Gantry type feeding auxiliary machine of net punching machine

Abstract

The utility model relates to a gantry type feeding auxiliary machine of a net punching machine, which belongs to the field of net punching machine equipment and comprises a base, a gantry type feeding auxiliary machine clamping mechanism, a reciprocating motion pushing mechanism and a material supporting frame, the base extends in the front-back direction, and the gantry type feeding auxiliary machine clamping mechanism is arranged above the base in a left-right crossing mode. The gantry type feeding auxiliary machine clamping mechanism is provided with a material passing area penetrating through the gantry type feeding auxiliary machine clamping mechanism front and back, the material supporting frame is erected at the upper end of the base and extends from back to front to be fixedly connected with a net punching machine body, the material supporting frame penetrates through the material passing area, and the reciprocating motion pushing mechanism is installed on the base and connected with the gantry type feeding auxiliary machine clamping mechanism. And the clamping mechanism of the gantry type feeding auxiliary machine is used for clamping or loosening the plate or the strip on the material supporting frame in the vertical direction. The feeding mechanism has the advantages that the feeding mechanism can be suitable for clamping and feeding thin plates, middle plates, thick plates, strip materials and coiled strip materials, the feeding precision is high, and the common problems that a traditional large net punching machine is low in feeding precision, multiple in waste plate heads, difficult to feed, unstable in feeding and inconsistent in quality are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a punching screen machine equipment field, in particular to a punching screen machine gantry type feeding attachment. BACKGROUND

[0002] At present, the existing punching screen machine feeding modes in the industry mainly have the following two kinds:

[0003] I. Roll shaft feeding: the material belt is clamped and lifted through upper and lower roll shafts, and the roll shaft is driven to rotate by a motor to feed.

[0004] Advantages: simple, intuitive, convenient, low cost, less waste material head when feeding thin material, no need to weld butt joint material, time and labor saving and high efficiency.

[0005] Disadvantages: only suitable for feeding thin material, poor precision when feeding plate material or thick plate, long and more waste material head, and unable to use plate material welding.

[0006] II. Front clamping type attachment feeding: the material is placed on the material clamping chuck in front of the attachment drag plate, and the attachment drag plate and the material plate are driven forward by the motor driven screw rod and the sliding block. This kind of mode has the following advantages and disadvantages.

[0007] Advantages: simple, convenient, high precision, can feed plate material, medium-thick plate, short waste head and can be welded, low scrap rate.

[0008] Disadvantages: unable to feed material and thin plate, only plate material can be fed, resulting in many waste plate heads, although it can be welded, but it is time-consuming and labor-saving, and the welding deformation will affect the product quality, and the production efficiency is low.

[0009] Therefore, a punching screen machine gantry type feeding attachment needs to be developed to solve the common problems of low feeding precision, many waste plate heads, difficult feeding, unstable feeding, and inconsistent quality of the existing punching screen machine. INVENTION CONTENTS

[0010] The utility model solves the technical problem that a punching screen machine gantry type feeding attachment is provided to effectively overcome the defects of the prior art.

[0011] The technical solution of the utility model to solve the above technical problems is as follows:

[0012] A portal type feeding attachment of a screen punching machine comprises a base, a portal type feeding attachment material clamping mechanism, a reciprocating pushing mechanism and a material supporting frame, the base extends in the front-rear direction, the portal type feeding attachment material clamping mechanism is horizontally arranged above the base, the portal type feeding attachment material clamping mechanism has a material passing area extending therethrough in the front-rear direction, the material supporting frame is arranged on the upper end of the base and extends from the rear to the front to be connected and fixed to the screen punching machine body, the material supporting frame extends through the material passing area, the reciprocating pushing mechanism is arranged on the base and connected to the portal type feeding attachment material clamping mechanism to drive the portal type feeding attachment material clamping mechanism to move in the front-rear direction, and the portal type feeding attachment material clamping mechanism is used for clamping or releasing the plate or strip material on the material supporting frame in the up-down direction.

[0013] Based on the technical scheme, the utility model further can make improvements as follows.

[0014] Further, the material supporting frame comprises a plurality of material supporting rods extending in the front-rear direction, the plurality of material supporting rods are arranged at intervals in the left-right direction, the rear ends of the material supporting rods are arranged on the rear end of the base through supports, and the front ends of the material supporting rods are fixed to the screen punching machine body through support members.

[0015] Further, the portal type feeding attachment material clamping mechanism comprises a H-shaped material clamping support frame and a plurality of up-down material clamping assemblies, the material clamping support frame is vertically arranged transversely and extends across the upper end of the base, the plurality of up-down material clamping assemblies are arranged at intervals in the left-right direction in the material clamping support frame, the through area of the material clamping support frame constitutes the material passing area, and the reciprocating pushing mechanism is connected to the material clamping support frame.

[0016] Further, the up-down material clamping assembly comprises a front-rear extending lower palate, a front-rear extending upper palate and an air bag, the lower palate is fixed to the upper end of the lower cross beam of the material clamping support frame and located in the material supporting frame, the upper end of the lower palate is flush with the upper end of the material supporting frame, the upper palate is arranged above the lower palate, the upper portions of the front-rear ends of the lower palate are respectively provided with elastic floating connecting members, the elastic floating connecting members are respectively connected and fixed to the front and rear sides of the upper cross beam of the material clamping support frame, the air bag is fixed to the lower end of the upper cross beam of the material clamping support frame and connected to an air filling device through a pipeline, the air bag is used for pushing and pressing the upper palate downwards to be close to the lower palate after being filled with air, so as to clamp the plate or strip material passing between the two and drive the elastic floating connecting members to be stretched downwards, and after the air bag is exhausted, the elastic floating connecting members are contracted and drive the upper palate to move upwards, so as to release the plate or strip material.

[0017] Further, the elastic floating connector comprises a mounting bracket, a column pin and a spring, the column pin vertically penetrates the mounting bracket, and the lower end is fixedly connected with the corresponding end of the upper palate plate, the spring is sleeved outside the column pin and is connected between the upper part of the upper palate plate and the upper end of the column pin, and the mounting bracket is fixed to the front and rear sides of the upper cross beam of the material clamping support frame.

[0018] Further, the front and rear ends of the upper part of the lower palate plate are respectively provided with clamping tooth patterns, the front and rear sides of the lower part of the upper palate plate are respectively embedded with wear-resistant chucks, and the lower surface of the wear-resistant chuck is provided with clamping sawteeth matched with the clamping tooth patterns.

[0019] Further, the utility model also comprises a drag plate, the drag plate is slidably arranged on the upper end of the base and is located below the material supporting frame, the front end of the drag plate is fixedly connected with the lower end of the material clamping support frame, and the reciprocating pushing mechanism is connected with the drag plate.

[0020] Further, the upper end of the base is respectively provided with guide rails extending in the front-rear direction on the left and right sides, the lower end of the drag plate is respectively provided with sliding blocks on the left and right sides, and the sliding blocks are slidably assembled with the guide rails on the corresponding sides.

[0021] Further, the utility model also comprises two groups of material feeding positioning adjusters, the material feeding positioning adjuster comprises a plurality of positioning blocks extending in the left-right direction, the plurality of positioning blocks are arranged in a row in the left-right direction at intervals, the plurality of positioning blocks of one group of the material feeding positioning adjusters are arranged on the upper end of the drag plate and are correspondingly arranged at the rear end of the lower palate plate, and the two positioning blocks at the two ends of the drag plate extend out of the left and right sides of the drag plate, the two positioning blocks at the two ends are respectively vertically provided with guide columns away from each other at the upper end, the mounting positions of the positioning blocks in the left-right direction are adjustable, the other group of the material feeding positioning adjusters are arranged behind one group of the material feeding positioning adjusters, the two groups of the material feeding positioning adjusters are identical in structure, and the positioning blocks of the two groups of the material feeding positioning adjusters are arranged in rows.

[0022] Further, the reciprocating pushing mechanism comprises a lead screw and a motor, the lead screw extends in the front-rear direction, the two ends of the lead screw are arranged at the middle positions of the upper parts of the front and rear ends of the base through the support frames rotatably assembled with the lead screw, a nut is screwed on the lead screw, the nut is connected with the lower end of the drag plate, and the motor is in transmission connection with the rear end of the lead screw.

[0023] The utility model discloses the beneficial effect is: the structure design is reasonable, and the material feeding range is wide, can be applicable to the thin plate, the middle plate, the thick plate, the strip material and the strip material of roll material's clamping and send, and the material feeding precision is high, solves the traditional large -scale net punching machine material feeding precision low, and the common fault of many waste board heads, difficult loading, unstable material feeding, inconsistent quality. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1The utility model discloses a three-dimensional structure of the portal type feeding attachment machine of the punching screen machine Figure 1 ;

[0025] Figure 2 The utility model discloses a three-dimensional structure of the portal type feeding attachment machine of the punching screen machine Figure 2 ;

[0026] Figure 3 The utility model discloses a three-dimensional structure of the portal type feeding attachment machine of the punching screen machine

[0027] Figure 4 The utility model discloses a three-dimensional structure of the portal type feeding attachment machine of the punching screen machine

[0028] Figure 5 The utility model discloses a three-dimensional structure of the portal type feeding attachment machine of the punching screen machine

[0029] Figure 6 The utility model discloses a three-dimensional structure of the portal type feeding attachment machine of the punching screen machine

[0030] In the drawing, the component list that each sign represents is as follows:

[0031] 1, base plate, 2, portal type feeding attachment material mechanism, 3, reciprocating movement pushing mechanism, 4, material support frame, 5, drag board, 6, feeding positioning regulator, 11, guide rail, 21, material clamping support frame, 22, upper and lower material clamping component, 31, screw, 32, motor, 33, nut, 41, material supporting rod, 51, sliding block, 61, positioning block, 62, guide column, 221, lower palate, 222, upper palate, 223, air bag, 224, elastic floating connecting piece, 2211, clamping tooth, 2221, wear -resisting chuck, 2241, column pin, 2242, spring. DETAILED DESCRIPTION

[0032] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used for explaining the utility model and are not used for limiting the scope of the utility model.

[0033] EMBODIMENT

[0034] As Figure 1 , 2The feeding device of the punching machine of the embodiment comprises a base 1, a portal feeding device 2, a reciprocating pushing mechanism 3 and a material supporting frame 4. The base 1 extends in the front-rear direction. The portal feeding device 2 is horizontally arranged above the base 1. The portal feeding device 2 has a material passing area extending through the front-rear direction. The material supporting frame 4 is arranged on the upper end of the base 1 and extends from the rear to the front to be connected and fixed with the punching machine body. The material supporting frame 4 extends through the material passing area. The reciprocating pushing mechanism 3 is arranged on the base 1 and connected with the portal feeding device 2 to drive the portal feeding device 2 to move in the front-rear direction. The portal feeding device 2 is used to clamp or release the material on the material supporting frame 4 in the up-down direction.

[0035] The operation process of the feeding device of the punching machine of the embodiment is as follows:

[0036] The material (plate material, belt material, coiled material, etc.) passes through the portal feeding device 2 along the material supporting frame 4. The portal feeding device 2 clamps the material. Then, under the driving of the reciprocating pushing mechanism 3, the portal feeding device 2 moves to the end of the material supporting frame 4 connected with the punching machine body, that is, to the punching machine below to convey the material. After that, the portal feeding device 2 releases the material. Under the driving of the reciprocating pushing mechanism 3, the portal feeding device 2 moves back to the original position. After returning, the portal feeding device 2 clamps the material again to convey the material to the punching machine below. Thus, the reciprocating feeding operation of clamping, feeding forward, releasing, feeding backward, clamping again and feeding forward again is formed. The whole feeding mode solves the common problems of low feeding precision, much waste plate head, difficult feeding, unstable feeding and inconsistent quality of the large punching machine, and avoids the shortcomings of the traditional feeding mode. The device saves time and labor, has high efficiency, less waste material, high product yield and good quality. The whole device can convey short plate material, long plate material, belt material and coiled material.

[0037] As a preferred embodiment, the material supporting frame 4 comprises a plurality of material supporting rods 41 extending in the front-rear direction. The plurality of material supporting rods 41 are horizontally spaced. The rear ends of the material supporting rods 41 are arranged on the rear end of the base 1 through supports. The front ends of the material supporting rods 41 are fixed on the punching machine body through supporting members.

[0038] In the above embodiment, the material supporting frame 4 has simple structure. The upper ends of the plurality of material supporting rods 41 are in the same horizontal plane, which can stably support the material.

[0039] In a preferred embodiment, the gantry-type feeding auxiliary clamping mechanism 2 includes a U-shaped clamping support frame 21 and multiple sets of upper and lower clamping components 22. The clamping support frame 21 is arranged horizontally and vertically and spans the upper end of the base 1. The multiple sets of upper and lower clamping components 22 are respectively installed in the clamping support frame 21 at intervals along the left and right directions. The internal through area of ​​the clamping support frame 21 constitutes the material passing area. The reciprocating moving pushing mechanism 3 is connected to the clamping support frame 21.

[0040] In the above implementation scheme, the material support frame 4 passes through the U-shaped clamping support frame 21. When conveying materials, multiple sets of upper and lower clamping components 22 clamp the materials evenly at multiple positions in the left and right directions. With the operation of the reciprocating moving pushing mechanism 3, the materials can be conveyed stably.

[0041] In this embodiment, the clamping support frame 21 includes an upper crossbeam a extending to the left and right, a lower crossbeam b, and upright plate supports on both sides. The upright plate supports on both sides are fixed between the left and right ends of the upper and lower crossbeams, forming an engineering U-shaped clamping support frame 21.

[0042] As a preferred implementation method, such as Figure 5 As shown, the aforementioned upper and lower clamping assembly 22 includes a lower jaw plate 221 extending forward and backward, an upper jaw plate 222 extending forward and backward, and an airbag 223. The lower jaw plate 221 is fixed to the upper end of the lower crossbeam of the clamping support frame 21 and is located in the material support frame 4. The upper end of the lower jaw plate 221 is flush with the upper end of the material support frame 4. The upper jaw plate 222 is disposed above the lower jaw plate 221. Elastic floating connectors 224 are respectively installed on the upper parts of the front and rear ends of the lower jaw plate 221. The elastic floating connectors 224 are respectively connected to the clamping support frame 221. The upper crossbeam of the material support frame 21 is fixedly connected to the front and rear sides. The airbag 223 is fixed to the lower end of the upper crossbeam of the material clamping support frame 21 and is connected to an inflation device through a pipeline. The airbag 223 is used to push the upper palate plate 222 down towards the lower palate plate 221 after inflation, thereby clamping the sheet or strip material passing between the two and driving the elastic floating connector 224 to stretch downward. After the airbag 223 deflates, the elastic floating connector 224 contracts and drives the upper palate plate 222 to move upward, thereby releasing the sheet or strip material.

[0043] In the above implementation scheme, the lower jaw plate 221 is fixed to the lower crossbeam of the clamping support frame 21. The material passes between the lower jaw plate 221 and the upper jaw plate 222. When the airbag 223 is inflated, the airbag 223 pushes the upper jaw plate 222 downwards and moves closer to the lower jaw plate 221 to clamp the sheet or strip. At the same time, the elastic floating connector 224 is stretched downwards. When the airbag 223 is deflated, the elastic floating connector 224 returns to its original shape and drives the upper jaw plate 222 upwards to return to its original position, thereby releasing the material. The design is quite ingenious.

[0044] In this embodiment, as shown in Figure 6 The elastic floating connector 224 includes a mounting bracket d, a pin 2241 vertically penetrating the mounting bracket, and a spring 2242 sleeved on the pin 2241 and connected between the upper end of the pin 2241 and the upper portion of the upper palate plate 222. The mounting bracket is fixed to the front and rear sides of the upper cross beam of the material clamping support frame 21. During the downward movement of the upper palate plate 222, the spring 2242 is stretched, and after the air bag 223 is deflated, the elastic force can drive the pin 2241 to move back to the original position, thereby driving the upper palate plate 222 to move back to the original position.

[0045] As a preferred embodiment, the front and rear ends of the upper portion of the lower palate plate 221 are respectively provided with clamping tooth patterns 2211, and the front and rear sides of the lower portion of the upper palate plate 222 are respectively embedded with wear-resistant chucks 2221. The lower surface of the wear-resistant chuck 2221 is provided with clamping sawteeth adapted to the clamping tooth patterns 2211.

[0046] In the above embodiment, the cooperation of the clamping tooth patterns 2211 and the clamping sawteeth can effectively prevent the material clamping plate from being loose or falling off.

[0047] In this embodiment, the wear-resistant chuck 2221 can be made of an alloy material available on the market.

[0048] In this embodiment, a drag plate 5 is further included, which is slidingly mounted on the upper end of the base 1 and located below the material supporting frame 4. The front end of the drag plate 5 is fixedly connected to the lower end of the material clamping support frame 21, and the reciprocating moving and pushing mechanism 3 is connected to the drag plate 5. The design of the drag plate 5 facilitates the stable assembly of the gantry type material feeding and clamping mechanism 2.

[0049] In this embodiment, the upper end of the base 1 is provided with guide rails 11 extending in the front-rear direction on the left and right sides, and the lower end of the drag plate 5 is provided with sliding blocks 51 on the left and right sides. The sliding blocks 51 are slidingly assembled with the corresponding guide rails 11. The cooperation of the guide rails 11 and the sliding blocks 51 makes the movement of the drag plate 5 and the gantry type material feeding and clamping mechanism 2 more smooth and stable.

[0050] As a preferred embodiment, the feeding positioning adjuster 6 comprises a plurality of positioning blocks 61 extending in the left-right direction, and the positioning blocks 61 are arranged in a row in the left-right direction. One set of the positioning blocks 61 is arranged on the upper end of the drag plate 5 and is arranged on the rear end of the lower palate plate 221 in a one-to-one correspondence. The two positioning blocks 61 at the two ends extend out of the left and right sides of the drag plate 5. The two positioning blocks 61 at the two ends are each vertically provided with a guide column 62 at the upper end. The mounting position of the positioning blocks 61 in the left-right direction is adjustable. Another set of the feeding positioning adjuster 6 is arranged behind the one set of the feeding positioning adjuster 6, and the two sets of the feeding positioning adjuster 6 have the same structure. The positioning blocks 61 of the two sets of the feeding positioning adjuster 6 are arranged in a row.

[0051] In the above embodiment, during the conveying of the material along the upper part of the material supporting frame 4, the left and right sides (i.e., the width direction) of the material are limited between the two guide columns 62 of each set. Since the mounting position of the guide column 62 is adjustable, i.e., the distance between the two guide columns 62 of each set is adjustable, the good conveying of the material of different width sizes can be adapted. Under the limitation of the two guide columns 62, the material will not deviate.

[0052] In the embodiment, in order to further reduce the friction between the material and the guide column 62 and the relative movement, a plurality of guide wheels can be sleeved on the guide column 62. A cap with a larger cross-sectional area than the main body is arranged at the upper end of the guide column 62. The guide wheels are limited between the cap and the positioning block 61.

[0053] In the embodiment, in each set of the feeding positioning adjuster 6, the width of the material is limited between the two guide columns 62 at the two ends, i.e., the material is located between the two guide columns 62 at the two ends. Through the adjustment of the two sets of the feeding positioning adjuster 6, the orientation of the material can be guided and corrected, so that the material can pass through the material passing area well and enter the screen printing machine smoothly.

[0054] In the embodiment, the upper end of the positioning block 61 can be at the same height as the upper end of the lower palate plate 221 or slightly lower than the upper end of the lower palate plate 221.

[0055] The reciprocating pushing mechanism 3 comprises a lead screw 31 and a motor 32. The lead screw 31 extends in the front-rear direction. The two ends of the lead screw 31 are arranged at the middle positions of the upper parts of the front and rear ends of the base 1 through support frames rotatably connected to the two ends. A nut 33 is screwed on the lead screw 31. The nut 33 is connected to the lower end of the drag plate 5. The motor 32 is in driving connection with the rear end of the lead screw 31.

[0056] In the embodiment, the motor 32 can be first connected to a speed reducer, and then the speed reducer is connected to the lead screw 31.

[0057] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0058] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0059] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0060] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0061] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0062] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A gantry-type feeding auxiliary machine for a screen punching machine, characterized in that: The device includes a base (1), a gantry-type feeding auxiliary clamping mechanism (2), a reciprocating moving pushing mechanism (3), and a material support frame (4). The base (1) extends in the front-to-back direction. The gantry-type feeding auxiliary clamping mechanism (2) is horizontally arranged above the base (1). The gantry-type feeding auxiliary clamping mechanism (2) has a material passage area that runs through it from front to back. The material support frame (4) is mounted on the upper end of the base (1) and extends from back to front to be connected and fixed to the punching machine body. The material support frame (4) runs through the material passage area. The reciprocating moving pushing mechanism (3) is mounted on the base (1) and connected to the gantry-type feeding auxiliary clamping mechanism (2) to drive the gantry-type feeding auxiliary clamping mechanism (2) to move back and forth. The gantry-type feeding auxiliary clamping mechanism (2) is used to clamp or release the plate or strip material on the material support frame (4) in the up-down direction.

2. The gantry-type feeding auxiliary machine for a screen punching machine according to claim 1, characterized in that: The material support frame (4) includes multiple material support rods (41) extending forward and backward. The multiple material support rods (41) are distributed at intervals on the left and right. The rear end of the material support rod (41) is mounted on the rear end of the base (1) through a bracket, and the front end of the material support rod (41) is fixed to the punching machine body through a support member.

3. The gantry-type feeding auxiliary machine for a screen punching machine according to claim 1, characterized in that: The gantry-type feeding auxiliary clamping mechanism (2) includes a U-shaped clamping support frame (21) and multiple sets of upper and lower clamping components (22). The clamping support frame (21) is arranged horizontally and vertically and spans the upper end of the base (1). Multiple sets of upper and lower clamping components (22) are respectively installed in the clamping support frame (21) at intervals along the left and right directions. The internal through area of ​​the clamping support frame (21) constitutes the material passing area. The reciprocating moving pushing mechanism (3) is connected to the clamping support frame (21).

4. The gantry-type feeding auxiliary machine for a screen punching machine according to claim 3, characterized in that: The upper and lower clamping assembly (22) includes a lower jaw plate (221) extending forward and backward, an upper jaw plate (222) extending forward and backward, and an airbag (223). The lower jaw plate (221) is fixed to the upper end of the lower crossbeam of the clamping support frame (21) and is located in the material support frame (4). The upper end of the lower jaw plate (221) is flush with the upper end of the material support frame (4). The upper jaw plate (222) is located above the lower jaw plate (221). Elastic floating connectors (224) are respectively installed on the upper parts of the front and rear ends of the lower jaw plate (221). The elastic floating connectors (224) are respectively connected to the upper part of the material support frame (4). The upper crossbeam of the clamping support frame (21) is fixedly connected to the front and rear sides. The airbag (223) is fixed to the lower end of the upper crossbeam of the clamping support frame (21) and connected to an inflation device through a pipeline. The airbag (223) is used to push the upper palate plate (222) down near the lower palate plate (221) after inflation, thereby clamping the sheet or strip material passing between them and driving the elastic floating connector (224) to stretch downward. After the airbag (223) deflates, the elastic floating connector (224) contracts and drives the upper palate plate (222) to move upward, thereby releasing the sheet or strip material.

5. A gantry-type feeding auxiliary machine for a screen punching machine according to claim 4, characterized in that: The elastic floating connector (224) includes a mounting bracket, a pin (2241) and a spring (2242). The pin (2241) extends vertically through the mounting bracket and its lower end is connected and fixed to the corresponding end of the palatal plate (222). The spring (2242) is sleeved on the pin (2241) and connected between the upper part of the palatal plate (222) and the upper end of the pin (2241). The mounting bracket is fixed to the front and rear sides of the upper crossbeam of the clamping support frame (21).

6. The gantry-type feeding auxiliary machine for a screen punching machine according to claim 4, characterized in that: The upper part of the lower jaw plate (221) is provided with clamping teeth (2211) at the front and rear ends respectively, and the lower part of the upper jaw plate (222) is provided with wear-resistant chucks (2221) on the front and rear sides respectively. The lower surface of the wear-resistant chucks (2221) is provided with clamping serrations that are adapted to the clamping teeth (2211).

7. A gantry-type feeding auxiliary machine for a screen punching machine according to claim 4, characterized in that: It also includes a slide plate (5), which is slidably mounted on the upper end of the base (1) and located below the material support frame (4). The front end of the slide plate (5) is connected and fixed to the lower end of the clamping support frame (21). The reciprocating moving push mechanism (3) is connected to the slide plate (5).

8. A gantry-type feeding auxiliary machine for a screen punching machine according to claim 7, characterized in that: The upper left and right sides of the base (1) are respectively provided with guide rails (11) extending in the front-back direction, and the lower left and right sides of the slide plate (5) are respectively provided with sliders (51), and the sliders (51) are slidably assembled with the guide rails (11) on the corresponding sides.

9. A gantry-type feeding auxiliary machine for a screen punching machine according to claim 7, characterized in that: It also includes two sets of feeding positioning adjusters (6). Each feeding positioning adjuster (6) includes multiple positioning blocks (61) extending in the left and right direction. The multiple positioning blocks (61) are arranged in a row at intervals in the left and right direction. The multiple positioning blocks (61) of one set of feeding positioning adjusters (6) are respectively mounted on the upper end of the slide plate (5) and are respectively set at the rear end of the lower jaw plate (221). The two positioning blocks (61) at both ends extend out of the left and right sides of the slide plate (5). The upper part of the two positioning blocks (61) at both ends, which are far away from each other, is vertically mounted with guide posts (62). The installation position of the positioning blocks (61) in the left and right direction is adjustable. The other set of feeding positioning adjusters (6) is distributed behind one set of feeding positioning adjusters (6), and the two sets have the same structure. The positioning blocks (61) of the two sets of feeding positioning adjusters (6) are arranged in rows and columns.

10. A gantry-type feeding auxiliary machine for a screen punching machine according to claim 7, characterized in that: The reciprocating moving push mechanism (3) includes a lead screw (31) and a motor (32). The lead screw (31) extends in the front-back direction, and its two ends are respectively mounted on the middle position of the upper part of the front and rear ends of the base (1) through support frames that are rotatably assembled with it. A nut (33) is screwed on the lead screw (31), and the nut (33) is connected to the lower end of the slide plate (5). The motor (32) is drivenly connected to the rear end of the lead screw (31).

Images