Upper mold structure of injection mold for top cover of automobile shock absorber

Abstract

The utility model discloses an upper mold structure of an injection mold for a top cover of a vehicle shock absorber. The upper mold structure comprises an upper machine table connecting plate, a base, an upper mold base and an upper mold plate, the upper machine table connecting plate is connected to the top end of the base, a hot runner system is connected to the base, and a hot nozzle is connected to the bottom of the hot runner system; the upper die base is connected to the bottom of the base, a groove used for containing the lower die structure is formed in the bottom of the upper die base, the upper die plate is connected to the top end of the groove, and the hot nozzle penetrates through the base and the upper die base and extends to a sprue of the upper die plate. A telescopic device is connected to the base, the power output end of the telescopic device is connected with a lifting plate, the bottom of the lifting plate is connected with a lifting sleeve, the bottom end of the lifting sleeve is connected with a cutter, and the telescopic device drives the cutter to ascend or descend. Compared with the prior art, according to the upper die structure, after the top cover is cooled and formed, the material head can be directly cut off through the cutter, the subsequent punching procedure is not needed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an upper mold structure of an injection mold for a top cover of a vehicle shock absorber. Background Art

[0002] Automobile shock absorbers are generally composed of a piston rod and a shock absorber cylinder. One end of the piston rod moves in the shock absorber cylinder, and a dust cover is installed on the shock absorber cylinder. The piston rod extends and retracts after passing through the dust cover. In the development of the automobile industry, in order to reduce the weight of the car, the top cover has been gradually replaced by a plastic top cover from the original pure metal top cover.

[0003] like Figure 1 As shown, the plastic top cover 9 is processed by injection molding. After injection molding, a head (a riser of the injection molded product) will be generated at the center hole 901 of the plastic top cover 9. The traditional mold cannot punch out the head during the injection molding process, so an additional punching process is required, that is, the head of the plastic top cover is cut off by a punching device, which greatly reduces the production efficiency. Utility Model Content

[0004] The utility model aims to provide an upper mold structure of an injection mold for a vehicle shock absorber top cover. After the top cover is cooled and formed, the upper mold structure can directly cut off the material head by a cutter without the need for a subsequent punching process, thereby improving production efficiency and solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A upper mold structure of an injection mold for a vehicle shock absorber top cover, comprising an upper machine platform connecting plate, a base, an upper mold base and an upper mold plate; the upper machine platform connecting plate is connected to the top of the base, the base is connected to a hot runner system, and the bottom of the hot runner system is connected to a hot nozzle; the upper mold base is connected to the bottom of the base, the bottom of the upper mold base is provided with a groove for accommodating a lower mold structure, the upper mold plate is connected to the top of the groove, the bottom end of the upper mold plate is provided with an upper mold groove, the hot nozzle passes through the base and the upper mold base and extends to the gate at the top of the upper mold groove; the base is connected to a telescopic device, the power output end of the telescopic device is connected to a lifting plate, the bottom of the lifting plate is connected to a lifting sleeve, the bottom end of the lifting sleeve is connected to a cutter, and the telescopic device drives the cutter to rise or fall.

[0007] A further improvement scheme of the utility model is that a mounting groove is provided at the top of the base, and the hot runner system is connected to the mounting groove; the hot runner system includes a hot runner plate, the top of the hot runner plate is connected to an injection nozzle, and multiple hot nozzles are connected to the bottom of the hot runner plate; the top of the upper machine connecting plate is connected to a positioning sleeve, and the injection nozzle passes through the positioning sleeve.

[0008] A further improvement scheme of the utility model is that the hot runner system also includes a heating element, a thermal sensor and a temperature controller, a cable connector is connected to the side of the base, a wiring groove and a drainage groove connected to the installation groove are provided above the base, one end of the cable is connected to the heating element, the thermal sensor and the temperature controller, and the other end passes through the wiring groove and is connected to the cable connector.

[0009] A further improvement of the utility model is that the telescopic device is an oil cylinder, the oil cylinder is connected to the base, and the shaft end of the oil cylinder is connected to the lifting plate; an oil inlet channel and an oil return channel are provided in the base, one end of the oil inlet channel and the oil return channel is connected to the oil cylinder, and the other end is connected to a hydraulic joint.

[0010] A further improvement of the utility model is that the oil cylinders are symmetrically arranged at both ends of the lifting plate.

[0011] A further improvement of the utility model is that a guide rod is connected to the bottom end of the lifting plate, and the guide rod is slidably matched with the upper die seat.

[0012] A further improvement of the utility model is that a protective sleeve is connected to the upper part of the lifting plate, the hot nozzle is located inside the protective sleeve, and the lifting sleeve is slidably matched with the outer wall of the protective sleeve.

[0013] A further improvement of the utility model is that the cutter is in a circular ring shape, the cutter is connected to the outer wall of the bottom end of the lifting sleeve, and the bottom end of the cutter is a ring-shaped cutting edge.

[0014] A further improvement of the utility model is that cooling water channels are provided in the upper die base and the upper die plate.

[0015] Beneficial effects of the utility model:

[0016] The upper mold structure of the injection mold for the vehicle shock absorber top cover of the utility model can directly cut off the material head by a cutter after the top cover is cooled and formed, without the need for a subsequent punching process, thereby improving production efficiency.

[0017] The upper mold structure of the injection mold for the vehicle shock absorber top cover of the utility model has a drainage groove above the base, which is convenient for draining condensed water in the installation groove.

[0018] In the upper mold structure of the injection mold for the vehicle shock absorber top cover of the utility model, the oil cylinder supplies oil through the concealed oil inlet channel and the oil return channel, thereby avoiding the problem that the traditional exposed pipe is easy to be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the top cover.

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 3It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 4 It is a partial structural schematic diagram of the utility model.

[0023] Figure 5 It is a schematic diagram of the hot runner system structure of the utility model.

[0024] Figure 6 This is a schematic diagram of the connection between the oil cylinder and the lifting plate of the utility model.

[0025] Figure 7 It is a schematic diagram of the upper template structure of the utility model.

[0026] Figure 8 for Figure 7 Left view of .

[0027] Fig. 9 for Figure 8 Cross-sectional view at AA in the middle.

[0028] Fig.10 for Fig. 9 A partial enlarged view of point B in the middle.

[0029] In the figure: 1-upper machine connecting plate, 101-positioning sleeve, 2-base, 201-mounting groove, 202-wiring groove, 203-drainage groove, 3-upper mold base, 301-groove, 302-cooling water channel, 4-upper mold plate, 401-upper mold groove, 402-gate, 5-hot runner system, 501-hot nozzle, 502-hot runner plate, 503-injection nozzle, 6-oil cylinder, 601-oil inlet channel, 602-oil return channel, 603-hydraulic joint, 7-lifting plate, 701-lifting sleeve, 702-cutter, 703-guide rod, 704-protective cover, 8-cable connector, 9-top cover, 901-center hole. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Example 1: Figures 1 to 10As shown, an upper mold structure of an injection mold for a vehicle shock absorber top cover comprises an upper machine platform connecting plate 1, a base 2, an upper mold base 3 and an upper mold plate 4; the upper machine platform connecting plate 1 is connected to the top of the base 2, a hot runner system 5 is connected to the base 2, and a hot nozzle 501 is connected to the bottom of the hot runner system 5; the upper mold base 3 is connected to the bottom of the base 2, two grooves 301 for accommodating the lower mold structure are provided at the bottom of the upper mold base 3, two upper mold plates 4 are connected to the top of the grooves 301, and two upper mold grooves 401 are provided at the bottom of each upper mold plate 4, and the hot nozzle 501 passes through the base 2 and the upper mold base 3 and extends to the gate 402 at the top of the upper mold groove 401; a telescopic device is connected to the base 2, a lifting plate 7 is connected to the power output end of the telescopic device, a lifting plate 7 is connected to the bottom of the lifting plate 7, a lifting sleeve 701 is connected to the bottom of the lifting sleeve 701, a cutter 702 is connected to the bottom of the lifting sleeve 701, and the telescopic device drives the cutter 702 to rise or fall.

[0032] A mounting groove 201 is provided at the top of the base 2, and the hot runner system 5 is connected to the mounting groove 201; the hot runner system 5 includes a hot runner plate 502, and an injection nozzle 503 is connected to the top of the hot runner plate 502, and multiple hot nozzles 501 are connected to the bottom of the hot runner plate 502; in this embodiment, there are four hot nozzles 501, two in a group, and a group of hot nozzles 501 corresponds to a lifting plate 7 and an upper template 4; a positioning sleeve 101 is connected to the top of the upper machine platform connecting plate 1, and the injection nozzle 503 passes through the positioning sleeve 101.

[0033] The hot runner system 5 also includes a heating element, a thermal sensor and a temperature controller. A cable connector 8 is connected to the side of the base 2. A wiring groove 202 and a drainage groove 203 connected to the installation groove 201 are provided above the base 2. One end of the cable is connected to the heating element, the thermal sensor and the temperature controller, and the other end passes through the wiring groove 202 and is connected to the cable connector 8.

[0034] The telescopic device is a cylinder 6, which is connected to the base 2, and the axial end of the cylinder 6 is connected to the lifting plate 7; an oil inlet channel 601 and an oil return channel 602 are provided in the base 2, one end of the oil inlet channel 601 and the oil return channel 602 is connected to the cylinder 6, and the other end is connected to a hydraulic joint 603.

[0035] The oil cylinders 6 are symmetrically arranged at both ends of the lifting plate 7 .

[0036] The bottom end of the lifting plate 7 is connected with a guide rod 703 , and the guide rod 703 is slidably matched with the upper die seat 3 .

[0037] A protective cover 704 is connected to the upper portion of the lifting plate 7 , the hot nozzle 501 is located inside the protective cover 704 , and the lifting cover 701 is slidably matched with the outer wall of the protective cover 704 .

[0038] The cutter 702 is in a circular ring shape and is connected to the outer wall of the bottom end of the lifting sleeve 701. The bottom end of the cutter 702 is a circular cutting edge.

[0039] A cooling water channel 302 is provided in the upper die base 3 and the upper die plate 4 .

[0040] The specific working principle of the utility model is as follows:

[0041] During operation, the hot melt liquid enters the hot runner plate 502 from the injection nozzle 503, and enters the cavity surrounded by the upper mold groove 401 and the lower mold groove from the gate 402 of the upper mold plate 4 through the hot nozzle 501. After the top cover 9 is cooled and formed, the cylinder 6 extends to drive the lifting plate 7 to move downward, and the lifting plate 7 drives the lifting sleeve 701 to move downward. After the annular cutter 702 on the lifting sleeve 701 cuts off the material head, the cylinder 6 retracts, and the annular cutter 702 moves upward to retract above the gate 402 so that when the next top cover 9 is produced, the hot melt liquid can smoothly enter the cavity.

[0042] The above implementation is only to illustrate the technical concept and features of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An upper mold structure of an injection mold for a vehicle shock absorber top cover, characterized in that: The invention comprises an upper machine connection plate (1), a base (2), an upper mold base (3) and an upper mold plate (4); the upper machine connection plate (1) is connected to the top of the base (2); a hot runner system (5) is connected to the base (2); a hot nozzle (501) is connected to the bottom of the hot runner system (5); the upper mold base (3) is connected to the bottom of the base (2); a groove (301) for accommodating a lower mold structure is provided at the bottom of the upper mold base (3); the upper mold plate (4) is connected to the top of the groove (301); An upper die groove (401) is provided at the bottom end of the plate (4); a hot nozzle (501) passes through the base (2) and the upper die base (3) and extends to the gate (402) at the top end of the upper die groove (401); a telescopic device is connected to the base (2); a power output end of the telescopic device is connected to a lifting plate (7); a lifting sleeve (701) is connected to the bottom of the lifting plate (7); a cutter (702) is connected to the bottom end of the lifting sleeve (701); and the telescopic device drives the cutter (702) to rise or fall.

2. The upper mold structure of the injection mold for the vehicle shock absorber top cover according to claim 1, characterized in that: The top of the base (2) is provided with a mounting groove (201), and the hot runner system (5) is connected to the mounting groove (201); the hot runner system (5) comprises a hot runner plate (502), the top of the hot runner plate (502) is connected to an injection nozzle (503), and a plurality of hot nozzles (501) are connected to the bottom of the hot runner plate (502); the top of the upper machine platform connecting plate (1) is connected to a positioning sleeve (101), and the injection nozzle (503) passes through the positioning sleeve (101).

3. The upper mold structure of the injection mold for the vehicle shock absorber top cover according to claim 2, characterized in that: The hot runner system (5) further comprises a heating element, a thermal sensor and a temperature controller; a cable connector (8) is connected to the side of the base (2); a wiring groove (202) and a drainage groove (203) communicating with the mounting groove (201) are provided above the base (2); one end of the cable is connected to the heating element, the thermal sensor and the temperature controller, and the other end passes through the wiring groove (202) and is connected to the cable connector (8).

4. The upper mold structure of the injection mold for the vehicle shock absorber top cover according to claim 1, characterized in that: The telescopic device is an oil cylinder (6), which is connected to the base (2), and the shaft end of the oil cylinder (6) is connected to the lifting plate (7); an oil inlet passage (601) and an oil return passage (602) are provided in the base (2), one end of the oil inlet passage (601) and the oil return passage (602) are connected to the oil cylinder (6), and the other end is connected to a hydraulic joint (603).

5. The upper mold structure of the injection mold for the vehicle shock absorber top cover according to claim 4, characterized in that: The oil cylinders (6) are symmetrically arranged at both ends of the lifting plate (7).

6. The upper mold structure of the injection mold for the vehicle shock absorber top cover according to claim 1, characterized in that: The bottom end of the lifting plate (7) is connected to a guide rod (703), and the guide rod (703) is slidably matched with the upper die seat (3).

7. The upper mold structure of the injection mold for the vehicle shock absorber top cover according to claim 1, characterized in that: A protective sleeve (704) is connected to the upper portion of the lifting plate (7), the hot nozzle (501) is located inside the protective sleeve (704), and the lifting sleeve (701) is slidably matched with the outer wall of the protective sleeve (704).

8. The upper mold structure of the injection mold for the vehicle shock absorber top cover according to claim 7, characterized in that: The cutter (702) is in the shape of a circular ring. The cutter (702) is connected to the outer wall of the bottom end of the lifting sleeve (701). The bottom end of the cutter (702) is a circular cutting edge.

9. The upper mold structure of the injection mold for the vehicle shock absorber top cover according to claim 1, characterized in that: The upper die base (3) and the upper die plate (4) are provided with cooling water channels (302).

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