Water gap shearing device for thick-wall PC transparent part of car lamp

Abstract

The utility model relates to a water gap shearing device for a thick-wall PC transparent part of a car lamp, and aims to solve the technical problem that when a punching cutter on the bottom side of a current hydraulically-pushed punching frame is used for cutting off, a broken glue inlet convex column is easily caused to jump outwards due to extrusion force to threaten personnel, and the water gap shearing device comprises the punching frame and a protection structure, the protection structure is arranged on the outer side of the bottom of the punching frame. The protection structure comprises a fixing plate and a U-shaped protection plate; the fixing plate is fixedly arranged on the outer side of the bottom of the punching frame. The U-shaped protection plate is arranged at the outer end of the fixing plate; wherein the U-shaped protection plate is matched with the front end and the two sides of the space between the punching frame and the placing table in a closed mode, and the U-shaped protection plate has the advantage that the front end and the two sides of the space between the punching frame and the placing table are closed through the U-shaped protection plate when the punching tool at the bottom of the punching frame cuts off the automobile lampshade injection molding part on the placing table.

Description

Technical Field

[0001] The utility model relates to the technical field of headlight cover processing, and particularly relates to a gate shearing device for a thick-wall PC transparent part of a vehicle headlight. Background Technique

[0002] When designing the gate of similar products such as thick-wall (PC material) transparent parts of automotive headlights, in order to meet the injection molding process debugging, the gate is made relatively wide and thick. There will be a gate protrusion column at the edge of the injection-molded headlight cover, which needs to be sheared off.

[0003] The gate protrusion column formed by the gate is cut off by a gate shearing machine. However, during the punching process, the punching tool at the bottom side of the punching frame pushed by hydraulic pressure is prone to cause the broken gate protrusion column to bounce outwards due to the extrusion force during cutting, which poses a threat to personnel.

[0004] In view of this, we propose a gate shearing device for a thick-wall PC transparent part of a vehicle headlight. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a gate shearing device for a thick-wall PC transparent part of a vehicle headlight, so as to solve the technical problem that during the cutting by the punching tool at the bottom side of the punching frame pushed by hydraulic pressure, the broken gate protrusion column is prone to bounce outwards due to the extrusion force, which poses a threat to personnel.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a gate shearing device for a thick-wall PC transparent part of a vehicle headlight, including a machine box, a machine frame is fixedly arranged on the top of the machine box, a hydraulic cylinder body is fixedly arranged on the top of the machine frame, the bottom of the piston rod of the hydraulic cylinder body is fixedly provided with a punching frame, a placing table is fixedly arranged on the top side of the machine box corresponding to the punching frame, and a protection structure is also included;

[0007] The protection structure is arranged on the outer side of the bottom of the punching frame;

[0008] The protection structure includes a fixing plate and a U-shaped protection plate;

[0009] The fixing plate is fixedly arranged on the outer side of the bottom of the punching frame;

[0010] The U-shaped protection plate is arranged at the outer end of the fixing plate;

[0011] Wherein, the U-shaped protection plate is in sealing fit with the front end and both sides of the space between the punching frame and the placing table.

[0012] Preferably, a slag discharge channel is fixedly arranged at the impurity discharge port of the machine box.

[0013] Preferably, the protection structure further includes a connecting plate;

[0014] The connecting plate is movably arranged above the fixed plate through three springs arranged at equal intervals;

[0015] Wherein, the outer end of the connecting plate is fixedly connected to the inner top of the horizontal section of the U-shaped protective plate;

[0016] Wherein, the inner side of the horizontal section of the U-shaped protective plate is in contact and cooperation with the outer end of the fixed plate.

[0017] Preferably, two guiding blocks are symmetrically and fixedly arranged on the inner side of the horizontal section of the U-shaped protective plate, two sliding grooves are symmetrically arranged at the outer end of the fixed plate, and the sliding grooves are in sliding cooperation with the guiding blocks.

[0018] Preferably, the guiding blocks are designed with a trapezoidal structure, and the guiding blocks are adapted to the sliding grooves.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. By arranging the U-shaped protective plate, when the punching cutter at the bottom of the punching frame cuts the plastic injection molded part of the lamp housing on the placing table, the U-shaped protective plate has the advantage of closing the front end and both sides of the space between the punching frame and the placing table, solving the problem that the plastic injection raised column that is easily disconnected due to the extrusion force may bounce outwards when the punching cutter at the bottom side of the hydraulically pushed punching frame cuts, posing a threat to personnel.

[0021] 2. By arranging the connecting plate and the springs, when the punching cutter at the bottom of the punching frame cuts the plastic injection molded part of the lamp housing on the placing table, the U-shaped protective plate touches the top side of the machine case and is lifted, the springs play a connecting role, the U-shaped protective plate is always closed during cutting, and after the punching frame moves upwards, the springs push the U-shaped protective plate to move downwards, and the downward movement position of the U-shaped protective plate is limited and will not move downwards excessively.

[0022] 3. By arranging the guiding blocks and the sliding grooves, when the U-shaped protective plate moves longitudinally, the sliding cooperation between the guiding blocks and the sliding grooves limits the U-shaped protective plate in the longitudinal direction during movement, making the longitudinal movement of the U-shaped protective plate stable. Description of the Drawings

[0023] Figure 1 is the front view overall structure schematic diagram of the present utility model;

[0024] Figure 2 is the rear view overall structure schematic diagram of the present utility model;

[0025] Figure 3 is the partial sectional view schematic diagram of the protective structure of the present utility model;

[0026] Figure 4 is the connection structure schematic diagram of the U-shaped protective plate of the present utility model;

[0027] In the figure: 1, chassis; 2, frame; 3, hydraulic cylinder body; 4, punching frame; 5, placing table; 6, protective structure; 7, slag discharge channel;

[0028] 601, fixed plate; 602, connecting plate; 603, spring; 604, U-shaped protective plate; 605, guide block;

[0029] 6011, chute. Specific implementation mode

[0030] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0031] Embodiment 1: A gate shearing device for a thick-wall PC transparent part of a vehicle lamp, see Figures 1 to 4 , including a chassis 1, a frame 2 is fixedly arranged on the top of the chassis 1, a hydraulic cylinder body 3 is fixedly arranged on the top of the frame 2, the bottom of the piston rod of the hydraulic cylinder body 3 is fixedly provided with a punching frame 4, a placing table 5 is fixedly arranged on the top side of the chassis 1 corresponding to the punching frame 4, and a protective structure 6 is also included;

[0032] The protective structure 6 is arranged on the outer side of the bottom of the punching frame 4;

[0033] The protective structure 6 includes a fixed plate 601 and a U-shaped protective plate 604;

[0034] The fixed plate 601 is fixedly arranged on the outer side of the bottom of the punching frame 4; the U-shaped protective plate 604 is arranged at the outer end of the fixed plate 601; wherein, the U-shaped protective plate 604 is in sealing fit with the front end and both sides of the space between the punching frame 4 and the placing table 5.

[0035] By setting the U-shaped protective plate 604, when the punching cutter at the bottom of the punching frame 4 cuts the injection molded part of the vehicle lamp cover on the placing table 5, the U-shaped protective plate 604 has the advantage of closing the front end and both sides of the space between the punching frame 4 and the placing table 5, solving the problem that the broken glue protruding column is likely to bounce outwards due to the extrusion force when the punching cutter at the bottom side of the punching frame 4 pushed by the hydraulic pressure cuts, posing a threat to personnel.

[0036] Specifically, a slag discharge channel 7 is fixedly arranged at the impurity discharge port of the chassis 1, and the broken glue protruding column after cutting falls into the impurity discharge cavity of the chassis 1 from the opening on the placing table 5 and is discharged along the slag discharge channel 7.

[0037] Furthermore, the protective structure 6 further includes a connecting plate 602;

[0038] The connecting plate 602 is movably arranged above the fixed plate 601 through three equidistantly arranged springs 603; both ends of the springs 603 are fixedly connected to the connecting plate 602 and the fixed plate 601 respectively, and the elastic coefficient of the springs 603 is selected and used by technicians in this field according to the actual situation; among them, the outer end of the connecting plate 602 is fixedly connected to the inner top of the transverse section of the U-shaped protection plate 604; among them, the inner side of the transverse section of the U-shaped protection plate 604 is in contact and cooperation with the outer end of the fixed plate 601.

[0039] By arranging the connecting plate 602 and the springs 603, when the punching cutter at the bottom of the punching frame 4 cuts the plastic injection molded headlight cover on the placement table 5, the U-shaped protection plate 604 touches the top side of the chassis 1 and is lifted up, and the springs 603 play a connecting role. The U-shaped protection plate 604 is always closed during cutting, and after the punching frame 4 moves upward, the springs 603 push the U-shaped protection plate 604 to move downward. The downward movement position of the U-shaped protection plate 604 is limited and will not move downward excessively.

[0040] Furthermore, two guiding blocks 605 are symmetrically and fixedly arranged on the inner side of the transverse section of the U-shaped protection plate 604, and two sliding grooves 6011 are symmetrically formed on the outer end of the fixed plate 601. The sliding grooves 6011 are in sliding cooperation with the guiding blocks 605; the guiding blocks 605 are designed with a trapezoidal structure, and the guiding blocks 605 are adapted to the sliding grooves 6011.

[0041] By arranging the guiding blocks 605 and the sliding grooves 6011, when the U-shaped protection plate 604 moves longitudinally, the sliding cooperation between the guiding blocks 605 and the sliding grooves 6011 limits the U-shaped protection plate 604 in the longitudinal direction during movement, so that the longitudinal movement of the U-shaped protection plate 604 remains stable.

[0042] Working principle: When using the device of the present utility model, place the injection molded headlight cover in the corresponding placement mold cavity on the placement table 5. The glue inlet protruding columns around the headlight cover are suspended corresponding to the openings on the placement table 5. The hydraulic cylinder body 3 pushes the punching frame 4 downward, and the U-shaped protection plate 604 moves downward accordingly. The bottom end of the U-shaped protection plate 604 first touches the top side of the chassis 1. As the U-shaped protection plate 604 continues to move downward, the U-shaped protection plate 604 is lifted up, the guiding blocks 605 move relative to the sliding grooves 6011, and the connecting plate 602 moves upward to stretch the springs 603 until the punching cutter at the bottom of the punching frame 4 cuts the plastic injection molded headlight cover on the placement table 5. The U-shaped protection plate 604 closes the front end and both sides of the space between the punching frame 4 and the placement table 5 for protection to prevent the cut glue inlet protruding columns from popping out. The cut glue inlet protruding columns fall into the slag discharge cavity of the chassis 1 from the openings on the placement table 5 and are discharged along the slag discharge channel 7. The hydraulic cylinder body 3 drives the punching frame 4 to move upward, and the springs 603 push the U-shaped protection plate 604 to move downward until the springs 603 are no longer stretched, and then take out the cut headlight cover.

[0043] The embodiments disclosed in the present utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A nozzle shearing device for thick-walled PC transparent parts of vehicle lamps, comprising a chassis (1), a frame (2) fixedly disposed on the top of the chassis (1), a hydraulic cylinder body (3) fixedly disposed on the top of the frame (2), a punching frame (4) fixedly disposed on the bottom of the piston rod of the hydraulic cylinder body (3), a placing table (5) fixedly disposed on the top side of the chassis (1) corresponding to the punching frame (4), characterized in that: Also includes: A protective structure (6) is arranged outside the bottom of the punching frame (4); The protective structure (6) comprises: A fixed plate (601) is fixedly arranged on the outer side of the bottom of the punching frame (4); A U-shaped protective plate (604) arranged at the outer end of the fixing plate (601); The U-shaped protective plate (604) is in sealed cooperation with the front end and both sides of the space between the punching frame (4) and the placement table (5).

2. A nozzle shearing device for thick-walled PC transparent parts of vehicle lamps as claimed in claim 1, characterized in that: The impurity discharge port of the chassis (1) is provided with a slag discharge channel (7).

3. A nozzle shearing device for thick-walled PC transparent parts of vehicle lamps as claimed in claim 1, characterized in that: The protective structure (6) further comprises: A connecting plate (602) is movably disposed above the fixing plate (601) via three equidistantly arranged springs (603); Wherein, the outer end of the connecting plate (602) is fixedly connected to the top of the inner side of the transverse section of the U-shaped protective plate (604); The inner side of the transverse section of the U-shaped protective plate (604) is in contact with the outer end of the fixing plate (601).

4. A nozzle shearing device for thick-walled PC transparent parts of vehicle lamps as claimed in claim 3, characterized in that: Two guide blocks (605) are symmetrically fixed on the inner side of the transverse section of the U-shaped protective plate (604), and two slide grooves (6011) are symmetrically opened on the outer end of the fixed plate (601), and the slide grooves (6011) are slidably matched with the guide blocks (605).

5. A nozzle shearing device for thick-walled PC transparent parts of vehicle lamps as claimed in claim 4, characterized in that: The guide block (605) is designed with a trapezoidal structure, and the guide block (605) is adapted to the slide groove (6011).

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