Thermoplastic flat plate forming mold and pressing system
By employing a dual-mold structure and serpentine heating pipes in the laminate thermoforming mold, combined with multi-point temperature sensors and support components, the problem of uneven mold heating was solved, achieving uniformity and automated operation in the thermoforming process, thus improving product quality and safety.
Patent Information
- Application Number
- CN202423259569.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In the existing thermoforming process of laminated boards, the press only heats through a single straight pipe, resulting in uneven heating of the mold steel plate. This leads to the production of products with stripes or areas of varying depths, affecting the user experience.
The device employs a dual-mold structure, with a first heating pipe and a second heating pipe respectively installed in the first mold and the second mold, and equipped with a first heat spreader and a second heat spreader. Uniform heat distribution is achieved through serpentine arrangement and multi-point temperature sensors, and automated hot pressing molding is realized by combining support components and a controller.
It achieves uniform heat distribution within the mold, eliminates streaks or areas of varying depths, improves product molding quality and consistency, and reduces workload and improves safety through automated operation.
Smart Images
Figure CN223630976U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to thermoplastic flat plate compression technology field, concretely relates to a thermoplastic flat plate forming die and compression system. BACKGROUND
[0002] Thermal forming is to heat thermoplastic sheet to soften, under gas pressure, liquid pressure or mechanical pressure, using appropriate mold or fixture to make it into a product forming method.
[0003] The existing laminated board in the thermal forming process, the press is only through single straight pipe (heating unit) heating, heating area is small, the die steel plate is unevenly heated, in the production process, the product produced due to uneven heating exists the phenomenon of stripes or area of different depths, affect the user's experience. UTILITY MODEL CONTENT
[0004] Therefore, the utility model provides a thermoplastic flat plate forming die and compression system to solve the problem that the laminated board in the thermal forming process, the press is only through single straight pipe (heating unit) heating, heating area is small, the die steel plate is unevenly heated, in the production process, the product produced due to uneven heating exists the phenomenon of stripes or area of different depths, affect the user's experience.
[0005] In a first aspect, the utility model provides a thermoplastic flat plate forming die, comprising:
[0006] The die body assembly includes a first die body and a second die body arranged correspondingly, the first die body is provided with a first heating pipe and a first heat plate, and / or the second die body is provided with a second heating pipe and a second heat plate;
[0007] The first heat plate uniformly distributes the heat generated by the first heating pipe to the first die body, the second heat plate uniformly distributes the heat generated by the second heating pipe to the second die body, the first die body and the second die body are suitable for placing the laminated film, and the first die body and the second die body are driven to move relatively to heat and press the laminated film into a laminated board.
[0008] By setting the first die body and the second die body, the first die body uniformly distributes the heat generated by the first heating pipe on the first die body, and the second die body uniformly distributes the heat generated by the second heating pipe on the second die body, so that the first die body and the second die body reach the preset hot-pressing temperature, and after reaching the corresponding temperature, the first die body and the second die body are driven to move relatively to hot-press the laminated film into a laminated plate, thereby improving the uniformity of heat distribution of the first die body and the second die body, and the film is bonded after being heated and pressed to be formed into a laminated plate, thereby solving the problem that the laminated plate produces stripes or regions with different depths due to uneven heating during hot-pressing.
[0009] In an optional embodiment, the first die body is provided with a first temperature sensor, and the second die body is provided with a second temperature sensor.
[0010] In an optional embodiment, the first heating pipe and the second heating pipe are arranged in a serpentine shape, respectively.
[0011] In an optional embodiment, the system further comprises a support assembly, the support assembly is provided with a first support plate and a second support plate, the first support plate is located above the first die body, the first support plate and the second support plate are arranged at intervals, and the first support plate and the second support plate are adapted to place the laminated plate therebetween.
[0012] In an optional embodiment, the system further comprises a support member arranged between the first support plate and the second support plate.
[0013] In an optional embodiment, a release film is arranged between the first support plate and the laminated plate, and a release film is arranged between the second support plate and the laminated plate.
[0014] In an optional embodiment, the system further comprises a controller, and the controller is connected to the first heating pipe, the second heating pipe, the first temperature sensor and the second temperature sensor in circuit, respectively.
[0015] In a second aspect, the utility model also provides a pressing system, comprising the thermoplastic flat plate forming die.
[0016] In an optional embodiment, the system further comprises a press machine, and the press machine comprises a first station and a second station, and the first station or the second station is adapted to install the die body assembly.
[0017] In an optional embodiment, the system further comprises a conveying assembly, and the conveying assembly is adapted to convey the die body assembly from the first station to the second station, or the conveying assembly is adapted to convey the die body assembly from the second station to the first station. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 A schematic view of a thermoplastic flat plate forming die according to an embodiment of the present application;
[0020] Figure 2 A schematic view of a temperature sensor, a heat plate and a heating pipe in a die body assembly according to an embodiment of the present application;
[0021] Figure 3 A schematic view of a heating pipe in a die body assembly according to an embodiment of the present application;
[0022] Figure 4 A schematic view of a die body assembly from a first station to a second station according to an embodiment of the present application;
[0023] Figure 5 A schematic view of a first station and a second station according to an embodiment of the present application.
[0024] Marked with the following drawings: 1, die body assembly; 101, first die body; 1011, first heating pipe; 1012, first heat plate; 1013, first temperature sensor; 102, second die body; 1021, second heating pipe; 1022, second heat plate; 1023, second temperature sensor; 2, support assembly; 201, first support plate; 202, second support plate; 3, laminated plate; 4, support; 5, first station; 6, second station; 7, conveying assembly. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0026] The embodiments of the present application will be described below in combination with Figures 1 to 5
[0027] According to the embodiment of the utility model, on the one hand, a thermoplastic flat plate forming die is provided, which comprises: a die body assembly 1, the die body assembly 1 comprises correspondingly arranged first die body 101 and second die body 102, first heating pipeline 1011 and first uniform heating plate 1012 are arranged in first die body 101, and second heating pipeline 1021 and second uniform heating plate 1022 are arranged in second die body 102;
[0028] The first uniform heating plate 1012 uniformly distributes the heat generated by the first heating pipeline 1011 in the first die body 101, the second uniform heating plate 1022 uniformly distributes the heat generated by the second heating pipeline 1021 in the second die body 102, and the first die body 101 and the second die body 102 are suitable for placing the laminated film, and the first die body 101 and the second die body 102 are driven to move relatively to heat-press form the laminated film into the laminated plate 3.
[0029] By arranging the first die body 101 and the second die body 102, the first uniform heating plate 1012 uniformly distributes the heat generated by the first heating pipeline 1011 in the first die body 101, and the second uniform heating plate 1022 uniformly distributes the heat generated by the second heating pipeline 1021 in the second die body 102, so that the first die body 101 and the second die body 102 reach the preset heat-press temperature, and after reaching the corresponding temperature, the first die body 101 and the second die body 102 are driven to move relatively to heat-press form the laminated film into the laminated plate 3, thereby improving the uniformity of heat distribution of the first die body 101 and the second die body 102, making the film material molecular chains move after being heated and pressed, interweaving and combining with each other, and then being bonded and formed into the laminated plate 3, solving the problem of stripes or areas of different depths caused by uneven heating during the heat-press forming of the laminated plate 3. It should be noted that the materials of the first uniform heating plate 1012 and the second uniform heating plate 1022 are both graphite materials, and the laminated plate 3 can be heat-pressed from films of the same material or films of different materials. The material of the film is a thermoplastic material, which includes polyethylene (PE), polypropylene (PP), polycarbonate (PC), polyvinyl chloride (PVC), polystyrene (PS), polyethylene terephthalate (PET), and the like. The thermosetting material includes phenolic resin (PF), polyurethane (PU), epoxy resin (EP), and carbon fiber prepreg made of the same, glass fiber prepreg, and the like.
[0030] In one embodiment, as Figure 2As shown, the first temperature sensor 1013 is arranged in the first mold body 101, and the second temperature sensor 1023 is arranged in the second mold body 102. The first temperature sensor 1013 senses the temperature in the first mold body 101, and the second temperature sensor 1023 senses the temperature in the second mold body 102. It should be noted that the number of first temperature sensors 1013 in the first mold body 101 is three, and the number of second temperature sensors 1023 in the second mold body 102 is three. The spacing between adjacent first temperature sensors 1013 is the same, and the spacing between adjacent second temperature sensors 1023 is the same, so as to measure the temperature at different positions. Through the multi-point arrangement, the real-time monitoring of the multi-point temperature in the mold body is realized, and the change of the temperature in each region of the mold body is convenient to understand and master.
[0031] In one embodiment, as shown in Figure 3 , the first heating pipe 1011 and the second heating pipe 1021 are arranged in a serpentine shape. The serpentine arrangement makes the heating of the first heating pipe 1011 and the second heating pipe 1021 in the mold body more uniform. Figure 2 As shown, the first heating pipe 1011 and the first temperature sensor are arranged on the two sides of the first heat plate 1012, and the first temperature sensor is arranged towards the laminated plate 3, and the first heating pipe 1011 is arranged away from the laminated plate 3. The second heating pipe 1021 and the second temperature sensor are arranged on the two sides of the second heat plate 1022, and the second temperature sensor is arranged towards the laminated plate 3, and the second heating pipe 1021 is arranged away from the laminated plate 3.
[0032] In one embodiment, as shown in Figure 1 , Figure 4 , the support 4 is arranged between the first support plate 201 and the second support plate 202. The support 4 is arranged to avoid the distance between the first support plate 201 and the second support plate 202 being less than the height of the support 4, and to avoid the thickness (or height) of the laminated plate 3 being less than the preset height. Specifically, the support 4 is a frame structure, that is, the frame structure places the laminated film in the accommodating space of the frame body, and also plays a role of limiting the film.
[0033] In one embodiment, the first support plate 201 and the laminated plate 3 are provided with a release film, and the second support plate 202 and the laminated plate 3 are provided with a release film. The design of the release film facilitates the separation between the first support plate 201 or the second support plate 202 and the laminated plate 3, so that when the laminated plate 3 is taken down, the laminated plate 3 and the support assembly 2 can be quickly separated.
[0034] In one embodiment, a controller is further included, which is connected with the first heating pipe 1011, the second heating pipe 1021, the first temperature sensor and the second temperature sensor respectively, and the controller is used to sense and control the temperature in the first mold body 101 and the second mold body 102 in real time.
[0035] According to the embodiments of the present application, on the other hand, a pressing system is further provided, which comprises the thermoplastic flat plate forming mold.
[0036] In one embodiment, as shown in Figure 4 , Figure 5 A press machine is further included, which comprises a first station 5 and a second station 6, and the first station 5 or the second station 6 is adapted to mount the mold body assembly 1. The relative movement between the first mold body 101 and the second mold body 102 is driven by the force applied by the press machine, so as to mount the mold body assembly 1 on the first station 5 or the second station 6. It should be noted that the first station 5 is a hot pressing station, i.e., the first mold body 101 and the second mold body 102 are heated and then hot pressed on the first station 5, and the second station 6 is a cold pressing station, i.e., the first mold body 101 and the second mold body 102 are cold pressed on the second station 6. It should be noted that the first mold body 101 and the second mold body 102 are both provided with cooling pipes, and the first mold body 101 and the second mold body 102 are quickly cooled by connecting with cooling liquid on the second station 6, so that the laminated board 3 is a thermoplastic flat plate after cold pressing.
[0037] In the present embodiment, the press machine comprises a corresponding frame and a pressing block, the frame is provided with a first mounting position and a second mounting position, and the pressing block is provided with a first pressing position and a second pressing position. The first pressing position is correspondingly arranged with the first mounting position, the first mounting position is adapted to mount the first mold body 101, and the first pressing position is adapted to mount the second mold body 102. The second pressing position is correspondingly arranged with the second mounting position, the second mounting position is adapted to mount the second mold body 102, and the second pressing position is adapted to mount the second mold body 102.
[0038] In one embodiment, as shown in Figure 4 , Figure 5As shown, the system further comprises a conveying assembly 7 adapted to transport the mold assembly 1 from the first station 5 to the second station 6, or to transport the mold assembly 1 from the second station 6 to the first station 5. Specifically, a "U"-shaped guide rail is arranged between the first pressure station and the second pressure station of the briquetting machine, and the second mold 102 is driven to move by a "mechanical gear + chain" form, and the gear is driven to rotate by a servo motor; a "U"-shaped guide rail is arranged between the first installation station and the second installation station of the machine base, and the first mold 101 is driven to move by a "mechanical gear + chain" form, and the gear is driven to rotate by a servo motor, so as to finally realize the same direction and speed movement of the first mold 101 and the second mold 102. It should be noted that the controller is connected with the servo motor circuit to realize automatic transportation. It should be noted that the mold assembly 1 is not subjected to pressure when moving from the first station 5 to the second station 6 or moving from the second station 6 to the first station 5.
[0039] A method for using a pressing system, comprising the following steps:
[0040] (1) The first mold 101 and the second mold 102 are installed on the first station 5, the first mold 101 is heated by the first heating pipe 1011, and the second mold 102 is heated by the second heating pipe 1021, until the temperature reaches a preset temperature (130-150°C), and the first temperature sensor 1013 and the second temperature sensor 1023 respectively sense and transmit the temperature in real time;
[0041] (2) The support 4 is placed on the first support plate 201, the release film is laid on the first support plate 201, the release film is coated with a release agent, and the self-reinforced thermoplastic material cloth layer is laid on the release film, and another release film coated with a release agent is laid on the self-reinforced thermoplastic material cloth layer;
[0042] (3) After the laying is completed, the first support plate 201 is placed on the first mold 101, the second support plate 202 is placed above the release film, the press is started to make the first mold 101 and the second mold 102 move relative to each other (the second mold 102 moves towards the first mold 101), and after hot pressing for a preset time, the hot pressing is completed to obtain the laminated board 3;
[0043] (4) The first mold 101, the second mold 102 and the hot-pressed laminated board 3 are transported from the first station 5 to the second station 6 by the conveying assembly 7, the first heating pipe 1011 and the second heating pipe 1021 are not heated, and after cold pressing for a preset time, the cold pressing is completed;
[0044] (5) the cold-pressed and shaped laminated plate 3 is taken out together with the first support plate 201 and the second support plate 202, the laminated plate 3 is separated from the release film and the support assembly 2 through demolding, and the mold body assembly 1 is conveyed from the second station 6 to the first station 5 through the conveying assembly 7.
[0045] The pressing system has the following advantages: (1) the serpentine distribution of the heating pipe increases the heating area and improves the heating efficiency, which is beneficial to the uniformity of the temperature distribution in the mold body; (2) the first uniform heating plate 1012 and the second uniform heating plate 1022 are added, so that the temperature distribution of the first mold body 101 and the second mold body 102 is uniform, and the problem of uneven stripes or areas caused by uneven heating of the laminated plate 3 during hot pressing is solved; (3) the distribution of the plurality of temperature sensors makes the measured temperature more close to the actual temperature of the mold body, and facilitates real-time monitoring and grasping of the temperature change of each area by the on-site personnel; (4) the conveying assembly 7 is arranged, so that manual operation is not required in the whole process, automatic operation is realized, the working intensity is reduced, and the safety is improved; (5) the support 4 is arranged, so that the thickness of the laminated plate 3 during hot pressing and cold pressing is ensured, and the consistency of the thickness after forming is realized.
[0046] As an alternative embodiment, the first heating pipe 1011 and the first uniform heating plate 1012 can be separately arranged in the first mold body 101, or the second heating pipe 1021 and the second uniform heating plate 1022 can be separately arranged in the second mold body 102.
[0047] As an alternative embodiment, the number of the first temperature sensor 1013 and the second temperature sensor 1023 can also be 2, 4 or even more.
[0048] As an alternative embodiment, the support 4 can also be strip-shaped, the number of the strip-shaped support 4 is 2, 3 or even more, and the strip-shaped supports 4 are arranged on both sides of the laminated plate 3 respectively; or the support 4 can also be block-shaped, the number of the block-shaped support 4 is 2, 3 or even more, and the block-shaped supports 4 are arranged around the laminated plate 3 respectively.
[0049] As an alternative embodiment, the "U" shape can also be linear, the conveying assembly 7 comprises a lead screw and a sliding block connected with the lead screw, the sliding block is driven to move by the lead screw driven by a servo motor, the first mold body 101 and the second mold body 102 are respectively fixedly provided with the sliding blocks, and the same direction and same speed movement of the first mold body 101 and the second mold body 102 is driven by the "lead screw + sliding block" form.
[0050] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the appended claims.
Claims
1. A thermoplastic flat plate forming mold characterized by comprising: The utility model relates to a thermoplastic flat plate forming die, and belongs to the field of thermoplastic flat plate forming die. The utility model discloses a thermoplastic flat plate forming die which comprises a die body assembly (1) and a support assembly (2). The die body assembly (1) comprises a first die body (101) and a second die body (102) which are correspondingly arranged.
2. The thermoplastic flat sheet forming mold of claim 1, wherein, The first die body (101) is provided with a first heating pipe (1011) and a first uniform heating plate (1012), and / or the second die body (102) is provided with a second heating pipe (1021) and a second uniform heating plate (1022).
3. The thermoplastic flat sheet forming mold of claim 2, wherein, The first uniform heating plate (1012) uniformly distributes the heat generated by the first heating pipe (1011) to the first die body (101), and the second uniform heating plate (1022) uniformly distributes the heat generated by the second heating pipe (1021) to the second die body (102).
4. The thermoplastic flat sheet forming mold of claim 3, wherein, The first die body (101) and the second die body (102) are suitable for placing laminated films therebetween.
5. The thermoplastic flat sheet forming mold of claim 4, wherein, The first die body (101) and the second die body (102) are driven to move relative to each other to heat-press and form the laminated films into a laminated plate (3).
6. The thermoplastic flat sheet forming mold of claim 4, wherein, The first die body (101) is provided with a first temperature sensor (1013), and the second die body (102) is provided with a second temperature sensor (1023).
7. The thermoplastic flat sheet forming mold of claim 6, wherein, The first heating pipe (1011) and the second heating pipe (1021) are arranged in a serpentine shape, respectively.
8. A press system characterized by, The support assembly (2) is provided with a first support plate (201) and a second support plate (202).
9. The press system of claim 8, wherein, The first support plate (201) is located above the first die body (101), and the first support plate (201) and the second support plate (202) are arranged at intervals.
10. The press system of claim 9, wherein, The first support plate (201) and the second support plate (202) are suitable for placing the laminated plate (3) therebetween. The support assembly (2) is provided with a support piece (4) arranged between the first support plate (201) and the second support plate (202). The first support plate (201) and the laminated plate (3) are provided with a release film therebetween, and the second support plate (202) and the laminated plate (3) are provided with a release film therebetween. The utility model also discloses a controller which is connected with the first heating pipe (1011), the second heating pipe (1021), the first temperature sensor and the second temperature sensor, respectively. The utility model discloses a thermoplastic flat plate forming die. The utility model also discloses a press machine which comprises a first station (5) and a second station (6). The first station (5) or the second station (6) is suitable for mounting the die body assembly (1). The utility model also discloses a conveying assembly (7) which is suitable for conveying the die body assembly (1) from the first station (5) to the second station (6), or conveying the die body assembly (1) from the second station (6) to the first station (5).