Compression molding device for plastic product production

Abstract

The invention relates to the technical field of plastic product production equipment, in particular to a compression molding device for plastic product production, which comprises a base, the back of the base is fixedly connected with a support plate, the right side surface of the support plate is fixedly connected with a control panel, and the upper surface of the base is provided with a first conveying frame; a lower die plate is arranged on the surface of the first conveying frame, side blocks are fixedly connected to the front surface and the rear surface of the lower die plate, a hydraulic cylinder is installed on the surface of the lower end of the supporting plate, and an upper die plate is installed at the lower end of the hydraulic cylinder. The first positioning plate and the second positioning plate can continue to ascend to stop and position the lower mold plate on the surface of the first conveying frame, compression molding operation is facilitated, and the lower mold plate can continuously move so that circulating compression molding operation can be conducted; and meanwhile, the lower die plate can be blocked and positioned through ascending of the first positioning plate and the second positioning plate.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product production equipment, in particular to a compression molding device used for producing plastic products. Background Art

[0002] Plastic products are a general term for daily and industrial products made from plastic as the main raw material. In the compression molding device used in the production of plastic products, the plastic is generally pressed into a specific shape through the extrusion cooperation of the upper mold and the lower mold.

[0003] In this regard, China's patent application number: CN113386294B discloses a compression molding device for the production of plastic products, including: a machine body, a mounting space is provided in the middle of the machine body, and the mounting space has a top wall and a bottom wall; an upper mold assembly, the upper mold assembly includes a driving member and an upper mold plate, the driving member is fixedly arranged on the top wall of the mounting space, the upper mold plate is installed on the output end of the driving member, and the driving member can drive the upper mold plate to move vertically; a lower mold assembly, the lower mold assembly includes a rotating disk and a plurality of lower mold plates, the rotating disk is horizontally arranged and rotatably installed on the bottom wall of the mounting space, and the plurality of lower mold plates are fixedly arranged on the upper surface of the rotating disk and are evenly distributed along the circumference of the rotating disk; by providing a plurality of lower mold plates, the plurality of lower mold plates can continuously cooperate with the upper mold plate to complete the compression molding action. In a set of equipment, the compression molding action and the loading and unloading actions of plastic products can be carried out simultaneously, which greatly improves the compression molding efficiency of plastic products.

[0004] However, in actual use, when the driving ring drives the rotating disk to rotate for a long time, it will produce certain wear, and the threaded groove and the linear groove will also produce wear. When the rotating disk rotates subsequently, there will be a certain error in the cooperation between the upper and lower templates. Therefore, the upper and lower templates cannot be fully adapted, which will affect the quality of subsequent compression molding. At the same time, after the compression molding operation is completed, the operator is required to manually take out and load the molded product as a whole. Therefore, the normal operation sequence cannot be met, and the overall operation has limitations. Therefore, it has become an urgent problem to be solved for us to improve and perfect the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a compression molding device for the production of plastic products, so as to solve the problem raised in the above background technology that when the driving ring drives the rotating disk to rotate for a long time, a certain amount of wear will be generated, and the threaded groove and the linear groove will also be worn. When the rotating disk rotates subsequently, there will be a certain error in the cooperation between the upper and lower templates. Therefore, the upper and lower templates cannot be fully adapted, which will affect the quality of subsequent compression molding. At the same time, after the compression molding operation is completed, the operator is required to manually take out and load the product after compression molding as a whole, so the normal operation sequence cannot be met, and the overall operation has limitations.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a compression molding device for producing plastic products, comprising a base, a support plate fixedly connected to the back of the base, a control panel fixedly connected to the right surface of the support plate, a first conveying frame installed on the upper surface of the base, a lower template provided on the surface of the first conveying frame, side blocks fixedly connected to the front and rear surfaces of the lower template, a hydraulic cylinder installed on the lower end surface of the support plate, an upper template installed on the lower end of the hydraulic cylinder, a mounting plate installed on the output end surface of the hydraulic cylinder, a first positioning plate and a second positioning plate sequentially inserted and installed inside the base from front to back, and a first lifting mechanism provided at the lower end of the first positioning plate; The first bevel gear column is installed in the lower surface of the first lifting mechanism, the outer surface of the first bevel gear column is meshed with the first bevel gear, the inner part of the first bevel gear is installed with a rotating column, the outer surface of the rotating column is installed with a second bevel gear, the top surface of the second bevel gear is fixedly connected with the second bevel gear column, the upper surface of the second bevel gear column is fixedly connected with the second lifting mechanism, the upper surface of the second lifting mechanism is fixedly connected with the lower surface of the second positioning plate, the first transmission mechanism is installed on the back of the rotating column, the gear column is installed on the back of the first transmission mechanism, the front surface of the first transmission mechanism is installed with a mounting frame, the mounting frame is installed in the inside of the base, the left side surface of the gear column is meshed with a pressing rack plate, the lower end of the pressing rack plate is fixedly connected with a bottom ring, the lower surface of the bottom ring is provided with a spring body, the lower end of the spring body is installed with a mounting cylinder, the mounting cylinder and the bottom ring are adapted to each other, and the inner bottom wall of the mounting cylinder is installed with a telescopic rod.

[0007] Preferably, the pressing rack plate is installed on the lower surface of the mounting plate, and the pressing rack plate penetrates through the interior of the base for installation.

[0008] Preferably, the first lifting mechanism and the second lifting mechanism are both composed of a rotating cylinder, an arc groove, a convex column and a telescopic column, the first bevel gear, the rotating column, the second bevel gear and the second lifting mechanism are all installed inside the base, and the right side surface of the hydraulic cylinder fits the left side surface of the first positioning plate.

[0009] Preferably, two groups of telescopic rods are provided, and the two groups of telescopic rods are installed on both sides of the spring body, and a mounting ring is installed at the lower end of the mounting tube.

[0010] Preferably, a turning frame is installed on the right side of the first conveying frame, and the right side of the turning frame is fixedly connected to the second conveying frame.

[0011] Preferably, a second transmission mechanism is installed on the back side of the first transmission mechanism, and a connecting shaft is installed on the right side of the second transmission mechanism that passes through the base.

[0012] Preferably, a rotating shaft is installed at the front end of the connecting shaft, a moving plate is installed on the left side of the rotating shaft, and the moving plate and the turning frame are adapted to each other.

[0013] Preferably, a groove is provided on the surface of the moving board, a movable shaft is inserted and installed on the inner wall of the moving board, a resistance plate is installed on the outer surface of the movable shaft, a striking block is fixedly connected to the upper surface of the resistance plate, and a counterweight block is fixedly connected to the lower surface of the resistance plate.

[0014] Preferably, a positioning block is installed on the back side of the second transmission mechanism, and the positioning block is installed on the surface of the support plate.

[0015] Preferably, the outer surfaces of the first bevel gear column and the second bevel gear column are both installed with limit frames.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the compression molding device for the production of plastic products is used, multiple sets of lower templates are first placed on the surface of the first conveyor frame for conveying, and the interior of the lower template has plastic to be compressed, and then the hydraulic cylinder is started to drive the upper template to move slowly downward. When the hydraulic cylinder drives the upper template to move downward, the mounting plate will also press the lower pressing rack plate downward, and the lower pressing rack plate will mesh with the gear column, and then the gear column will drive the first transmission mechanism to rotate, and then the first transmission mechanism will drive the rotating column to rotate, and at this time the rotating column drives the first bevel gear column and the second bevel gear column to rotate respectively, and then the first bevel gear column and the first bevel gear column are engaged with each other. The two conical gear columns respectively drive the first lifting mechanism and the second lifting mechanism to rotate, at this time, the telescopic columns inside the first lifting mechanism and the second lifting mechanism will move upward, and the rotation of the first lifting mechanism and the second lifting mechanism can drive the first positioning plate and the second positioning plate to move upward inside the base. When the first positioning plate and the second positioning plate move upward, the right side of the side block will contact the left side surface of the first positioning plate and the second positioning plate, so that the lower template can be blocked to wait for the upper template to perform the extrusion and molding operation, so that the overall coordination effect is better, and the lower template can be blocked on the surface of the first conveying frame while the upper template is descending, and The first positioning plate and the second positioning plate also have a positioning effect, which can ensure that the upper template can adapt and squeeze with the lower template every time it descends. When the upper template and the lower template complete the squeezing operation, the hydraulic cylinder will drive the upper template to rise, and the lower pressure rack plate will also rise. When the lower pressure rack plate descends, the bottom ring will also descend inside the mounting cylinder, thereby squeezing the spring body inside the mounting cylinder. When the lower pressure rack plate rises, the spring body will release the elastic state and assist the lower pressure rack plate to rise. Due to the elasticity of the spring body, the gear column rotates faster at this time, and the gear column will rotate in the opposite direction. Then the first The transmission mechanism and the rotating column both move in opposite directions, the telescopic columns inside the first lifting mechanism and the second lifting mechanism will move downward, and the first positioning plate and the second positioning plate will also descend, thereby continuing to transport the lower template that has completed the compression molding operation, so that this operation can be cyclically operated. When the upper template continues to descend, the first positioning plate and the second positioning plate will continue to rise to block and position the lower template on the surface of the first conveyor frame, facilitating the compression molding operation. This design can continuously move the lower template for cyclic compression molding operations, and can also block and position the lower template by rising the first positioning plate and the second positioning plate, reflecting the functionality of the design.

[0017] 2. The compression molding device for the production of plastic products, after the plastic inside the lower template completes the compression molding operation, the upper template is in an ascending state, the first positioning plate and the second positioning plate descend, the first conveyor frame continues to drive the lower template to move and convey, and then the lower template moves to the surface of the flip frame, the lower template will directly fall on the surface of the moving plate, and when the upper template rises, the first transmission mechanism is in a reverse rotation state, and then the first transmission mechanism will drive the second transmission mechanism to rotate, and then the second transmission mechanism will drive the connecting shaft to rotate, and then the connecting shaft will drive the rotating shaft to rotate clockwise, and then the moving plate will also rotate, and at this time the moving plate rotates to flip the lower template, so that the lower template will flip 180 degrees on the surface of the second conveyor frame, and when the moving plate rotates more than 90 degrees, the design of the movable shaft can make the resistance plate rotate, and then the knocking block will knock the flipped lower template. The top surface, that is, the lower surface of the original lower template, can assist in the discharge of the plastic after compression molding inside the lower template by knocking with the knocking block, avoiding damage to the material caused by manual material removal, and also reducing the manual operation time. Subsequently, the lower template and the demolded material are transported by the second conveyor rack, and the overall operation efficiency is high. Subsequently, after the upper template performs the next set of compression molding operations, the first positioning plate and the second positioning plate rise, so that the first transmission mechanism rotates. At this time, the connecting shaft will rotate counterclockwise, so that the rotating shaft and the moving plate will also rotate counterclockwise and return to the inside of the flip frame. The contact plate inside the moving plate has gravity at the lower end of the contact plate through the cooperation of the movable shaft and the counterweight block, so that it can also automatically return to the inside of the groove. This design can move and convey the lower template that has been compression molded, and can flip the lower template to demold and take out materials during the conveying process, and has continuity when used as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the splitting of the upper template and the lower template structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the first positioning plate and the first transmission mechanism structure of the present invention; Figure 4 It is a three-dimensional schematic diagram of the rotating column and the pressing rack plate structure of the present invention; Figure 5 It is a three-dimensional schematic diagram of the pressing rack plate and the mounting cylinder structure of the present invention; Figure 6 It is a schematic diagram of the disassembly of the pressing rack plate and the mounting cylinder structure of the present invention; Figure 7 It is a three-dimensional schematic diagram of the structure of the flip frame and the moving board of the present invention; Figure 8 It is a three-dimensional schematic diagram of the structure of the moving board and the contact board of the present invention; Fig. 9 It is a schematic diagram of the disassembly of the moving plate and the resistance plate structure of the present invention.

[0019] In the figure: 1, base; 2, support plate; 3, control panel; 4, first conveyor frame; 5, lower template; 6, side block; 7, hydraulic cylinder; 8, upper template; 9, mounting plate; 10, first positioning plate; 11, first lifting mechanism; 12, first bevel gear column; 13, first bevel gear; 14, rotating column; 15, second bevel gear; 16, second lifting mechanism; 17, second positioning plate; 18, first transmission mechanism; 19, gear column; 20, mounting frame; 21, lower pressure rack plate; 22, bottom ring; 23, spring body; 24, telescopic rod; 25, mounting cylinder; 26, mounting ring; 27, flip frame; 28, second conveyor frame; 29, second transmission mechanism; 30, connecting shaft; 31, rotating shaft; 32, moving plate; 33, groove; 34, movable shaft; 35, contact plate; 36, knocking block; 37, counterweight block; 38, positioning block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0021] See also Figure 1-Figure 9 , an embodiment provided by the present invention: A compression molding device for producing plastic products. The control panel 3, hydraulic cylinder 7, second transmission mechanism 29 and counterweight block 37 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are all existing technologies well known to those skilled in the art, so they will not be repeated here. It includes a base 1, a support plate 2 is fixedly connected to the back of the base 1, a control panel 3 is fixedly connected to the right surface of the support plate 2, a first conveying frame 4 is installed on the upper surface of the base 1, a lower template 5 is provided on the surface of the first conveying frame 4, and side blocks 6 are fixedly connected to the front and rear surfaces of the lower template 5, a hydraulic cylinder 7 is installed on the lower end surface of the support plate 2, an upper template 8 is installed on the lower end of the hydraulic cylinder 7, a mounting plate 9 is installed on the output end surface of the hydraulic cylinder 7, and the interior of the base 1 is provided with a plurality of support plates 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 64, 65, 67, 68, 69, A first positioning plate 10 and a second positioning plate 17 are sequentially inserted and installed from front to back, a first lifting mechanism 11 is arranged at the lower end of the first positioning plate 10, a flip frame 27 is installed on the right side of the first conveying frame 4, a second conveying frame 28 is fixedly connected to the right side of the flip frame 27, a second transmission mechanism 29 is installed on the back side of the first transmission mechanism 18, a connecting shaft 30 is installed on the right side of the second transmission mechanism 29 that passes through the base 1, a rotating shaft 31 is installed at the front end of the connecting shaft 30, a moving plate 32 is installed on the left side of the rotating shaft 31, the moving plate 32 and the flip frame 27 are adapted to each other, a groove 33 is provided on the surface of the moving plate 32, a movable shaft 34 is inserted and installed on the inner side wall of the moving plate 32, a contact plate 35 is installed on the outer surface of the movable shaft 34, and the upper A striking block 36 is fixedly connected to the surface, a counterweight block 37 is fixedly connected to the lower surface of the contact plate 35, a positioning block 38 is installed on the back of the second transmission mechanism 29, and the positioning block 38 is installed on the surface of the support plate 2. Since the gear column 19 rotates faster when the spring body 23 returns to its original position, the gear column 19 drives the first transmission mechanism 18 to rotate in the opposite direction faster, so that the moving plate 32 rotates faster at this time, that is, the contact plate 35 and the striking block 36 rotate faster, so the striking block 36 and the contact plate 35 have a relatively large force when they contact the top surface of the flipped lower template 5, which can assist the plastic inside the lower template 5 to be demolded, and the overall demolding speed is faster. After the plastic inside the lower template 5 completes the compression molding operation, the upper template 8 is in the rising state. State, the first positioning plate 10 and the second positioning plate 17 descend, the first conveyor frame 4 continues to drive the lower template 5 to move and convey, and then the lower template 5 moves to the surface of the flip frame 27, and the lower template 5 will directly fall on the surface of the moving plate 32, and when the upper template 8 rises, the first transmission mechanism 18 is in a reverse rotation state, and then the first transmission mechanism 18 will drive the second transmission mechanism 29 to rotate, and then the second transmission mechanism 29 will drive the connecting shaft 30 to rotate, and then the connecting shaft 30 will drive the rotating shaft 31 to rotate clockwise, and then the moving plate 32 will also rotate, and at this time the moving plate 32 rotates to flip the lower template 5, so that at this time the lower template 5 will flip one hundred and eighty degrees on the surface of the second conveyor frame 28, when the moving plate 32 rotates more than ninety degrees,At this time, the design of the movable shaft 34 can make the contact plate 35 rotate, and then the knocking block 36 will knock the top surface of the flipped lower template 5, that is, the lower surface of the original lower template 5, and the knocking of the knocking block 36 can assist the plastic after compression molding inside the lower template 5 to be discharged, thereby avoiding damage to the material caused by manual material removal, and also reducing the manual operation time. Subsequently, the lower template 5 and the demolded material are transported by the second conveying frame 28, and the overall operation efficiency is high. Subsequently, after the upper template 8 performs the next set of compression molding operations, the first positioning plate 10 and the second positioning plate 17 rises, so that the first transmission mechanism 18 rotates, and at this time the connecting shaft 30 rotates counterclockwise, so that the rotating shaft 31 and the moving plate 32 also rotate counterclockwise and return to the inside of the flip frame 27, and the contact plate 35 inside the moving plate 32 has gravity at the lower end through the cooperation of the movable shaft 34 and the counterweight block 37, so that it can also automatically return to the inside of the groove 33. This design can move and transport the lower mold plate 5 that has been pressed, and can flip the lower mold plate 5 to demould and take out materials during the transportation process, and the overall use is coherent;, A first bevel gear column 12 is installed on the lower surface of the first lifting mechanism 11, the outer surface of the first bevel gear column 12 is meshed with the first bevel gear 13, a rotating column 14 is installed inside the first bevel gear 13, the outer surface of the rotating column 14 is installed with the second bevel gear 15, the top surface of the second bevel gear 15 is fixedly connected with the second bevel gear column, the upper surface of the second bevel gear column is fixedly connected with the second lifting mechanism 16, the upper surface of the second lifting mechanism 16 is fixedly connected with the lower surface of the second positioning plate 17, the back of the rotating column 14 is installed with the first transmission mechanism 18, the back of the first transmission mechanism 18 is installed with a gear column 19, the front surface of the first transmission mechanism 18 is installed with a mounting frame 20, the mounting frame 20 is installed inside the base 1, and the left side of the gear column 19 The side surface is meshedly connected with a pressing rack plate 21, and the lower end of the pressing rack plate 21 is fixedly connected with a bottom ring 22. A spring body 23 is provided on the lower surface of the bottom ring 22, and a mounting cylinder 25 is installed at the lower end of the spring body 23. The mounting cylinder 25 and the bottom ring 22 are adapted to each other, and a telescopic rod 24 is installed on the inner bottom wall of the mounting cylinder 25. The pressing rack plate 21 is installed on the lower surface of the mounting plate 9, and the pressing rack plate 21 penetrates the interior of the base 1 for installation. The first lifting mechanism 11 and the second lifting mechanism 16 are both composed of a rotating cylinder, an arc groove, a convex column and a telescopic column. The first bevel gear 13, the rotating column 14, the second bevel gear 15 and the second lifting mechanism 16 are all installed inside the base 1, and the right side surface of the hydraulic cylinder 7 fits the left side surface of the first positioning plate 10 , two groups of telescopic rods 24 are provided, and the two groups of telescopic rods 24 are installed on both sides of the spring body 23. The lower end of the mounting tube 25 is installed with a mounting ring 26. The outer surfaces of the first bevel gear column 12 and the second bevel gear column are both installed with a limit frame. First, multiple groups of lower templates 5 are placed on the surface of the first conveying frame 4 for conveying, and the interior of the lower template 5 has plastic to be pressed, and then the hydraulic cylinder 7 is started, and the upper template 8 is driven by the hydraulic cylinder 7 to move downward slowly. When the hydraulic cylinder 7 drives the upper template 8 to move downward, the mounting plate 9 will also press the lower rack plate 21 downward. At this time, the lower rack plate 21 will mesh with the gear column 19, and then the gear column 19 will drive the first transmission mechanism 18 to rotate, and then the first transmission mechanism 18 will drive the rotating column 14 to rotate At this time, the rotating column 14 drives the first bevel gear column 12 and the second bevel gear column to rotate respectively, and then the first bevel gear column 12 and the second bevel gear column drive the first lifting mechanism 11 and the second lifting mechanism 16 to rotate respectively. At this time, the telescopic columns inside the first lifting mechanism 11 and the second lifting mechanism 16 will move upward, and the rotation of the first lifting mechanism 11 and the second lifting mechanism 16 can drive the first positioning plate 10 and the second positioning plate 17 to move upward inside the base 1. When the first positioning plate 10 and the second positioning plate 17 move upward, the right side of the side block 6 will contact the left side surface of the first positioning plate 10 and the second positioning plate 17, so that the lower template 5 can be blocked to wait for the upper template 8 to perform the extrusion and compression molding operation, so that the overall coordination effect is better.When the upper template 8 is lowered, the lower template 5 can be blocked on the surface of the first conveying frame 4, and the first positioning plate 10 and the second positioning plate 17 also have a positioning effect, which can ensure that the upper template 8 can be adapted and squeezed with the lower template 5 every time it descends. When the upper template 8 and the lower template 5 complete the squeezing operation, the hydraulic cylinder 7 will drive the upper template 8 to rise, and the lower rack plate 21 will also rise. When the lower rack plate 21 descends, the bottom ring 22 will also descend inside the mounting tube 25, so that the spring body 23 inside the mounting tube 25 can be squeezed. When the lower rack plate 21 rises, the spring body 23 will release the elastic state, which can assist the lower rack plate 21 in ascending. Due to the elasticity of the spring body 23, the gear column 19 rotates at this time. The speed of movement is fast, at this time the gear column 19 will rotate in the opposite direction, then the first transmission mechanism 18 and the rotating column 14 will both move in the opposite direction, the telescopic columns inside the first lifting mechanism 11 and the second lifting mechanism 16 will move downward, and the first positioning plate 10 and the second positioning plate 17 will also descend, so that the lower template 5 that has completed the compression molding operation will continue to be transported, so that this operation can be cyclically operated. When the upper template 8 continues to descend, the first positioning plate 10 and the second positioning plate 17 will continue to rise to block and position the lower template 5 on the surface of the first conveying frame 4, which is convenient for the compression molding operation. This design can continuously move the lower template 5 to perform a cyclic compression molding operation, and at the same time, the lower template 5 can be blocked and positioned by the rise of the first positioning plate 10 and the second positioning plate 17.

[0022] Working principle: When the staff uses this device, first connect the device to an external power supply to provide power support for the device. When in use, first place multiple groups of lower templates 5 on the surface of the first conveyor frame 4 for conveying, and the interior of the lower template 5 has plastic to be pressed, then start the hydraulic cylinder 7, and drive the upper template 8 to move slowly downward through the hydraulic cylinder 7. When the hydraulic cylinder 7 drives the upper template 8 to move downward, the mounting plate 9 will also press the lower pressing rack plate 21 downward. At this time, the lower pressing rack plate 21 will mesh with the gear column 19, and then the gear column 19 will drive the first transmission mechanism 18 to rotate, and then the first transmission mechanism 18 will drive the rotating column 14 to rotate. At this time, the rotating column 14 drives the first bevel gear column 12 and the second bevel gear column to rotate respectively, and then the first bevel gear column 12 and the second bevel gear column drive the first lifting mechanism 11 and the second lifting mechanism 16 to rotate respectively. At this time, the telescopic columns inside the first lifting mechanism 11 and the second lifting mechanism 16 will move upward, and the rotation of the first lifting mechanism 11 and the second lifting mechanism 16 can drive the first positioning plate 10 and the second positioning plate 17 to move upward inside the base 1. When the first positioning plate 10 and the second positioning plate 17 move upward, the right side of the side block 6 will contact the left side surface of the first positioning plate 10 and the second positioning plate 17, so that the lower template 5 can be blocked. The first positioning plate 10 and the second positioning plate 17 also have a positioning effect, which can ensure that the upper template 8 can be adapted and squeezed with the lower template 5 each time it descends. When the upper template 8 and the lower template 5 complete the extrusion operation, the hydraulic cylinder 7 will drive the upper template 8 to rise, and the lower rack plate 21 will also rise. When the lower rack plate 21 descends, the bottom ring 22 will also descend inside the mounting tube 25, so that the spring body 23 inside the mounting tube 25 can be squeezed. When the lower rack plate 21 rises, the spring body 23 will The elastic state is released, which can assist the downward pressing rack plate 21 to perform the ascending operation. Due to the elasticity of the spring body 23, the gear column 19 rotates faster at this time. At this time, the gear column 19 will rotate in the opposite direction, and then the first transmission mechanism 18 and the rotating column 14 will both perform the opposite movement. The telescopic columns inside the first lifting mechanism 11 and the second lifting mechanism 16 will move downward, and the first positioning plate 10 and the second positioning plate 17 will also descend, so that the lower mold plate 5 that has completed the compression molding operation will continue to be transported, so that this operation can be cyclically operated. When the upper mold plate 8 continues to descend, the first positioning plate 10 and the second positioning plate 17 will continue to rise to block and position the lower mold plate 5 on the surface of the first conveying frame 4; After the plastic inside the lower template 5 completes the compression molding operation, the upper template 8 is in an ascending state, the first positioning plate 10 and the second positioning plate 17 descend, and the first conveyor frame 4 continues to drive the lower template 5 to move and convey, and then the lower template 5 moves to the surface of the flip frame 27, and the lower template 5 will directly fall on the surface of the moving plate 32, and when the upper template 8 rises, the first transmission mechanism 18 is in a reverse rotation state, and then the first transmission mechanism 18 will drive the second transmission mechanism 29 to rotate, and then the second transmission mechanism 29 will drive the connecting shaft 30 to rotate, and then the connecting shaft 30 will drive the rotating shaft 31 to rotate clockwise, and then the moving plate 32 will also rotate, and at this time the moving plate 32 rotates to flip the lower template 5, so that at this time the lower template 5 will flip one hundred and eighty degrees on the surface of the second conveyor frame 28, and when the moving plate 32 rotates more than ninety degrees, at this time, through the active The design of the movable shaft 34 can make the contact plate 35 rotate, and then the knocking block 36 will knock the top surface of the lower template 5 after the flip, that is, the lower surface of the original lower template 5. The knocking of the knocking block 36 can assist the plastic after compression molding inside the lower template 5 to be discharged, and then the lower template 5 and the demolded material are transported through the second conveying frame 28. After the upper template 8 performs the next set of compression molding operations, the first positioning plate 10 and the second positioning plate 17 rise, so that the first transmission mechanism 18 rotates. At this time, the connecting shaft 30 will rotate counterclockwise, so that the rotating shaft 31 and the moving plate 32 will also rotate counterclockwise and return to the inside of the flip frame 27. The contact plate 35 inside the moving plate 32 has gravity at the lower end through the cooperation of the movable shaft 34 and the counterweight block 37, so that it can also automatically return to the inside of the groove 33. The above is all the working principles of the present invention.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A compression molding device for producing plastic products, comprising a base, a support plate fixedly connected to the back of the base, a control panel fixedly connected to the right surface of the support plate, a first conveying frame installed on the upper surface of the base, a lower template provided on the surface of the first conveying frame, characterized in that: The front and rear surfaces of the lower template are both fixedly connected with side blocks, the lower end surface of the support plate is installed with a hydraulic cylinder, the lower end of the hydraulic cylinder is installed with an upper template, the output end surface of the hydraulic cylinder is installed with a mounting plate, the interior of the base is sequentially inserted with a first positioning plate and a second positioning plate from front to back, and the lower end of the first positioning plate is provided with a first lifting mechanism; The first bevel gear column is installed in the lower surface of the first lifting mechanism, the outer surface of the first bevel gear column is meshed with the first bevel gear, the inner part of the first bevel gear is installed with a rotating column, the outer surface of the rotating column is installed with a second bevel gear, the top surface of the second bevel gear is fixedly connected with the second bevel gear column, the upper surface of the second bevel gear column is fixedly connected with the second lifting mechanism, the upper surface of the second lifting mechanism is fixedly connected with the lower surface of the second positioning plate, the first transmission mechanism is installed on the back of the rotating column, the gear column is installed on the back of the first transmission mechanism, the front surface of the first transmission mechanism is installed with a mounting frame, the mounting frame is installed in the inside of the base, the left side surface of the gear column is meshed with a pressing rack plate, the lower end of the pressing rack plate is fixedly connected with a bottom ring, the lower surface of the bottom ring is provided with a spring body, the lower end of the spring body is installed with a mounting cylinder, the mounting cylinder and the bottom ring are adapted to each other, and the inner bottom wall of the mounting cylinder is installed with a telescopic rod.

2. A compression molding device for producing plastic products according to claim 1, characterized in that: The pressing rack plate is installed on the lower surface of the mounting plate, and the pressing rack plate penetrates through the interior of the base for installation.

3. A compression molding device for producing plastic products according to claim 1, characterized in that: The first lifting mechanism and the second lifting mechanism are both composed of a rotating cylinder, an arc groove, a convex column and a telescopic column. The first bevel gear, the rotating column, the second bevel gear and the second lifting mechanism are all installed inside the base, and the right side surface of the hydraulic cylinder fits the left side surface of the first positioning plate.

4. A compression molding device for producing plastic products according to claim 1, characterized in that: The telescopic rods are provided in two groups, and the two groups of telescopic rods are installed on both sides of the spring body, and the lower end of the installation tube is installed with a mounting ring.

5. A compression molding device for producing plastic products according to claim 1, characterized in that: A turning frame is installed on the right side of the first conveying frame, and a second conveying frame is fixedly connected to the right side of the turning frame.

6. A compression molding device for producing plastic products according to claim 1, characterized in that: A second transmission mechanism is installed on the back of the first transmission mechanism, and a connecting shaft is installed on the right side of the second transmission mechanism that passes through the base.

7. A compression molding device for producing plastic products according to claim 6, characterized in that: A rotating shaft is installed at the front end of the connecting shaft, a moving plate is installed on the left side of the rotating shaft, and the moving plate and the turning frame are adapted to each other.

8. A compression molding device for producing plastic products according to claim 7, characterized in that: A groove is provided on the surface of the moving board, a movable shaft is inserted and installed on the inner wall of the moving board, a resistance plate is installed on the outer surface of the movable shaft, a striking block is fixedly connected to the upper surface of the resistance plate, and a counterweight block is fixedly connected to the lower surface of the resistance plate.

9. A compression molding device for producing plastic products according to claim 6, characterized in that: A positioning block is installed on the back side of the second transmission mechanism, and the positioning block is installed on the surface of the support plate.

10. A compression molding device for producing plastic products according to claim 1, characterized in that: The outer surfaces of the first conical gear column and the second conical gear column are both equipped with limiting frames.

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