CN210705156U - Plastic plate punching machine - Google Patents

Abstract

The utility model relates to a plastic plate punching machine, which comprises a forming die, a base and a pressing plate which can lift relative to the base; the forming die comprises a forming cutting die, an upper die base plate, a lower die base plate, a clamp, a spring damper, a first base plate, a guide pillar and a guide sleeve, wherein the clamp is used for clamping the forming cutting die at the lower side of the upper die base plate; one end of the spring damper is connected with the lower end of the upper die base plate, and the other end of the spring damper is connected with the upper end of the lower die base plate. The utility model discloses following beneficial effect has: 1. the molding knife die is uniformly stressed, and the precision of a workpiece is high; 2. the forming cutting die is easy to disassemble and replace; 3. the molding cutting die is stable in clamping.

Description

Plastic plate punching machine

Technical Field

The utility model belongs to the technical field of the technique of plastics panel processing and specifically relates to a plastics panel die cutting machine is related to.

Background

Plastics have good insulating properties, the material is light, can not rust, good characteristics such as plasticity, in the process of daily industrial production, often need to cut into various shapes with the plastics panel in order to satisfy corresponding industry demand.

Plastic sheets are generally punched by a punching machine, which includes a manual punch, a backing plate and a forming die. The manual punching machine is provided with a base and a pressing plate which can be lifted relative to the base. When punching the plastic plate, the operator stacks the backing plate, the plastic plate and the forming cutter die on the base in sequence. Wherein, the plastic plate is positioned between the backing plate and the forming cutting die, and the forming cutting die is positioned above the backing plate. During operation, the manual punching machine is started, the pressing plate descends and abuts against the pressing forming cutting die, the forming cutting die performs punching processing on the plastic plates, and after punching is completed, the pressing plate ascends to complete one-time punching.

The above prior art solutions have the following drawbacks: the blanking machine is not provided with a structure for positioning the base plate and the forming cutting die, the base plate and the forming cutting die are stacked on the base only depending on the experience of operators, and the forming cutting die needs to be moved away after each blanking is completed, and then a new plastic plate to be punched is placed again, so that the central line of the forming cutting die and the central line of the pressing plate can be greatly deviated when the forming cutting die is placed every time, the forming cutting die is subjected to unbalance loading during the blanking, the force of the cutting edge of the cutting die is uneven, the abrasion of the cutting edge of the forming cutting die is caused, and the size precision of a workpiece is finally influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plastic board die cutting machine, its technical problem that will solve is: how to make the shaping cutting die stress evenly in the blanking process.

In order to achieve the above object, the utility model provides a following technical scheme:

a plastic plate blanking machine comprises a forming die, a base and a pressing plate capable of lifting relative to the base; the forming die comprises a forming cutter die, an upper die base plate, a lower die base plate, a clamp, a spring damper, a first base plate, a guide pillar and a guide sleeve, wherein the clamp is used for clamping the forming cutter die at the lower side of the upper die base plate, the lower end of the forming cutter die is provided with a knife edge, the upper end of the forming cutter die is abutted against the upper die base plate, the lower die base plate is arranged on a base, the guide sleeve is arranged on the upper die base plate, the guide pillar is arranged on the lower die base plate, the guide sleeve is sleeved on the guide pillar and can slide relative to the guide pillar, the first base plate is arranged at the upper end of the lower die base plate, and the central lines of the first base plate, the forming cutter die and; one end of the spring damper is connected with the lower end of the upper die base plate, and the other end of the spring damper is connected with the upper end of the lower die base plate.

Through adopting above-mentioned technical scheme, clamp plate punching press punch die bedplate goes up the die bedplate and plays the guard action to the shaping cutting die, has reduced the wearing and tearing of shaping cutting die. The upper die base plate drives the forming cutting die to move downwards, when the upper die base plate moves to a certain distance, a cutting edge positioned at the lower end of the forming cutting die punches the plastic plate placed on the first base plate, and the first base plate, the forming cutting die and the pressing plate are positioned on the same central line, so that the forming cutting die cannot be subjected to unbalanced load in the stamping process, the cutting edge of the forming cutting die is uniformly subjected to stress, and a plastic workpiece with high quality is obtained. And then, the upper die base rebounds to the original state under the action of the damping spring, the forming cutting die is fixed on the fixture, so that the position of the forming cutting die does not need to be adjusted during cutting and pressing at each time, and meanwhile, the guide pillar and the guide sleeve play a good role in guiding the movement of the upper die base plate, so that the forming cutting die is not easy to deviate in the process of pressing down along with the upper die base plate, and the working stability of the forming cutting die is improved.

The utility model discloses further set up to: the shaping cutting die is the inside cavity, the equal opening of upper end and lower extreme and the even integral type structure of lateral wall thickness.

Through adopting above-mentioned technical scheme, the inside cavity of shaping cutting die and lateral wall thickness are even guarantees that it is more economized the material when satisfying use intensity.

The utility model discloses further set up to: the clamp is a flat tongs and is arranged on the upper die base plate; the flat-nose pliers are used for clamping two opposite side faces of the forming cutting die, and the upper end of the forming cutting die is abutted to the flat-nose pliers base.

Through adopting above-mentioned technical scheme, flat-nose pliers have easily the installation, can relapse the clamping, and the clamping is effectual, advantages such as convenient operation, and the clamping is relapseed and is made shaping cutting die dismantle repeatedly, easily maintenance and change of shaping cutting die.

The utility model discloses further set up to: the forming cutter die is provided with a first side wall and a second side wall which are opposite to each other, and the first side wall and the second side wall are both vertically arranged and are parallel to each other; the flat tongs are used for clamping the first side wall and the second side wall.

Through adopting above-mentioned technical scheme, vertical first lateral wall is parallel relatively with vertical second lateral wall, and the stability of parallel both sides wall of centre gripping and clamping is better, is difficult for taking place to slide with the flat-nose pliers can laminating to improve the stability at die-cut in-process shaping cutting die, shaping cutting die has the clamping and stabilizes, job stabilization's effect.

The utility model discloses further set up to: the lower die base plate is provided with a groove, the groove is the same as the first base plate in overall dimension, the first base plate is arranged in the groove, and the first base plate is higher than the groove.

Through adopting above-mentioned technical scheme, the recess provides planar limiting displacement for first backing plate, makes the backing plate more stable at die-cut in-process.

The utility model discloses further set up to: the first base plate is provided with a threaded counter bore and is connected with the lower die base plate through a screw.

Through adopting above-mentioned technical scheme, be provided with countersunk screw hole on the backing plate, can not make the screw head protrusion and influence the plastic board pressure and cut, screwed connection makes the plank dismantle lower mould bedplate relatively simultaneously, is favorable to the change and the maintenance of backing plate.

The utility model discloses further set up to: the first backing plate is a wood plate.

Through adopting above-mentioned technical scheme, plank density is high, toughness is strong, it is firm to use, and wooden backing plate has slight deformation volume at the in-process that cuts, plays the effect of buffering, is difficult for haring the shaping cutting die, makes shaping cutting die life longer.

The utility model discloses further set up to: and a second base plate is arranged at the upper end of the upper die base plate, is provided with a countersunk threaded hole and is connected to the upper die base plate through a screw.

Through adopting above-mentioned technical scheme, go up the die holder board and play the effect of carrier and bearing the impact force in the course of the work, can make the die holder board receive the damage in punching process many times, set up the second backing plate in last die holder board upper end and can play the impact of buffering punching machine to last die holder board, reduce the damage for it is longer to go up die holder life, and countersunk screw hole makes the screw head not expose in the backing plate simultaneously, and the clamp plate is difficult for crushing the screw.

To sum up, the utility model discloses a beneficial technological effect does: 1. the molding knife die is uniformly stressed, and the precision of a workpiece is high; 2. The forming cutting die is easy to disassemble and replace; 3. the molding cutting die is stable in clamping.

Drawings

FIG. 1 is a schematic structural view of the plastic plate blanking machine of the present invention;

fig. 2 is a schematic structural view of the plastic plate cutting press according to another view angle of the present invention;

FIG. 3 is a cross-sectional view of the plastic panel die cutter of FIG. 2;

fig. 4 is a schematic structural view of the forming cutter die of the present invention.

In the figure, 1, a pressure plate; 2. a base; 3. forming a cutting die; 4. an upper die base plate; 5. a lower die base plate; 6. a clamp; 7. a spring damper; 8. a first backing plate; 9. a guide post; 10. a guide sleeve; 11. a groove; 12. countersunk threaded holes; 13. a second backing plate; 14. a first side wall; 15. a second side wall.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a plastic plate die cutting machine, including forming die, base 2 and the clamp plate 1 that can go up and down relative to base 2, clamp plate 1 can be rectangle or circular wait shape. Here, it should be noted that: the structure of the pressure plate 1 lifting relative to the base 2 is a common technology in the prior art, and is not described herein again. The forming die comprises a forming cutter die 3, an upper die base plate 4, a lower die base plate 5, a clamp 6, a spring damper 7, a first base plate 8, a guide pillar 9 and a guide sleeve 10. The clamp 6 is used for clamping the forming cutter die 3 at the lower side of the upper die seat plate 4, and the clamp 6 can be flat tongs or a three-jaw chuck and the like. The lower extreme of shaping cutting die 3 has the edge of a knife, and the upper end offsets with last die holder board 4, and lower die holder board 5 sets up on base 2, and lower die holder board 5 can pass through screw fastening connection on base 2. The guide sleeve 10 is arranged on the upper die base plate 4, the guide pillar 9 is arranged on the lower die base plate 5, the guide sleeve 10 is sleeved on the guide pillar 9 and can slide relative to the guide pillar 9, a guide sleeve 10 hole is formed in the upper die base plate 4, and the guide sleeve 10 is inserted into the guide sleeve 10 hole and is in interference fit with the guide sleeve 10 hole; the lower die seat plate 5 is provided with a column hole, and the guide column 9 is inserted into the guide column 9 hole and is in interference fit with the guide column 9 hole. First backing plate 8 sets up in the upper end of lower mould bedplate 5, and on first backing plate 8 accessible screw fixation was in lower mould bedplate 5, first backing plate 8 can conveniently be dismantled to the screw fixation, was favorable to the change and the maintenance of first backing plate 8. The center lines of the first base plate 8, the forming cutting die 3 and the pressing plate 1 are superposed, so that the forming cutting die 3 is not subjected to unbalance loading of force in the stamping process, and the knife edge of the forming cutting die 3 is uniformly stressed; spring damper 7 one end is connected with the lower extreme of last mold seat board 4, and the other end is connected with the upper end of lower mold seat board 5, and spring damper 7 can pass through screwed connection in last mold seat board 4, and can be connected with lower mold seat board 5 through screwed connection's mode.

In the above-mentioned example, clamp plate 1, the coincidence of shaping cutting die 3 and backing plate three central line, shaping cutting die 3 atress is even when the punching press, the higher plastic part of quality is blanked out easily, shaping cutting die 3 is fixed on anchor clamps 6 and is made the cutting press at every turn and need not adjust shaping cutting die 3 position, the operating procedure has been saved, guide pillar 9 and guide pin bushing 10 play fine guide effect to the removal of cope match-plate pattern 4 simultaneously, make shaping cutting die 3 follow the difficult emergence skew of the in-process that cope match-plate pattern 4 pushed down, shaping cutting die 3 job stabilization nature has been improved.

Further, referring to fig. 4, the forming die 3 may be a unitary structure having a hollow interior, an open upper end and a lower end, and a uniform wall thickness. The uniform wall thickness ensures that the forming cutting die 3 meets the working strength when in use, and saves the manufacturing materials, the side wall profile shape of the forming cutting die 3 can be the same as the profile of the workpiece, and the profiles of the side wall profile shape and the workpiece profile shape are the same, thereby not only meeting the use strength, but also saving the manufacturing materials more closely.

Further, referring to fig. 2 and 3, the clamp 6 is a flat tongs, and is disposed on the upper die plate 4; the flat-nose pliers are used for clamping two side faces, back to the back, of the forming cutting die 3, the upper end of the forming cutting die 3 is abutted to the flat-nose pliers base 2, preferably, clamping mouths at two ends of the flat-nose pliers should be attached to the two side faces, back to the back, of the forming cutting die 3, the clamping contact area is increased, and the clamping effect is better. The flat-nose pliers can be fixedly connected to the lower end of the upper die base plate 4 through screws, and the screws are connected to facilitate mounting, dismounting and debugging of the flat-nose pliers.

In the above example, the flat tongs have the advantages of easy installation, repeated clamping, good clamping effect, convenient operation and the like, the repeated clamping enables the forming cutting die 3 to be repeatedly disassembled, and the forming cutting die 3 is easy to maintain and replace.

Further, referring to fig. 4, the forming cutting die 3 has a first side wall 14 and a second side wall 15 which are opposite to each other, and the first side wall 14 and the second side wall 15 are both vertically arranged and are parallel to each other; the flat tongs are used for clamping the first side wall 14 and the second side wall 15, so that the clamping force of the forming cutting die 3 is balanced, the stability of clamping is improved, sliding is not easy to occur, and the stability of the forming cutting die 3 in the punching process is improved.

In the above example, the forming die 3 is stably clamped and thus works stably during the punching process.

Further, referring to fig. 3, the lower die base plate 5 has a groove 11, the groove 11 has the same outer dimension as the first shim plate 8, the first shim plate 8 is disposed in the groove 11, and the height of the first shim plate 8 is higher than the height of the groove 11.

In the above example, the recess 11 provides a planar stop for the first shim plate 8, making the shim plate more stable during the blanking process.

Further, referring to fig. 3, the first shim plate 8 is provided with threaded counterbores, the number of the threaded counterbores can be set to four, and the first shim plate 8 is connected with the lower die base plate 5 through screws.

In the above example, the shim plate is provided with the countersunk threaded hole 12, so that the head of the screw does not protrude to affect the press cutting of the plastic plate, and meanwhile, the screw connection enables the wood plate to be detached relative to the lower die base plate 5, thereby being beneficial to the replacement and maintenance of the shim plate.

Further, referring to fig. 1 and 2, the first backing plate 8 is a wood board, the outline of the wood board can be rectangular, the rectangular wood board is convenient to produce and process, and the structure is simple and practical.

In the above example, the wood board has high density, strong toughness and firm use, the wood base plate has slight deformation in the cutting process, the buffering effect is achieved, the forming cutting die 3 is not easy to damage, and the service life of the forming cutting die 3 is longer.

Further, referring to fig. 2 and 3, a second shim plate 13 is arranged at the upper end of the upper die base plate 4, the second shim plate 13 is provided with countersunk threaded holes 12, the number of the threaded countersunk holes can be four, and the second shim plate 13 is connected to the upper die base plate 4 through screws.

In the above-mentioned example, last die holder board 4 plays the effect of carrier and bearing the impact force in the course of the work, can make last die holder board 4 receive the damage in punching process many times, sets up second backing plate 13 in last die holder board 4 upper end and can play the impact that the buffering punching machine led to the fact to last die holder board 4, reduces the damage for last die holder life is longer, and countersunk head screw hole 12 makes the screw head not expose in the backing plate simultaneously, and clamp plate 1 is difficult for crushing the screw.

The implementation principle of the embodiment is as follows: the pressing plate 1 is pressed downwards to push the upper die base plate 4 to move downwards, meanwhile, the upper die base plate 4 drives the forming cutter die 3 to move downwards, when the upper die base plate moves to a certain stroke, the lower section cutter edge of the forming cutter die 3 and the base plate act together to die-cut the plastic plate, the central lines of the pressing plate 1, the forming cutter die 3 and the base plate coincide, the stress of the forming cutter edge is uniform, and plastic parts with better quality are die-cut. Then 1 return stroke of clamp plate, damping bumper shock absorber kick-backs and makes the upper die base return, accomplishes a die-cut, only needs to remove plastic sheet at next die-cut, and need not put shaping cutting die 3, saves operating procedure, has improved production efficiency.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A plastic plate blanking machine is characterized in that: comprises a forming die, a base (2) and a pressing plate (1) which can lift relative to the base (2); forming die includes shaping cutting die (3), goes up die holder board (4), lower die holder board (5), anchor clamps (6), spring damper (7), first backing plate (8), guide pillar (9) and guide pin bushing (10), anchor clamps (6) be used for with shaping cutting die (3) clamping is in go up the downside of die holder board (4), the lower extreme of shaping cutting die (3) has the edge of a knife, and the upper end offsets with last die holder board (4), lower die holder board (5) set up on base (2), guide pin bushing (10) set up in go up on die holder board (4), guide pillar (9) set up in on lower die holder board (5), guide pin bushing (10) cup joint in on guide pillar (9) and can be relative guide pillar (9) slide, first backing plate (8) set up the upper end of lower die holder board (5), first backing plate (8), The center lines of the forming cutting die (3) and the pressing plate (1) are overlapped; one end of the spring damper (7) is connected with the lower end of the upper die base plate (4), and the other end of the spring damper is connected with the upper end of the lower die base plate (5).

2. The plastic panel blanking machine of claim 1, wherein: the forming cutting die (3) is of an integrated structure with a hollow interior, an upper end and a lower end which are both open and a side wall with uniform wall thickness.

3. A plastic panel blanking machine as claimed in claim 1 or 2, wherein: the clamp (6) is a flat tongs and is arranged on the upper die base plate (4); the flat-nose pliers are used for clamping two back-to-back side faces of the forming cutting die (3), and the upper end of the forming cutting die (3) is abutted to the flat-nose pliers base (2).

4. A plastic panel blanking machine as claimed in claim 3, wherein: the forming cutting die (3) is provided with a first side wall (14) and a second side wall (15) which are opposite, and the first side wall (14) and the second side wall (15) are both vertically arranged and are parallel to each other; the flat tongs are used for clamping the first side wall (14) and the second side wall (15).

5. The plastic panel blanking machine of claim 1, wherein: lower mould bedplate (5) have recess (11), recess (11) with first backing plate (8) overall dimension is the same, first backing plate (8) set up in recess (11), just first backing plate (8) highly be higher than recess (11) height.

6. The plastic panel blanking machine of claim 5, wherein: the first base plate (8) is provided with a countersunk head threaded hole (12) and is connected with the lower die base plate (5) through a screw.

7. The plastic panel blanking machine of claim 6, wherein: the first backing plate (8) is a wood plate.

8. The plastic panel blanking machine of claim 1, wherein: and a second base plate (13) is arranged at the upper end of the upper die base plate (4), the second base plate (13) is provided with a countersunk head threaded hole (12), and is connected to the upper die base plate (4) through a screw.

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