Digital archive unloading and collecting equipment

Abstract

The utility model discloses a digital archive transfer collection device which comprises a bottom plate and an archive scanner fixedly installed on the left side of the top of the bottom plate, the right end of the archive scanner is integrally provided with a scanner lens, and the top of the bottom plate is fixedly connected with two rectangular clamping sleeves. And the same quick-release smoothing and paper pressing mechanism is movably clamped in the two rectangular clamping sleeves. According to the utility model, a series of structures are arranged, so that the paper archives can be rolled and smoothed conveniently, auxiliary illumination is integrally and automatically carried out after smoothing, the phenomenon that scanning work is influenced by a dark environment and tilting and wrinkling of the paper archives is reduced, the scanning effect is improved, the rolling and smoothing distance formed by the two rollers can be flexibly adjusted conveniently according to the length of paper, and the working efficiency is improved. The quick-disassembly type smoothing and paper pressing mechanism is convenient to disassemble and assemble and can be flexibly and circularly utilized, and the practicability is improved as the quick-disassembly type smoothing and paper pressing mechanism is convenient and fast to disassemble and assemble and can be used for smoothing and holding after being not separated from the side of the paper file.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of file collection, in particular to digital file conversion and collection equipment. BACKGROUND

[0002] File digitization is to store information into computer database through scanning, inputting and other ways, so as to realize quick and convenient retrieval, fast and simple synchronous backup, small storage space, convenient maintenance, safety and other functions. File management digitization is the inevitable requirement of the information age, and the construction of digital file management should focus on the selection of file management software. The file scanner is a high-speed scanning scanner specially used for scanning and converting paper documents or files. It is the basic application equipment for digital file conversion and collection. For example, the high-speed scanning scanner with model D4316 A3 has the functions of scanning and copying documents, bills, ID cards and notes. Combined with data line and computer, it can realize the conversion of paper documents to digital files.

[0003] The existing digital file conversion and collection equipment has the following disadvantages in use: old paper files are prone to be raised or wrinkled, and cannot be flattened and integrated with auxiliary lighting during use, which reduces the scanning effect. Therefore, the digital file conversion and collection equipment is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing digital file conversion and collection equipment to solve the problems in the background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: digital file conversion and collection equipment, including bottom plate and file scanner fixedly installed on the top left side of the bottom plate, the right end of the file scanner is integrally provided with scanner lens, the top of the bottom plate is fixedly connected with two rectangular clamping sleeves, and the same quick release type flattening paper pressing mechanism is movably clamped in the two rectangular clamping sleeves; wherein the file scanner is a high-speed scanning scanner with model D4316 A3, and the file scanner is arranged to cooperate with the computer to scan, collect and convert paper files into digital files.

[0006] The quick release type flattening paper pressing mechanism comprises a U-shaped top rod arranged above the bottom plate, a storage battery fixedly installed on the top right side of the U-shaped top rod, a PLC controller fixedly installed on the top of the storage battery, an illuminating lamp fixedly installed on the bottom of the storage battery and inclinedly arranged in the U-shaped top rod, an electric telescopic rod fixedly installed on the top of the U-shaped top rod on both sides, and a U-shaped lifting rod fixedly connected with the extension ends of the two electric telescopic rods and extending below the U-shaped top rod; the two electric telescopic rods are arranged to drive the U-shaped lifting rod to move up and down.

[0007] The bottom of the U-shaped top rod is fixedly connected with vertical guide support assemblies for vertically guiding the U-shaped lifting rod, the vertical guide support assemblies are movably clamped in the corresponding rectangular clamping sleeves, an adjustable limiting touch assembly is installed on the vertical guide support assembly on the right side, the adjustable limiting touch assembly, the electric telescopic rod and the illuminating lamp are electrically connected with the PLC controller, the electric telescopic rod, the illuminating lamp and the PLC controller are electrically connected with the storage battery, and a rolling and pressing assembly is installed on the bottom rear side of the U-shaped lifting rod.

[0008] Preferably, the vertical guide support assembly comprises a rectangular iron guide plate movably clamped in the corresponding rectangular clamping sleeve, the bottom of the U-shaped top rod is fixedly connected with the top of the corresponding rectangular iron guide plate, and the rectangular iron guide plate is slidably sleeved with a rectangular sliding sleeve, and the sides close to the two rectangular sliding sleeves are fixedly connected with the two sides of the U-shaped lifting rod.

[0009] Preferably, the adjustable limiting touch assembly comprises an L-shaped sliding block slidably sleeved on the outer side of the rectangular iron guide plate on the right side, a microswitch located below the U-shaped lifting rod is fixedly connected to the top left side of the L-shaped sliding block, a T-shaped bolt is tightly contacted on the right side of the rectangular iron guide plate on the right side, the L-shaped sliding block is threadedly sleeved on the T-shaped bolt, and the microswitch is electrically connected with the PLC controller.

[0010] Preferably, the rolling and pressing assembly comprises two inclined supporting rods hingedly connected to the bottom rear side of the U-shaped lifting rod and symmetrically arranged, a rotating roller is rotatably installed on the front bottom of the inclined supporting rod, two elastic belts are fixedly connected between the sides close to the two inclined supporting rods, a T-shaped limiting block is fixedly connected to the bottom rear side of the U-shaped lifting rod, and the top of the side close to the two inclined supporting rods is movably contacted with the T-shaped limiting block.

[0011] Preferably, the rectangular clamping sleeve is provided with a magnet block adhesively fixed to the top of the bottom plate, and the bottom of the rectangular iron guide plate is attracted to the top of the corresponding magnet block.

[0012] Preferably, the scanner lens is located above the inner side of the U-shaped top rod and the U-shaped lifting rod.

[0013] Preferably, a rectangular guide hole slidably sleeved with the outer side of the rectangular iron guide plate on the right side is formed in the top of the L-shaped sliding block, and a threaded hole threadedly connected with the T-shaped bolt is formed in the right side of the L-shaped sliding block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Through the combination of the set PLC controller, U-shaped top rod, U-shaped lifting rod, electric telescopic rod, vertical guide support assembly, adjustable limit touch assembly and rolling pressing assembly, it can roll and flatten paper documents and automatically provide auxiliary lighting after flattening, reducing the phenomenon of dim environment and paper document wrinkles affecting scanning work, and improving scanning effect;

[0016] 2. It can also flexibly adjust the rolling and smoothing distance between the two rollers according to the length of the paper, so that it does not come out of the edge of the paper document for smoothing and pressing work, further improving the flexibility of use;

[0017] 3. The quick-release paper-pressing mechanism is easy to assemble and disassemble by means of the vertical guide support components, rectangular sleeves and magnetic blocks. This allows personnel to use it flexibly according to the condition of the paper files. For example, it can be removed when the files are new, clean and flat and the environment is bright. Otherwise, it can be used for auxiliary work. The quick-release paper-pressing mechanism can be reused by means of its individual disassembly, which improves its practicality.

[0018] This utility model, through a series of structures, facilitates the rolling and smoothing of paper documents and automatically provides auxiliary lighting after smoothing, reducing the impact of dim environments and paper wrinkles on scanning work, thus improving scanning results. It also allows for flexible adjustment of the rolling and smoothing distance between the two rollers according to the paper length, ensuring that the paper does not slip off the edges of the document during smoothing and pressing, further enhancing its flexibility. Additionally, the quick-release smoothing and pressing mechanism can be easily disassembled and reused, improving its practicality. Attached Figure Description

[0019] Fig. 1 This is a schematic diagram of the structure of the digital archive transfer and acquisition device proposed in this utility model;

[0020] Fig. 2 This is a schematic diagram of the quick-release paper-pressing mechanism and the disassembly structure of the base plate of the digital archive transfer and acquisition device proposed in this utility model.

[0021] Fig. 3 This is a schematic diagram of the front view cross-sectional structure of the digital archive transfer and acquisition device proposed in this utility model.

[0022] In the diagram: 1. Base plate; 101. Rectangular sleeve; 2. Document scanner; 201. Scanner lens; 3. U-shaped lifting rod; 301. Rectangular sliding sleeve; 3011. Rectangular iron guide plate; 302. U-shaped top rod; 303. Electric telescopic rod; 304. PLC controller; 305. Lighting lamp; 306. L-shaped slider; 3061. T-bolt; 3062. Tactile switch; 307. Diagonal support rod; 3071. Elastic band; 3072. Rotary roller; 3073. T-shaped limit block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figs. 1 to 3 As shown, the digital archive transfer and acquisition device proposed in this embodiment includes a base plate 1 and an archive scanner 2 fixedly installed on the top left side of the base plate 1. The right end of the archive scanner 2 is integrally provided with a scanner lens 201. Two rectangular card sleeves 101 are fixedly connected to the top of the base plate 1. The same quick-release paper-pressing mechanism is movably installed in the two rectangular card sleeves 101. The archive scanner 2 is a D4316 A3 high-speed scanner. The archive scanner 2 is used to cooperate with a computer to scan, acquire, and transfer paper archives into digital archives.

[0025] The quick-release paper-pressing mechanism includes a U-shaped top rod 302 mounted above the base plate 1. A battery is fixedly installed on the top right side of the U-shaped top rod 302. A PLC controller 304 is fixedly installed on the top of the battery. A lighting lamp 305, located inside the U-shaped top rod 302 and inclined, is fixedly installed at the bottom of the battery. Electric telescopic rods 303 are fixedly installed on both sides of the top of the U-shaped top rod 302. The extended ends of the two electric telescopic rods 303 extend to the bottom of the U-shaped top rod 302 and are fixedly connected to the same U-shaped lifting rod 3. The scanner lens 201 is located above the inner side of the U-shaped top rod 302 and the U-shaped lifting rod 3. The two electric telescopic rods 303 are used to drive the U-shaped lifting rod 3 to move up and down.

[0026] The bottom of the U-shaped top rod 302 is fixedly connected with vertical guide support assemblies for vertically guiding the U-shaped lifting rod 3, the vertical guide support assemblies are movably clamped in the corresponding rectangular clamping sleeves 101, an adjustable limiting touch assembly is installed on the vertical guide support assembly located on the right side, the adjustable limiting touch assembly, the electric telescopic rod 303 and the illuminating lamp 305 are electrically connected with the PLC controller 304, the electric telescopic rod 303, the illuminating lamp 305 and the PLC controller 304 are electrically connected with the storage battery, and a rolling and pressing assembly is installed on the bottom rear side of the U-shaped lifting rod 3; the vertical guide support assembly is used for supporting work and vertically guiding the U-shaped lifting rod 3, the adjustable limiting touch assembly is used for limiting the descending height of the U-shaped lifting rod 3 and being touched and transmitting a corresponding control signal to the PLC controller 304 when the U-shaped lifting rod 3 descends to a set height, so that the PLC controller 304 controls the electric telescopic rod 303 to be closed and the illuminating lamp 305 to be turned on according to a set programming program, automatic descending limiting and auxiliary lighting work are performed, and the rolling and pressing assembly is used for automatically pressing and flattening the placed paper archives when the U-shaped lifting rod 3 moves downward.

[0027] Specifically, the vertical guide support assembly comprises a rectangular iron guide plate 3011 movably clamped in the corresponding rectangular clamping sleeve 101, the bottom of the U-shaped top rod 302 is fixedly connected with the top of the corresponding rectangular iron guide plate 3011, the rectangular iron guide plate 3011 is slidably sleeved with a rectangular sliding sleeve 301, the sides close to each other of the two rectangular sliding sleeves 301 are fixedly connected with the two sides of the U-shaped lifting rod 3, respectively, a magnet block is arranged in the rectangular clamping sleeve 101 and adhesively fixed on the top of the bottom plate 1, the bottom of the rectangular iron guide plate 3011 is attracted to the top of the corresponding magnet block, the arranged magnet block has the effect of conveniently magnetically attracting the rectangular iron guide plate 3011, and the rectangular iron guide plate 3011 and the rectangular clamping sleeve 101 are movably clamped, so that the rectangular iron guide plate 3011 can be conveniently disassembled and assembled by simply plugging and unplugging; the rectangular iron guide plate 3011 and the rectangular sliding sleeve 301 are arranged in cooperation, the rectangular iron guide plate 3011 is used for supporting the U-shaped top rod 302, and the rectangular sliding sleeve 301 is used for vertically sliding on the corresponding rectangular iron guide plate 3011 to vertically guide the U-shaped lifting rod 3.

[0028] Further, the adjustable limiting touch component includes an L-shaped sliding block 306 slidingly sleeved outside the right rectangular iron guide plate 3011, wherein a rectangular guide hole is formed in the top of the L-shaped sliding block 306 to slidingly sleeve the right rectangular iron guide plate 3011, thereby achieving vertical sliding guide of the L-shaped sliding block 306; a micro switch 3062 is fixedly connected to the top left side of the L-shaped sliding block 306 and located below the U-shaped lifting rod 3; a T-shaped bolt 3061 is in contact with the right side of the right rectangular iron guide plate 3011; the L-shaped sliding block 306 is threadedly sleeved on the T-shaped bolt 3061, wherein a threaded hole is formed in the right side of the L-shaped sliding block 306 to threadedly connect the T-shaped bolt 3061; and the micro switch 3062 is electrically connected with the PLC controller 304; the L-shaped sliding block 306, the T-shaped bolt 3061 and the micro switch 3062 are cooperatively arranged, when the U-shaped lifting rod 3 moves downward to press the micro switch 3062, the micro switch 3062 is triggered and transmits a corresponding control signal to the PLC controller 304, so that the PLC controller 304 controls the electric telescopic rod 303 to be closed and the illuminating lamp 305 to be turned on according to the set programming program, thereby achieving automatic downward limiting and auxiliary lighting effects; the T-shaped bolt 3061 is reversely rotated to separate the right side of the T-shaped bolt 3061 from the right rectangular iron guide plate 3011, thereby releasing the locking of the L-shaped sliding block 306; and the upward and downward movement of the L-shaped sliding block 306 can drive the micro switch 3062 to move upward and downward to adjust the limiting touch height; the forward rotation of the T-shaped bolt 3061 locks the L-shaped sliding block 306, thereby achieving the effect of conveniently and flexibly adjusting the limiting touch height.

[0029] Further, the rolling and pressing assembly comprises two inclined supporting rods 307 hingedly arranged at the rear bottom of the U-shaped lifting rod 3 and symmetrically arranged, and the front bottom of the inclined supporting rod 307 is rotationally provided with a rotating roller 3072, wherein the front bottom of the inclined supporting rod 307 is fixedly connected with a supporting shaft, the front end of the rotating roller 3072 is provided with a circular through hole, two bearings are fixedly arranged in the circular through hole, the inner ring of the bearing is fixedly sleeved with the outer side of the corresponding supporting shaft, thereby achieving the effect of rotationally arranging the rotating roller 3072, the two inclined supporting rods 307 are fixedly connected with two elastic belts 3071 on the side close to each other, the rear bottom of the U-shaped lifting rod 3 is fixedly connected with a T-shaped limiting block 3073, and the top of the side close to each other of the two inclined supporting rods 307 is in movable contact with the T-shaped limiting block 3073; the inclined supporting rod 307, the elastic belt 3071, the T-shaped limiting block 3073 and the rotating roller 3072 are arranged in cooperation, when the U-shaped lifting rod 3 moves downward, the two rotating rollers 3072 are driven downward by the two inclined supporting rods 307 to press on the paper archives, when the U-shaped lifting rod 3 continues to move downward, the two inclined supporting rods 307 are extruded, under the extrusion force, the two inclined supporting rods 307 rotate away from each other, and the two rotating rollers 3072 rotate away from each other to roll and extrude the paper archives, the two inclined supporting rods 307 rotating away from each other stretch the two elastic belts 3071, thereby achieving the effect of rolling and flattening the paper archives, preventing some old paper archives from being difficult to scan due to the factor of being raised, and cooperating with the effect of flexibly adjusting the limiting touch height, so that the rolling and flattening distance formed by the two rotating rollers 3072 can be adjusted according to the length of the paper, and the paper archives can be flattened and pressed after being pressed out of the side of the paper archives.

[0030] The use method of the embodiment is as follows: when the digital archive storage and collection equipment is used, the paper archives are placed on the bottom plate 1, the personnel control the PLC controller 304 to control the two electric telescopic rods 303 to start in the forward direction, drive the U-shaped lifting rod 3 to move downward, the U-shaped lifting rod 3 drives the two rectangular sliding sleeves 301 to slide downward on the corresponding rectangular iron guide plates 3011 to perform vertical guide work, when the U-shaped lifting rod 3 moves downward, the two rotating rollers 3072 are first driven downward by the two inclined supporting rods 307 to press on the paper archives, when the U-shaped lifting rod 3 continues to move downward, the two inclined supporting rods 307 are extruded by the U-shaped lifting rod 3, under the extrusion force, the two inclined supporting rods 307 rotate away from each other, and the two rotating rollers 3072 rotate away from each other to roll and extrude the paper archives, the two inclined supporting rods 307 rotating away from each other stretch the two elastic belts 3071, thereby achieving the effect of rolling and flattening the paper archives, preventing some old paper archives from being difficult to scan due to the factor of being raised;

[0031] When the U-shaped lifting rod 3 is lowered to press the micro switch 3062, the micro switch 3062 is triggered and a corresponding control signal is transmitted to the PLC controller 304, at this time, the PLC controller 304 controls the electric telescopic rod 303 to close and the lighting lamp 305 to open according to the set programming program, so that the automatic lowering limiting and auxiliary lighting effect are realized, and then the file scanner 2 is used to cooperate with the computer to scan and collect the paper file to store as a digital file, through the flattening processing, the auxiliary lighting is automatically performed after the flattening, the dark environment is reduced, and the phenomenon that the scanning work is affected due to the paper file being raised and wrinkled is reduced, and the scanning effect is effectively improved.

[0032] After use, the two electric telescopic rods 303 are controlled to be reversely started by the PLC controller 304 to drive the U-shaped lifting rod 3 to be upwardly returned, and the lighting lamp 305 is controlled to be turned off, the two inclined supporting rods 307 are upwardly moved when the U-shaped lifting rod 3 is upwardly moved, at this time, the two elastic belts 3071 in the stretching state drive the two inclined supporting rods 307 to be close to the return position, and waiting for the flattening and rolling utilization work again, in addition, the T-shaped bolt 3061 is reversely rotated to be separated from the right side of the rectangular iron guide plate 3011, and the L-shaped slider 306 is unlocked, the L-shaped slider 306 can be moved up and down to drive the micro switch 3062 to be moved up and down to adjust the limiting triggering height, the T-shaped bolt 3061 is locked to the L-shaped slider 306 to realize the effect that the limiting triggering height is conveniently and flexibly adjusted, through the limiting triggering height adjustment mode, since the rotating distance of the two rotating rollers 3072 is limited by the lowering height of the U-shaped lifting rod 3, the flattening and rolling distance formed by the two rotating rollers 3072 is adjusted according to the length of the paper, so that the flattening and rolling work is performed on the paper file without being separated from the side of the paper file, and the use flexibility is further improved.

[0033] In addition, the magnet block is arranged to conveniently magnetically attract the rectangular iron guide plate 3011, the rectangular iron guide plate 3011 is movably clamped with the rectangular sleeve 101, the rectangular iron guide plate 3011 is conveniently disassembled and assembled through the simple plug-in mode, so that the flattening and paper pressing mechanism is conveniently disassembled and assembled, the flattening and paper pressing mechanism is conveniently recycled, and the practicability is improved.

[0034] The PLC controller 304, the electric telescopic rod 303, the lighting lamp 305 and the micro switch 3062 in the utility model are well known to those skilled in the art, belong to conventional means or common knowledge, and those skilled in the art can arbitrarily select and match according to the needs or convenience, in addition, the PLC controller 304 is used to receive the corresponding signal transmitted by the micro switch 3062 when the micro switch 3062 is triggered to control the electric telescopic rod 303 to be closed and the lighting lamp 305 to be turned on, which is a basic programming control mode well known to those skilled in the art, and belongs to conventional means or common knowledge, and will not be described here.

[0035] It should be pointed out finally that: the above only for the preferred embodiments of the utility model have, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A digital archive transfer and acquisition device, comprising a base plate (1) and an archive scanner (2) fixedly installed on the top left side of the base plate (1), wherein a scanner lens (201) is integrally provided on the right end of the archive scanner (2), characterized in that: The top of the base plate (1) is fixedly connected to two rectangular sleeves (101), and the same quick-release paper-pressing mechanism is movably installed in the two rectangular sleeves (101). The quick-release paper-pressing mechanism includes a U-shaped top rod (302) set above the base plate (1). A battery is fixedly installed on the top right side of the U-shaped top rod (302). A PLC controller (304) is fixedly installed on the top of the battery. A lighting lamp (305) located inside the U-shaped top rod (302) and inclined is fixedly installed at the bottom of the battery. Electric telescopic rods (303) are fixedly installed on both sides of the top of the U-shaped top rod (302). The protruding ends of the two electric telescopic rods (303) extend to the bottom of the U-shaped top rod (302) and are fixedly connected to the same U-shaped lifting rod (3). Both sides of the bottom of the U-shaped top rod (302) are fixedly connected to vertical guide support components for vertically guiding the U-shaped lifting rod (3). The vertical guide support components are movably locked in the corresponding rectangular sleeves (101). An adjustable limit touch component is installed on the vertical guide support component on the right side. The adjustable limit touch component, the electric telescopic rod (303) and the lighting lamp (305) are all electrically connected to the PLC controller (304). The electric telescopic rod (303), the lighting lamp (305) and the PLC controller (304) are all electrically connected to the battery. A rolling pressing component is installed on the bottom rear side of the U-shaped lifting rod (3).

2. The digital archive transfer and acquisition device according to claim 1, characterized in that: The vertical guide support assembly includes a rectangular iron guide plate (3011) that is movably mounted in a corresponding rectangular sleeve (101). The bottom two sides of the U-shaped top rod (302) are fixedly connected to the top of the corresponding rectangular iron guide plate (3011). A rectangular sliding sleeve (301) is slidably mounted on the rectangular iron guide plate (3011). The two rectangular sliding sleeves (301) are fixedly connected to the two sides of the U-shaped lifting rod (3) on the side that is close to each other.

3. The digital archive transfer and acquisition device according to claim 2, characterized in that: The adjustable limit trigger assembly includes an L-shaped slider (306) that is slidably sleeved on the outside of a rectangular iron guide plate (3011) on the right side. A tactile switch (3062) located below a U-shaped lifting rod (3) is fixedly connected to the top left side of the L-shaped slider (306). A T-bolt (3061) is pressed against the right side of the rectangular iron guide plate (3011) on the right side. The L-shaped slider (306) is threaded onto the T-bolt (3061). The tactile switch (3062) is electrically connected to a PLC controller (304).

4. The digital archive transfer and acquisition device according to claim 1, characterized in that: The rolling pressing assembly includes two inclined support rods (307) hinged to the bottom rear side of the U-shaped lifting rod (3) and arranged symmetrically. A rotating roller (3072) is rotatably installed on the front bottom of the inclined support rod (307). Two elastic bands (3071) are fixedly connected between the two adjacent sides of the two inclined support rods (307). A T-shaped limiting block (3073) is fixedly connected to the bottom rear side of the U-shaped lifting rod (3). The top of the two adjacent sides of the inclined support rods (307) are in active contact with the T-shaped limiting block (3073).

5. The digital archive transfer and acquisition device according to claim 2, characterized in that: The rectangular sleeve (101) is provided with a magnet block that is bonded and fixed to the top of the base plate (1), and the bottom of the rectangular iron guide plate (3011) is attracted to the top of the corresponding magnet block.

6. The digital archive transfer and acquisition device according to claim 1, characterized in that: The scanner lens (201) is located above the inside of the U-shaped top rod (302) and the U-shaped lifting rod (3).

7. The digital archive transfer and acquisition device according to claim 3, characterized in that: The top of the L-shaped slider (306) is provided with a rectangular guide hole for sliding with the outer side of the rectangular iron guide plate (3011) on the right side, and the right side of the L-shaped slider (306) is provided with a threaded hole for threaded connection with the T-bolt (3061).

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