Brush carrier injection molding equipment

Abstract

The utility model relates to the technical field of automobile part machining, and particularly discloses brush carrier injection molding equipment which comprises a machine base, a sliding table arranged at the upper end of the machine base, a mold closing mechanism arranged above the sliding table, two fixing blocks arranged at the upper end of the machine base, and an organ type sleeve body movably arranged between the fixing blocks and the sliding table. An adjusting mechanism used for controlling the sliding table to move horizontally is arranged in the organ type sleeve body. First positioning parts are arranged on the front side and the rear side of the sliding table, second positioning parts are arranged on the front side and the rear side of the machine base, and when the sliding table moves to the position below the mold closing mechanism, the first positioning parts and the second positioning parts are clamped. The sliding table is designed in a horizontal pushing mode, an operator can directly conduct die filling, discharging or insert placing and other operations on the outer side of the machine table, arms are prevented from stretching into equipment, the operation difficulty and the safety risk are reduced, the first positioning part can be matched with the second positioning part before the die closing mechanism falls down, and the sliding table is locked on the outer side of the machine base, so that the die closing mechanism is more convenient to operate. The sliding table cannot shake during mold closing, and the injection molding stability of a product is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a brush holder injection molding equipment. Background Technology

[0002] Automotive brush holders are key components in automotive motors (such as starters and alternators), primarily used to fix and support the brushes, ensuring good electrical contact between the brushes and the commutator or slip rings, thereby enabling current conduction. The manufacturing process of automotive brush holders varies depending on their material (such as metal or plastic) and structural complexity. Injection molding machines are an indispensable key piece of equipment in the processing of plastic brush holders.

[0003] For example, patent application number CN202420275923.7 discloses a vertical injection molding machine, including a chassis. Its features include: an electrical box fixedly connected to the right outer surface of the chassis; a heat dissipation vent fixedly connected to the right outer surface of the electrical box; a control panel fixedly connected to the upper outer surface of the electrical box; a transmission pipe fixedly connected to the rear outer surface of the control panel; a pad rod movably connected to the upper outer surface of the chassis; a support rod fixedly connected to the upper outer surface of the chassis; and a fixing plate movably connected to the upper outer surface of the support rod. Because the bottom mold is fixedly located below the top mold, during the injection molding process and preparation stage, operators need to perform operations such as mold loading, unloading, or insert placement inside the machine, posing a safety hazard. Based on this, some injection molding machines adopt a sliding design, allowing the bottom mold to be delivered outwards. However, this also has drawbacks; after prolonged impact, the bottom mold's position may shift, affecting injection accuracy, and requires optimization. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a brush holder injection molding equipment to overcome the shortcomings of existing equipment.

[0005] To achieve the purpose of this utility model, the utility model is achieved through the following technical solution: a brush holder injection molding equipment, including a base, a slide table at the upper end of the base, the slide table being slidably connected to the base, and a mold closing mechanism above the slide table;

[0006] The upper end of the base is provided with two fixed blocks, and the slide is placed between the two fixed blocks. The fixed blocks are detachably connected to the base. An accordion-style sleeve is movably arranged between the fixed blocks and the slide. An adjustment mechanism for controlling the horizontal movement of the slide is provided in the accordion-style sleeve.

[0007] The slide has a first positioning part on the front and rear sides, and the machine base has a second positioning part on the front and rear sides. When the slide moves to the bottom of the mold closing mechanism, the first positioning part and the second positioning part engage.

[0008] A further improvement is that the mold closing mechanism includes a fixed plate and a mounting platform. The fixed plate is fixedly installed at the lower end of the machine base, and the mounting platform is placed above the slide table. An upper mold base and a lower mold base are provided between the mounting platform and the slide table. The lower mold base is fixedly installed at the upper end of the slide table, and the upper mold base is slidably installed between the mounting platform and the fixed plate through a first limiting member. A hydraulic cylinder is provided at the upper end of the mounting platform, and the output end of the hydraulic cylinder is fixedly connected to the upper mold base.

[0009] A further improvement is that the adjustment mechanism includes a screw, which is rotatably disposed between two fixed blocks. A motor is fixedly disposed on the outside of one of the fixed blocks, and the output end of the motor is fixedly connected to the screw. A nut seat is sleeved on the outside of the screw, and a slide is fixedly connected to the nut seat. Second limiting members for guiding the slide are provided on the left and right sides of the screw.

[0010] A further improvement is that the first limiting member includes multiple support rods, which are fixedly mounted on the upper end of the fixed plate. The upper end of the support rod is fixedly connected to the mounting platform, and the support rod passes through the upper mold base. The upper mold base is slidably connected to the support rod.

[0011] A further improvement is that the second limiting member includes a limiting rod, which is fixedly disposed between two fixed blocks and passes through the slide table and is slidably connected to the slide table.

[0012] A further improvement is that the first positioning part includes a positioning plate, which is fixedly installed on the front and rear sides of the slide table, and the positioning plate has multiple positioning holes.

[0013] A further improvement is that the second positioning part includes a positioning bracket, which is fixedly installed on the front and rear sides of the machine base. A movable plate is provided on the positioning bracket, and the movable plate is slidably installed inside the positioning bracket. A cylinder is fixedly installed on the outside of the positioning bracket, and the output end of the cylinder is fixedly connected to the movable plate. Multiple positioning pins are provided on the side of the movable plate facing the slide table, and the positioning pins are fixedly connected to the movable plate and cooperate with the positioning holes.

[0014] A further improvement is that a damping block is provided on the side of the fixed block near the slide, the damping block is fixedly connected to the fixed block, and a slot is provided on the side of the slide facing the fixed block, the damping block engages with the slot.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The slide adopts a horizontal pushing design, allowing operators to directly perform operations such as mold loading, unloading, or insert placement from outside the machine base, avoiding the need to extend their arms into the equipment, reducing operational difficulty and safety risks. Before the mold closing mechanism falls, the first positioning part will cooperate with the second positioning part to lock the slide to the outside of the machine base, ensuring that the slide will not shake when the mold is closed, thus improving the stability of product injection molding. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the upper mold base in this utility model.

[0019] Figure 2 This is a structural diagram of the lower mold base in this utility model.

[0020] Figure 3 This is a structural diagram of the positioning bracket in this utility model.

[0021] The components are: 1. Fixed plate; 2. Machine base; 3. Slide table; 4. Fixed block; 5. Fixed bolt; 6. Bellows-type sleeve; 7. Motor; 8. Upper mold base; 9. Mounting platform; 10. Hydraulic cylinder; 11. Support rod; 12. Lower mold base; 13. Screw; 14. Limit rod; 15. Slot; 16. Positioning plate; 17. Positioning hole; 18. Positioning bracket; 19. Cylinder; 20. Movable plate; 21. Positioning pin. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a brush holder injection molding equipment, including a base 2, a slide 3 at the upper end of the base 2, the slide 3 being slidably connected to the base 2, and a mold closing mechanism above the slide 3;

[0024] The mold clamping mechanism descends and engages with slide 3. After the raw material is heated and plasticized into a uniform melt by the external barrel, the melt fills the mold cavity of the mold clamping mechanism under injection pressure. Then, it enters the holding pressure stage, where pressure is continuously applied to compensate for the melt's cooling and shrinkage. Circulating cooling water is supplied through the cooling water channels within the mold to accelerate the melt's cooling and solidification. After cooling is complete, the mold clamping mechanism opens, and the mold ejector mechanism ejects the molded brush holder product from the mold. Specific details of the injection molding process will not be elaborated upon further.

[0025] The upper end of the base 2 is provided with two fixed blocks 4, and the slide 3 is placed between the two fixed blocks 4. The fixed blocks 4 are detachably connected to the base 2. A bellows-type sleeve 6 is movably arranged between the fixed blocks 4 and the slide 3. An adjustment mechanism for controlling the horizontal movement of the slide 3 is provided inside the bellows-type sleeve 6.

[0026] The slide 3 adopts a horizontal pushing design. After cooling is complete, the adjustment mechanism will move the slide 3 out from under the mold closing mechanism. Operators can directly perform operations such as mold loading, unloading, or insert placement from outside the machine, avoiding the need to put their arms into the equipment, reducing the difficulty of operation and safety risks. The accordion-style sleeve 6 is placed between the slide 3 and the fixed block 4, which can play a role in dust prevention.

[0027] The slide 3 has a first positioning part on its front and rear sides, and the base 2 has a second positioning part on its front and rear sides. When the slide 3 moves to the bottom of the mold closing mechanism, the first positioning part and the second positioning part engage.

[0028] Before the mold closing mechanism falls, the first positioning part will cooperate with the second positioning part to lock the slide 3 to the outside of the machine base 2, so as to ensure that the slide 3 will not shake when the mold is closed, thereby improving the injection stability of the product.

[0029] Regarding the mold closing mechanism:

[0030] The mold closing mechanism includes a fixed plate 1 and a mounting platform 9. The fixed plate 1 is fixedly installed at the lower end of the machine base 2, and the mounting platform 9 is positioned above the slide table 3. An upper mold base 8 and a lower mold base 12 are provided between the mounting platform 9 and the slide table 3. The lower mold base 12 is fixedly installed at the upper end of the slide table 3. The upper mold base 8 is slidably installed between the mounting platform 9 and the fixed plate 1 via a first limiting member. A hydraulic cylinder 10 is provided at the upper end of the mounting platform 9, and the output end of the hydraulic cylinder 10 is fixedly connected to the upper mold base 8. During injection molding, the material is fed into the upper mold base 8 through a pressurizing device for preheating. After preheating, the cylinder 19 pushes the upper mold base 8 to fall, and the first limiting member guides the upper mold base 8. After the upper mold base 8 and the lower mold base 12 are closed, the mold is cooled and solidified.

[0031] Regarding regulatory mechanisms:

[0032] The adjustment mechanism includes a screw 13, which is rotatably mounted between two fixed blocks 4. A motor 7 is fixedly mounted on the outside of one of the fixed blocks 4. The output end of the motor 7 is fixedly connected to the screw 13. A nut seat is sleeved on the outside of the screw 13. The slide table 3 is fixedly connected to the nut seat. Second limiting members for guiding the slide table 3 are provided on the left and right sides of the screw 13.

[0033] Motor 7 controls screw 13 to rotate. During the rotation of screw 13, it cooperates with nut seat and drives nut seat to move along screw 13. Since nut seat is fixed to slide table 3, slide table 3 is slidably set on the upper end of machine base 2. When nut seat moves, slide table 3 will also move horizontally to complete the movement of slide table 3 into and out of upper and lower mold base 12. The second limiting member will guide the horizontal movement of slide table 3.

[0034] Specifically, the first limiting component includes multiple support rods 11. The support rods 11 are fixedly mounted on the upper end of the fixed plate 1, and the upper ends of the support rods 11 are fixedly connected to the mounting platform 9. The support rods 11 pass through the upper mold base 8, and the upper mold base 8 is slidably connected to the support rods 11. When the hydraulic cylinder 10 pushes the upper mold base 8, the upper mold base 8 slides along the rod body of the support rods 11. The support rods 11 guide the upper mold base 8 by cooperating with it, ensuring that the upper mold base 8 can stably cooperate with the lower mold base 12.

[0035] Specifically, the second limiting component includes a limiting rod 14, which is fixedly disposed between two fixed blocks 4. The limiting rod 14 passes through the slide table 3 and is slidably connected to the slide table 3. When the nut seat moves along the rod of the screw 13, causing the slide table 3 to move synchronously, the slide table 3 will also slide along the rod of the limiting rod 14. The limiting rod 14 limits the slide table 3 by cooperating with the slide table 3, thereby improving the stability of the slide table 3 during horizontal movement.

[0036] The first positioning part is used in conjunction with the second positioning part. Specifically, the first positioning part includes a positioning plate 16, which is fixedly installed on the front and rear sides of the slide table 3. The positioning plate 16 has multiple positioning holes 17.

[0037] The second positioning part includes a positioning bracket 18, which is fixedly installed on the front and rear sides of the base 2. A movable plate 20 is provided on the positioning bracket 18, and the movable plate 20 is slidably installed inside the positioning bracket 18. A cylinder 19 is fixedly installed on the outer side of the positioning bracket 18, and the output end of the cylinder 19 is fixedly connected to the movable plate 20. Multiple positioning pins 21 are provided on the side of the movable plate 20 facing the slide table 3. The positioning pins 21 are fixedly connected to the movable plate 20 and cooperate with the positioning holes 17.

[0038] After the slide table 3 is pushed below the upper mold base 8, the hydraulic cylinder 10 pushes the upper mold base 8 down. Before the upper mold base 8 and the lower mold base 12 close, the positioning plate 16 fixed to the slide table 3 will move into the positioning bracket 18. The cylinder 19 on the positioning bracket 18 will be activated to push the movable plate 20, pushing the positioning pin 21 on the movable plate 20 into the positioning hole 17 opened on the outside of the positioning plate 16, thereby locking the slide table 3 and the machine base 2, ensuring that the position of the slide table 3 will not shift when the mold is closed, and improving the stability of the mold closing.

[0039] It is worth explaining in detail that the fixing block 4 is equipped with multiple fixing bolts 5. The fixing bolts 5 pass through the fixing block 4 and are threadedly connected to the bolt holes opened at the upper end of the fixing plate 1. When removing the adjusting mechanism and the slide table 3 from the machine base 2, first release the fixing between the fixing block 4 and the machine base 2, and then unscrew the fixing bolts 5 on the fixing block 4 from the bolt holes at the upper end of the machine base 2. Disassembly and maintenance are convenient.

[0040] In a preferred embodiment, a damping block is provided on the side of the fixed block 4 near the slide table 3. The damping block is fixedly connected to the fixed block 4. A slot 15 is provided on the side of the slide table 3 facing the fixed block 4, and the damping block engages with the slot 15. When the slide table 3 is pushed to the maximum translation distance, the damping block on the fixed block 4 will engage with the slot 15 on the side of the slide table 3, limiting the slide table 3 and preventing direct collision between the fixed block 4 and the slide table 3, thus improving the service life of the slide table 3.

[0041] How this application works:

[0042] The slide 3 adopts a horizontal pushing design. After cooling is complete, the adjusting mechanism will move the slide 3 out from under the mold closing mechanism. Operators can directly perform operations such as mold loading, unloading, or insert placement from outside the machine, avoiding the need to put their arms into the equipment, reducing operating difficulty and safety risks. After the slide 3 is pushed under the mold closing mechanism, before the mold closing mechanism falls, the first positioning part will cooperate with the second positioning part to lock the slide 3 to the outside of the machine base 2, ensuring that the slide 3 will not shake when the mold is closed, thus improving the injection molding stability of the product.

[0043] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A brush holder injection molding equipment, comprising a base (2), wherein a slide (3) is provided at the upper end of the base (2), the slide (3) is slidably connected to the base (2), and a mold closing mechanism is provided above the slide (3), characterized in that: The upper end of the base (2) is provided with two fixed blocks (4), the slide (3) is placed between the two fixed blocks (4), the fixed blocks (4) are detachably connected to the base (2), and an accordion-type sleeve (6) is movably arranged between the fixed blocks (4) and the slide (3). The accordion-type sleeve (6) is provided with an adjustment mechanism for controlling the horizontal movement of the slide (3). The slide (3) is provided with a first positioning part on the front and rear sides, and the machine base (2) is provided with a second positioning part on the front and rear sides. When the slide (3) moves to the bottom of the mold closing mechanism, the first positioning part and the second positioning part engage.

2. A brush holder injection molding apparatus according to claim 1, characterized in that: The mold closing mechanism includes a fixed plate (1) and a mounting platform (9). The fixed plate (1) is fixedly disposed at the lower end of the machine base (2). The mounting platform (9) is placed above the slide (3). An upper mold base (8) and a lower mold base (12) are provided between the mounting platform (9) and the slide (3). The lower mold base (12) is fixedly disposed at the upper end of the slide (3). The upper mold base (8) is slidably disposed between the mounting platform (9) and the fixed plate (1) through a first limiting member. A hydraulic cylinder (10) is provided at the upper end of the mounting platform (9). The output end of the hydraulic cylinder (10) is fixedly connected to the upper mold base (8).

3. A brush holder injection molding apparatus according to claim 1, characterized in that: The adjusting mechanism includes a screw (13), which is rotatably disposed between two fixed blocks (4). A motor (7) is fixedly disposed on the outside of one of the fixed blocks (4). The output end of the motor (7) is fixedly connected to the screw (13). A nut seat is sleeved on the outside of the screw (13). The slide (3) is fixedly connected to the nut seat. Second limiting members for guiding the slide (3) are provided on the left and right sides of the screw (13).

4. The brush holder injection molding apparatus according to claim 2, wherein: The first limiting member includes multiple support rods (11), the support rods (11) are fixedly disposed on the upper end of the fixed plate (1), the upper end of the support rods (11) is fixedly connected to the mounting platform (9), the support rods (11) pass through the upper mold base (8), and the upper mold base (8) is slidably connected to the support rods (11).

5. A brush holder injection molding apparatus according to claim 3, characterized in that: The second limiting member includes a limiting rod (14), which is fixedly disposed between the two fixed blocks (4). The limiting rod (14) passes through the slide (3) and is slidably connected to the slide (3).

6. A brush holder injection molding apparatus according to claim 1, characterized in that: The first positioning part includes a positioning plate (16), which is fixedly disposed on the front and rear sides of the slide (3), and the positioning plate (16) is provided with a plurality of positioning holes (17).

7. A brush holder injection molding apparatus according to claim 6, characterized in that: The second positioning part includes a positioning bracket (18), which is fixedly installed on the front and rear sides of the base (2). A movable plate (20) is provided on the positioning bracket (18), which is slidably installed inside the positioning bracket (18). A cylinder (19) is fixedly installed on the outside of the positioning bracket (18). The output end of the cylinder (19) is fixedly connected to the movable plate (20). Multiple positioning pins (21) are provided on the side of the movable plate (20) facing the slide (3). The positioning pins (21) are fixedly connected to the movable plate (20) and cooperate with the positioning hole (17).

8. The brush holder injection molding equipment according to claim 1, characterized in that: The fixing block (4) has a damping block on the side near the slide (3). The damping block is fixedly connected to the fixing block (4). The slide (3) has a slot (15) on the side facing the fixing block (4). The damping block engages with the slot (15).

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