Feeding auxiliary device of plate shearing machine

Abstract

The utility model discloses a feeding auxiliary device of a plate shearing machine, which is used for auxiliary delivery of middle plates on the plate shearing machine, a feeding platform is arranged on the plate shearing machine, a plurality of pressing mechanisms are arranged above the feeding platform, a shearing mechanism is arranged at the inner end of the feeding platform, and the pressing mechanisms are arranged on the feeding platform. Comprising a delivery plate used for being attached to the upper surface of the middle plate, a delivery abutting protrusion is fixedly arranged at the position, located at the outer end of the middle plate, of the delivery plate, and an operation structure is arranged at the outer end of the delivery plate; the width of the delivery plate is larger than the interval of the pressing mechanisms, and the height of the delivery abutting protrusions is smaller than the thickness of the middle plate. According to the utility model, the deep delivery of plates is avoided, the hand injury risk is obviously reduced, the pressing firmness of the plates is improved, and the generation of waste parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plate shears, in particular to a feeding auxiliary device for plate shears. Background Art

[0002] like Figure 7 As shown in the figure, the shearing machine is a device that shears metal plates with the help of a movable upper blade and a fixed lower blade. When working, the original plate is manually fed from the feeding platform on the shearing machine, and the original plate is pressed against the rear stop mechanism for length positioning. After pressing the start switch, the presser foot presses the plate first, and then the upper blade is driven down to shear the original plate; the sheared pieces fall into the shearing machine.

[0003] In the production of tricycle frames, a large number of thin plate workpieces with a thickness of about 2mm are used. Most of these thin plate workpieces are first cut by a shearing machine to obtain basic plates. The basic plates are then transferred to other processes, such as stamping processes, for further processing to obtain finished workpieces for welding or assembly. Since the original plates used for these workpieces are relatively thin and prone to sagging, it is difficult to cut a long length at a time at the shearing machine. The conventional practice is to design and layout according to the size of the basic plates, such as Figure 6 As shown, the original sheet is first cut into several intermediate sheets, such as Fig.10 As shown, each intermediate plate is cut into small-sized basic plates in turn. The length of each basic plate varies from 20 to 100 cm, and the width varies from 10 to 30 cm. After cutting, Fig.11 As shown in the figure, it is common to encounter the shearing work of two small width base plates; at this time, due to the small width of the base plate, the delivery depth during the last shearing will be larger, mostly located near the presser foot, such as Figure 8 and Fig.11 As shown in the figure, there is a risk of the presser foot crushing the worker's hand during shearing, especially when two or more people are working in parallel, the risk will increase significantly. In addition, based on the small length of the base plate and the fixed distance between the presser feet, the presser foot may only partially press the plate during the last shearing, such as Fig. 9 As shown in the figure, the plate holding firmness is poor, and the plate is often wasted due to the rotation of the plate due to the shearing force during the shearing process. In summary, it is necessary to optimize the feeding method of the shearing machine, especially the feeding method during the last shearing of small-sized intermediate plates, to improve the above situation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a shearing machine feeding auxiliary device which avoids deep delivery of plates, significantly reduces the risk of hand injury, and is beneficial to improving the firmness of plate holding and reducing the generation of waste parts.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a shearing machine feeding auxiliary device, used for assisting the delivery of intermediate plates on the shearing machine, the shearing machine is provided with a feeding platform, a plurality of pressing mechanisms are provided above the feeding platform, a shearing mechanism is provided at the inner end of the feeding platform, including a delivery plate for abutting against the upper surface of the intermediate plate, a delivery support protrusion is fixedly provided on the delivery plate at the outer end of the intermediate plate, and an operating structure is provided at the outer end of the delivery plate; the width of the delivery plate is greater than the spacing setting of the pressing mechanism, and the height of the delivery support protrusion is less than the thickness setting of the intermediate plate.

[0006] As a preferred technical solution, abutment mounting nuts are fixedly welded on the upper surface of the delivery plate, and each of the abutment mounting nuts is respectively equipped with abutment bolts whose lower ends extend out of the lower surface of the delivery plate, and the delivery plate is provided with bolt avoidance openings corresponding to the abutment bolts; the portion of the abutment bolts extending out of the lower surface of the delivery plate constitutes the delivery abutment protrusion.

[0007] As a preferred technical solution, the delivery abutment protrusions are respectively provided on both sides of each of the pressing mechanisms on the delivery plate.

[0008] As a preferred technical solution, the operating structure includes an operating handle fixedly arranged at the outer end of the delivery plate and extending in a direction away from the pressing mechanism.

[0009] Due to the adoption of the above technical solution, the shearing machine feeding auxiliary device is used to assist in delivering the intermediate plate on the shearing machine, the shearing machine is provided with a feeding platform, a plurality of pressing mechanisms are provided above the feeding platform, a shearing mechanism is provided at the inner end of the feeding platform, including a delivery plate for abutting against the upper surface of the intermediate plate, a delivery abutting protrusion is fixedly provided at the outer end of the intermediate plate on the delivery plate, and an operating structure is provided at the outer end of the delivery plate; the width of the delivery plate is greater than the spacing setting of the pressing mechanism, and the height of the delivery abutting protrusion is less than the thickness setting of the intermediate plate. When in use, especially when two small-width basic plates are finally sheared, the delivery plate is used to abut against the upper surface of the intermediate plate and deliver it into the shearing machine, and the delivery abutting protrusion can abut against the outer end of the intermediate plate and drive it to be delivered into the shearing machine until it abuts against the rear stop mechanism to form a positioning. In this process, the delivery plate is equivalent to extending the outward extension length of the middle plate, so that the worker's hands no longer need to go deep into the position of the pressing mechanism, avoiding deep delivery of the plate, and significantly reducing the risk of hand injury. The pressing mechanism presses on the delivery plate to indirectly press the middle plate; the delivery plate can be pressed by two pressing mechanisms at the same time, and the restriction of the delivery support protrusion allows the middle plate to remain firmly pressed and not easily rotated during shearing, which helps to reduce the generation of waste parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0011] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0012] Figure 2 It is a usage state diagram of an embodiment of the utility model;

[0013] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at the delivery plate in the middle;

[0014] Figure 4 yes Figure 3 A state diagram of the presser foot in the press mechanism when pressing the delivery plate;

[0015] Figure 5 yes Figure 4 A schematic diagram of the top view of the structure at the delivery plate;

[0016] Figure 6 It is a schematic diagram of designing and typesetting the original plate in the prior art;

[0017] Figure 7 It is the structural principle diagram of the prior art shearing machine;

[0018] Figure 8 yes Figure 7 An enlarged schematic diagram of the middle shear mechanism;

[0019] Fig. 9 yes Figure 8 The state diagram of the presser foot pressing down the middle plate;

[0020] Fig.10 yes Figure 6 Structural principle diagram of the intermediate plates cut from a certain original plate being delivered sequentially for cutting;

[0021] Fig.11 yes Fig.10 The state diagram of the last two small width base plates when cut.

[0022] In the figure: 1- shearing machine; 11- feeding platform; 12- pressing mechanism; 121- single-acting cylinder; 122- pressing foot; 123- return spring; 13- shearing mechanism; 14- back stop mechanism; 2- delivery plate; 21- delivery support protrusion; 22- support mounting nut; 23- support bolt; 24- bolt avoidance; 3- operating structure; 9- original plate; 91- intermediate plate; 92- base plate. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0024] Shearing machine feeding auxiliary device, used for assisting the delivery of intermediate plate 91 on the shearing machine 1, such as Figure 2 As shown, the shearing machine 1 is provided with a feed platform 11, and a plurality of pressing mechanisms 12 are provided above the feed platform 11. A shearing mechanism 13 is provided at the inner end of the feed platform 11. Of course, a rear stop mechanism 14 is also provided on the side of the shearing mechanism 13 away from the feed platform 11. The intermediate plate 91 is delivered into the shearing machine 1 through the feed platform 11 until the inner end of the intermediate plate 91 is positioned against the rear stop mechanism 14. After opening, the pressing mechanism 12 presses the intermediate plate 91, and the shearing mechanism 13 shears the intermediate plate 91. Among them, the intermediate plate 91 is a collection of multiple basic plates 92 that have been laid out, such as Figure 6 and Fig.10 As shown, it can be delivered in sequence to complete the shearing of multiple basic panels 92 one by one. The above is a well-known technology and will not be repeated here.

[0025] like Figure 1 As shown, the device includes a delivery plate 2 for abutting against the upper surface of the intermediate plate 91, a delivery abutment protrusion 21 is fixedly provided on the delivery plate 2 at the outer end of the intermediate plate 91, and an operating structure 3 is provided at the outer end of the delivery plate 2; Figure 5 As shown, the width of the delivery plate 2 is greater than the spacing of the pressing mechanism 12. Figure 1 , Figure 3 and Figure 4 As shown, the height of the delivery abutment protrusion 21 is smaller than the thickness of the intermediate plate 91. The width of the delivery plate 2 is relative to the delivery direction, that is, the dimension of the delivery plate 2 perpendicular to the delivery direction is the width.

[0026] When in use, especially when the last two small width basic plates 92 are cut, as Figures 3 to 5As shown, the delivery plate 2 is used to abut against the upper surface of the middle plate 91 and deliver it into the shearing machine 1. The delivery abutment protrusion 21 can abut against the outer end of the middle plate 91 and drive it to be delivered into the shearing machine 1 until it abuts against the rear stop mechanism 14 to form a position. The width of the base plate 92 mentioned above refers to the smaller dimension of the rectangular base plate 92 as the width, and correspondingly, the larger dimension as the length.

[0027] In the above process, the delivery plate 2 is equivalent to extending the outward extension length of the middle plate 91, so that the worker's hand does not need to go deep into the position of the pressing mechanism 12, avoiding the deep delivery of the plate, and significantly reducing the risk of hand injury. The pressing mechanism 12 presses the middle plate 91 on the delivery plate 2 to form an indirect pressing; the delivery plate 2 can be pressed by two pressing mechanisms 12 at the same time, and coupled with the limitation of the delivery abutment protrusion 21, the middle plate 91 can maintain a firm pressing, and is not easy to rotate during shearing, which is conducive to reducing the generation of waste. In addition, the pressing mechanism 12 is usually a single-acting cylinder 121 that drives the presser foot 122 downward to overcome the spring force of the return spring 123 to form a pressing on the plate. The use of the delivery plate 2 will raise the height of the holding point, so that the single-acting cylinder 121 in the pressing mechanism 12 overcomes the relatively small spring force to form a pressing, and the pressing force is stronger, which further promotes the firm pressing of the middle plate 91, which is conducive to reducing the generation of waste.

[0028] Preferably, if Figure 5 As shown, the delivery plate 2 is provided with the delivery abutment protrusions 21 on both sides of each of the pressing mechanisms 12, so that each of the pressing mechanisms 12 has a delivery abutment protrusion 21 on both sides to limit the middle plate 91, so that during the shearing process, the middle plate 91 is pressed more firmly and is less likely to rotate, which is further beneficial to reduce the generation of waste parts.

[0029] like Figure 1 As shown, the upper surface of the delivery plate 2 in this embodiment is fixedly welded with abutment mounting nuts 22, and each of the abutment mounting nuts 22 is respectively installed with abutment bolts 23 whose lower ends extend out of the lower surface of the delivery plate 2, and the delivery plate 2 is provided with bolt avoidance openings 24 corresponding to the abutment bolts 23; the portion of the abutment bolts 23 extending out of the lower surface of the delivery plate 2 constitutes the delivery abutment protrusion 21. Through this structure, the height of the delivery abutment protrusion 21 is adjustable, which is convenient for use with plates of different thicknesses.

[0030] The operating structure 3 includes an operating handle fixedly disposed at the outer end of the delivery plate 2 and extending in a direction away from the pressing mechanism 12 , so as to facilitate manual auxiliary feeding operations by holding the operating structure 3 .

[0031] This embodiment uses a simple delivery plate 2 and a delivery support protrusion 21 structure to replace manual labor to reach the material pressing mechanism 12 for feeding, significantly reducing the risk of hand injury. The delivery plate 2 can be held by at least two material pressing mechanisms 12 at the same time, and the delivery plate 2 can form a firm holding state. In addition, due to the restriction of the delivery support protrusion 21 thereon, the intermediate plate 91 is held by at least two material pressing mechanisms 12 and blocked by at least two delivery support protrusions 21, and the holding is firm, which is conducive to reducing the generation of waste parts. This embodiment has a simple structure and a small overall weight, which is convenient for manual use.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A feeding auxiliary device for a plate shearing machine, used for assisting the delivery of intermediate plates on a plate shearing machine, wherein the plate shearing machine is provided with a feeding platform, a plurality of pressing mechanisms are provided above the feeding platform, and a shearing mechanism is provided at the inner end of the feeding platform, characterized in that: It includes a delivery plate for abutting against the upper surface of the intermediate plate, a delivery abutment protrusion is fixedly provided on the delivery plate at the outer end of the intermediate plate, and an operating structure is provided at the outer end of the delivery plate; the width of the delivery plate is greater than the spacing setting of the pressing mechanism, and the height of the delivery abutment protrusion is less than the thickness setting of the intermediate plate.

2. The shearing machine feeding auxiliary device according to claim 1, characterized in that: Abutment mounting nuts are fixedly welded on the upper surface of the delivery plate, and each of the abutment mounting nuts is respectively equipped with abutment bolts whose lower ends extend out of the lower surface of the delivery plate. The delivery plate is provided with bolt avoidance openings corresponding to the abutment bolts; the portion of the abutment bolts extending out of the lower surface of the delivery plate constitutes the delivery abutment protrusion.

3. The shearing machine feeding auxiliary device according to claim 1, characterized in that: The delivery plate is provided with delivery abutment protrusions at both sides of each of the pressing mechanisms.

4. The shearing machine feeding auxiliary device according to claim 1, characterized in that: The operating structure comprises an operating handle fixedly arranged at the outer end of the delivery plate and extending in a direction away from the pressing mechanism.

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