A plastic product processing compression molding device

Abstract

The present invention discloses a plastic product processing compression molding device, which relates to the field of plastic compression molding technology, and comprises a turntable, a support plate frame is fixedly connected to the surface of the turntable, a turntable is installed on the top of the turntable, a lower template is installed on the top and near the side of the turntable, a compression molding tank is installed in the middle of the top of the cross plate frame, a one-way feed valve pipe is fixedly connected to the surface of the compression molding tank, and the one-way feed valve pipe is installed on the side away from the hydraulic cylinder, an electric telescopic rod is installed inside the compression molding tank, and the telescopic end at the bottom of the electric telescopic rod is threadedly connected to a discharge straight pipe. The plastic product processing compression molding device can effectively inject the total amount of the discharge straight pipe into the inside through the rectangular feed port, thereby automatically adjusting the total amount of plastic required for individual plastic products during the compression molding operation, so that the compression molding device can adjust itself according to different plastic products, and realize compression molding processing of different plastic products.

Description

Technical Field

[0001] The invention relates to the technical field of plastic compression molding, in particular to a plastic product processing compression molding device. Background Art

[0002] Plastic products are widely used in daily life and industrial production, and their processing techniques include injection molding, extrusion, and compression molding. Among them, compression molding is a method of pressing plastic materials into shape by heating and pressure. However, the plastic feeding structure of existing compression molding devices is mostly independent of the downward pressure structure, and cannot be used synchronously with the pressure plate structure. It is even more impossible to effectively use the downward pressure of the pressure plate structure and the total amount of plastic injection to achieve the adjustment and control of the total amount of plastic die-casting, and it is impossible to adjust according to different plastic products to achieve compression molding of different plastic products. Most of them can only perform compression molding operations on a single model of plastic products, and have a single function. Summary of the invention

[0003] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a plastic product processing compression molding device, comprising a turntable, a support plate frame is fixedly connected to the surface of the turntable, a turntable is installed on the top of the turntable, a lower template is installed on the top of the turntable and close to the side, and the lower template is installed on the turntable in a circular array, and the lower template is rotatably installed with the turntable through the turntable, a hydraulic cylinder is fixedly installed on the top of the support plate frame, a horizontal plate frame is installed below the hydraulic cylinder, and the horizontal plate frame is installed on the front side of the support plate frame, and the horizontal plate frame is installed parallel to the top of the side position of the turntable;

[0004] A compression molding tank is installed in the middle of the top of the horizontal plate frame, and an upper mold plate is installed at the bottom of the horizontal plate frame and directly below the compression molding tank, and the upper mold plate is embedded and installed with the lower mold plate, and a groove is opened in the middle of the bottom of the upper mold plate;

[0005] The bottom of the transverse plate frame and both sides away from the support plate frame are equipped with lifting legs, and the transverse plate frame is lifted and installed with the turntable through the lifting legs. A loading plate is fixedly installed in the middle of the bottom end of the transverse plate frame, and two long sleeves are fixedly connected to the bottom of the loading plate in a centrally symmetrical shape. The compression molding tank is installed in an embedded manner with the loading plate, and a clamping plate is fixedly connected to the middle of the transverse plate frame and one side close to the support plate frame.

[0006] Preferably, a slide rail is fixedly installed on one side of the support frame close to the turntable, and there are two groups of slide rails, and the two groups of slide rails are installed on the support frame in a left-right symmetrical state, the card plate is clamped with the support frame through the slide rail, and the card plate is lifted and lowered along the slide rail on the support frame through the lifting legs at the bottom of the cross plate frame.

[0007] Preferably, a one-way feed valve tube is fixedly connected to the surface of the compression molding tank, and the one-way feed valve tube is installed on the side away from the hydraulic cylinder, an electric telescopic rod is installed on the inside of the compression molding tank, and the number of the electric telescopic rods is two, and the telescopic end at the bottom of the electric telescopic rod is threadedly connected to a straight feed pipe, and the straight feed pipe is inserted into the long sleeve through a mounting plate.

[0008] Preferably, a recovery spring is mounted on the straight tube for unloading, and the recovery spring is connected between the loading plate and the upper mold plate, and one end of the recovery spring is connected to the long sleeve, and the other end of the recovery spring is connected to the upper mold plate. A compression molding plate is embedded in the middle slot position at the bottom of the upper mold plate, and the compression molding plate is used to compression mold the plastic in the middle of the inner side of the lower mold plate.

[0009] Preferably, a heating plate is fixedly installed in the bottom plate of the compression molding tank, and the heating plate is used to heat the inner side of the compression molding tank. A shrinking tube is fixedly installed on the inner wall of the compression molding tank, and the shrinking tube is correspondingly installed at the output end of the one-way feed valve tube, and the shrinking end of the shrinking tube points to the inner side of the compression molding tank, wherein the straight feed pipe passes through the compression molding tank, the heating plate, the loading plate and the upper mold plate in sequence and is connected to the compression molding plate.

[0010] Preferably, a telescopic pressure rod is installed in the middle part of the inner side of the hydraulic cylinder, and the telescopic pressure rod is installed by lifting and lowering the hydraulic cylinder and the support plate frame. The bottom of the telescopic pressure rod is connected to the pressure plate plug through a coupling, and the electric telescopic rod is installed at the bottom of the pressure plate plug in a centrally symmetrical shape. The pressure plate plug is embedded and installed on the inner side of the compression molding tank. The straight tube for material discharge is installed by lifting and lowering the pressure plate plug through the electric telescopic rod. The straight tube for material discharge is installed by telescopically cooperating with the pressure plate plug and the compression molding tank through the electric telescopic rod on the pressure plate plug and the loading plate.

[0011] Preferably, a sealing cap is threadedly installed on the top of the compression molding tank, a vacuum seal is formed between the compression molding tank and the sealing cap, a telescopic pressure rod penetrates the sealing cap, a sealing ring is sleeved on the installation portion of the sealing cap and the compression molding tank, and the number of sealing rings is two, and both sealing rings are sleeved on the threaded installation portion of the sealing cap and the compression molding tank, so as to ensure the sealed installation between the compression molding tank and the sealing cap.

[0012] Preferably, a DC motor is fixedly mounted on the top of the upper die plate and near the middle, and a worm gear is fixedly mounted on the output end of the upper die plate.

[0013] Preferably, a rectangular feed port is provided on the surface of the straight feed tube, and the rectangular feed port is used to introduce plastic into the inner side of the straight feed tube, and the upper part of the rectangular feed port is exposed in the compression molding tank, and the lower part of the rectangular feed port is blocked in the long sleeve. A pressurizing chamber is provided near the middle of the inner side of the straight feed tube, and the diameter of the pressurizing chamber is smaller than the inner diameter of the straight feed tube, and is used to pressurize the plastic flowing through the pressurizing chamber. A convex annular wall is fixedly installed on the inner wall of the straight feed tube near the bottom, and the convex annular wall is annularly raised from the inner wall of the straight feed tube, and is used to provide a temporary anti-falling structure for the plastic when it is retained inside the straight feed tube.

[0014] Preferably, a worm is fixedly connected to the middle of the top of the compression molding disk, the worm penetrates the upper mold disk, and the worm is meshed with a worm wheel. The compression molding disk is lifted and lowered in the slot at the bottom of the upper mold disk through the cooperation of the worm wheel and the worm on the DC motor, so that the embedding positioning depth of the compression molding disk at the bottom of the upper mold disk can be changed; guide rods are fixedly connected to the top of the compression molding disk and close to the side, and the number of the guide rods is four, and the guide rods are connected to the top of the compression molding disk in a circular array, and the guide rods penetrate the upper mold disk, and the guide rods are used to provide vertical guidance for the lifting and lowering adjustment of the compression molding disk on the inner side of the upper mold disk; two telescopic tubes are installed on the top of the compression molding disk in a centrally symmetrical shape, and the bottom of the telescopic tubes is fixedly connected to the compression molding disk, and the telescopic tubes are connected to the bottom of the discharge straight tube.

[0015] The present invention provides a plastic product processing compression molding device, which has the following beneficial effects:

[0016] 1. The plastic product processing compression molding device, through the design of reducing the diameter of the pressurized material cavity, makes the plastic material subject to additional pressure when passing through this area, which helps to improve the fluidity and filling effect of the material. The design of the convex ring wall provides a temporary retention structure for the plastic material, effectively preventing the material from falling prematurely during the compression molding process, and improving the stability of the material in the mold cavity and the molding quality.

[0017] 2. The plastic product processing compression molding device can change the initial embedding depth of the compression molding tank at the bottom of the upper mold plate by activating a DC motor and utilizing the meshing transmission of the worm gear and the worm. Therefore, before the upper mold plate and the lower mold plate are molded together, the compression molding tank can automatically adjust the compaction thickness of the plastic, thereby achieving adjustment and change of plastic products of different thicknesses, and can compression mold plastic products of different thicknesses, thereby improving the practicality and functional diversity of the compression molding device.

[0018] 3. The plastic product processing compression molding device can change the size of the rectangular feed port opened on the surface of the discharge straight tube and exposed on the inner side of the compression molding tank by using an electric telescopic rod, so as to accurately control the total amount of plastic that can be effectively injected into the discharge straight tube through the rectangular feed port before the rectangular feed port is completely pressed down and stored in the long sleeve, thereby automatically adjusting the total amount of plastic required for individual plastic products during the compression molding operation, so that the compression molding device can adjust itself according to different plastic products and realize compression molding processing of different plastic products.

[0019] Fourth, the plastic product processing compression molding device realizes the smooth lifting and lowering movement of the clamping plate and the cross plate frame by installing a slide rail on the support frame, so that the upper mold plate and the lower mold plate can be accurately aligned, thereby improving the alignment accuracy of the mold and the dimensional accuracy of the product; in addition, the hydraulic cylinder drives the lifting and lowering of the compression molding tank, and the lifting legs synchronously drive the lifting and lowering of the upper mold plate, thereby ensuring that the pressure applied to the lower mold plate is uniform, which helps to improve the molding quality of the product.

[0020] 5. The plastic product processing compression molding device has high precision and high stability in heating and pressure control, and has good mold design and optimization performance, which can effectively improve the molding quality and production efficiency of plastic products. Various designs also ensure that the equipment is easy to operate, easy to maintain and highly adaptable, meeting the needs of different plastic product processing.

[0021] 6. The plastic product processing compression molding device realizes the precise lifting and lowering adjustment of the compression molding plate through the cooperation of the DC motor, worm gear and worm, and can adjust the positioning depth of the compression molding plate between the lower mold plate and the upper mold plate as needed, so as to realize the flexible processing of plastic products of different thicknesses and shapes, improve the precision and flexibility of compression molding, and improve the adaptability and production efficiency of the equipment. The mechanical transmission structure of the worm gear and worm ensures the stability of the lifting movement and the accuracy of positioning, and further improves the molding quality of the product.

[0022] 7. The plastic product processing compression molding device, through the guide rod, not only serves as a standard guide for the compression molding disc to be raised and lowered at the bottom of the upper mold plate, but can also serve as an auxiliary heat dissipation structure during the compression molding of the compression molding disc on the inner side of the lower mold plate, helping the plastic to be quickly formed on the inner side of the lower mold plate, accelerating the rapid molding of plastic products, and improving the production efficiency and production quality of plastic products; the telescopic tube serves as an auxiliary connection structure to maintain the connection between the compression molding disc and the discharge straight pipe when the compression molding disc is raised and lowered at the bottom of the upper mold plate, ensuring that the plastic can always be smoothly introduced between the lower mold plate and the compression molding disc, thereby ensuring the normal operation of the compression molding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the external structure of a plastic product processing compression molding device of the present invention;

[0024] Figure 2 It is a schematic diagram of the assembly structure of the transverse plate frame and the supporting plate frame of the present invention;

[0025] Figure 3 It is a schematic diagram of the partial assembly structure of the upper die plate and the telescopic pressure rod of the present invention;

[0026] Figure 4 It is a schematic diagram of the partial assembly structure of the upper mold plate and the loading plate of the present invention;

[0027] Figure 5 It is a schematic diagram of the partial assembly structure of the upper mold plate and the compression molding plate of the present invention;

[0028] Figure 6 It is a schematic diagram of the assembly structure of the compression molded tank and the tray of the present invention;

[0029] Figure 7 It is a schematic diagram of the partial assembly structure of the pressure plate plug on the inner side of the compression molding tank and the material discharge straight pipe of the present invention;

[0030] Figure 8 It is a schematic diagram of the partial disassembly structure of the compression molded disk of the present invention;

[0031] Fig. 9 It is a schematic diagram of the partial assembly structure of the blanking straight tube and the compression molding disk of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the straight tube for material feeding of the present invention.

[0033] In the figure: 1. turntable; 2. support plate frame; 3. turntable; 4. lower template; 5. hydraulic cylinder; 6. cross plate frame; 7. compression molding tank; 8. upper mold plate; 9. one-way feed valve tube; 10. electric telescopic rod; 11. unloading straight pipe; 12. rebound spring; 13. compression molding plate; 14. heating plate; 15. shrink tube; 21. slide rail; 51. telescopic pressure rod; 52. pressure plate plug; 61. lifting support leg; 62. loading plate; 63. clamping plate; 621. long sleeve; 71. sealing cover; 72. sealing rubber ring; 81. DC motor; 82. worm gear; 111. rectangular feed port; 112. pressurized material chamber; 113. convex ring wall; 131. worm; 132. guide rod; 133. telescopic tube. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0035] The first embodiment, as Figures 1 to 10 As shown, the present invention provides a technical solution: a plastic product processing compression molding device, comprising a turntable 1, a support plate frame 2 is fixedly connected to the surface of the turntable 1, a turntable 3 is installed on the top of the turntable 1, a lower template 4 is installed on the top of the turntable 3 and close to the side, and the lower template 4 is installed on the turntable 3 in a circular array, and the lower template 4 is rotatably installed with the turntable 1 through the turntable 3, a hydraulic cylinder 5 is fixedly installed on the top of the support plate frame 2, a horizontal plate frame 6 is installed below the hydraulic cylinder 5, and the horizontal plate frame 6 is installed on the front side of the support plate frame 2, and the horizontal plate frame 6 is installed parallel to the top of the side position of the turntable 3;

[0036] A compression molding tank 7 is installed at the middle of the top of the horizontal plate frame 6, and an upper mold plate 8 is installed at the bottom of the horizontal plate frame 6 and directly below the compression molding tank 7. The upper mold plate 8 is fitted with the lower mold plate 4, and a groove is opened in the middle of the bottom of the upper mold plate 8;

[0037] Lifting legs 61 are installed on the bottom of the transverse plate frame 6 and on both sides away from the support plate frame 2. The transverse plate frame 6 is lifted and installed with the turntable 3 through the lifting legs 61. A loading plate 62 is fixedly installed in the middle of the bottom end of the transverse plate frame 6. Two long sleeves 621 are fixedly connected to the bottom of the loading plate 62 in a centrally symmetrical shape. The compression molding tank 7 is installed in an embedded manner with the loading plate 62. A clamping plate 63 is fixedly connected to the middle of the transverse plate frame 6 and on one side close to the support plate frame 2.

[0038] A slide rail 21 is fixedly installed on one side of the support frame 2 close to the turntable 3, and there are two groups of slide rails 21, and the two groups of slide rails 21 are installed on the support frame 2 in a left-right symmetrical shape. The clamping plate 63 is clamped with the support frame 2 through the slide rail 21, and the clamping plate 63 is lifted and lowered along the slide rail 21 on the support frame 2 through the lifting legs 61 at the bottom of the cross plate frame 6.

[0039] A one-way feed valve tube 9 is fixedly connected to the surface of the compression molding tank 7, and the one-way feed valve tube 9 is installed on the side away from the hydraulic cylinder 5. An electric telescopic rod 10 is installed on the inner side of the compression molding tank 7, and the number of the electric telescopic rods 10 is two. The telescopic end at the bottom of the electric telescopic rod 10 is threadedly connected to a straight discharge tube 11, and the straight discharge tube 11 is inserted into the long sleeve 621 through the mounting plate 62.

[0040] A return spring 12 is mounted on the unloading straight tube 11, and the return spring 12 is connected between the loading plate 62 and the upper mold plate 8, and one end of the return spring 12 is connected to the long sleeve 621, and the other end of the return spring 12 is connected to the upper mold plate 8. A compression molding plate 13 is embedded in the middle slot at the bottom of the upper mold plate 8, and the compression molding plate 13 is used to compression mold the plastic in the middle of the inner side of the lower mold plate 4.

[0041] A heating plate 14 is fixedly installed in the bottom plate of the compression molding tank 7, and the heating plate 14 is used to heat the inner side of the compression molding tank 7. A shrinking tube 15 is fixedly installed on the inner wall of the compression molding tank 7, and the shrinking tube 15 is correspondingly installed at the output end of the one-way feed valve tube 9, and the shrinking end of the shrinking tube 15 points to the inner side of the compression molding tank 7, wherein the discharge straight pipe 11 passes through the compression molding tank 7, the heating plate 14, the loading plate 62 and the upper mold plate 8 in sequence and is connected to the compression molding plate 13.

[0042] A DC motor 81 is fixedly mounted on the top of the upper die plate 8 and near the middle thereof, and a worm gear 82 is fixedly mounted on the output end of the upper die plate 8 .

[0043] A rectangular feed port 111 is provided on the surface of the discharge straight tube 11, and the rectangular feed port 111 is used to introduce plastic into the inner side of the discharge straight tube 11, and the upper part of the rectangular feed port 111 is exposed in the compression molding tank 7, and the lower part of the rectangular feed port 111 is blocked in the long sleeve 621. A pressurizing chamber 112 is provided near the middle of the inner side of the discharge straight tube 11. The diameter of the pressurizing chamber 112 is smaller than the inner diameter of the discharge straight tube 11, and is used to pressurize the plastic flowing through the pressurizing chamber 112. A convex annular wall 113 is fixedly installed on the inner wall of the discharge straight tube 11 near the bottom, and the convex annular wall 113 is annularly raised from the inner wall of the discharge straight tube 11, and is used to provide a temporary anti-falling structure for the plastic when it is retained inside the discharge straight tube 11.

[0044] A worm 131 is fixedly connected to the middle of the top of the compression molding disk 13, the worm 131 penetrates the upper mold disk 8, and the worm 131 is meshed with the worm wheel 82. The compression molding disk 13 moves up and down in the groove at the bottom of the upper mold disk 8 through the worm wheel 82 and the worm 131 on the DC motor 81, which can change the embedded positioning depth of the compression molding disk 13 at the bottom of the upper mold disk 8; a guide rod 132 is fixedly connected to the top of the compression molding disk 13 and close to the side. The number of the guide rods 132 is four, and the guide rods 132 are connected to the top of the compression molding disk 13 in a circular array, and the guide rods 132 penetrate the upper mold disk 8, and the guide rods 132 are used to provide a vertical guiding effect for the lifting and lowering adjustment of the compression molding disk 13 on the inner side of the upper mold disk 8; two telescopic tubes 133 are installed on the top of the compression molding disk 13 in a centrally symmetrical shape, and the bottom of the telescopic tube 133 is fixedly connected to the compression molding disk 13, and the telescopic tube 133 is connected to the bottom of the discharge straight tube 11.

[0045] When in use, the turntable 1 is activated to drive the turntable 3 to rotate, so that the turntable 3 drives one of the lower templates 4 on its top to rotate clockwise to just below the upper mold plate 8; at this time, the plastic is transported to the inner side of the compression molding tank 7 in one direction through the one-way feed valve tube 9. After the total amount of plastic reaches the preset amount, the hydraulic cylinder 5 and the lifting leg 61 are synchronously activated, and the telescopic pressure rod 51 drives the pressure plate plug 52 to press down the inner side of the compression molding tank 7. On the one hand, the pressure plate plug 52 presses the discharge straight pipe 11 into the long sleeve 621 with the help of the electric telescopic rod 10, and on the other hand, the pressure plate plug 52 generates a downward pushing pressure on the inner side of the compression molding tank 7 to squeeze the plastic into the inner side of the discharge straight pipe 11 through the rectangular feed port 111. When the rectangular feed port 111 follows the downward movement of the discharge straight pipe 11 and is bent and blocked in the long sleeve 621, the plastic will automatically stop squeezing into the discharge straight pipe 11, and the plastic squeezed into the inner side of the discharge straight pipe 11 will stop squeezing. The upper mold plate 8 is moved downwards by the lifting legs 61, and the lower mold plate 8 is moved downwards by the lifting legs 61, so that the plastic is pressed onto the lower mold plate 4.

[0046] During use, the plastic products in the previous lower template 4 can be unloaded without obstacles in the next compression molding action. During this period, the built-in parts to be compression-molded in the plastic products can be filled into the lower template 4 to realize the compression molding requirements of such special products. By setting up multiple lower templates 4, multiple lower templates 4 can continuously cooperate with the upper mold plate 8 to complete the compression molding action. In one 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.

[0047] The electric telescopic rod 10 can be used to change the size of the opening of the rectangular feed port 111 on the surface of the discharge straight tube 11 exposed on the inner side of the compression molding tank 7, so as to accurately control the total amount of plastic that can be effectively injected into the discharge straight tube 11 through the rectangular feed port 111 before the rectangular feed port 111 is completely pressed down and stored in the long sleeve 621, thereby automatically adjusting the total amount of plastic required for individual plastic products during the compression molding operation, so that the compression molding device can adjust itself according to different plastic products to realize compression molding processing of different plastic products.

[0048] The pressurized cavity 112 is designed with a reduced diameter so that the plastic material is subjected to additional pressure when passing through this area, which helps to improve the fluidity and filling effect of the material. The design of the convex ring wall 113 provides a temporary retention structure for the plastic material, effectively preventing the material from falling prematurely during the compression molding process, and improving the stability of the material in the mold cavity and the molding quality.

[0049] By activating the DC motor 81 and utilizing the meshing transmission of the worm gear 82 and the worm 131, the initial engagement depth of the compression molding tank 7 at the bottom of the upper mold plate 8 can be changed. Thus, before the upper mold plate 8 and the lower mold plate 4 are closed, the compaction thickness of the plastic by the compression molding tank 7 can be adjusted by itself, thereby achieving adjustment and change of plastic products of different thicknesses, being able to compression mold plastic products of different thicknesses, and improving the practicality and functional diversity of the compression molding device.

[0050] Through the cooperation of the DC motor 81, the worm gear 82 and the worm 131, the precise lifting and lowering adjustment of the compression molding plate 13 is realized, and the positioning depth of the compression molding plate 13 between the lower mold plate 4 and the upper mold plate 8 can be adjusted as needed, so that the flexible processing of plastic products of different thicknesses and shapes can be realized, the precision and flexibility of compression molding are improved, and the adaptability and production efficiency of the equipment are improved. The mechanical transmission structure of the worm gear and the worm ensures the stability of the lifting and lowering movement and the accuracy of positioning, and further improves the molding quality of the product.

[0051] The guide rod 132 not only serves as a standard guide for the compression molding disk 13 to be raised and lowered at the bottom of the upper mold plate 8, but also serves as an auxiliary heat dissipation structure during the compression molding of the compression molding disk 13 on the inner side of the lower mold plate 4, thereby helping the plastic to be quickly molded on the inner side of the lower mold plate 4, accelerating the rapid molding of plastic products, and improving the production efficiency and quality of plastic products. The telescopic tube 133 serves as an auxiliary connection structure to maintain the connection between the compression molding disk 13 and the discharge straight tube 11 when the compression molding disk 13 is raised and lowered at the bottom of the upper mold plate 8, thereby ensuring that the plastic can always be smoothly introduced between the lower mold plate 4 and the compression molding disk 13, thereby ensuring the normal operation of the compression molding device.

[0052] In addition, by setting the guide rod 132 on the top of the compression molding plate 13, not only the vertical stability and accuracy of the compression molding plate 13 during the lifting movement are guaranteed; combined with the through-design of the guide rod 132 and the upper mold plate 8, it is ensured that the compression molding plate 13 will not tilt or deflect during the lifting process, further improving the molding accuracy and consistency of the plastic product. In addition, the circular array arrangement of the four guide rods enhances the structural strength and stability of the entire device, allowing the equipment to operate stably under high-load working conditions.

[0053] By installing the slide rail 21 on the support frame 2, the smooth lifting and lowering movement of the clamping plate 63 and the cross plate frame 6 is realized, so that the upper mold plate 8 and the lower mold plate 4 can be accurately aligned, thereby improving the alignment accuracy of the mold and the dimensional accuracy of the product; in addition, the hydraulic cylinder 5 drives the lifting and lowering of the compression molding tank 7, and the lifting support leg 61 synchronously drives the lifting and lowering of the upper mold plate 8, thereby ensuring that the pressure applied to the lower mold plate 4 is uniform, which helps to improve the molding quality of the product.

[0054] By means of the designed heating plate 14, after the heating plate 14 is activated, the plastic inside the compression molding tank 7 can be evenly heated, the fluidity of the plastic inside the compression molding tank 7 and the temperature of the plastic can be kept balanced, and the plastic can be prevented from condensing or stagnating and hindering the extrusion of the plastic into the lower feed straight tube 11; and the heating plate 14 can ensure the consistency of the temperature of the plastic material during the compression molding process, and avoid defects caused by uneven temperature in the product; and the action of the electric telescopic rod 10 pressing the pressure plate plug 52 down on the inner side of the compression molding tank 7 can cooperate with the lower feed straight tube 11 to allow the plastic material to enter the mold cavity stably and accurately, thereby improving the molding quality.

[0055] Through the design of the pressurized material chamber 112 and the convex annular wall 113, the fluidity and pressurization effect of the plastic material in the discharge straight tube 11 are effectively improved, ensuring that the plastic material can smoothly pass through the upper mold plate 8 into the lower mold plate 4. At the same time, during the return movement of the upper mold plate 8 and the lifting leg 61, the pressure plate plug 52 on the inner side of the compression molding tank 7 can be used to suck the plastic remaining in the discharge straight tube 11 back in time under the suction action of the pressure plate plug 52, so as to avoid the flowing plastic on the inner side of the discharge straight tube 11 under the action of heat conduction under the influence of the heating of the heating plate 14 to drip onto the turntable 3 or the lower mold plate 4, and utilize the pressurization of the pressurized material chamber 112 and the retention effect of the convex annular wall 113 on the plastic to temporarily return the plastic to the inner side of the discharge straight tube 11, thereby avoiding the plastic from dripping and contaminating the lower mold plate 4 to be subjected to the compression molding operation, thereby avoiding the hidden danger of plastic contaminating the lower mold plate 4.

[0056] The design of the shrink tube 15 and the one-way feed valve tube 9 ensures that the plastic material can smoothly enter the compression molding tank 7, while avoiding the backflow phenomenon, ensuring the one-way and continuity of the feed. The straight tube 11 for feeding runs through the compression molding tank 7, the heating plate 14, the tray 62 and the upper mold plate 8, realizing the full control of the plastic from feeding to molding, improving the automation and efficiency of the production process; at the same time, it also avoids the hidden danger of damage to the one-way feed valve tube 9 caused by the extrusion during the downward pressure of the pressure plate plug 52, ensuring that the one-way feed valve tube 9 can be used normally.

[0057] The second embodiment is based on the first embodiment. Figure 6 and Figure 7As shown, a telescopic pressure rod 51 is installed in the middle part of the inner side of the hydraulic cylinder 5, and the telescopic pressure rod 51 is lifted and lowered by the hydraulic cylinder 5 and the support frame 2, the bottom of the telescopic pressure rod 51 is connected to the pressure plate plug 52 through a coupling, and the electric telescopic rod 10 is installed at the bottom of the pressure plate plug 52 in a centrally symmetrical shape, the pressure plate plug 52 is embedded and installed on the inner side of the compression molding tank 7, the unloading straight pipe 11 is lifted and lowered by the electric telescopic rod 10 and the pressure plate plug 52, and the unloading straight pipe 11 is telescopically installed with the loading plate 62 through the electric telescopic rod 10 on the pressure plate plug 52 and the compression molding tank 7.

[0058] When in use, the design of the telescopic rod 51 and the plate plug 52 of the hydraulic cylinder 5 enables the plate plug 52 to move up and down under the drive of the hydraulic cylinder 5, thereby applying uniform pressure to the plastic material in the compression molding tank 7. The cooperation of the electric telescopic rod 10 and the plate plug 52 enables the straight tube 11 to be accurately raised and lowered during the compression molding operation, ensuring that the plastic material can evenly fill the mold cavity, thereby improving the density and quality of the plastic product. This design can effectively perform compression molding on the plastic material under different pressures and positions, and meet the processing requirements of plastic products of different types and sizes.

[0059] The third embodiment is based on the first and second embodiments. Figure 3 and Figure 6 As shown, a sealing cap 71 is threadedly installed on the top of the compression molding tank 7, and a vacuum seal is formed between the compression molding tank 7 and the sealing cap 71. The telescopic pressure rod 51 penetrates the sealing cap 71, and a sealing rubber ring 72 is sleeved on the installation position of the sealing cap 71 and the compression molding tank 7. There are two sealing rubber rings 72, and the two sealing rubber rings 72 are both sleeved on the threaded installation position of the sealing cap 71 and the compression molding tank 7, so as to ensure the sealed installation between the compression molding tank 7 and the sealing cap 71.

[0060] When in use, a sealing rubber ring 72 is provided between the compression molding tank 7 and the sealing cover 71 to achieve a vacuum sealing environment inside the compression molding tank 7. The vacuum sealing design can effectively prevent outside air from entering the compression molding tank 7, reduce oxidation and contamination caused by the contact of plastic with air during heating and compression molding, and improve the purity and quality of the product. In addition, the vacuum sealing can also enhance the pressure environment inside the compression molding tank 7, which is conducive to uniform compression and molding of the plastic material.

[0061] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A plastic product processing compression molding device, comprising a turntable (1), a support frame (2) being fixedly connected to the surface of the turntable (1), a turntable (3) being installed on the top of the turntable (1), a lower template (4) being installed on the top of the turntable (3) and close to the side, and the lower template (4) being installed on the turntable (3) in a circular array, and the lower template (4) being rotatably installed with the turntable (1) via the turntable (3), characterized in that: A hydraulic cylinder (5) is fixedly mounted on the top of the support plate frame (2), a transverse plate frame (6) is mounted below the hydraulic cylinder (5), and the transverse plate frame (6) is mounted on the front side of the support plate frame (2), and the transverse plate frame (6) is mounted parallel to the top of the side position of the turntable (3); A compression molding tank (7) is installed at the middle of the top of the horizontal plate frame (6), and an upper mold plate (8) is installed at the bottom of the horizontal plate frame (6) and directly below the compression molding tank (7), and the upper mold plate (8) is installed in a chiseled manner with the lower mold plate (4), and a groove is opened in the middle of the bottom of the upper mold plate (8); A one-way feed valve tube (9) is fixedly connected to the surface of the compression molding tank (7), and the one-way feed valve tube (9) is installed on a side away from the hydraulic cylinder (5). An electric telescopic rod (10) is installed inside the compression molding tank (7), and the number of the electric telescopic rods (10) is two. The telescopic end at the bottom of the electric telescopic rod (10) is threadedly connected to a straight feed tube (11), and the straight feed tube (11) is inserted into the long sleeve (621) through the mounting plate (62); A rectangular feed port (111) is provided on the surface of the straight feed tube (11), and the rectangular feed port (111) is used to introduce plastic into the inner side of the straight feed tube (11), and the upper part of the rectangular feed port (111) is exposed in the compression molding tank (7), and the lower part of the rectangular feed port (111) is shielded in the long sleeve (621). A pressurizing chamber (112) is provided near the middle of the inner side of the straight feed tube (11), and the diameter of the pressurizing chamber (112) is smaller than the inner diameter of the straight feed tube (11). A convex annular wall (113) is fixedly installed on the inner wall of the straight feed tube (11) near the bottom, and the convex annular wall (113) protrudes from the inner wall of the straight feed tube (11) in an annular shape.

2. A plastic product processing compression molding device according to claim 1, characterized in that: A slide rail (21) is fixedly mounted on one side of the support plate frame (2) close to the turntable (3), and the number of the slide rails (21) is two groups, and the two groups of the slide rails (21) are mounted on the support plate frame (2) in a left-right symmetrical manner, the clamping plate (63) is clamped with the support plate frame (2) through the slide rail (21), and the clamping plate (63) is lifted and lowered on the support plate frame (2) along the slide rail (21) through the lifting legs (61) at the bottom of the cross plate frame (6).

3. A plastic product processing compression molding device according to claim 2, characterized in that: The bottom of the transverse plate frame (6) and both sides away from the support plate frame (2) are equipped with lifting legs (61), and the transverse plate frame (6) is lifted and installed with the turntable (3) through the lifting legs (61). A loading plate (62) is fixedly installed in the middle of the bottom end of the transverse plate frame (6), and two long sleeves (621) are fixedly connected to the bottom of the loading plate (62) in a centrally symmetrical shape. The compression molding tank (7) is installed in a chimerical relationship with the loading plate (62), and a clamping plate (63) is fixedly connected to the middle of the transverse plate frame (6) and on one side close to the support plate frame (2).

4. A plastic product processing compression molding device according to claim 3, characterized in that: The straight tube (11) for discharging material is provided with a return spring (12), and the return spring (12) is connected between the loading plate (62) and the upper die plate (8), and one end of the return spring (12) is connected to the long sleeve (621), and the other end of the return spring (12) is connected to the upper die plate (8), and a compression plate (13) is fitted and installed in the middle slotted position at the bottom of the upper die plate (8).

5. A plastic product processing compression molding device according to claim 4, characterized in that: A heating plate (14) is fixedly installed in the bottom plate of the compression molding tank (7), and the heating plate (14) is used to heat the inner side of the compression molding tank (7). A shrinking tube (15) is fixedly installed on the inner wall of the compression molding tank (7), and the shrinking tube (15) is correspondingly installed at the output end of the one-way feed valve tube (9), and the shrinking end of the shrinking tube (15) points to the inner side of the compression molding tank (7), wherein the discharge straight tube (11) passes through the compression molding tank (7), the heating plate (14), the loading plate (62) and the upper mold plate (8) in sequence and is connected to the compression molding plate (13).

6. A plastic product processing compression molding device according to claim 1, characterized in that: A telescopic pressure rod (51) is installed at the middle of the inner side of the hydraulic cylinder (5), and the telescopic pressure rod (51) is installed to be lifted and lowered through the hydraulic cylinder (5) and the support plate frame (2). The bottom of the telescopic pressure rod (51) is connected to a pressure plate plug (52) through a coupling, and an electric telescopic rod (10) is installed at the bottom of the pressure plate plug (52) in a centrally symmetrical shape. The pressure plate plug (52) is embedded and installed on the inner side of the compression molding tank (7). The unloading straight pipe (11) is installed to be lifted and lowered through the electric telescopic rod (10) and the pressure plate plug (52). The unloading straight pipe (11) is installed to be telescopically installed with the loading plate (62) through the electric telescopic rod (10) on the pressure plate plug (52) and the compression molding tank (7).

7. A plastic product processing compression molding device according to claim 6, characterized in that: A sealing cover (71) is threadedly mounted on the top of the compression molding tank (7), a vacuum seal is formed between the compression molding tank (7) and the sealing cover (71), the telescopic pressure rod (51) and the sealing cover (71) are interpenetrated, a sealing rubber ring (72) is sleeved on the portion where the sealing cover (71) and the compression molding tank (7) are mounted, and the number of the sealing rubber rings (72) is two, and the two sealing rubber rings (72) are sleeved on the portion where the sealing cover (71) and the compression molding tank (7) are threadedly mounted.

8. A plastic product processing compression molding device according to claim 7, characterized in that: A DC motor (81) is fixedly mounted on the top of the upper die plate (8) and close to the middle thereof, and a worm gear (82) is fixedly mounted on the output end of the upper die plate (8).

9. A plastic product processing compression molding device according to claim 4, characterized in that: A worm (131) is fixedly connected to the middle of the top of the compression molding disk (13), the worm (131) penetrates the upper mold disk (8), and the worm (131) meshes with the worm wheel (82), and the compression molding disk (13) moves up and down in the slot at the bottom of the upper mold disk (8) through the cooperation of the worm wheel (82) and the worm (131) on the DC motor (81); guide rods (132) are fixedly connected to the top of the compression molding disk (13) and near the side, the number of the guide rods (132) is four, and the guide rods (132) are connected to the top of the compression molding disk (13) in a circular array, and the guide rods (132) penetrate the upper mold disk (8); a telescopic tube (133) is installed on the top of the compression molding disk (13) in a centrally symmetrical shape, the bottom of the telescopic tube (133) is fixedly connected to the compression molding disk (13), and the telescopic tube (133) is connected to the bottom of the discharge straight tube (11).

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