Paper feed rod rubber wheel installation fixture

Abstract

The present invention discloses a paper feed rod rubber wheel installation fixture, including a propulsion structure, a claw disk structure, a pull-back structure, and a base plate; the propulsion structure includes a propulsion cylinder, a propulsion slide, and an embedded cylinder, the propulsion cylinder is fixed to the base plate, the movable rod of the propulsion cylinder is connected to the propulsion slide, the propulsion slide is connected to the rear end of the embedded cylinder, a channel is provided in the embedded cylinder, and the channel extends from the rear end of the embedded cylinder to the front end of the embedded cylinder; the claw disk structure includes a disk base plate, a plurality of claw fingers, and each horizontal part sequentially forms a cylindrical body. The pull-back structure includes a pull-back cylinder, a pull-back slide, and a pull-back clamp ring, and the pull-back cylinder is fixed to the base plate. The propulsion structure is located on the left side of the claw disk structure, and the pull-back structure is located on the right side of the claw disk structure. Compared with the prior art, the paper feed rod rubber wheel installation process can save labor, the installation can be automated, the operation is convenient, and labor-saving, which can improve production efficiency and reduce labor costs. The present invention has a simple structure and is easy to manufacture.

Description

Technical Field

[0001] The invention relates to a paper feed rod rubber wheel mounting fixture, which is used for mounting the paper feed rod rubber wheel on a driving roller in a printer. Background Art

[0002] Conventional printers have a mechanism for feeding and unloading paper. This mechanism includes a drive roller, which has a drive wheel and a rod body. Multiple rubber rollers for paper feed rods are mounted on the rod body. During assembly, the inner ring of the rubber rollers must be expanded to allow the elastic force of the material to tighten around the drive roller. This is done manually, one by one, as each roller is manually installed on the rod body. This is cumbersome, labor-intensive, and labor-intensive, resulting in low production efficiency and high costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a paper feeding rod rubber wheel installation fixture, which can assist in assembling the driving roller, thereby improving production efficiency and reducing labor costs.

[0004] The present invention can adopt the following technical solutions:

[0005] A paper feeding rod rubber wheel installation fixture, comprising a propulsion structure, a claw plate structure, a pull-back structure, and a bottom plate;

[0006] The propulsion structure includes a propulsion cylinder, a propulsion slide, and an embedded cylinder. The propulsion cylinder is fixed to the base plate. The movable rod of the propulsion cylinder is connected to the propulsion slide. The propulsion slide is connected to the rear end of the embedded cylinder. A channel is provided in the embedded cylinder, and the channel runs from the rear end of the embedded cylinder to the front end of the embedded cylinder.

[0007] The claw disk structure includes a disk base plate and a plurality of claw fingers. The disk base plate has a plate hole in the middle. Each claw finger is composed of a horizontal portion and a vertical portion. The vertical portion and the horizontal portion are perpendicular to each other. The left end of the vertical portion and the horizontal portion are connected together. Each horizontal portion is sequentially surrounded by a cylindrical body. The disk base plate is provided with a corresponding slide groove at a position corresponding to each vertical portion. Each vertical portion is located in the corresponding slide groove. Each slide groove is evenly arranged around the center of the plate hole. Each vertical portion can slide in the corresponding slide groove in the diameter direction of the plate hole. A return spring is provided in each slide groove. One end of the return spring presses against the outer end of the corresponding vertical portion, and the other end of the return spring presses against the outer end of the slide groove.

[0008] The pull-back structure includes a pull-back cylinder, a pull-back slide, and a pull-back clamping ring. The pull-back cylinder is fixed to the base plate. The movable rod of the pull-back cylinder is connected to the pull-back slide. The pull-back slide is connected to the outer wall of the pull-back clamping ring. A clamping hole is provided in the middle of the pull-back clamping ring.

[0009] The propulsion structure is located on the left side of the claw disc structure, and the pullback structure is located on the right side of the claw disc structure;

[0010] The axis of the cylindrical body is coaxial with the axis of the clamping hole; the clamping hole is located on the outer periphery of the cylindrical body;

[0011] The front end of the embedded cylinder is tapered, or the inner surface of the left end of the horizontal portion is an arcuate surface, so that the diameter of the left end of the inner hole of the cylindrical body becomes smaller from left to right.

[0012] The diameter of the end surface of the front end of the insert is smaller than the entrance of the left end of the inner hole of the cylindrical body.

[0013] The present invention can further adopt the following improvement measures to solve the problem:

[0014] A further measure is: a first guide rail and a second guide rail are provided on the bottom plate, and the first guide rail and the second guide rail are placed in parallel.

[0015] A further measure is that a propulsion slider is provided on the first guide rail and the second guide rail respectively, and the propulsion slide is fixed on the propulsion slider.

[0016] A further measure is that a pull-back slider is provided on the first guide rail and the second guide rail respectively, and the pull-back slide is fixed on the pull-back slider.

[0017] Further measures are as follows: each chute is provided with a limiting piece at its inner end, and each vertical portion is provided with a limiting protrusion at its inner end.

[0018] Further measures are as follows: each slide groove is formed by the inner part of the disk body and the disk cover, the disk body is fixed on the disk base plate, and the disk cover is fixed on the disk body; there is a disk hole in the middle of the disk body, and there is a cover hole in the middle of the disk cover, and the axes of the plate hole, disk hole, and cover hole are on the same axis.

[0019] A further measure is that the propulsion cylinder is fixed to the base plate via a propulsion cylinder seat.

[0020] A further measure is that the pull-back cylinder is fixed to the base plate via a pull-back cylinder seat.

[0021] Further measures are: the number of claw fingers is 8 and the number of chutes is 8.

[0022] The above technical solution has the following technical effects:

[0023] 1. The present invention can automatically install the paper feed rod rubber wheel on the driving roller. Compared with the existing technology, the paper feed rod rubber wheel installation process can save labor, the installation can be automated, the operation is convenient, and labor-saving, which can improve production efficiency and reduce labor costs.

[0024] 2. The present invention has a simple structure and is easy to manufacture.

[0025] 3. The present invention utilizes a propulsion cylinder and a pullback cylinder, providing favorable conditions for realizing automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a schematic cross-sectional view of the present invention.

[0028] Figure 3 yes Figure 2 A partial enlarged schematic diagram.

[0029] Figure 4 It is a partial schematic diagram of the present invention when the cylindrical body is placed into the paper rod rubber wheel during use.

[0030] Figure 5 It is a partial schematic diagram of the present invention when it is used, after the paper rod rubber wheel is expanded by the cylindrical body, the driving roller is placed in the cylindrical body.

[0031] Figure 6 This is a partially exploded diagram of the drive roller and the paper feed rod rubber wheel.

[0032] Figure 7 This is a schematic diagram of the paper feed rod rubber wheel installed behind the drive roller. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to specific embodiments.

[0034] Example 1: Figures 1 to 7 As shown, a paper feeding rod rubber wheel installation fixture includes a propulsion structure, a claw plate structure, a pull-back structure, and a bottom plate 16.

[0035] The propulsion structure includes a propulsion cylinder 4, a propulsion slide 1, and an embedded cylinder 3. The propulsion cylinder 4 is fixed on the base plate 16. The movable rod of the propulsion cylinder is connected to the propulsion slide 1. The propulsion slide 1 is connected to the rear end of the embedded cylinder 3. The embedded cylinder is connected and fixed to the propulsion slide 1 by a fastener 2. A channel is provided in the embedded cylinder, and the channel extends from the rear end of the embedded cylinder to the front end of the embedded cylinder.

[0036] like Figure 3As shown, the claw disk structure includes a disk base plate 14 and multiple claw fingers 10. The disk base plate 14 has a plate hole 1401 in the center. Each claw finger 10 consists of a horizontal portion 101 and a vertical portion 102. The vertical portion and the horizontal portion are perpendicular to each other. The vertical portion 102 is connected to the left end of the horizontal portion 101. The horizontal portions are sequentially arranged to form a cylindrical body 103. The disk base plate is provided with corresponding slide grooves 104 at the corresponding positions of each vertical portion. Each vertical portion 102 is located within the corresponding slide groove 104. The slide grooves 104 are evenly arranged around the center of the plate hole. Each vertical portion can slide and move in the corresponding slide groove along the diameter of the plate hole. Each slide groove 1401 is provided with a return spring 13, one end of which presses against the outer end of the corresponding vertical portion, and the other end of the return spring presses against the outer end of the slide groove.

[0037] The pull-back structure includes a pull-back cylinder 7, a pull-back slide 9, and a pull-back clamp 11. The pull-back cylinder 7 is fixed on the base plate 16. The movable rod of the pull-back cylinder is connected to the pull-back slide 9. The pull-back slide is connected to the outer wall of the pull-back clamp. A clamping hole is provided in the middle of the pull-back clamp 11.

[0038] The propulsion structure is located on the left side of the claw disc structure, and the pullback structure is located on the right side of the claw disc structure.

[0039] The axis of the cylindrical body is coaxial with the axis of the clamping hole; the clamping hole is located on the outer periphery of the cylindrical body.

[0040] The front end of the insert 3 is tapered, or the inner surface of the left end of the horizontal portion is curved, so that the diameter of the left end of the inner hole of the cylindrical body gradually decreases from left to right. The diameter of the end surface of the front end of the insert 3 is smaller than the entrance of the left end of the inner hole 1031 of the cylindrical body.

[0041] The movable rod of the push cylinder causes the push slide to move to the right, and the embedded cylinder moves to the right, touching the inner surface of the left end of the inner hole of the cylindrical body, so that each claw moves outward along the diameter direction of the hole in the plate; when the movable rod of the pullback cylinder causes the pullback slide to move to the right, the card hole moves to the right around the outer periphery of the cylindrical body.

[0042] In this example, the number of claws is 8 and the number of chutes is 8. The number of claws can be determined according to design requirements. More than three claws will achieve better results.

[0043] Working principle: When in use, in the original position, under the action of the corresponding spring, the horizontal part of each claw finger forms a cylindrical body, and the cylindrical body is in the original state, such as Figure 4As shown, the paper feeding rod rubber wheel 200 is placed on the outer periphery of the cylindrical body, and then the embedded cylinder is pushed by the propulsion cylinder. The movable rod of the propulsion cylinder causes the push slide to move rightward, and the embedded cylinder moves rightward. The front end of the embedded cylinder 3 touches the inner surface of the left end of the inner hole of the cylindrical body, so that each claw moves outward along the diameter direction of the hole in the sliding plate, that is, the cylindrical body is stretched outward, and the inner ring of the paper feeding rod rubber wheel can be expanded. At this time, each vertical part moves outward along the corresponding slide groove; Figure 5 As shown, the drive roller 100 is passed through the inner hole of the cylindrical body, through the channel of the embedded cylinder, or first through the channel of the embedded cylinder and then through the inner hole of the cylindrical body. Then, the movable rod of the pull-back cylinder moves to the right. When the movable rod of the pull-back cylinder causes the pull-back slide to move to the right, the pull-back clamp ring slides to the right, and the clamping hole moves to the right around the outer periphery of the cylindrical body, touching the paper-feeding rod rubber wheel, causing the paper-feeding rod rubber wheel to slide out of the right end of the cylindrical body, and then the paper-feeding rod rubber wheel falls onto the drive roller, thus achieving the paper-feeding rod rubber wheel being tightly sleeved on the drive roller, and achieving the installation of one paper-feeding rod rubber wheel on the drive roller. In this way, the next paper-feeding rod rubber wheel can be installed. The installation process can save labor, the installation can be automated, the operation is convenient, and labor-saving, which can improve production efficiency and reduce labor costs.

[0044] Example 2: This example is characterized in that each chute 104 has a stopper 105 at its inner end, and each vertical portion has a stopper protrusion 106 at its inner end to prevent the vertical portion from sliding out of the chute. The rest is the same as Example 1.

[0045] Example 3: The characteristic of this example is that a first guide rail 8 and a second guide rail 81 are provided on the bottom plate, and the first guide rail 8 and the second guide rail 81 are placed in parallel.

[0046] A propulsion slider 6 is provided on the first guide rail and the second guide rail respectively, and a propulsion slide is fixed on the propulsion slider.

[0047] The first and second guide rails are each provided with a pullback slider 61, and the pullback slide is fixed to the pullback slider. The push slider and the pullback slider share the first and second guide rails, which makes the structure simpler and the motion trajectory more precise. The simple structure is easy to manufacture.

[0048] The rest is the same as Example 1 and Example 2.

[0049] Example 4: This example features chute grooves formed within the disc body 121 and the disc cover 12. The disc body is fixed to the disc base, and the disc cover is fixed to the disc body 121. The disc body has a central disc hole, and the disc cover has a central cover hole. The axes of the plate hole, disc hole, and cover hole are aligned. A cylindrical body extends from the disc hole, passes through the central hole 1401, and is secured to the disc base via fasteners 15. A stopper 105 is fixed to the disc body 121. The assembly structure is simple and installation is easy. The remaining steps are the same as those of the previous examples.

[0050] Embodiment 5: The characteristic of this embodiment is that the propulsion cylinder is fixed to the base plate via the propulsion cylinder seat 5. The pull-back cylinder 7 is fixed to the base plate via the pull-back cylinder seat.

[0051] The rest is the same as the above embodiments.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paper feed rod rubber wheel installation fixture, characterized by: It includes a propulsion structure, a claw plate structure, a pullback structure, and a bottom plate; The propulsion structure includes a propulsion cylinder, a propulsion slide, and an embedded cylinder. The propulsion cylinder is fixed to the base plate. The movable rod of the propulsion cylinder is connected to the propulsion slide. The propulsion slide is connected to the rear end of the embedded cylinder. A channel is provided in the embedded cylinder, and the channel runs from the rear end of the embedded cylinder to the front end of the embedded cylinder. The claw disk structure includes a disk base plate and a plurality of claw fingers. The disk base plate has a plate hole in the middle. Each claw finger is composed of a horizontal portion and a vertical portion. The vertical portion and the horizontal portion are perpendicular to each other. The left end of the vertical portion and the horizontal portion are connected together. Each horizontal portion is sequentially surrounded by a cylindrical body. The disk base plate is provided with a corresponding slide groove at a position corresponding to each vertical portion. Each vertical portion is located in the corresponding slide groove. Each slide groove is evenly arranged around the center of the plate hole. Each vertical portion can slide in the corresponding slide groove in the diameter direction of the plate hole. A return spring is provided in each slide groove. One end of the return spring presses against the outer end of the corresponding vertical portion, and the other end of the return spring presses against the outer end of the slide groove. The pull-back structure includes a pull-back cylinder, a pull-back slide, and a pull-back clamping ring. The pull-back cylinder is fixed to the base plate. The movable rod of the pull-back cylinder is connected to the pull-back slide. The pull-back slide is connected to the outer wall of the pull-back clamping ring. A clamping hole is provided in the middle of the pull-back clamping ring. The propulsion structure is located on the left side of the claw disc structure, and the pullback structure is located on the right side of the claw disc structure; The axis of the cylindrical body is coaxial with the axis of the clamping hole; the clamping hole is located on the outer periphery of the cylindrical body; The front end of the embedded cylinder is tapered, or the inner surface of the left end of the horizontal portion is an arc-shaped surface, so that the diameter of the left end of the inner hole of the cylindrical body becomes smaller from left to right; The diameter of the end surface of the front end of the insert is smaller than the entrance of the left end of the inner hole of the cylindrical body.

2. The paper feed rod rubber wheel mounting fixture according to claim 1, characterized in that: The bottom plate is provided with a first guide rail and a second guide rail, and the first guide rail and the second guide rail are placed in parallel.

3. The paper feed rod rubber wheel mounting fixture according to claim 2, characterized in that: A propulsion slider is provided on the first guide rail and the second guide rail respectively, and a propulsion slide is fixed on the propulsion slider.

4. The paper feed rod rubber wheel mounting fixture according to claim 2, characterized in that: A pull-back slider is provided on the first guide rail and the second guide rail respectively, and the pull-back slide is fixed on the pull-back slider.

5. The paper feed rod rubber wheel mounting fixture according to claim 1, characterized in that: The inner end of each chute is provided with a limiting piece, and the inner end of each vertical portion is provided with a limiting protrusion.

6. The paper feed rod rubber wheel mounting fixture according to claim 1, characterized in that: Each slide groove is formed by the inside of the disk body and the disk cover. The disk body is fixed on the disk base plate, and the disk cover is fixed on the disk body. There is a disk hole in the middle of the disk body, and there is a cover hole in the middle of the disk cover. The axes of the plate hole, disk hole, and cover hole are on the same axis.

7. The paper feed rod rubber wheel mounting fixture according to claim 1, characterized in that: The propulsion cylinder is fixed on the base plate through the propulsion cylinder seat.

8. The paper feed rod rubber wheel mounting fixture according to claim 1, characterized in that: The pull-back cylinder is fixed to the base plate through a pull-back cylinder seat.

9. The paper feed rod rubber wheel mounting fixture according to claim 1, characterized in that: The number of claw fingers is 8 and the number of chutes is 8.

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