Special injection mold for windscreen wiper supporting frame

Abstract

The utility model discloses a special injection mold for a windscreen wiper support frame, which comprises a bottom plate and a demolding ejection mechanism, the demolding ejection mechanism is arranged on the bottom plate, the demolding ejection mechanism comprises a support shell, the support shell is arranged at the top of the bottom plate, two fixing rods and a connecting driving mechanism are arranged at the bottom of the inner wall of the support shell, and the connecting driving mechanism is arranged on the bottom of the inner wall of the support shell. The connecting driving mechanism is arranged on the bottom plate and comprises two vertical plates, and the two vertical plates are installed on the left side and the right side of the top of the bottom plate correspondingly. Through mutual cooperation of the supporting shell, the fixed rod, the movable plate, the elastic piece, the lower mold, the ejector rod, the ejector plate, the movable block, the check block, the positioning column, the adjusting plate and the positioning frame, an object in the lower mold can be rapidly demolded, the stability of the two molds during mold closing is guaranteed, the phenomenon of deviation during mold closing is avoided, and the mold closing efficiency is improved. Therefore, the influence on the quality of the processed windscreen wiper support frame is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a special injection mold for a wiper support frame. Background Art

[0002] Wipers are necessary components of vehicles and other motor vehicles. Injection molds are needed for the production and processing of wiper support frames. The principle of injection molds is to first inject the heated and melted material into the mold cavity under high pressure, and then cool and solidify to obtain a molded product.

[0003] According to the application number: CN202220357106.7, an injection mold for the lower cover of the wiper handle includes a mounting seat, the upper surface of which is fixedly connected to two guide rods, a first slider and a second slider are slidably connected to the two guide rods, an upper mold is fixedly connected between the two first sliders, a lower mold is fixedly connected between the two second sliders, and the bottom of the lower mold is fixedly connected to two symmetrically arranged L-shaped plates.

[0004] In the above case, the demoulding structure of the injection mold easily causes the two molds to shift when they are closed, thereby affecting the stability during closing, further affecting the quality of the object production and reducing the practicality. Utility Model Content

[0005] The utility model aims to provide a special injection mold for a wiper support frame to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a special injection mold for a wiper support frame, comprising:

[0007] Base plate;

[0008] A demoulding and ejecting mechanism, the demoulding and ejecting mechanism is arranged on the bottom plate, the demoulding and ejecting mechanism comprises a supporting shell, the supporting shell is installed on the top of the bottom plate, and two fixing rods are installed at the bottom of the inner wall of the supporting shell;

[0009] The connecting driving mechanism is arranged on the bottom plate, and the connecting driving mechanism comprises two vertical plates, and the vertical plates are respectively installed on the left and right sides of the top of the bottom plate.

[0010] Preferably, the top end of the fixing rod is fixedly connected to the top of the inner wall of the supporting shell, the surfaces of the two fixing rods are in sliding contact via a movable plate, and the surfaces of the fixing rods are sleeved with elastic members, which are made of springs.

[0011] Preferably, a lower mold is installed on the top of the support shell, and four push rods are installed on the top of the movable plate. The top ends of the push rods penetrate the support shell and the lower mold from bottom to top in sequence and extend into the mold cavity of the lower mold. The top ends of the four push rods are fixedly connected by the top plate.

[0012] Preferably, moving blocks are installed on both left and right sides of the top of the movable plate, the top of the moving block passes through the supporting shell and extends to the outside thereof, the top of the moving block is installed with a stopper, and the top of the stopper is installed with a positioning column.

[0013] Preferably, an adjustment plate is provided on the upper portion of the lower mold, a positioning frame is installed at the bottom of the adjustment plate and at the position corresponding to the positioning column, and the top of the positioning column passes through the positioning frame and the adjustment plate from bottom to top and extends to the outside of the adjustment plate.

[0014] Preferably, the tops of the two vertical plates are fixedly connected by a horizontal plate, two cylinders are installed at the bottom of the horizontal plate, and an upper mold used in conjunction with a lower mold is installed at the bottom of the adjustment plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model can realize rapid demoulding of the objects in the lower mold through the cooperation of the supporting shell, the fixing rod, the movable plate, the elastic part, the lower mold, the ejector rod, the ejector plate, the moving block, the stopper, the positioning column, the adjusting plate and the positioning frame, and can also ensure the stability of the two molds when they are molded together, avoid the phenomenon of offset when the molds are molded together, and thus avoid affecting the quality of the wiper support frame after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a structural cross-sectional view of the front view of the utility model;

[0019] Figure 3 This is a structural cross-sectional view of the support shell and the front view of the lower mold of the utility model.

[0020] In the figure: 1 bottom plate, 2 demoulding ejection mechanism, 21 support shell, 22 fixed rod, 23 movable plate, 24 elastic member, 25 lower mold, 26 ejector rod, 27 ejector plate, 28 moving block, 29 stopper, 200 positioning column, 210 adjustment plate, 211 positioning frame, 3 connecting drive mechanism, 31 vertical plate, 32 horizontal plate, 33 cylinder, 34 upper 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 in 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 1-3 A special injection mold for a wiper support frame includes: a bottom plate 1 and a demoulding and ejecting mechanism 2, the demoulding and ejecting mechanism 2 is arranged on the bottom plate 1, the demoulding and ejecting mechanism 2 includes a support shell 21, the support shell 21 is installed on the top of the bottom plate 1, the bottom of the inner wall of the support shell 21 is fixedly connected with two fixing rods 22, the top of the fixing rod 22 is fixedly connected with the top of the inner wall of the support shell 21, the surfaces of the two fixing rods 22 are in sliding contact through a movable plate 23, the surfaces of the fixing rods 22 are sleeved with elastic members 24, the elastic members 24 are made of springs, the top of the support shell 21 is fixedly connected with a lower mold 25, the top of the movable plate 23 is fixedly connected with four ejector rods 26, the tops of the ejector rods 26 pass through the support shell 21 and the lower mold from bottom to top in sequence. 25 and extends into the cavity of the lower mold 25, the top ends of the four ejector rods 26 are fixedly connected by a top plate 27, the surface of the top plate 27 contacts the inner wall of the cavity of the lower mold 25, the left and right sides of the top of the movable plate 23 are fixedly connected with moving blocks 28, the top of the moving block 28 passes through the support shell 21 and extends to the outside thereof, the top of the moving block 28 is fixedly connected with a stopper 29, the top of the stopper 29 is fixedly connected with a positioning column 200, an adjusting plate 210 is provided on the upper part of the lower mold 25, a positioning frame 211 is fixedly connected to the bottom of the adjusting plate 210 and the position corresponding to the positioning column 200, the top of the positioning column 200 passes through the positioning frame 211 and the adjusting plate 210 from bottom to top in sequence and extends to the outside of the adjusting plate 210.

[0023] Furthermore, a cooling chamber is provided inside the lower mold 25, and a water inlet pipe interconnected with the left side of the inner wall of the cooling chamber is fixedly connected, and a drainage pipe interconnected with the right side of the inner wall of the cooling chamber is fixedly connected, so that external cooling water enters the cooling chamber through the water inlet pipe and is then discharged through the drainage pipe, so that the cooling water absorbs the temperature of the injection molding raw material, so that the injection molding raw material can be quickly cooled, thereby improving the molding efficiency of the injection molding raw material.

[0024] Through the mutual cooperation of the supporting shell 21, the fixing rod 22, the movable plate 23, the elastic member 24, the lower mold 25, the push rod 26, the top plate 27, the moving block 28, the stop block 29, the positioning column 200, the adjustment plate 210 and the positioning frame 211, not only can the objects in the lower mold 25 be demolded quickly, but also the stability of the two molds when they are molded is guaranteed, and the offset phenomenon during the mold closing is avoided, thereby avoiding affecting the quality of the wiper support frame after processing.

[0025] The connecting driving mechanism 3 is arranged on the base plate 1, and the connecting driving mechanism 3 includes a vertical plate 31. There are two vertical plates 31 and they are respectively installed on the left and right sides of the top of the base plate 1. The tops of the two vertical plates 31 are fixedly connected by a horizontal plate 32. The bottom of the horizontal plate 32 is fixedly connected with two cylinders 33. The bottom end of the cylinder 33 is fixedly connected with the top of the adjustment plate 210. The bottom of the adjustment plate 210 is fixedly connected with an upper mold 34 used in conjunction with the lower mold 25.

[0026] Furthermore, an injection tube is installed on the top of the upper mold 34 and is interconnected with the upper mold 34. The top end of the injection tube passes through the adjustment plate 210 and extends to the outside thereof.

[0027] When in use, start the cylinder 33, the cylinder 33 drives the upper mold 34 to move downward through the adjusting plate 210, and the adjusting plate 210 drives the positioning frame 211 to move downward. When the positioning frame 211 and the stopper 29 come into contact, the positioning frame 211 drives the moving block 28 to move downward through the stopper 29, and the moving block 28 drives the movable plate 23 to move downward, so that the movable plate 23 squeezes the elastic member 24 to move, and the movable plate 23 drives the top plate 27 to move downward through the ejector rod 26. At this time, the upper mold 34 and the lower mold 25 contact each other, and then injection molding is performed into the mold cavity through the injection molding tube. After the wiper support frame model in the mold cavity is formed, the cylinder 33 drives the adjusting plate 210 and the upper mold 34 to move upward. When the positioning frame 211 and the stopper 29 are separated, the elastic member 24 drives the movable plate 23 to move upward through the restoring elastic force of the elastic member 24, and the movable plate 23 drives the top plate 27 to move upward through the ejector rod 26, and the top plate 27 ejects the model in the mold cavity of the lower mold 25.

[0028] To sum up: the special injection mold for the wiper support frame solves the problems raised in the above-mentioned background technology through the mutual cooperation of the support shell 21, the fixed rod 22, the movable plate 23, the elastic part 24, the lower mold 25, the push rod 26, the top plate 27, the moving block 28, the stop block 29, the positioning column 200, the adjustment plate 210 and the positioning frame 211.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special injection mold for a wiper support frame, characterized in that: include: Bottom plate (1); A demoulding and ejecting mechanism (2), the demoulding and ejecting mechanism (2) being arranged on the bottom plate (1), the demoulding and ejecting mechanism (2) comprising a supporting shell (21), the supporting shell (21) being mounted on the top of the bottom plate (1), and two fixing rods (22) being mounted at the bottom of the inner wall of the supporting shell (21); A connecting drive mechanism (3) is arranged on the bottom plate (1), and the connecting drive mechanism (3) comprises two vertical plates (31), and the vertical plates (31) are respectively installed on the left and right sides of the top of the bottom plate (1).

2. The special injection mold for the wiper support frame according to claim 1, characterized in that: The top end of the fixing rod (22) is fixedly connected to the top of the inner wall of the supporting shell (21), the surfaces of the two fixing rods (22) are in sliding contact via a movable plate (23), and the surfaces of the fixing rods (22) are sleeved with an elastic member (24), which is made of a spring.

3. The special injection mold for the wiper support frame according to claim 2, characterized in that: A lower mold (25) is installed on the top of the support shell (21), and four push rods (26) are installed on the top of the movable plate (23). The top ends of the push rods (26) penetrate the support shell (21) and the lower mold (25) in sequence from bottom to top and extend into the mold cavity of the lower mold (25). The top ends of the four push rods (26) are fixedly connected by a top plate (27).

4. The special injection mold for the wiper support frame according to claim 3, characterized in that: A moving block (28) is installed on both left and right sides of the top of the movable plate (23); the top of the moving block (28) penetrates the supporting shell (21) and extends to the outside thereof; a stopper (29) is installed on the top of the moving block (28); and a positioning column (200) is installed on the top of the stopper (29).

5. The special injection mold for the wiper support frame according to claim 4, characterized in that: An adjusting plate (210) is arranged on the upper part of the lower mold (25); a positioning frame (211) is installed at the bottom of the adjusting plate (210) and at a position corresponding to the positioning column (200); and the top end of the positioning column (200) passes through the positioning frame (211) and the adjusting plate (210) in sequence from bottom to top and extends to the outside of the adjusting plate (210).

6. The special injection mold for the wiper support frame according to claim 5, characterized in that: The tops of the two vertical plates (31) are fixedly connected via a horizontal plate (32), the bottom of the horizontal plate (32) is equipped with two cylinders (33), and the bottom of the adjustment plate (210) is equipped with an upper mold (34) used in conjunction with the lower mold (25).

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