plate demoulding mechanism and a demoulding method thereof. Background Art

[0002] The polyurethane sieve plate is a mesh product produced with polyurethane as raw material, with holes of various shapes, such as slits, rectangles, circles, squares, etc. After the polyurethane sieve plate is formed and cured in the mold, it needs to be removed from the mold by a demoulding mechanism to facilitate the collection of the formed polyurethane sieve plate.

[0003] The patent with announcement number CN209888002U discloses an automatic demoulding device for a cast polyurethane sieve plate, including: an ejection mechanism, a main working surface and a guide mechanism; the ejection mechanism includes a base plate, a jack and an ejection plate; the main working surface includes a push rod fixing plate, a push rod, a heating plate, a mold fixing plate, a steel frame and a mold core; the guide mechanism includes a guide column. The utility model has a simple and reliable structure, and each module is easy to disassemble and replace. Generally, manual disassembly and assembly are no longer required. It only needs to be placed in a steel frame, poured, and the ejection mechanism is operated to take out the parts. This cycle significantly improves production efficiency. It basically avoids the occurrence of various accidental injuries, and the appearance of the product is also greatly improved.

[0004] However, the above technical solution still has the following deficiencies in practical application: Although the formed sieve plate can be ejected from the mold cavity and then taken away by personnel, after multiple sieve plates are ejected from the mold cavity in turn, the staff is required to frequently take away the ejected sieve plates, which is labor-intensive. In addition, after the multiple sieve plates are taken away, they may be placed around the mold in a relatively messy manner, which is not conducive to subsequent unified packaging and transportation and other processing processes, and is not convenient for personnel to conduct unified quality inspections on multiple sieve plates.

[0005] To this end, the present invention provides a polyurethane sieve plate demoulding mechanism and a demoulding method thereof. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a polyurethane sieve plate demoulding mechanism and a demoulding method thereof.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a polyurethane sieve plate demoulding mechanism, comprising a base, two pillars are fixedly connected to the right side of the upper end surface of the base, the upper end surface of the pillars is fixedly connected to the lower mold, the upper end surface of the lower mold is fixedly connected to a fixed plate, one side of the upper end of the fixed plate is fixedly connected to a second slide bar, the lower end of the second slide bar is fixedly connected to the lower mold, the second slide bar is slidably connected to a connecting plate, the lower left end of the connecting plate is fixedly connected to the upper mold, an injection molding tube is provided at the middle of the upper end of the upper mold, the left and right ends of the lower side of the lower mold are slidably connected to a fourth slide bar, the upper end of the fourth slide bar is fixedly connected to a demoulding plate, and a jacking-type neat stacking mechanism for placing the polyurethane sieve plate is provided on the base; The jacking-type neat stacking mechanism includes a fixed column fixedly connected to the middle of the upper end surface of the base, the upper end of the fixed column is fixedly connected to a blanking plate, and grooves 2 and 1 are respectively provided on the left and right sides and the front and rear sides of the blanking plate. The left side of the upper end surface of the base is fixedly connected to a support plate, and the lower right end of the support plate is fixedly connected to a telescopic rod, and the piston end of the telescopic rod is fixedly connected to a lifting platform. The middle parts of the left and right sides of the upper end of the lifting platform are slidably connected to push plate 1, and the middle part of the upper end surface of the lifting platform is fixedly connected to a slide plate, and the front and rear sides of the slide plate are slidably connected to push plate 2, and the push plate 1 can be moved from the groove The two ends of the upper side of the concave plate are fixedly connected with sliding rods five, and the two ends of the upper side of the concave plate are fixedly connected with sliding rods five. The two ends of the sliding rods five are slidably connected with clamping plates, and the two ends of the right side of the support plate are slidably connected with sliding rods one, and the lower end of the sliding rod is fixedly connected with an adjusting plate, and the two sides of the adjusting plate are slidably connected with a limiting frame, and the front and rear ends of the lower side of the limiting frame are slidably connected with support blocks.

[0008] Preferably, a threaded barrel is rotatably provided in the middle part of the left side of the fixed column, and a threaded rod three is threadedly connected to the threaded barrel, and the upper end of the threaded rod three is fixedly connected to one side of the lower end surface of the lifting platform, and a motor seven is fixedly connected to the middle part of the left side of the fixed column, and the output end of the motor seven is fixedly connected to the lower end of the threaded barrel.

[0009] Preferably, an electric push rod three is fixedly connected to the middle part of the lower end surface of the lower mold, and the piston end of the electric push rod three is fixedly connected to the middle part of the lower end surface of the stripping plate, and a threaded rod two is threadedly connected to one end of the right side of the connecting plate, and the lower end of the threaded rod two is rotatably set on the lower mold, and the upper end of the threaded rod two is rotatably set on the fixed plate, and a motor two is fixedly connected to one side of the upper end surface of the fixed plate, and the output end of the motor two is fixedly connected to the upper end of the threaded rod two, and two sliding rods three are slidably connected to the lower side of the fixed plate, and the left end of the sliding rod three is fixedly connected to a pushing plate, and an electric push rod two is fixedly connected to the lower side of the right end surface of the fixed plate, and the piston end of the electric push rod two is fixedly connected to the middle part of the right end surface of the pushing plate.

[0010] Preferably, a motor five is fixedly connected to one end of the left side of the upper end surface of the base, and the output end of the motor five is fixedly connected to one end of the connecting rod two. A two-way threaded rod three is threadedly connected to one end of the front side of the clamping plate, and both ends of the two-way threaded rod three are rotatably set on the concave plate. A motor six is ​​fixedly connected to one side of the concave plate, and the output end of the motor six is ​​fixedly connected to one end of the two-way threaded rod three.

[0011] Preferably, a lower end of the push plate is threadedly connected to a two-way threaded rod 1, both ends of the two-way threaded rod 1 are rotatably set on the lifting platform, a motor 3 is fixedly connected to the middle of the right end surface of the lifting platform, the output end of the motor 3 is fixedly connected to the right end of the two-way threaded rod 1, the lower end of the push plate 2 is threadedly connected to a two-way threaded rod 2, the front and rear ends of the two-way threaded rod 2 are rotatably set on the slide plate, the rear end surface of the slide plate is fixedly connected to a motor 4, and the output end of the motor 4 is fixedly connected to the rear end of the two-way threaded rod 2.

[0012] Preferably, an electric push rod is fixedly connected to the middle part of the right side of the upper end surface of the support plate, and the piston end of the electric push rod is fixedly connected to the middle part of the upper end surface of the adjustment plate. A displacement frame is slidably connected to the left side of the upper end surface of the base, and a threaded rod is threadedly connected to the lower end of the displacement frame. Both ends of the threaded rod are rotatably arranged on the base, and a motor is fixedly connected to the front end of the left side of the upper end surface of the base.

[0013] Preferably, an output end of the motor is fixedly connected to a front end of the threaded rod, and a supporting plate is fixedly connected to the upper side of the rear end surface of the displacement frame.

[0014] Preferably, a motor eight is fixedly connected to the middle of the front end surface of the adjustment plate, and threaded rods four are fixedly connected to the output ends on both sides of the motor eight, and the threaded rods four are threadedly connected to the limit frame.

[0015] Preferably, both ends of the lower side of the limit frame are fixedly connected with groove blocks, the inner side of the groove block is slidably connected to the support block, one end of the support block is fixedly connected with a spring, and the other end of the spring is fixedly connected to one end of the inner side of the groove block.

[0016] A method for using a polyurethane screen plate demoulding mechanism comprises the following specific steps: S1. In the initial state, the upper mold and the lower mold are in a fitted state to form a completed mold cavity. The injection molding material is injected into the mold cavity through the injection molding tube. When the mold is formed, the upper mold is driven to rise, and then the stripper plate is driven to rise, so that the upper end surface of the stripper plate is flush with the lower end surface of the push plate; S2, driving the push plate to move, and the push plate pushes the formed polyurethane sieve plate to make it slide to the left side of the unloading plate through the unloading plate; S3, drive the lifting platform to rise, so that push plate 1 and push plate 2 pass through groove 2 and groove 1 respectively, then drive the two push plates 1 to approach each other, and the two push plates 2 to approach each other until they fit with the edge of the polyurethane sieve plate. At this time, the polyurethane sieve plate is straightened, and the four corners of the polyurethane sieve plate are aligned with the angle of the limit frame, and then drive the lifting rod to rise. At this time, the clamping plate passes through the sieve hole of the polyurethane sieve plate, and then drive the clamping plates on both sides to slide at the same time and approach each other to clamp the polyurethane sieve plate; S4, push plate 1 and push plate 2 move away from the polyurethane sieve plate, driving the lifting rod to continue to rise. When the four corners of the polyurethane sieve plate contact the support block, the support block can be squeezed to make it slide, and the spring is compressed until one end of the support block is flush with the end surface of one side of the limit frame. When the lower end surface of the polyurethane sieve plate is higher than the upper end surface of the support block, the support block is restored under the action of the spring, and the bottom of the polyurethane sieve plate can be supported, so that the first polyurethane sieve plate can be placed; S5. Repeat the above operations to make multiple polyurethane sieve plates stacked neatly by squeezing the upper polyurethane sieve plate with the bottom polyurethane sieve plate. When it is necessary to take out multiple polyurethane sieve plates in the limit frame, drive the displacement frame and the support plate to move backward so that the support plate is under the limit frame. Then the limit frames on both sides slide simultaneously and away from each other to make the support block detach from the bottom of the polyurethane sieve plate, so that multiple stacked polyurethane sieve plates can fall on the support plate. Then drive the limit frame to rise so that the polyurethane sieve plate can be completely detached from the limit frame. Then personnel can collect the polyurethane sieve plates on the support plate in a unified manner.

[0017] The beneficial effects of the present invention are as follows: 1. The polyurethane sieve plate demoulding mechanism and demoulding method described in the present invention utilize a jacking-type neat stacking mechanism to transfer the polyurethane sieve plate ejected from the mold cavity to a blanking plate, and then neatly stack the polyurethane sieve plates on the blanking plate, thereby eliminating the need to manually remove the polyurethane sieve plates, which saves manpower. In addition, since multiple polyurethane sieve plates are neatly stacked, it is also convenient for subsequent unified packaging and transportation of the multiple polyurethane sieve plates, and it is also convenient for personnel to uniformly inspect the quality of the multiple polyurethane sieve plates.

[0018] 2. The polyurethane sieve plate demoulding mechanism and demoulding method described in the present invention drive the displacement frame and the support plate to move backward so that the support plate is under the limit frame, and then the limit frames on both sides slide simultaneously and move away from each other to make the support block detach from the bottom of the polyurethane sieve plate, so that multiple stacked polyurethane sieve plates can fall on the support plate, thereby making it easier for staff to collect the stacked polyurethane sieve plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the local three-dimensional structure of the lifting platform; Figure 3 It is a schematic diagram of the local three-dimensional structure of the blanking plate; Figure 4 It is a schematic diagram of the local three-dimensional structure of the upper mold; Figure 5 It is a schematic diagram of the local three-dimensional structure of the lower mold; Figure 6 It is a schematic diagram of the local three-dimensional structure of the clamping plate; Figure 7 This is a schematic diagram of the partial three-dimensional structure from another perspective at the lifting platform; Figure 8 It is a schematic diagram of the local three-dimensional structure of the adjustment plate; Fig. 9 It is a schematic diagram of the partial three-dimensional structure of the half section at the groove block.

[0021] In the figure: 1, base; 2, support plate; 3, electric push rod 1; 4, slide rod 1; 5, upper mold; 6, displacement frame; 7, motor 1; 8, threaded rod 1; 9, support plate; 10, limit frame; 11, blanking plate; 12, groove 1; 13, groove 2; 14, injection tube; 15, fixed plate; 16, connecting plate; 17, motor 2; 18, threaded rod 2; 19, slide rod 2; 20, push plate; 21, electric push rod 2; 22, slide rod 3; 23, pillar; 24, lower mold; 25, stripping plate; 26, electric push rod 3; 27, slide rod 4; 28, push plate 1; 29, Push plate two; 30, motor three; 31, two-way threaded rod one; 32, two-way threaded rod two; 33, motor four; 34, lifting rod; 35, connecting rod one; 36, connecting rod two; 37, motor five; 38, concave plate; 39, clamping plate; 40, two-way threaded rod three; 41, sliding rod five; 42, motor six; 43, motor seven; 44, threaded cylinder; 45, threaded rod three; 46, telescopic rod; 47, adjustment plate; 48, motor eight; 49, threaded rod four; 50, groove block; 51, support block; 52, spring; 53, fixed column; 54, lifting platform; 55, slide plate. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please refer to Figure 1-Figure 9 The present invention provides a technical solution: a polyurethane sieve plate demoulding mechanism, comprising a base 1, two pillars 23 are fixedly connected to the right side of the upper end surface of the base 1, a lower mold 24 is fixedly connected to the upper end surface of the pillar 23, a fixed plate 15 is fixedly connected to the right side of the upper end surface of the lower mold 24, a sliding rod 19 is fixedly connected to one side of the upper end of the fixed plate 15, the lower end of the sliding rod 19 is fixedly connected to the lower mold 24, the sliding rod 19 is slidably connected to a connecting plate 16, the lower left end of the connecting plate 16 is fixedly connected to an upper mold 5, an injection tube 14 is arranged at the middle of the upper end of the upper mold 5, sliding rods 27 are slidably connected to both left and right ends of the lower side of the lower mold 24, the upper end of the sliding rod 27 is fixedly connected to a demoulding plate 25, and a jacking-type neat stacking mechanism for placing the polyurethane sieve plate is arranged on the base 1; The jacking-type neat stacking mechanism includes a fixed column 53 fixedly connected to the middle part of the upper end surface of the base 1, the upper end of the fixed column 53 is fixedly connected to the unloading plate 11, and the left and right sides and the front and rear sides of the unloading plate 11 are respectively provided with grooves 2 13 and grooves 12, the left side of the upper end surface of the base 1 is fixedly connected to the support plate 2, the lower end of the right side of the support plate 2 is fixedly connected to the telescopic rod 46, the piston end of the telescopic rod 46 is fixedly connected to the lifting platform 54, the middle parts of the left and right sides of the upper end of the lifting platform 54 are slidably connected to the push plate 1 28, the middle part of the upper end surface of the lifting platform 54 is fixedly connected to the slide plate 55, the front and rear sides of the slide plate 55 are slidably connected to the push plate 2 29, and the push plate 1 28 can be moved from the groove 1 3 passes through, the push plate 29 can pass through the groove 12, the left side of the upper end surface of the base 1 is rotatably provided with two connecting rods 2 36, one end of the connecting rod 2 36 is rotatably provided with a connecting rod 1 35, and one end of the connecting rod 1 35 is rotatably provided with a lifting rod 34, both sides of the upper end of the lifting rod 34 are fixedly connected with concave plates 38, both ends of the upper side of the concave plate 38 are fixedly connected with sliding rods 5 41, both sides of the sliding rods 5 41 are slidably connected with clamping plates 39, both ends of the right side of the support plate 2 are slidably connected with sliding rods 14, the lower end of the sliding rod 14 is fixedly connected with an adjusting plate 47, both sides of the adjusting plate 47 are slidably connected to the limit frame 10, and the front and rear ends of the lower side of the limit frame 10 are slidably connected with support blocks 51.

[0024] In this embodiment, Figure 1-Figure 9As shown, a threaded cylinder 44 is rotatably provided at the middle of the left side of the fixed column 53, and a threaded rod 3 45 is threadedly connected to the threaded cylinder 44, and the upper end of the threaded rod 3 45 is fixedly connected to one side of the lower end surface of the lifting platform 54, and a motor 7 43 is fixedly connected to the middle of the left side of the fixed column 53, and the output end of the motor 7 43 is fixedly connected to the lower end of the threaded cylinder 44; An electric push rod 3 26 is fixedly connected to the middle of the lower end surface of the lower mold 24, and the piston end of the electric push rod 3 26 is fixedly connected to the middle of the lower end surface of the stripper plate 25. A threaded rod 2 18 is threadedly connected to one end of the right side of the connecting plate 16. The lower end of the threaded rod 2 18 is rotatably set on the lower mold 24, and the upper end of the threaded rod 2 18 is rotatably set on the fixed plate 15. A motor 2 17 is fixedly connected to one side of the upper end surface of the fixed plate 15, and the output end of the motor 2 17 is fixedly connected to the upper end of the threaded rod 2 18. Two sliding rods 3 22 are slidably connected to the lower side of the fixed plate 15, and the left end of the sliding rod 3 22 is fixedly connected to the push plate 20. An electric push rod 21 is fixedly connected to the lower side of the right end surface of the fixed plate 15, and the piston end of the electric push rod 21 is fixedly connected to the middle of the right end surface of the push plate 20. A motor 5 37 is fixedly connected to one end of the left side of the upper end surface of the base 1, and the output end of the motor 5 37 is fixedly connected to one end of the connecting rod 2 36. A two-way threaded rod 3 40 is threadedly connected to one end of the front side of the clamping plate 39. Both ends of the two-way threaded rod 3 40 are rotatably arranged on the concave plate 38. A motor 6 42 is fixedly connected to one side of the concave plate 38, and the output end of the motor 6 42 is fixedly connected to one end of the two-way threaded rod 3 40. The lower end of the push plate 28 is threadedly connected with a bidirectional threaded rod 31, and both ends of the bidirectional threaded rod 31 are rotatably set on the lifting platform 54. The middle part of the right end surface of the lifting platform 54 is fixedly connected with a motor 30, and the output end of the motor 30 is fixedly connected to the right end of the bidirectional threaded rod 31. The lower end of the push plate 29 is threadedly connected with a bidirectional threaded rod 2 32, and the front and rear ends of the bidirectional threaded rod 2 32 are rotatably set on the slide plate 55. The rear end surface of the slide plate 55 is fixedly connected with a motor 4 33, and the output end of the motor 4 33 is fixedly connected to the rear end of the bidirectional threaded rod 2 32; An electric push rod 3 is fixedly connected to the middle part of the right side of the upper end surface of the support plate 2, and the piston end of the electric push rod 3 is fixedly connected to the middle part of the upper end surface of the adjustment plate 47. A displacement frame 6 is slidably connected to the left side of the upper end surface of the base 1. A threaded rod 8 is threadedly connected to the lower end of the displacement frame 6. Both ends of the threaded rod 8 are rotatably arranged on the base 1. A motor 7 is fixedly connected to the front end of the left side of the upper end surface of the base 1. The output end of the motor 7 is fixedly connected to the front end of the threaded rod 8. A supporting plate 9 is fixedly connected to the upper side of the rear end surface of the displacement frame 6. A motor eight 48 is fixedly connected to the middle of the front end surface of the adjustment plate 47, and threaded rods four 49 are fixedly connected to the output ends of both sides of the motor eight 48, and the threaded rods four 49 are threadedly connected to the limit frame 10; Both ends of the lower side of the limit frame 10 are fixedly connected with groove blocks 50, the inner side of the groove block 50 is slidably connected with the support block 51, one end of the support block 51 is fixedly connected with a spring 52, and the other end of the spring 52 is fixedly connected with one end of the inner side of the groove block 50; Specifically, when the existing demoulding device is used, although the formed sieve plate can be ejected from the mold cavity, and then the personnel can take away the sieve plate, after multiple sieve plates are ejected from the mold cavity in sequence, the personnel need to frequently take away the sieve plates, which is labor-intensive. Moreover, after the multiple sieve plates are taken away, they may be placed around the mold in a messy manner, which is not conducive to the subsequent unified packaging and transportation processing processes, and it is not convenient for personnel to uniformly check the quality of multiple sieve plates. Therefore, in order to solve the above problems, when the present embodiment is used, the upper mold 5 and the lower mold 24 in the initial state are in a fitted state to form a completed mold cavity, and the injection molding raw material is injected into the mold cavity through the injection molding tube 14. After the mold is formed, the motor 17 is used to drive the threaded rod 18 to rotate, so that the upper mold 5 rises, and then the electric push rod 3 26 is used to drive the stripping plate 25 to rise, so that the upper end surface of the stripping plate 25 is flush with the lower end surface of the push plate 20, and then the electric push rod 21 is used to drive the push plate 20 to move, and the push plate 20 pushes the formed polyurethane sieve plate to slide through the blanking plate 11 to the left side of the blanking plate 11, and then the motor 7 43 drives the threaded cylinder 44 to rotate, so that the threaded rod 3 4 5 rises, the telescopic rod 46 extends, and the lifting platform 54 rises, so that the push plate 1 28 and the push plate 2 29 pass through the groove 2 13 and the groove 1 12 respectively, and then the motor 30 and the motor 4 33 are used to rotate the two-way threaded rod 1 31 and the two-way threaded rod 2 32, so that the two push plates 1 28 are close to each other, and the two push plates 2 29 are close to each other until they fit with the edge of the polyurethane sieve plate. At this time, the polyurethane sieve plate is straightened, and the four corners of the polyurethane sieve plate are aligned with the angle of the limit frame 10, and then the motor 5 37 is used to drive the connecting rod 1 35 and the connecting rod 2 36 to rotate, so that the lifting rod 34 rises, and at this time, the clamping plate 39 passes through the sieve hole of the polyurethane sieve plate, and then the motor 6 42 is used to drive the two-way threaded rod 3 40 rotates, so that the clamping plates 39 on both sides slide and approach each other at the same time, clamping the polyurethane sieve plate, and then the push plate 1 28 and the push plate 2 29 move away from the polyurethane sieve plate, driving the lifting rod 34 to continue to rise. When the four corners of the polyurethane sieve plate contact the support block 51, the support block 51 can be squeezed to make it slide, and the spring 52 is compressed until one end of the support block 51 is flush with the end surface of one side of the limit frame 10. When the lower end surface of the polyurethane sieve plate is higher than the upper end surface of the support block 51, the support block 51 is restored under the action of the spring 52, and the bottom of the polyurethane sieve plate can be supported to achieve the placement of the first polyurethane sieve plate. Then repeat the above operation, and the upper polyurethane sieve plate can be squeezed through the bottom polyurethane sieve plate. In this way, multiple polyurethane sieve plates can be neatly stacked. When multiple polyurethane sieve plates in the limit frame 10 need to be taken out, the motor 7 can be used to drive the threaded rod 8 to rotate, so that the displacement frame 6 and the supporting plate 9 can be moved backward, so that the supporting plate 9 is under the limit frame 10. Then, under the action of the motor 8 48 driving the threaded rods 4 on both sides to rotate, the limit frames 10 on both sides slide simultaneously and move away from each other, so that the support block 51 is separated from the bottom of the polyurethane sieve plate, so that multiple stacked polyurethane sieve plates can fall on the supporting plate 9, and then the limit frame 10 is driven to rise, so that the polyurethane sieve plate can be completely separated from the limit frame 10, and then the personnel can collect the polyurethane sieve plates on the supporting plate 9 in a unified manner; Therefore, the polyurethane sieve plate ejected from the mold cavity can be transferred to the blanking plate 11 by utilizing the jacking-up neat stacking mechanism, and then the polyurethane sieve plate on the blanking plate 11 can be neatly stacked, thereby eliminating the process of manually removing the polyurethane sieve plate, which saves manpower. In addition, since multiple polyurethane sieve plates are neatly stacked, it is also convenient for subsequent unified packaging and transportation of multiple polyurethane sieve plates, and it is also convenient for personnel to uniformly check the quality of multiple polyurethane sieve plates.

[0025] A method for using a polyurethane screen plate demoulding mechanism comprises the following specific steps: S1. In the initial state, the upper mold 5 and the lower mold 24 are in a fitted state to form a completed mold cavity. The injection molding material is injected into the mold cavity through the injection molding tube 14. After the mold is formed, the upper mold 5 is driven to rise, and then the stripper plate 25 is driven to rise, so that the upper end surface of the stripper plate 25 is flush with the lower end surface of the push plate 20; S2, driving the push plate 20 to move, the push plate 20 pushes the formed polyurethane sieve plate to make it slide to the left side of the blanking plate 11 through the blanking plate 11; S3, drive the lifting platform 54 to rise, so that the push plate 1 28 and the push plate 2 29 pass through the groove 2 13 and the groove 1 12 respectively, and then drive the two push plates 1 28 to approach each other, and the two push plates 29 to approach each other until they fit with the edge of the polyurethane sieve plate. At this time, the polyurethane sieve plate is straightened, and the four corners of the polyurethane sieve plate are aligned with the angle of the limit frame 10, and then drive the lifting rod 34 to rise. At this time, the clamping plate 39 passes through the sieve hole of the polyurethane sieve plate, and then drive the clamping plates 39 on both sides to slide at the same time and approach each other to clamp the polyurethane sieve plate; S4, push plate 1 28 and push plate 2 29 move away from the polyurethane sieve plate, driving the lifting rod 34 to continue to rise. When the four corners of the polyurethane sieve plate contact the support block 51, the support block 51 can be squeezed to make it slide, and the spring 52 is compressed until one end of the support block 51 is flush with the end surface of one side of the limit frame 10. When the lower end surface of the polyurethane sieve plate is higher than the upper end surface of the support block 51, the support block 51 is restored under the action of the spring 52, and the bottom of the polyurethane sieve plate can be supported, so that the first polyurethane sieve plate can be placed; S5. Repeat the above operations to make multiple polyurethane sieve plates neatly stacked by squeezing the upper polyurethane sieve plate with the bottom polyurethane sieve plate. When it is necessary to take out multiple polyurethane sieve plates in the limit frame 10, drive the displacement frame 6 and the support plate 9 to move backward so that the support plate 9 is under the limit frame 10, and then the limit frames 10 on both sides slide simultaneously and away from each other to make the support block 51 detach from the bottom of the polyurethane sieve plate, so that multiple stacked polyurethane sieve plates can fall on the support plate 9, and then drive the limit frame 10 to rise, so that the polyurethane sieve plate can be completely detached from the limit frame 10, and then personnel can collect the polyurethane sieve plates on the support plate 9 in a unified manner.

[0026] Working principle: In the initial state, the upper mold 5 and the lower mold 24 are in a fitted state to form a completed mold cavity. The injection molding raw material is injected into the mold cavity through the injection molding tube 14. When the mold is formed, the upper mold 5 is driven to rise, and then the stripper plate 25 is driven to rise, so that the upper end surface of the stripper plate 25 is flush with the lower end surface of the push plate 20; the push plate 20 is driven to move, and the push plate 20 pushes the formed polyurethane sieve plate to slide through the blanking plate 11 to the left side of the blanking plate 11; the lifting platform 54 is driven to rise, so that the push plate 1 28 and the push plate 2 29 pass through the blanking plate 11 respectively. Groove 2 13, groove 12, then drive the two push plates 1 28 to approach each other, and the two push plates 2 29 to approach each other until they fit with the edge of the polyurethane sieve plate. At this time, the polyurethane sieve plate is straightened, and the four corners of the polyurethane sieve plate are aligned with the angle of the limit frame 10, and then drive the lifting rod 34 to rise. At this time, the clamping plate 39 passes through the sieve hole of the polyurethane sieve plate, and then drive the clamping plates 39 on both sides to slide at the same time and approach each other to clamp the polyurethane sieve plate; push plate 1 28 and push plate 2 29 are away from the polyurethane sieve plate, and drive the lifting rod 34 to continue to move upward When the four corners of the polyurethane sieve plate are in contact with the support block 51, the support block 51 can be squeezed to make it slide, and the spring 52 is compressed until one end of the support block 51 is flush with the end surface of one side of the limit frame 10. When the lower end surface of the polyurethane sieve plate is higher than the upper end surface of the support block 51, the support block 51 is restored under the action of the spring 52, and the bottom of the polyurethane sieve plate can be supported to achieve the placement of the first polyurethane sieve plate; repeat the above operation, and multiple polyurethane sieve plates can be made to slide by squeezing the upper polyurethane sieve plate through the bottom polyurethane sieve plate. Neatly stacked, when it is necessary to take out multiple polyurethane sieve plates in the limit frame 10, drive the displacement frame 6 and the support plate 9 to move backward so that the support plate 9 is under the limit frame 10, and then the limit frames 10 on both sides slide simultaneously and move away from each other, so that the support block 51 is detached from the bottom of the polyurethane sieve plate, so that multiple stacked polyurethane sieve plates can fall on the support plate 9, and then drive the limit frame 10 to rise, so that the polyurethane sieve plate can be completely detached from the limit frame 10, and then personnel can collect the polyurethane sieve plates on the support plate 9 in a unified manner.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A polyurethane screen plate demoulding mechanism, comprising a base (1), characterized in that: The right side of the upper end surface of the base (1) is fixedly connected to two pillars (23), the upper end surface of the pillars (23) is fixedly connected to a lower mold (24), the right side of the upper end surface of the lower mold (24) is fixedly connected to a fixed plate (15), one side of the upper end of the fixed plate (15) is fixedly connected to a second slide bar (19), the lower end of the second slide bar (19) is fixedly connected to the lower mold (24), the second slide bar (19) is slidably connected to a connecting plate (16), the lower left end of the connecting plate (16) is fixedly connected to an upper mold (5), an injection tube (14) is provided at the middle of the upper end of the upper mold (5), the left and right ends of the lower side of the lower mold (24) are slidably connected to a fourth slide bar (27), the upper end of the fourth slide bar (27) is fixedly connected to a stripping plate (25), and a lifting and neatly stacking mechanism for placing the polyurethane sieve plate is provided on the base (1); The lifting type neat stacking mechanism comprises a fixed column (53) fixedly connected to the middle part of the upper end surface of the base (1), the upper end of the fixed column (53) is fixedly connected to a blanking plate (11), and the left and right sides and the front and rear sides of the blanking plate (11) are respectively provided with a second groove (13) and a first groove (12), the left side of the upper end surface of the base (1) is fixedly connected to a support plate (2), the lower right end of the support plate (2) is fixedly connected to a telescopic rod (46), the piston end of the telescopic rod (46) is fixedly connected to a lifting platform (54), the middle parts of the left and right sides of the upper end of the lifting platform (54) are both slidably connected to a push plate 1 (28), the middle part of the upper end surface of the lifting platform (54) is fixedly connected to a slide plate (55), and the front and rear sides of the slide plate (55) are both slidably connected to a push plate 2 (29), and the push plate 1 (28) can pass through the groove 2 (13) to The push plate 2 (29) can pass through the groove 1 (12), and two connecting rods 2 (36) are rotatably arranged on the left side of the upper end surface of the base (1). One end of the connecting rod 2 (36) is rotatably arranged with a connecting rod 1 (35), and one end of the connecting rod 1 (35) is rotatably arranged with a lifting rod (34). Both sides of the upper end of the lifting rod (34) are fixedly connected with a concave plate (38), and both ends of the upper side of the concave plate (38) are fixedly connected with a sliding rod 5 (41), and both sides of the sliding rod 5 (41) are slidably connected with a clamping plate (39), and both ends of the right side of the support plate (2) are slidably connected with a sliding rod 1 (4), and the lower end of the sliding rod 1 (4) is fixedly connected with an adjusting plate (47), and both sides of the adjusting plate (47) are slidably connected with a limit frame (10), and the front and rear ends of the lower side of the limit frame (10) are slidably connected with a support block (51).

2. A polyurethane sieve plate demoulding mechanism according to claim 1, characterized in that: A threaded barrel (44) is rotatably provided at the middle portion of the left side of the fixed column (53), and a threaded rod three (45) is threadedly connected to the threaded barrel (44), and the upper end of the threaded rod three (45) is fixedly connected to one side of the lower end surface of the lifting platform (54). A motor seven (43) is fixedly connected to the middle portion of the left side of the fixed column (53), and the output end of the motor seven (43) is fixedly connected to the lower end of the threaded barrel (44).

3. A polyurethane screen plate demoulding mechanism according to claim 1, characterized in that: The middle part of the lower end surface of the lower mold (24) is fixedly connected with an electric push rod three (26), and the piston end of the electric push rod three (26) is fixedly connected to the middle part of the lower end surface of the stripper plate (25). The right end of the connecting plate (16) is threadedly connected with a threaded rod two (18), and the lower end of the threaded rod two (18) is rotatably arranged on the lower mold (24). The upper end of the threaded rod two (18) is rotatably arranged on the fixed plate (15). One side of the upper end surface of the fixed plate (15) is fixedly connected with a motor two (17), and the output end of the motor two (17) is fixedly connected to the upper end of the threaded rod two (18). The lower side of the fixed plate (15) is slidably connected with two sliding rods three (22), and the left end of the sliding rod three (22) is fixedly connected to the push plate (20). The lower side of the right end surface of the fixed plate (15) is fixedly connected with an electric push rod two (21), and the piston end of the electric push rod two (21) is fixedly connected to the middle part of the right end surface of the push plate (20).

4. A polyurethane sieve plate demoulding mechanism according to claim 1, characterized in that: A motor five (37) is fixedly connected to one end of the left side of the upper end surface of the base (1), and the output end of the motor five (37) is fixedly connected to one end of the connecting rod two (36). A bidirectional threaded rod three (40) is threadedly connected to one end of the front side of the clamping plate (39), and both ends of the bidirectional threaded rod three (40) are rotatably arranged on the concave plate (38). A motor six (42) is fixedly connected to one side of the concave plate (38), and the output end of the motor six (42) is fixedly connected to one end of the bidirectional threaded rod three (40).

5. A polyurethane sieve plate demoulding mechanism according to claim 1, characterized in that: The lower end of the push plate 1 (28) is threadedly connected to a bidirectional threaded rod 1 (31), and both ends of the bidirectional threaded rod 1 (31) are rotatably arranged on the lifting platform (54). A motor 3 (30) is fixedly connected to the middle of the right end surface of the lifting platform (54), and the output end of the motor 3 (30) is fixedly connected to the right end of the bidirectional threaded rod 1 (31). The lower end of the push plate 2 (29) is threadedly connected to a bidirectional threaded rod 2 (32), and the front and rear ends of the bidirectional threaded rod 2 (32) are rotatably arranged on the slide plate (55). The rear end surface of the slide plate (55) is fixedly connected to a motor 4 (33), and the output end of the motor 4 (33) is fixedly connected to the rear end of the bidirectional threaded rod 2 (32).

6. A polyurethane screen plate demoulding mechanism according to claim 1, characterized in that: An electric push rod (3) is fixedly connected to the middle part of the right side of the upper end surface of the support plate (2); a piston end of the electric push rod (3) is fixedly connected to the middle part of the upper end surface of the adjustment plate (47); a displacement frame (6) is slidably connected to the left side of the upper end surface of the base (1); a threaded rod (8) is threadedly connected to the lower end of the displacement frame (6); both ends of the threaded rod (8) are rotatably arranged on the base (1); and a motor (7) is fixedly connected to the front end of the left side of the upper end surface of the base (1).

7. A polyurethane sieve plate demoulding mechanism according to claim 6, characterized in that: The output end of the motor 1 (7) is fixedly connected to the front end of the threaded rod 1 (8), and the upper side of the rear end surface of the displacement frame (6) is fixedly connected to a supporting plate (9).

8. A polyurethane screen plate demoulding mechanism according to claim 1, characterized in that: A motor eight (48) is fixedly connected to the middle of the front end surface of the adjustment plate (47), and threaded rods four (49) are fixedly connected to the output ends on both sides of the motor eight (48), and the threaded rods four (49) are threadedly connected to the limit frame (10).

9. A polyurethane sieve plate demoulding mechanism according to claim 1, characterized in that: Both ends of the lower side of the limit frame (10) are fixedly connected to groove blocks (50), the inner side of the groove block (50) is slidably connected to a support block (51), one end of the support block (51) is fixedly connected to a spring (52), and the other end of the spring (52) is fixedly connected to one end of the inner side of the groove block (50).

10. A method for using a polyurethane sieve plate demoulding mechanism, characterized in that: Demolding is performed using the demoulding mechanism described in any one of claims 1 to 9, comprising the following specific steps: S1. In the initial state, the upper mold (5) and the lower mold (24) are in a fitted state to form a completed mold cavity. The injection molding material is injected into the mold cavity through the injection molding tube (14). When the mold is formed, the upper mold (5) is driven to rise, and then the stripper plate (25) is driven to rise, so that the upper end surface of the stripper plate (25) is flush with the lower end surface of the push plate (20); S2, driving the push plate (20) to move, so that the push plate (20) pushes the formed polyurethane sieve plate to slide through the unloading plate (11) to the left side of the unloading plate (11); S3, driving the lifting platform (54) to rise, so that the push plate 1 (28) and the push plate 2 (29) pass through the groove 2 (13) and the groove 1 (12) respectively, and then driving the two push plates 1 (28) to approach each other, and the two push plates 2 (29) to approach each other, until they are in contact with the edge of the polyurethane sieve plate. At this time, the polyurethane sieve plate is straightened, and the four corners of the polyurethane sieve plate are aligned with the angle of the limit frame (10), and then driving the lifting rod (34) to rise. At this time, the clamping plate (39) passes through the sieve hole of the polyurethane sieve plate, and then driving the clamping plates (39) on both sides to slide simultaneously and approach each other to clamp the polyurethane sieve plate; S4, push plate 1 (28) and push plate 2 (29) move away from the polyurethane sieve plate, driving the lifting rod (34) to continue to rise. When the four corners of the polyurethane sieve plate contact the support block (51), the support block (51) can be squeezed to make it slide, and the spring (52) is compressed until one end of the support block (51) is flush with the end surface of one side of the limit frame (10). When the lower end surface of the polyurethane sieve plate is higher than the upper end surface of the support block (51), the support block (51) is restored under the action of the spring (52), and the bottom of the polyurethane sieve plate can be supported, thereby achieving the placement of the first polyurethane sieve plate; S5. Repeat the above operation to make the multiple polyurethane sieve plates neatly stacked by squeezing the upper polyurethane sieve plate with the bottom polyurethane sieve plate. When it is necessary to take out the multiple polyurethane sieve plates in the limit frame (10), drive the displacement frame (6) and the support plate (9) to move backward so that the support plate (9) is under the limit frame (10). Then, the limit frames (10) on both sides slide simultaneously and move away from each other so that the support block (51) is detached from the bottom of the polyurethane sieve plate, so that the multiple stacked polyurethane sieve plates fall on the support plate (9). Then, drive the limit frame (10) to rise so that the polyurethane sieve plates are completely detached from the limit frame (10). Then, personnel can collect the polyurethane sieve plates on the support plate (9) in a unified manner.

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