CN210100198U - Hydraulic sheet punching machine capable of automatically ejecting - Google Patents

Abstract

The utility model discloses a hydraulic sheet punching machine capable of automatically ejecting, which is provided with a base, a hydraulic column and a piston rod, wherein the upper part of the piston rod is connected with a cross beam, a connecting rod is arranged below the cross beam, an installation frame is screwed below the connecting rod, and a cut-off knife is arranged below the installation frame; an ejection device is arranged in the connecting rod; the ejection device comprises a spring and a spring shaft which are connected below the cross beam; the lower end part of the spring is provided with a connecting plate, and an elastic block is arranged below the connecting plate; the spring is sleeved on the spring shaft, the lower end of the spring shaft is connected with the connecting plate, the upper end of the spring shaft penetrates through the cross beam and extends upwards, an end cover is arranged at the upper end of the spring shaft, and a movable limiting block is arranged between the end cover and the cross beam; the hydraulic sheet punching machine can automatically punch sheets, and the sheet punching operation is time-saving and labor-saving; after the sheet is punched, the sheet is prevented from being manually taken from the cut-off knife, the damage is reduced, and the safety is high.

Description

Hydraulic sheet punching machine capable of automatically ejecting

Technical Field

The utility model relates to sheet punching machine technical field, concretely relates to can automatic ejecting hydraulic pressure sheet punching machine.

Background

When waterproof material manufacturers such as coatings, sealants and the like and scientific research institutions need to test the performance of the prepared waterproof materials, the waterproof materials need to be prepared into films, and the films are cut into sample wafers specified by various standards to test the mechanical properties of the waterproof materials. For example, the sample sheet is cut into a circular shape, a rectangular shape, a dumbbell shape, etc., and various shapes of cutting knives are used accordingly.

Generally, a punching machine for preparing a sheet-shaped sample mostly adopts a manual punch to move, and a cutting knife and the punch adopt a separated form, so that the cutting is labor-consuming and the cutting is easy to be discontinuous. Meanwhile, after the existing sheet punching machine cuts the sheet, the sample is easily clamped in an inner hole of the cutter and is not easy to take out, and the edge of the cutter is sharp, so that the sample is easy to hurt and very unsafe. The test piece to be cut on the existing sheet cutting machine cannot be fixed, on one hand, when external force is suddenly applied to the surface of the test piece, the test piece is easy to shake, and therefore the slicing quality is influenced; on the other hand, when the cut-off knife is lifted, the test piece residue on the periphery of the cut-off knife is clamped on the periphery of the cut-off knife and can lift along with the cut-off knife, and the test piece residue needs to be taken out manually, is easy to hurt hands and is unsafe.

Disclosure of Invention

The utility model aims at providing a can automatic ejecting hydraulic pressure punching machine to the problem that prior art exists.

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

a hydraulic punching machine capable of automatically ejecting comprises a base, wherein hydraulic columns are arranged on two sides of the base, piston rods are arranged on the hydraulic columns, the upper parts of the piston rods are connected with a cross beam, a connecting rod is arranged below the cross beam, an installation frame is screwed below the connecting rod, and a cutter is arranged below the installation frame; the connecting rod is of a hollow structure, and an ejection device is arranged in the connecting rod; the ejection device comprises a spring and a spring shaft which are connected below the cross beam; the upper end of the spring is fixedly connected to the bottom surface of the cross beam, the lower end of the spring is provided with a connecting plate, and an elastic block is arranged below the connecting plate; the spring sleeve is arranged on the spring shaft, the lower end of the spring shaft is connected with the connecting plate, the upper end of the spring shaft penetrates through the cross beam and extends upwards, an end cover is arranged at the upper end of the spring shaft, and a movable limiting block is arranged between the end cover and the cross beam.

The hydraulic sheet punching machine drives the cross beam to move up and down through hydraulic transmission, so that a cutter below the cross beam can automatically punch sheets, and the sheet punching operation is time-saving and labor-saving; after the sheet is punched, the cross beam is lifted, the limiting block is moved away, and the ejector device below the cross beam automatically ejects the cut test sheet, so that the sheet is prevented from being manually taken from the cut-off knife, the damage is reduced, and the safety is high.

The test piece is ejected by the elasticity of the reset spring, a spring with moderate elasticity can be selected in practice, the compression amount of the spring is not too large, the test piece can be just ejected, and the test piece is prevented from being ejected and damaged by too large elasticity; the elastic block can buffer the elasticity of the spring, and the spring is prevented from being in rigid contact with the test piece to damage the test piece; the end cover is used for lifting the spring shaft, compressing the spring and fixing the spring shaft on the limiting block, meanwhile, the end cover can prevent the spring shaft from sliding out of the cross beam, and the end cover and the spring shaft are detachably connected in a threaded mode.

The hollow connecting rod is provided with flanges at two ends, so that the hollow connecting rod is convenient to be installed and connected with other parts.

Furthermore, at least one side of the limiting block is provided with a groove which vertically penetrates through the limiting block, and the groove is used for accommodating the spring shaft; the end cover is supported by the limiting block, and a lifting handle is arranged on the end cover. The limiting block is simple in structure, easy to use, convenient to move out, and capable of supporting and limiting; the end cover and the spring shaft are conveniently pulled up by the handle. In practice, the limiting blocks with different heights can be replaced to adjust the compressed state of the spring, so that the spring can release spring force with different force and spring movement stroke.

Further, a shaft sleeve is arranged in the through hole, and the spring shaft is sleeved in the shaft sleeve; one side of the through hole, which is close to the spring, is a stepped hole, and the upper end of the spring is clamped and fixed in the stepped hole. The shaft sleeve can protect the spring shaft and is convenient for the spring shaft to slide up and down; the stepped hole can accommodate the spring and just clamp the upper end of the spring, so that the position of the spring is ensured to be changed randomly.

Furthermore, the connecting plate is in threaded connection with the tail end of the spring shaft, a counter bore is formed in one surface, facing the spring shaft, of the connecting plate, and the lower end portion of the spring is installed and fixed in the counter bore. The counter bore can also accommodate the spring and just clamp the lower end of the spring; the spring can reduce circumferential runout of the spring under the matching and limiting effects of the stepped hole, the counter bore and the spring shaft, and the situation that the spring swings in the stretching process to influence the ejection effect is avoided.

Furthermore, the elastic block is a rubber block or a soft plastic block and is adhered to the lower surface of the connecting plate; ensuring the soft contact between the ejection device and the test piece and protecting the test piece.

Furthermore, the size of the inner frame of the mounting frame is larger than the sizes of the connecting plate and the elastic block, so that the connecting plate and the elastic block can penetrate through the mounting frame and contact the test piece clamped in the cutter; all be equipped with a plurality of screw holes around the framework of installing frame, the setting of more screw hole for the cut-off knife of installation different grade type and model improves this hydraulic pressure punching machine's suitability, is used for making the sample piece of various standard regulations.

Further, an object stage is arranged above the base, and the middle part of the object stage is opposite to the cutter; rotatable elastic pressing sheets are arranged on two sides of the objective table. The objective table is used for fixing a test piece to be cut, and the elastic pressing sheets at two sides press the test piece to be cut, so that the residual test piece cannot be taken up when the cutter is lifted after the cutting is finished; the elastic pressing sheet can rotate, so that the test piece is convenient to assemble and disassemble.

Furthermore, the elastic pressing sheet is provided with a clamping part and a rotating fixing part which are integrally formed, and the rotating fixing part is fixed on the objective table through an adjusting bolt.

When the hydraulic punching machine capable of automatically ejecting is used, a hydraulic device is started, the cross beam is lifted, the spring shaft is pulled up, and the limiting block is inserted to enable the spring to be in a compressed state; rotating the elastic pressing sheet, placing a test piece to be cut in the middle of the objective table, rotating the elastic pressing sheet back, clamping the test piece to be cut by a clamping part of the elastic pressing sheet, and screwing an adjusting bolt to fix the elastic pressing sheet; controlling a hydraulic system to rapidly move the cross beam downwards until the cutter cuts the test piece to be cut and touches the objective table, immediately lifting the cross beam, and smoothly separating the cutter from the residual test piece on the objective table; moving the limiting block away, and enabling the spring to automatically move downwards to enable the elastic block to touch and eject the cut test piece in the cutter; collecting the cut test piece under the colony, and removing the residual test piece on the objective table; and pulling up the spring shaft, inserting the limiting block, and repeating the actions to perform next stamping. The whole process is simple and quick, the cutter does not need to be contacted by hands, and the safety is higher.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the hydraulic sheet punching machine can automatically punch sheets, and the sheet punching operation is time-saving and labor-saving; after the sheet is punched, manual sheet taking from the cutter is avoided, damage is reduced, and safety is high; 2. the compression amount of the spring is adjustable, and the elasticity is moderate; the elastic block can also buffer the elasticity of the spring, so that the spring is prevented from being in rigid contact with the test piece and damaging the test piece; 3. the elastic pressing sheet can press the test piece, so that the shaking is reduced, the slicing quality is improved, and the residual test piece cannot be brought up when the cutter is lifted after the cutting is finished; 4. the installation frame that the multiple thread hole set up can install the cut-off knife of different grade type, improves this hydraulic pressure punching machine's suitability for make the standard sample piece of various models.

Drawings

Fig. 1 is a schematic view of the overall structure of a hydraulic sheet punching machine capable of automatically ejecting out the sheet;

fig. 2 is a schematic structural diagram of a limiting block of the hydraulic sheet punching machine capable of automatically ejecting out the sheet;

fig. 3 is a schematic diagram of an a-a direction structure of a hydraulic tablet press capable of automatically ejecting out the tablet;

in the figure: 1. a base; 2. a hydraulic column; 3. a piston rod; 4. a cross beam; 5. a connecting rod; 6. installing a frame; 7. a cutter; 8. a spring; 9. a spring shaft; 10. an end cap; 1001. a handle; 11. a limiting block; 1101. a groove; 12. a connecting plate; 13. an elastic block; 14. a through hole; 15. a shaft sleeve; 16. a stepped hole; 17. a counter bore; 18. an object stage; 19. elastic tabletting; 20. and adjusting the bolt.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the hydraulic sheet punching machine capable of automatically ejecting comprises a base 1, hydraulic columns 2 are arranged on two sides of the base 1, piston rods 3 are arranged on the hydraulic columns 2, the upper parts of the piston rods 3 are connected with a cross beam 4, a connecting rod 5 is arranged below the cross beam 4, an installation frame 6 is screwed below the connecting rod 5, and a cutting knife 7 is arranged below the installation frame 6; the connecting rod 5 is of a hollow structure, and an ejection device is arranged in the connecting rod 5; the ejection device comprises a spring 8 and a spring shaft 9 which are connected below the cross beam 4; the upper end of the spring 8 is fixedly connected to the bottom surface of the cross beam 4, the lower end of the spring 8 is provided with a connecting plate 12, and an elastic block 13 is arranged below the connecting plate 12; the spring 8 is sleeved on the spring shaft 9, the lower end of the spring shaft 9 is connected with the connecting plate 12, the upper end of the spring shaft 9 penetrates through the cross beam and extends upwards, an end cover 10 is arranged at the upper end of the spring shaft 9, and a movable limiting block 11 is arranged between the end cover 10 and the cross beam 4.

The hydraulic sheet punching machine drives the cross beam 4 to move up and down through hydraulic transmission, so that the cutter 7 below the cross beam 4 can automatically punch sheets, and the sheet punching operation is time-saving and labor-saving; after punching the piece, the beam 4 is lifted, the limit block 11 is removed, and the ejector device below the beam 4 automatically ejects the cut test piece, so that the manual piece taking from the cut-off knife is avoided, the damage is reduced, and the safety is high.

Wherein, the hollow connecting rod 5 both ends all have the flange, be convenient for with other part erection joint.

Further, as shown in fig. 2, one side of the stopper 11 has a groove 1101 vertically penetrating therethrough, and the groove 1101 receives the spring shaft 9; the end cover 10 is supported by the limiting block 11, and a handle 1001 is arranged on the end cover 10. The limiting block 11 is simple in structure, easy to use, very convenient to move out, and has a supporting function and a limiting function; the handle 1001 facilitates the pulling up of the end cap 10 and the spring shaft 9. In practice, the limiting blocks 11 with different heights can be replaced to adjust the compressed state of the spring 8, so that the spring 8 can release spring force with different force and spring movement stroke.

Further, as shown in fig. 3, a shaft sleeve 15 is arranged in the through hole 14, and the spring shaft 9 is sleeved in the shaft sleeve 15; one side of the through hole 14 close to the spring 8 is a stepped hole 16, and the upper end of the spring 8 is clamped and fixed in the stepped hole 16. The shaft sleeve 15 can protect the spring shaft 9 and facilitate the spring shaft 9 to slide up and down; the stepped hole 16 can accommodate the spring 8 and just block the upper end of the spring 8, so that the position of the spring 8 is ensured to be changed randomly.

Further, the connecting plate 12 is screwed at the end of the spring shaft 9, a counter bore 17 is formed in one surface of the connecting plate 12 facing the spring shaft 9, and the lower end of the spring 8 is mounted and fixed in the counter bore 17. The counter bore 17 can also accommodate the spring 8 and just clamp the lower end of the spring 8; the spring 8 can reduce circumferential runout of the spring 8 under the matching and limiting effects of the stepped hole 16, the counter bore 17 and the spring shaft 9, and the situation that the spring 8 swings in the stretching process to influence the ejection effect is avoided.

Further, the elastic block 13 is a rubber block and is adhered to the lower surface of the connecting plate 12; ensuring the soft contact between the ejection device and the test piece and protecting the test piece.

Furthermore, the size of the inner frame of the mounting frame 6 is larger than the outer contour sizes of the connecting plate 12 and the elastic block 13, so that the connecting plate 12 and the elastic block 13 can pass through the mounting frame 6 and contact the test piece clamped in the cutter 7; all be equipped with the screw hole around the framework of installing frame 6, the setting of more screw hole for the cut-off knife of installation different grade type and model improves this hydraulic pressure punching machine's suitability, is used for making the sample wafer of various standard regulations.

Further, an object stage 18 is arranged above the base 1, and the middle part of the object stage 18 is opposite to the cutter 7; rotatable elastic pressing sheets 19 are arranged on two sides of the object stage 18. The object stage 18 is used for fixing a test piece to be cut, and the elastic pressing sheets 19 at two sides press the test piece to be cut, so that the rest residual test piece cannot be taken up when the cutter is lifted after the cutting is finished; the elastic pressing sheet can rotate, so that the test piece is convenient to assemble and disassemble.

Further, the elastic pressing piece 19 has a clamping portion and a rotation fixing portion formed integrally, and the rotation fixing portion is fixed to the stage 18 by an adjusting bolt 20.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A hydraulic punching machine capable of automatically ejecting comprises a base, wherein hydraulic columns are arranged on two sides of the base, piston rods are arranged on the hydraulic columns, the upper parts of the piston rods are connected with a cross beam, a connecting rod is arranged below the cross beam, an installation frame is screwed below the connecting rod, and a cutter is arranged below the installation frame; the device is characterized in that the connecting rod is of a hollow structure, and an ejection device is arranged in the connecting rod; the ejection device comprises a spring and a spring shaft which are connected below the cross beam; the upper end of the spring is fixedly connected to the bottom surface of the cross beam, the lower end of the spring is provided with a connecting plate, and an elastic block is arranged below the connecting plate; the spring sleeve is arranged on the spring shaft, the lower end of the spring shaft is connected with the connecting plate, the upper end of the spring shaft penetrates through the cross beam and extends upwards, an end cover is arranged at the upper end of the spring shaft, and a movable limiting block is arranged between the end cover and the cross beam.

2. The hydraulic die cutter as claimed in claim 1, wherein at least one side of the limiting block is provided with a vertically penetrating groove, and the groove is used for accommodating the spring shaft; the end cover is supported by the limiting block, and a lifting handle is arranged on the end cover.

3. The hydraulic die-cutting machine as claimed in claim 1, wherein a through hole is formed in the middle of the cross beam, a shaft sleeve is arranged in the through hole, and the spring shaft is sleeved in the shaft sleeve; one side of the through hole, which is close to the spring, is a stepped hole, and the upper end of the spring is clamped and fixed in the stepped hole.

4. The hydraulic die cutter as claimed in claim 1, wherein the connecting plate is screwed to the end of the spring shaft, a counter bore is formed in a side of the connecting plate facing the spring shaft, and the lower end of the spring is mounted and fixed in the counter bore.

5. The hydraulic die-cutting machine as claimed in claim 1, wherein the elastic block is a rubber block or a soft plastic block and is adhered to the lower surface of the connecting plate.

6. The hydraulic die-cutting machine according to claim 1, wherein the size of the inner frame of the mounting frame is larger than the size of the connecting plate and the elastic block; and a plurality of threaded holes are formed in the periphery of the frame body of the mounting frame.

7. The hydraulic punching machine according to claim 1, wherein a stage is further arranged above the base, and the middle part of the stage is opposite to the cutter; rotatable elastic pressing sheets are arranged on two sides of the objective table.

8. The hydraulic die-cutting machine as claimed in claim 7, wherein the elastic pressing plate has a clamping portion and a rotation fixing portion formed integrally therewith, and the rotation fixing portion is fixed to the stage by an adjusting bolt.

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