Auxiliary positioning device for flattening teeth of gripper bar of printing equipment

Abstract

The utility model relates to the technical field of printing tooth rows, in particular to an auxiliary positioning device for printing equipment tooth row tooth flattening, which comprises a clamping block and supporting plates, the two ends of the clamping block are fixedly connected with the supporting plates, the clamping block is internally provided with an adjusting mechanism, the supporting plates are internally provided with second through holes, the clamping block is internally fixedly connected with a semicircular ring, and the semicircular ring is fixedly connected with the clamping block. And a screw rod is in clearance fit with the interior of the second through hole, and a locking mechanism is arranged on the outer wall of the screw rod. Through cooperation of a worm, an incomplete worm gear, a pin rod, a sliding rod and a clamping block, the worm drives the incomplete worm gear to rotate, the incomplete worm gear drives the pin rod to move through a sliding groove formed in the incomplete worm gear, the pin rod drives the sliding rod to move, the sliding rod slides in a semicircular ring and drives the clamping block to move, and the clamping block is attached to the outer wall of a printing equipment tooth row. And the positions of the clamping blocks can be adjusted, so that the flat tooth auxiliary positioning of the printing equipment tooth rows with different sizes is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of printing gripper bars, in particular to an auxiliary positioning device for the flat teeth of a gripper bar of a printing device. Background Art

[0002] During printing, the printing press moves or flips the paper by gripping it with the teeth bar. The teeth bar needs to handle papers of different thicknesses and is a part that is easily worn. To avoid damaging the paper when the teeth bar bites it, a less-bite method is usually used to protect the printed paper. Before leveling the teeth, the entire teeth bar needs to be lifted up to open the teeth. Afterwards, a special leveling tool is used to calibrate and adjust the teeth so that they are even.

[0003] For example, patent number CN220841880U is an auxiliary positioning device for the flat teeth of a printing equipment tooth bar, including a first clamping block and an extension rod. The first clamping block and the extension rod are an integrated structure. The first clamping block and the extension rod cooperate to form a spoon-shaped structure. The inner side of the first clamping block is provided with a first arc groove; the second clamping block, the inner side of the second clamping block is provided with a second arc groove. The above document still has shortcomings. When in use, the overall structure of the device is simple and easy to make. It provides manufacturers with a portable tool that can open the teeth of the tooth bar by themselves, which is convenient for self-flat tooth maintenance, reduces maintenance costs, and improves production efficiency. The opening of the tooth bar is achieved through two small devices, which is simple to operate and achieves stable positioning when the tooth bar is opened. However, the positioning device in the above document can only assist in positioning the flat teeth of a printing equipment tooth bar of a fixed size when in use, and is not convenient for assisting in positioning the flat teeth of a printing equipment tooth bar of different sizes. At the same time, the clamping blocks on both sides are connected by a screw. When the device vibrates, the screw will loosen, making the connection performance of the screw to the two clamping blocks poor. Utility Model Content

[0004] The utility model aims to solve the problem of inconvenience in assisting the positioning of tooth bars and flat teeth of printing equipment with different sizes, and proposes an auxiliary positioning device for the tooth bars and flat teeth of printing equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An auxiliary positioning device for the flat teeth of a printing device is designed, comprising a clamping block and a support plate. Both ends of the clamping block are fixedly connected to the support plate. An adjustment mechanism is provided inside the clamping block. A second through hole is provided inside the support plate. A semicircular ring is fixed inside the clamping block. A screw is fitted in the internal clearance of the second through hole. A locking mechanism is provided on the outer wall of the screw.

[0007] Preferably, the adjustment mechanism includes a worm, the outer walls of both ends of the worm are rotatably connected to the clamping block through bearings, the worm is meshed with the incomplete worm wheel, the incomplete worm wheel is rotatably connected to the outer wall of the semicircular ring through bearings, the sliding groove arranged in the incomplete worm wheel is slidably connected to the outer wall of the pin rod, the pin rod is fixed to the surface of the sliding rod, the outer wall of the sliding rod is slidably connected to the semicircular ring, and the end of the sliding rod is fixed with a clamping block.

[0008] Preferably, the locking mechanism includes a nut and a first through hole, the nut is threadedly connected to the outer wall of the screw, the first through hole is arranged inside the screw, and an iron wire is fitted in the internal gap of the first through hole.

[0009] Preferably, a nut is fixedly connected to the upper end of the screw rod, and an extension rod is fixedly connected to the outer wall of the upper support plate.

[0010] Preferably, the internal thread of the extension rod is connected with a bolt.

[0011] Preferably, the clamping block fits against the outer wall of the tooth bar of the printing device, and the end of the worm is provided with a hexagonal hole.

[0012] The utility model proposes an auxiliary positioning device for the flat teeth of the printing equipment tooth bar, which has the beneficial effects of: through the cooperation between the worm, the incomplete worm gear, the pin rod, the slide rod and the clamping block, the worm drives the incomplete worm gear to rotate, the incomplete worm gear drives the pin rod to move through the internally arranged slide groove, the slide rod brought by the pin rod moves, the slide rod slides inside the semicircular ring and drives the clamping block to move, the clamping block fits with the outer wall of the printing equipment tooth bar, and the printing equipment tooth bar is assisted in flat teeth positioning, and the position of the clamping block can be adjusted, which is convenient for the auxiliary positioning of the flat teeth of printing equipment tooth bars of different sizes.

[0013] Through the cooperation between the nut, the first through hole and the iron wire, the nut is screwed in from the lower end of the screw, and the nut is screwed in until it is tightly fitted with the support plate below and the nut is stopped. At this time, the nut, the screw and the nut connect the upper and lower support plates to achieve the connection of the two blocks. The nut is now above the first through hole, and the iron wire is passed through the first through hole, and the two ends of the iron wire are bent. At this time, the iron wire is tightly fitted with the lower surface of the nut, and the iron wire will not separate from the screw in the bent state. Under the action of the iron wire, the nut moves downward on the screw, thereby making the connection between the two blocks more stable, and the screw has better connection performance on the two blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a structural sectional view of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the connection between the worm, pin and slide rod in the present invention;

[0017] Figure 4 This is a schematic structural diagram of the connection between the pin rod, the slide rod and the clamping block in the present invention;

[0018] Figure 5 This is a schematic structural diagram of the connection between the screw, nut and support plate in the present invention;

[0019] Figure 6 It is a structural schematic diagram of the connection between the screw, nut and through hole in the utility model.

[0020] In the figure: 1. Clamping block, 2. Support plate, 3. Adjusting mechanism, 301. Worm, 302. Incomplete worm gear, 303. Pin, 304. Sliding rod, 305. Clamping block, 4. Locking mechanism, 401. Nut, 402. First through hole, 403. Iron wire, 5. Second through hole, 6. Semicircular ring, 7. Printing equipment tooth bar, 8. Screw, 9. Nut, 10. Extension rod, 11. Bolt, 12. Hexagon socket hole. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Refer to the attached Figure 1-6 In this embodiment, an auxiliary positioning device for the flat teeth of a printing device gripper bar includes a clamping block 1 and a support plate 2. The support plates 2 are fixedly connected to both ends of the clamping block 1. An adjustment mechanism 3 is provided inside the clamping block 1. The adjustment mechanism 3 enables the device to perform flat teeth auxiliary positioning for gripper bars 7 of printing devices of different sizes. A second through hole 5 is provided inside the support plate 2. A semicircular ring 6 is fixedly connected to the interior of the clamping block 1.

[0023] The internal clearance of the second through hole 5 is fitted with a screw 8, which can pass through the second through hole 5. The outer wall of the screw 8 is provided with a locking mechanism 4, which increases the stability of the connection between the screw 8 and the two blocks 1. The upper end of the screw 8 is fixed with a nut 9, which drives the screw 8 to rotate. The outer wall of the upper support plate 2 is fixed with an extension rod 10, and the internal thread of the extension rod 10 is connected with a bolt 11. The bolt 11 cooperates with the extension rod 10 to connect the device to the printing equipment.

[0024] The adjusting mechanism 3 includes a worm 301, an incomplete worm gear 302, a pin 303, a slide 304 and a clamping block 305. The outer walls of both ends of the worm 301 are rotatably connected to the clamping block 1 through bearings. The worm 301 is meshed and connected with the incomplete worm gear 302. The worm 301 drives the incomplete worm gear 302 to rotate. The incomplete worm gear 302 is rotatably connected to the outer wall of the semicircular ring 6 through a bearing. A sliding groove provided in the incomplete worm gear 302 is slidably connected to the outer wall of the pin 303. The incomplete worm gear 302 drives the pin 303 to move through the sliding groove provided therein.

[0025] The pin rod 303 is fixed to the surface of the slide rod 304, and the pin rod 303 drives the slide rod 304 to move. The outer wall of the slide rod 304 is slidably connected to the semicircular ring 6, and the slide rod 304 slides inside the semicircular ring 6. The end of the slide rod 304 is fixed with a clamping block 305, and the slide rod 304 drives the clamping block 305 to move. The clamping block 305 fits with the outer wall of the printing device tooth row 7, and the clamping block 305 fits with the outer wall of the printing device tooth row 7 to position the printing device tooth row 7. The end of the worm 301 is provided with an inner hexagonal hole 12, and the worm 301 can be rotated by inserting a hexagonal wrench into the inner hexagonal hole 12;

[0026] The worm 301 drives the incomplete worm gear 302 to rotate, and the incomplete worm gear 302 drives the pin rod 303 to move through the internal sliding groove, and the slide rod 304 brought by the pin rod 303 moves. The slide rod 304 slides inside the semicircular ring 6 and drives the clamping block 305 to move. The clamping block 305 fits against the outer wall of the printing equipment tooth row 7 to assist in the flat tooth positioning of the printing equipment tooth row 7. The position of the clamping block 305 can be adjusted to facilitate the flat tooth auxiliary positioning of the printing equipment tooth rows 7 of different sizes.

[0027] The locking mechanism 4 includes a nut 401, a first through hole 402, and an iron wire 403. The nut 401 is threadedly connected to the outer wall of the screw 8. The nut 401 can be screwed into the outer wall of the screw 8. The first through hole 402 is set inside the screw 8. The internal gap of the first through hole 402 is fitted with the iron wire 403. The iron wire 403 is a common No. 8 metal iron wire that can be bent.

[0028] The nut 401 is screwed in from the lower end of the screw rod 8, and the nut 401 is screwed in until it is tightly fitted with the support plate 2 below and the nut 401 is stopped. At this time, the nut 401, the screw rod 8 and the nut 9 connect the upper and lower support plates 2 to achieve the connection of the two clamping blocks 1. The nut 401 is now above the first through hole 402. The iron wire is passed through the first through hole 402 and the two ends of the iron wire 403 are bent. At this time, the iron wire 403 is tightly fitted with the lower surface of the nut 403. The iron wire 403 will not separate from the screw rod 8 in the bent state. Under the action of the iron wire 403, the nut 401 moves downward on the screw rod 8, thereby making the connection between the two clamping blocks 1 more stable, and making the screw 8 have better connection performance on the two clamping blocks 401.

[0029] Working principle:

[0030] When using this auxiliary positioning device to perform auxiliary positioning of the tooth bar of the printing equipment;

[0031] Two card block connection stages:

[0032] Buckle both blocks 1 on the outside of the tooth row 7 of the printing equipment, and fit the two support plates 2 together. The second through holes 5 in the upper and lower support plates 2 correspond to each other. Pass the screw 8 between the upper and lower second through holes 5. The outer wall of the nut 9 fits with the upper support plate 2. Screw the nut 401 in from the lower end of the screw 8. Screw the nut 401 in until it fits tightly with the lower support plate 2 and stop turning the nut 401. At this time, the nut 401, the screw 8 and the nut 9 connect the upper and lower support plates 2 to achieve To achieve the connection between the two clamping blocks 1, the nut 401 is now above the first through hole 402, the iron wire is passed through the first through hole 402, and the two ends of the iron wire 403 are bent. At this time, the iron wire 403 is tightly fitted with the lower surface of the nut 403, and the iron wire 403 will not separate from the screw 8 in the bent state. Under the action of the iron wire 403, the nut 401 moves downward on the screw 8, thereby making the connection between the two clamping blocks 1 more stable, and making the screw 8 have better connection performance with the two clamping blocks 401;

[0033] Clamp position adjustment stage:

[0034] Use a hexagonal wrench to insert it into the inner hexagonal hole 12 and rotate the worm 301. The worm 301 drives the incomplete worm gear 302 to rotate. The incomplete worm gear 302 drives the pin 303 to move through the internal sliding groove. The slide rod 304 brought by the pin 303 moves. The slide rod 304 slides inside the semicircular ring 6 and drives the clamping block 305 to move. The clamping block 305 fits with the outer wall of the printing equipment tooth row 7 to assist in positioning the printing equipment tooth row 7. The position of the clamping block 305 can be adjusted to facilitate the assisting positioning of the printing equipment tooth rows 7 of different sizes. The bolt 11 is screwed into the interior of the extension rod 10, and then the extension rod 10 is fixed to the printing equipment by the bolt 11, thereby realizing the installation and fixation of the block 1.

[0035] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An auxiliary positioning device for tooth bar leveling of a printing device, comprising a clamping block (1) and a support plate (2), wherein both ends of the clamping block (1) are fixedly connected to the support plate (2), and characterized in that: An adjusting mechanism (3) is provided inside the clamping block (1), a second through hole (5) is provided inside the support plate (2), a semicircular ring (6) is fixed inside the clamping block (1), a screw (8) is fitted in the internal clearance of the second through hole (5), and a locking mechanism (4) is provided on the outer wall of the screw (8).

2. The auxiliary positioning device for the flat teeth of a printing device according to claim 1, characterized in that: The adjusting mechanism (3) comprises a worm (301), the outer walls of both ends of the worm (301) are rotatably connected to the clamping block (1) via bearings, the worm (301) is meshed and connected to the incomplete worm wheel (302), the incomplete worm wheel (302) is rotatably connected to the outer wall of the semicircular ring (6) via bearings, a sliding groove provided in the incomplete worm wheel (302) is slidably connected to the outer wall of the pin rod (303), the pin rod (303) is fixed to the surface of the sliding rod (304), the outer wall of the sliding rod (304) is slidably connected to the semicircular ring (6), and a clamping block (305) is fixed to the end of the sliding rod (304).

3. The auxiliary positioning device for the flat teeth of a printing device according to claim 1, characterized in that: The locking mechanism (4) comprises a nut (401) and a first through hole (402); the nut (401) is threadedly connected to the outer wall of the screw rod (8); the first through hole (402) is arranged inside the screw rod (8); and an iron wire (403) is fitted in the internal clearance of the first through hole (402).

4. The auxiliary positioning device for the flat teeth of a printing device according to claim 1, characterized in that: The upper end of the screw rod (8) is fixedly connected with a nut (9), and the outer wall of the upper support plate (2) is fixedly connected with an extension rod (10).

5. The auxiliary positioning device for the flat teeth of a printing device according to claim 4, characterized in that: The inner thread of the extension rod (10) is connected with a bolt (11).

6. The auxiliary positioning device for the flat teeth of a printing device according to claim 2, characterized in that: The clamping block (305) is fitted with the outer wall of the tooth bar (7) of the printing device, and the end of the worm (301) is provided with a hexagonal hole (12).

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