CN213495911U

CN213495911U - Mould waste discharge device

Info

Publication number: CN213495911U
Application number: CN202022157862.9U
Authority: CN
Inventors: 金键; 刘大成; 敦勃文; 冯吉贺
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-06-22
Anticipated expiration: 2030-09-27

Abstract

The utility model belongs to the technical field of machining, a mould waste discharge device is disclosed, include: two scrap knives; the upper die trimming insert is arranged between the two waste knives and used for punching the stamping part along the vertical direction; the discharging device comprises a guide plate, the guide plate can swing on a vertical plane around a fulcrum, a feeding end is arranged on a first side of the fulcrum of the guide plate and is arranged below an upper die trimming insert, a discharging end is arranged on a second side of the fulcrum of the guide plate, a negative weight block is arranged on the bottom surface of the discharging end, and a stamping part presses the feeding end downwards before being blanked by the upper die trimming insert and overcomes the gravity of the negative weight block. Because the discharge end of stock guide is equipped with the burden heavy piece for the feed end of stock guide is up, and before the blanking of going up mould deburring insert, the stamping workpiece pushes down the feed end, and the stamping workpiece is broken off and breaks away from out the waste material after being blanked, and because the effect of burden heavy piece, the discharge end moves down around the fulcrum, and the feed end upwards restores around the fulcrum, makes the waste material draw out along the stock guide of slope.

Description

Mould waste discharge device

Technical Field

The utility model relates to the technical field of machining, especially, relate to a mould waste discharge device.

Background

The stamping die scrap cutter is a part for cutting off excess scrap of the drawn piece so that the scrap is separated from the stamping body. The arrangement of the die waste cutter is divided into three structures of 'edge-to-edge', 'edge-to-back' and 'back-to-back', wherein waste cut by the 'edge-to-edge' structure can directly fall under the action of gravity, and one side of the waste cut by the 'edge-to-back' structure can slide downwards under the action of gravity; the two ends of the waste cut by the back-to-back structure are supported by the waste knife and can not slide down under the action of gravity. Therefore, the structure of 'edge to edge' and 'edge to back' is commonly adopted in the structural design of the die, so that the back to back structure is avoided, and the waste materials can slide down conveniently to the maximum extent.

Generally, the process arrangement of trimming the stamped part is in a form of drawing-trimming-secondary trimming, namely, after drawing is finished, the final contour of the stamped product is obtained through trimming twice. The process arrangement of the two-time trimming allows the adoption of a 'blade-to-blade' and 'blade-to-back' structure on the die, thereby ensuring the smooth sliding-out of the trimming waste. However, when only a single-step trimming is performed to save the process or only a back-to-back arrangement is adopted due to the limitation of the mold structure, the discharge of the scrap becomes very difficult, and thus an auxiliary device is required to discharge the scrap.

The common modes of waste discharge of the stamping die are cylinder ejection, waste hook material carrying and the like.

The cylinder liftout mode utilizes the cylinder jack-up strength that sets up at the lower mould, and from up jack-up down with the waste material, and then ejecting mould blanking blade guarantees that the blanking waste material in time discharges. The cylinder liftout mode has the following shortcomings: the structure of the mold is considered to see whether the mold has a position or not; potential safety hazards exist, and if the adjustment is improper, the waste material can hurt people and die; requires an air source and increases the cost input.

The waste hook is added on the upper die, and the hook is driven by a press slide block from bottom to top to automatically discharge waste. The waste hook belt material mode has the following disadvantages: when the width direction of the waste is longer, the waste is not easy to hook out; the structure has high requirements on the limitation of space, and if the space is insufficient, the waste cannot slide from the hook arm when rotating, and the situation that the waste is brought to the upper die can occur. Meanwhile, if the waste is too high to be carried, the waste may scratch the product or the waste cannot fall into the waste chute during the falling process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mould waste discharge device overcomes current waste discharge mode mould structure space and requires highly, have the not enough of accident hidden danger to solve the problem that waste material sword "back to back" arrangement mode can't smooth roll-off waste material with lower cost.

To achieve the purpose, the utility model adopts the following technical proposal:

a mold scrap discharge apparatus comprising:

two scrap knives;

the upper die trimming insert is arranged between the two waste knives and used for blanking a stamping part in the vertical direction;

the discharging device comprises a guide plate, the guide plate can swing on a vertical plane around a fulcrum, the guide plate is arranged on a first side of the fulcrum and is provided with a feeding end, the feeding end is arranged below an upper die trimming insert, the guide plate is arranged on a second side of the fulcrum and is provided with a discharging end, the bottom surface of the discharging end is provided with a negative weight block, and a stamping part is pressed down before being stamped by the upper die trimming insert and punched, the feeding end enables the discharging end to overcome the gravity of the negative weight block.

Preferably, the discharge device further comprises:

the top of the support is provided with the fulcrum and is hinged with the material guide plate.

Preferably, a first connecting sleeve is arranged at the position, corresponding to the fulcrum, of the bottom surface of the material guide plate, and the first connecting sleeve is provided with a first circular hole;

a second connecting sleeve is arranged at the top of the bracket and provided with a second circular hole;

the discharge device further comprises a connecting column, and the first circular hole and the second circular hole are formed in the connecting column in a penetrating mode.

Preferably, the support is provided in a height adjustable configuration.

Preferably, the bracket comprises a bracket base and a bracket body which are coaxially arranged along the height direction, and the bottom of the bracket body is in threaded connection with the top of the bracket base.

Preferably, the ratio of the length of the feeding end from the fulcrum to the length of the discharging end from the fulcrum ranges from 1:4 to 1: 5.

Preferably, the die waste discharge device further comprises a die male die, the die male die is provided with a right-angle table top, the support is arranged on the horizontal end face of the right-angle table top, and the top of the right-angle table top of the die male die is tangent to the upper die trimming insert along the vertical direction.

Preferably, an inclined surface is arranged at the top of the right-angled table-board of the male die of the die, and one end of the inclined surface close to the discharging device is lower than one end of the inclined surface far away from the discharging device.

Preferably, the support is slidably disposed on the horizontal end surface, and a sliding direction of the support is the same as a projection extending direction of the material guide plate on the horizontal end surface.

Preferably, a sliding groove is formed in the horizontal end face, a sliding block is arranged in the sliding groove, and the bottom of the base of the support is in threaded connection with the sliding block.

The utility model has the advantages that: because the discharge end of stock guide is equipped with the burden heavy piece for the feed end of stock guide is up, and before the blanking of going up mould deburring insert, the stamping workpiece pushes down the feed end, and the stamping workpiece is broken off and breaks away from out the waste material after being blanked, and because the effect of burden heavy piece, the discharge end moves down around the fulcrum, and the feed end upwards restores around the fulcrum, makes the waste material draw out along the stock guide of slope.

Drawings

FIG. 1 is a top view of a mold scrap discharge apparatus in accordance with an embodiment of the present application;

FIG. 2 is a side view of the mold scrap discharge apparatus of an embodiment of the present application with the scrap knife omitted;

FIG. 3 is a side view of the die scrap discharge apparatus of an embodiment of the present application after blanking;

fig. 4 is a schematic structural diagram of a stent according to an embodiment of the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a mould waste discharge device, figure 1 is the top view of the mould waste discharge device of this application embodiment. Fig. 2 is a side view of the mold scrap discharge apparatus of the embodiment of the present application with the scrap knife omitted. Fig. 3 is a side view of the die scrap discharge apparatus according to the embodiment of the present application after blanking.

The waste discharging device of the mold comprises two waste knives 1, the knife edges of the two waste knives 1 are arranged back to back, and a back-to-back arrangement mode is formed, of course, the arrangement mode of the waste knives 1 is not limited to back-to-back, and can also be arranged to be edge-to-edge or edge-to-back, and the embodiment is not limited to this.

An upper die trimming insert 2 is arranged between the two waste material knives 1, the upper die trimming insert 2 can move along the vertical direction to further punch and cut the stamping part 100, and waste materials 101 are formed after cutting.

A discharge device 3 is arranged below the upper die trimming insert 2, the stamping part 100 can be blanked and cut off on the discharge device 3 to form a scrap 101, and then the scrap 101 is transferred away through the discharge device 3.

The discharging device 3 includes a material guiding plate 31, the material guiding plate 31 can swing on a vertical plane around a fulcrum 310, the material guiding plate 31 is provided with a feeding end (the right end of the material guiding plate 31 in fig. 2) at a first side of the fulcrum 310, the material guiding plate 31 is provided with a discharging end (the left end of the material guiding plate 31 in fig. 2) at a second side of the fulcrum 310, the feeding end is located under the upper die trimming insert 2, the discharging end is provided with a negative weight 32, in an initial state (when the stamping part 100 is not placed), the discharging end is downward under the action of the negative weight 32, the feeding end faces upward, and the stamping part 100 can press down the feeding end (as shown in fig. 2). After the upper trimming die insert 2 punches the stamping part 100, the stamping part 100 breaks and then breaks away from the scrap 101, and due to the action of the negative weight 32, the discharge end moves downwards around the fulcrum 310, and the feed end returns upwards around the fulcrum 310, so that the scrap 101 is scratched out along the inclined guide plate 31 (as shown in fig. 3).

It should be noted that the upper die trimming insert 2 and the discharging device 3 do not interfere with each other.

The discharging device 3 further comprises a bracket 33, and the top of the bracket 33 is provided with a fulcrum 310 and hinged with the material guide plate 31.

Further, a first connecting sleeve (not shown in the figure) having a circular hole is disposed on the bottom surface of the material guiding plate 31 corresponding to the pivot 310; the top of the bracket 33 is provided with a second connecting sleeve 333, and the second connecting sleeve 333 is also provided with a second circular hole; the discharge device 3 further comprises a connecting column, and the connecting column penetrates through the first circular hole of the first connecting sleeve and the second circular hole of the second connecting sleeve 333.

It should be noted that the connecting column is arranged to be a cylinder, and the connecting column can freely rotate relative to the first circular hole and the second circular hole.

In the present embodiment, the support 33 is configured to be height-adjustable, so that the height of the support 310 and the height of the material guide plate 31 are variable, and the position of the discharging end and the range of the inclination angle of the material guide plate 31 can be adjusted.

Fig. 4 is a schematic structural diagram of the bracket 33 according to the embodiment of the present application, the bracket 33 includes a bracket base 331 and a bracket body 332 coaxially arranged in the height direction, the bracket base 331 is a tubular structure provided with a threaded hole, and the bottom of the bracket body 332 is screwed with the bracket base 331. The height of the bracket 33 is adjusted by screwing the bracket body 332 to different positions of the bracket base 331.

Further, the ratio of the length of the feed end from the fulcrum 310 to the length of the discharge end from the fulcrum 310 ranges from 1:4 to 1: 5. In this example, the ratio is 1: 5.

The die waste discharging device further comprises a die male die 4, the die male die 4 is provided with a right-angle table surface, the support 33 is arranged on the horizontal end surface 41 of the right-angle table surface, and the top of the right-angle table surface of the die male die 4 is tangent to the upper die trimming insert 2 in the vertical direction. The upper die trimming insert 2 is tangent to the top of the right-angle table surface when moving downwards so as to blank the edge of the stamping part 100 corresponding to the male die 4 of the die, and the top edge of the right-angle table surface can provide support for blanking.

Further, the top of the right-angle table is provided with an inclined surface 42, and one end of the inclined surface 42 close to the discharging device 3 is lower than one end of the inclined surface 42 far away from the discharging device 3. In one aspect, the inclined surface 42 provides the stamping 100 with a tendency to slide downwardly, and when the stamping 100 is blanked, the stamping 100 breaks away from the edges of the inclined surface 42 to form slugs 101.

Note that, if the pressing member 100 is a flat surface, the inclined surface 42 may not be provided.

Further, the bracket 33 is slidably disposed on the horizontal end surface 41, and a sliding direction of the bracket 33 is the same as a projection extending direction of the material guide plate 31 on the horizontal end surface 41. That is, the bracket 33 can adjust not only its height position but also its distance from the inclined surface 42.

The horizontal end face 41 is provided with a sliding groove, the extending direction of the sliding groove is consistent with the projecting extending direction of the material guide plate 31 on the horizontal end face 41, a sliding block is arranged in the sliding groove, the sliding block and the sliding groove are in interference connection, the sliding block can slide along the sliding groove, and the bottom of the material guide plate 31 is in threaded connection with the sliding block.

It should be noted that the slide block is provided with a screw hole, the bottom of the base 331 of the bracket is provided with a lip 3310, the lip 3310 is provided with a through hole, the through hole of the lip 3310 is penetrated by a bolt and is screwed into the screw hole of the slide block, and the lip 3310 is pressed tightly.

The utility model provides a mould waste discharge device's theory of operation does: the position of the support 33 on the horizontal end face 41 of the die punch 4 is first adjusted and fixed, and in the initial state, the discharge end is downward by the negative weight 32, while the feed end is upward and is pressed down by the stamping part 100, so that the discharge end overcomes the gravity of the negative weight 32. After the upper trimming die insert 2 punches the stamping part 100, the stamping part 100 breaks and then breaks away from the waste 101, and due to the action of the negative weight 32, the discharge end moves downwards around the fulcrum 310, and the feed end returns upwards around the fulcrum 310, so that the waste 101 is scratched along the inclined guide plate 31.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A mold scrap discharge apparatus, comprising:

two scrap knives (1);

the upper die trimming insert (2), the upper die trimming insert (2) is arranged between the two scrap knives (1) and is used for punching a stamping part (100) along the vertical direction;

discharge device (3), discharge device (3) include stock guide (31), stock guide (31) can swing on vertical plane around fulcrum (310), stock guide (31) are in the first side of fulcrum (310) is equipped with the feed end, the feed end sets up go up the below of mould deburring insert (2), stock guide (31) are in the second side of fulcrum (310) is equipped with the discharge end, the bottom surface of discharge end is equipped with negative weight piece (32), stamping workpiece (100) quilt it pushes down before deburring insert (2) blanking the feed end and make the discharge end overcome the gravity of negative weight piece (32).

2. The mould scrap discharge apparatus according to claim 1, characterized in that the discharge apparatus (3) further comprises:

the top of the bracket (33) is provided with the fulcrum (310) and hinged with the material guide plate (31).

3. The mold waste discharge device according to claim 2, wherein a first connecting sleeve is arranged on the bottom surface of the material guide plate (31) corresponding to the fulcrum (310), and the first connecting sleeve is provided with a circular hole;

a second connecting sleeve (333) is arranged at the top of the bracket (33), and the second connecting sleeve (333) is provided with a second circular hole;

the discharging device (3) further comprises a connecting column, and the first circular hole and the second circular hole are formed in the connecting column in a penetrating mode.

4. The mould scrap discharge apparatus in accordance with claim 2 wherein the support (33) is provided in a height adjustable configuration.

5. The mold scrap discharge apparatus in accordance with claim 4, wherein said holder (33) comprises a holder base (331) and a holder body (332) coaxially arranged in a height direction, and a bottom of said holder body (332) is screwed on a top of said holder base (331).

6. The mold scrap ejector apparatus in accordance with claim 1, wherein a ratio of a length of the feed end from the fulcrum (310) to a length of the discharge end from the fulcrum (310) ranges from 1:4 to 1: 5.

7. The die scrap discharge device according to claim 5, further comprising a die male die (4), wherein the die male die (4) is provided with a right-angle table surface, the support (33) is arranged on a horizontal end surface (41) of the right-angle table surface, and the top of the right-angle table surface of the die male die (4) is tangent to the upper die trimming insert (2) in the vertical direction.

8. The die scrap discharge apparatus according to claim 7, wherein the top of the right-angled table of the die punch (4) is provided with an inclined surface (42), and the end of the inclined surface (42) close to the discharge device (3) is lower than the end of the inclined surface (42) away from the discharge device (3).

9. The mold scrap discharge apparatus according to claim 7, wherein the support (33) is slidably disposed on the horizontal end surface (41), and a sliding direction of the support (33) is the same as a projected extension direction of the material guide plate (31) on the horizontal end surface (41).

10. The mold scrap ejector apparatus in accordance with claim 9, wherein the horizontal end surface (41) is provided with a slide groove, a slide block is provided in the slide groove, and a bottom portion of the holder base portion (331) is screw-coupled to the slide block.