Automobile plastic part injection mold convenient to demold

Abstract

The utility model discloses an automobile plastic part injection mold convenient for demolding in the technical field of mold demolding, which comprises a bottom shell, a bracket fixedly connected to the bottom shell, a hydraulic rod mounted on the bracket, molds mounted on both the bottom shell and the hydraulic rod, a rack fixedly connected to the hydraulic rod, a moving mechanism arranged in the bottom shell, a gear mounted on the moving mechanism, and a gear mounted on the gear. A wedge-shaped block assembly is arranged in the bottom shell, one end of the moving mechanism is located on the wedge-shaped block assembly, a push rod is arranged on the wedge-shaped block assembly, the push rod is connected into the mold in a sliding mode, a push block is installed at one end of the push rod, and a liquid supply mechanism is arranged in the bottom shell, so that the demolding efficiency of equipment is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold demoulding, in particular to an injection mold for automobile plastic parts which is convenient for demoulding. Background Art

[0002] Injection molds are tools for producing plastic products and also tools for giving plastic products complete structures and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. Injection molds are widely used in practical applications, such as an injection molding mold for automobile central control plastic parts. However, common injection molds are not easy to demold, because in actual production, due to the established viscosity of the injection molding raw materials, it is easy to stick to the mold after solidification, making demolding very inconvenient and easily causing damage to the product during demolding. , thus affecting the stability of use. To solve the above problem, a technical solution is disclosed in Patent No.: CN201920834403.4. However, this technical solution still has some problems when used. In this technical solution, the process of pushing up the sealing extrusion block is to manually rotate the threaded rod to cooperate with the wedge block, and then push the material out of the mold. However, this operation will require manual control for each demolding, resulting in poor efficiency of the equipment at work. At the same time, after each demolding is completed, the release agent needs to be manually applied, which affects the overall practicality and ease of use of the equipment.

[0003] Based on this, the utility model designs an automobile plastic part injection mold with convenient demoulding to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an injection mold for automobile plastic parts which is convenient for demoulding, so as to solve the problem that the equipment proposed in the above background technology has low efficiency during operation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A convenient demoulding automobile plastic part injection mold comprises a bottom shell, a bracket is fixedly connected to the bottom shell, a hydraulic rod is installed on the bracket, a mold is installed on both the bottom shell and the hydraulic rod, a rack is fixedly connected to the hydraulic rod, a moving mechanism is provided in the bottom shell, a gear is installed on the moving mechanism, the gear and the rack are movably meshed, a wedge block assembly is provided in the bottom shell, one end of the moving mechanism is located on the wedge block assembly, a push rod is provided on the wedge block assembly, the push rod is slidably connected in the mold, a push block is installed on one end of the push rod, and a liquid supply mechanism is provided in the bottom shell.

[0007] Preferably, the moving mechanism includes a rotating sleeve, a threaded rod and a limiting rod, the bottom shell is rotatably connected to the rotating sleeve, the threaded rod is threadedly connected to the rotating sleeve, a limiting rod is provided between the threaded rod and the bottom shell, and the gear is located on the rotating sleeve.

[0008] Preferably, the liquid supply mechanism includes a liquid storage tank, a pump, a fixed sleeve, a liquid supply cavity, a sliding rod, a through hole, a nozzle and a liquid injection tube. The liquid storage tank is installed in the bottom shell, and the pump is installed on the liquid storage tank. The bottom shell is fixedly connected with a fixed sleeve, and a liquid supply cavity is provided in the fixed sleeve. The pump and the liquid supply cavity are through-connected. The fixed sleeve is slidably connected with a sliding rod, and the sliding rod and the fixed sleeve are both provided with through holes. The two groups of through holes are movably connected. One end of the sliding rod is through-connected to the push block, and a plurality of nozzles are installed on the push block.

[0009] Preferably, the liquid storage tank is provided with a liquid injection pipe, and the liquid injection pipe is located outside the bottom shell.

[0010] Preferably, the push block is located at a recess of the mold, and a sealing layer is provided between the push block and the mold.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model controls the hydraulic rod to descend, and the rack gear is descended at this time. When the rack gear descends, the rack gear drives the gear to rotate. At this time, the gear controls the rotating sleeve to rotate, so that the threaded rod moves under the drive of the limit rod. At this time, the wedge block assembly moves away, and then the push block is stored in the mold. At the same time, the through hole between the fixed sleeve and the sliding rod is in a staggered state. When the two molds are closed, the material can be injected. When the material injection is completed, the hydraulic rod is lifted, and the rack gear moves up at this time. At the same time, the rack gear drives the gear to rotate, and the threaded rod moves toward the inside of the bottom shell, and then the wedge block assembly is controlled to push the push rod out, and then the push block pushes the formed material out of the mold, which is convenient for demoulding of the material and avoids the sticking of the material. The demoulding can be completed by coordinating the separation of the mold during demoulding, which can effectively improve the demoulding efficiency of the equipment and avoid the need for manual demoulding of the equipment during the demoulding process, thereby affecting the working efficiency of the equipment.

[0013] 2. When the equipment moves up for demoulding, the slide bar gradually slides in the fixed sleeve. When the slide bar moves to a certain position, the two through holes are connected. At this time, the pump drives the liquid in the liquid storage tank into the slide bar through the through hole, and at the same time enters the nozzle through the slide bar. That is, when the material is taken out, the nozzle sprays the demoulding agent on the mold, thereby ensuring the next demoulding efficiency of the equipment, preventing sticking during the molding process, and further improving the demoulding efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic diagram of the structure of the utility model from the left side perspective;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from the front side perspective;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from the front side perspective;

[0018] Figure 4 It is a schematic diagram of the sectional structure of the utility model from a partial front side perspective.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Bottom shell; 2. Bracket; 3. Hydraulic rod; 4. Rack; 5. Moving mechanism; 6. Rotating sleeve; 7. Threaded rod; 8. Limit rod; 9. Gear; 10. Wedge block assembly; 11. Push rod; 12. Push block; 13. Liquid supply mechanism; 14. Liquid storage tank; 15. Pump; 16. Fixed sleeve; 17. Liquid supply cavity; 18. Sliding rod; 19. Through hole; 20. Nozzle; 21. Liquid injection pipe; 22. Mold. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] The invention discloses an injection mold for automobile plastic parts with convenient demoulding, comprising a bottom shell 1, a bracket 2 being fixedly connected to the bottom shell 1, a hydraulic rod 3 being installed on the bracket 2, a mold 22 being installed on both the bottom shell 1 and the hydraulic rod 3, a rack 4 being fixedly connected to the hydraulic rod 3, a moving mechanism 5 being arranged in the bottom shell 1, a gear 9 being installed on the moving mechanism 5, the gear 9 and the rack 4 being movably meshed, a wedge block assembly 10 being arranged in the bottom shell 1, one end of the moving mechanism 5 being located on the wedge block assembly 10, a push rod 11 being arranged on the wedge block assembly 10, the push rod 11 being slidably connected in the mold 22, a push block 12 being installed on one end of the push rod 11, and a liquid supply mechanism 13 being arranged in the bottom shell 1.

[0024] Among them, the moving mechanism 5 includes a rotating sleeve 6, a threaded rod 7 and a limit rod 8. The rotating sleeve 6 is rotatably connected to the bottom shell 1, and the threaded rod 7 is connected to the inner thread of the rotating sleeve 6. A limit rod 8 is provided between the threaded rod 7 and the bottom shell 1, and the gear 9 is located on the rotating sleeve 6; it is convenient to cooperate with the movement of the mold 22, so that it forms an uninterrupted working state, thereby ensuring the working efficiency of the equipment.

[0025] Among them, the liquid supply mechanism 13 includes a liquid storage tank 14, a pump 15, a fixed sleeve 16, a liquid supply cavity 17, a slide rod 18, a through hole 19, a nozzle 20 and a liquid injection tube 21. The liquid storage tank 14 is installed in the bottom shell 1, and the pump 15 is installed on the liquid storage tank 14. The fixed sleeve 16 is fixedly connected to the bottom shell 1, and the liquid supply cavity 17 is opened in the fixed sleeve 16. The pump 15 and the liquid supply cavity 17 are connected through, and the slide rod 18 is slidably connected in the fixed sleeve 16. The slide rod 18 and the fixed sleeve 16 are both provided with through holes 19. The two groups of through holes 19 are movably connected. One end of the slide rod 18 is connected to the push block 12, and a plurality of nozzles 20 are installed on the push block 12; it is convenient to spray the release agent on the equipment, thereby improving the demoulding efficiency of the equipment.

[0026] The liquid storage box 14 is provided with a liquid injection pipe 21, and the liquid injection pipe 21 is located outside the bottom shell 1, so as to facilitate the replenishment of the release agent.

[0027] The push block 12 is located in the depression of the mold 22, and a sealing layer is provided between the push block 12 and the mold 22, which effectively increases the sealing performance of the equipment and prevents overflow during the injection molding process.

[0028] Working principle:

[0029] During operation, the hydraulic rod 3 is controlled to descend, and the rack 4 is lowered at this time. When the rack 4 descends, the rack 4 drives the gear 9 to rotate. At this time, the gear 9 controls the rotating sleeve 6 to rotate, so that the threaded rod 7 is moved under the drive of the limit rod 8. At this time, the wedge block assembly 10 moves away, and then the push block 12 is stored in the mold 22. At the same time, the through hole 19 between the fixed sleeve 16 and the slide rod 18 is in a staggered state. When the two molds 22 are closed, the material can be injected. After the material injection is completed, the hydraulic rod 3 is lifted. At this time, the rack 4 moves up. At the same time, the rack 4 drives the gear 9 to rotate, and the threaded rod 7 moves to the inside of the bottom shell 1, and then the wedge block assembly 10 is controlled to push the push rod 11 out, and then the push block 12 pushes the molded material out of the mold 22, which is convenient for demolding of the material. At the same time, the material can be prevented from sticking, and the demoulding can be completed by coordinating the separation of the mold 22 during demoulding, which can effectively improve the demoulding efficiency of the equipment and avoid the need for manual demoulding of the equipment during the demoulding process, thereby affecting the working efficiency of the equipment. When the equipment is moved up for demoulding, the slide bar 18 gradually slides in the fixed sleeve 16. When the slide bar 18 moves to a certain position, the two through holes 19 are connected. At this time, the pump 15 allows the liquid in the liquid storage tank 14 to enter the slide bar 18 through the through hole 19, and at the same time enters the nozzle 20 through the slide bar 18. That is, after the material is taken out, the nozzle 20 sprays the demoulding agent on the mold 22, thereby ensuring the next demoulding efficiency of the equipment, preventing sticking during the molding process, and further improving the demoulding efficiency of the equipment.

Claims

1. An injection mold for automobile plastic parts with convenient demoulding, comprising a bottom shell (1), a bracket (2) fixedly connected to the bottom shell (1), a hydraulic rod (3) mounted on the bracket (2), and a mold (22) mounted on both the bottom shell (1) and the hydraulic rod (3), characterized in that: A rack (4) is fixedly connected to the hydraulic rod (3), a moving mechanism (5) is provided in the bottom shell (1), a gear (9) is installed on the moving mechanism (5), the gear (9) and the rack (4) are movably engaged, a wedge block assembly (10) is provided in the bottom shell (1), one end of the moving mechanism (5) is located on the wedge block assembly (10), a push rod (11) is provided on the wedge block assembly (10), the push rod (11) is slidably connected in the mold (22), a push block (12) is installed at one end of the push rod (11), and a liquid supply mechanism (13) is provided in the bottom shell (1).

2. The easy-to-demold injection mold for automobile plastic parts according to claim 1, characterized in that: The moving mechanism (5) comprises a rotating sleeve (6), a threaded rod (7) and a limiting rod (8); the rotating sleeve (6) is rotatably connected to the bottom shell (1); the threaded rod (7) is internally threadedly connected to the rotating sleeve (6); a limiting rod (8) is provided between the threaded rod (7) and the bottom shell (1); and the gear (9) is located on the rotating sleeve (6).

3. The easy-to-demold automobile plastic injection mold according to claim 1, characterized in that: The liquid supply mechanism (13) comprises a liquid storage tank (14), a pump (15), a fixed sleeve (16), a liquid supply cavity (17), a slide rod (18), a through hole (19), a nozzle (20) and a liquid injection pipe (21). The liquid storage tank (14) is installed in the bottom shell (1), the pump (15) is installed on the liquid storage tank (14), the fixed sleeve (16) is fixedly connected to the bottom shell (1), the liquid supply cavity (17) is provided in the fixed sleeve (16), the pump (15) and the liquid supply cavity (17) are connected in a through manner, the slide rod (18) is slidably connected in the fixed sleeve (16), the slide rod (18) and the fixed sleeve (16) are both provided with a through hole (19), the two groups of through holes (19) are movably connected, one end of the slide rod (18) is connected in a through manner to the push block (12), and a plurality of nozzles (20) are installed on the push block (12).

4. The easy-to-demold automobile plastic injection mold according to claim 3, characterized in that: The liquid storage box (14) is provided with a liquid injection pipe (21), and the liquid injection pipe (21) is located outside the bottom shell (1).

5. The easy-to-demold injection mold for automobile plastic parts according to claim 1, characterized in that: The push block (12) is located at a recessed portion of the mold (22), and a sealing layer is provided between the push block (12) and the mold (22).

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