Compression molding device for plastic product processing

Abstract

The invention provides a compression molding device for plastic product processing, and relates to the field of plastic compression molding processing. The compression molding device for plastic product processing comprises a processing table, a cooling device used for cooling and shaping the plastic product subjected to compression molding and a compression molding device used for compression molding and cutting off redundant plastic, a supporting foot stool used for supporting is installed at the bottom of the processing table, and a rotating seat is installed at the top of the processing table. According to the compression molding device for plastic product processing, after the hydraulic column drives the compression molding device to carry out compression molding, the compression molding device can automatically cut off redundant raw materials located on the outer side of the compression molding bottom mold, so that subsequent manual cutting is not needed, the subsequent processing steps are reduced, the processing efficiency is improved, and the production cost is reduced. The automatic water cooling and cooling functions are achieved, compression molding machining can be conducted all the time, compression molding work cannot be affected by cooling, discharging and feeding work, and therefore the machining efficiency is improved.

Description

Technical Field

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

[0002] Compression molding is a plastic processing method. The plate-shaped plastic raw material is first heated to soften the plastic plate, and then a mold is used to perform compression molding after softening to obtain the desired shape. It has the advantages of high processing efficiency, fast molding efficiency and fast cooling speed.

[0003] The utility model patent with application number CN202321757706.3 discloses a plastic parts hot pressing device, including a processing table, the upper surface of the processing table is fixedly connected to a heating table, the inner wall of the heating table is slidably connected to a lower mold, the upper surface of the processing table is fixedly connected to an "n"-shaped positioning frame, and the lower surface of the horizontal plate of the positioning frame is provided with a hydraulic telescopic rod. The plastic parts hot pressing device has a fast heat dissipation speed and high heat dissipation efficiency, thereby improving the efficiency of hot pressing of plastic parts.

[0004] During processing, the device can only process the next product after one product is completely cooled and demolded, resulting in low product processing efficiency. During cooling, only an air pump is used for cooling, which has low cooling efficiency. After compression molding, the device does not have an automatic trimming function, resulting in the need for manual trimming of the product at a later stage, which further increases the use of labor and affects processing efficiency. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the present invention provides a compression molding device for processing plastic products, which solves the problems of low hot pressing processing efficiency, low cooling efficiency and lack of automatic trimming function.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a compression molding device for processing plastic products, comprising a processing table, a cooling device for cooling and shaping the compression-molded plastic products, and a compression molding device for compression molding and shaping and cutting off excess plastic, the bottom of the processing table is equipped with a supporting footrest for support, the top of the processing table is equipped with a rotating seat, the bottom of the processing table is equipped with a driving motor for driving the rotating seat to rotate, the output end of the driving motor passes through the processing table and is installed with the bottom of the rotating seat, the top of the rotating seat is equipped with a compression molding bottom mold for compression molding, the interior of the compression molding bottom mold is provided with a cooling device for cooling and shaping, the top of the processing table is equipped with a mounting side frame on the right side, the top of the mounting side frame is equipped with a hydraulic column, the output end of the hydraulic column passes through the mounting side frame and extends to the bottom of the mounting side frame, and the bottom output end of the hydraulic column is provided with a compression molding device for compression molding and cutting off excess raw materials after molding.

[0009] Preferably, the cooling device includes an upper drainage chamber, an upper drainage pipe, a lower water injection chamber, a lower water injection pipe, a drainage ring chamber, a drainage connecting hole, a water injection connecting hole, a lower cooling chamber and a cooling circulation channel, the upper drainage chamber is opened inside the processing table, the upper drainage pipe is installed on the outer wall of the processing table and is located opposite to the upper drainage chamber, the lower water injection chamber is opened inside the processing table and is located below the upper drainage chamber, the lower water injection pipe is installed on the outer wall of the processing table and is located opposite to the lower water injection chamber, the drainage ring chamber is opened inside the rotating seat and is located outside the compression molding bottom mold, the drainage connecting hole is opened inside the rotating seat and is located outside the drainage ring chamber, the water injection connecting hole is opened at the bottom of the compression molding bottom mold, the lower cooling chamber is opened inside the compression molding bottom mold near the bottom, the lower cooling chamber is connected to the inside of the water injection connecting hole, and the cooling circulation channel is opened inside the compression molding bottom mold.

[0010] Preferably, the die pressing device includes a socket seat, a compression molding top mold, a support spring, a connecting spring, an upper ring seat, a limit groove, a limit clamp, a positioning bracket, a mounting gear, an inner shaft rod, a transmission spring, an outer ring, a positioning rod, a mounting sleeve and a cutting blade. The socket seat is socketed with the bottom end of the hydraulic column, the compression molding top mold is installed with the bottom of the socket seat through a thread, the top end of the support spring is installed with the bottom end of the hydraulic column, the bottom end of the support spring is in contact with the bottom inner wall of the compression molding top mold, the connecting spring is fixedly installed with the outer wall of the output end of the hydraulic column, the connecting spring is sleeved on the outside of the output end of the hydraulic column, and the upper ring seat is rotatably installed with the bottom end of the connecting spring through a bearing ring. The limit groove is opened on the outer wall of the hydraulic column, the limit clamp is installed on the inner wall of the upper ring seat, the limit clamp is clamped in the limit groove, the positioning bracket is installed at the bottom of the upper ring seat, the mounting gear is rotatably installed with the inner wall of the bottom end of the positioning bracket through a bearing, the inner shaft rod is installed at the axial position of the mounting gear, the transmission spring piece is installed with the outer wall of the inner shaft rod near the inner end, the outer ring is rotatably installed with the mounting gear through a bearing, the transmission spring piece is installed with the inner wall of the outer ring near the outer end, the positioning rod is installed with the outer wall of the outer ring, the mounting sleeve is rotatably installed with the positioning rod through a bearing, and the cutting blade is installed with the outer wall of the mounting sleeve.

[0011] Preferably, the upper drainage pipe is connected to the interior of the upper drainage chamber, the lower water injection pipe is connected to the interior of the lower water injection chamber, the lower end of the water injection connecting hole is at the same height as the lower water injection chamber, the drainage connecting hole is at the same height as the upper drainage chamber, and the upper drainage chamber and the lower water injection chamber are both in the shape of two-thirds of a circle as a whole.

[0012] Preferably, the cooling circulation channel consists of two inner and outer spiral channels, the top ends of the two spiral channels are connected, the lower end of the outer spiral channel is connected to the drainage ring cavity, and the lower end of the inner spiral channel is connected to the lower cooling cavity.

[0013] Preferably, the elastic supporting force of the supporting spring is greater than the pressure required for compression deformation.

[0014] Preferably, the lower end of the limiting groove is vertically installed, and the upper end of the limiting groove is spirally bent in a clockwise direction.

[0015] Preferably, the transmission spring piece is made of spring steel and is in a spiral shape.

[0016] Preferably, one end of the cutting blade away from the mounting sleeve is inclined rearward.

[0017] Preferably, a vortex spring is installed on the inner wall of the installation sleeve, the inner end of the vortex spring is installed on the outer wall of the positioning rod, and the outer end of the vortex spring is installed on the inner wall of the installation sleeve.

[0018] (III) Beneficial effects

[0019] The present invention provides a compression molding device for processing plastic products, which has the following beneficial effects:

[0020] 1. The compression molding device for processing plastic products cooperates with a driving motor and a hydraulic column. The driving motor drives the rotating seat and the compression molding bottom mold to rotate. The hydraulic column drives the compression molding device to press and mold the raw material plate inside the compression molding bottom mold. After pressing and molding, the rotating seat is controlled to rotate, driving the compression molding bottom mold after pressing and molding to leave the pressing area, so that the next compression molding bottom mold is moved to the bottom of the hydraulic column for processing, so that the molded product does not occupy the time of the pressing station when cooling, and the unloading and loading will not affect the compression molding process, further improving the processing efficiency.

[0021] 2. The compression molding device for processing plastic products, after the hydraulic column drives the compression molding device to perform compression molding, the compression molding device will automatically cut off the excess raw materials located on the outside of the compression molding bottom mold, thereby eliminating the need for subsequent manual cutting, reducing subsequent processing steps and improving processing efficiency.

[0022] 3. The compression molding device for processing plastic products drives the rotating seat to rotate through the driving motor, and the rotating seat drives the compression molding bottom mold to move. The compression molding bottom mold will not be cooled before and during the compression molding process. After the compression molding work is completed, the rotating seat drives the compression molding bottom mold to rotate counterclockwise, so that the cooling device automatically runs to cool the compression molding bottom mold that has moved through the compression molding station and the molded product inside, thereby improving the processing efficiency.

[0023] 4. The cutting blade of the compression molding device for processing plastic products is elastically mounted, and the distance of inward rotation is buffered by a transmission spring piece, so that the cutting work of compression molding bottom molds of different sizes can be realized. Then, by setting the vortex spring piece between the positioning rod and the mounting sleeve, the blade has a force pressing against the surface of the compression molding bottom mold, thereby realizing the trimming and shearing work of special-shaped compression molding parts with different arc-shaped sides, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the present invention;

[0026] Figure 3 For the present invention Figure 2 A magnified view of the structure at center;

[0027] Figure 4 For the present invention Figure 2 A magnified view of the structure at B in the middle;

[0028] Figure 5 This is a schematic diagram of the internal structure of the processing table of the present invention;

[0029] Figure 6 This is a schematic diagram of the internal structure of the outer sleeve ring of the present invention;

[0030] Figure 7 It is a schematic diagram of the limiting groove structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the installation structure of the limit clamp of the present invention;

[0032] Among them, 1. processing table; 2. supporting foot frame; 3. rotating seat; 4. compression molding bottom mold; 41. upper drainage cavity; 42. upper drainage pipe; 43. lower water injection cavity; 44. lower water injection pipe; 45. drainage ring cavity; 46. drainage connecting hole; 47. water injection connecting hole; 48. lower cooling cavity; 49. cooling circulation channel; 5. driving motor; 6. mounting side frame; 7. hydraulic column; 8. die pressing device; 81. sleeve seat; 82. compression molding top mold; 83. supporting spring; 84. connecting spring; 85. upper ring seat; 86. limiting groove; 87. limiting clamp; 88. positioning bracket; 89. mounting gear; 90. inner shaft rod; 91. transmission spring; 92. outer ring; 93. positioning rod; 94. mounting sleeve; 95. cutting blade; 96. limiting annular tooth head. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] See also Figure 1-Figure 8 The present invention provides a technical solution: a compression molding device for processing plastic products, comprising a processing table 1, a cooling device for cooling and shaping the compression-molded plastic products, and a die device 8 for compression molding and shaping and cutting off excess plastic, a supporting leg frame 2 for support is installed at the bottom of the processing table 1, a rotating seat 3 is installed at the top of the processing table 1, a driving motor 5 for driving the rotating seat 3 to rotate is installed at the bottom of the processing table 1, the output end of the driving motor 5 passes through the processing table 1 and is installed with the bottom of the rotating seat 3, a compression molding bottom mold 4 for compression molding is installed on the top of the rotating seat 3, and a cooling device for cooling and shaping is arranged inside the compression molding bottom mold 4, a mounting side frame 6 is installed on the right side of the top of the processing table 1, a hydraulic column 7 is installed on the top of the mounting side frame 6, the output end of the hydraulic column 7 passes through the mounting side frame 6 and extends to the bottom of the mounting side frame 6, and a die device 8 for compression molding and cutting off excess raw materials after molding is arranged at the bottom output end of the hydraulic column 7.

[0035] In this embodiment, the cooling device includes an upper drainage chamber 41, an upper drainage pipe 42, a lower water injection chamber 43, a lower water injection pipe 44, a drainage ring chamber 45, a drainage connecting hole 46, a water injection connecting hole 47, a lower cooling chamber 48 and a cooling circulation channel 49. The upper drainage chamber 41 is opened inside the processing table 1, the upper drainage pipe 42 is installed on the outer wall of the processing table 1 and is located opposite to the upper drainage chamber 41, the lower water injection chamber 43 is opened inside the processing table 1 and is located below the upper drainage chamber 41, and the lower water injection pipe 44 is installed on the outer wall of the processing table 1. The outer wall of the processing table 1 is located opposite to the lower water injection cavity 43, the drainage ring cavity 45 is opened inside the rotating seat 3 and located outside the compression molding bottom mold 4, the drainage connecting hole 46 is opened inside the rotating seat 3 and located outside the drainage ring cavity 45, the water injection connecting hole 47 is opened at the bottom of the compression molding bottom mold 4, the lower cooling cavity 48 is opened inside the compression molding bottom mold 4 near the bottom, the lower cooling cavity 48 is connected to the inside of the water injection connecting hole 47, and the cooling circulation channel 49 is opened inside the compression molding bottom mold 4.

[0036] Specifically, as attached Figure 2 and attached Figure 3 As shown, cooling water is injected into the lower water injection chamber 43 through the lower water injection pipe 44. When the compression molding bottom mold 4 rotates to the rear position after compression molding, the water injection connecting hole 47 is connected with the lower water injection chamber 43, and the drainage connecting hole 46 is connected with the upper drainage chamber 41. The cooling water in the lower water injection chamber 43 enters into the lower cooling chamber 48 through the water injection connecting hole 47, and then flows into the cooling circulation channel 49 along the bottom end of the cooling circulation channel 49. The cooling water flows along the cooling circulation channel 49 to cool the compression molding bottom mold 4 and the molded product inside the compression molding bottom mold 4. The cooling water flows along the cooling circulation channel 49 for one circle and then enters into the drainage ring cavity 45. The cooled water flows into the upper drainage chamber 41 through the drainage connecting hole 46, and is finally discharged through the upper drainage pipe 42.

[0037] In this embodiment, the die pressing device 8 includes a socket seat 81, a compression molding top mold 82, a support spring 83, a connecting spring 84, an upper ring seat 85, a limit groove 86, a limit clamp 87, a positioning bracket 88, a mounting gear 89, an inner shaft 90, a transmission spring 91, an outer ring 92, a positioning rod 93, a mounting sleeve 94 and a cutting blade 95. The socket seat 81 is socketed with the bottom end of the hydraulic column 7, the compression molding top mold 82 is installed with the bottom of the socket seat 81 through a thread, the top end of the support spring 83 is installed with the bottom end of the hydraulic column 7, the bottom end of the support spring 83 is in contact with the bottom inner wall of the compression molding top mold 82, the connecting spring 84 is fixedly installed with the outer wall of the output end of the hydraulic column 7, the connecting spring 84 is sleeved on the outer side of the output end of the hydraulic column 7, and the upper ring seat 85 is connected with the connecting spring 83 through a bearing ring. The bottom end of the connecting spring 84 is rotatably installed, the limiting groove 86 is opened on the outer wall of the hydraulic column 7, the limiting clamp 87 is installed on the inner wall of the upper ring seat 85, the limiting clamp 87 is clamped in the limiting groove 86, the positioning bracket 88 is installed at the bottom of the upper ring seat 85, the mounting gear 89 is rotatably installed through the bearing and the inner wall of the bottom end of the positioning bracket 88, the inner shaft rod 90 is installed at the axial position of the mounting gear 89, the transmission spring piece 91 is installed on the outer wall of the inner shaft rod 90 near the inner end, the outer ring 92 is rotatably installed through the bearing and the mounting gear 89, the outer end of the transmission spring piece 91 is installed on the inner wall of the outer ring 92, the positioning rod 93 is installed on the outer wall of the outer ring 92, the mounting sleeve 94 is rotatably installed through the bearing and the positioning rod 93, and the cutting blade 95 is installed on the outer wall of the mounting sleeve 94.

[0038] Specifically, as attached Figure 4 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8 As shown, compression molding is performed by the cooperation of the compression molding top mold 82 and the compression molding bottom mold 4 . After compression molding, the excess material is cut off along the outer side of the compression molding bottom mold 4 by the cutting blade 95 .

[0039] In this embodiment, the upper drainage pipe 42 is connected to the interior of the upper drainage chamber 41, the lower water injection pipe 44 is connected to the interior of the lower water injection chamber 43, the lower end of the water injection connecting hole 47 is at the same height as the lower water injection chamber 43, the drainage connecting hole 46 is at the same height as the upper drainage chamber 41, and the upper drainage chamber 41 and the lower water injection chamber 43 are both in the shape of two-thirds of a circle as a whole.

[0040] Specifically, as attached Figure 2 , Attachment Figure 3 and attached Figure 5 As shown, when the compression molding bottom mold 4 is rotated to the front position for unloading and loading and moved to the right side position for compression molding, no water cooling work will be performed. After compression molding, the compression molding bottom mold 4 is rotated to the rear side, and the water injection connecting hole 47 is connected with the interior of the lower water injection cavity 43, and the drainage connecting hole 46 is connected with the interior of the upper drainage cavity 41, so that the cooling water can flow to perform cooling work.

[0041] In this embodiment, the cooling circulation channel 49 is composed of two inner and outer spiral channels. The top ends of the two spiral channels are connected, the lower end of the outer spiral channel is connected to the drainage ring cavity 45, and the lower end of the inner spiral channel is connected to the lower cooling cavity 48.

[0042] Specifically, as attached Figure 3 As shown, cooling water flows through the interior of the cooling circulation channel 49 to absorb heat and cool the side wall of the compression molding bottom mold 4.

[0043] In this embodiment, the elastic supporting force of the supporting spring 83 is greater than the pressure required for compression deformation.

[0044] Specifically, as attached Figure 2 and attached Figure 4 As shown, during compression molding, the hydraulic column 7 moves downward to apply a pressure to the compression molding top mold 82 through the support spring 83. The raw material sheet is first compression molded by the pressure of the compression molding top mold 82 by the support spring 83. After the compression molding top mold 82 stops moving downward, the sleeve seat 81 and the limiting annular tooth head 96 also stop moving downward. At this time, the hydraulic column 7 drives the upper ring seat 85 to continue to move downward through the connecting spring 84.

[0045] In this embodiment, the lower end of the limiting groove 86 is vertically installed, and the upper end of the limiting groove 86 is spirally bent in a clockwise direction.

[0046] Specifically, when the upper ring seat 85 moves downward along the outer side of the hydraulic column 7, it first moves vertically with the cooperation of the limit clamp 87 and the limit groove 86 near the lower end position, and then rotates when the limit clamp 87 moves to the spiral bending position, and the upper ring seat 85 is driven to rotate by the limit clamp 87, and the upper ring seat 85 drives the cutting blade 95 to rotate along the outer side of the compression molding bottom mold 4 to perform cutting work.

[0047] In this embodiment, the transmission spring piece 91 is made of spring steel and is in a spiral shape.

[0048] Specifically, when the inner shaft 90 rotates, the outer ring 92 is driven to rotate through the transmission spring piece 91, and the transmission is performed through the outer ring 92, so that when the outer ring 92 cannot rotate after the cutting blade 95 contacts the outer wall of the compression molding bottom mold 4, the inner shaft 90 can press the transmission spring piece 91 to deform and thus continue to rotate.

[0049] In this embodiment, one end of the cutting blade 95 away from the mounting sleeve 94 is inclined toward the rear side.

[0050] Specifically, the installation sleeve 94 drives the cutting blade 95 to rotate. When the cutting blade 95 contacts the outer wall of the compression molding bottom mold 4, the inclined design makes the cutting edge of the cutting blade 95 deflect toward the rear side along the surface of the compression molding bottom mold 4, so as to facilitate the subsequent cutting blade 95 to revolve along the outer side of the compression molding bottom mold 4 to perform rotary cutting.

[0051] In this embodiment, a vortex spring is installed on the inner wall of the mounting sleeve 94 , the inner end of the vortex spring is installed on the outer wall of the positioning rod 93 , and the outer end of the vortex spring is installed on the inner wall of the mounting sleeve 94 .

[0052] Specifically, the mounting sleeve 94 and the positioning rod 93 are connected by the vortex spring piece, and the positioning rod 93 only provides a pressing force on the mounting sleeve 94 to rotate inward. When the cutting blade 95 contacts the surface of the compression molding bottom mold 4, the positioning rod 93 continues to apply a pressing force to the mounting sleeve 94 and the cutting blade 95, so that the vortex spring piece between the positioning rod 93 and the mounting sleeve 94 will be deformed, so that the mounting sleeve 94 and the cutting blade 95 can rotate along the outer surface of the compression molding bottom mold 4, so that the cutting edge of the cutting blade 95 rotates to the rear side position, preparing for subsequent rotational cutting.

[0053] The working principle and use process of the present invention are as follows: the pipe for supplying cold water is connected to the lower water injection pipe 44, the pipe for discharging hot water is connected to the upper drainage pipe 42, the preheated plate material raw material is placed on the top of the compression molding bottom mold 4, and then the driving motor 5 drives the rotating seat 3 to rotate, and the rotating seat 3 drives the compression molding bottom mold 4 to rotate. After the compression molding bottom mold 4 rotates to the bottom of the hydraulic column 7, the hydraulic column 7 extends downward, and the hydraulic column 7 presses the compression molding top mold 82 through the support spring 83, and presses the compression molding top mold 82 into the interior of the compression molding bottom mold 4, and the plate material above the compression molding bottom mold 4 is compression molded. After compression molding, the hydraulic column 7 continues to extend downward, and the hydraulic column 7 compresses the support spring 83, and the compression molding top mold 82 remains stationary. The hydraulic column 7 drives the upper ring seat 85 to move downward through the connecting spring 84, and the upper ring seat 85 drives the positioning bracket 88 and the installation gear 89 to move downward. When the installation gear 89 moves downward along the outer side of the transmission spring piece 91, it rotates under the restriction of the limiting annular tooth head 96. The rotation of the installation gear 89 drives the inner shaft rod 90 to rotate. The inner shaft rod 90 rotates through the transmission spring piece 91 to the outer ring 92. The outer ring 92 drives the positioning rod 93 to deflect inwardly. The positioning rod 93 drives the installation sleeve 94 and the cutting blade 95 to deflect inwardly, and the excess material on the outer side of the compression molding bottom mold 4 is cut by the cutting blade 95. After the cutting blade 95 contacts the compression molding bottom mold 4, the cutting blade 95 is continuously applied with pressure to the inside. Through the inclined cutting design The cutting blade 95 causes the cutting blade 95 to deflect backward along the outer side of the compression molding bottom mold 4, so that the cutting edge of the cutting blade 95 is closely attached to the surface of the compression molding bottom mold 4 and changes to the backward direction. At this time, under the obstruction of the compression molding bottom mold 4, the mounting sleeve 94 and the cutting blade 95 can no longer move inward, and the upper ring seat 85 can no longer move downward. The hydraulic column 7 continues to extend downward, and the hydraulic column 7 compresses the connecting spring 84, so that the hydraulic column 7 moves downward along the inner side of the upper ring seat 85. When the limiting clamp 87 moves to the upper end position of the limiting groove 86, the limiting clamp 87 drives the upper ring seat 85 to rotate along the outer side of the hydraulic column 7 through the restriction of the limiting groove 86. The upper ring seat 85 drives the mounting gear 89 to rotate through the positioning bracket 88, thereby driving the inner shaft through the mounting gear 89 90, the transmission spring piece 91, the outer ring 92, the positioning rod 93, the installation sleeve 94 and the cutting blade 95 rotate, and the excess raw material on the outside of the compression molding bottom mold 4 is peeled off by the cutting blade 95 rotating along the outside of the compression molding bottom mold 4. After the cutting is completed, the hydraulic column 7 is controlled to shrink, and the hydraulic column 7 drives the die pressing device 8 to move upward to release the compression molding work inside the compression molding bottom mold 4, and then the driving motor 5 drives the compression molding bottom mold 4 after the compression molding to rotate backward through the rotating seat 3, and then the water injection connecting hole 47 below the compression molding bottom mold 4 after the compression molding is connected with the lower water injection cavity 43, and the drainage connecting hole 46 is connected with the inside of the upper drainage cavity 41, and the cooling water inside the lower water injection cavity 43 enters the lower cooling cavity 48 through the water injection connecting hole 47.Then, the cooling water flows into the cooling circulation channel 49 along the bottom end of the cooling circulation channel 49. The cooling water flows along the cooling circulation channel 49 to cool the compression molding bottom mold 4 and the molded product inside the compression molding bottom mold 4. The cooling water flows along the cooling circulation channel 49 for a circle and then enters the drainage ring cavity 45. The cooled water flows into the upper drainage cavity 41 through the drainage connecting hole 46 and is finally discharged through the upper drainage pipe 42. When the cooling water rotates to the front side after cooling, the water injection connecting hole 47 and the lower water injection cavity 43 are no longer connected. The cooling water in the cooling circulation channel 49 stops flowing for cooling, and then the material can be unloaded and replaced with the next sheet material for compression molding.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compression molding device for processing plastic products, comprising a processing table (1), a cooling device for cooling and shaping the compression-molded plastic product, and a die device (8) for compression molding and shaping and cutting off excess plastic, characterized in that: A supporting foot frame (2) is installed at the bottom of the processing table (1), a rotating seat (3) is installed at the top of the processing table (1), a driving motor (5) for driving the rotating seat (3) to rotate is installed at the bottom of the processing table (1), the output end of the driving motor (5) passes through the processing table (1) and is installed with the bottom of the rotating seat (3), a compression molding bottom mold (4) for compression molding is installed at the top of the rotating seat (3), and a cooling device for cooling and shaping is arranged inside the compression molding bottom mold (4), a mounting side frame (6) is installed on the right side of the top of the processing table (1), a hydraulic column (7) is installed at the top of the mounting side frame (6), the output end of the hydraulic column (7) passes through the mounting side frame (6) and extends to the bottom of the mounting side frame (6), and a die pressing device (8) for compression molding and cutting off excess raw materials after molding is arranged at the bottom output end of the hydraulic column (7).

2. A compression molding device for processing plastic products according to claim 1, characterized in that: The cooling device comprises an upper drainage chamber (41), an upper drainage pipe (42), a lower water injection chamber (43), a lower water injection pipe (44), a drainage ring chamber (45), a drainage connecting hole (46), a water injection connecting hole (47), a lower cooling chamber (48) and a cooling circulation channel (49); the upper drainage chamber (41) is opened inside the processing table (1); the upper drainage pipe (42) is installed on the outer wall of the processing table (1) and is located opposite to the upper drainage chamber (41); the lower water injection chamber (43) is opened inside the processing table (1) and is located below the upper drainage chamber (41); the lower water injection pipe (44) is installed on the processing table (1) and is located below the upper drainage chamber (41); The outer wall of the platform (1) is located directly opposite to the lower water injection cavity (43); the drainage ring cavity (45) is opened inside the rotating seat (3) and located outside the compression molding bottom mold (4); the drainage connecting hole (46) is opened inside the rotating seat (3) and located outside the drainage ring cavity (45); the water injection connecting hole (47) is opened at the bottom of the compression molding bottom mold (4); the lower cooling cavity (48) is opened inside the compression molding bottom mold (4) at a position close to the bottom; the lower cooling cavity (48) is connected to the inside of the water injection connecting hole (47); and the cooling circulation channel (49) is opened inside the compression molding bottom mold (4).

3. A compression molding device for processing plastic products according to claim 1, characterized in that: The die pressing device (8) comprises a sleeve seat (81), a compression molding top mold (82), a support spring (83), a connecting spring (84), an upper ring seat (85), a limiting groove (86), a limiting clamp (87), a positioning bracket (88), a mounting gear (89), an inner shaft (90), a transmission spring (91), an outer ring (92), a positioning rod (93), a mounting sleeve (94) and a cutting blade (95). The sleeve seat (81) is connected to the bottom of the hydraulic column (7). The compression molding top mold (82) is installed with the bottom of the sleeve seat (81) through a thread, the top end of the support spring (83) is installed with the bottom end of the hydraulic column (7), the bottom end of the support spring (83) contacts the bottom inner wall of the compression molding top mold (82), the connecting spring (84) is fixedly installed with the outer wall of the output end of the hydraulic column (7), the connecting spring (84) is sleeved on the outer side of the output end of the hydraulic column (7), and the upper ring seat (85) is connected to the connecting spring (84) through a bearing ring. 4), the limit groove (86) is provided on the outer wall of the hydraulic column (7), the limit clamp (87) is installed on the inner wall of the upper ring seat (85), the limit clamp (87) is clamped in the limit groove (86), the positioning bracket (88) is installed on the bottom of the upper ring seat (85), the mounting gear (89) is rotatably installed through the bearing and the inner wall of the positioning bracket (88), and the axial position of the inner shaft (90) and the mounting gear (89) is The transmission spring piece (91) is installed on the inner end and the outer wall of the inner shaft rod (90); the outer ring (92) is rotatably installed through a bearing and a mounting gear (89); the outer end of the transmission spring piece (91) is installed on the inner wall of the outer ring (92); the positioning rod (93) is installed on the outer wall of the outer ring (92); the mounting sleeve (94) is rotatably installed on the positioning rod (93) through a bearing; and the cutting blade (95) is installed on the outer wall of the mounting sleeve (94).

4. A compression molding device for processing plastic products according to claim 2, characterized in that: The upper drainage pipe (42) is connected to the interior of the upper drainage chamber (41), the lower water injection pipe (44) is connected to the interior of the lower water injection chamber (43), the lower end of the water injection connecting hole (47) is at the same height as the lower water injection chamber (43), the drainage connecting hole (46) is at the same height as the upper drainage chamber (41), and the upper drainage chamber (41) and the lower water injection chamber (43) are both in the shape of two-thirds of a circle.

5. A compression molding device for processing plastic products according to claim 2, characterized in that: The cooling circulation channel (49) is composed of two inner and outer spiral channels, the top ends of the two spiral channels are connected, the lower end of the outer spiral channel is connected to the drainage ring cavity (45), and the lower end of the inner spiral channel is connected to the lower cooling cavity (48).

6. A compression molding device for processing plastic products according to claim 3, characterized in that: The elastic supporting force of the supporting spring (83) is greater than the pressure required for compression deformation.

7. A compression molding device for processing plastic products according to claim 3, characterized in that: The lower end of the limiting groove (86) is vertically mounted, and the upper end of the limiting groove (86) is spirally bent in a clockwise direction.

8. A compression molding device for processing plastic products according to claim 3, characterized in that: The transmission spring piece (91) is made of spring steel and is in a spiral shape.

9. A compression molding device for processing plastic products according to claim 3, characterized in that: The end of the cutting blade (95) away from the mounting sleeve (94) is inclined toward the rear side.

10. A compression molding device for processing plastic products according to claim 3, characterized in that: The inner wall of the mounting sleeve (94) is mounted with a vortex spring, the inner end of the vortex spring is mounted with the outer wall of the positioning rod (93), and the outer end of the vortex spring is mounted with the inner wall of the mounting sleeve (94).

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