Automobile front wire sleeve mold

Abstract

The application relates to an automobile front threading sleeve mold, aiming to solve the technical problem that the mold boundary of two molds is abraded during the use of the mold, the mold line becomes thicker and thicker with the abrasion, and frequent repair leads to the increase of production cost, and the automobile front threading sleeve mold comprises an upper mold plate and a lower mold plate, a plurality of glue injection cavities are arranged on the upper mold plate and the lower mold plate; a middle horizontal groove is arranged in the middle of the lower mold plate and the upper mold plate, a middle horizontal beam is arranged in the middle horizontal groove of the lower mold plate, a plurality of connecting rods are arranged in the glue injection cavities in the width direction of the middle horizontal beam, end blocks for being placed in the glue injection cavities are arranged at the ends of the connecting rods, core blocks matched with the glue injection cavities are arranged on the two sides of the end blocks, lip edge grooves are arranged around the end blocks, core mold rods are arranged on the core blocks, and end blocks for blocking the ends of the core mold rods away from the core blocks are arranged on the two sides of the middle horizontal groove of the lower mold plate. The application has the effect of saving mold cost.

Description

Technical Field

[0001] This application relates to the field of molds, and in particular to a mold for a front wiring sleeve for automobiles. Background Technology

[0002] The automotive front wiring conduit is installed between the car door and the chassis, and is used to protect the car's power and data cables. Because the wiring conduit is installed between the door and the chassis and is used to protect the wires, it needs to have a high degree of sealing.

[0003] Among related technologies, Chinese patent CN213035206U discloses a glue-injecting device and mold for a rubber wiring sleeve mold for automotive doors. This primarily addresses the problem of defects easily occurring at the glue inlet, leading to product bulging or cracking during blow-drying demolding and resulting in direct product scrap. The device includes a glue-injecting section; a flow-diverting section located below the glue-injecting section, comprising: two branch channels located at the lower ends of the two glue-injecting channels; a first glue-injecting port located above the branch channels; a second glue-injecting port located below the first glue-injecting port; the width of the second glue-injecting port when viewed from the front is the same as the branch channel; and a mold cavity located below the flow-diverting section.

[0004] During the use of the above-mentioned mold, the inventors discovered that the above technology has at least the following problems: Since the mold needs to be sandblasted and demolded during use, the parting boundary between the two molds will inevitably be worn. As the wear increases, the parting line becomes thicker, which will affect the waterproof performance of the conduit. Therefore, it is inevitable to repair the mold frequently, which leads to an increase in production costs. Summary of the Invention

[0005] To reduce costs caused by mold wear, this application provides a mold for automotive front wiring sleeve.

[0006] This application provides a front wiring sleeve mold for automobiles, which adopts the following technical solution:

[0007] A mold for automotive front wiring sleeve includes an upper template and a lower template, both of which have multiple injection cavities. A central transverse groove is formed in the middle of both the upper and lower templates. A central transverse beam is provided in the central transverse groove of the lower template. Multiple connecting rods inserted into the injection cavities are passed through the central transverse beam along its width. Each connecting rod has a sealing block at its end for placement in the injection cavity. Core modules that fit with the injection cavity are provided on both sides of the sealing block. Lip grooves are provided around the core modules on the sealing block. A core mold rod is provided on the core module. End modules for sealing the end of the core mold rod away from the core module are provided on both sides of the central transverse groove of the lower template.

[0008] By adopting the above technical solution, the injection cavities opened in the upper and lower mold plates can be used for product injection molding, while the end-sealing block at the end of the connecting rod on the middle crossbeam can seal the end of the product. At the same time, the lip groove on the end-sealing block can form a lip on the edge of the product during the injection process to improve the sealing performance of the product. Since the end-sealing block is set separately from the upper and lower mold plates, it can be replaced when the parting line is worn, which greatly reduces the overall cost of precision repair of the upper and lower mold plates. On the other hand, since the middle part of the product is hollow tubular, a core mold rod is required as a core mold. Therefore, the other end of the core mold rod needs to be sealed with an end module to prevent rubber from entering the tube during the injection process. Furthermore, the end module is set separately from the upper and lower mold plates, which also facilitates the disassembly and replacement of the end module, making it easier to replace after the end module is worn, and further reducing the cost of mold repair.

[0009] In one specific implementation scheme, the lower template has mounting slots communicating with the injection cavity on both sides of the middle transverse groove. An end mold connecting plate is slidably connected in the mounting slot along the length of the core mold rod. The end mold connecting plate has clearance holes for inserting end modules. A forming ring groove is provided on the side of the end mold connecting plate facing the core mold rod. An end crossbeam for fixing the end module is provided on the side of the lower template on the end mold connecting plate away from the core mold rod. A fixing component for fixing the end crossbeam is provided on the side of the upper template on the end crossbeam away from the core mold rod.

[0010] By adopting the above technical solution, the fixing component fixes the end beam, and the end module on the end beam is in the clearance hole during the fixing process, so the end mold connecting plate can be pressed against the mounting through groove. Therefore, the fixing component can press the end module against the end of the core mold rod away from the core module. Also, since the molding ring groove opened on the side of the end mold connecting plate facing the core mold rod can form the lip of the other end of the product after the glue is injected and solidified, the end module, end mold connecting plate and end beam are all set separately from the upper mold plate and the lower mold plate, so it is also convenient to replace the upper mold plate and the lower mold plate when they are worn, thereby ensuring the lip sealing while reducing the cost of mold maintenance.

[0011] In one specific implementation, the fixing component includes an abutment block disposed below the upper template and a locking bolt for fixing the abutment block to the upper template. The end beam has an abutment ramp on the side facing away from the core mold rod, and the abutment block has a clamping ramp on the side facing the core mold rod for clamping the abutment ramp. The abutment block is provided with a positioning component to facilitate positioning of the abutment block.

[0012] By adopting the above technical solution, the locking bolt and the upper template threaded connection can fix the abutment block on the upper template. During the downward movement of the upper template, the abutment block is driven downward, and the abutment slope on the abutment block can abut against the pressing slope, thereby pushing the end beam to press the end mold connecting plate against the side wall of the installation through groove, thereby fixing the end beam and the end mold connecting plate.

[0013] In one specific implementation, the positioning component includes a positioning rod disposed on the abutment block and a positioning block disposed on the bottom surface of the abutment block. The lower template has a positioning hole for the positioning rod to pass through. The end of the positioning rod is provided with a guide arc surface. The lower template has a recessed hole. A recessed block that matches the positioning block is disposed in the recessed hole. The positioning block is provided with a guide slope that facilitates insertion into the recessed block.

[0014] By adopting the above technical solution, during the downward movement of the abutting block, the positioning rod is inserted into the positioning hole to provide a pre-positioning for the abutting block. Then, the positioning block is inserted into the recessed block in the sinking hole, thereby further increasing the abutting area. This facilitates accurate positioning of the abutting block, allowing it to move to the corresponding position and preventing positional deviation.

[0015] In one specific implementation scheme, a positioning circular plate is provided at the end of the positioning plate away from the guide arc surface, a countersunk hole is provided on the upper template, the positioning rod is interference-fitted with the countersunk hole, and a heating plate is provided on the top of the upper template to abut against the positioning rod.

[0016] By adopting the above technical solution, the countersunk hole allows the end of the positioning rod to form a positioning circular plate with a larger end face. The positioning rod is inserted into the countersunk hole with an interference fit, thereby fixing the positioning rod in the countersunk hole. Since the heating plate is fixed on the top of the upper template, the upward movement of the positioning rod can be restricted, thereby further fixing the position of the positioning rod.

[0017] In one specific implementation scheme, support blocks are provided at both ends of the middle crossbeam, and connecting plates are fixed on the support blocks. Slide grooves are provided at both ends of the connecting plates. The end of the slide groove away from the middle crossbeam is inclined downward. Rolling bearings inserted into the slide grooves are respectively provided at both ends of the end crossbeam and the end mold connecting plate.

[0018] By adopting the above technical solution, the rotating bearing is inserted into the groove of the connecting plate, which can limit the movement of the end beam and the end mold connecting plate, so that the end beam and the end mold connecting plate can move along the track formed by the groove. On the one hand, it can prevent the end beam and the end mold connecting plate from shifting in position along the length of the end beam during demolding, which would lead to misalignment in subsequent installation. On the other hand, it can provide guidance for the movement of the end beam and the end mold connecting plate, so that the movement of the end beam and the end mold connecting plate meets the requirements of mold closing.

[0019] In one specific implementation scheme, limit baffles are respectively provided at both ends of the end beam and the end mold connecting plate. The limit baffles are used to limit the position of the end beam and the end mold connecting plate. The side surface of the connecting plate facing the lower mold is provided with a limit block for abutting against the limit baffle.

[0020] By adopting the above technical solution, the limiting block and the limiting baffle abut against each other, thereby restricting the position of the end beam and preventing the fixing component from abutting too far when fixing the end beam and the end mold connecting plate, which would cause the lip to deform.

[0021] In one specific implementation scheme, the core module is provided with a mounting block, the mounting block is provided with a connecting hole, and the end of the core mold rod is provided with a connecting block adapted to the connecting hole; a limiting rod is inserted into the connecting block and passes through the mounting block, and the two ends of the limiting rod are provided with transition slopes for fitting the surface of the mounting block.

[0022] By adopting the above technical solution, the limiting rod is inserted into the mounting block and the connecting block, thereby fixing the core mold rod on the mounting block. The setting of the transition slope makes the end of the limiting rod smoothly transition with the surface of the mounting block, thereby ensuring the flatness of the inner wall of the product.

[0023] In one specific implementation, the end of the core mold rod away from the connecting block is provided with a plug hole, the end module is provided with a plug block inserted into the plug hole, the plug block is provided with a plug bevel to facilitate insertion into the plug hole, and the surface of the end module is provided with a mating slot to facilitate insertion of the core mold rod.

[0024] By adopting the above technical solution, the insertion bevel at the end of the plug block can be inserted into the plug hole even when the center of the end module and the core mold rod is slightly offset. As the core mold rod is pressed against by the fixing component, the plug block is driven to insert into the plug hole. Therefore, the insertion of the plug block into the plug hole can correct the slight positional offset of the core mold rod. The mating slot is provided for the end of the core mold rod to be inserted, thereby sealing the plug hole and preventing the glue from flowing into the plug hole.

[0025] In one specific implementation scheme, the two ends of the middle crossbeam are provided with docking holes, and guide posts are provided in the docking holes. The upper template is provided with guide holes for the guide posts to be inserted. The middle crossbeam is provided with a separation hole in the middle of the docking holes, and a separation spring is provided in the separation hole.

[0026] By adopting the above technical solution, the guide post in the docking hole is accurately inserted into the guide hole when the upper template and the lower template are docked, thereby playing a positioning role in fixing the middle cross beam, so that the separation spring in the separation hole can abut against the upper template; when the upper template and the lower template are closed, the abutting spring is compressed, thereby providing a separation force between the upper template and the lower template, which can quickly separate the upper template and the lower template when the upper template needs to be demolded, facilitating demolding.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By employing a technology that combines an upper mold plate, a lower mold plate, an injection cavity, a middle horizontal groove, a middle horizontal beam, a connecting rod, an end-sealing block, a core module, a lip groove, a core mold rod, and an end module, the injection cavities in the upper and lower mold plates provide for product injection molding. The end-sealing block at the end of the connecting rod on the middle horizontal beam seals the ends of the product. Simultaneously, the lip groove on the end-sealing block forms a lip at the product's edge during injection, improving its sealing performance. Since the end-sealing block is separate from the upper and lower mold plates, it can be replaced when the parting line wears down, significantly reducing the cost of precision repairs to the upper and lower mold plates. Furthermore, because the product's central part is a hollow tube, a core mold rod is required as a core mold. Therefore, the other end of the core mold rod needs to be sealed with an end module to prevent rubber from entering the tube during injection. Additionally, the end module's separate design from the upper and lower mold plates facilitates disassembly and replacement, reducing mold repair costs.

[0029] 2. By employing a combination of mounting slots, end mold connecting plates, clearance holes, forming ring grooves, end crossbeams, abutment blocks, locking bolts, abutment ramps, clamping ramps, positioning rods, positioning blocks, positioning holes, guide arc surfaces, countersunk holes, concave blocks, guide ramps, positioning circular plates, countersunk holes, heating plates, mounting blocks, connections, connecting blocks, limit rods, transition ramps, insertion holes, insertion blocks, insertion ramps, and mating slots, it is easy to detachably and securely fix the core mold rod and end module in the mounting slot, thereby sealing the other end of the injection cavity and forming a lip at the end, thus further reducing production costs;

[0030] 3. By employing a combination of support blocks, connecting plates, slides, rolling bearings, limit baffles, limit blocks, mating holes, guide pillars, guide holes, separation holes, separation springs, and abutment holes, a movement trajectory restriction is provided for the movement of the end beam and end mold connecting plate, facilitating the demolding of the entire product. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a front wiring sleeve mold for automobiles in an embodiment of this application;

[0032] Figure 2 This is an exploded view of the structure surrounding the upper and lower templates in the embodiments of this application;

[0033] Figure 3 This is an exploded view of the internal structure of the upper and lower templates in the embodiments of this application;

[0034] Figure 4 This is an exploded view of the connection structure between the end cap block and the end module in the embodiments of this application;

[0035] Figure 5 This is a schematic diagram illustrating the terminal module structure in an embodiment of this application;

[0036] Figure 6 This is an exploded view of the structure at the connecting plate in the embodiments of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Upper template; 10. Top plate; 100. Injection hole; 101. Flow channel plate; 1011. Injection channel; 102. Cooling plate; 103. Heat insulation plate; 1030. Heating plate; 104. Flow hole; 105. Flow channel; 12. Guide hole; 13. Abutment hole; 131. Vent hole; 141. Abutment block; 1411. Abutting slope; 142. Locking bolt; 151. Positioning rod; 1511. Positioning round plate; 1512. Guide arc surface; 152. Positioning block; 16. Countersunk hole; 2. Lower template; 20. Base plate; 200. Glue retention hole; 21. Mounting through groove; 22. End mold connecting plate; 221. Molding ring groove; 222. Clearance hole; 23. End crossbeam; 231. End mold 1. Block; 2311. Insertion block; 2312. Insertion bevel; 2313. Butt joint slot; 232. Abutment bevel; 24. Positioning hole; 25. Recessed hole; 251. Concave block; 3. Injection cavity; 30. Separation chamber; 31. End sealing block; 310. Boss; 311. Core module; 312. Lip groove; 313. Mounting block; 3131. Connecting hole; 3132. Limiting rod; 3133. Transition bevel; 32. Core mold rod; 321. Connecting block; 322. Insertion hole; 4. Middle transverse groove; 41. Middle transverse beam; 411. Butt joint hole; 412. Separation hole; 4121. Separation spring; 42. Connecting rod; 5. Connecting plate; 51. Slide groove; 52. Limiting baffle; 53. Rolling bearing; 54. Limiting block. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0039] This application discloses a mold for a front wiring sleeve in an automobile. (Refer to...) Figure 1 The automotive front wiring sleeve mold includes, from top to bottom, a top plate 10, a flow channel plate 101, a cooling plate 102, a heat insulation plate 103, a heating plate 1030, an upper template 1, a lower template 2, a heating plate 1030, a heat insulation plate 103, and a bottom plate 20. The top plate 10, flow channel plate 101, cooling plate 102, heat insulation plate 103, and upper template 1 are fixed together with bolts, and the lower template 2, heating plate 1030, and bottom plate 20 are fixed together with bolts.

[0040] Reference Figure 2 and Figure 3 The upper template 1 and the lower template 2 are symmetrically arranged and fit together. An injection cavity 3 is provided at the joint surface of the upper template 1 and the lower template 2 to form a complete workpiece shape. To facilitate the molding of multiple products at one injection, a total of six sets of injection cavities 3 are provided. These six sets of injection cavities 3 are symmetrically arranged along the centerline of the width direction of the lower template 2. Each set of injection cavities 3 includes two symmetrically arranged separate chambers 30.

[0041] Reference Figure 2 and Figure 3 To facilitate glue injection, a glue injection hole 100 is provided in the center of the top plate 10. A glue injection channel 1011 is provided on the flow channel plate 101, which connects the glue injection hole 100 to each set of glue injection chambers 3. Glue flow holes 104 corresponding to each glue injection chamber 3 are provided on the cooling plate 102, heat insulation plate 103, and heating plate 1030. A glue retention hole 200 is provided between the two separation chambers 30. Two branch channels 105 are provided between the glue retention hole 200 and the separation chambers 30 on the lower template 2. Adjusting bolts are threaded into the two branch channels 105 to adjust the flow rate and velocity of the glue towards both ends of the separation chambers 30.

[0042] Reference Figure 2 and Figure 3 The upper template 1 and the lower template 2 have a central transverse groove 4 at the center of the lower template 2 in the width direction. The central transverse groove 4 is a through groove that runs along the length direction of the lower template 2. A central transverse beam 41 is placed in the central transverse groove 4 on the lower template 2. The central transverse groove 4 on the lower template 2 is an isosceles trapezoid that is wider at the top and narrower at the bottom. The part of the central transverse beam 41 that is inserted into the lower template 2 is also an isosceles trapezoid that is wider at the top and narrower at the bottom. The central transverse groove 4 of the upper template 1 is an isosceles trapezoid that is narrower at the top and wider at the bottom. The part above the central transverse beam 41 is also an isosceles trapezoid that is narrower at the top and wider at the bottom, so as to facilitate the placement of the central transverse beam 41.

[0043] Reference Figure 3 The middle crossbeam 41 has connecting holes 411 at both ends, and guide posts are placed in the connecting holes 411. The middle cross groove 4 of the upper template 1 has guide holes 12 at both ends to facilitate precise connection when the upper template 1 is closed with the lower template 2. The middle crossbeam 41 has two separation holes 412 located in the middle of the connecting holes 411. Separation springs 4121 are placed in the separation holes 412 to facilitate the separation of the upper template 1 and the lower template 2.

[0044] Reference Figure 3 and Figure 4The central crossbeam 41 has multiple through holes extending along its width. In this embodiment, three through holes correspond to three injection cavities 3. A connecting rod 42 is inserted into each through hole. Alternatively, there can be three sets of connecting rods 42, with one rod fixed to each side of the injection cavity 3. The ends of the connecting rods 42 are located in the injection cavities 3 on both sides of the central crossbeam 41. Each end of the connecting rod 42 is bolted to a sealing block 31 placed in the injection cavity 3, with the sealing block 31 fitting into the injection cavity 3 with a clearance. The middle of the sealing block 31 is fixed to the end of the connecting rod 42, and core modules 311 are provided on both sides of the sealing block 31. During the injection process, the core modules 311 are located at the ends of the product. The end cap 31 protrudes to both sides to form bosses 310. The bosses 310 are located around the core module 311 and have lip grooves 312. Since the lip grooves 312 are completely formed on the end cap 31 and the end cap 31 is set independently relative to the lower template 2, it is convenient to replace the end cap 31 after the lip grooves 312 are worn, so as to ensure the waterproof performance of the product.

[0045] Reference Figure 3 and Figure 4 The core module 311 has an integrally formed mounting block 313, which has a connecting hole 3131, a circular blind hole. A core mold rod 32 is inserted into the connecting hole 3131. The core mold rod 32 is a corrugated rod to facilitate the formation of a corrugated tube in the middle of the product after glue injection. The end of the core mold rod 32 has an integrally formed connecting block 321 inserted into the connecting hole 3131. The connecting block 321 is beveled to facilitate insertion into the connecting hole 3131. A limiting rod 3132 is inserted radially along the core mold rod 32, penetrating the connecting block 321. The surface of the mounting block 313 smoothly transitions to form an arc surface. The two ends of the limiting rod 3132 are cut to form transition bevels 3133. The transition bevels 3133 smoothly transition with the surface of the mounting block 313, ensuring the flatness of the inner wall of the product end.

[0046] Reference Figure 3 and Figure 4The lower template 2 has mounting slots 21 on both sides of the middle horizontal groove 4. The mounting slots 21 extend along the length of the lower template 2 and from the side wall of the lower template 2 to communicate with the injection cavity 3. An end mold connecting plate 22 is slidably connected in the width direction within the mounting slot 21. A forming ring groove 221 is formed on the side of the end mold connecting plate 22 facing the core mold rod 32. The forming ring groove 221 corresponds one-to-one with the separation chamber 30, so that a lip is also formed at the end away from the lip groove 312 during the casting process. An end beam 23 is slidably connected in the mounting slot 21 on the side of the end mold connecting plate 22 away from the middle horizontal beam 41. An end module 231 for sealing the core mold rod 32 is installed on the side of the end beam 23 facing the end mold connecting plate 22 by bolts. The end mold connecting plate 22 has through clearance holes 222 along the width direction. Each clearance hole 222 is located at the center of the lip groove 312. When the end module 231 is inserted into the clearance hole 222, the end module 231 just abuts against the end of the core mold rod 32 away from the core module 311, thereby closing the end of the core mold rod 32 away from the core module 311.

[0047] Reference Figure 4 and Figure 5 To facilitate the docking of the end module 231 and the core mold rod 32, a insertion hole 322 is provided at the end of the core mold rod 32 away from the connecting block 321. An insertion block 2311 is integrally formed at the center of the end module 231 and inserted into the insertion hole 322. The end of the insertion block 2311 is cut to form an insertion bevel 2312, allowing the insertion block 2311 to be inserted into the insertion hole 322. Dating slots 2313 are provided around the insertion block 2311 on the end module 231. When the insertion block 2311 is inserted into the dating slot, the end of the core mold rod 32 is precisely inserted into the dating slot 2313, improving the sealing performance of the end of the core mold rod 32.

[0048] Reference Figure 2 and Figure 3 The upper template 1, located on both sides of the middle transverse groove 4, also has the same mounting through grooves 21 as the lower template 2. A fixing component for fixing the end transverse beam 23 is provided on the side of the mounting through groove 21 of the upper template 1 away from the middle transverse beam 41. The fixing component includes an abutment block 141 and a locking bolt 142. The locking bolt 142 is threadedly connected to the upper template 1, thereby fixing the abutment block 141 to the upper template 1. An abutment slope 232 is provided on the side of the end transverse beam 23 facing away from the core mold rod 32. An abutment slope 1411 is provided on the surface of the abutment block 141 facing the core mold rod 32. When the upper template 1 moves downwards, the abutment slope 1411 abuts against the abutment slope 232, thereby pushing the insertion block 2311 into the insertion hole 322.

[0049] Reference Figure 2 and Figure 3During the downward movement of the abutment block 141, to ensure the accurate positioning of the abutment block 141, a positioning component is provided on the abutment block 141 to facilitate its positioning. The positioning component includes a positioning rod 151 installed on the abutment block 141 and a positioning block 152 installed at the bottom of the abutment block 141. There are two positioning rods 151 located at the ends of the abutment block 141. A positioning circular plate 1511 is integrally formed at the top of the positioning rod 151. The top of the upper template 1 has a countersunk hole 16 that matches the positioning circular plate 1511. The positioning rod 151 is inserted into the countersunk hole 16 with an interference fit. Since the heating plate 1030 is fixed together with the upper template 1, the positioning circular plate 1511 can abut against the heating plate 1030 to fix the positioning rod 151 on the upper template 1.

[0050] Reference Figure 2 and Figure 3 The positioning rod 151 has a guide arc surface 1512 at one end away from the positioning circular plate 1511. The lower template 2 has a positioning hole 24 for the positioning rod 151 to be inserted. The positioning rod 151 is inserted into the positioning hole 24, thereby positioning the abutment block 141. The positioning block 152 is bolted to the bottom of the abutment block 141. The bottom of the positioning block 152 has a guide slope. The lower template 2 has a recessed hole 25 on the upper part. The recessed hole 25 is an oblong blind hole. The bottom wall of the recessed hole 25 is bolted to a recessed block 251 that matches the positioning block 152. The positioning block 152 is inserted into the recessed block 251 under the action of the guide slope, so as to position the abutment block 141.

[0051] Reference Figure 3 and Figure 6 The middle crossbeam 41 has support blocks at both ends, and each support block is fixed with a connecting plate 5 by bolts. Both ends of the two connecting plates 5 are provided with sliding grooves 51. The end of the sliding groove 51 away from the support block is inclined downward. The ends of the end crossbeam 23 and the end mold connecting plate 22 are fixed with limit baffles 52 by bolts. The end crossbeam 23 and the end mold connecting plate 22 are fixed with rolling bearings 53 inserted in the sliding grooves 51 on the side of the limit baffles 52 away from the abutment block 141. The rolling bearings 53 are adapted to be inserted in the sliding grooves 51 and fit against the inner wall of the sliding grooves 51, thus guiding the movement of the end crossbeam 23 and the end mold connecting plate 22.

[0052] Reference Figure 6 The connecting plate 5 is located on both sides of the support block and is equipped with limit blocks 54 by bolts. The limit blocks 54 are located on the side surface of the connecting plate 5 facing the lower template 2. When the rolling bearing 53 on the end beam 23 slides in the slide groove 51 to the end of the slide groove 51, the limit baffle 52 abuts against the limit block 54, thereby restricting the position of the end beam 23.

[0053] The implementation principle of the automotive front wiring sleeve mold in this application embodiment is as follows:

[0054] During the use of the above mold, since the end-sealing block 31 and the core mold rod 32 are fixed in the injection cavity 3 by the core mold, they are not affected by the parting line generated by the closing of the upper mold plate 1 and the lower mold plate 2. Before injection, the abutment block 141 on the upper mold plate 1 abuts against the end beam 23 and presses against the end mold connecting plate 22, thereby pressing the end module 231 against one end of the core mold rod 32. Since the end-sealing block 31 and the end module 231 are set separately, the impact of the parting line when the upper mold plate 1 and the lower mold plate 2 closes on the sealing performance of the lip is reduced. At the same time, when the end-sealing block 31 and the end module 231 are worn, they can be replaced individually, thereby greatly reducing the production cost.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mold for automobile front wire-through sleeve, comprising an upper mold plate (1) and a lower mold plate (2), a plurality of glue injection cavities (3) are formed on the upper mold plate (1) and the lower mold plate (2); characterized in that: The lower mold plate (2) and the upper mold plate (1) are provided with a middle transverse groove (4), the middle transverse groove (4) of the lower mold plate (2) is provided with a middle cross beam (41), the middle cross beam (41) is provided with a plurality of connecting rods (42) inserted in the glue injection cavity (3) along the width direction, the end of each connecting rod (42) is provided with an end block (31) for placing in the glue injection cavity (3), the both sides of the end block (31) are provided with a core module (311) in gap cooperation with the glue injection cavity (3), the end block (31) is provided with a lip groove (312) around the core module (311), the core module (311) is provided with a core mold rod (32), the lower mold plate (2) is provided with an end module (231) for blocking the end of the core mold rod (32) away from the core module (311) on both sides of the middle transverse groove (4); the lower mold plate (2) is provided with a mounting through groove (21) on both sides of the middle transverse groove (4) in communication with the glue injection cavity (3), the mounting through groove (21) is slidably connected with an end module connecting plate (22) along the length direction of the core mold rod (32), the end module connecting plate (22) is provided with a gap hole (222) for inserting the end module (231), the side of the end module connecting plate (22) facing the core mold rod (32) is provided with a forming ring groove (221), the lower mold plate (2) is provided with an end cross beam (23) for fixing the end module (231) on the side of the end module connecting plate (22) away from the core mold rod (32), the upper mold plate (1) is provided with a fixing assembly for fixing the end cross beam (23) on the side of the end cross beam (23) away from the core mold rod (32); the both ends of the middle cross beam (41) are provided with supporting blocks, the supporting blocks are fixedly provided with connecting plates (5), the both ends of the connecting plates (5) are provided with sliding grooves (51), the end of the sliding groove (51) away from the middle cross beam (41) is downwardly inclined, the both ends of the end cross beam (23) and the end module connecting plate (22) are respectively provided with rolling bearings (53) inserted in the sliding grooves (51).

2. The automotive front wire sleeve mold of claim 1, wherein: The fixing assembly comprises an abutting block (141) arranged below the upper mold plate (1) and a locking bolt (142) for fixing the abutting block (141) on the upper mold plate (1), the side of the end cross beam (23) away from the core mold rod (32) is provided with an abutting inclined surface (232), the side of the abutting block (141) facing the core mold rod (32) is provided with an abutting inclined surface (1411) for abutting the abutting inclined surface (232), the abutting block (141) is provided with a positioning assembly for positioning the abutting block (141).

3. The automotive front wire pull-through grommet mold of claim 2, wherein: The positioning assembly comprises a positioning rod (151) arranged on the abutting block (141) and a positioning block (152) arranged on the bottom surface of the abutting block (141), the lower mold plate (2) is provided with a positioning hole (24) for the positioning rod (151) to pass through, the end of the positioning rod (151) is provided with a guide camber (1512), the lower mold plate (2) is provided with a sunken hole (25), the sunken hole (25) is provided with a recessed block (251) matched with the positioning block (152), and the positioning block (152) is provided with a guide inclined surface for facilitating insertion into the recessed block (251).

4. The automotive front wire sleeve mold of claim 3, wherein: The end of the positioning rod (151) away from the guide camber (1512) is provided with a positioning circular plate (1511), the upper mold plate (1) is provided with a countersunk hole (16), the positioning rod (151) is in interference fit with the countersunk hole (16), and the top of the upper mold plate (1) is provided with a heating plate (1030) abutting against the positioning circular plate (1511).

5. The automotive front wire pull-through grommet mold of claim 1, wherein: The two ends of the end beam (23) and the end mold connecting plate (22) are respectively provided with limiting baffle plates (52), the limiting baffle plates (52) are used for limiting the positions of the end beam (23) and the end mold connecting plate (22), and the side surface of the connecting plate (5) facing the lower mold plate (2) is provided with limiting blocks (54) used for abutting against the limiting baffle plates (52).

6. The automotive front wire pull-through grommet mold of claim 1, wherein: The core mold block (311) is provided with a mounting block (313), the mounting block (313) is provided with a connecting hole (3131), the end of the core mold rod (32) is provided with a connecting block (321) matched with the connecting hole (3131), the connecting block (321) is inserted with a limiting rod (3132) passing through the mounting block (313), and the two ends of the limiting rod (3132) are provided with transition inclined surfaces (3133) used for abutting against the surface of the mounting block (313).

7. The automotive front wire pull-through grommet mold of claim 6, wherein: The end of the core mold rod (32) away from the connecting block (321) is provided with a plug-in hole (322), the end mold block (231) is provided with a plug-in block (2311) inserted into the plug-in hole (322), the plug-in block (2311) is provided with a plug-in inclined surface (2312) facilitating insertion into the plug-in hole (322), and the surface of the end mold block (231) is provided with a butt joint slot (2313) facilitating insertion of the core mold rod (32).

8. The automotive front wire pull-through grommet mold of claim 1, wherein: The two ends of the middle beam (41) are provided with butt joint holes (411), the butt joint holes (411) are provided with guide columns, the upper mold plate (1) is provided with guide holes (12) for the guide columns to be inserted, the middle beam (41) is provided with a separation hole (412) in the middle of the butt joint holes (411), and the separation hole (412) is provided with a separation spring (4121).

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