Needle bed base polishing tool

Abstract

The utility model discloses a grinding tool for a needle bed base. The grinding tool for the needle bed base comprises a linear air cylinder, an air cylinder support and a grinding frame. The number of the air cylinder supports is two, the two air cylinder supports are fixed to the two ends of the needle bed base respectively, the linear air cylinder is installed between the two air cylinder supports, and the length of the linear air cylinder is larger than that of the needle bed base; the grinding frame is connected with the power output end of the linear air cylinder and can be driven by the linear air cylinder to reciprocate in the direction determined by the linear air cylinder, two C-shaped grinding blocks are symmetrically installed on the grinding frame and connected to guide rails on the two sides of the needle bed base in a clamped mode respectively, and the two C-shaped grinding blocks are connected with the linear air cylinder in a clamped mode. The inner sides of the C-shaped grinding blocks are grinding faces, and grinding materials are installed between the grinding faces and the surfaces of the corresponding guide rails. By means of the mode, the guide rail grinding device can replace manual work to complete the guide rail grinding action, efficiency is high, the effect is good, and the labor intensity of field personnel is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the field of grinding tools, in particular to a grinding tool for a needle bed base. Background Art

[0002] When the computerized flat knitting machine is in operation, the head bearing will reciprocate on the guide rail, so the machining surface roughness of the guide rail on the needle bed base must be within Ra1.6. The better the roughness, the less noise during operation. However, due to the insufficient rigidity of the needle bed base itself and the wear of the milling cutter blade, vibration will occur during the machining of the guide rail, resulting in uneven knife marks on the guide rail surface and poor roughness. Therefore, after the machining is completed, a guide rail grinding process will be added. The existing grinding process is manual grinding. First, use 80-mesh coarse sandpaper to grind back and forth on the surface of the guide rail until the arc-shaped knife marks on the surface of the guide rail are all turned into straight lines, and then use 120-mesh fine sandpaper for fine grinding to make the straight lines uniform and delicate. This method is time-consuming and labor-intensive, the overall grinding is uneven, and the labor cost is extremely high. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a grinding tool which can replace manual grinding of the guide rails on the needle bed base and improve the work efficiency.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a needle bed base grinding tool, the needle bed base grinding tool is used for grinding the guide rails on both sides of the needle bed base, and the needle bed base grinding tool comprises: a linear cylinder, a cylinder bracket and a grinding frame; there are two cylinder brackets, which are respectively fixed at both ends of the needle bed base, and the linear cylinder is installed between the two cylinder brackets, and the length of the linear cylinder is greater than the length of the needle bed base; the grinding frame is connected to the power output end of the linear cylinder, and can reciprocate along the direction determined by the linear cylinder under the drive of the linear cylinder, and two C-shaped grinding blocks are symmetrically installed on the grinding frame, and the two C-shaped grinding blocks are respectively clamped on the guide rails on both sides of the needle bed base, and the inner side of the C-shaped grinding block is a grinding surface, and grinding material is installed between the grinding surface and the corresponding guide rail surface.

[0005] In a preferred embodiment of the utility model, the grinding frame also includes an outer frame, a push plate, a driving block and an extension arm. The outer frame is a semi-enclosed frame structure. The push plate is fixedly mounted at the opening of the outer frame, and forms a closed square frame structure with the outer frame and is sleeved on the cylinder body of the linear cylinder. One side of the driving block is fixed to the push plate, and the other side is connected to the power output mechanism of the linear cylinder. The extension arm is symmetrically arranged along the contour of the needle plate base, and the C-shaped grinding block is installed on the top of the extension arm. The extension arm includes an upper arm frame, a lower arm frame and an arm plate. One end of the upper arm frame is fixed below the outer frame, and the other end is connected to the arm plate. One end of the lower arm frame is connected to the arm plate, and the other end is connected to the C-shaped grinding block.

[0006] In a preferred embodiment of the present invention, an inner clamping block is also installed inside the C-shaped grinding block.

[0007] In a preferred embodiment of the utility model, the cylinder bracket includes an end connecting plate, a horizontal support plate and a positioning pin, the end connecting plate is fixed to the end of the cylinder, the bottom of the end connecting plate is connected to the horizontal support plate, the positioning pin is installed on the back of the horizontal support plate, and the position of the positioning pin matches the position of the mounting hole reserved on the base end of the needle bed base.

[0008] In a preferred embodiment of the utility model, a pressure plate is also installed on the grinding surface, and a pressure adjustment spring and a corresponding adjustment screw are installed between the pressure plate and the grinding surface, and the elastic force of the adjustment spring can be adjusted by the adjustment screw. Velcro is attached to the plate surface of the pressure plate.

[0009] The beneficial effects of the utility model are as follows: the utility model is a special guide rail grinding tool designed according to the shape characteristics of the needle bed base. It can drive the grinding mechanism to move back and forth in a straight line through the cylinder to complete the grinding action of the guide rail position. The force applied during the whole process is uniform and stable. Compared with manual grinding, it is not only efficient, but also has good surface quality of the finished product. It avoids repeated tedious and laborious manual actions, and significantly reduces the labor intensity of on-site personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the utility model;

[0011] Figure 2 is a schematic diagram of the three-dimensional structure of the embodiment shown with the needle plate base removed;

[0012] Figure 3 yes Figure 2 A magnified schematic diagram of the local structure of the middle hook position;

[0013] The markings of the components in the accompanying drawings are as follows:

[0014] 1. Needle bed base, 2. Linear cylinder, 3. Grinding frame, 4. Cylinder bracket;

[0015] 101. base end, 102. guide rail;

[0016] 301. outer frame, 302. push plate, 303. driving block, 304. C-shaped grinding block, 305. arm plate, 306. upper arm frame, 307. lower arm frame, 308. inner clamping block, 309. pressure plate;

[0017] 401. End connecting plate, 402. Horizontal supporting plate, 403. Positioning pin. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] See also Figure 1 , Figure 2 and Figure 3 , the utility model embodiment includes:

[0020] A needle bed base grinding tool, the needle bed base grinding tool is used for grinding the guide rails 102 on both sides of the needle bed base 1, and the needle bed base grinding tool comprises: a linear cylinder 2, a cylinder bracket 4 and a grinding frame 3;

[0021] There are two cylinder brackets 4, which are respectively fixed at both ends of the needle bed base 4. The linear cylinder 2 is installed between the two cylinder brackets 4. The length of the linear cylinder 2 is greater than the length of the needle bed base 1. The grinding frame 3 is connected to the power output end of the linear cylinder 2, and can reciprocate in the direction determined by the linear cylinder 2 under the drive of the linear cylinder 2. Two C-shaped grinding blocks 304 are symmetrically installed on the grinding frame 3. The two C-shaped grinding blocks 304 are respectively clamped on the guide rails 102 on both sides of the needle bed base 1. The inner side of the C-shaped grinding block 304 is a grinding surface, and grinding emery cloth is installed between the grinding surface and the corresponding guide rail 102 surface.

[0022] The grinding frame 3 also includes an outer frame 301, a push plate 302, a driving block 303 and an extension arm. The outer frame 301 is a semi-enclosed frame structure. The push plate 302 is fixedly mounted at the opening of the outer frame 301, and the outer frame 301 forms a closed frame structure and is sleeved on the cylinder body of the linear cylinder 2. One side of the driving block 303 is fixed on the push plate 302, and the other side is connected to the power output mechanism of the linear cylinder 2. The extension arm is symmetrically arranged along the contour of the needle plate base 1, and the C-shaped grinding block 304 is installed at the top of the extension arm. Through this structure, in actual work, the linear cylinder 2 can drive the entire grinding frame 3 to reciprocate linearly through the power output mechanism, thereby driving the two C-shaped grinding blocks 304 to reciprocate and grind on the guide rail 102 to complete the grinding action, and the outer frame 301 can wrap the linear cylinder 2 together with the push plate 302 to prevent the driving block 303 from being out of contact with the power output end of the linear cylinder 2 during the movement.

[0023] The extension arm includes an upper arm frame 306, a lower arm frame 307 and an arm plate 305. One end of the upper arm frame 306 is fixed below the outer frame 301, and the other end is connected to the arm plate 305. One end of the lower arm frame 307 is connected to the arm plate 305, and the other end is connected to the C-shaped grinding block 304. The reason why the extension arm adopts a three-stage connection structure is that the end position of the extension arm is subjected to a relatively large force due to torque during the actual grinding process, and it is reciprocating force, so it is easy to be damaged. If the three-stage connection structure is used, if damage occurs, only the damaged position of the front end needs to be replaced to prevent affecting the rest of the extension arm. In addition, the three-stage connection structure has good elasticity, which can buffer the impact of violent reciprocating motion and further improve the overall service life.

[0024] The inner side of the C-shaped grinding block 304 is also provided with an inner block 308. The inner block 308 can be used to clamp the guide rail 102 when the C-shaped grinding block 304 is installed, thereby preventing the guide rail surface from being out of contact with the inner side surface of the C-shaped grinding block 304 due to rapid movement of the C-shaped grinding block 304, thereby reducing the grinding effect.

[0025] The cylinder bracket 4 includes an end connection plate 401, a horizontal support plate 402 and a positioning pin 403. The end connection plate 401 is fixed to the end of the linear cylinder 1. The bottom of the end connection plate 401 is connected to the horizontal support plate 402. The positioning pin 403 is installed on the back of the horizontal support plate 402. The position of the positioning pin 403 matches the position of the mounting hole reserved on the base end 101 of the needle bed base 1. In this way, when installing the cylinder bracket 4, it is only necessary to insert the positioning pin 403 into the mounting hole on the base end 101 to quickly fix the cylinder bracket 4 and complete the installation of the linear cylinder 2. It is also convenient to remove after grinding.

[0026] A pressure plate 309 is also installed on the grinding surface, and a pressure adjustment spring and a corresponding adjustment screw are installed between the pressure plate 309 and the grinding surface, and the elastic force of the adjustment spring can be adjusted by the adjustment screw. Velcro is attached to the surface of the pressure plate 309. The advantage of placing the pressure plate 309 on the grinding surface and attaching Velcro on the surface is that the pressure between the pressure plate 309 and the surface of the guide rail 102 can be adjusted by the pressure adjustment screw, thereby improving the grinding efficiency. In addition, the Velcro attached to the pressure plate 309 can be attached to the pressure plate 309 with flocked sandpaper for grinding. After the sandpaper fails, it can be directly torn off and re-attached with new flocked sandpaper, which is quick and convenient to replace.

[0027] In actual use, the utility model first adjusts the entire grinding frame 3 to the end position of one end of the linear cylinder 2, and then aligns the positioning pin 403 on the bottom surface of the entire horizontal support plate 402 with the mounting hole on the base end 101, and uses the length difference between the linear cylinder 2 and the needle bed base 1 to make the C-shaped grinding block 304 at the end of the extension arm of the grinding frame 3 just located at the outer position of the end of the guide rail 102, and then attaches the flocked gauze to the surface of the pressure plate 309 and puts the C-shaped grinding block 304 on the guide rail 102 of the needle bed base, and then starts the linear cylinder 2, and uses the linear cylinder 2 to drive the entire C-shaped grinding block 304 to reciprocate to complete the grinding action. This grinding method has uniform force and can meet the friction requirements of the guide surface. Compared with manual grinding, it is not only efficient, but also effective, avoiding repeated tedious and laborious manual actions, and significantly reducing the labor intensity of on-site personnel.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A needle bed base grinding tool, which is used for grinding the guide rails on both sides of the needle bed base, characterized in that: The needle bed base grinding tooling comprises: a linear cylinder, a cylinder bracket and a grinding frame; There are two cylinder brackets, which are respectively fixed at the two ends of the needle bed base. The linear cylinder is installed between the two cylinder brackets, and the length of the linear cylinder is greater than the length of the needle bed base. The grinding frame is connected to the power output end of the linear cylinder and can reciprocate along the direction determined by the linear cylinder under the drive of the linear cylinder. Two C-shaped grinding blocks are symmetrically installed on the grinding frame. The two C-shaped grinding blocks are respectively clamped on the guide rails on both sides of the needle bed base. The inner side of the C-shaped grinding block is a grinding surface, and a grinding material is installed between the grinding surface and the corresponding guide rail surface.

2. The needle bed base grinding tool according to claim 1, characterized in that: The grinding frame also includes an outer frame, a push plate, a driving block and an extension arm. The outer frame is a semi-enclosed frame structure. The push plate is fixedly installed at the opening of the outer frame to form a closed square frame structure with the outer frame and is sleeved on the cylinder body of the linear cylinder. One side of the driving block is fixed to the push plate, and the other side is connected to the power output mechanism of the linear cylinder. The extension arm is symmetrically arranged along the contour of the needle plate base, and the C-shaped grinding block is installed on the top of the extension arm.

3. The needle bed base grinding tool according to claim 2, characterized in that: The extension arm includes an upper arm frame, a lower arm frame and an arm plate. One end of the upper arm frame is fixed below the outer frame, and the other end is connected to the arm plate. One end of the lower arm frame is connected to the arm plate, and the other end is connected to the C-shaped grinding block.

4. The needle bed base grinding tool according to claim 1, characterized in that: An inner clamping block is also arranged inside the C-shaped grinding block.

5. The needle bed base grinding tool according to claim 1, characterized in that: The cylinder bracket includes an end connecting plate, a horizontal support plate and a positioning pin. The end connecting plate is fixed to the end of the cylinder, the bottom of the end connecting plate is connected to the horizontal support plate, and the positioning pin is installed on the back of the horizontal support plate. The position of the positioning pin matches the position of the mounting hole reserved on the base end of the needle bed base.

6. The needle bed base grinding tool according to claim 1, characterized in that: A pressure plate is also installed on the grinding surface, and a pressure adjusting spring and a corresponding adjusting screw are installed between the pressure plate and the grinding surface. The elastic force of the adjusting spring can be adjusted by the adjusting screw.

7. The needle bed base grinding tool according to claim 6, characterized in that: Velcro is attached to the plate surface of the pressure plate.

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