Mold for producing special-shaped thin-wall injection molding product

By designing an injection mold with a connecting assembly, the mold moves back and forth with a motor drive to generate vibration to weaken the bonding force with the product, the adhesion problem during injection mold release is solved, and faster and complete removal is achieved The mold improves the quality of the product.

CN222511993UActive Publication Date: 2025-02-21NANJING TIANLU NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421826155.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-02-21
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

Existing injection molds are prone to adhesion between the product and the mold when demolding, resulting in strain, scratches or cracks on the surface of the product, affecting the appearance and quality of the product.

Method used

A mold including a processing table, a lower mold and a connecting assembly is designed. The connecting plate and a toothed system are driven by a motor, so that the lower mold moves back and forth with a left and right, causing shaking and vibration, thereby reducing the combination between the lower mold and the product. Strength to achieve faster and complete mold release.

Benefits of technology

Vibration reduces the bonding force between the mold and the product, and achieves faster and more complete mold release, avoids adhesion problems and improves the appearance and quality of the product.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molds, and discloses a mold for producing a special-shaped thin-wall injection product, which comprises a processing table, a lower mold I and a lower mold II are placed at the top of the processing table, a fixed seat I is fixed on the surface of the lower mold I, the fixed seat I is fixedly connected with the lower mold II through a bolt, and the lower mold II is fixedly connected with the lower mold II through a bolt. According to the mold for producing the special-shaped thin-wall injection molding product, through the linkage assembly, a starting motor, a circular plate and a circular rod, a linkage plate rotates in a reciprocating mode with a fixing rod as a supporting point, through clamping teeth, a tooth groove, a sliding rod and a connecting rod, a first lower mold body and a second lower mold body move in a left-and-right reciprocating mode, and therefore the special-shaped thin-wall injection molding product can be produced. The first lower mold and the second lower mold shake and vibrate, and the binding force between the first lower mold and the product and the binding force between the second lower mold and the product are weakened through vibration, so that faster and more complete demolding is achieved, and subsequent demolding is prevented from being affected by adhesion.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold for producing special-shaped thin-wall injection products. Background Art

[0002] Injection molding is a method of producing industrial products. Products are usually made of rubber or plastic. Injection molding can be divided into injection molding and die casting according to the processing method.

[0003] According to a publicly disclosed mold for producing special-shaped thin-wall injection products (publication number: CN208896398U), the above application uses a detachable fixed mold for injection stamping. When demolding, the first fixed mold and the second fixed mold can be disassembled to facilitate and quickly demolding, thereby improving work efficiency. Both the fixed mold and the movable mold can be easily disassembled and assembled, and different molds can be replaced according to product needs, which is suitable for processing different products. The first fixed mold and the second fixed mold are installed through a plug-in board and a slot, which is convenient for disassembly and assembly, and is convenient for quick demolding. The first fixed mold and the second fixed mold can be clamped by rotating the clamping plate and the clamping column to avoid leakage of injection molding raw materials, thereby improving product quality. The first fixed mold and the second fixed mold are fixed to the base through a mounting block, and the movable mold is slidably connected in the T-slot of the sliding plate through the sliding strip of the mounting plate, which is convenient for disassembly and assembly, and different molds can be conveniently replaced according to production needs. The outer surface of the handle is provided with a heat insulation sleeve to prevent burns, thereby improving safety in use.

[0004] However, in the above application, during demolding, the first fixed mold and the second fixed mold are directly separated. In actual operation, adhesion will occur between the product and the mold, which is affected by various factors, such as unreasonable mold temperature, insufficient demolding slope, mold surface roughness, etc. If direct demolding is adopted, the surface of the product may be stretched, scratched or cracked, affecting the appearance and quality of the product. Utility Model Content

[0005] The utility model aims to provide a mold for producing special-shaped thin-wall injection products to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a mold for producing special-shaped thin-wall injection molding products, comprising a processing table, a lower mold 1 and a lower mold 2 are placed on the top of the processing table, a fixing seat 1 is fixed on the surface of the lower mold 1, and the fixing seat 1 is fixedly connected to the lower mold 2 by bolts, and a linkage component is arranged inside the processing table, and the linkage component includes:

[0007] The motor is fixed on the inner wall of the processing table, and a circular plate is fixed on the surface of the output shaft of the motor, and a round rod is fixed on the side of the circular plate away from the motor. A fixing rod is fixed on the inner wall of the processing table, and the fixing rod penetrates a linkage plate, and the linkage plate is rotatably connected with the fixing rod. A through hole is provided on the surface of the linkage plate, and the round rod penetrates the through hole, and the surface of the round rod conflicts with the inner wall of the through hole. A latching tooth is fixed on the surface of the linkage plate, and a stabilizing rod is fixed on the inner wall of the processing table, and the stabilizing rod penetrates a sliding rod, and a tooth groove is provided at the bottom of the sliding rod, and the tooth groove is meshed with the latching tooth. A connecting rod is fixed on the top of the sliding rod, and a limiting hole is provided on the top of the processing table, and the top of the connecting rod penetrates the limiting hole, and the connecting rod is fitted with the inner wall of the limiting hole. When the motor is turned on, the linkage plate is reciprocated with the fixing rod as a fulcrum through the circular plate and the round rod, and the latching tooth drives the tooth groove, the sliding rod, the connecting rod, the lower mold one, and the lower mold two to move back and forth left and right, so that the lower mold one and the lower mold two shake and vibrate.

[0008] Preferably, a mounting hole is provided on the top of the connecting rod to facilitate bolt fixing with the second fixing seat.

[0009] Preferably, a fixing seat 2 is fixed on the surface of the lower mold 1 and the lower mold 2, and the fixing seat 2 is connected to the mounting hole of the connecting rod by bolts to facilitate installation.

[0010] Preferably, a support rod is fixed to the top of the processing table, a top plate is fixed to the top of the support rod, a cylinder is fixed to the top of the top plate, the output end of the cylinder passes through the top plate, a stabilizing plate is fixed to the bottom of the output end of the cylinder, the stabilizing plate is penetrated by the support rod, and the stabilizing plate is slidably connected to the support rod, and an upper mold is fixed to the bottom of the stabilizing plate to facilitate injection molding.

[0011] Preferably, an insert plate is fixed on the surface of the lower mold 2, and a slot is provided on the side of the lower mold 1 close to the lower mold 2, so as to stabilize the lower mold 1 and the lower mold 2.

[0012] Preferably, two groups of connecting rods are provided, and the two groups of connecting rods are symmetrically arranged with the center line of the sliding rod as the symmetry axis, so as to improve the stability and synchronization of the movement of the lower mold 1 and the lower mold 2.

[0013] Compared with the prior art, the utility model provides a mold for producing special-shaped thin-wall injection molding products, which has the following beneficial effects:

[0014] 1. The mold for producing special-shaped thin-wall injection products starts the motor through the provided linkage assembly, and through the circular plate and the round rod, the linkage plate is reciprocated with the fixed rod as the fulcrum, and the lower mold 1 and the lower mold 2 are reciprocated left and right through the latch teeth, the tooth grooves, the sliding rod, and the connecting rod, and the lower mold 1 and the lower mold 2 are shaken and vibrated. The vibration weakens the bonding force between the lower mold 1 and the lower mold 2 and the product, thereby achieving faster and more complete demoulding, and avoiding adhesion that affects subsequent demoulding.

[0015] 2. The mold for producing special-shaped thin-wall injection molding products can be pre-fixed when installed between the lower mold 1 and the lower mold 2 through the provided plug plate and slot, so that personnel can conveniently fix the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 It is a partial front view structural schematic diagram of the utility model;

[0019] Figure 4 It is a front view structural diagram of lower mold 1, lower mold 2, insert plate and slot of the utility model.

[0020] In the figure: 1. processing table; 2. support rod; 3. top plate; 4. cylinder; 5. stabilizing plate; 6. upper mold; 7. lower mold 1; 8. lower mold 2; 9. linkage assembly; 90. motor; 91. round plate; 92. round rod; 93. fixing rod; 94. linkage plate; 95. through hole; 96. latching tooth; 97. stabilizing rod; 98. sliding rod; 99. tooth groove; 900. connecting rod; 901. limiting hole; 10. fixing seat 1; 11. fixing seat 2; 12. plug-in plate; 13. slot. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a mold for producing special-shaped thin-walled injection molding products, including a processing table 1, a lower mold 7 and a lower mold 8 are placed on the top of the processing table 1, a fixing seat 10 is fixed on the surface of the lower mold 7, and the fixing seat 10 is fixedly connected to the lower mold 8 by bolts, and a linkage component 9 is arranged inside the processing table 1, and the linkage component 9 includes: a motor 90, a circular plate 91, a round rod 92, a fixing rod 93, a linkage plate 94, a through hole 95, a latch tooth 96, a stabilizing rod 97, a sliding rod 98, a tooth groove 99, a connecting rod 900, and a limiting hole 901.

[0022] The motor 90 is fixed on the inner wall of the processing table 1. A circular plate 91 is fixed on the output shaft surface of the motor 90. A round rod 92 is fixed on the side of the circular plate 91 away from the motor 90. A fixing rod 93 is fixed on the inner wall of the processing table 1. The fixing rod 93 is penetrated by a linkage plate 94. The linkage plate 94 is rotatably connected with the fixing rod 93. A through hole 95 is provided on the surface of the linkage plate 94. The round rod 92 penetrates the through hole 95, and the surface of the round rod 92 contacts the inner wall of the through hole 95. A latch tooth 96 is fixed on the surface of the linkage plate 94. A stabilizing rod 97 is fixed on the inner wall of the processing table 1. The stabilizing rod 97 is penetrated by a sliding rod 98. A tooth groove 99 is provided at the bottom of the sliding rod 98. The tooth groove 99 meshes with the latch tooth 96. A connecting rod 96 is fixed on the top of the sliding rod 98. 00, a limiting hole 901 is provided on the top of the processing table 1, and the top of the connecting rod 900 passes through the limiting hole 901, and the connecting rod 900 is fitted with the inner wall of the limiting hole 901, and the motor 90 is turned on, and the circular plate 91 drives the round rod 92 to rotate, and the surface of the round rod 92 contacts the inner wall of the through hole 95, and the linkage plate 94 reciprocates with the fixed rod 93 as a fulcrum, and the latching tooth 96 drives the tooth groove 99, the sliding rod 98, the connecting rod 900, the lower mold 1 7, and the lower mold 2 8 to reciprocate left and right, so that the lower mold 1 7 and the lower mold 2 8 shake and vibrate, and the vibration weakens the bonding force between the lower mold 1 7 and the lower mold 2 8 and the product, thereby achieving faster and more complete demoulding, and avoiding adhesion affecting subsequent demoulding.

[0023] A mounting hole is provided at the top of the connecting rod 900, which is convenient for bolting with the fixing seat 2 11, and is convenient for installation and disassembly. The fixing seat 2 11 is fixed on the surface of the lower mold 1 7 and the lower mold 2 8, and the fixing seat 2 11 is connected to the mounting hole of the connecting rod 900 by bolts, which is convenient for stabilizing the lower mold 1 7, the lower mold 2 8 and the connecting rod 900.

[0024] A support rod 2 is fixed to the top of the processing table 1, a top plate 3 is fixed to the top of the support rod 2, a cylinder 4 is fixed to the top of the top plate 3, the output end of the cylinder 4 passes through the top plate 3, a stabilizing plate 5 is fixed to the bottom of the output end of the cylinder 4, the stabilizing plate 5 is penetrated by the support rod 2, and the stabilizing plate 5 is slidably connected to the support rod 2, an upper mold 6 is fixed to the bottom of the stabilizing plate 5, by turning on the cylinder 4, the stabilizing plate 5 drives the upper mold 6 to move downward, so that it can be combined with the lower mold 1 7 and the lower mold 2 8 for injection molding.

[0025] An insert plate 12 is fixed on the surface of the lower mold 2 8, and a slot 13 is provided on the side of the lower mold 1 7 close to the lower mold 2 8 to facilitate the stabilization of the lower mold 1 7 and the lower mold 2 8. Two groups of connecting rods 900 are provided, and the two groups of connecting rods 900 are symmetrically arranged with the center line of the slide bar 98 as the symmetry axis, thereby improving the stability and synchronization of the movement of the lower mold 1 7 and the lower mold 2 8.

[0026] When in use, insert the insert plate 12 into the slot 13, and use bolts to stabilize the lower mold 1 7 and the lower mold 2 8 with the fixing seat 10, and fix the fixing seat 2 11 and the lower mold 1 7 and the lower mold 2 8 with the connecting rod 900 with the bolts. During processing, by turning on the cylinder 4, the stabilizing plate 5 drives the upper mold 6 to move downward, so that it can be molded with the lower mold 1 7 and the lower mold 2 8. At this time, injection molding can be carried out. When demoulding is required, the motor 90 is turned on at this time, and the circular plate 91 drives the round rod 92 to rotate. The surface of the round rod 92 contacts the inner wall of the through hole 95, so that the linkage plate 94 is fixed with the fixing rod 93 The fulcrum is used for reciprocating rotation, so that the latch tooth 96 drives the tooth groove 99, the slide bar 98, the connecting rod 900, the lower mold 1 7 and the lower mold 2 8 to move back and forth left and right. Through the continuous operation of the motor 90, the lower mold 1 7 and the lower mold 2 8 shake and vibrate. The vibration weakens the bonding force between the lower mold 1 7 and the lower mold 2 8 and the product, thereby achieving faster and more complete demoulding and avoiding adhesion that affects subsequent demoulding. At this time, the personnel can remove the bolts of the fixing seat 10 and the fixing seat 2 11 to separate the lower mold 1 7 and the lower mold 2 8, and the product can be taken out.

[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A mold for producing a special-shaped thin-walled injection molded product, comprising a processing table (1), characterized in that: A lower mold 1 (7) and a lower mold 2 (8) are placed on the top of the processing table (1). A fixing seat 1 (10) is fixed on the surface of the lower mold 1 (7). The fixing seat 1 (10) is fixedly connected to the lower mold 2 (8) by bolts. A linkage assembly (9) is arranged inside the processing table (1). The linkage assembly (9) comprises: A motor (90), wherein the motor (90) is fixed on the inner wall of a processing table (1), a circular plate (91) is fixed on the surface of the output shaft of the motor (90), a round rod (92) is fixed on the side of the circular plate (91) away from the motor (90), a fixing rod (93) is fixed on the inner wall of the processing table (1), a linkage plate (94) is passed through the fixing rod (93), the linkage plate (94) is rotatably connected to the fixing rod (93), a through hole (95) is opened on the surface of the linkage plate (94), the round rod (92) passes through the through hole (95), and the surface of the round rod (92) is in contact with the through hole (9 5) The inner wall of the processing table (1) is in conflict with the inner wall, the surface of the linkage plate (94) is fixed with a latch tooth (96), the inner wall of the processing table (1) is fixed with a stabilizing rod (97), the stabilizing rod (97) is penetrated by a slide bar (98), the bottom of the slide bar (98) is provided with a tooth groove (99), the tooth groove (99) is meshed with the latch tooth (96), the top of the slide bar (98) is fixed with a connecting rod (900), the top of the processing table (1) is provided with a limiting hole (901), the top of the connecting rod (900) is penetrated by the limiting hole (901), and the connecting rod (900) is in contact with the inner wall of the limiting hole (901).

2. A mold for producing special-shaped thin-walled injection molded products according to claim 1, characterized in that: A mounting hole is provided on the top of the connecting rod (900).

3. A mold for producing special-shaped thin-walled injection molded products according to claim 2, characterized in that: A fixing seat 2 (11) is fixed on the surface of the lower mold 1 (7) and the lower mold 2 (8), and the fixing seat 2 (11) is connected to the mounting hole of the connecting rod (900) through bolts.

4. A mold for producing special-shaped thin-walled injection molded products according to claim 1, characterized in that: A support rod (2) is fixed on the top of the processing table (1), a top plate (3) is fixed on the top of the support rod (2), a cylinder (4) is fixed on the top of the top plate (3), the output end of the cylinder (4) passes through the top plate (3), a stabilizing plate (5) is fixed on the bottom of the output end of the cylinder (4), the stabilizing plate (5) is penetrated by the support rod (2), and the stabilizing plate (5) is slidably connected to the support rod (2), and an upper mold (6) is fixed on the bottom of the stabilizing plate (5).

5. The mold for producing special-shaped thin-walled injection molded products according to claim 1, characterized in that: A plug plate (12) is fixed on the surface of the lower mold 2 (8), and a slot (13) is provided on a side of the lower mold 1 (7) close to the lower mold 2 (8).

6. The mold for producing special-shaped thin-walled injection molded products according to claim 1, characterized in that: The connecting rods (900) are provided in two groups, and the two groups of connecting rods (900) are symmetrically arranged with the center line of the sliding rod (98) as the symmetry axis.

Citation Information

Patent Citations

  • The utility model discloses a mold for producing a special-shaped thin-wall injection molding product

    CN208896398U