Injection mold for stay wire bracket of automobile door lock

Abstract

The utility model relates to the technical field of automobile part injection molding, in particular to an automobile door lock stay wire support injection mold which comprises an upper mold plate, a lower mold base and a lateral core-pulling assembly, and the lateral core-pulling assembly comprises a first inclined top shaft arranged on an upper mold core and a first insert arranged on a lower mold core. The first insert and the lower mold core are matched and combined to form a second cavity formed in the vertical direction, a moving block is arranged on the first insert and provided with an obliquely-formed moving groove, a core rod penetrating through the mounting hole is arranged in the moving groove in a sliding mode, and the depth of the moving groove is gradually reduced in the moving-out direction of the first insert. The first insert corresponding to the automobile door lock stay wire support in the vertical direction is arranged, meanwhile, the core rod is in sliding connection with the moving block on the first insert, and the moving groove in the moving block is obliquely formed, so that when the first insert is subjected to outward core pulling, the core rod moves downwards along the moving groove at the same time, core pulling of the core rod is completed, and simultaneous core pulling of the first insert and the core rod is achieved; and the core pulling step is reduced, so that the mold opening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts injection molding technology, specifically to an injection mold for an automotive door lock cable bracket. Background Technology

[0002] With the rapid development of the automotive industry, competition in the current automotive market is becoming increasingly fierce. Consumers are also placing higher demands on the safety and quality of automobiles. Car door locks are an important component of the car body, and most cars now use cable-operated connections, which requires brackets to secure the cables.

[0003] like Figure 1 The car door lock cable bracket shown has a special shape, requiring an insert to be installed in the mold core during injection molding to complete the vertical injection of the bracket. Furthermore, during mold opening, the insert needs to be pulled horizontally. However, due to the presence of a circular hole on the horizontal surface of the car door lock cable bracket, the injection mold also has a mandrel on the horizontal surface for injecting the hole. Pulling the mandrel requires a vertical direction, and the pulling direction of the mandrel differs from that of the insert. This necessitates pulling the insert and mandrel separately, making the process cumbersome and reducing mold opening efficiency. Utility Model Content

[0004] The technical solution adopted by this utility model to solve its technical problem is: to provide an injection mold for an automotive door lock cable bracket, comprising:

[0005] Upper template, wherein an upper mold core is provided on the upper template;

[0006] The lower mold base is provided with a lower template, and the lower template is provided with a lower mold core. The lower mold core and the upper mold core are provided with a matching sprue and a cavity 1. The cavity 1 is arranged in a horizontal direction. The lower mold core is also provided with a mounting hole corresponding to the round hole on the car door lock cable bracket.

[0007] A side-pulling core assembly includes an inclined ejector shaft on the upper mold core and an insert on the lower mold core. The insert has a sliding groove adapted to the inclined ejector shaft, through which the inclined ejector shaft passes. The insert slides horizontally on the lower mold core, and the insert and the lower mold core cooperate to form a cavity. The cavity is vertically oriented. The insert has a moving block corresponding to a mounting hole. The moving block has an inclined moving groove, in which a mandrel slides. The mandrel passes through the mounting hole. The depth of the moving groove gradually decreases along the moving direction of the insert. The inclined ejector shaft drives the insert to slide on the lower mold core.

[0008] Further, the side core-pulling assembly further comprises an inclined ejector pin two arranged on the upper die core and an insert two arranged on the lower die core, the insert two is provided with sliding grooves two matched with the inclined ejector pin two, the inclined ejector pin two penetrates through the sliding grooves two, the insert two is arranged on the lower die core in a horizontal direction, the insert two and the lower die core are matched to form a third cavity, the third cavity is arranged in a vertical direction, and the third cavity is perpendicular to the second cavity.

[0009] Further, the upper die plate is provided with a positioning block, the positioning block is provided with a bearing groove, and the bearing groove is matched with the insert one, the insert two and the lower die core.

[0010] Further, the upper die plate is provided with an injection hole, a main runner is arranged between the injection hole and the upper die core, the first cavity and the second cavity are communicated with the sub-runner, and the sub-runner is in airtight communication with the main runner and the injection hole.

[0011] Further, the cooling assembly comprises a water inlet pipe one and a water outlet pipe one arranged on the upper die plate, and a water inlet pipe two and a water outlet pipe two arranged on the lower die plate, the upper die plate and the upper die core are provided with a water inlet hole one corresponding to the water inlet pipe one and a water outlet hole one corresponding to the water outlet pipe one, the lower die plate and the lower die core are provided with a water inlet hole two corresponding to the water inlet pipe two and a water outlet hole two corresponding to the water outlet pipe two, the upper die core is provided with a conveying channel one communicated with the water inlet hole one and the water outlet hole one, and the lower die core is provided with a conveying channel two communicated with the water inlet hole two and the water outlet hole two, the water inlet pipe one, the water outlet pipe one, the water inlet pipe two and the water outlet pipe two are communicated with a mold cooling system.

[0012] Further, the ejector pin assembly comprises a driving member arranged on the lower die base, an ejector pin plate arranged at an output end of the driving member, and a plurality of ejector pins arranged on the ejector pin plate, the ejector pins penetrate through the lower die plate and the lower die core and are in contact with the automobile door lock pull wire support, and the driving member is used to drive the ejector pin plate to drive the ejector pins to pull out the automobile door lock pull wire support from the lower die core.

[0013] Further, the in-mold hot cutting assembly comprises a hydraulic oil cylinder arranged on the lower die core and a cutting knife arranged at an output end of the hydraulic oil cylinder, the lower die core is provided with a cutting groove corresponding to the sub-runner and the automobile door lock pull wire support, and the hydraulic oil cylinder is used to drive the cutting knife to cut off the runner.

[0014] The utility model discloses an automobile door lock pull wire support injection mold, including upper die plate, lower mould base, lateral core-pulling assembly, lateral core-pulling assembly includes the inclined jacking shaft no. 1 of setting on the upper die, and the insert no. 1 of setting on the lower die, and the insert no. 1 and lower die are matched and combined to form the cavity no. 2 along the vertical direction setting, be equipped with the moving block on the insert no. 1, the moving block is equipped with the oblique setting of moving groove, the core rod of passing through the installation hole is slidably arranged in the moving groove, and the groove depth of moving groove gradually reduces along the removal direction of insert no. 1. Through setting and the insert no. 1 of automobile door lock pull wire support vertical direction corresponding, simultaneously, the core rod and the moving block on the insert no. 1 sliding connection, the oblique setting of moving groove on moving block makes the insert no. 1 when core-pulling outward, the core rod is removed along moving groove downward simultaneously, to make the core rod complete core-pulling, realize the core-pulling of insert no. 1 and core rod simultaneously, reduces the core-pulling step, makes the opening die efficiency improve. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in connection with the drawings and examples.

[0016] In the drawings: Figure 1 It is the three-dimensional structure diagram of automobile door lock pull wire support in the background art;

[0017] Figure 2 It is the overall structural drawing of automobile door lock pull wire support injection mold provided by the utility model example;

[0018] Figure 3 It is Figure 1 The automobile door lock pull wire support injection mold explosion chart shown in the figure;

[0019] Figure 4 It is Figure 1 The automobile door lock pull wire support injection mold another perspective explosion chart shown in the figure;

[0020] Figure 5 It is Figure 1 The three-dimensional structure diagram of partial structure shown in the figure;

[0021] Figure 6 It is Figure 3 The further explosion chart of partial structure shown in the figure.

[0022] Explanation of reference signs: 100, automobile door lock pull cable support injection mold; 10, upper mold plate; 11, upper mold core; 12, positioning block; 121, bearing groove; 13, injection hole; 14, main gate; 15, water inlet hole one; 16, water outlet hole one; 20, lower mold base; 21, lower mold plate; 211, water inlet hole two; 212, water outlet hole two; 213, containing groove; 22, lower mold core; 221, mounting hole; 223, cutting groove; 23, sub-gate; 24, cavity one; 25, guide column; 30, side core-pulling assembly; 31, inclined ejector pin one; 32, insert one; 321, sliding groove one; 322, moving block; 323, moving groove; 324, core rod; 33, cavity two; 34, inclined ejector pin two; 35, insert two; 351, sliding groove two; 36, cavity three; 40, cooling assembly; 41, water inlet pipe one; 42, water outlet pipe one; 43, water inlet pipe two; 44, water outlet pipe two; 50, ejector pin assembly; 51, ejector pin plate; 52, ejector pin; 60, in-mold hot cutting assembly; 61, hydraulic oil cylinder; 62, cutter; 63, oil delivery pipe; 200, automobile door lock pull cable support; 201, round hole. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be described in detail with reference to the drawings. The drawing is a simplified schematic diagram, which only schematically illustrates the basic features of the present application, and therefore only shows the structures related to the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-6 The present embodiment provides an upper mold plate 10, a lower mold base 20, and a side core-pulling assembly 30. During injection molding, the automobile door lock pull cable support injection mold 100 cooperates with an injection molding machine.

[0025] Specifically, in the present embodiment, the thickness direction of the automobile door lock pull cable support injection mold 100 shown in the drawing is the vertical direction, and the end face of the automobile door lock pull cable support injection mold 100 is the horizontal plane.

[0026] The upper mold plate 10 is provided with an upper mold core 11, the lower mold base 20 is provided with a lower mold plate 21, the lower mold plate 21 is provided with a lower mold core 22, the lower mold core 22 and the upper mold core 11 are provided with a sub-gate 23 and a cavity one 24 that cooperate with each other, the cavity one 24 is arranged along the horizontal direction, and the lower mold core 22 is further provided with a mounting hole 221 corresponding to a round hole 201 on the automobile door lock pull cable support 200.

[0027] The lateral core-pulling assembly 30 comprises a first inclined ejector pin 31 arranged on the upper die core 11 and a first insert 32 arranged on the lower die core 22, the first insert 32 is provided with a sliding groove 321 matched with the first inclined ejector pin 31, the first inclined ejector pin 31 passes through the sliding groove 321, the first insert 32 is arranged on the lower die core 22 in a horizontal sliding manner, the first insert 32 and the lower die core 22 are combined to form a second cavity 33, the second cavity 33 is arranged in a vertical direction, the first insert 32 is provided with a moving block 322 corresponding to the mounting hole 221, the moving block 322 is provided with a moving groove 323 arranged obliquely, a core rod 324 is arranged in the moving groove 323 in a sliding manner, the core rod 324 passes through the mounting hole 221, the depth of the moving groove 323 gradually decreases along the moving direction of the first insert 32, and the first inclined ejector pin 31 is used to drive the first insert 32 to slide on the lower die core 22. Specifically, the core rod 324 is arranged in a vertical direction, the first inclined ejector pin 31 is arranged obliquely, and the end of the first inclined ejector pin 31 close to the lower die core 22 is farther away from the central axis of the upper die plate 10 than the end of the first inclined ejector pin 31 away from the lower die core 22.

[0028] By arranging the first insert 32 corresponding to the vertical direction of the automobile door lock pull cable support 200, and by arranging the core rod 324 and the moving block 322 on the first insert 32 in a sliding connection, and by arranging the moving groove 323 on the moving block 322 obliquely, when the first insert 32 pulls out the core, the core rod 324 moves downward along the moving groove 323 at the same time, so that the core rod 324 completes the core-pulling, the simultaneous core-pulling of the first insert 32 and the core rod 324 is realized, the core-pulling steps are reduced, and the mold opening efficiency is improved.

[0029] Further, the lateral core-pulling assembly 30 further comprises a second inclined ejector pin 34 arranged on the upper die plate 11 and a second insert 35 arranged on the lower die core 22, the second insert 35 is provided with a second sliding groove 351 matched with the second inclined ejector pin 34, the second inclined ejector pin 34 passes through the second sliding groove 351, the second insert 35 is arranged on the lower die core 22 in a horizontal sliding manner, the second insert 35 and the lower die core 22 are combined to form a third cavity 36, the third cavity 36 is arranged in a vertical direction, the third cavity 36 and the second cavity 33 are perpendicular to each other, the second cavity 33 is arranged along the width direction of the lower die core 22, and the third cavity 36 is arranged along the length direction of the lower die core 22.

[0030] The upper die plate 10 is provided with a positioning block 12, the positioning block 12 is provided with a bearing groove 121, the bearing groove 121 abuts against the first insert 32 and the lower die core 22, and the positioning block 12 is arranged to limit the first insert 32 and the lower die core 22 after the upper die plate 10 is pressed down, so that the lower die core 22 and the first insert 32 are not easy to deviate during injection molding, and the injection molding process is not affected.

[0031] The upper die plate 10 is provided with an injection hole 13, and the injection hole 13 and the upper die core 11 are provided with a main runner 14, the cavity one 24 and the cavity two 33 are communicated with the sub-runner 23, and the sub-runner 23 is in airtight communication with the main runner 14 and the injection hole 13.

[0032] During injection molding, the injection molding machine injects molten glue into the injection hole 13, and the molten glue flows into the cavity one 24, the cavity two 33 and the cavity three 36 along the main runner 14 and the sub-runner 23 in turn.

[0033] The automobile door lock pull wire support injection mold 100 further comprises a cooling assembly 40, the cooling assembly 40 comprises a water inlet pipe one 41 and a water outlet pipe one 42 arranged on the upper die plate 10, a water inlet pipe two 43 and a water outlet pipe two 44 arranged on the lower die plate 21, and the upper die plate 10 and the upper die core 11 are provided with a water inlet hole one 15 corresponding to the water inlet pipe one 41 and a water outlet hole one 16 corresponding to the water outlet pipe one 42, and the lower die plate 21 and the lower die core 22 are provided with a water inlet hole two 211 corresponding to the water inlet pipe two 43 and a water outlet hole two 212 corresponding to the water outlet pipe two 44, and the upper die core 11 is provided with a conveying channel one in communication with the water inlet hole one 15 and the water outlet hole one 16, and the lower die core 22 is provided with a conveying channel two in communication with the water inlet hole two 211 and the water outlet hole two 212. Specifically, the conveying channel one and the conveying channel two are not shown in the figure. The mold cooling system is a prior art, and will not be described in detail in this embodiment. The water in the mold cooling system flows back to the mold cooling system through the water outlet pipe one 42 and the water outlet pipe two 44 after cooling the automobile door lock pull wire support 200 by inputting the upper die core 11 and the lower die core 22.

[0034] The automobile door lock pull wire support injection mold 100 further comprises a ejector assembly 50, the ejector assembly 50 comprises a driving member arranged on the lower die seat 20, a ejector plate 51 arranged on the output end of the driving member, and a plurality of ejector pins 52 arranged on the ejector plate 51, the ejector pins 52 pass through the lower die plate 21 and the lower die core 22 and are in contact with the automobile door lock pull wire support 200, and the driving member is used to drive the ejector plate 51 to drive the ejector pins 52 to eject the automobile door lock pull wire support 200 from the lower die core 22. The lower die seat 20 is provided with a guide column 25 matched with the ejector plate 51, and the driving member drives the ejector plate 51 to slide on the guide column 25. Specifically, in this embodiment, the driving member is selected as a pneumatic cylinder, and the driving member is connected to the injection molding machine, and the driving member and the injection molding machine are not shown.

[0035] After the injection molding is completed, the cooling water in the mold cooling system is extracted into the upper mold plate 10 and the lower mold plate 21 through the water inlet pipe one 41 and the water inlet pipe two 43 respectively, and then into the conveying channel one and the conveying channel two respectively, to cool the automobile door lock pull wire bracket 200 after the injection molding is completed. The cooling water is then returned to the mold cooling system through the water outlet pipe one 42 and the water outlet pipe two 44 respectively. After cooling is completed, the injection molding machine controls the upper mold plate 10 and the upper mold core 11 to move away, the driving member drives the ejector pin 52 to move upward until the automobile door lock pull wire bracket 200 is separated from the lower mold core 22, and then the automobile door lock pull wire bracket 200 is taken away.

[0036] The automobile door lock pull wire bracket injection mold 100 further comprises an in-mold hot cutting assembly 60, which comprises a hydraulic oil cylinder 61 arranged on the lower mold core 22 and a cutting knife 62 arranged at the output end of the hydraulic oil cylinder 61, and an oil delivery pipe 63 arranged on the hydraulic oil cylinder 61. The lower mold core 22 is provided with a cutting groove 223 corresponding to the connection between the sprue 23 and the automobile door lock pull wire bracket 200. The hydraulic oil cylinder 61 is used to drive the cutting knife 62 to cut off the sprue.

[0037] Specifically, the lower mold plate 21 is provided with a containing groove for containing the hydraulic oil cylinder 61, and the cavity one 24, the cavity two 33 and the cavity three 36 are each provided with two, which can simultaneously inject two automobile door lock pull wire brackets 200. The cutting groove 223 and the hydraulic oil cylinder 61 are each provided with two, corresponding to the connection between the two automobile door lock pull wire brackets 200 and the sprue, and the oil paths corresponding to the two hydraulic oil cylinders 61 are only partially shown in the figure as the oil delivery pipe 63.

[0038] After the injection molding is completed, the two hydraulic oil cylinders 61 control the corresponding cutting knives 62 to rise through the corresponding cutting grooves 223, so as to cut off the sprue in the sprue 23.

Claims

1. An injection mold for an automotive door lock cable bracket, characterized in that, The utility model relates to a mould for automobile door lock pull cable bracket, which comprises: an upper die plate provided with an upper die core; a lower die base provided with a lower die plate, the lower die plate being provided with a lower die core, the lower die core and the upper die core being provided with a split runner and a cavity one matched with each other, the cavity one being arranged in a horizontal direction, the lower die core being further provided with a mounting hole corresponding to an upper circular hole of the automobile door lock pull cable bracket; a side core-pulling assembly, which comprises an inclined ejector pin one arranged on the upper die core and an insert one arranged on the lower die core, the insert one being provided with a sliding groove one matched with the inclined ejector pin one, the inclined ejector pin one penetrating through the sliding groove one, the insert one being arranged on the lower die core in a horizontal sliding manner, the insert one and the lower die core being combined to form a cavity two in a vertical direction, the insert one being provided with a moving block corresponding to the mounting hole, the moving block being provided with a moving groove arranged in an inclined manner, a core rod being arranged in the moving groove in a sliding manner, the core rod penetrating through the mounting hole, the depth of the moving groove gradually decreasing in the direction of the insert one moving out, and the inclined ejector pin one being used to drive the insert one to slide on the lower die core.

2. The injection mold for an automobile door lock cable bracket according to claim 1, characterized in that: The side core-pulling assembly further comprises an inclined ejector pin two arranged on the upper die core and an insert two arranged on the lower die core, the insert two being provided with a sliding groove two matched with the inclined ejector pin two, the inclined ejector pin two penetrating through the sliding groove two, the insert two being arranged on the lower die core in a horizontal sliding manner, the insert two and the lower die core being combined to form a cavity three in a vertical direction, the cavity three being perpendicular to the cavity two.

3. The injection mold for an automobile door lock cable bracket according to claim 2, characterized in that: The upper die plate is provided with a positioning block, the positioning block being provided with a resisting groove, the resisting groove being in abutment with the insert one, the insert two and the lower die core.

4. The injection mold for a door lock pull cable bracket of claim 1, wherein: The upper die plate is provided with an injection hole, a main runner being arranged between the injection hole and the upper die core, the cavity one and the cavity two being communicated with the split runner, and the split runner being in airtight communication with the main runner and the injection hole.

5. The injection mold for an automobile door lock cable bracket according to claim 1, characterized in that: The utility model further comprises a cooling assembly, which comprises a water inlet pipe one and a water outlet pipe one arranged on the upper die plate, a water inlet pipe two and a water outlet pipe two arranged on the lower die plate, the upper die plate and the upper die core being provided with a water inlet hole one corresponding to the water inlet pipe one and a water outlet hole one corresponding to the water outlet pipe one, the lower die plate and the lower die core being provided with a water inlet hole two corresponding to the water inlet pipe two and a water outlet hole two corresponding to the water outlet pipe two, the upper die core being provided with a conveying channel one communicated with the water inlet hole one and the water outlet hole one, and the lower die core being provided with a conveying channel two communicated with the water inlet hole two and the water outlet hole two, the water inlet pipe one, the water outlet pipe one, the water inlet pipe two and the water outlet pipe two being communicated with a mould cooling system.

6. The injection mold for an automobile door lock cable bracket according to claim 1, characterized by: The ejector pin assembly comprises a driving member arranged on the lower die base, an ejector pin plate arranged at the output end of the driving member, and a plurality of ejector pins arranged on the ejector pin plate, the ejector pins penetrating through the lower die plate and the lower die core and contacting the automobile door lock pull cable support, and the driving member is used to drive the ejector pin plate to drive the ejector pins to pull out the automobile door lock pull cable support from the lower die core.

7. The injection mold for an automobile door lock cable bracket according to claim 1, characterized by: The in-mold hot cutting assembly comprises a hydraulic oil cylinder arranged on the lower die core and a cutting knife arranged at the output end of the hydraulic oil cylinder, the lower die core is provided with a cutting groove, the cutting groove corresponds to the position between the sprue bushing and the automobile door lock pull cable support, and the hydraulic oil cylinder is used to drive the cutting knife to cut off the sprue.

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