Machining die for electronic product
By introducing three sets of core pulling slide structures into the mold, especially the cooperation of the oblique pulling slide and the limit sleeve, the problem of insufficient position accuracy during the mold opening and closing process is solved, and the high-precision appearance requirements and product consistency of the headphone shell are achieved.
Patent Information
- Application Number
- CN202422464982.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The existing mold structure cannot meet the high-precision appearance requirements of the headphone shell, resulting in insufficient product yield and consistency.
The structure of 3 sets of core pulling sliders is adopted, including an oblique pulling slider, a limit sleeve and a limit spring. By cooperating with the guide bumps and the guide grooves, the position accuracy of the oblique pulling slider during multiple mold openings and closings is ensured. Combined with the design of the limit groove and bumps, the mold closing accuracy and stability are improved.
Improve the yield and consistency of the product, avoid wire clamping, achieve precision molding effect, and ensure consistent appearance.
Smart Images
Figure CN223186913U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a processing mold for electronic products, belonging to the technical field of injection molds. Background Art
[0002] During the headphone production process, the headphone shells need to be injection molded. Injection molds are generally suitable for thermoplastic molding. Using the hot melt principle of thermoplastics, the molten plastic is injected into the mold cavity through an injection molding machine. After cooling and setting, the mold is opened and the plastic product is removed. Due to the high aesthetic requirements for headphones, existing mold structures cannot meet these high aesthetic requirements. Utility Model Content
[0003] The purpose of the utility model is to provide a processing mold for electronic products. While meeting the requirements for the precise appearance of the product after molding through three sets of core-pulling sliders, the processing mold for electronic products can improve the position accuracy of the oblique pulling sliders during multiple opening and closing processes, thereby improving the product yield and consistency.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a processing mold for electronic products, comprising: an upper mold plate installed with an upper mold core, a lower mold plate installed on a lower mold core, a bottom base plate arranged below the lower mold plate, and a first side-drawing slider and a second side-drawing slider arranged opposite to each other, the lower mold plate and the bottom base plate are connected by two support bars arranged at intervals, the first side-drawing slider and the second side-drawing slider are each slidably installed on the lower mold plate and can move closer to or away from each other in the horizontal direction, and the upper mold plate is equipped with two corresponding side-drawing sliders and the second side-drawing slider. The matching slider shovel base, the first side-drawing slider and the second side-drawing slider at their ends close to each other can be slidably embedded in the lower mold core, the upper surface of the lower mold core and the area between the first side-drawing slider and the second side-drawing slider are provided with a mounting through hole extending obliquely downward, an oblique-drawing slider is slidably mounted in the mounting through hole, when in the mold closing state, the end surface of the upper end of the oblique-drawing slider and the upper mold core, the lower mold core and the first side-drawing slider and the second side-drawing slider close to each other form a cavity for molding the product, and the upper end of the ejector pin can be embedded in the cavity;
[0005] The lower end of the inclined draw-out slide passes through a mounting through-hole and is slidably connected to an inclined draw-out slide seat that can slide in the horizontal direction. The inclined draw-out slide seat is provided with an inclined inclined draw-out slide groove at one end near the inclined draw-out slide, for the lower end of the inclined draw-out slide to be embedded in the inclined draw-out slide. The end of the inclined draw-out slide groove near the lower mold core is lower than the other end, and the inclined draw-out slide whose lower end surface is in sliding contact with the bottom surface of the inclined draw-out slide groove is matched with the side wall of the inclined draw-out slide groove by at least one set of guide protrusions and guide grooves. A limiting sleeve is installed on the lower template and below the inclined draw-out slide seat, and the lower end of a vertically extending limit spring is in contact with the lower end surface of the inclined draw-out slide groove. The bottom of the limit sleeve is connected, and the upper end of the limit spring is sleeved on the outside of a limit pin. The limit pin has a flange portion facing radially outward, and an inner convex portion cooperating with the flange portion is provided above the flange portion whose lower surface is in compression contact with the upper end surface of the limit spring and on the inner wall of the limit sleeve. The lower surface of the obliquely withdrawn slider seat is provided with two limit grooves arranged at intervals along its movement direction. When the upper end surface of the flange portion on the limit pin fits with the lower end surface of the inner convex portion on the inner wall of the limit sleeve, the upper end of the limit pin that can move in the vertical direction is embedded in any one of the limit grooves.
[0006] The further improved scheme in the above technical scheme is as follows:
[0007] 1. In the above scheme, each of the first side-drawing slider and the second side-drawing slider is provided with a protrusion on the end surface facing one end of the oblique-drawing slider and located on the outside of the cavity area. The oblique-drawing slider is provided with a through hole for two oppositely arranged protrusions to be embedded. During the mold closing process, the two protrusions close to each other are synchronously embedded in the through hole on the oblique-drawing slider.
[0008] 2. In the above solution, the cross-section of the limiting groove is triangular, and the upper end of the limiting groove is configured as a pointed cone.
[0009] 3. When in the mold closing state, the upper end of the limit pin is embedded in the limit groove away from the oblique withdrawal slider.
[0010] 4. In the above solution, the lower mold core, the first side-drawing slider, the second side-drawing slider and the oblique-drawing slider seat are each embedded and installed in the lower accommodating groove opened on the upper surface of the lower template.
[0011] 5. In the above solution, at least one set of mutually cooperating positioning protrusions and positioning grooves is provided between the first side-drawing slider and the second side-drawing slider. When in the mold closing state, the positioning protrusions are correspondingly embedded in the positioning grooves.
[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0013] The cam is secured to the bottom of the slide and is adapted to engage the slide seat, wherein the cam is secured to the bottom of the slide and is adapted to engage the slide seat, wherein the cam is secured to the bottom of the slide and is adapted to engage the slide seat. When the upper end surface of the flange portion on the limit pin fits with the lower end surface of the inner convex portion on the inner wall of the limit sleeve, the upper end of the limit pin which can be moved in the vertical direction can be embedded in any limit groove. While meeting the precise appearance requirements of the product after molding through three groups of core-pulling sliders, the position accuracy of the oblique-pulling slider in multiple mold opening and closing processes can be improved, thereby improving the product yield and consistency; furthermore, the first side-pulling slider and the second side-pulling slider are each provided with a protrusion on the end surface facing one end of the oblique-pulling slider and located on the outside of the cavity area, and the oblique-pulling slider is provided with a through hole for two relatively arranged protrusions to be embedded. During the mold closing process, two protrusions close to each other are synchronously embedded in the through hole on the oblique-pulling slider, thereby improving the position accuracy of the three core-pulling sliders in the mold closing, avoiding the relative movement of multiple core-pulling sliders during mold closing to form small tolerances and cause obvious clamping lines on the molded products, improving the stability of the step difference of the molded products, ensuring consistent and beautiful appearance, and achieving a precision molding effect with visible but intangible clamping lines. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Attachment Figure 1 This is a schematic diagram of the overall structure of the processing mold for the electronic product of the utility model;
[0015] Attachment Figure 2 for Figure 1 A schematic side cross-section diagram along the DD' direction;
[0016] Attachment Figure 3 This is the overall schematic diagram of the injection molding structure of the processing mold of the electronic product of this utility model
[0017] Attachment Figure 4 for Figure 2 A local enlarged schematic diagram of point A in the middle.
[0018] In the above drawings: 1. upper template; 2. lower template; 3. upper mold core; 31. injection channel; 4. lower mold core; 41. mounting through hole; 42. stop step surface; 51. first side pull-out slider; 52. second side pull-out slider; 53. positioning protrusion; 54. positioning groove; 6. slider shovel base; 7. oblique pull-out slider; 71. flange surface; 8. oblique pull-out slider seat; 81. oblique pull-out slide groove; 91. guide protrusion; 92. guide groove; 10. cavity; 11. bottom base plate; 12. support bar; 13. ejector plate; 131. ejector; 132. return needle spring; 133. return needle guide pin; 141. guide pin; 142. guide sleeve; 15. protrusion; 16. through hole; 17. limiting sleeve; 171. inner convex portion; 18. limiting spring; 19. limiting pin; 191. flange portion; 20. limiting groove. DETAILED DESCRIPTION
[0019] The present invention can be further understood through the following specific embodiments, but they are not intended to limit the present invention.
[0020] Example 1: A processing mold for electronic products, comprising: an upper template 1 equipped with an upper mold core 3, a lower template 2 equipped with a lower mold core 4, a bottom substrate 11 arranged below the lower template 2, and a first side-drawing slider 51 and a second side-drawing slider 52 arranged opposite to each other. The lower template 2 and the bottom substrate 11 are connected by two support bars 12 arranged at intervals. The first side-drawing slider 51 and the second side-drawing slider 52 can each be slidably installed on the lower template 2 and can move closer to or away from each other in the horizontal direction. The upper template 1 is equipped with two slider shovel bases 6 corresponding to the first side-drawing slider 51 and the second side-drawing slider 52. The first side-drawing slider 51 and the second side-drawing slider 52 are respectively installed on the lower template 2. The side-drawing slider 51 and the second side-drawing slider 52, at their ends close to each other, can be slidably embedded in the lower mold core 4. A mounting through-hole 41 extending obliquely downward is provided on the upper surface of the lower mold core 4 and in the area between the first side-drawing slider 51 and the second side-drawing slider 52. An oblique-drawing slider 7 can be slidably installed in this mounting through-hole 41. When in the mold closing state, a cavity 10 for molding a product is formed between the end surface of the upper end of the oblique-drawing slider 7 and the upper mold core 3, the lower mold core 4 and the first side-drawing slider 51 and the second side-drawing slider 52 close to each other. The upper end of the ejector pin 131 can be embedded in this cavity 10.
[0021] The lower end of the oblique pull-out slider 7 passes through the mounting through-hole 41 and is slidably connected to an oblique pull-out slider seat 8 that can slide in the horizontal direction. The oblique pull-out slider seat 8 is provided with an obliquely arranged oblique pull-out groove 81 at one end close to the oblique pull-out slider 7. The oblique pull-out groove 81 for the lower end of the oblique pull-out slider 7 to be embedded is lower than the other end near the lower mold core 4. The oblique pull-out slider 7 whose lower end surface is in sliding contact with the bottom surface of the oblique pull-out groove 81 is matched with the side wall of the oblique pull-out groove 81 by at least one group of guide protrusions 91 and guide grooves 92. A limiting sleeve 17 is installed on the lower mold plate 2 and below the oblique pull-out slider seat 8. The lower end of a vertically extending limiting spring 18 is engaged with the limiting sleeve 17 The bottom of the limit spring 18 is connected, the upper end of the limit spring 18 is sleeved on the outside of a limit pin 19, and the limit pin 19 has a radially outward flange portion 191. The lower surface of the flange portion 191 is in compression contact with the upper end surface of the limit spring 18 and is located above the inner wall of the limit sleeve 17. An inner convex portion 171 that cooperates with the flange portion 191 is provided. The lower surface of the obliquely withdrawn slider seat 8 is provided with two limit grooves 20 arranged at intervals along its movement direction. When the upper end surface of the flange portion 191 on the limit pin 19 is in contact with the lower end surface of the inner convex portion 171 on the inner wall of the limit sleeve 17, the upper end of the limit pin 19 that can move in the vertical direction is embedded in any one of the limit grooves 20.
[0022] The first side-drawing slider 51 and the second side-drawing slider 52 are each provided with a protrusion 15 on the end surface facing one end of the oblique-drawing slider 7 and located on the outside of the cavity 10 area. The oblique-drawing slider 7 is provided with a through hole 16 for two oppositely arranged protrusions 15 to be embedded. During the mold closing process, the two protrusions 15 close to each other are synchronously embedded in the through hole 16 on the oblique-drawing slider 7.
[0023] The cross section of the limiting groove 20 is triangular, and the upper end of the limiting groove 20 is configured to be tapered.
[0024] When in the mold closing state, the upper end of the limiting pin 19 is embedded in the limiting groove 20 away from the oblique withdrawal slide 7.
[0025] The lower mold core 4 , the first side-drawing slider 51 , the second side-drawing slider 52 and the oblique-drawing slider seat 8 are each embedded and installed in a lower accommodating groove opened on the upper surface of the lower mold plate 2 .
[0026] At least one set of mutually cooperating positioning protrusions 53 and positioning grooves 54 is provided between the first side-drawing slider 51 and the second side-drawing slider 52 . When in the mold closing state, the positioning protrusions 53 are correspondingly embedded in the positioning grooves 54 .
[0027] Example 2: A processing mold for electronic products, comprising: an upper template 1 equipped with an upper mold core 3, a lower template 2 equipped with a lower mold core 4, a bottom substrate 11 arranged below the lower template 2, and a first side-drawing slider 51 and a second side-drawing slider 52 arranged opposite to each other. The lower template 2 and the bottom substrate 11 are connected by two support bars 12 arranged at intervals. The first side-drawing slider 51 and the second side-drawing slider 52 can each be slidably installed on the lower template 2 and can move closer to or away from each other in the horizontal direction. The upper template 1 is equipped with two slider shovel bases 6 corresponding to the first side-drawing slider 51 and the second side-drawing slider 52. The first side-drawing slider 51 and the second side-drawing slider 52 are respectively installed on the lower template 2. The side-drawing slider 51 and the second side-drawing slider 52, at their ends close to each other, can be slidably embedded in the lower mold core 4. A mounting through-hole 41 extending obliquely downward is provided on the upper surface of the lower mold core 4 and in the area between the first side-drawing slider 51 and the second side-drawing slider 52. An oblique-drawing slider 7 can be slidably installed in this mounting through-hole 41. When in the mold closing state, a cavity 10 for molding a product is formed between the end surface of the upper end of the oblique-drawing slider 7 and the upper mold core 3, the lower mold core 4 and the first side-drawing slider 51 and the second side-drawing slider 52 close to each other. The upper end of the ejector pin 131 can be embedded in this cavity 10.
[0028] The lower end of the oblique pull-out slider 7 passes through the mounting through-hole 41 and is slidably connected to an oblique pull-out slider seat 8 that can slide in the horizontal direction. The oblique pull-out slider seat 8 is provided with an obliquely arranged oblique pull-out groove 81 at one end close to the oblique pull-out slider 7. The oblique pull-out groove 81 for the lower end of the oblique pull-out slider 7 to be embedded is lower than the other end near the lower mold core 4. The oblique pull-out slider 7 whose lower end surface is in sliding contact with the bottom surface of the oblique pull-out groove 81 is matched with the side wall of the oblique pull-out groove 81 by at least one group of guide protrusions 91 and guide grooves 92. A limiting sleeve 17 is installed on the lower mold plate 2 and below the oblique pull-out slider seat 8. The lower end of a vertically extending limiting spring 18 is engaged with the limiting sleeve 17 The bottom of the limit spring 18 is connected, the upper end of the limit spring 18 is sleeved on the outside of a limit pin 19, and the limit pin 19 has a radially outward flange portion 191. The lower surface of the flange portion 191 is in compression contact with the upper end surface of the limit spring 18 and is located above the inner wall of the limit sleeve 17. An inner convex portion 171 that cooperates with the flange portion 191 is provided. The lower surface of the obliquely withdrawn slider seat 8 is provided with two limit grooves 20 arranged at intervals along its movement direction. When the upper end surface of the flange portion 191 on the limit pin 19 is in contact with the lower end surface of the inner convex portion 171 on the inner wall of the limit sleeve 17, the upper end of the limit pin 19 that can move in the vertical direction is embedded in any one of the limit grooves 20.
[0029] The first side-drawing slider 51 and the second side-drawing slider 52 are each provided with a protrusion 15 on the end surface facing one end of the oblique-drawing slider 7 and located on the outside of the cavity 10 area. The oblique-drawing slider 7 is provided with a through hole 16 for two oppositely arranged protrusions 15 to be embedded. During the mold closing process, the two protrusions 15 close to each other are synchronously embedded in the through hole 16 on the oblique-drawing slider 7.
[0030] The cross section of the limiting groove 20 is triangular, and the upper end of the limiting groove 20 is configured to be tapered.
[0031] At least one set of mutually cooperating positioning protrusions 53 and positioning grooves 54 is provided between the first side-drawing slider 51 and the second side-drawing slider 52 . When in the mold closing state, the positioning protrusions 53 are correspondingly embedded in the positioning grooves 54 .
[0032] When in the mold closing state, the oblique pull-out slider is at the top of its stroke, the upper mold core and the lower mold core are close to each other in the vertical direction, the first side pull-out slider and the second side pull-out slider are close to each other in the horizontal direction, and the protrusions thereon are respectively embedded in the through holes on the oblique pull-out slider, and molten glue is injected into the mold cavity surrounded by the oblique pull-out slider, the upper mold core, the lower mold core, the first side pull-out slider and the second side pull-out slider through the glue injection channel to perform injection molding, cooling and molding of the product to be processed;
[0033] After the product is cooled and formed, the mold is opened;
[0034] The main process of mold opening is as follows:
[0035] First, the upper template is driven to move away from the lower template in the vertical direction. During this process, the upper mold core and the slider shovel base move with the upper template, so that the upper mold core and the lower mold core are separated to achieve demoulding. The first side pull-out slider and the second side pull-out slider are driven by the slider shovel base to move away from each other in the horizontal direction to achieve demoulding.
[0036] Next, the oblique pull-out slider seat is driven horizontally away from the lower die until the upper end of the limit pin is embedded in the limit groove of the oblique pull-out slider seat close to the oblique pull-out slider. During this process, through the cooperation of the guide protrusion and the guide groove in the oblique pull-out slide groove, the oblique pull-out slider seat is pulled to slide downward and backward in the mounting through hole on the lower die to realize demoulding;
[0037] The mold is closed again to process and shape the next product;
[0038] The main process of mold closing is as follows:
[0039] The oblique pull-out slider seat approaches the lower die core in the horizontal direction until the upper end of the limit pin is embedded in the limit groove on the oblique pull-out slider seat away from the oblique pull-out slider. The oblique pull-out slider slides forward and upward in the mounting through hole on the lower die core under the reverse push of the oblique pull-out slider seat until the flange surface on the oblique pull-out slider is in contact with the stop step surface in the mounting through hole;
[0040] The upper template is driven to move downward in the vertical direction and approach the lower template. During this process, the upper mold core and the slider shovel base move downward with the upper mold core, so that the upper mold core and the lower mold core are close to each other in the vertical direction, and the first side-drawing slider and the second side-drawing slider are driven by the slider shovel base to approach each other in the horizontal direction, and the two mutually close protrusions thereon are synchronously embedded in the through holes on the oblique-drawing slider to realize mold closing, and the molten glue is injected into the cavity surrounded by the oblique-drawing slider, the upper mold core, the lower mold core, the first side-drawing slider and the second side-drawing slider through the glue injection channel again, and the product to be processed is injection molded, cooled and formed.
[0041] When using the above-mentioned electronic product processing mold, while meeting the precision appearance requirements of the molded product through the three sets of core-pulling sliders, it can also improve the position accuracy of the oblique-pulling sliders during multiple mold opening and closing processes, thereby improving product yield and consistency;
[0042] Furthermore, the positioning accuracy of the three core-pulling sliders during mold closing is improved, avoiding the relative movement of multiple core-pulling sliders during mold closing to form minute tolerances and cause obvious clamping lines on the molded products. The stability of the step difference of the molded products is improved, ensuring the consistent and beautiful appearance, and achieving a precise molding effect with visible but not tangible clamping lines.
[0043] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.
Claims
1. A processing mold for electronic products, comprising: An upper mold plate (1) is provided with an upper mold core (3), a lower mold plate (2) is provided with a lower mold core (4), a bottom base plate (11) is provided below the lower mold plate (2), and a first side-drawing slider (51) and a second side-drawing slider (52) are provided opposite to each other. The lower mold plate (2) and the bottom base plate (11) are connected by two spaced support bars (12). The first side-drawing slider (51) and the second side-drawing slider (52) are each slidably provided on the lower mold plate (2) and can move closer to or farther from each other in the horizontal direction. The upper mold plate (1) is provided with two slider shovel bases (6) corresponding to the first side-drawing slider (51) and the second side-drawing slider (52). The characteristics are as follows: The block (51) and the second side-drawing slider (52) are both slidably embedded in the lower mold core (4), and an upper surface of the lower mold core (4) and an area between the first side-drawing slider (51) and the second side-drawing slider (52) are provided with a mounting hole (41) extending obliquely downward. An inclined-drawing slider (7) is slidably installed in the mounting hole (41). When in the mold closing state, the end surface of the upper end of the inclined-drawing slider (7) and the upper mold core (3), the lower mold core (4) and the first side-drawing slider (51) and the second side-drawing slider (52) close to each other form a cavity (10) for molding a product. The upper end of a pin (131) can be embedded in the cavity (10); The lower end of the inclined pull-out slider (7) passes through the mounting through hole (41) and is slidably connected to an inclined pull-out slider seat (8) that can slide in the horizontal direction. The inclined pull-out slider seat (8) is provided with an inclined inclined pull-out groove (81) at one end close to the inclined pull-out slider (7), and the inclined pull-out groove (81) for the lower end of the inclined pull-out slider (7) to be embedded is lower than the other end of the inclined pull-out groove (81) close to the lower mold core (4). The inclined pull-out slider (7) whose lower end surface is in sliding contact with the bottom surface of the inclined pull-out groove (81) is connected to the side wall of the inclined pull-out groove (81) through at least one set of guide protrusions (91) and guide grooves (92). A limiting sleeve (17) is installed on the lower mold plate (2) and below the inclined pull-out slider seat (8). The lower end of a vertically extending limiting spring (18) is in contact with the limiting sleeve (1 7), the upper end of the limit spring (18) is sleeved on the outside of a limit pin (19), and the limit pin (19) has a flange portion (191) radially outward, and an inner convex portion (171) cooperating with the flange portion (191) is provided above the flange portion (191) whose lower surface is in compression contact with the upper end surface of the limit spring (18) and is located on the inner wall of the limit sleeve (17), and the lower surface of the inclined sliding block seat (8) is provided with two limit grooves (20) spaced along the direction of movement thereof. When the upper end surface of the flange portion (191) on the limit pin (19) is in contact with the lower end surface of the inner convex portion (171) on the inner wall of the limit sleeve (17), the upper end of the limit pin (19) that can move in the vertical direction is embedded in any one of the limit grooves (20).
2. The electronic product processing mold according to claim 1, characterized in that: The first side-drawing slider (51) and the second side-drawing slider (52) are each provided with a protrusion (15) on the end surface facing one end of the oblique-drawing slider (7) and located outside the cavity (10) area. The oblique-drawing slider (7) is provided with a through hole (16) for two oppositely arranged protrusions (15) to be embedded. During the mold closing process, the two protrusions (15) that are close to each other are synchronously embedded in the through hole (16) on the oblique-drawing slider (7).
3. The electronic product processing mold according to claim 1, characterized in that: The cross section of the limiting groove (20) is triangular, and the upper end of the limiting groove (20) is configured as a pointed cone.
4. The electronic product processing mold according to claim 1, characterized in that: When in the mold closing state, the upper end of the limit pin (19) is embedded in the limit groove (20) away from the oblique withdrawal slide block (7).
5. The electronic product processing mold according to claim 1, characterized in that: The lower mold core (4), the first side-drawing slider (51), the second side-drawing slider (52) and the oblique-drawing slider seat (8) are each embedded and installed in a lower accommodating groove opened on the upper surface of the lower mold plate (2).
6. The electronic product processing mold according to claim 1, characterized in that: At least one set of mutually cooperating positioning protrusions (53) and positioning grooves (54) is provided between the first side-drawing slider (51) and the second side-drawing slider (52); when in the mold closing state, the positioning protrusions (53) are correspondingly embedded in the positioning grooves (54).