Injection molding device for loudspeaker cabinet

Abstract

The utility model discloses a kind of injection molding devices for loudspeaker cabinet production, it is related to injection molding technical field, including base, the base upper portion is provided with mould seat, the heat exchange cavity of through type is opened in the one side of mould seat, two heat exchange plates of being fixedly arranged are slidably arranged in the heat exchange cavity, heat exchange pipeline in the heat exchange plate is formed with spiral arrangement, heating mechanism and refrigeration mechanism that the base upper portion is provided with respectively to the hot liquid and cold liquid that two heat exchange pipelines are sent into, and the injection molding device for loudspeaker cabinet production, by setting two heat exchange plates, and setting heating mechanism and refrigeration mechanism, so it can be completed to the heating and refrigeration of mould seat by adjusting the position of two heat exchange plates, thus ensure that material in injection molding process does not cool in advance, and ensure that injection molding piece after injection molding is completed can be heat exchanged and quickly cooled and quickly discharged, thereby effectively improve the working efficiency and effect of injection molding device for loudspeaker cabinet production.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically an injection molding device for producing speaker housings. Background Technology

[0002] Injection molding is a method of shaping industrial products. Products are typically made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting. An injection molding machine (or injection molding machine for short) is the main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting materials. Injection molding is achieved through an injection molding machine and molds. Currently, speaker housings are mostly processed and shaped using injection molding equipment.

[0003] In the prior art, patent announcement number CN220517481U discloses an injection mold for producing speaker housings, including a base. A mold base is fixedly connected to the top of the base, and a heat sink is fixedly connected to the middle of the mold base. Two outer frames are fixedly connected to the top of the base, and a connecting block is fixedly connected to the middle of the two outer frames. A motor is fixedly connected to the middle of the connecting block, and a fan blade is fixedly connected to the output end of the motor. Air inlets are provided on both the left and right sides of the mold base, and an air outlet is provided on the rear side of the mold base. A water pump is fixedly connected to the bottom of the inner wall of the base, and a circulation pipe is fixedly connected to the output end of the water pump. In this invention, the heat sink, connecting block, water pump, and fan blades work together to absorb heat from the base, further improving the cooling effect. This achieves rapid cooling during the melting and molding process of the plastic raw material, increasing the molding speed of the plastic raw material and improving production efficiency.

[0004] While the above-mentioned solution offers many advantages, it also has the following drawbacks: the device rapidly cools the injection molded parts by using heat sinks and fans, but this method also lowers the temperature of the mold base itself. During secondary or multiple injection molding operations, the injection material will be prematurely cooled when entering the mold cavity due to the low temperature of the mold base itself. This affects the filling of the mold cavity cavity with the material and the molding quality of the injection molded parts, thus reducing the practicality of the injection molding device for speaker housing production. Utility Model Content

[0005] The purpose of this utility model is to provide an injection molding device for producing speaker housings, so as to solve the problem of low practicality of the current injection molding devices for producing speaker housings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection molding device for producing speaker housings, comprising a base, a mold base on the upper part of the base, a through-type heat exchange cavity on one side of the mold base, two heat exchange plates fixedly arranged in the heat exchange cavity, heat exchange pipes arranged in a spiral pattern formed within the heat exchange plates, a heating mechanism for conveying hot liquid and cold liquid to the two heat exchange pipes respectively, and a cooling mechanism on the upper part of the base, a driving mechanism for driving the heat exchange plates to slide within the heat exchange cavity, a support frame fixedly arranged on the upper part of the mold base, an upper template slidably arranged on the support frame, the upper template being directly above the mold base, a hydraulic cylinder mounted on the support frame, and the piston rod of the hydraulic cylinder being fixed to the upper part of the upper template.

[0007] Preferably, the heat exchange plate includes a U-shaped heat-conducting plate, and a U-shaped heat insulation plate is fixedly sleeved on the outside of the U-shaped heat-conducting plate, and the heat exchange pipe is formed inside the U-shaped heat-conducting plate.

[0008] Preferably, the upper part of the mold base is formed with a mold groove, a heat-conducting baffle is provided between the bottom of the mold groove and the top wall of the heat exchange chamber, and an injection hole and an exhaust hole are formed on one side of the mold groove.

[0009] Preferably, the heating mechanism includes a heating water tank and a first water pump installed on the upper part of the base. Heating rods and a power supply mechanism are respectively installed on the inner and outer sides of the heating water tank. The power supply mechanism is electrically connected to the heating rods. The water outlet of the heating water tank, the water inlet and outlet of the first water pump, the two ends of the heat exchange pipe on the right side, and the water inlet of the heating water tank are all fixedly connected through a first guide pipe.

[0010] Preferably, the refrigeration mechanism includes a water storage tank, a second water pump, and a chiller installed on the upper part of the base. The water outlet of the water storage tank, the water inlet and outlet of the second water pump, the water inlet and outlet of the chiller, the two ends of the left heat exchange pipe, and the water inlet of the water storage tank are all fixedly connected through a second guide pipe. The upper parts of the water storage tank and the heating water tank are both fixedly connected to a water inlet pipe, and the top of the water inlet pipe is threaded with a sealing cover. The side of the water storage tank and the heating water tank are both fixedly connected to a drain pipe, and a switch valve is provided on the drain pipe. The upper parts of the water storage tank and the heating water tank are both provided with an exhaust valve. The first guide pipe and the second guide pipe are both made of high-temperature resistant and heat-insulating flexible hose material.

[0011] Preferably, an installation groove is formed on the bottom wall inside the heat exchange chamber, and the sliding drive mechanism includes a cylinder installed on the inner wall of the installation groove, with the piston rod end of the cylinder fixedly connected to the bottom of the heat exchange plate.

[0012] Preferably, the mold base is fixedly connected to sealing cover plates at both ends of the heat exchange cavity, and the upper part of the heat exchange plate is in contact with the bottom of the sealing cover plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application sets up two heat exchange plates and sets up a heating mechanism and a cooling mechanism. By adjusting the position of the two heat exchange plates, the heating and cooling of the mold base can be completed. This ensures that the material does not cool down prematurely during the injection molding process, and that the injection molded part can be cooled down quickly and discharged quickly after heat exchange. This effectively improves the working efficiency and effect of the injection molding device for producing speaker housings.

[0015] 2. This application reduces the mutual influence between the heating and cooling mechanisms by setting two heat exchange plates and adjusting their positions, while maintaining their respective temperatures. This allows the injection molding device for speaker housing production to heat or cool quickly, thus improving the practicality of the injection molding device for speaker housing production. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the injection molding device for producing speaker housings according to this utility model;

[0017] Figure 2 This is a three-dimensional cross-sectional view of the injection molding device for producing speaker housings according to this utility model.

[0018] Figure 3 This is a three-dimensional cross-sectional view of the base of an injection molding device for producing speaker housings according to this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the heating mechanism of an injection molding device for producing speaker housings according to this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the heat exchange plate of an injection molding device for producing speaker housings according to this utility model;

[0021] Figure 6 This is a three-dimensional cross-sectional view of the heat exchange plate of an injection molding device for producing speaker housings according to this utility model. Detailed Implementation

[0022] 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.

[0023] Example: Figure 1 - Figure 6As shown, this utility model provides a technical solution for an injection molding device for producing speaker housings, including a base 1, a mold base 2 on the upper part of the base 1, a through heat exchange cavity 3 on one side of the mold base 2, two heat exchange plates 4 fixedly arranged in the heat exchange cavity 3, heat exchange pipes 5 arranged in a spiral arrangement formed in the heat exchange plates 4, a heating mechanism 6 for conveying hot liquid and cold liquid to the two heat exchange pipes 5 respectively, and a cooling mechanism 7 on the upper part of the base 1, a driving mechanism for driving the heat exchange plates 4 to slide in the heat exchange cavity 3, a support frame fixedly arranged on the upper part of the mold base 2, an upper template slidingly arranged on the support frame, the upper template facing directly above the mold base 2, a hydraulic cylinder installed on the support frame, and the piston rod of the hydraulic cylinder fixed to the upper part of the upper template.

[0024] like Figure 5 and Figure 6 As shown, the heat exchange plate 4 includes a U-shaped heat-conducting plate 401, a U-shaped heat insulation plate 402 is fixedly sleeved on the outside of the U-shaped heat-conducting plate 401, and the heat exchange pipe 5 is formed inside the U-shaped heat-conducting plate 401.

[0025] like Figure 1 - Figure 3 As shown, a mold groove 8 is formed on the upper part of the mold base 2. A heat-conducting baffle is provided between the bottom of the mold groove 8 and the top wall of the heat exchange chamber 3. An injection hole and an vent hole are formed on one side of the mold groove 8.

[0026] like Figure 1 and Figure 4 As shown, the heating mechanism 6 includes a heating water tank 601 and a first water pump 602 installed on the upper part of the base 1. Heating rods 603 and power supply mechanism 604 are respectively installed on the inner and outer sides of the heating water tank 601. The power supply mechanism 604 is electrically connected to the heating rods 603. The water outlet of the heating water tank 601, the water inlet and outlet of the first water pump 602, the two ends of the heat exchange pipe 5 on the right side, and the water inlet of the heating water tank 601 are all fixedly connected through the first guide pipe.

[0027] like Figure 1 As shown, the refrigeration mechanism 7 includes a water storage tank 701, a second water pump 702, and a chiller 703 installed on the upper part of the base 1. The water outlet of the water storage tank 701, the water inlet and outlet of the second water pump 702, the water inlet and outlet of the chiller 703, the two ends of the left heat exchange pipe 5, and the water inlet of the water storage tank 701 are all fixedly connected through a second guide pipe. The upper parts of the water storage tank 701 and the heating water tank 601 are both fixedly connected to a water inlet pipe, and the top of the water inlet pipe is threaded with a sealing cover. The water storage tank 701 and the heating water tank 601 are both fixedly connected to a drain pipe on one side, and a switch valve is provided on the drain pipe. The upper parts of the water storage tank 701 and the heating water tank 601 are both provided with an exhaust valve. The first guide pipe and the second guide pipe are both made of high temperature resistant and heat-insulating flexible hose material.

[0028] like Figure 2 and Figure 3 As shown, an installation groove is formed on the bottom wall inside the heat exchange chamber 3. The sliding drive mechanism includes a cylinder 10 installed on the inner wall of the installation groove. The piston rod end of the cylinder 10 is fixedly connected to the bottom of the heat exchange plate 4.

[0029] like Figure 1 - Figure 3 As shown, the mold base 2 is fixedly connected to the sealing cover plate 9 at both ends of the heat exchange cavity 3, and the upper part of the heat exchange plate 4 is in contact with the bottom of the sealing cover plate 9.

[0030] Specifically, the power supply mechanism 604, the first water pump 602, the cooler 703, and the second water pump 702 are all electrically connected to the power supply.

[0031] Working principle: The mold base 2 and the upper template are used to injection mold the speaker shell product. At this time, the heat exchange plate 4 located on the heating mechanism 6 slides into the cavity of the heat exchange chamber 3, while another heat exchange plate 4 is located at the bottom of the corresponding sealing cover plate 9. The power supply mechanism 604 and the heating rod 603 are used to heat the liquid stored in the heating water tank 601. After heating, the hot water is transported from the first guide pipe to the corresponding heat exchange pipe 5 through the first water pump 602. The heat conduction effect of the U-shaped heat conduction plate 401 is used to exchange heat and cold in the cavity of the mold groove 8, thereby heating the material in the mold groove 8 and preventing the material from cooling down prematurely. The hot water in the heat exchange pipe 5 will flow back to the heating water tank 601 through the first guide pipe for reheating, thus completing the water circulation.

[0032] After the material injection is completed, the injection molded part needs to be cooled. At this time, the cylinder 10 drives the two heat exchange plates 4 to slide. At this time, the heat exchange plate 4 located on the refrigeration mechanism 7 slides into the cavity of the heat exchange chamber 3, while the other heat exchange plate 4 is located at the bottom of the corresponding sealing cover plate 9. The second water pump 702 is used to transport the cooling water in the water storage tank 701 to the corresponding heat exchange pipe 5. The heat conduction effect of the U-shaped heat conduction plate 401 is used to transfer the heat in the mold groove 8 to the U-shaped heat conduction plate 401 and exchange heat with the U-shaped heat conduction plate 401, thereby achieving the effect of cooling the U-shaped heat conduction plate 401 and the cavity of the mold groove 8. The cooling water that has completed the heat exchange is transported to the refrigerator 703 through the second guide pipe and cooled by the refrigerator 703. The cooled water flows back to the water storage tank 701 to complete the water circulation.

[0033] Adjusting the positions of the two heat exchange plates 4 can preserve the temperature of the heat exchange plates 4, thus reducing the mutual influence between them and improving their performance and heating / cooling efficiency.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An injection molding apparatus for producing speaker housings, comprising a base (1), wherein a mold base (2) is disposed on the upper part of the base (1), characterized in that: The mold base (2) has a through heat exchange cavity (3) on one side. Two heat exchange plates (4) are slidably arranged in the heat exchange cavity (3) and fixedly arranged in each other. Heat exchange pipes (5) are formed in the heat exchange plates (4) and arranged in a spiral pattern. The upper part of the base (1) is provided with a heating mechanism (6) for conveying hot liquid and cold liquid to the two heat exchange pipes (5) respectively, and a cooling mechanism (7). The mold base (2) is provided with a driving mechanism for driving the heat exchange plates (4) to slide in the heat exchange cavity (3).

2. The injection molding device for producing speaker housings according to claim 1, characterized in that: The heat exchange plate (4) includes a U-shaped heat-conducting plate (401), and a U-shaped heat insulation plate (402) is fixedly sleeved on the outside of the U-shaped heat-conducting plate (401). The heat exchange pipe (5) is formed inside the U-shaped heat-conducting plate (401).

3. The injection molding device for producing speaker housings according to claim 1, characterized in that: The upper part of the mold base (2) is formed with a mold groove (8), and a heat-conducting baffle is provided between the bottom of the mold groove (8) and the top wall of the heat exchange cavity (3).

4. The injection molding device for producing speaker housings according to claim 3, characterized in that: The heating mechanism (6) includes a heating water tank (601) and a first water pump (602) installed on the upper part of the base (1). Heating rods (603) and power supply mechanisms (604) are respectively installed on the inner and outer sides of the heating water tank (601). The power supply mechanism (604) is electrically connected to the heating rods (603). The water outlet of the heating water tank (601), the water inlet and outlet of the first water pump (602), the two ends of the right heat exchange pipe (5), and the water inlet of the heating water tank (601) are all fixedly connected through the first guide pipe.

5. The injection molding device for producing speaker housings according to claim 1, characterized in that: The refrigeration mechanism (7) includes a water storage tank (701), a second water pump (702), and a cooler (703) installed on the upper part of the base (1). The water outlet of the water storage tank (701), the water inlet and outlet of the second water pump (702), the water inlet and outlet of the cooler (703), the two ends of the left heat exchange pipe (5), and the water inlet of the water storage tank (701) are all fixedly connected through a second guide pipe.

6. The injection molding apparatus for producing speaker housings according to claim 1, characterized in that: An installation groove is formed on the bottom wall inside the heat exchange chamber (3). The sliding drive mechanism includes a cylinder (10) installed on the inner wall of the installation groove. The piston rod end of the cylinder (10) is fixedly connected to the bottom of the heat exchange plate (4).

7. The injection molding apparatus for producing speaker housings according to claim 6, characterized in that: The mold base (2) is fixedly connected to the sealing cover plate (9) at both ends of the heat exchange cavity (3), and the upper part of the heat exchange plate (4) is in contact with the bottom of the sealing cover plate (9).

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