Efficient cooling demolding device for automobile injection molding part

Abstract

The utility model discloses an efficient cooling demoulding device for an automobile injection molding part in the technical field of demoulding devices, which comprises a concave mould, a back plate is arranged on one side of the concave mould, a plurality of metal heat conduction strips are fixedly connected with one side of the back plate, a groove part for placing the metal heat conduction strips is arranged on the concave mould, and the metal heat conduction strips are fixedly connected with the back plate. A water return pipe is arranged on one side of the back plate and connected with a water inlet pipe through a connecting bent pipe, and the vertical section of the connecting bent pipe is embedded in the metal heat conduction strip. By arranging the metal heat conduction strips and connecting the vertical sections of the bent pipes in an embedded mode, efficient heat exchange between the cooling medium and the surface of the mold is achieved, in the injection molding process, the cooling medium and the semiconductor refrigeration device are in synergistic effect, the overall performance of the cooling system is further improved, and the technical effects of energy conservation, high efficiency and stable quality are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a demoulding device technical field, especially a kind of high-efficiency cooling demoulding device for automobile injection molding part. BACKGROUND

[0002] With the rapid development of automobile industry, the production efficiency and quality requirements of automobile parts are continuously improved, and injection molding technology is widely used in automobile parts manufacturing due to its high efficiency and precision. Cooling and demolding are the key links to determine product quality and production efficiency in the injection molding process. Traditional injection mold usually adopts natural cooling or simple water cooling mode, with the progress of technology, gradually develops into multi-channel cooling system and efficient cooling structure based on heat-conducting material. For example, existing cooling technology includes embedded cooling pipeline design, heat pipe cooling technology and cooling scheme based on phase change material. These technologies improve the cooling efficiency to some extent, but also put forward higher requirements on the design complexity and manufacturing cost of mold. At the same time, the design of demolding device also gradually develops towards automation, and hydraulic drive and pneumatic auxiliary demolding technology gradually replaces traditional manual demolding method, further improves production efficiency. However, although the existing technology has made remarkable progress in cooling and demolding field, there are still many problems to be solved.

[0003] The main deficiencies of the prior art are reflected in the following aspects: first, the cooling efficiency of traditional cooling system is limited by the flow path and heat exchange area of cooling medium, especially in the production of complex shape injection molding parts, it is difficult to achieve uniform cooling, resulting in stress concentration, warping deformation and other problems on product surface; second, the energy consumption of existing cooling device is high, especially when the cooling system needs to maintain low temperature environment for a long time, energy waste problem is particularly prominent; in addition, although part of high-end cooling technology can improve cooling efficiency, its high cost and complex maintenance requirements limit its popularization in small and medium-sized enterprises. At the same time, the existing demolding device is often designed independently with cooling system, lacks collaborative optimization, leading to the extension of overall production cycle and affecting production efficiency. Especially in the production of automobile injection molding parts, due to the large size and complex structure of injection molding parts, how to realize rapid cooling and efficient demolding becomes a big challenge in the industry. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a high -efficient cooling demoulding device for automobile injection moulded part, including female die, the one side of female die is installed with backplate, a plurality of metal heat conduction strips are fixedly connected with the one side of backplate, the recessed groove part for metal heat conduction strip placement is seted up on female die, the one side of backplate is equipped with return pipe, the return pipe is connected with inlet pipe through connecting elbow, the vertical section of connecting elbow is embedded in the inside of metal heat conduction strip, the inlet pipe is connected with water pump through first hose, the lower part of water pump is connected with water tank, the water tank is installed with semiconductor refrigeration device on.

[0005] The semiconductor refrigeration device includes a refrigeration sheet, a notch is formed in the right side wall of the water tank for placing the refrigeration sheet, first and second heat dissipation aluminum sheets are installed on both sides of the refrigeration sheet, and a fan is installed on the second heat dissipation aluminum sheet.

[0006] The front side of the water tank is provided with an observation window and a switch, the upper part of the water tank is provided with a cover, and the top of the female die is provided with an inlet.

[0007] The return pipe is connected to the water tank through a second hose, and the female die is welded with a connecting lug.

[0008] The one side of the backplate is provided with a movable plate, and the one side of the movable plate is welded with a demolding rod.

[0009] The one side of the movable plate is provided with a hydraulic cylinder, the piston rod of the hydraulic cylinder is fixedly connected with the movable plate, and the hydraulic cylinder is fixedly connected with a mounting plate.

[0010] Compared with the prior art, the utility model has the beneficial effects that by setting the metal heat conduction strip and embedding the vertical section of the connecting elbow, efficient heat exchange between the cooling medium and the surface of the mold is realized, and the cooling efficiency of the mold directly determines the production cycle and product quality during the injection molding process. By installing the backplate on one side of the female die and fixedly connecting a plurality of metal heat conduction strips on the backplate, and embedding the vertical section of the connecting elbow in the metal heat conduction strip, an efficient heat transfer structure is formed. At the same time, the semiconductor refrigeration device cooperates to further improve the overall performance of the cooling system, achieving the technical effects of energy saving, high efficiency, and stable quality. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the utility model, and those skilled in the art can obtain other drawings according to the provided drawings without creating labor.

[0012] Figure 1It is the whole structure schematic view in the utility model.

[0013] Figure 2 It is the front side structure schematic view in the utility model.

[0014] Figure 3 It is the semiconductor refrigeration plant structure schematic view in the utility model.

[0015] Figure 4 It is the metal heat conduction strip structure schematic view in the utility model.

[0016] Figure 5 It is the connecting elbow structure schematic view in the utility model.

[0017] Figure 6 It is the vertical section structure schematic view in the utility model.

[0018] In the drawing: 1, recess mold;2, connecting lug;3, back plate;4, demolding rod;5, metal heat conduction strip;6, second hose;7, hydraulic cylinder;8, mounting plate;9, semiconductor refrigeration plant;91, fan;92, second heat dissipation aluminum sheet;93, refrigeration sheet;94, first heat dissipation aluminum sheet;10, first hose;11, water pump;12, water tank;13, feed inlet;14, return water pipe;15, connecting elbow;151, vertical section;16, cover;17, movable plate;18, water inlet pipe;19, recessed groove part. Specific implementation

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts are within the protection scope of the utility model.

[0020] As Figures 1-6 The utility model discloses a high -efficient cooling demoulding device for automobile injection molding piece, including recess mold 1, recess mold 1 one side is installed with back plate 3, back plate 3 is used to install on injection molding machine, and back plate 3 one side is fixedly connected with a plurality of metal heat conduction strips 5, and the inside of metal heat conduction strip 5 is used to install the vertical section 151 of connecting elbow 15, and makes cooling water pass through.

[0021] The recessed die 1 is provided with a recessed part 19 for placing the metal heat-conducting strip 5, the metal heat-conducting strip 5 is closely combined with the recessed part 19, so that heat can be conducted and cooled, one side of the back plate 3 is provided with a return water pipe 14, the return water pipe 14 is connected with the water inlet pipe 18 through the connecting elbow pipe 15, the vertical section 151 of the connecting elbow pipe 15 is embedded in the inside of the metal heat-conducting strip 5, the water inlet pipe 18 is connected with the water pump 11 through the first hose 10, the lower part of the water pump 11 is connected with the water tank 12, the front side of the water tank 12 is provided with an observation window and a switch, the upper part of the water tank 12 is provided with a cover 16, the top of the recessed die 1 is provided with a feeding port 13 for injection molding.

[0022] The water tank 12 is provided with a semiconductor refrigeration device 9, the semiconductor refrigeration device 9 comprises a refrigeration sheet 93, the cold end of the refrigeration sheet 93 is in contact with the cooling water in the water tank 12 to play a refrigeration role, the right side wall of the water tank 12 is provided with a notched part for placing the refrigeration sheet 93, the two sides of the refrigeration sheet 93 are provided with a first heat-dissipating aluminum sheet 94 and a second heat-dissipating aluminum sheet 92, the second heat-dissipating aluminum sheet 92 is provided with a fan 91 for dissipating heat from the hot end of the refrigeration sheet 93.

[0023] The return water pipe 14 is connected with the water tank 12 through the second hose 6, the recessed die 1 is welded with a connecting lug 2, the back plate 3 is provided with a mounting hole, and the back plate 3 and the recessed die are connected through bolts.

[0024] One side of the back plate 3 is provided with a movable plate 17, one side of the movable plate 17 is welded with an ejection rod 4, one side of the movable plate 17 is provided with a hydraulic cylinder 7, the piston rod of the hydraulic cylinder 7 is used to drive the movable plate 17 and the ejection rod 4 to move, so that the ejection rod 4 penetrates the recessed die 1 to perform ejection, the piston rod of the hydraulic cylinder 7 is fixedly connected with the movable plate 17, the hydraulic cylinder 7 is fixedly connected with a mounting plate 8 for being connected to a fixed machine table.

[0025] Working principle: after the injection molding is completed, the recessed die 1 contains the plastic product which is just injected and still in a high temperature state. At this time, the water pump 11 is started, and the cooling medium in the water tank 12 is pumped into the water inlet pipe 18 through the first hose 10. The cooling medium then enters the vertical section 151 of the connecting elbow pipe 15, which is embedded in the inside of the metal heat-conducting strip 5. Because the metal heat-conducting strip 5 has excellent heat-conducting performance, they can quickly absorb heat from the recessed die 1 and the injection molded part therein, and transfer it to the cooling medium flowing through. After the cooling medium absorbs heat, it returns to the water tank 12 through the return water pipe 14, forming a closed cycle.

[0026] To ensure that the cooling medium is maintained at a lower temperature, the water tank 12 is provided with a semiconductor refrigeration device 9. The device includes a refrigeration sheet 93, a first heat dissipation aluminum sheet 94 and a second heat dissipation aluminum sheet 92. The refrigeration sheet 93 cools one side and dissipates heat on the other side, wherein the cooling side directly acts on the cooling medium in the water tank 12 through the first heat dissipation aluminum sheet 94, and the heat dissipation side is dissipated through the second heat dissipation aluminum sheet 92. In particular, the fan 91 installed on the second heat dissipation aluminum sheet 92 accelerates the dissipation of heat, ensuring the refrigeration efficiency.

[0027] The observation window provided on the front side of the water tank 12 allows the operator to monitor the state of the cooling medium in real time, such as the liquid level, color change, etc., so as to replenish or replace in time. At the same time, the design of the switch facilitates the operation control of the equipment. In addition, the upper part of the water tank 12 is provided with a cover 16, which is convenient for water replenishment and maintenance.

[0028] After cooling is completed, the hydraulic cylinder 7 is started, and the piston rod pushes the movable plate 17, and then drives the demolding rod 4 welded thereon to act, realizing automatic demolding of the injection molded part. This automatic demolding mode not only improves the production efficiency, but also reduces the risk of product damage caused by manual demolding.

[0029] The above description of the embodiments is only used to help understand the method of the utility model and its core idea. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A high efficiency cooling and demolding device for automotive injection molded parts comprising a female mold (1), characterized in that: One side of the concave die (1) is provided with a back plate (3), one side of the back plate (3) is fixedly connected with a plurality of metal heat conduction strips (5), the concave die (1) is provided with a groove part (19) for placing the metal heat conduction strip (5), one side of the back plate (3) is provided with a backwater pipe (14), the backwater pipe (14) is connected with a water inlet pipe (18) through a connecting elbow pipe (15), the vertical section (151) of the connecting elbow pipe (15) is embedded in the inside of the metal heat conduction strip (5), the water inlet pipe (18) is connected with a water pump (11) through a first hose (10), the lower part of the water pump (11) is connected with a water tank (12), the water tank (12) is provided with a semiconductor refrigeration device (9).

2. A high efficiency cooling and demolding device for injection molded parts of automobiles as claimed in claim 1 wherein: The semiconductor refrigeration device (9) comprises a refrigeration sheet (93), the right side wall of the water tank (12) is provided with a notch part for placing the refrigeration sheet (93), the two sides of the refrigeration sheet (93) are provided with a first heat dissipation aluminum sheet (94) and a second heat dissipation aluminum sheet (92), the second heat dissipation aluminum sheet (92) is provided with a fan (91).

3. A high efficiency cooling and demolding device for injection molded parts of automobiles as claimed in claim 1 wherein: The front side of the water tank (12) is provided with an observation window and a switch, the upper part of the water tank (12) is provided with a cover (16), the top of the concave die (1) is provided with a feeding port (13).

4. A high efficiency cooling and demolding device for injection molded parts of an automobile as claimed in claim 1, wherein: The backwater pipe (14) is connected with the water tank (12) through a second hose (6), the concave die (1) is welded with a connecting lug (2).

5. A high efficiency cooling and demolding device for injection molded parts of automobiles as claimed in claim 1 wherein: One side of the back plate (3) is provided with a movable plate (17), one side of the movable plate (17) is welded with an ejection rod (4).

6. A high efficiency cooling and demolding device for injection molded parts of an automobile as claimed in claim 5 wherein: One side of the movable plate (17) is provided with a hydraulic cylinder (7), the piston rod of the hydraulic cylinder (7) is fixedly connected with the movable plate (17), the hydraulic cylinder (7) is fixedly connected with a mounting plate (8).

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