Injection mold of windshield fixing support

Abstract

The invention relates to the field of molds, in particular to an injection mold for a windshield fixing support, the injection mold comprises an upper mold base, a lower mold base and a core pulling assembly, the upper mold base is slidably connected to the lower mold base, the upper mold base and the lower mold base are closed to form a cavity for injection molding, the cavity is used for allowing a metal insert to be embedded in, and a sliding cavity is formed in the cavity wall of the cavity of the lower mold base; the core pulling assembly comprises a core pulling block and an inclined guide column, the core pulling block is embedded in the sliding cavity in a sliding mode, a guide hole is formed in the core pulling block, the end, away from the upper die base, of the guide hole is obliquely arranged in the direction away from the cavity, one end of the inclined guide column is connected to the upper die base, and the other end of the inclined guide column is used for being embedded in the guide hole. The cavity is formed by the upper die base, the lower die base and the core-pulling assembly, and the metal insert is pre-placed at the designated position in the cavity, so that when raw materials are cooled, fixed connection of the insert and the support body is automatically achieved, damage to the support body caused when a worker inserts the metal insert into a mounting groove subsequently is reduced, product loss is reduced, and production efficiency is improved. The production efficiency of the fixing bracket is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of molds, in particular to an injection mold of a windshield fixing support. BACKGROUND

[0002] The existing windshield fixing support is a plastic part. In order to realize the connection between the fixing support and the vehicle frame or windshield, threaded holes are usually pre-set at various positions of the fixing support. However, due to the low structural strength of the plastic part, the threads at the threaded holes are easily worn after multiple disassembly and assembly.

[0003] Reference Figure 1 and Figure 2 In the prior art, the fixing support 01 includes a support body 011 made of plastic and a metal insert 012. Installation grooves 0111 are provided at various positions of the support body 011, and the metal insert 012 is embedded in the installation grooves 0111 to improve the structural strength of the connection between the fixing support 01 and other components. The metal insert 012 is divided into an iron insert 0121 and a copper insert 0122 according to the material.

[0004] In the prior art, when the metal insert 012 is installed, the staff embeds the metal insert 012 into the installation grooves 0111 of the support body 011 by using the elasticity of the support body 011, thereby completing the assembly of the metal insert 012. However, the staff is easy to cause damage to the support body 011 during the process of embedding the metal insert 012 into the installation grooves 0111, which causes waste of products and affects the production efficiency of the fixing support 01. SUMMARY

[0005] In order to improve the production efficiency of the fixing support, the present application provides an injection mold of a windshield fixing support.

[0006] The injection mold of a windshield fixing support provided by the present application adopts the following technical scheme: An injection mold of a windshield fixing support, comprising an upper mold base, a lower mold base, and a core-pulling assembly, the upper mold base is slidably connected to the lower mold base, the upper mold base and the lower mold base are closed to form a cavity for injection molding, the cavity is used for embedding a metal insert, a sliding cavity is provided at the cavity wall of the lower mold base, the core-pulling assembly comprises a core-pulling block and an inclined guide column, the core-pulling block is slidably embedded in the sliding cavity, the core-pulling block is provided with a guide hole, one end of the guide hole away from the upper mold base is inclinedly arranged in a direction away from the cavity, one end of the inclined guide column is connected to the upper mold base, the axis of the inclined guide column is parallel to the axis of the guide hole, and the other end of the inclined guide column is used for embedding in the guide hole.

[0007] By adopting the technical scheme, the upper die seat, the lower die seat and the core pulling assembly are used to form a cavity, and the metal insert is pre-placed in a specified position in the cavity, so that the fixed connection between the insert and the support body is automatically realized when the raw material cools down, the damage of the support body caused by the subsequent staff embedding the metal insert into the mounting groove is reduced, the product consumption is reduced, and the production efficiency of the fixed support is improved.

[0008] Preferably, the ejection mechanism further includes a mounting plate, an ejector rod and an ejection driving cylinder, the mounting plate is slidingly connected to the lower die seat, the sliding direction of the mounting plate is parallel to the clamping direction of the upper die seat and the lower die seat, the cavity wall of the lower die seat is uniformly provided with a plurality of ejection grooves, the number of the ejector rods is the same as and corresponds to the number of the ejection grooves, the ejector rods are slidingly embedded in the ejection grooves, one end of the ejector rod is connected to the mounting plate, and the other end of the ejector rod is used to extend into the cavity.

[0009] By adopting the technical scheme, the ejection mechanism is provided, the ejector rod moves along the clamping direction of the upper die seat and the lower die seat under the driving of the ejection driving cylinder, the injection-molded windshield fixed support is ejected from the cavity, the convenience of taking out the molded product is improved, and the production efficiency of the fixed support is improved.

[0010] Preferably, the ejection mechanism further includes an anti-collision column, the lower die seat is provided with a communication hole, the anti-collision column is slidingly embedded in the communication hole, one end of the anti-collision column is connected to the mounting plate, and the other end of the anti-collision column is used to abut against the upper die seat.

[0011] By adopting the technical scheme, when the ejector rod is not retracted, a gap is left between the cavity wall of the upper die seat and the ejector rod when the upper die seat collides with the anti-collision column during the clamping of the upper die seat and the lower die seat, the possibility of collision between the ejector rod and the cavity wall is reduced, the anti-collision column abuts against the upper die seat when the upper die seat and the lower die seat are not separated, the sliding of the ejector rod is hindered, the extension of the ejector rod into the cavity does not affect the cooling and molding of the product, the production efficiency of the windshield fixed support is improved, and the service life of the mold is improved.

[0012] Preferably, the cavity wall of the upper die seat is connected with a first mounting column, the number of the first mounting column is the same as and corresponds to the number of the iron inserts, the iron inserts are nested outside the first mounting column, the cavity wall of the upper die seat is connected with a second mounting column, the side close to the cavity of the core pulling block is connected with a third mounting column, the sum of the number of the second mounting column and the third mounting column is the same as and corresponds to the number of the copper inserts, and the copper inserts are nested outside the second mounting column or the third mounting column.

[0013] By adopting the technical scheme, the first mounting column, the second mounting column and the third mounting column realize positioning of the metal insert, reduce the possibility of displacement of the metal insert during clamping of the upper mold base and the lower mold base or during injection molding, improve the yield of products, and improve the production efficiency of the fixed support.

[0014] Preferably, the limiting assembly also includes a limiting component, the limiting component is an air bag, the air bag is connected to the first mounting column, the second mounting column or the third mounting column, and the air bag is used to abut against the inner wall of the metal insert to realize relative fixation between the metal insert and the first mounting column, the second mounting column or the third mounting column.

[0015] By adopting the technical scheme, in order to ensure that the first mounting column, the second mounting column and the third mounting column can be smoothly separated from the metal insert after the product is cooled and formed, the metal insert and the first mounting column, the second mounting column or the third mounting column are connected in a clearance fit, so that the metal insert has a possibility of displacement under the action of gravity during clamping of the upper mold base and the lower mold base, the air bag is expanded or contracted to realize fixed connection or release of fixation between the metal insert and the first mounting column, the second mounting column or the third mounting column, the possibility of displacement of the metal insert during clamping is reduced, and the reliability of the mold is improved.

[0016] Preferably, the limiting assembly also includes an abutting piece, a first reset piece and a sliding plate, the upper mold base or the core-pulling block is provided with a sliding groove, the number of the sliding grooves is the same as and one-to-one corresponds to the number of the limiting assemblies, the sliding plate is embedded in the sliding groove, the abutting piece is slidingly embedded in the sliding groove, the sliding direction of the abutting piece is parallel to the axial direction of the first mounting column, the second mounting column or the third mounting column, the abutting piece is located on the side of the sliding plate close to the cavity, a connecting channel is arranged at the groove wall of the sliding groove, the connecting channel is connected in communication with the air bag, the connection between the connecting channel and the sliding groove is located between the abutting piece and the sliding plate, a communication groove is arranged at the groove wall of the sliding groove close to the cavity, the end of the abutting piece away from the sliding plate penetrates through the communication groove and extends into the cavity, the end of the abutting piece away from the sliding plate is used to abut against the iron insert or the copper insert, and the first reset piece is connected between the abutting piece and the upper mold base or the core-pulling block.

[0017] By adopting the technical scheme, when the metal insert is installed, the metal insert abuts against the abutting piece, the abutting piece is slidingly pushed, air in the sliding groove is pressed into the air bag through the connecting channel, the air bag is expanded, and fixed connection between the metal insert and the first mounting column, the second mounting column or the third mounting column is realized.

[0018] Preferably, the limiting assembly further comprises a power block, a moving contact and a stationary contact, the limiting component at the first mounting column is an electromagnetic ring, the first mounting column is provided with a first ring cavity, the electromagnetic ring is embedded in the first ring cavity, the electromagnetic ring is used for adsorbing an iron insert, the power block is connected to the upper die seat, the power block provides power for the electromagnetic block, the stationary contact is connected to one side of the slide plate close to the abutting piece, the moving contact is connected to one side of the abutting piece close to the slide plate, the stationary contact and the moving contact are electrically connected with the power block and the electromagnet, when the end of the abutting piece away from the slide plate is embedded in the communication groove, the stationary contact and the moving contact abut, the electromagnet is powered to adsorb the iron insert.

[0019] By adopting the above technical scheme, when the iron insert is installed in place, the moving contact and the stationary contact abut, the power block supplies power for the electromagnetic ring, the electromagnetic ring generates magnetic force to adsorb the iron insert, the stability of the connection between the iron insert and the first mounting column is improved, and the reliability of the mold is improved.

[0020] Preferably, the limiting assembly further comprises a second reset member, a heat expansion block, a first locking block, a third reset member, a second locking block and a fourth reset member, the sliding plate is slidably embedded in the sliding groove, the sliding direction of the sliding plate is parallel to the sliding direction of the abutting member, the second reset member is connected between the sliding plate and the upper die seat or the core pulling block, the second reset member makes the first sliding plate have a tendency to approach the cavity, the heat expansion block is connected to the upper die seat, the heat expansion block is used to push the sliding plate to slide away from the cavity, the sliding groove wall is provided with a first connecting groove, the first locking block is slidably embedded in the first connecting groove, the sliding direction of the first locking block is perpendicular to the sliding direction of the sliding plate, the third reset member is connected between the first locking block and the upper die seat or the core pulling block, the third reset member makes the first locking block have a tendency to approach the first sliding groove, the side of the first locking block close to the first sliding groove is connected with a first embedding block and a second embedding block, the first embedding block is located at the side of the second embedding block close to the cavity, the side wall of the first abutting member is provided with a first embedding groove, the first embedding groove is used for embedding the first embedding block, one end of the first embedding block close to the first sliding groove is provided with a first chamfer, the first chamfer is located at the side of the first embedding block close to the cavity, the first chamfer is used to abut against the first abutting member, one end of the second embedding block close to the first sliding groove is provided with a second chamfer, the second chamfer is located at the side of the second embedding block close to the cavity, the second chamfer is used to abut against the sliding plate, when the end of the abutting member away from the sliding plate is embedded in the communicating groove, the first embedding block is embedded in the first embedding groove, the second embedding block is located at the side of the sliding plate away from the abutting member, the sliding groove wall is provided with a second connecting groove, the second locking block is slidably embedded in the second connecting groove, the sliding direction of the second locking block is perpendicular to the sliding direction of the sliding plate, the fourth reset member is connected between the second locking block and the upper die seat, the fourth reset member makes the second locking block have a tendency to approach the sliding groove, the side of the second locking block close to the sliding groove is connected with a third embedding block and a fourth embedding block, the third embedding block is located at the side of the fourth embedding block close to the cavity, the side wall of the sliding plate is provided with a second embedding groove, the second embedding groove is used for embedding the fourth embedding block, one end of the third embedding block close to the sliding groove is provided with a third chamfer, the third chamfer is located at the side of the third embedding block away from the cavity, the third chamfer is used to abut against the abutting member, one end of the fourth embedding block close to the sliding groove is provided with a fourth chamfer, the fourth chamfer is located at the side of the fourth embedding block close to the cavity, the fourth chamfer is used to abut against the sliding plate, when the end of the abutting member away from the sliding plate is embedded in the first communicating groove, the third embedding block is located at the side of the first abutting member away from the first sliding plate, the third embedding block and the fourth embedding block extend into the sliding groove.

[0021] When the metal insert is nested outside the periphery of the first mounting column, the second mounting column or the third mounting column, the metal insert abuts against the abutting piece, pushes the abutting piece to slide, the abutting piece abuts against the first chamfer, pushes the first embedded block to slide, when the metal insert is installed in place, the first embedded block is embedded into the first embedded groove, the fixed connection between the abutting piece and the upper die seat or the core-pulling block is achieved, so that the air bag keeps the state of abutting against the inner wall of the metal insert or the electromagnetic ring keeps the state of adsorbing the iron insert, when the raw material is pushed into the cavity, the temperature of the upper die seat, the lower die seat and the core-pulling block increases with the continuous feeding of the raw material, the heat expansion block expands under the heat, pushes the sliding plate to slide away from the abutting piece, so that the air bag shrinks, the inner wall of the metal insert or the magnetic force of the electromagnet on the iron insert disappears, with the continuous increase of the temperature, the sliding plate slides against the second chamfer and the fourth chamfer, pushes the first embedded block to separate from the first embedded groove, the locking between the abutting piece and the upper die seat or the core-pulling block is released, the fourth embedded block is embedded into the second embedded groove, the fixed connection between the sliding plate and the upper die seat or the core-pulling block is achieved, when the upper die seat and the lower die seat are separated, the abutting piece extends out of the communication groove under the action of the first reset piece, the abutting piece abuts against the third chamfer, drives the fourth embedded block to separate from the fourth embedded groove, the sliding plate approaches the abutting piece under the action of the second reset piece, facilitating the installation and fixation of the metal insert next time.

[0022] Preferably, the limiting assembly further comprises an unlocking column and a fifth reset piece, the side cavity wall of the sliding groove close to the cavity is provided with an unlocking groove, the unlocking groove is communicated with the cavity, the unlocking column is slidably embedded in the unlocking groove, one end of the unlocking column away from the cavity is used for abutting against the sliding plate, the fifth reset piece is connected between the unlocking column and the upper die seat or the core-pulling block, and the fifth reset piece makes the unlocking column have a tendency to move away from the sliding plate.

[0023] By adopting the above technical scheme, when the metal insert is installed incorrectly, the sliding plate is pushed to slide by the unlocking column, the air bag shrinks or the movable contact piece and the stationary contact piece are separated, the magnetic force of the electromagnet disappears, and then the metal insert is removed, the unlocking column is reset under the action of the fifth reset piece, the sliding plate is reset under the action of the second reset piece, and the fixation of the metal insert is achieved again, thereby improving the convenience of the assembly of the metal insert.

[0024] Preferably, one end of the unlocking column close to the sliding plate is provided with a groove, the heat expansion block is embedded in the groove, the groove wall of the unlocking groove is provided with a limiting groove, the periphery of the unlocking column is connected with a limiting ring, the limiting ring is slidably embedded in the limiting groove, when the heat expansion block is in a normal temperature state, one side of the limiting ring away from the sliding groove is fitted with the groove wall of the limiting groove away from the sliding groove.

[0025] By adopting the above technical scheme, the limiting ring abuts against the groove wall of the limiting groove away from the sliding groove, when the heat expansion block expands under the heat, the heat expansion block cannot push the unlocking column to slide away from the sliding plate, and then push the sliding plate to slide away from the abutting piece.

[0026] To sum up, the present application includes at least one of the following beneficial technical effects: 1. Forming a cavity with the upper die holder, the lower die holder and the core-pulling assembly, and pre-placing the metal insert into the specified position in the cavity, so that the fixed connection between the insert and the bracket body is automatically realized when the raw material cools down, reducing the damage to the bracket body caused by the staff embedding the metal insert into the installation slot, reducing product consumption, and improving the production efficiency of the fixed bracket; 2. The first mounting column, the second mounting column and the third mounting column realize the positioning of the metal insert, reduce the possibility of displacement of the metal insert during the clamping process of the upper die holder and the lower die holder or the injection molding process, improve the yield of the product, and improve the production efficiency of the fixed bracket; 3. To ensure that the first mounting column, the second mounting column and the third mounting column can be smoothly separated from the metal insert after the product is cooled and formed, a clearance fit is adopted between the metal insert and the first mounting column, the second mounting column or the third mounting column, so that the metal insert has the possibility of shifting under the action of gravity during the clamping process of the upper die holder and the lower die holder, improving the expansion or contraction of the air bag to realize the fixed connection or release of the metal insert and the first mounting column, the second mounting column or the third mounting column, reducing the possibility of displacement of the metal insert during the clamping process, and improving the reliability of the mold. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of a fixed bracket.

[0028] Figure 2 is a structural schematic diagram of another view of the fixed bracket.

[0029] Figure 3 is an exploded structural schematic diagram of Example 1.

[0030] Figure 4 is a sectional view of Example 1.

[0031] Figure 5 is a partial sectional view of Example 1, mainly showing the ejector rod, the mounting plate and the fixing plate.

[0032] Figure 6 is a partial sectional view of Example 1, mainly showing the anti-collision column, the mounting plate and the fixing plate.

[0033] Figure 7 is a partial structural schematic diagram of Example 1, mainly showing the upper die holder, the inclined guide column, the limiting assembly and the metal insert.

[0034] Figure 8 is a partial structural schematic diagram of Example 1, mainly showing the core-pulling block and the limiting assembly.

[0035] Figure 9is a partial sectional view of the upper die holder, the limiting assembly and the metal insert in Example 1.

[0036] Figure 10 is Figure 9 is an enlarged view at A in Figure 6.

[0037] Figure 11 is a partial sectional view of the upper die holder, the limiting assembly and the metal insert in Example 1, mainly showing the connecting channel.

[0038] Figure 12 is a partial sectional view of the upper die holder, the limiting assembly and the metal insert in Example 2, mainly showing the first mounting column.

[0039] BRIEF DESCRIPTION OF THE DRAWINGS 1, mold body; 11, upper die holder; 111, first mounting column; 1111, first ring cavity; 112, second mounting column; 1121, second ring cavity; 12, lower die holder; 121, sliding cavity; 122, ejection groove; 123, communication hole; 124, ejection cavity; 13, core pulling assembly; 131, core pulling block; 1311, guide hole; 1312, third mounting column; 13121, third ring cavity; 132, inclined guide pillar; 14, cavity; 15, sliding groove; 16, communication groove; 17, connecting channel; 18, first connecting groove; 19, second connecting groove; 110, unlocking groove; 1101, limiting groove; 1102, second accommodating groove; 1103, first accommodating groove; 1104, third accommodating groove; 1105, fourth accommodating cavity; 2, ejection mechanism; 21, mounting plate; 211, first positioning hole; 212, first positioning groove; 213, second positioning hole; 214, second positioning groove; 22, ejector rod; 221, first positioning ring; 23, ejection driving cylinder; 24, anti-collision column; 241, second positioning ring; 25, fixed plate; 3, limiting assembly; 31, first reset member; 32, limiting component; 321, air bag; 322, electromagnetic ring; 33, abutting member; 331, abutting ring; 3311, first embedding groove; 332, abutting block; 34, sliding plate; 341, second embedding groove; 35, second reset member; 36, heat expansion block; 37, first locking block; 371, first embedding block; 3711, first chamfer; 372, second embedding block; 3721, second chamfer; 38, third reset member; 39, second locking block; 391, third embedding block; 3911, third chamfer; 392, fourth embedding block; 3921, fourth chamfer; 310, fourth reset member; 311, unlocking column; 3111, groove; 3112, limiting ring; 3113, convex ring; 312, fifth reset member; 313, power block; 314, movable contact; 315, static contact; 01, fixing support; 011, support body; 0111, mounting groove; 012, metal insert; 0121, iron insert; 0122, copper insert. DETAILED DESCRIPTION

[0040] The application will be further described in detail below with reference to the accompanying drawings.

[0041] The application discloses an injection mold of a windshield fixing support.

[0042] Embodiment 1 Referring to Figure 3 The application discloses an injection mold of a windshield fixing support, which comprises a mold body 1, the mold body 1 comprises an upper mold base 11 and a lower mold base 12, the upper mold base 11 is slidably connected to one side of the lower mold base 12 along the thickness direction of the lower mold base 12, and the clamping direction of the upper mold base 11 and the lower mold base 12 is parallel to the thickness direction of the lower mold base 12. The upper mold base 11 and the lower mold base 12 are clamped to form a cavity 14 for injection molding, and the cavity 14 is used for embedding a metal insert 012. The cavity 14 is provided with two cavities 14 which are symmetrically distributed along the length direction of the lower mold base 12.

[0043] Referring to Figure 3 and Figure 4 The cavity 14 of the lower mold base 12 is provided with a sliding cavity 121 at the cavity wall of one side along the width direction of the lower mold base 12, the mold body 1 further comprises a core pulling assembly 13, the number of the core pulling assembly 13 is the same as that of the sliding cavity 121 and one-to-one corresponding, the core pulling assembly 13 comprises a core pulling block 131 and an inclined guide column 132, the core pulling block 131 is slidably embedded in the sliding cavity 121, the sliding direction of the core pulling block 131 is parallel to the width direction of the lower mold base 12, one side surface of the core pulling block 131 close to the upper mold base 11 is provided with a guide hole 1311, and one end of the guide hole 1311 away from the upper mold base 11 is inclinedly arranged away from the cavity 14. One end of the inclined guide column 132 is fixedly connected to the upper mold base 11, the other end of the inclined guide column 132 is used for embedding in the guide hole 1311, and the axis of the inclined guide column 132 is parallel to the axis of the guide hole 1311.

[0044] The injection mold of the windshield fixed support further comprises an ejection mechanism 2, the ejection mechanism 2 comprises a fixed plate 25 and an ejection driving cylinder 23, the lower mold base 12 is provided with an ejection cavity 124, the ejection cavity 124 is located at the side of the cavity 14 away from the upper mold base 11, the fixed plate 25 is slidingly embedded in the ejection cavity 124, and the sliding direction of the fixed plate 25 is parallel to the closing direction of the upper mold base 11 and the lower mold base 12. The ejection driving cylinder 23 is connected to the fixed plate 25, and the ejection driving cylinder 23 is used for driving the fixed plate 25 to slide, and the ejection driving cylinder 23 is provided with two, and the two ejection driving cylinders 23 are symmetrically distributed along the length direction of the lower mold base 12. In the embodiment, the ejection driving cylinder 23 adopts a pneumatic cylinder, the ejection driving cylinder 23 is fixedly connected to the side surface of the fixed plate 25 close to the cavity 14, and the piston rod of the ejection driving cylinder 23 is fixedly connected to the cavity wall of the ejection cavity 124 away from the cavity 14 after penetrating through the fixed plate 25.

[0045] With reference to Figure 3 and Figure 5 , the ejection mechanism 2 further comprises an ejector rod 22 and a mounting plate 21, the mounting plate 21 is fixedly connected to the side surface of the fixed plate 25 close to the upper mold base 11, the ejection cavity 124 is provided with an ejection groove 122 at the cavity wall close to the cavity 14, the ejection groove 122 is communicated with the cavity 14, the ejection groove 122 is provided with a plurality of ejection grooves 122, and the plurality of ejection grooves 122 are uniformly distributed in the cavity 14. The number of the ejector rods 22 is the same as that of the ejection grooves 122 and one-to-one correspondence, the ejector rod 22 is coaxially and slidingly embedded in the ejection groove 122, and one end of the ejector rod 22 away from the fixed plate 25 is used for extending into the cavity 14. The mounting plate 21 is provided with a first positioning hole 211, the number of the first positioning hole 211 is the same as that of the ejector rod 22 and one-to-one correspondence, the other end of the ejector rod 22 is embedded in the first positioning hole 211, the hole wall of the first positioning hole 211 close to the fixed plate 25 is provided with a first positioning groove 212, the outer periphery of the ejector rod 22 close to the fixed plate 25 is fixedly connected with a first positioning ring 221, the first positioning ring 221 is embedded in the first positioning groove 212, and the two side surfaces of the first positioning ring 221 along the axis direction of the ejector rod 22 are respectively attached to the side surface of the fixed plate 25 close to the mounting plate 21 and the side surface of the first positioning groove 212 away from the fixed plate 25.

[0046] With reference to Figure 3 and Figure 6The lower die seat 12 is provided with six communication holes 123, the six communication holes 123 are divided into three groups, the three groups of communication holes 123 are uniformly distributed along the length direction of the lower die seat 12, and the two communication holes 123 in the same group are symmetrically distributed along the width direction of the lower die seat 12. The ejection mechanism 2 further comprises a bumper column 24, the number of the bumper column 24 is the same as and one-to-one corresponds to the number of the communication holes 123, the bumper column 24 is coaxially and slidingly embedded in the communication hole 123, and the end of the bumper column 24 away from the fixed plate 25 is used for abutting against the upper die seat 11. The mounting plate 21 is provided with a second positioning hole 213, the number of the second positioning hole 213 is the same as and one-to-one corresponds to the number of the bumper column 24, the other end of the bumper column 24 is embedded in the second positioning hole 213, the hole wall of the second positioning hole 213 close to the end of the fixed plate 25 is provided with a second positioning groove 214, the outer periphery of the bumper column 24 close to the end of the fixed plate 25 is fixedly connected with a second positioning ring 241, the second positioning ring 241 is embedded in the second positioning groove 214, and the two side surfaces of the second positioning ring 241 along the axis direction of the bumper column 24 are respectively attached to the side surface of the fixed plate 25 close to the mounting plate 21 and the side surface of the second positioning groove 214 away from the fixed plate 25.

[0047] With reference to Figure 7 and Figure 8 The injection mold of the windshield fixed support further comprises a limiting assembly 3, the cavity wall of the cavity 14 of the upper die seat 11 is fixedly connected with a first mounting column 111 and a second mounting column 112, the side surface of the core-pulling block 131 close to the cavity 14 is fixedly connected with a third mounting column 1312, the number of the first mounting column 111 is the same as and one-to-one corresponds to the number of the iron insert 0121, the iron insert 0121 is sleeved on the outer periphery of the first mounting column 111, the sum of the number of the second mounting column 112 and the third mounting column 1312 is the same as and one-to-one corresponds to the number of the copper insert 0122, and the copper insert 0122 is sleeved on the outer periphery of the second mounting column 112 or the third mounting column 1312. In the embodiment, the first mounting column 111 is provided with six, the second mounting column 112 is provided with four, and the third mounting column 1312 is provided with four. The number of the limiting assembly 3 is the same as and one-to-one corresponds to the sum of the number of the first mounting column 111, the second mounting column 112 and the third mounting column 1312.

[0048] With reference to Figure 8 and Figure 9 The limiting assembly 3 comprises a limiting component 32, the outer periphery of the first mounting column 111 is provided with a first ring cavity 1111, the outer periphery of the second mounting column 112 is provided with a second ring cavity 1121, the outer periphery of the third mounting column 1312 is provided with a third ring cavity 13121, and the limiting component 32 adopts an air bag 321, the air bag 321 is embedded in the first ring cavity 1111, the second ring cavity 1121 or the third ring cavity 13121, and the air bag 321 is used for abutting against the inner wall of the iron insert 0121 or the copper insert 0122.

[0049] With reference to Figure 10 andFigure 11 The upper die holder 11 or the core pulling block 131 is provided with a sliding groove 15, the number of the sliding grooves 15 is the same as and one-to-one corresponds to the number of the limiting assemblies 3. The limiting assembly 3 further comprises an abutting piece 33, a first reset piece 31, a sliding plate 34 and a second reset piece 35. The sliding plate 34 is slidingly embedded in the sliding groove 15, and the sliding direction of the sliding plate 34 is parallel to the axis of the first mounting column 111, the second mounting column 112 or the third mounting column 1312. The second reset piece 35 is connected between the sliding plate 34 and the upper die holder 11 or the core pulling block 131, and the second reset piece 35 makes the sliding plate 34 have a tendency to be close to the cavity 14. In the embodiment, the second reset piece 35 adopts a spring. The groove wall of the sliding groove 15 away from the cavity 14 is provided with a second accommodating groove 1102. One end of the second reset piece 35 is connected to the groove bottom of the second accommodating groove 1102, and the other end of the second reset piece 35 is connected to the side surface of the sliding plate 34 away from the cavity 14. The abutting piece 33 comprises an abutting ring 331 and an abutting block 332. The abutting ring 331 is slidingly embedded in the sliding groove 15, and the sliding direction of the abutting ring 331 is parallel to the sliding direction of the sliding plate 34. The sliding groove 15 is provided with a connecting channel 17 at the groove wall. The connecting channel 17 is in communication with the air bag 321. The connection between the sliding groove 15 and the connecting channel 17 is located between the abutting ring 331 and the sliding plate 34. The sliding groove 15 is provided with a communication groove 16 at the groove wall close to the cavity 14. The communication groove 16 is provided with two, and the two communication grooves 16 are uniformly distributed in the circumferential direction around the axis of the first mounting column 111, the second mounting column 112 or the third mounting column 1312. The number of the abutting blocks 332 is the same as and one-to-one corresponds to the number of the communication grooves 16. One end of the abutting block 332 is fixedly connected to the side surface of the abutting ring 331 away from the sliding plate 34, and the other end of the abutting block 332 is used to extend into the cavity 14 after passing through the communication groove 16. The end of the abutting block 332 away from the abutting ring 331 is used to abut against the iron insert 0121 or the copper insert 0122. The first reset piece 31 is connected between the abutting ring 331 and the upper die holder 11 or the core pulling block 131. The first reset piece 31 makes the end of the abutting block 332 away from the abutting ring 331 have a tendency to extend out of the communication groove 16. In the embodiment, the first reset piece 31 adopts a spring. The groove wall of the sliding groove 15 close to the cavity 14 is provided with a first accommodating groove 1103. One end of the first reset piece 31 is connected to the groove bottom of the first accommodating groove 1103, and the other end of the first reset piece 31 is connected to the side surface of the abutting ring 331 away from the sliding plate 34.

[0050] Referring to Figure 10, the limiting assembly 3 further comprises an unlocking column 311, a fifth reset member 312 and a heat expansion block 36, the unlocking slot 110 is arranged at the side groove wall of the sliding groove 15 close to the cavity 14, the unlocking slot 110 is communicated with the cavity 14, the unlocking column 311 is coaxially and slidingly embedded in the unlocking slot 110, the end of the unlocking column 311 away from the cavity 14 is used for abutting against the side surface of the sliding plate 34 close to the cavity 14, the end of the unlocking column 311 away from the sliding plate 34 is flush with the first mounting column 111, the second mounting column 112 or the third mounting column 1312 away from the end of the sliding groove 15, the third accommodating slot 1104 is arranged at the groove wall of the unlocking slot 110 away from the sliding groove 15, the outer periphery of the end of the unlocking column 311 away from the sliding plate 34 is coaxially and fixedly connected with a convex ring 3113, the convex ring 3113 is slidingly embedded in the groove 3111, and the outer wall of the convex ring 3113 is attached to the groove wall of the groove 3111. The limiting slot 1101 is arranged at the groove wall of the unlocking slot 110 close to the third accommodating slot 1104, the limiting ring 3112 is coaxially and fixedly connected with the outer periphery of the unlocking column 311, and the limiting ring 3112 is slidingly embedded in the limiting slot 1101. The fifth reset member 312 is connected between the limiting ring 3112 and the upper die seat 11 or the core pulling block 131, and the fifth reset member 312 makes the side surface of the limiting ring 3112 away from the sliding groove 15 have a tendency of abutting against the groove wall of the limiting slot 1101 away from the sliding groove 15. In the embodiment, the fifth reset member 312 is a spring, one end of the fifth reset member 312 is connected to the side surface of the limiting ring 3112 close to the sliding groove 15, and the other end of the fifth reset member 312 is connected to the groove wall of the limiting slot 1101 close to the sliding groove 15. The end of the unlocking column 311 close to the sliding plate 34 is provided with the groove 3111, the heat expansion block 36 is embedded in the groove 3111, the end of the heat expansion block 36 away from the groove bottom of the groove 3111 abuts against the side surface of the abutting ring 331 close to the sliding plate 34, and the heat expansion block 36 is used for pushing the sliding plate 34 to slide away from the cavity 14. In the embodiment, when the heat expansion block 36 is in a normal temperature state, the side surface of the limiting ring 3112 away from the sliding groove 15 is attached to the groove wall of the limiting slot 1101 away from the sliding groove 15.

[0051] The limiting assembly 3 further comprises a first locking block 37 and a third reset member 38. The slot wall of the sliding slot 15 is provided with a first connecting groove 18. There are three first connecting grooves 18, which are evenly distributed around the unlocking groove 110 in the circumferential direction. The number of the first locking block 37 and the third reset member 38 is the same as that of the first connecting groove 18, and they are one-to-one corresponding. The first locking block 37 is slidingly embedded in the first connecting groove 18. The sliding direction of the first locking block 37 is perpendicular to the sliding direction of the sliding plate 34. The side wall of the first locking block 37 is in close contact with the groove wall of the first connecting groove 18. The side surface of the first locking block 37 close to the sliding slot 15 is fixedly connected with a first embedding block 371 and a second embedding block 372. The first embedding block 371 is located on the side of the second embedding block 372 close to the cavity 14. The outer wall of the abutting ring 331 is provided with a first embedding groove 3311. The number of the first embedding groove 3311 is the same as that of the first embedding block 371, and they are one-to-one corresponding. The first embedding groove 3311 is used for embedding the end of the first embedding block 371 away from the first locking block 37. The end of the first embedding block 371 away from the first locking block 37 is provided with a first chamfer 3711. The first chamfer 3711 is located on the side of the first embedding block 371 away from the second embedding block 372. The first chamfer 3711 is used for abutting with the end of the abutting ring 331 close to the sliding plate 34. In the embodiment, when the end of the abutting block 332 away from the abutting ring 331 is embedded in the communicating groove 16, the first embedding block 371 is embedded in the first embedding groove 3311. The end of the second embedding block 372 close to the sliding slot 15 is provided with a second chamfer 3721. The second chamfer 3721 is located on the side of the second embedding block 372 close to the first embedding block 371. The second chamfer 3721 is used for abutting with the end of the sliding plate 34 away from the abutting ring 331. In the embodiment, when the side surface of the sliding plate 34 away from the abutting ring 331 abuts with the side groove wall of the sliding slot 15 close to the second accommodating groove 1102, the second embedding block 372 abuts with the outer wall of the sliding plate 34, and the first embedding block 371 is separated from the first embedding groove 3311. The third reset member 38 is connected between the first locking block 37 and the upper die seat 11 or the core-pulling block 131. The third reset member 38 makes the first embedding block 371 and the second embedding block 372 have the tendency to be embedded in the sliding slot 15. In the embodiment, the third reset member 38 is a spring. One end of the third reset member 38 is connected with the side surface of the first locking block 37 away from the sliding slot 15, and the other end of the third reset member 38 is connected with the groove bottom of the first connecting groove 18.

[0052] The limiting assembly 3 further comprises a second locking block 39 and a fourth reset member 310. The slot wall of the sliding slot 15 is provided with a second connecting groove 19. There are three second connecting grooves 19, which are evenly distributed in the circumferential direction of the unlocking groove 110. One second connecting groove 19 is arranged between every two adjacent first connecting grooves 18. The number of the second locking blocks 39 and the fourth reset members 310 is the same as that of the second connecting grooves 19, and each second locking block 39 is slidably embedded in a second connecting groove 19. The sliding direction of the second locking block 39 is perpendicular to the sliding direction of the second sliding plate 34. The side wall of the second locking block 39 is in close contact with the groove wall of the second connecting groove 19. The side surface of the second locking block 39 close to the sliding slot 15 is fixedly connected with a third embedding block 391 and a fourth embedding block 392. The third embedding block 391 is located on the side of the fourth embedding block 392 close to the cavity 14. The outer wall of the sliding plate 34 is provided with a second embedding groove 341. The number of the second embedding grooves 341 is the same as that of the fourth embedding blocks 392, and each second embedding groove 341 is used for embedding an end of the fourth embedding block 392 away from the second locking block 39. The end of the fourth embedding block 392 away from the second locking block 39 is provided with a fourth chamfer 3921. The fourth chamfer 3921 is located on the side of the fourth embedding block 392 close to the third embedding block 391. The fourth chamfer 3921 is used for abutting against an end of the sliding plate 34 away from the abutting ring 331. In the embodiment, when the side surface of the sliding plate 34 away from the abutting ring 331 abuts against the side groove wall of the sliding slot 15 close to the second containing groove 1102, the fourth embedding block 392 is embedded in the second embedding groove 341. The end of the third embedding block 391 close to the sliding slot 15 is provided with a third chamfer 3911. The third chamfer 3911 is located on the side of the third embedding block 391 close to the fourth embedding block 392. The third chamfer 3911 is used for abutting against an end of the abutting ring 331 away from the sliding plate 34. In the embodiment, when the side surface of the abutting ring 331 away from the sliding plate 34 abuts against the side groove wall of the sliding slot 15 away from the second containing groove 1102, the third embedding block 391 abuts against the outer wall of the abutting ring 331, and the fourth embedding block 392 is separated from the second embedding groove 341. The fourth reset member 310 is connected between the second locking block 39 and the upper die seat 11 or the core-pulling block 131. The fourth reset member 310 enables the third embedding block 391 and the fourth embedding block 392 to have a tendency to be embedded in the sliding slot 15. In the embodiment, the fourth reset member 310 is a spring. One end of the fourth reset member 310 is connected to the side surface of the second locking block 39 away from the sliding slot 15, and the other end of the fourth reset member 310 is connected to the groove bottom of the second connecting groove 19.

[0053] The implementation principle of embodiment 1 is that the iron insert 0121 is sleeved on the outer periphery of the first mounting column 111, the copper insert 0122 is sleeved on the outer periphery of the second mounting column 112 or the third mounting column 1312, the copper insert 0122 abuts against the abutting block 332, the abutting block 332 is pushed to slide, the abutting ring 331 abuts against the first chamfer 3711, the first locking block 37 is pushed to slide, when the abutting block 332 is embedded in the communication groove 16 and the first embedded block 371 is aligned with the first embedded groove 3311, the first embedded block 371 is embedded in the first embedded groove 3311, the fixed connection between the abutting ring 331 and the upper mold base 11 or the core pulling block 131 is realized, the abutting ring 331 compresses the air in the sliding groove 15 into the air bag 321 through the connecting channel 17, the air bag 321 expands and abuts tightly against the inner wall of the copper insert 0122, the fixed connection between the iron insert 0121 and the first mounting column 111 is realized, and the fixed connection between the copper insert 0122 and the second mounting column 112 and the third mounting column 1312 is realized.

[0054] The upper mold base 11 and the lower mold base 12 are closed, the inclined guide column 132 is embedded in the guide hole 1311, the core pulling block 131 is pushed to slide and close to the cavity 14, the raw material is pushed into the cavity 14, the upper mold base 11, the lower mold base 12 and the core pulling block 131 are heated, the heated expansion block 36 is heated and expanded, the sliding plate 34 is pushed to slide away from the cavity 14, the gap between the abutting ring 331 and the sliding plate 34 is increased, the air in the air bag 321 returns to the sliding groove 15 through the connecting channel 17, the air bag 321 shrinks, the locking between the iron insert 0121 and the first mounting column 111 is released, and the locking between the copper insert 0122 and the second mounting column 112 or the third mounting column 1312 is released. The sliding plate 34 abuts against the second chamfer 3721, the first locking block 37 is pushed to slide away from the sliding groove 15, the first embedded block 371 is driven to slide, the sliding plate 34 abuts against the fourth chamfer 3921, the second locking block 39 is pushed to slide away from the sliding groove 15, when the sliding plate 34 abuts against the sliding groove 15 close to the side wall of the second containing groove 1102, the first embedded block 371 is separated from the first embedded groove 3311, the fourth embedded block 392 is aligned with the second embedded groove 341, the fourth embedded block 392 is embedded in the second embedded groove 341, and the fixed connection between the sliding plate 34 and the upper mold base 11 or the core pulling block 131 is realized.

[0055] When the product is cooled, the upper die holder 11 and the lower die holder 12 are separated, the inclined guide column 132 drives the core pulling block 131 to slide away from the cavity 14, the abutment ring 331 slides away from the sliding plate 34 under the elastic force of the first reset member 31, the abutment block 332 extends into the connecting groove, the abutment ring 331 abuts against the third chamfer 3911, and the second locking block 39 is pushed to slide. When the abutment ring 331 abuts against the side wall of the sliding groove 15 away from the second containing groove 1102, the fourth embedding block 392 is separated from the second embedding groove 341, the sliding plate 34 slides to be close to the abutment ring 331 under the elastic force of the second reset member 35, and the first embedding block 371 and the second embedding block 372 extend into the sliding groove 15 under the elastic force of the third reset member 38.

[0056] Embodiment 2 With reference to Figure 12 The difference between this embodiment and embodiment 1 is that the limiting component 32 in the first annular cavity 111 is an electromagnetic ring 322, and the electromagnetic ring 322 is used for adsorbing the iron embedding piece 0121. The limiting assembly 3 further comprises a power supply block 313, a movable contact 314 and a stationary contact 315. The first mounting column 111 is provided with a fourth containing cavity 1105 located at the side of the sliding groove 15 away from the cavity 14. The power supply block 313 is embedded in the fourth containing cavity 1105 and provides power for the electromagnetic ring 322. The stationary contact 315 is fixedly connected to the side surface of the sliding plate 34 close to the abutment ring 331, and the movable contact 314 is fixedly connected to the side surface of the abutment ring 331 close to the sliding plate 34. The movable contact 314 is used for abutting against the stationary contact 315, and the movable contact 314 and the stationary contact 315 are electrically connected with the electromagnetic ring 322 and the power supply block 313. In this embodiment, when the abutment block 332 is embedded in the communication groove 16 away from the abutment ring 331, the movable contact 314 and the stationary contact 315 abut against each other, and the electromagnetic ring 322 is powered to adsorb the iron embedding piece 0121.

[0057] The implementation principle of embodiment 2 is that the iron embedding piece 0121 is sleeved on the outer periphery of the first mounting column 111, the iron embedding piece 0121 abuts against the abutment block 332 to push the abutment block 332 to slide, the abutment ring 331 abuts against the first chamfer 3711 to push the first locking block 37 to slide, the first embedding block 371 is embedded in the first embedding groove 3311 when the abutment block 332 is embedded in the communication groove 16, and the first embedding block 371 is embedded in the first embedding groove 3311 to achieve the fixed connection between the abutment ring 331 and the upper die holder 11. The stationary contact 315 and the movable contact 314 abut against each other, the power supply block 313 provides power for the electromagnetic ring 322, the electromagnetic ring 322 generates magnetic force to adsorb the iron embedding piece 0121, and the fixed connection between the iron embedding piece 0121 and the first mounting column 111 is achieved.

[0058] The upper die holder 11 and the lower die holder 12 are closed, the inclined guide column 132 is embedded into the guide hole 1311, the core pulling block 131 is pushed to slide close to the cavity 14, the raw material is pushed into the cavity 14, the upper die holder 11, the lower die holder 12 and the core pulling block 131 are heated, the heated expansion block 36 is expanded, the sliding plate 34 is pushed to slide away from the cavity 14, the movable contact piece 314 and the fixed contact piece 315 are separated, the power block 313 stops the power supply of the electromagnetic ring 322, the magnetic force of the electromagnetic ring 322 disappears, and the locking between the iron insert 0121 and the first mounting column 111 is released.

[0059] The sliding plate 34 abuts against the second chamfer 3721, the first locking block 37 is pushed to slide away from the sliding groove 15, the first embedded block 371 is driven to slide, the sliding plate 34 abuts against the fourth chamfer 3921, the second locking block 39 is pushed to slide away from the sliding groove 15, when the sliding plate 34 abuts against the side wall of the sliding groove 15 close to the second containing groove 1102, the first embedded block 371 is separated from the first embedded groove 3311, the fourth embedded block 392 is aligned with the second embedded groove 341, the fourth embedded block 392 is embedded into the second embedded groove 341, and the fixed connection between the sliding plate 34 and the upper die holder 11 is realized.

[0060] When the product is cooled, the upper die holder 11 and the lower die holder 12 are opened, the inclined guide column 132 drives the core pulling block 131 to slide away from the cavity 14, the abutting ring 331 slides away from the sliding plate 34 under the elastic force of the first reset member 31, the abutting block 332 extends into the connecting groove, the abutting ring 331 abuts against the third chamfer 3911 and pushes the second locking block 39 to slide, when the abutting ring 331 abuts against the side wall of the sliding groove 15 away from the second containing groove 1102, the fourth embedded block 392 is separated from the second embedded groove 341, the sliding plate 34 slides close to the abutting ring 331 under the elastic force of the second reset member 35, and the first embedded block 371 and the second embedded block 372 extend into the sliding groove 15 under the elastic force of the third reset member 38.

[0061] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered into the protection scope of the present application.

Claims

1. An injection mold for a windshield fixing bracket, characterized in that: The system includes an upper mold base (11), a lower mold base (12), and a core-pulling assembly (13); the upper mold base (11) is slidably connected to the lower mold base (12); the upper mold base (11) and the lower mold base (12) close together to form a cavity (14) for injection molding; the cavity (14) is used for inserting a metal insert (012); a sliding cavity (121) is provided in the cavity wall of the cavity (14) of the lower mold base (12); the core-pulling assembly (13) includes a core-pulling block (131) and an inclined guide post (132); The core-pulling block (131) is slidably embedded in the sliding cavity (121); the core-pulling block (131) is provided with a guide hole (1311); the end of the guide hole (1311) away from the upper mold base (11) is inclined away from the cavity (14); one end of the inclined guide post (132) is connected to the upper mold base (11); the axis of the inclined guide post (132) is parallel to the axis of the guide hole (1311); the other end of the inclined guide post (132) is used to be embedded in the guide hole (1311).

2. The injection mold for the windshield fixing bracket according to claim 1, characterized in that: It also includes an ejection mechanism (2); the ejection mechanism (2) includes a mounting plate (21), ejector rods (22) and an ejection drive cylinder (23); the mounting plate (21) is slidably connected to the lower mold base (12); the sliding direction of the mounting plate (21) is parallel to the mold closing direction of the upper mold base (11) and the lower mold base (12); a number of ejection slots (122) are evenly distributed on the cavity wall of the cavity (14) of the lower mold base (12); the number of ejector rods (22) is the same as the number of ejection slots (122) and they correspond one-to-one; the ejector rods (22) are slidably embedded in the ejection slots (122); one end of the ejector rod (22) is connected to the mounting plate (21); the other end of the ejector rod (22) is used to extend into the cavity (14).

3. The injection mold for the windshield fixing bracket according to claim 2, characterized in that: The ejection mechanism (2) also includes a crash bar (24); the lower mold base (12) is provided with a connecting hole (123); the crash bar (24) is slidably embedded in the connecting hole (123); one end of the crash bar (24) is connected to the mounting plate (21); the other end of the crash bar (24) is used to abut against the upper mold base (11).

4. The injection mold for the windshield fixing bracket according to claim 1, characterized in that: The upper mold base (11) has a first mounting post (111) connected to the cavity wall of the cavity (14); the number of the first mounting posts (111) is the same as the number of iron inserts (0121) and they correspond one-to-one; the iron inserts (0121) are sleeved on the outer periphery of the first mounting posts (111); the upper mold base (11) has a second mounting post (112) connected to the cavity wall of the cavity (14); the core-pulling block (131) is connected to a third mounting post (1312) on the side near the cavity (14); the sum of the number of the second mounting posts (112) and the third mounting posts (1312) is the same as the number of copper inserts (0122) and they correspond one-to-one; the copper inserts (0122) are sleeved on the outer periphery of the second mounting post (112) or the third mounting post (1312).

5. The injection mold for the windshield fixing bracket according to claim 4, characterized in that: It also includes a limiting component (3); the number of the limiting components (3) is the same as the sum of the number of the first mounting post (111), the second mounting post (112) and the third mounting post (1312) and they correspond one-to-one; the limiting component (3) includes a limiting part (32); the limiting part (32) is an airbag (321); the airbag (321) is connected to the first mounting post (111), the second mounting post (112) or the third mounting post (1312); the airbag (321) is used to press against the inner wall of the metal insert (012) to achieve relative fixation between the metal insert (012) and the first mounting post (111), the second mounting post (112) or the third mounting post (1312).

6. The injection mold for the windshield fixing bracket according to claim 5, characterized in that: The limiting component (3) further includes an abutment (33), a first reset component (31), and a sliding plate (34); the upper mold base (11) or core-pulling block (131) is provided with a sliding groove (15); the number of sliding grooves (15) is the same as the number of limiting components (3) and corresponds one-to-one; the sliding plate (34) is embedded in the sliding groove (15); the abutment (33) is slidably embedded in the sliding groove (15); the sliding direction of the abutment (33) is parallel to the axial direction of the first mounting post (111), the second mounting post (112), or the third mounting post (1312); the abutment (33) is located on the side of the sliding plate (34) near the cavity (14); the sliding groove (15) is provided with a connecting channel (17); the connecting channel (17) and the airbag (3) are connected. 21) Connected; the connection between the connecting channel (17) and the slide (15) is located between the abutment (33) and the slide plate (34); the slide (15) has a connecting groove (16) on one side of the groove wall near the cavity (14); the abutment (33) extends into the cavity (14) after passing through the connecting groove (16) at one end away from the slide plate (34); the abutment (33) at one end away from the slide plate (34) is used to abut against the iron insert (0121) or the copper insert (0122); the first reset member (31) is connected between the abutment (33) and the upper mold base (11) or the core pull block (131); the first reset member (31) makes the abutment (33) at one end away from the slide plate (34) tend to extend out of the connecting groove (16).

7. The injection mold for the windshield fixing bracket according to claim 6, characterized in that: The limiting component (3) further includes a power block (313), a moving contact (314), and a stationary contact (315); the limiting component (32) at the first mounting post (111) is an electromagnetic ring (322); the first mounting post (111) is provided with a first annular cavity (1111); the electromagnetic ring (322) is embedded in the first annular cavity (1111); the electromagnetic ring (322) is used to attract iron inserts (0121); the power block (313) is connected to the upper mold base (11); the power supply provides power to the electromagnetic block. Electricity; the stationary contact (315) is connected to the side of the slide plate (34) near the abutment (33); the moving contact (314) is connected to the side of the abutment (33) near the slide plate (34); the stationary contact (315) and the moving contact (314) are electrically connected to the power block (313) and the electromagnet; when the end of the abutment (33) away from the slide plate (34) is embedded in the connecting groove (16); the stationary contact (315) and the moving contact (314) abut against each other; the electromagnet is energized to attract the iron insert (0121).

8. The injection mold for the windshield fixing bracket according to claim 7, characterized in that: The limiting component (3) further includes a second reset member (35), a thermal expansion block (36), a first locking block (37), a third reset member (38), a second locking block (39), and a fourth reset member (310); the slide plate (34) is slidably embedded in the slide groove (15); the sliding direction of the slide plate (34) is parallel to the sliding direction of the abutment member (33); the second reset member (35) is connected between the slide plate (34) and the upper mold base (11) or the core-pulling block (131); the second reset member (35) causes the first slide plate (34) to tend to move closer to the cavity (14); the thermal expansion block (36) is connected to the upper mold base (11); the thermal expansion block (36) is used to push the slide plate (34) to slide away from the cavity. (14); A first connecting groove (18) is provided on the groove wall of the slide (15); The first locking block (37) is slidably embedded in the first connecting groove (18); The sliding direction of the first locking block (37) is perpendicular to the sliding direction of the slide plate (34); The third reset member (38) is connected between the first locking block (37) and the upper mold base (11) or the core pulling block (131); The third reset member (38) makes the first locking block (37) tend to move closer to the first slide (15); The side of the first locking block (37) close to the first slide (15) is connected to a first insert (371) and a second insert (372); The first insert (371) is located on the side of the second insert (372) close to the cavity (14). The first abutment (33) has a first groove (3311) on its side wall; the first groove (3311) is used for the first insert (371) to be inserted; the first insert (371) has a first chamfer (3711) at one end near the first slide (15); the first chamfer (3711) is located on the side of the first insert (371) near the cavity (14); the first chamfer (3711) is used to abut against the first abutment (33); the second insert (372) has a second chamfer (3721) at one end near the first slide (15); the second chamfer (3721) is located on the side of the second insert (372) near the cavity (14); the second chamfer (3721) is used to abut against the slide plate (34). When the abutting member (33) is embedded in the connecting groove (16) at the end away from the slide plate (34); the first insert (371) is embedded in the first insert groove (3311); the second insert (372) is located on the side of the slide plate (34) away from the abutting member (33); the slide groove (15) is provided with a second connecting groove (19) at the groove wall; the second locking block (39) is slidably embedded in the second connecting groove (19); the sliding direction of the second locking block (39) is perpendicular to the sliding direction of the slide plate (34); the fourth reset member (310) is connected between the second locking block (39) and the upper mold base (11); the fourth reset member (310) makes the second locking block (39) tend to move closer to the slide groove (15);The second locking block (39) is connected to a third insert (391) and a fourth insert (392) on the side near the slide groove (15); the third insert (391) is located on the side of the fourth insert (392) near the cavity (14); the slide plate (34) has a second groove (341) on its side wall; the second groove (341) is used for the fourth insert (392) to be inserted; the third insert (391) has a third chamfer (3911) at one end near the slide groove (15); the third chamfer (3911) is located on the side of the third insert (391) away from the cavity (14); the third chamfer (3911) is used for The fourth insert (392) abuts against the abutting member (33); the end of the fourth insert (392) near the slide groove (15) is provided with a fourth chamfer (3921); the fourth chamfer (3921) is located on the side of the fourth insert (392) near the cavity (14); the fourth chamfer (3921) is used to abut against the slide plate (34); when the end of the abutting member (33) away from the slide plate (34) is embedded in the first connecting groove (16); the third insert (391) is located on the side of the first abutting member (33) away from the first slide plate (34); the third insert (391) and the fourth insert (392) extend into the slide groove (15).

9. The injection mold for the windshield fixing bracket according to claim 8, characterized in that: The limiting component (3) also includes an unlocking post (311) and a fifth reset component (312); the slide (15) is provided with an unlocking groove (110) on the side wall of the cavity (14) near the cavity (14); the unlocking groove (110) is connected to the cavity (14); the unlocking post (311) is slidably embedded in the unlocking groove (110); the end of the unlocking post (311) away from the cavity (14) is used to abut against the slide plate (34); the fifth reset component (312) is connected between the unlocking post (311) and the upper mold base (11) or the core pulling block (131); the fifth reset component (312) makes the unlocking post (311) tend to move away from the slide plate (34).

10. The injection mold for the windshield fixing bracket according to claim 9, characterized in that: The unlocking post (311) has a groove (3111) at one end near the slide plate (34); the heated expansion block (36) is embedded in the groove (3111); the unlocking groove (110) has a limiting groove (1101) on its groove wall; the unlocking post (311) is connected to a limiting ring (3112) on its outer periphery; the limiting ring (3112) is slidably embedded in the limiting groove (1101); when the heated expansion block (36) is at room temperature; the side of the limiting ring (3112) away from the slide groove (15) is in contact with the side of the limiting groove (1101) away from the slide groove (15).

Images