A plastic product processing compression molding device and use method thereof

Abstract

The present invention discloses a plastic product processing compression molding equipment and a method of using the same, and relates to the technical field of plastic product pressure molding, including a base, wherein a compression molding table is fixedly connected to the top of the base. In the present invention, the guide seat is driven to move by the rotation of a lead screw, and after the guide seat moves, the bevel gear 1 is used to drive the bevel gear 2 to rotate, so that the cutting ring moves to the top of the annular plate, and the cutting ring moves down to achieve cutting of the plastic product, without taking out the plastic product to adjust the cutting position, which can reduce the position offset during cutting, ensure the trimming effect, and is relatively simple to operate, which can shorten the processing time of the entire plastic product, and when the extension plate and the annular plate are driven to move up by the hydraulic push rod 2, the L-shaped frame drives the built-in plate to move, and the built-in plate moves up inside the lower mold, pushing the plastic product to move up, and the contact area with the plastic product can be increased by the annular plate and the built-in plate, and the stability of the plastic product when moving up is improved, thereby accelerating the separation of the plastic product from the lower mold.

Description

Technical Field

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

[0002] Compression molding is also known as compression molding. It is a process in which powdered, granular or fibrous plastic raw materials are placed into a mold cavity at molding temperature, and then the mold is closed and pressurized. The plastic fills the cavity under the action of heat and pressure, undergoes physical and chemical changes and solidifies, and finally the plastic product is demolded.

[0003] For example, Chinese patent CN221809528U discloses a compression molding device for producing plastic shells of plastic products, including a machine body, a keel frame welded on the top of the machine body, a hydraulic rod fixedly arranged on the inner wall of the keel frame, a connecting plate fixedly arranged on the bottom of the hydraulic rod, an upper mold fixedly arranged on the bottom of the connecting plate, a lower mold fixedly arranged on the top of the machine body, a pushing plate arranged in the inner cavity of the machine body, an adjusting mechanism arranged in the inner cavity of the machine body, and a heat dissipation mechanism arranged in the inner cavity of the keel frame.

[0004] In the above patent, although the problem of inconvenient mold removal after compression molding is solved by pushing the plate and the return spring, the plastic is subjected to pressure in the mold cavity, and part of the plastic will overflow the mold gap, thereby forming flash on the edge of the plastic product. The flash will affect the quality of the plastic product. When the plastic product is taken out of the mold and then placed in the cutting equipment for trimming, it is necessary to adjust the cutting position of the plastic product and then limit and fix it again, which increases the overall processing time of the plastic product. Summary of the invention

[0005] The object of the present invention is to provide a plastic product processing compression molding equipment and a method of using the same, so as to solve the problem proposed in the above background technology that the plastic is subjected to pressure in the mold cavity, and part of the plastic will overflow the mold gap of the mold, thereby forming flash on the edge of the plastic product. The flash will affect the quality of the plastic product. When the plastic product is taken out of the mold and then placed in the cutting equipment for trimming, it is necessary to adjust the cutting position of the plastic product and then limit and fix it again, which increases the overall processing time of the plastic product.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a plastic product processing compression molding equipment, comprising a base, a compression molding table is fixedly connected to the top of the base, a frame is fixedly connected to the top of the compression molding table, a side plate is fixedly connected to one side of the frame, a cutting mechanism is arranged on one side of the side plate, the cutting mechanism comprises a connecting piece, a cutting ring and a guide seat, the outer ring surface of the cutting ring is fixedly connected to the connecting piece, an electric push rod is inserted through the inside of the connecting piece, the electric push rod is fixedly connected to the connecting piece, a bevel gear 2 is fixedly connected to the bottom of the electric push rod, the bottom of the bevel gear 2 is rotatably connected to the guide seat, a bevel gear 1 is meshed with one side of the bevel gear 2, the output shaft of the motor 2 is fixedly connected to one side of the bevel gear 1, the bottom of the motor 2 is fixedly connected to the guide seat, and the guide seat is connected to a lead screw by a thread, one end of the lead screw is rotatably connected to a pad, the pad and the guide seat are slidably connected, a motor 3 is embedded on one side of the pad, and one end of the output shaft of the motor 3 is fixedly connected to the lead screw.

[0007] Preferably, the top of the pad is connected to a connecting plate by bolts, and an ejection assembly is provided on the top of the connecting plate. The ejection assembly includes an annular plate, two hydraulic push rods and a built-in plate. The bottom of the annular plate is overlapped with a lower mold, and the bottom of the lower mold is fixedly connected to the connecting plate.

[0008] Preferably, an extension plate is fixedly connected to one side of the annular plate, the bottom of the extension plate is fixedly connected to the second hydraulic push rod, and the bottom of the second hydraulic push rod is fixedly connected to the connecting plate.

[0009] Preferably, an L-shaped frame is inserted inside the extension plate, a limiting block is engaged with the top of the L-shaped frame, a bottom of the limiting block is engaged and connected with the extension plate, and a latch is inserted between the limiting block and the L-shaped frame.

[0010] Preferably, one end of the L-shaped frame is snap-connected with the built-in plate, the L-shaped frame passes through the side wall of the lower mold and is slidably connected with the lower mold, and a built-in block is overlapped at the bottom of the built-in plate, a connecting rod is fixedly connected to the bottom of the built-in block, and the bottom of the connecting rod is fixedly connected to the connecting plate.

[0011] Preferably, a guide rod is fixedly connected to the top of the pad, a support plate is slidably connected to the outer ring surface of the guide rod, and an upper mold is fixedly connected to the bottom of the support plate.

[0012] Preferably, the top of the support plate is fixedly connected to a connecting end of a hydraulic cylinder, the bottom of the hydraulic cylinder is fixedly connected to a fixing plate, and one side of the fixing plate is fixedly connected to the frame.

[0013] Preferably, a feeding assembly is provided on one side of the fixed plate, and the feeding assembly includes a barrel, a guide frame and a guide platform. The inner annular surface of the barrel is fixedly connected to a dividing plate, the bottom of the barrel is fixedly connected to a screw feeder, the bottom of the screw feeder is fixedly connected to the guide frame, one side of the guide frame is fixedly connected to a motor 1, and one end of the output shaft of the motor 1 is fixedly connected to the auger inside the screw feeder.

[0014] Preferably, the bottom of the guide platform is fixedly connected to the frame, the inner wall of the guide platform is slidably connected to the guide frame, and a hydraulic push rod is fixedly connected to one side of the guide frame, the outer ring surface of the hydraulic push rod is fixedly connected to a support frame, and one end of the support frame is fixedly connected to the base.

[0015] A method for using a plastic product processing compression molding device comprises the following steps: S1. The granular raw materials required for the production of plastic products are fed into the barrel, and the raw materials fall into the screw feeder through the barrel. The motor drives the auger inside the screw feeder to rotate, and the materials are transported to the end of the screw feeder. The materials enter the lower mold, and the guide frame is driven to move by the hydraulic push rod to separate the bottom of the screw feeder from the lower mold. S2, using the lower mold to heat the raw material. After the raw material is melted, the upper mold is driven downward by the hydraulic cylinder to extrude the raw material to complete the compression molding. After the compression molding, the upper mold is moved upward and reset; S3, using motor 3 and the lead screw to drive the guide seat to move, using motor 2 to drive bevel gear 1 to move, bevel gear 2 and the electric push rod to move synchronously, moving the cutting ring to the top of the lower mold, the cutting ring moves down to cut the edge of the plastic product, and resets the cutting ring after cutting is completed; S4. The second hydraulic push rod drives the extension plate and the annular plate to move up, and the built-in plate moves with the L-shaped frame to eject the plastic product from the lower mold. At this time, the finished product can be quickly taken out.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, one side of the connecting member is fixedly connected to the cutting ring, the connecting member is fixedly connected to the electric push rod, the second bevel gear is rotatably connected to the guide seat, the guide seat is driven to move by the rotation of the lead screw, and after the guide seat moves, the first bevel gear drives the second bevel gear to rotate, so that the cutting ring moves to the top of the annular plate, and the cutting ring moves down to cut the plastic product, without taking out the plastic product to adjust the cutting position, which can reduce the position deviation during cutting and ensure the trimming effect. The operation is relatively simple, and the overall processing time of the plastic product can be shortened, thereby improving the processing efficiency.

[0017] 2. In the present invention, the annular plate is fixedly connected to the extension plate, and the L-shaped frame is fixedly connected to the built-in plate. When the extension plate and the annular plate are driven to move upward by the second hydraulic push rod, the L-shaped frame drives the built-in plate to move, and the built-in plate moves upward inside the lower mold to push the plastic product upward. The annular plate and the built-in plate can increase the contact area with the plastic product, improve the stability of the plastic product when moving upward, thereby accelerating the separation of the plastic product from the lower mold, and the limit block can be used to limit the connection between the L-shaped frame and the extension plate, thereby facilitating the disassembly and replacement of the L-shaped frame and the built-in plate.

[0018] 3. In the present invention, the bottom of the barrel is fixedly connected to the spiral feeder, which is also fixedly connected to the guide frame. The material enters the spiral feeder through the barrel, and enters the lower mold through the conveyance of the auger inside the spiral feeder. The guide frame is driven to move by a hydraulic push rod, and the use position of the spiral feeder can be adjusted to avoid the spiral feeder interfering with the movement of the upper mold after loading. There is no need to manually add material to the lower mold, which can reduce the labor intensity of manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a plastic product processing compression molding device of the present invention; Figure 2 It is a schematic diagram of the connection structure between the hydraulic cylinder and the fixed plate of a plastic product processing compression molding equipment of the present invention; Figure 3 This is a schematic diagram of the installation structure of a spiral feeder of a plastic product processing compression molding device of the present invention; Figure 4 This is a schematic diagram of the installation of the upper mold structure of a plastic product processing compression molding device of the present invention; Figure 5 It is a schematic diagram of the connection between the connector and the cutting ring structure of a plastic product processing compression molding device of the present invention; Figure 6 This is a schematic diagram of the installation of the second structure of the bevel gear of a plastic product processing and compression molding equipment of the present invention; Figure 7 This is a schematic diagram of the extension plate structure of a plastic product processing compression molding device of the present invention; Figure 8 The present invention is a schematic diagram of the installation of an L-shaped frame structure of a plastic product processing compression molding device.

[0020] In the figure: 1. Frame; 2. Feeding assembly; 21. Barrel; 22. Guide frame; 23. Hydraulic push rod 1; 24. Support frame; 25. Guide table; 26. Motor 1; 27. Screw feeder; 3. Base; 4. Plastic molding table; 5. Support plate; 51. Hydraulic cylinder; 52. Fixed plate; 53. Pad; 54. Guide rod; 55. Upper mold; 56. Connecting plate; 57. Lower mold; 6. Side plate; 7. Cutting mechanism; 71. Connecting piece; 72. Cutting ring; 73. Motor 2; 74. Bevel gear 1; 75. Guide seat; 76. Lead screw; 77. Motor 3; 78. Electric push rod; 79. Bevel gear 2; 8. Ejector assembly; 81. Ring plate; 82. Extension plate; 83. Hydraulic push rod 2; 84. Built-in plate; 85. Built-in block; 86. Limit block; 87. Connecting rod; 88. L-shaped frame. DETAILED DESCRIPTION

[0021] 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 implementation regulations described 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.

[0022] Example 1: Reference Figure 1-Figure 6 As shown: a plastic product processing compression molding equipment, including a base 3, a compression molding table 4 is fixedly connected to the top of the base 3, the compression molding table 4 is fixedly connected to the frame 1, a side plate 6 is fixedly connected to one side of the frame 1, a cutting mechanism 7 is arranged on one side of the side plate 6, the cutting mechanism 7 includes a connecting piece 71, a cutting ring 72 and a guide seat 75, the outer ring surface of the cutting ring 72 is fixedly connected to the connecting piece 71, an electric push rod 78 is inserted through the inside of the connecting piece 71, the electric push rod 78 is fixedly connected to the connecting piece 71, and the bottom of the electric push rod 78 is fixedly connected to the connecting piece 71. It is connected to bevel gear No. 2 79, the bottom of bevel gear No. 2 79 is rotatably connected to guide seat 75, one side of bevel gear No. 2 79 is meshed with bevel gear No. 1 74, one side of bevel gear No. 1 74 is fixedly connected to the output shaft of motor No. 2 73, the bottom of motor No. 2 73 is fixedly connected to guide seat 75, and guide seat 75 is connected to lead screw 76 through threaded connection, one end of lead screw 76 is rotatably connected to pad 53, pad 53 and guide seat 75 are slidably connected, one side of pad 53 is embedded with motor No. 3 77, one end of the output shaft of motor No. 3 77 is fixedly connected to lead screw 76.

[0023] In this embodiment, the base 3 can be used to reinforce the bottom support of the compression molding table 4, the compression molding table 4 can be used to reinforce the top support of the frame 1, the pad 53 can be used to reinforce the installation of the motor three 77, and the pad 53 can be used to guide the movement of the guide seat 75. The motor three 77 is used to drive the screw 76 to rotate, which can provide power for the movement of the guide seat 75. The guide seat 75 can be used to support and reinforce the bottom of the bevel gear two 79. The meshing between the bevel gear one 74 and the bevel gear two 79 can be used to adjust the use direction and position of the cutting ring 72, thereby facilitating the movement of the cutting ring 72 to the top of the plastic product. The electric push rod 78 can be used to adjust the use height of the cutting ring 72, thereby driving the cutting ring 72 downward to achieve cutting of the plastic product.

[0024] Embodiment 2: According to Figure 1-Figure 8 As shown, the top of the pad 53 is connected to the connecting plate 56 by bolts, and the top of the connecting plate 56 is provided with an ejector assembly 8, which includes an annular plate 81, a second hydraulic push rod 83 and a built-in plate 84. The bottom of the annular plate 81 is overlapped with the lower mold 57, and the bottom of the lower mold 57 is fixedly connected to the connecting plate 56. An extension plate 82 is fixedly connected to one side of the annular plate 81, and the bottom of the extension plate 82 is fixedly connected to the second hydraulic push rod 83, and the bottom of the second hydraulic push rod 83 is fixedly connected to the connecting plate 56. An L-shaped frame 88 is inserted inside the extension plate 82, and the top of the L-shaped frame 88 is engaged with a limit block 86, and the bottom of the limit block 86 is engaged with the extension plate 82, and the limit block 86 and the L-shaped A latch is inserted between the frames 88, one end of the L-shaped frame 88 is snap-connected with the built-in plate 84, the L-shaped frame 88 passes through the side wall of the lower mold 57 and is slidably connected with the lower mold 57, and a built-in block 85 is overlapped at the bottom of the built-in plate 84, a connecting rod 87 is fixedly connected to the bottom of the built-in block 85, and the bottom of the connecting rod 87 is fixedly connected to the connecting plate 56, the top of the pad 53 is fixedly connected to the guide rod 54, the outer ring surface of the guide rod 54 is slidably connected to the support plate 5, the bottom of the support plate 5 is fixedly connected to the upper mold 55, the top of the support plate 5 is fixedly connected to the connecting end of the hydraulic cylinder 51, the bottom of the hydraulic cylinder 51 is fixedly connected to the fixed plate 52, and one side of the fixed plate 52 is fixedly connected to the frame 1.

[0025] A feeding assembly 2 is provided on one side of the fixed plate 52, and the feeding assembly 2 includes a barrel 21, a guide frame 22 and a guide platform 25. A dividing plate is fixedly connected to the inner ring surface of the barrel 21, a screw feeder 27 is fixedly connected to the bottom of the barrel 21, and the bottom of the screw feeder 27 is fixedly connected to the guide frame 22. A motor 26 is fixedly connected to one side of the guide frame 22, and one end of the output shaft of the motor 26 is fixedly connected to the auger inside the screw feeder 27. The bottom of the guide platform 25 is fixedly connected to the frame 1, and the inner wall of the guide platform 25 is slidably connected to the guide frame 22. A hydraulic push rod 23 is fixedly connected to one side of the guide frame 22, and a support frame 24 is fixedly connected to the outer ring surface of the hydraulic push rod 23, and one end of the support frame 24 is fixedly connected to the base 3.

[0026] In this embodiment, the connection plate 56 can be used to assist the installation of the lower mold 57 on the top of the pad 53. The connection plate 56 can support the bottom of the hydraulic push rod 83 to improve the stability of the hydraulic push rod 83 when in use. The hydraulic push rod 83 can be used to adjust the use height of the extension plate 82 and the annular plate 81, thereby driving the bottom of the annular plate 81 to separate from the lower mold 57. The L-shaped frame 88 can be used to connect the extension plate 82 and the built-in plate 84, thereby realizing the synchronous lifting of the built-in plate 84 when the extension plate 82 is lifted. The lowering of the inner plate 84 exerts an upward force on the bottom of the plastic product when the inner plate 84 moves upward, accelerating the separation of the plastic product from the lower mold 57. The limit block 86 can be used to initially limit the connection between the L-shaped frame 88 and the extension plate 82. The L-shaped frame 88 and the limit block 86 can be fixed by the latch, thereby preventing the L-shaped frame 88 from loosening during use. The bottom of the inner block 85 can be supported by the connecting rod 87 to achieve stable installation and use of the inner block 85. The inner block 85 can be used to limit the downward movement range of the inner plate 84. At the same time, the guide rod 54 can guide the lifting and lowering of the support plate 5, the hydraulic cylinder 51 can drive the lifting and lowering of the support plate 5 and the upper mold 55 to assist in the compression molding of the plastic products, and the stable installation of the hydraulic push rod 23 can be achieved through the support frame 24. The hydraulic push rod 23 can be used to drive the movement and adjustment of the guide frame 22, thereby changing the use position of the spiral feeder 27. When the spiral feeder 27 and the guide frame 22 move, the guide platform 25 can guide the movement of the guide frame 22, and the motor 26 can drive the auger inside the spiral feeder 27 to rotate, thereby realizing stable material transportation, and the material can be guided by the dividing plate inside the barrel 21 to reduce the blockage caused by the material entering the spiral feeder 27.

[0027] Embodiment 3: A method for using a plastic product processing compression molding device, comprising the following steps: Step 1: Feed the granular raw materials required for the production of plastic products into the barrel 21, and the granular raw materials fall into the screw feeder 27 through the barrel 21. The motor 26 drives the auger inside the screw feeder 27 to rotate, and the materials are transported to the end of the screw feeder 27. The materials enter the lower mold 57, and the guide frame 22 is driven to move by the hydraulic push rod 23 to separate the bottom of the screw feeder 27 from the lower mold 57; Step 2: Use the lower mold 57 to heat the raw material. After the raw material is melted, use the hydraulic cylinder 51 to drive the upper mold 55 to move downward to extrude the raw material to complete compression molding. After compression molding, the upper mold 55 moves upward to reset; Step 3: Use the motor 3 77 and the lead screw 76 to drive the guide seat 75 to move, use the motor 2 73 to drive the bevel gear 1 74 to move, and the bevel gear 2 79 and the electric push rod 78 move synchronously to move the cutting ring 72 to the top of the lower mold 57, and the cutting ring 72 moves downward to cut the edge of the plastic product, and resets the cutting ring 72 after the cutting is completed; Step 4: The hydraulic push rod 83 drives the extension plate 82 and the annular plate 81 to move upward, and the built-in plate 84 moves with the L-shaped frame 88 to eject the plastic product from the lower mold 57. At this time, the finished product can be quickly taken out.

[0028] The use method and working principle of this device are as follows: First, a heating element is installed inside the lower mold 57 to adjust the temperature of the inner cavity of the lower mold 57. The material enters the barrel 21 and can enter the cavity of the spiral feeder 27 through the through hole at the bottom of the barrel 21. The motor 26 is used to drive the auger inside the spiral feeder 27 to rotate and transport the material until the material moves to the end of the spiral feeder 27 and falls into the lower mold 57 from the discharge port at the bottom of the spiral feeder 27. After the material is discharged, the guide frame 22 is driven to move to the side away from the lower mold 57 by the contraction of the hydraulic push rod 23, so that the bottom of the spiral feeder 27 is discharged. The upper part of the mold 57 is moved away, and then the heating element inside the lower mold 57 is controlled by an external control power supply to heat the lower mold 57 to melt the raw material quickly. The support plate 5 and the upper mold 55 are driven downward by the hydraulic cylinder 51, and the upper mold 55 is inserted into the lower mold 57. At this time, the molten material is located in the cavity formed by the inner wall of the lower mold 57 and the outer ring surface of the upper mold 55. The excess material overflows and reaches above the annular plate 81. The heating of the lower mold 57 is stopped, and the plastic product is driven to cool and form by an external device. The support plate 5 and the upper mold 55 are driven upward by the hydraulic cylinder 51, and the upper mold 55 is separated from the plastic product. At this time, the motor 3 77 is used to drive the lead screw 76 to rotate. Under the action of the thread, the lead screw 76 drives the guide seat 75 to move along the pad 53 until one side of the guide seat 75 overlaps with the side wall of the pad 53. The motor 2 73 is used to drive the bevel gear 1 74 to rotate. The bevel gear 1 74 meshes with the bevel gear 2 79, driving the bevel gear 2 79 and the electric push rod 78 to rotate synchronously, and the cutting ring 72 is moved above the annular plate 81. At this time, the center of the cutting ring 72 coincides with the center of the annular plate 81. Then, the electric push rod 78 is used to drive the cutting ring 72 to move downward, so that the cutting ring 72 performs a circular cutting on the edge of the plastic product. After the cutting is completed, the electric push rod 78 drives the cutting ring 72 to move upward, the bevel gear 2 79 rotates in the opposite direction, and the guide seat 75 moves in the opposite direction, thereby reducing the interference of the cutting ring 72 with the subsequent processing of the plastic product. The extension plate 82 is driven upward by the hydraulic push rod 83, and the annular plate 81 and the extension plate 82 move synchronously. At this time, the bottom of the annular plate 81 is separated from the top of the lower mold 57, the L-shaped frame 88 moves upward along the inner wall of the lower mold 57, and the built-in plate 84 moves up along the inner ring surface of the lower mold 57, and its bottom is separated from the built-in block 85, pushing the plastic product out of the lower mold 57, accelerating the separation of the plastic product from the lower mold 57, and the plastic product can be quickly taken out.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic product processing compression molding device, comprising a base (3), the top of the base (3) being fixedly connected to a compression molding table (4), the top of the compression molding table (4) being fixedly connected to a frame (1), characterized in that: A side plate (6) is fixedly connected to one side of the frame (1); a cutting mechanism (7) is provided on one side of the side plate (6); the cutting mechanism (7) comprises a connecting piece (71), a cutting ring (72) and a guide seat (75); an outer ring surface of the cutting ring (72) is fixedly connected to the connecting piece (71); an electric push rod (78) is inserted through the inside of the connecting piece (71); the electric push rod (78) is fixedly connected to the connecting piece (71); a bevel gear 2 (79) is fixedly connected to the bottom of the electric push rod (78); the bevel gear 2 (79) is rotatably connected to the guide seat (75) The bevel gear 2 (79) is dynamically connected, one side of the bevel gear 1 (74) is meshed with the bevel gear 1 (74), one side of the bevel gear 1 (74) is fixedly connected with the output shaft of the motor 2 (73), the bottom of the motor 2 (73) is fixedly connected to the guide seat (75), and the guide seat (75) is connected to a lead screw (76) by a thread, one end of the lead screw (76) is rotatably connected to a pad (53), the pad (53) and the guide seat (75) are slidably connected, one side of the pad (53) is embedded with the motor 3 (77), and one end of the output shaft of the motor 3 (77) is fixedly connected to the lead screw (76).

2. The plastic product processing compression molding equipment according to claim 1, characterized in that: The top of the pad (53) is connected to a connecting plate (56) by bolts, and an ejector assembly (8) is arranged on the top of the connecting plate (56). The ejector assembly (8) comprises an annular plate (81), a second hydraulic push rod (83) and a built-in plate (84). The bottom of the annular plate (81) is overlapped with a lower mold (57), and the bottom of the lower mold (57) is fixedly connected to the connecting plate (56).

3. The plastic product processing compression molding equipment according to claim 2, characterized in that: An extension plate (82) is fixedly connected to one side of the annular plate (81), the bottom of the extension plate (82) is fixedly connected to a second hydraulic push rod (83), and the bottom of the second hydraulic push rod (83) is fixedly connected to a connecting plate (56).

4. The plastic product processing compression molding equipment according to claim 3, characterized in that: An L-shaped frame (88) is inserted into the extension plate (82), a limit block (86) is engaged with the top of the L-shaped frame (88), a bottom of the limit block (86) is engaged with the extension plate (82), and a latch is inserted between the limit block (86) and the L-shaped frame (88).

5. The plastic product processing compression molding equipment according to claim 1, characterized in that: One end of the L-shaped frame (88) is snap-connected to the built-in plate (84); the L-shaped frame (88) penetrates the side wall of the lower mold (57) and is slidably connected to the lower mold (57); a built-in block (85) is overlapped at the bottom of the built-in plate (84); a connecting rod (87) is fixedly connected to the bottom of the built-in block (85); and the bottom of the connecting rod (87) is fixedly connected to the connecting plate (56).

6. The plastic product processing compression molding equipment according to claim 1, characterized in that: The top of the pad (53) is fixedly connected to a guide rod (54), the outer ring surface of the guide rod (54) is slidably connected to a support plate (5), and the bottom of the support plate (5) is fixedly connected to an upper mold (55).

7. The plastic product processing compression molding equipment according to claim 6, characterized in that: The top of the support plate (5) is fixedly connected to the connecting end of the hydraulic cylinder (51), the bottom of the hydraulic cylinder (51) is fixedly connected to a fixing plate (52), and one side of the fixing plate (52) is fixedly connected to the frame (1).

8. The plastic product processing compression molding equipment according to claim 7, characterized in that: A feeding assembly (2) is provided on one side of the fixed plate (52), and the feeding assembly (2) includes a barrel (21), a guide frame (22) and a guide platform (25); a dividing plate is fixedly connected to the inner annular surface of the barrel (21); a spiral feeder (27) is fixedly connected to the bottom of the barrel (21); the bottom of the spiral feeder (27) is fixedly connected to the guide frame (22); a motor 1 (26) is fixedly connected to one side of the guide frame (22); and one end of the output shaft of the motor 1 (26) is fixedly connected to an auger inside the spiral feeder (27).

9. The plastic product processing compression molding equipment according to claim 8, characterized in that: The bottom of the guide platform (25) is fixedly connected to the frame (1), the inner wall of the guide platform (25) is slidably connected to the guide frame (22), and a hydraulic push rod 1 (23) is fixedly connected to one side of the guide frame (22), the outer ring surface of the hydraulic push rod 1 (23) is fixedly connected to a support frame (24), and one end of the support frame (24) is fixedly connected to the base (3).

10. A method for using a plastic product processing compression molding device, characterized in that: A plastic product processing compression molding device according to any one of claims 1 to 9 is used, comprising the following steps: S1. The granular raw materials required for the production of plastic products are fed into the barrel (21), and the granular raw materials fall through the barrel (21) into the screw feeder (27). The motor 1 (26) drives the auger inside the screw feeder (27) to rotate, and the materials are transported to the end of the screw feeder (27). The materials enter the lower mold (57), and the guide frame (22) is driven to move by the hydraulic push rod 1 (23), so that the bottom of the screw feeder (27) is separated from the lower mold (57); S2, using the lower mold (57) to heat the raw material. After the raw material is melted, the upper mold (55) is driven downward by the hydraulic cylinder (51) to extrude the raw material to complete compression molding. After compression molding, the upper mold (55) is moved upward and reset; S3, using the motor three (77) and the lead screw (76) to drive the guide seat (75) to move, using the motor two (73) to drive the bevel gear one (74) to move, the bevel gear two (79) and the electric push rod (78) to move synchronously, and the cutting ring (72) is moved above the lower mold (57), and the cutting ring (72) is moved downward to cut the edge of the plastic product, and the cutting ring (72) is reset after the cutting is completed; S4, the second hydraulic push rod (83) drives the extension plate (82) and the annular plate (81) to move upward, and the inner plate (84) moves with the L-shaped frame (88) to eject the plastic product from the inside of the lower mold (57). At this time, the finished product can be quickly taken out.

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