Hot press molding device for paper-plastic products

Abstract

The utility model discloses a hot-press forming device for paper-plastic products, and relates to the technical field of paper-plastic meal box processing equipment, the hot-press forming device comprises a workbench, the top of the workbench is fixedly provided with a support frame, the lower surface of the inner wall of the support frame is fixedly provided with a hot-press lower die, and the bottom of the hot-press lower die is fixedly connected with a heat dissipation mechanism. The heat in the mold is effectively absorbed by adopting the heat absorbing plate and the cooling liquid in the circular flowing groove, then the first motor is started to drive the heat extraction fan to rotate, smooth circulation of air in the heat extraction groove is promoted, meanwhile, the belt transmission assembly is used for driving the flow guide fan to rotate, circular flowing of the cooling liquid in the circular flowing groove is accelerated, and the heat extraction efficiency is improved. According to the method, it is ensured that heat accumulated in the heat absorption plate and the cooling liquid is rapidly conducted to the heat removal groove through the heat absorption copper plate and the semiconductor heat exchange piece, then efficient heat removal is achieved, the cooling and heat dissipation performance of the hot-pressing mold is remarkably improved, and higher efficiency is brought to processing of the paper-plastic meal box.

Description

Technical Field

[0001] The utility model relates to the technical field of paper-plastic lunch box processing equipment, in particular to a hot pressing forming device for paper-plastic products. Background Art

[0002] The hot pressing forming machine is used in the precision hot pressing manufacturing process of pulp molded products. The equipment uses the power source at the top to drive the upper hot pressing extrusion die to move downward accurately. This power is usually provided by an advanced hydraulic cylinder system. Its raw materials are environmentally friendly waste paper resources. After a series of processes such as fine pulping, precise adsorption molding and efficient drying and shaping, the manufacturing of paper and plastic products is finally completed. Integrating paper and plastic lunch boxes into the above content, for example, paper and plastic lunch boxes are manufactured through this series of process flows, which not only embodies the concept of environmental protection but also meets the needs of modern life.

[0003] The existing technology has the following problems:

[0004] After the existing hot pressing forming machine completes the hot pressing of the mold, the mold needs to undergo a cooling process. The natural cooling method is currently widely used. This method is inefficient and significantly restricts the production capacity. In addition, when the hot pressing forming machine completes the processing task of paper-plastic lunch boxes, there are often uncleaned materials left on the lower mold. Most existing hot pressing forming machines lack automatic cleaning devices for residues. If these residues are not handled in time, it will have an adverse effect on the quality of subsequent molded products. Utility Model Content

[0005] The utility model provides a hot pressing forming device for paper-plastic products, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A hot pressing forming device for paper and plastic products comprises a workbench, a support frame is fixedly mounted on the top of the workbench, a hot pressing lower mold is fixedly mounted on the lower surface of the inner wall of the support frame, a hydraulic push rod is fixedly mounted on the top of the workbench, the output end of the hydraulic push rod passes through the inner side of the support frame and is fixedly connected to the hot pressing upper mold, a heat dissipation mechanism is fixedly connected to the bottom of the hot pressing lower mold, and a cleaning mechanism is fixedly connected to the top rear side of the workbench.

[0008] The heat dissipation mechanism includes a heat insulation plate, a heat absorbing plate is fixedly connected to the middle part of the top of the heat insulation plate, the heat absorbing plate is fixedly connected to the bottom of the hot pressing mold, a circulation flow groove is provided inside the heat absorbing plate, and heat discharge grooves running through the left and right sides are provided on the front and back sides of the interior of the heat insulation plate, and dustproof nets are fixedly connected to the left and right sides of the inner surface of the heat discharge groove, and a number of heat absorbing copper plates are fixedly connected to the front and back sides of the inner surface of the circulation flow groove, and one end of the heat absorbing copper plate close to the heat insulation plate passes through the interior of the heat discharge groove, and semiconductor heat exchange fins are fixedly connected to the front and back sides of the inner wall of the circulation flow groove, and one end of the semiconductor heat exchange fin close to the heat insulation plate passes through the middle of the heat discharge groove.

[0009] A further improvement of the technical solution of the present invention is that a connecting plate is fixedly connected to the left side of the interior of the heat exhaust groove, a first motor is fixedly connected to the middle of the connecting plate, and a heat exhaust fan is fixedly connected to the output shaft of the first motor.

[0010] A further improvement of the technical solution of the present invention is that: the front and rear sides of the right end of the inner surface of the circulating flow groove are rotatably connected with guide fans, and the heat exhaust fan and the left end of the guide fan are fixedly connected with a belt transmission assembly.

[0011] A further improvement of the technical solution of the present utility model is that: the cleaning mechanism includes a connecting frame, the connecting frame is fixedly connected to the top rear side of the workbench, a suction groove is opened on the inner top of the connecting frame and runs through it front and back, a sliding suction pipe is inserted into the front and rear sliding grooves on the inner surface of the suction groove, a filter is fixedly connected to the middle part of the inner surface of the suction groove, and an exhaust fan is fixedly connected to the rear side of the inner surface of the suction groove.

[0012] A further improvement of the technical solution of the present invention is that a discharge trough is provided in the middle of the lower surface of the inner wall of the suction trough, a collection box is provided at the bottom of the discharge trough, and the collection box is slidably inserted at the lower rear side of the connecting frame.

[0013] A further improvement of the technical solution of the present utility model is that a sliding groove is opened in the middle of the upper surface of the inner wall of the suction groove, a second motor is fixedly connected to the left side of the sliding groove, the output shaft of the second motor is fixedly connected to the first screw, the outer surface of the first screw is threadedly connected to a sliding scraper, and the rear side of the sliding scraper is slidably connected to the front side of the filter screen.

[0014] A further improvement of the technical solution of the present utility model is that two guide columns are slidably inserted on both sides of the rear end of the sliding suction tube, and the rear ends of the two guide columns on the same side are fixedly connected to a limit plate, and the two limit plates are respectively fixedly connected to the left and right sides of the inner wall of the suction groove.

[0015] A further improvement of the technical solution of the present utility model is that a third motor is fixedly connected to the middle part of the rear side of the limiting plate, the output shaft of the third motor is fixedly connected to a second screw, the front end of the second screw passes through the front side of the limiting plate and the outer surface is threadedly connected to the sliding suction pipe.

[0016] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0017] 1. The utility model provides a hot pressing forming device for paper and plastic products. Through the mutual cooperation among a heat insulation plate, a heat absorbing plate, a circulating flow groove, a heat exhaust groove, a dustproof net, a heat absorbing copper plate, a semiconductor heat exchange plate, a connecting plate, a first motor, a heat exhaust fan, a guide fan, and a belt transmission assembly, the heat in the mold is effectively absorbed by adopting the heat absorbing plate and the coolant in the circulating flow groove. Subsequently, the first motor is started to drive the heat exhaust fan to rotate, thereby promoting the smooth circulation of air in the heat exhaust groove. At the same time, the belt transmission assembly is used to drive the rotation of the guide fan to accelerate the circulation of the coolant in the circulating flow groove, ensuring that the heat accumulated in the heat absorbing plate and the coolant is quickly transferred to the heat exhaust groove through the heat absorbing copper plate and the semiconductor heat exchange plate, thereby realizing efficient heat exhaust. This method significantly improves the cooling and heat dissipation performance of the hot pressing mold, and brings higher efficiency to the processing of paper and plastic lunch boxes.

[0018] 2. The present invention provides a hot press forming device for paper and plastic products. Through the cooperation among the connecting frame, the sliding suction pipe, the filter screen, the exhaust fan, the discharge trough, the collection box, the second motor, the first screw, and the sliding scraper, after completing the hot press forming process of the paper and plastic lunch box, the driving force of the third motor is used to drive the second screw to rotate, thereby pushing the sliding suction pipe to accurately slide to the top of the hot press mold. Subsequently, the exhaust fan is started, and the debris and impurities attached to the surface of the hot press mold are efficiently removed by the synergistic effect of the suction trough and the sliding suction pipe. During this process, the filter can effectively intercept and filter out debris, ensuring the unobstructed flow of the exhaust system. Then, the operation of the second motor drives the rotation of the first screw, which can drive the sliding scraper to perform the scraping operation, completely scraping off the debris intercepted by the filter and guiding it to fall smoothly into the collection box through the discharge chute, solving the problem of debris remaining on the top of the hot-pressing mold, effectively avoiding its potential impact on the subsequent processing quality of paper-plastic lunch boxes, and making the use experience of the entire paper-plastic product hot-pressing forming device more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the heat dissipation mechanism of the present invention;

[0021] Figure 3 This is an enlarged structural diagram of the heat dissipation mechanism of the utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the cleaning mechanism of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the sliding suction tube of the utility model.

[0024] In the figure: 1. workbench; 2. support frame; 3. hot pressing lower mold; 4. hydraulic push rod; 5. hot pressing upper mold; 6. heat dissipation mechanism; 61. heat insulation plate; 62. heat absorbing plate; 63. circulation flow trough; 64. heat discharge trough; 65. dustproof net; 66. heat absorbing copper plate; 67. semiconductor heat exchange plate; 68. connecting plate; 69. first motor; 610. heat discharge fan; 611. guide fan; 612. belt drive assembly; 7. cleaning mechanism; 71. connecting frame; 72. sliding suction pipe; 721. guide column; 722. limit plate; 723. third motor; 724. second screw; 73. filter screen; 74. exhaust fan; 75. discharge trough; 76. collection box; 77. second motor; 78. first screw; 79. sliding scraper. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods:

[0026] like Figure 1-3As shown, the utility model provides a hot pressing forming device for paper and plastic products, including a workbench 1, a support frame 2 is fixedly installed on the top of the workbench 1, a hot pressing lower mold 3 is fixedly installed on the lower surface of the inner wall of the support frame 2, a hydraulic push rod 4 is fixedly installed on the top of the workbench 1, the output end of the hydraulic push rod 4 passes through the inner side of the support frame 2 and is fixedly connected to the hot pressing upper mold 5, the bottom of the hot pressing lower mold 3 is fixedly connected with a heat dissipation mechanism 6, and the top of the rear side of the workbench 1 is fixedly connected with a cleaning mechanism 7. The heat dissipation mechanism 6 includes a heat insulation plate 61, a heat absorbing plate 62 is fixedly connected to the middle part of the top of the heat insulation plate 61, and the heat absorbing plate 62 is fixedly connected to the bottom of the hot pressing lower mold 3. A circulating flow groove 63 is provided inside the heat absorbing plate 62, and a heat exhaust groove 64 is provided on the front and back sides of the interior of the heat insulation plate 61. The inner surface of the heat exhaust groove 64 is fixedly connected with a dustproof net 65 on both sides. The dustproof net 65 can be used to remove dust in the air The dust is filtered, and several heat-absorbing copper plates 66 are fixedly connected on the front and rear sides of the inner surface of the circulating flow groove 63. The end of the heat-absorbing copper plate 66 close to the heat insulation plate 61 passes through the interior of the heat exhaust groove 64, and the front and rear sides of the inner wall of the circulating flow groove 63 are fixedly connected with semiconductor heat exchange plates 67. The end of the semiconductor heat exchange plate 67 close to the heat insulation plate 61 passes through the middle of the heat exhaust groove 64. The left side of the interior of the heat exhaust groove 64 is fixedly connected with a connecting plate 68, and the middle part of the connecting plate 68 is fixedly connected to a first motor 69. The output shaft of the first motor 69 is fixedly connected to a heat exhaust fan 610. The front and rear sides of the right end of the inner surface of the circulating flow groove 63 are rotatably connected to a guide fan 611. The left ends of the heat exhaust fan 610 and the guide fan 611 are fixedly connected to a belt transmission assembly 612. The belt transmission assembly 612 consists of two pulleys and a conveyor belt. The two pulleys are fixedly connected to the heat exhaust fan 610 and the guide fan 611 respectively.

[0027] The heat in the hot pressing mold 3 can be absorbed by the coolant in the heat absorbing plate 62 and the circulating flow groove 63, and by starting the first motor 69, the heat exhaust fan 610 can be driven to rotate, so that air circulates in the heat exhaust groove 64. At the same time, the guide fan 611 can be driven to rotate by the belt transmission component 612, so that the coolant flows in the circulating flow groove 63, so that the heat in the heat absorbing plate 62 and the coolant can be transferred to the heat exhaust groove 64 for discharge through the heat absorbing copper plate 66 and the semiconductor heat exchange plate 67, so that the hot pressing mold 3 can be cooled and dissipated more efficiently, thereby improving the processing efficiency of the paper-plastic lunch box.

[0028] like Figure 4-5As shown, the present invention provides a hot pressing forming device for paper and plastic products. The cleaning mechanism 7 includes a connecting frame 71, which is fixedly connected to the top rear side of the workbench 1. A suction groove is provided on the top of the connecting frame 71 and passes through it front and back. A sliding suction pipe 72 is inserted into the front and rear sliding grooves of the inner surface of the suction groove. A filter screen 73 is fixedly connected to the middle of the inner surface of the suction groove. An exhaust fan 74 is fixedly connected to the rear side of the inner surface of the suction groove. A discharge groove 75 is provided in the middle of the lower surface of the inner wall of the suction groove. A collection box 76 is provided at the bottom of the discharge groove 75. The collection box 76 is slidably inserted into the lower rear side of the connecting frame 71. A sliding groove is provided in the middle of the upper surface of the inner wall of the suction groove. A second motor 77 is fixedly connected to the left side of the sliding groove. The output shaft of the second motor 77 is fixedly connected to the first screw 78, the outer surface of the first screw 78 is threadedly connected to the sliding scraper 79, the rear side of the sliding scraper 79 is slidably connected to the front side of the filter screen 73, and two guide posts 721 are slidably inserted on the left and right sides of the rear end of the sliding suction pipe 72. The rear ends of the two guide posts 721 on the same side are fixedly connected to a limit plate 722. The two limit plates 722 are respectively fixedly connected to the left and right sides of the inner wall of the suction groove. The middle part of the rear side of the limit plate 722 is fixedly connected to the third motor 723. The output shaft of the third motor 723 is fixedly connected to the second screw 724. The front end of the second screw 724 passes through the front side of the limit plate 722 and the outer surface is threadedly connected to the sliding suction pipe 72;

[0029] After completing the hot pressing process of the paper plastic lunch box, by starting the third motor 723, the second screw 724 can be driven to rotate, so that the sliding suction pipe 72 can slide along the guide column 721 to the top of the hot pressing lower mold 3, and by starting the exhaust fan 74, the debris and impurities remaining on the hot pressing lower mold 3 can be sucked through the suction groove and the sliding suction pipe 72, and the debris can be filtered through the filter screen 73. Then, by starting the second motor 77, the first screw 78 can be driven to rotate, so that the sliding scraper 79 can scrape the debris on the filter screen 73, so that the debris falls from the discharge trough 75 into the collection box 76, thereby avoiding the debris remaining on the top of the hot pressing lower mold 3 affecting the processing effect of the paper plastic lunch box, making the hot pressing forming device of paper plastic products more convenient to use.

[0030] The working principle of the hot pressing forming device for paper plastic products will be described in detail below.

[0031] like Figure 1-5As shown, in the hot pressing process of the paper plastic lunch box, the raw materials are first placed accurately in the hot pressing lower mold 3, and then the hydraulic push rod 4 exerts its driving force to prompt the hot pressing upper mold 5 to slide downward accurately and stably, so as to realize the precise hot pressing process of the paper plastic lunch box. After the processing is completed, the hydraulic push rod 4 is started again to pull the hot pressing upper mold 5 back to the initial position. Then, the start of the first motor 69 drives the rotation of the heat exhaust fan 610. This action ensures the smooth circulation of air in the heat exhaust groove 64, effectively promoting the dissipation of heat. At the same time, the operation of the belt drive assembly 612 drives the guide fan 611, prompting the coolant to circulate continuously in the circulating flow groove 63, further enhancing the heat dissipation effect. In this process, the heat absorbing copper plate 66 and the semiconductor heat exchange plate 67 work together to efficiently transfer the heat in the heat absorbing plate 62 and the coolant to the heat exhaust groove 64. The second motor 723 is then started to rotate, and the second screw 724 is driven to rotate, so that the sliding suction pipe 72 slides accurately to the top of the hot-pressed mold 3. At this time, the exhaust fan 74 is started, and its strong suction force completely sucks out the debris and impurities remaining on the hot-pressed mold 3, and the filter screen 73 can effectively intercept these debris. Finally, the start-up of the second motor 77 drives the rotation of the first screw 78, driving the sliding scraper 79 to thoroughly scrape the debris on the filter screen 73, ensuring that the debris can smoothly fall into the collection box 76, avoiding the adverse effects of debris remaining on the top of the hot-pressed mold 3 on the subsequent paper-plastic lunch box processing effect, making the entire paper-plastic product hot-pressing forming device more convenient and efficient in use.

[0032] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A hot pressing forming device for paper plastic products, comprising a workbench (1), a support frame (2) fixedly mounted on the top of the workbench (1), a hot pressing lower mold (3) fixedly mounted on the lower surface of the inner wall of the support frame (2), a hydraulic push rod (4) fixedly mounted on the top of the workbench (1), the output end of the hydraulic push rod (4) passing through the inner side of the support frame (2) and fixedly connected to the hot pressing upper mold (5), characterized in that: The bottom of the hot pressing mold (3) is fixedly connected to a heat dissipation mechanism (6), and the top of the rear side of the workbench (1) is fixedly connected to a cleaning mechanism (7); The heat dissipation mechanism (6) includes a heat insulation plate (61), a heat absorbing plate (62) is fixedly connected to the middle of the top of the heat insulation plate (61), the heat absorbing plate (62) is fixedly connected to the bottom of the hot pressing mold (3), a circulation flow groove (63) is provided inside the heat absorbing plate (62), and heat exhaust grooves (64) are provided on the front and back sides of the interior of the heat insulation plate (61) and pass through the left and right sides, and dustproof nets (65) are fixedly connected to the left and right sides of the inner surface of the heat exhaust groove (64), and a plurality of heat absorbing copper plates (66) are fixedly connected to the front and back sides of the inner surface of the circulation flow groove (63), and the end of the heat absorbing copper plate (66) close to the heat insulation plate (61) passes through the inside of the heat exhaust groove (64), and the front and back sides of the inner wall of the circulation flow groove (63) are fixedly connected to semiconductor heat exchange fins (67), and the end of the semiconductor heat exchange fin (67) close to the heat insulation plate (61) passes through the middle of the heat exhaust groove (64).

2. The hot pressing forming device for paper plastic products according to claim 1, characterized in that: A connecting plate (68) is fixedly connected to the left side of the interior of the heat exhaust groove (64), a first motor (69) is fixedly connected to the middle of the connecting plate (68), and a heat exhaust fan (610) is fixedly connected to the output shaft of the first motor (69).

3. The hot pressing forming device for paper plastic products according to claim 2, characterized in that: The right end of the inner surface of the circulating flow groove (63) is rotatably connected to the front and rear sides with a guide fan (611), and the left end of the heat exhaust fan (610) and the guide fan (611) is fixedly connected to a belt transmission assembly (612).

4. The hot pressing forming device for paper plastic products according to claim 1, characterized in that: The cleaning mechanism (7) comprises a connecting frame (71), the connecting frame (71) being fixedly connected to the top rear side of the workbench (1), a suction groove being provided at the top end of the connecting frame (71) and extending through the front and rear sides, a sliding suction pipe (72) being inserted into the front and rear sliding grooves on the inner surface of the suction groove, a filter screen (73) being fixedly connected to the middle of the inner surface of the suction groove, and an exhaust fan (74) being fixedly connected to the rear side of the inner surface of the suction groove.

5. The hot pressing forming device for paper plastic products according to claim 4, characterized in that: A discharge trough (75) is provided in the middle of the lower surface of the inner wall of the suction trough, and a collection box (76) is provided at the bottom of the discharge trough (75). The collection box (76) is slidably inserted at the lower rear side of the connecting frame (71).

6. The hot pressing forming device for paper plastic products according to claim 5, characterized in that: A sliding groove is provided in the middle of the upper surface of the inner wall of the suction groove, and a second motor (77) is fixedly connected to the left side of the sliding groove. The output shaft of the second motor (77) is fixedly connected to a first screw (78), and the outer surface of the first screw (78) is threadedly connected to a sliding scraper (79), and the rear side of the sliding scraper (79) is slidably connected to the front side of the filter screen (73).

7. The hot pressing forming device for paper plastic products according to claim 4, characterized in that: Two guide posts (721) are slidably connected to the left and right sides of the rear end of the sliding suction pipe (72); the rear ends of the two guide posts (721) on the same side are fixedly connected to a limiting plate (722); the two limiting plates (722) are respectively fixedly connected to the left and right sides of the inner wall of the suction groove.

8. The hot pressing forming device for paper plastic products according to claim 7, characterized in that: A third motor (723) is fixedly connected to the middle portion of the rear side of the limiting plate (722), and an output shaft of the third motor (723) is fixedly connected to a second screw rod (724). The front end of the second screw rod (724) passes through the front side of the limiting plate (722) and the outer surface is threadedly connected to the sliding suction tube (72).

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