Glass fiber molding product hot press forming mold

Abstract

The utility model discloses a kind of glass fiber molding plastic product hot-pressing forming mould, it is related to forming mould technical field, including bottom plate and cooling assembly;Bottom plate: the middle part of upside is fixed with installation box, lower female die is placed in the inside of installation box, the upside of bottom plate is equipped with compression assembly, the downside of compression assembly is equipped with upper male die assembly, upper male die assembly and lower female die correspond to each other, the inside of installation box is equipped with fixed component;Cooling assembly: including cooling pipe, water tank, water pump, outlet tube, return pipe and temperature sensor, the inside of installation box is equipped with serpentine groove, the inside of serpentine groove is fixed with cooling pipe, the rear end of bottom plate upside is fixed with water tank, the inside of water tank is equipped with water pump, the inside of water outlet of water pump is fixed with outlet tube, the front end of outlet tube is connected with the right end of cooling pipe, different production can be adapted without replacing integral mould.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, specifically a hot pressing mold for glass fiber molding compound products. Background Technology

[0002] In traditional thermoforming processes for glass fiber molding compounds (such as SMC / BMC), the adaptability of molds is significantly limited. A single mold structure can only produce products of fixed sizes, and its cavity dimensions and structural design are deeply bound to the geometry of a specific product. When it is necessary to switch to products of different specifications or structures, the entire mold set must be replaced to adapt to the molding requirements of the new product. This rigid design not only leads to a surge in mold inventory but also significantly increases the company's fixed asset investment costs.

[0003] Furthermore, frequent mold changes severely restrict production efficiency. Production lines need to be shut down to disassemble existing molds and reinstall and debug new ones, resulting in long changeover cycles and cumbersome procedures, leading to production disruptions and idle resources. For customized production scenarios with multiple varieties and small batches, the lack of versatility of traditional molds further exacerbates the pressure on manufacturing costs and delivery cycles, making it difficult to meet the core demands of modern manufacturing for flexible production. To address this, we propose a thermoforming mold for glass fiber molding compound products. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a hot pressing mold for glass fiber molding compound products, which can be adapted to different production without changing the overall mold, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot pressing mold for glass fiber molding compound products, comprising a base plate and a cooling assembly;

[0006] Base plate: A mounting box is fixed in the middle of the upper side. A lower concave mold is placed inside the mounting box. A pressing assembly is installed on the upper side of the base plate. An upper punch assembly is installed on the lower side of the pressing assembly. The upper punch assembly and the lower concave mold correspond to each other. A fixing assembly is installed inside the mounting box.

[0007] Cooling assembly: includes cooling pipes, a water tank, a water pump, an outlet pipe, a return pipe, and a temperature sensor. The mounting box has a serpentine groove inside, and the cooling pipe is fixed inside the serpentine groove. The water tank is fixed to the rear end of the upper side of the base plate, and the water pump is installed inside the water tank. An outlet pipe is fixed inside the outlet of the water pump, and the front end of the outlet pipe is connected to the right end of the cooling pipe. A return pipe is fixed to the left end inside the cooling pipe, and the rear end of the return pipe is connected to the return port of the water tank. A temperature sensor is installed inside the water tank, and a refrigeration assembly is installed on the rear side of the water tank. The temperature sensor is bidirectionally electrically connected to an external PLC controller, and the input end of the water pump is electrically connected to the output end of the external PLC controller. The cooling assembly is used to cool the pressurized product.

[0008] Furthermore, the cooling assembly includes a thermoelectric cooler, a mounting bracket, and a cooling fan. A groove is provided on the rear side of the water tank, and the thermoelectric cooler is installed inside the groove. The cooling end of the thermoelectric cooler is located inside the groove, and the heat dissipation end of the thermoelectric cooler is located outside the groove. The mounting bracket is fixed to the rear side of the water tank, and the cooling fan is installed inside the mounting bracket. The input ends of the thermoelectric cooler and the cooling fan are electrically connected to the output end of an external PLC controller. The cooling assembly is used to cool the water inside the water tank.

[0009] Furthermore, the pressing assembly includes a fixed frame, a hydraulic rod, and a connecting box. The fixed frame is fixed to the upper side of the base plate, and the hydraulic rod is installed on the upper side of the fixed frame. The connecting box is fixed to the telescopic arm of the hydraulic rod. The input end of the hydraulic rod is electrically connected to the output end of an external PLC controller. By setting the pressing assembly, the upper punch assembly is driven to move downward to press the pre-heated glass fiber molding compound.

[0010] Furthermore, the upper punch assembly includes a connecting block, a limiting plate, a protrusion, a locking rod, a connecting plate, and a spring. The connecting block is snapped into the inside of the connecting box. A limiting plate is fixed to the lower side of the connecting block, and a protrusion is fixed to the lower side of the limiting plate. Two corresponding connecting holes are opened on the front and rear sides of the connecting box. A locking rod is slidably connected inside the connecting holes. A locking hole is opened in the middle of the connecting block. The two locking rods are snapped into the front and rear ends inside the locking hole. A connecting plate is fixed to the end of the locking rod away from the locking hole. A spring is sleeved on the circumferential surface of the locking rod. One end of the spring is fixed to the end face of the connecting plate, and the other end of the spring is fixed to the side of the connecting box. The glass fiber molding compound is processed by setting the upper punch assembly in conjunction with the lower die.

[0011] Furthermore, the fixing assembly includes a first motor, a clamping frame, a bidirectional screw, and a limiting rod. The first motor is installed on the right side of the mounting box. Two corresponding clamping frames are arranged inside the mounting box. The lower die is located between the two clamping frames. The front side of the clamping frame has threaded holes with opposite threads. The two threaded holes are internally threaded with bidirectional screws. The bidirectional screw is welded from two threaded rods with opposite threads. The rear side of the clamping frame has limiting holes with sliding limiting rods inside the two limiting holes. The limiting rods are fixed inside the mounting box. The output shaft of the first motor is fixed to the right end of the bidirectional screw. The input end of the first motor is electrically connected to the output end of an external PLC controller. The fixing assembly is used to initially position and fix the lower die.

[0012] Furthermore, it also includes a fastening assembly, which includes an electric telescopic rod and a fastening plate. The electric telescopic rod is mounted on the side of the clamping frame, and a fastening plate is fixed on the telescopic arm of the electric telescopic rod. The lower die is located between the two fastening plates. The input end of the electric telescopic rod is electrically connected to the output end of an external PLC controller. The lower die is further positioned and fixed by setting the fastening assembly.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This glass fiber molding compound hot pressing mold has the following advantages:

[0014] 1. Through the design of modular lower die and upper punch components that can be quickly replaced, combined with a mechanized clamping and fixing mechanism, the same mold body achieves compatibility with products of different specifications. Operators only need to replace the matching mold core components to flexibly switch product types, completely avoiding the cumbersome process of disassembling and replacing the entire mold in traditional processes. This design significantly shortens production line changeover time and effectively supports the customized production needs of multiple varieties and small batches;

[0015] 2. The cooling system employs closed-loop temperature monitoring and semiconductor active cooling technology. By sensing the coolant temperature in real time and dynamically adjusting the cooling intensity, it ensures uniform and controllable temperature in the mold cavity. Compared to traditional natural cooling or single water cooling methods, this design significantly improves cooling efficiency and stability, effectively reducing defects such as deformation and cracking caused by local temperature differences in the products, and ensuring the molding precision and consistency of complex fiberglass products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cooling component structure of this utility model;

[0018] Figure 3This is a schematic diagram of the pressing component structure of this utility model.

[0019] In the diagram: 1. Base plate, 2. Mounting box, 3. Lower die, 4. Fixing assembly, 41. First motor, 42. Clamping frame, 43. Bidirectional screw, 44. Limiting rod, 5. Fastening assembly, 51. Electric telescopic rod, 52. Fastening plate, 6. Cooling assembly, 61. Cooling pipe, 62. Water tank, 63. Water pump, 64. Water outlet pipe, 65. Return pipe, 66. Temperature sensor, 7. Refrigeration assembly, 71. Semiconductor refrigeration chip, 72. Mounting bracket, 73. Cooling fan, 8. Pressing assembly, 81. Fixing bracket, 82. Hydraulic rod, 83. Connecting box, 9. Upper punch assembly, 91. Connecting block, 92. Limiting plate, 93. Protrusion, 94. Clamping rod, 95. Connecting disc, 96. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This embodiment provides a technical solution: a hot pressing mold for glass fiber molding compound products, including a base plate 1 and a cooling component 6;

[0022] Base plate 1: A mounting box 2 is fixed to the middle of the upper side. A lower die 3 is placed inside the mounting box 2. A pressing assembly 8 is installed on the upper side of the base plate 1. An upper punch assembly 9 is installed on the lower side of the pressing assembly 8. The upper punch assembly 9 corresponds to the lower die 3. A fixing assembly 4 is installed inside the mounting box 2. The pressing assembly 8 includes a fixing frame 81, a hydraulic rod 82, and a connecting box 83. A fixing frame 81 is fixed to the upper side of the base plate 1. A hydraulic rod 82 is installed on the upper side of the fixing frame 81. A connecting box 83 is fixed to the telescopic arm of the hydraulic rod 82. The input end of the hydraulic rod 82 is electrically connected to the output end of an external PLC controller. The upper punch assembly 9 includes a connecting block 91, a limit plate 92, a protrusion 93, a locking rod 94, and a connecting plate 95. 5 and spring 96, the connecting box 83 is internally fitted with a connecting block 91, the lower side of the connecting block 91 is fixed with a limit plate 92, the lower side of the limit plate 92 is fixed with a protrusion 93, the connecting box 83 has two corresponding connecting holes on the front and rear sides, the connecting holes are internally fitted with locking rods 94, the connecting block 91 has a locking hole in the middle, the two locking rods 94 are engaged with the front and rear ends inside the locking hole, the end of the locking rod 94 away from the locking hole is fixed with a connecting plate 95, the circumferential surface of the locking rod 94 is fitted with a spring 96, one end of the spring 96 is fixed with the end face of the connecting plate 95, the other end of the spring 96 is fixed with the side of the connecting box 83, the fixing assembly 4 includes a first motor 41, a clamping frame 42, and a bidirectional screw 4 3 and limit rod 44. The first motor 41 is installed on the right side of the mounting box 2. The mounting box 2 has two corresponding clamping frames 42. The lower die 3 is located between the two clamping frames 42. The front side of the clamping frame 42 has threaded holes with opposite threads. The internal threads of the two threaded holes are connected to a bidirectional screw 43, which is welded from two threaded rods with opposite threads. The rear side of the clamping frame 42 has limit holes. The internal threads of the two limit holes are connected to a limit rod 44, which is fixed inside the mounting box 2. The output shaft of the first motor 41 is fixed to the right end of the bidirectional screw 43. The input end of the first motor 41 is electrically connected to the output of an external PLC controller. The end also includes a fastening assembly 5, which includes an electric telescopic rod 51 and a fastening plate 52. The electric telescopic rod 51 is installed on the side of the clamping frame 42, and the fastening plate 52 is fixed on the telescopic arm of the electric telescopic rod 51. The lower die 3 is located between the two fastening plates 52. The input end of the electric telescopic rod 51 is electrically connected to the output end of an external PLC controller. The lower die 3 is further positioned and fixed by setting the fastening assembly 5. The lower die 3 is initially positioned and fixed by setting the fixing assembly 4. The glass fiber molding compound is processed by setting the upper punch assembly 9 in conjunction with the lower die 3. The glass fiber molding compound is pressed by setting the pressing assembly 8 to drive the upper punch assembly 9 to move downward.

[0023] Cooling assembly 6 includes a cooling pipe 61, a water tank 62, a water pump 63, an outlet pipe 64, a return pipe 65, and a temperature sensor 66. The mounting box 2 has a serpentine groove inside, and the cooling pipe 61 is fixed inside the serpentine groove. The water tank 62 is fixed to the rear end of the upper side of the base plate 1. The water pump 63 is installed inside the water tank 62. The outlet pipe 64 is fixed inside the outlet of the water pump 63. The front end of the outlet pipe 64 is connected to the right end of the cooling pipe 61. The return pipe 65 is fixed to the left end inside the cooling pipe 61. The rear end of the return pipe 65 is connected to the return port of the water tank 62. The temperature sensor 66 is installed inside the water tank 62. A refrigeration assembly 7 is installed at the rear of the water tank 62. The temperature sensor 66 is bidirectionally electrically connected to an external PLC controller. The input terminal of the water pump 63 is electrically connected to the output terminal of an external PLC controller. The cooling assembly 7 includes a thermoelectric cooler 71, a mounting bracket 72, and a cooling fan 73. A groove is provided on the rear side of the water tank 62, and the thermoelectric cooler 71 is installed inside the groove. The cooling end of the thermoelectric cooler 71 is located inside the groove, and the heat dissipation end of the thermoelectric cooler 71 is located outside the groove. The mounting bracket 72 is fixed on the rear side of the water tank 62, and the cooling fans 73 are evenly distributed inside the mounting bracket 72. The input terminals of the thermoelectric cooler 71 and the cooling fans 73 are both electrically connected to the output terminal of an external PLC controller. The cooling assembly 7 is used to cool the water inside the water tank 62, and the cooling assembly 6 is used to cool the pressurized product.

[0024] The working principle of the thermoforming mold for glass fiber molding compound products provided by this utility model is as follows: When it is necessary to produce products of different specifications, firstly, the lower die 3 matching the product size is placed in the mounting box 2. Then, the two clamping rods 94 are pulled away from the clamping holes in the middle of the connecting block 91 to remove the connecting block 91. Then, the protrusion 93 that matches the lower die 3 is replaced. After the replacement is completed, the first motor 41 of the fixing component 4 is started to drive the bidirectional screw 43 to rotate, so that the clamping frames 42 on both sides move inward synchronously along the limiting rod 44 to initially clamp the lower die 3. Then, the electric telescopic rod 51 of the fastening component 5 is started to push the fastening... Plate 52 further locks the lower die 3 to ensure its stable positioning. Then, the preheated glass fiber molding compound is placed into the cavity of the lower die 3. The hydraulic rod 82 of the pressing assembly 8 drives the connecting box 83 to press down, causing the protrusion 93 of the upper punch assembly 9 to close with the lower die 3 for pressing. After pressing, the water pump 63 pumps the coolant in the water tank 62 into the cooling pipe 61 through the outlet pipe 64. The cooling pipe 61 is embedded in the periphery of the cavity of the mounting box 2 to evenly absorb the heat of the mold. The heated coolant returns to the water tank 62 through the return pipe 65. At this time, the semiconductor cooling chip 71 of the cooling assembly 7 cools the coolant in real time with the assistance of the cooling fan 73. Figure 2 Temperature sensor 66 monitors the coolant temperature and feeds it back to the PLC controller to dynamically adjust the cooling intensity. After cooling is complete, hydraulic rod 82 retracts and lifts the upper punch assembly 9, allowing the product to be removed.

[0025] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The first motor 41, electric telescopic rod 51, water pump 63, semiconductor cooling chip 71, cooling fan 73, hydraulic rod 82 and temperature sensor 66 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the first motor 41, electric telescopic rod 51, water pump 63, semiconductor cooling chip 71, cooling fan 73 and hydraulic rod 82 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A glass fiber molding compound article hot press forming mold characterized by: Includes a base plate (1) and a cooling assembly (6); Base plate (1): A mounting box (2) is fixed in the middle of the upper side. A lower concave mold (3) is placed inside the mounting box (2). A pressing assembly (8) is installed on the upper side of the base plate (1). An upper punch assembly (9) is installed on the lower side of the pressing assembly (8). The upper punch assembly (9) corresponds to the lower concave mold (3). A fixing assembly (4) is installed inside the mounting box (2). Cooling assembly (6): includes cooling pipe (61), water tank (62), water pump (63), outlet pipe (64), return pipe (65), and temperature sensor (66). The mounting box (2) has a serpentine groove inside, and the cooling pipe (61) is fixed inside the serpentine groove. The water tank (62) is fixed at the rear end of the upper side of the base plate (1). The water pump (63) is installed inside the water tank (62). The outlet pipe (64) is fixed inside the outlet of the water pump (63). 4) The front end is connected to the right end of the cooling pipe (61). The left end of the cooling pipe (61) is fixed with a return pipe (65). The rear end of the return pipe (65) is connected to the return port of the water tank (62). The water tank (62) is equipped with a temperature sensor (66). The rear side of the water tank (62) is equipped with a refrigeration component (7). The temperature sensor (66) is bidirectionally electrically connected to an external PLC controller. The input end of the water pump (63) is electrically connected to the output end of the external PLC controller.

2. The thermoforming mold for glass fiber molding compound products according to claim 1, characterized in that: The cooling assembly (7) includes a semiconductor cooling chip (71), a mounting bracket (72), and a cooling fan (73). A groove is provided on the rear side of the water tank (62). The semiconductor cooling chip (71) is installed inside the groove. The cooling end of the semiconductor cooling chip (71) is located inside the groove, and the heat dissipation end of the semiconductor cooling chip (71) is located outside the groove. The mounting bracket (72) is fixed on the rear side of the water tank (62). The cooling fans (73) are evenly distributed inside the mounting bracket (72). The input ends of the semiconductor cooling chip (71) and the cooling fans (73) are electrically connected to the output end of an external PLC controller.

3. The thermoforming mold for glass fiber molding compound products according to claim 1, characterized in that: The pressing assembly (8) includes a fixed frame (81), a hydraulic rod (82) and a connecting box (83). The fixed frame (81) is fixed on the upper side of the base plate (1). The hydraulic rod (82) is installed on the upper side of the fixed frame (81). The connecting box (83) is fixed on the telescopic arm of the hydraulic rod (82). The input end of the hydraulic rod (82) is electrically connected to the output end of an external PLC controller.

4. The thermoforming mold for glass fiber molding compound products according to claim 3, characterized in that: The upper punch assembly (9) includes a connecting block (91), a limiting plate (92), a protrusion (93), a locking rod (94), a connecting plate (95), and a spring (96). The connecting box (83) is fitted with the connecting block (91). The lower side of the connecting block (91) is fixed with the limiting plate (92). The lower side of the limiting plate (92) is fixed with the protrusion (93). The connecting box (83) has two corresponding connecting holes on its front and rear sides. The locking rod (94) is slidably connected inside the connecting holes. The connecting block (91) has a locking hole in its middle. The two locking rods (94) are fitted into the front and rear ends inside the locking hole. The end of the locking rod (94) away from the locking hole is fixed with the connecting plate (95). The circumferential surface of the locking rod (94) is fitted with the spring (96). One end of the spring (96) is fixed to the end face of the connecting plate (95), and the other end of the spring (96) is fixed to the side of the connecting box (83).

5. The thermoforming mold for glass fiber molding compound products according to claim 1, characterized in that: The fixing component (4) includes a first motor (41), a clamping frame (42), a bidirectional screw (43), and a limiting rod (44). The first motor (41) is installed on the right side of the mounting box (2). The mounting box (2) has two corresponding clamping frames (42) inside. The lower die (3) is located between the two clamping frames (42). The front side of the clamping frame (42) has a threaded hole with opposite threads. The two threaded holes are connected to the bidirectional screw (43) by internal threads. The bidirectional screw (43) is welded from two threaded rods with opposite threads. The rear side of the clamping frame (42) has a limiting hole. The two limiting holes are slidably connected to the limiting rod (44). The limiting rod (44) is fixed inside the mounting box (2). The output shaft of the first motor (41) is fixed to the right end of the bidirectional screw (43). The input end of the first motor (41) is electrically connected to the output end of an external PLC controller.

6. The thermoforming mold for glass fiber molding compound products according to claim 5, characterized in that: It also includes a fastening assembly (5), which includes an electric telescopic rod (51) and a fastening plate (52). The electric telescopic rod (51) is mounted on the side of the clamping frame (42). The fastening plate (52) is fixed on the telescopic arm of the electric telescopic rod (51). The lower die (3) is located between the two fastening plates (52). The input end of the electric telescopic rod (51) is electrically connected to the output end of an external PLC controller.

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