Secondary sliding block delay core mold

Abstract

The utility model is suitable for core -pulling mould technical field provides a kind of secondary slider time-delay core -pulling mould, including mould main body, inclined column drive module and time-delay core -pulling module, inclined column drive module is slidably installed on mould main body, and one end of inclined column drive module is connected with time-delay core -pulling module, and time-delay core -pulling module is contacted with copper bar product assembled on mould main body;Inclined column drive module can drive the both ends of core -pulling time-delay module to time-delay work by the mode of sliding, so that the one end of core -pulling time-delay module is separated from glue dispensing groove structure on copper bar product first, avoid the product deformation caused by inverted buckle jamming, ensure the forming quality of copper bar product;Then the other end completes time-delay core -pulling action, avoid friction with copper bar product surface, realize the zero contact of copper bar product and separate, improve the production efficiency and production quality of copper bar product, and reduce the replacement or maintenance frequency of mould, prolong the service life of mould.

Description

Technical Field

[0001] This utility model belongs to the field of core-pulling mold technology, and in particular relates to a secondary slider delayed core-pulling mold. Background Technology

[0002] In the manufacturing process of new energy vehicle motors, the copper busbar, as a core component for high-voltage current transmission, directly determines the safe operation and service life of the motor through its insulation performance and structural stability. To meet the insulation protection and leakage prevention requirements of the copper busbar, the industry generally adopts injection molding. The copper busbar (usually made of T2 copper) is encapsulated and molded using insulating plastics such as PA66 + 30% glass fiber. A dispensing groove is designed around the perimeter of the plastic structure. This dispensing groove needs to cooperate with the subsequent sealant to form a closed-loop seal. Therefore, the molding precision and surface integrity of the copper busbar are required to be extremely high.

[0003] The dispensing groove is a typical undercut structure, requiring a mold slider core-pulling process for molding and demolding. Existing molds generally use a conventional horizontal slider core-pulling structure. When the mold opens, the slider moves horizontally along the template, directly detaching from the undercut of the dispensing groove on the product. After core pulling is completed, the product is ejected by ejector pins. However, there are still technical defects in practical application:

[0004] Because copper busbars are relatively soft, while horizontal sliders are typically made of pre-hardened steel or stainless steel to ensure wear resistance and molding precision, the hardness of the two materials differs significantly. During the core-pulling process, the horizontal slider needs to move closely against the surface of the copper busbar to completely detach from the adhesive groove undercut. Direct sliding friction between the slider and the copper busbar is inevitable, resulting in scratches on the surface of the copper busbar. These scratches not only compromise the interfacial seal between the insulating plastic and the copper busbar, potentially leading to high-voltage leakage, but also weaken the current transmission stability of the copper busbar. Over long-term use, this can cause localized overheating due to current concentration at the scratches, shortening the motor's lifespan and even potentially causing traffic accidents.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a secondary slider delayed core-pulling mold to overcome the shortcomings in current practical applications. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model embodiment is to provide a secondary slider delay core pulling mold to solve the problems in the background technology mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A secondary slider delay core-pulling mold includes a mold body. A slanted column drive module and a delay core-pulling module are respectively installed at the front and rear of the mold body. The slanted column drive module is slidably installed on the mold body. One end of the slanted column drive module is connected to the delay core-pulling module. The delay core-pulling module contacts a copper busbar product assembled on the mold body. The slanted column drive module drives both ends of the delay core-pulling module to work in a delayed manner by sliding. One end of the delay core-pulling module first separates from the glue groove structure on the copper busbar product, and then its other end completes the delayed core-pulling action.

[0009] As a further technical solution of this utility model, the inclined column drive module includes a slide, a guide block, a pressure strip, an inclined guide column, and a pressure block. The bottom of the slide is horizontally slidably mounted on the mold body through the guide block. The pressure strip is symmetrically arranged on both sides of the slide and mounted on the mold body. The pressure strip is used to limit the two sides of the slide. The top of the inclined guide column is fixed with a pressure block. The bottom of the inclined guide column is inclinedly slidably engaged with the slide. A connecting groove one and a connecting groove two are respectively opened on one side of the slide. The connecting groove one and the connecting groove two are on the same side, and the connecting groove one is located above the connecting groove two. Both the connecting groove one and the connecting groove two are used for the installation of the delayed core pulling module.

[0010] As a further technical solution of this utility model, the bottom and side of the slide are respectively provided with a bottom wear-resistant block and a back wear-resistant block. The bottom wear-resistant block slides in contact with the slide and is fixed on the mold body. The back wear-resistant block is fixed on the side of the slide and slides in contact with the pressure block.

[0011] As a further technical solution of this utility model, the delayed core-pulling module includes a secondary slider guide insert, a secondary slider insert, a secondary slider delay connecting block, a pin, and a secondary delayed slider insert. The secondary slider guide insert is fixed on the mold body and located between the slide block and the copper busbar product. The secondary slider guide insert has an upper inclined guide groove and a lower inclined guide groove respectively. The upper inclined guide groove slides in conjunction with the secondary slider insert. One end of the secondary slider insert is installed in the first connecting groove. The secondary slider insert cooperates with the glue groove structure on the copper busbar product. The lower inclined guide groove slides in conjunction with the secondary delayed slider insert. One end of the secondary delayed slider insert cooperates with the bottom of the copper busbar product. The other end of the secondary delayed slider insert is equipped with a secondary slider delay connecting block. The secondary slider delay connecting block has a U-shaped groove that slides in conjunction with the pin. One end of the secondary slider delay connecting block is located in the second connecting groove, and the pin is fixed in the second connecting groove.

[0012] As a further technical solution of this utility model, the slope of the upper inclined guide groove is 10°, and the slope of the lower inclined guide groove is 20°.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The inclined column drive module can drive the two ends of the core-pulling delay module to work in a delayed manner through sliding. This allows one end of the core-pulling delay module to first separate from the glue groove structure on the copper busbar product, avoiding product deformation caused by being stuck due to inverted clamping, and ensuring the molding quality of the copper busbar product. Then, the other end completes the delayed core-pulling action, avoiding friction with the surface of the copper busbar product, achieving zero-contact separation of the copper busbar product, improving the production efficiency and quality of the copper busbar product, and reducing the number of mold replacements or maintenance, thus extending the service life of the mold.

[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the secondary slider delay core-pulling mold provided in an embodiment of the present invention.

[0017] Figure 2 This is a front view of the cross-sectional view of the secondary slider delay core-pulling mold structure provided in an embodiment of this utility model.

[0018] Figure 3 for Figure 1 A schematic diagram of the inclined column drive module.

[0019] Figure 4 for Figure 3 A bottom view of the structure of the inclined column drive module.

[0020] Figure 5 for Figure 1 A schematic diagram of the structure of the medium-delay core-pulling module.

[0021] Figure 6 for Figure 5 Exploded view of the structure of the mid-delay core-pulling module.

[0022] Figure 7 for Figure 6 Assembly diagram of the secondary slider insert, secondary delay slider insert and copper busbar products.

[0023] Reference numerals: 1-Mold body, 2-Angled column drive module, 21-Slide block, 22-Guide block, 23-Pressure strip, 24-Angled guide column, 25-Pressure block, 26-Back wear-resistant block, 27-Bottom wear-resistant block, 28-Connecting groove one, 29-Connecting groove two, 3-Delayed core pulling module, 31-Secondary slider guide insert, 311-Upper angled guide groove, 312-Lower angled guide groove, 32-Secondary slider insert, 33-Secondary slider delayed connecting block, 331-U-shaped groove, 34-Pin, 35-Secondary delayed slider insert, 4-Copper busbar product. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] like Figures 1 to 7 As shown in the figure, a secondary slider delayed core-pulling mold provided as an embodiment of this utility model includes a mold body 1. The mold body 1 is equipped with a slanted column drive module 2 and a delayed core-pulling module 3 at the front and rear, respectively. The slanted column drive module 2 is slidably mounted on the mold body 1. One end of the slanted column drive module 2 is connected to the delayed core-pulling module 3. The delayed core-pulling module 3 is in contact with the copper busbar product 4 assembled on the mold body 1. The slanted column drive module 2 can drive both ends of the delayed core-pulling module to work in a delayed manner by sliding, so that one end of the delayed core-pulling module first separates from the glue groove structure on the copper busbar product 4, avoiding product deformation caused by undercutting and ensuring the molding quality of the copper busbar product 4; then the other end completes the delayed core-pulling action, avoiding friction with the surface of the copper busbar product 4, realizing zero-contact separation of the copper busbar product 4, improving the production efficiency and quality of the copper busbar product 4, reducing the number of mold replacements or maintenance, and extending the service life of the mold.

[0027] like Figures 1 to 4 As shown, in a preferred embodiment of this utility model, the inclined column drive module 2 includes a slide 21, a guide block 22, a pressure strip 23, an inclined guide post 24, and a pressure block 25. The bottom of the slide 21 is horizontally slidably mounted on the mold body 1 via the guide block 22. The pressure strip 23 is symmetrically arranged on both sides of the slide 21 and mounted on the mold body 1. The pressure strip 23 is used to limit the two sides of the slide 21 to prevent warping or other phenomena during sliding. The top of the inclined guide post 24 is fixed with the pressure block 25. The bottom of the inclined guide post 24 is inclined and slidably engaged with the slide 21. A connecting groove 1 28 and a connecting groove 29 are respectively opened on one side of the slide 21. The connecting groove 1 28 and the connecting groove 29 are on the same side, and the connecting groove 1 28 is located above the connecting groove 29. Both the connecting groove 1 28 and the connecting groove 29 are used for the installation of the delay core pulling module 3.

[0028] like Figures 1 to 4As shown, in a preferred embodiment of this utility model, the bottom and side of the slide 21 are respectively provided with a bottom wear-resistant block 27 and a back wear-resistant block 26. The bottom wear-resistant block 27 slides in contact with the slide 21 and is fixed on the mold body 1. The back wear-resistant block 26 is fixed on the side of the slide 21 and slides in contact with the pressure block 25. The bottom wear-resistant block 27 can prevent the bottom of the slide 21 from directly contacting the mold body 1, reducing the possibility of friction between the two and extending the service life of the mold body 1 and the slide 21. The back wear-resistant block 26 can replace the slide 21 in bearing the pressure and friction from the pressure block 25, avoiding wear caused by direct contact between the two and extending the service life of both.

[0029] The pressure block 25 drives the inclined guide post 24 to move vertically. The inclined guide post 24 can drive the slide 21 to move horizontally on the mold body 1 through vertical movement and tilting sliding cooperation with the slide 21. The guide block 22 guides the movement of the slide 21 to ensure the stability and accuracy of the core pulling trajectory. The pressure strip 23 limits the two sides of the slide 21 to prevent warping during sliding. The slide 21 can drive the delayed core pulling module 3 to work for a delay through the connecting groove 1 28 and connecting groove 29, thereby completing the delayed core pulling of the copper busbar product 4, avoiding friction between the core and the surface of the copper busbar product 4, achieving zero-contact separation of the copper busbar product 4, improving the production efficiency and quality of the copper busbar product 4, reducing the number of mold replacements or maintenance, and extending the service life of the mold.

[0030] like Figures 2 to 7 As shown, in a preferred embodiment of this utility model, the delay core-pulling module 3 includes a secondary slider guide insert 31, a secondary slider insert 32, a secondary slider delay connecting block 33, a pin 34, and a secondary delay slider insert 35. The secondary slider guide insert 31 is fixed on the mold body 1 and located between the slide block 21 and the copper busbar product 4. The secondary slider guide insert 31 has an upper inclined guide groove 311 and a lower inclined guide groove 312 respectively. The upper inclined guide groove 311 slides with the secondary slider insert 32. One end of the secondary slider insert 32 is installed in the connecting groove. Within the first 28, the secondary slider insert 32 cooperates with the glue groove structure on the copper busbar product 4, the downward inclined guide groove 312 slides with the secondary delay slider insert 35, one end of the secondary delay slider insert 35 cooperates with the bottom of the copper busbar product 4, and the other end of the secondary delay slider insert 35 is equipped with a secondary slider delay connecting block 33. The secondary slider delay connecting block 33 has a U-shaped groove 331 that slides with the pin 34. One end of the secondary slider delay connecting block 33 is located in the second connecting groove 29, and the pin 34 is fixed in the second connecting groove 29.

[0031] like Figures 2 to 7As shown, in a preferred embodiment of the present invention, the slope of the upper inclined guide groove 311 is 10° and the slope of the lower inclined guide groove 312 is 20°.

[0032] Initially, one end of the secondary slider insert 32 abuts against the glue groove structure on the copper busbar product 4, and the secondary delay slider insert 35 abuts against the bottom of the copper busbar product 4. When the slide block 21 moves away from the copper busbar product 4, the slide block 21 drives the secondary slider insert 32 and the pin 34 to move synchronously through the connecting groove 1 28 and the connecting groove 29 respectively. The pin 34 first slides in the U-shaped groove 331, so that the secondary slider delay connecting block 33 and the secondary delay slider insert 35 are initially in a stationary state and have not separated from the copper busbar product 4. The secondary slider insert 32 moves upward at an angle in the upper inclined guide groove 311, thereby preferentially separating from the glue groove structure, avoiding product deformation caused by undercutting, and ensuring the molding quality of the copper busbar product 4.

[0033] When the pin 34 moves to the limit position and contacts the U-shaped groove 331, the pin 34 drives the secondary slider delay connecting block 33 to move synchronously. The secondary slider delay connecting block 33 drives the secondary delay slider insert 35 to slide in the lower inclined guide groove 312, thereby completing the delayed core pulling action. The delayed action of the secondary delay slider insert 35 can avoid friction with the surface of the copper busbar product 4, realize the zero-contact separation of the copper busbar product 4, ensure zero damage to the core pulling of the copper busbar product 4, ensure the stability of high voltage current transmission, and the double slope design can shorten the core pulling stroke, improve the production efficiency and production quality of the copper busbar product 4, reduce the number of mold replacements or maintenance, and extend the service life of the mold.

[0034] After the secondary slider insert 32 and the secondary delay slider insert 35 are separated from the copper busbar product 4, the mold body 1 ejects the copper busbar product 4 through its ejector pin, thereby completing the automatic ejection of the copper busbar product 4, which is convenient for the staff to pick it up, and also convenient for the staff to quickly place the next copper busbar product 4, thus completing the rapid positioning of the copper busbar product 4.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A secondary slider delayed core-pulling mold, comprising a mold body, characterized in that, The mold body is equipped with a slanted column drive module and a delayed core-pulling module at the front and rear, respectively. The slanted column drive module is slidably mounted on the mold body. One end of the slanted column drive module is connected to the delayed core-pulling module. The delayed core-pulling module is in contact with the copper busbar product assembled on the mold body. The slanted column drive module drives the two ends of the delayed core-pulling module to work in a delayed manner by sliding. One end of the delayed core-pulling module first separates from the glue groove structure on the copper busbar product, and then its other end completes the delayed core-pulling action.

2. The secondary slider delayed core-pulling mold according to claim 1, characterized in that, The inclined column drive module includes a slide, a guide block, a pressure strip, an inclined guide column, and a pressure block. The bottom of the slide is horizontally slidably mounted on the mold body via the guide block. The pressure strip is symmetrically arranged on both sides of the slide and mounted on the mold body. The pressure strip is used to limit the movement of both sides of the slide. The top of the inclined guide column is fixed with a pressure block. The bottom of the inclined guide column is inclinedly slidably engaged with the slide. A connecting groove 1 and a connecting groove 2 are respectively opened on one side of the slide. The connecting groove 1 and the connecting groove 2 are on the same side, and the connecting groove 1 is located above the connecting groove 2. Both the connecting groove 1 and the connecting groove 2 are used for the installation of the delayed core pulling module.

3. The secondary slider delayed core-pulling mold according to claim 2, characterized in that, The bottom and side of the slide are respectively provided with a bottom wear-resistant block and a back wear-resistant block. The bottom wear-resistant block slides in contact with the slide and is fixed to the mold body. The back wear-resistant block is fixed to the side of the slide and slides in contact with the pressure block.

4. The secondary slider delayed core-pulling mold according to claim 2, characterized in that, The delayed core-pulling module includes a secondary slider guide insert, a secondary slider insert, a secondary slider delayed connecting block, a pin, and a secondary delayed slider insert. The secondary slider guide insert is fixed on the mold body and located between the slide block and the copper busbar product. The secondary slider guide insert has an upper inclined guide groove and a lower inclined guide groove respectively. The upper inclined guide groove slides with the secondary slider insert. One end of the secondary slider insert is installed in the first connecting groove. The secondary slider insert mates with the glue groove structure on the copper busbar product. The lower inclined guide groove slides with the secondary delayed slider insert. One end of the secondary delayed slider insert mates with the bottom of the copper busbar product. The other end of the secondary delayed slider insert is equipped with a secondary slider delayed connecting block. The secondary slider delayed connecting block has a U-shaped groove that slides with the pin. One end of the secondary slider delayed connecting block is located in the second connecting groove, and the pin is fixed in the second connecting groove.

5. The secondary slider delayed core-pulling mold according to claim 4, characterized in that, The slope of the upper inclined guide groove is 10°, and the slope of the lower inclined guide groove is 20°.

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