Vacuum plastic uptake forming machine for producing musical instrument box

Abstract

The utility model relates to the technical field of vacuum plastic uptake forming machines, in particular to a vacuum plastic uptake forming machine for producing musical instrument boxes, which comprises a vacuum plastic uptake forming machine main body, a mold plate and a mold, a cooling chamber is arranged in the mold, a plurality of partition plates are fixedly arranged on the top wall and the bottom wall of the cooling chamber, and the partition plates are arranged on the mold plate. A circulation gap is formed between every two adjacent partition plates, a cooling assembly used for cooling the mold is arranged on the vacuum plastic uptake forming machine body, and the cooling assembly comprises a storage box arranged on one side of the vacuum plastic uptake forming machine body. A conveying pump used for conveying cooling liquid in the storage box into the cooling cavity for cooling is arranged on the storage box, the cooling cavity communicates with the storage box through a backflow pipe and a second hose, and a plurality of semiconductor chilling plates are fixedly installed on a top plate body of the storage box. According to the utility model, rapid cooling is facilitated, and vacuum plastic molding of the musical instrument box is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming machine technology, specifically to a vacuum forming machine for producing musical instrument cases. Background Technology

[0002] In the modern musical instrument case manufacturing industry, vacuum forming machines have become the core equipment for producing various musical instrument cases due to their efficient and convenient forming process. By heating and softening thermoplastic sheets, vacuum suction is used to make them adhere to the surface of the mold. After cooling and shaping, a musical instrument case that meets the requirements can be obtained. This process can achieve precise shaping of complex shapes and is widely used in the production of guitar cases, violin cases, etc.

[0003] The invention patent with authorization announcement number CN112297400A discloses a vacuum forming machine, including a blow molding box. A control box is fixedly connected to the front surface of the blow molding box. The control box is equipped with a controller and a microcontroller. A square groove is integrally formed on the upper surface of the blow molding box. An infrared transmitter is fixedly connected to the left side of the inner wall of the square groove, and an infrared receiver is fixedly connected to the right side of the inner wall of the square groove. When the mold is placed on the support plate, the gravity sensor converts the gravity into a usable electrical signal and transmits it to the infrared transmitter. At this time, the infrared transmitter is triggered to start. When the signal from the infrared transmitter is not received by the infrared receiver, the microcontroller sends a command to the controller to cause the second electric push rod to move downward. After the infrared transmitter and the infrared receiver are connected, the microcontroller receives the signal and issues a stop operation command. The mold is hidden in the blow molding box, which changes the traditional blow molding machine where the mold is embedded in the lower part of the blow molding box.

[0004] While this technical solution has its advantages, current mainstream solutions generally employ natural cooling technology, which also has some shortcomings in the context of rapid and efficient vacuum forming. For example, traditional natural cooling methods cannot quickly lower the mold to a suitable temperature, hindering the rapid cooling and forming of the plastic part, thus extending the entire production cycle and severely impacting production efficiency. Therefore, we propose a vacuum forming machine for producing musical instrument cases. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum forming machine for producing musical instrument cases, so as to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vacuum forming machine for producing musical instrument cases includes a vacuum forming machine body, a mold plate disposed on the vacuum forming machine body, and a mold mounted on the upper surface of the mold plate. A cooling chamber is provided inside the mold. Multiple partitions are fixedly installed on the top and bottom walls of the cooling chamber, and a flow gap is provided between adjacent partitions. A cooling assembly for cooling the mold is provided on the vacuum forming machine body. The cooling assembly includes a storage tank disposed on one side of the vacuum forming machine body. A delivery pump is provided on the storage tank for transporting coolant from the storage tank to the cooling chamber for cooling. The cooling chamber and the storage tank are connected via a return pipe and a second flexible hose. Multiple semiconductor cooling chips are fixedly installed on the top plate of the storage tank.

[0008] Preferably, the outer surface of the storage box is provided with an insulation layer, and the capacity of the storage box is between 10L and 15L.

[0009] Preferably, the inlet end of the delivery pump is connected to the inside of the storage tank via a suction pipe, the outlet end of the delivery pump is fixedly equipped with a delivery pipe, and the end of the delivery pipe is fixedly equipped with a first flexible hose, which is connected to the cooling chamber.

[0010] Preferably, the outlet end of the return pipe is fixedly installed on the storage tank, the outlet end of the second hose is fixedly installed on the inlet end of the return pipe, and the inlet end of the second hose is connected to the cooling chamber.

[0011] Preferably, threaded pipes are fixedly installed on the bottom walls of both the left and right ends of the cooling chamber, and threaded connectors are fixedly installed at the ends of the first hose and the second hose, with the threaded connectors being threadedly connected to the threaded pipes.

[0012] This design facilitates the installation of the first and second hoses without affecting the normal vertical movement of the mold plate.

[0013] Preferably, an addition tube is fixedly installed on the top surface of the storage box, and a threaded cap is threadedly connected to the addition tube;

[0014] This setting allows coolant to be added via the add-in pipe.

[0015] Preferably, the thermoelectric cooler is plugged into the storage box, and a fixing plate is fixedly installed on the multiple thermoelectric coolers. The fixing plate is detachably installed on the top surface of the storage box, and multiple heat-conducting columns are fixedly installed on the cooling end of the thermoelectric cooler. The heat-conducting columns are inserted into the coolant in the storage box.

[0016] This setting facilitates the fixed installation of the thermoelectric cooler while ensuring that the thermoelectric cooler can perform cooling operations normally.

[0017] Preferably, the heat dissipation end of the semiconductor refrigeration chip is located outside the storage box, and the heat dissipation end of the semiconductor refrigeration chip is provided with a heat utilization component. The heat utilization component includes a ventilation pipe that is vertically fixedly installed on the heat dissipation end of the semiconductor refrigeration chip, a fan is fixedly installed on the inner wall of the ventilation pipe, and an air outlet shroud is fixedly installed on the top of the ventilation pipe.

[0018] This feature allows the heat from the heat dissipation end of the thermoelectric cooler to be transferred to the raw material part that needs to be heated for preliminary preheating.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, by setting a cooling chamber with baffles and flow gaps, changes the flow path of the coolant in the mold, allowing the coolant to come into more full contact with the mold and carry away heat, thus achieving efficient cooling of the mold, shortening the molding cycle and improving production efficiency. At the same time, the coolant flows in a meandering manner in the chamber, ensuring uniform cooling of all parts of the mold, avoiding quality problems such as dimensional deviations and surface deformation of the instrument case caused by uneven cooling, effectively improving product quality and facilitating the production and preparation of instrument cases.

[0021] 2. This utility model achieves circulating cooling of the coolant by setting up a coolant circulation system consisting of a storage tank, a delivery pump, a return pipe, and a hose, in conjunction with a semiconductor cooling chip on the top of the storage tank. This ensures that there is always a low-temperature coolant to cool the mold, avoiding the problem of reduced cooling effect after the coolant temperature rises. This further accelerates the cooling speed of the mold, improves production efficiency, and is beneficial for the production and preparation of musical instrument cases.

[0022] 3. This utility model, by setting a heat utilization component at the heat dissipation end of the semiconductor refrigeration chip, dissipates the heat generated by the semiconductor refrigeration chip during operation through a fan and ventilation pipe, thereby realizing the recovery and utilization of heat, avoiding energy waste, and reducing production costs; at the same time, it effectively solves the heat dissipation problem of the semiconductor refrigeration chip, ensuring its stable operation and extending the service life of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0025] Figure 3This is the second partial structural schematic diagram of the present utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0027] The meanings of the labels in the diagram are as follows:

[0028] 1. Vacuum forming machine body; 10. Mold plate; 11. Mold; 12. Cooling chamber; 13. Baffle plate; 14. Flow gap; 15. Threaded pipe;

[0029] 2. Cooling assembly; 20. Storage tank; 201. Insulation layer; 21. Delivery pump; 22. Suction pipe; 23. Delivery pipe; 24. First hose; 25. Return pipe; 26. Second hose; 27. Threaded connector; 28. Addition pipe; 281. Threaded cap; 29. ​​Semiconductor cooling chip; 291. Fixing plate; 292. Heat-conducting column;

[0030] 3. Heat utilization components; 30. Ventilation duct; 31. Fan; 32. Air outlet cover. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0032] Please see Figures 1-4 This utility model provides a technical solution: a vacuum forming machine for producing musical instrument cases, comprising a vacuum forming machine body 1, a mold plate 10 disposed on the vacuum forming machine body 1, and a mold 11 mounted on the upper surface of the mold plate 10. A cooling chamber 12 is provided inside the mold 11. Multiple partitions 13 are fixedly installed on the top and bottom walls of the cooling chamber 12. A flow gap 14 is provided between adjacent partitions 13, allowing the coolant to form a tortuous flow path within the mold 11. This effectively increases the contact area and contact time between the coolant and the mold 11, enabling more thorough removal of heat from the mold 11. This achieves efficient and uniform cooling of the mold 11, avoiding problems such as dimensional deviations and surface deformation of the musical instrument case caused by uneven cooling, thus improving product quality. Simultaneously, it significantly shortens the cooling time of the mold 11, thereby increasing production efficiency.

[0033] In this embodiment, a cooling assembly 2 for cooling the mold 11 is provided on the main body 1 of the vacuum forming machine. The cooling assembly 2 includes a storage tank 20 disposed on one side of the main body 1 of the vacuum forming machine. A delivery pump 21 is provided on the storage tank 20 for delivering the coolant in the storage tank 20 to the cooling chamber 12 for cooling. The cooling chamber 12 and the storage tank 20 are connected by a return pipe 25 and a second flexible hose 26. A plurality of semiconductor cooling chips 29 are fixedly installed on the top plate of the storage tank 20. The liquid inlet end of the delivery pump 21 is connected to the inside of the storage tank 20 by a suction pipe 22. A delivery pipe 23 is fixedly installed on the liquid outlet end of the delivery pump 21. A first flexible hose 24 is fixedly installed at the end of the delivery pipe 23. The first flexible hose 24 is connected to... The cooling chambers 12 are connected, and the outlet end of the return pipe 25 is fixedly installed on the storage tank 20. The outlet end of the second hose 26 is fixedly installed on the inlet end of the return pipe 25. The inlet end of the second hose 26 is connected to the cooling chamber 12, realizing continuous circulation and cooling of the coolant. The delivery pump 21 delivers the low-temperature coolant in the storage tank 20 to the cooling chamber 12. The used coolant flows back to the storage tank 20 through the return pipe 25 and the second hose 26, and is cooled by the semiconductor cooling chip 29 and recycled again, ensuring that there is always low-temperature coolant to cool the mold 11, avoiding the cooling effect from decreasing due to the increase in coolant temperature, further improving the cooling speed and cooling effect stability of the mold 11, and ensuring production efficiency and product quality consistency.

[0034] like Figure 2 As shown, an insulation layer 201 is provided on the outer surface of the storage tank 20. The capacity of the storage tank 20 is between 10L and 15L. This effectively reduces the heat exchange between the coolant inside the storage tank 20 and the outside, reduces the temperature loss of the coolant, and allows the coolant to maintain a low temperature for a longer period of time. This improves the cooling efficiency and utilization efficiency of the coolant, ensures the stable and reliable cooling effect of the cooling component 2, and reduces energy consumption.

[0035] like Figure 3 and Figure 4 As shown, threaded pipes 15 are fixedly installed on the bottom walls of both the left and right ends of the cooling chamber 12. Threaded connectors 27 are fixedly installed at the ends of the first hose 24 and the second hose 26. The threaded connectors 27 are threadedly connected to the threaded pipes 15, which facilitates the installation of the first hose 24 and the second hose 26. At the same time, since the first hose 24 and the second hose 26 are both soft tubes, they will not affect the normal up-and-down movement of the mold plate 10.

[0036] like Figure 3As shown, an addition pipe 28 is fixedly installed on the top surface of the storage tank 20. A threaded cap 281 is threadedly connected to the addition pipe 28. When coolant needs to be added, simply unscrew the threaded cap 281 to conveniently and quickly add coolant to the storage tank 20 through the addition pipe 28. The operation is simple and convenient, ensuring that the cooling component 2 can operate continuously and stably without disassembling other parts, thus improving the convenience of equipment maintenance.

[0037] like Figure 3 As shown, the thermoelectric cooler 29 is plugged into the storage box 20. A fixing plate 291 is fixedly installed on multiple thermoelectric coolers 29. The fixing plate 291 is detachably installed on the top surface of the storage box 20, which facilitates the fixing and installation of the thermoelectric cooler 29 and ensures that the thermoelectric cooler 29 can perform normal cooling operation. Multiple heat conduction columns 292 are fixedly installed on the cooling end of the thermoelectric cooler 29. The heat conduction columns 292 are inserted into the coolant in the storage box 20, which can quickly transfer the cold energy of the cooling end of the thermoelectric cooler 29 to the coolant, ensuring that the thermoelectric cooler 29 can efficiently cool the coolant and provide a stable source of low temperature coolant for the cooling of the mold 11.

[0038] It is worth noting that the heat dissipation end of the thermoelectric cooler 29 is located outside the storage box 20. The heat dissipation end of the thermoelectric cooler 29 is equipped with a heat utilization component 3. The heat utilization component 3 includes a ventilation pipe 30 that is vertically fixedly installed on the heat dissipation end of the thermoelectric cooler 29. A fan 31 is fixedly installed on the inner wall of the ventilation pipe 30. An air outlet shroud 32 is fixedly installed at the top of the ventilation pipe 30. The air outlet shroud 32 faces the raw material area. By using the ventilation pipe 30, the fan 31 and the air outlet shroud 32, the heat generated by the heat dissipation end of the thermoelectric cooler 29 is collected and transported to the raw material area that needs to be heated, so as to preheat the raw material and realize the recovery and reuse of heat, reducing energy waste. At the same time, it effectively solves the heat dissipation problem of the thermoelectric cooler 29, ensures its stable operation, and extends the service life of the thermoelectric cooler 29 and the entire equipment.

[0039] Finally, it should be noted that the components involved in this utility model, such as the delivery pump 21, fan 31, and semiconductor cooling chip 29, are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection methods should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0040] When using the vacuum forming machine for producing musical instrument cases, the threaded cover 281 is opened, and an appropriate amount of coolant is injected into the storage tank 20 through the adding pipe 28. Then, the vacuum forming operation begins. After the forming is completed, the delivery pump 21 starts working and draws low-temperature coolant from the storage tank 20 through the suction pipe 22. The coolant is then sent into the cooling chamber 12 through the delivery pipe 23 and the first hose 24. In the cooling chamber 12, the coolant flows along the tortuous path formed by the partition 13 and the flow gap 14, fully absorbing the heat of the mold 11. The used coolant flows back to the storage tank 20 through the second hose 26 and the return pipe 25. The semiconductor cooling chip 29, together with the heat-conducting column 292, cools the coolant, realizing circulating cooling, promoting rapid cooling of the plastic parts and cooling of the mold 11.

[0041] After the mold 11 cools down, the formed musical instrument box is demolded. During this process, the heat utilization component 3 at the heat dissipation end of the semiconductor cooling chip 29 is activated, and the fan 31 delivers heat to the raw material part for preheating through the ventilation pipe 30 and the air outlet shroud 32.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum forming machine for producing musical instrument cases, comprising a vacuum forming machine body (1), a mold plate (10) disposed on the vacuum forming machine body (1), and a mold (11) mounted on the upper surface of the mold plate (10), characterized in that: The mold (11) is provided with a cooling chamber (12). Multiple partitions (13) are fixedly installed on the top and bottom walls of the cooling chamber (12). A flow gap (14) is provided between two adjacent partitions (13). The vacuum forming machine body (1) is provided with a cooling component (2) for cooling the mold (11). The cooling component (2) includes a storage box (20) on one side of the vacuum forming machine body (1). The storage box (20) is provided with a delivery pump (21) for delivering the coolant in the storage box (20) to the cooling chamber (12) for cooling. The cooling chamber (12) and the storage box (20) are connected by a return pipe (25) and a second hose (26). Multiple semiconductor cooling chips (29) are fixedly installed on the top plate of the storage box (20).

2. The vacuum forming machine for producing musical instrument cases according to claim 1, characterized in that: The storage box (20) has an insulation layer (201) on its outer surface and the capacity of the storage box (20) is between 10L and 15L.

3. The vacuum forming machine for producing musical instrument cases according to claim 1, characterized in that: The inlet end of the delivery pump (21) is connected to the inside of the storage tank (20) through a suction pipe (22). The outlet end of the delivery pump (21) is fixedly installed with a delivery pipe (23). The end of the delivery pipe (23) is fixedly installed with a first flexible hose (24). The first flexible hose (24) is connected to the cooling chamber (12).

4. The vacuum forming machine for producing musical instrument cases according to claim 3, characterized in that: The liquid outlet of the return pipe (25) is fixedly installed on the storage tank (20), and the liquid outlet of the second hose (26) is fixedly installed on the liquid inlet of the return pipe (25). The liquid inlet of the second hose (26) is connected to the cooling chamber (12).

5. The vacuum forming machine for producing musical instrument cases according to claim 4, characterized in that: Threaded pipes (15) are fixedly installed on the bottom walls of both the left and right ends of the cooling chamber (12). Threaded connectors (27) are fixedly installed at the ends of the first hose (24) and the second hose (26). The threaded connectors (27) are threadedly connected to the threaded pipes (15).

6. The vacuum forming machine for producing musical instrument cases according to claim 1, characterized in that: An adding tube (28) is fixedly installed on the top surface of the storage box (20), and a threaded cap (281) is threadedly connected to the adding tube (28).

7. The vacuum forming machine for producing musical instrument cases according to claim 1, characterized in that: The semiconductor cooling chip (29) is inserted into the storage box (20). A fixing plate (291) is fixedly installed on the semiconductor cooling chip (29). The fixing plate (291) is detachably installed on the top surface of the storage box (20). A plurality of heat-conducting columns (292) are fixedly installed on the cooling end of the semiconductor cooling chip (29). The heat-conducting columns (292) are inserted into the coolant in the storage box (20).

8. The vacuum forming machine for producing musical instrument cases according to claim 1, characterized in that: The heat dissipation end of the semiconductor cooling chip (29) is located outside the storage box (20). The heat dissipation end of the semiconductor cooling chip (29) is provided with a heat utilization component (3). The heat utilization component (3) includes a ventilation pipe (30) that is vertically fixedly installed on the heat dissipation end of the semiconductor cooling chip (29). A fan (31) is fixedly installed on the inner wall of the ventilation pipe (30). An air outlet cover (32) is fixedly installed at the top of the ventilation pipe (30).

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