Metal rubber coating mold structure for counteracting thermal expansion effect of metal piece
By using lower templates, sliders and spring structures in metal glue-encapsulated molds, the sliders slide and replenish when thermal expansion, and the spring provides reset during cooling, solving the problem of shrinkage gaps in contact with fixed die molds when colloids are cooled and contracted, ensuring that the colloid is tight Stick to contact to avoid gaps.
Patent Information
- Application Number
- CN202420837801.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-22
AI Technical Summary
During the process of wrapping metal parts, due to the different thermal expansion coefficients of the colloid and the metal parts, the colloid contacts the fixed mold when cooling and shrinking will have a shrinkage gap.
A metal glue-cover mold structure including lower template, slider, upper template and spring is designed. The slider is supplemented by sliding displacement when the metal part is thermally expanded. The spring provides reset assistance when cooling and shrinking, so that the colloid is always in close contact. Slider to avoid shrinking notches.
It effectively solves the problem of shrinkage gaps in contact with the fixed mold during cooling and shrinkage, ensures that the colloid is close to the contact slide, maintains a good contact surface, and avoids the occurrence of shrinkage gaps.
Smart Images
Figure CN222245657U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a metal rubber-coated mould structure for offsetting the thermal expansion effect of metal parts, belonging to the technical field of moulds. Background Art
[0002] For metal parts covered with rubber (China's patent announcement number is CN218966196U, inner side covered with rubber), due to the different thermal expansion coefficients of the colloid and the metal parts, when the colloid is cooled after hot pressing in the mold, the colloid contacts the fixed mold during cooling and shrinkage, resulting in shrinkage gaps. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a metal-coated mold structure for offsetting the thermal expansion effect of metal parts.
[0004] The utility model is realized through the following technical solutions.
[0005] The utility model provides a metal-coated mold structure for offsetting the thermal expansion of metal parts, comprising:
[0006] The space is formed to place the lower template, slider and upper template for metal parts to be encapsulated.
[0007] The invention comprises: a lower template, the lower template has a lower groove, a slider is installed in the lower groove of the lower template, an upper template is installed on the lower template, and a space for placing metal parts for rubber encapsulation is formed between the lower groove of the lower template, the slider and the upper template.
[0008] The upper template is mounted on the lower template via positioning pins.
[0009] The slide block is installed on the lower template through a spring; a slide groove is provided on the lower template, and the slide block is provided with a sliding body that is slidably matched with the slide groove of the lower template.
[0010] The lower template located outside the sliding block is detachably fixedly connected with a stopper, which abuts against a spring; the sliding block abuts against the stopper through the spring to obtain elastic displacement supplement.
[0011] A mounting mold opening is arranged between the mold surfaces of the upper mold plate and the lower mold plate.
[0012] The beneficial effects of the utility model are as follows: when the metal parts and the colloid are heated, they expand, and the slider is supplemented by sliding displacement through the spring. When the colloid cools and shrinks, the spring provides reset assistance so that the colloid is always in close contact with the slider for sliding displacement, so that the colloid is always in close contact with the slider without shrinkage gap, which solves the problem of shrinkage gap when the colloid contacts a fixed mold during cooling and shrinkage. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 It is a schematic diagram of the structure of the utility model when the upper template is not installed;
[0015] In the figure: 1-lower template; 11-slide groove; 2-slider; 3-upper template; 31-locating pin; 4-metal part; 5-stopper; 6-spring; 7-installation mold opening. DETAILED DESCRIPTION
[0016] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.
[0017] like Figure 1 to Figure 2 shown.
[0018] A metal overmolding mold structure for offsetting the thermal expansion of a metal part in the present application includes:
[0019] A lower template 1 is provided with a lower groove, a slider 2 is installed in the lower groove of the lower template 1, an upper template 3 is installed on the lower template 1, and a space is formed between the lower groove of the lower template 1, the slider 2 and the upper template 3 for placing a metal part 4 for rubber encapsulation. The upper template 3 is installed on the lower template 1 through a positioning pin 31.
[0020] The slider 2 is installed on the lower template 1 through a spring 6; a slide groove 11 is provided on the lower template 1, and the slider 2 is provided with a sliding body that slides with the slide groove of the lower template 1. A stopper 5 is detachably fixedly connected to the lower template 1 located outside the slider 2 through screws, and the stopper 5 resists the spring 6; the slider 2 resists the stopper 5 through the spring 6 to obtain elastic displacement supplement.
[0021] An installation mold opening 7 is provided between the mold surfaces of the upper mold plate 3 and the lower mold plate 1 to facilitate installation and disassembly at a later stage.
[0022] After the colloid is placed between the metal part 4 and the slider 2, the upper mold 3 and the lower mold 1 are closed for hot pressing. The metal part 4 and the colloid expand due to the heat, and the slider 2 slides and moves to compensate through the spring 6. When the colloid cools and shrinks, the spring 6 provides reset assistance to keep the colloid in close contact with the slider 2 for sliding displacement, so that the colloid always keeps in close contact with the slider 2 without shrinkage gap, which solves the problem of shrinkage gap when the colloid contacts the fixed mold during cooling and shrinkage.
Claims
1. A metal overmolding mold structure for offsetting the thermal expansion of metal parts, characterized in that: include: A lower template (1), a slider (2) and an upper template (3) are formed to form a space for placing a metal part (4) for rubber encapsulation; The lower template (1) has a lower groove, a slider (2) is installed in the lower groove of the lower template (1), an upper template (3) is installed on the lower template (1), and a space for placing a metal part (4) for rubber encapsulation is formed between the lower groove of the lower template (1), the slider (2) and the upper template (3); The slider (2) is mounted on the lower template (1) via a spring (6); a slide groove (11) is provided on the lower template (1), and the slider (2) is provided with a sliding body that is slidably matched with the slide groove of the lower template (1).
2. The metal overmolding mold structure for offsetting the thermal expansion of metal parts as claimed in claim 1, characterized in that: The upper template (3) is mounted on the lower template (1) via positioning pins (31).
3. The metal overmolding mold structure for offsetting the thermal expansion of metal parts as claimed in claim 1, characterized in that: A stopper (5) is detachably fixedly connected to the lower template (1) located outside the slider (2), and the stopper (5) abuts against a spring (6); the slider (2) abuts against the stopper (5) through the spring (6) to obtain elastic displacement supplement.
4. The metal overmolding mold structure for offsetting the thermal expansion of metal parts as claimed in claim 1, characterized in that: A mold mounting opening (7) is provided between the mold surfaces of the upper mold plate (3) and the lower mold plate (1).