Cover plate head of movable cover plate

Abstract

The utility model discloses a cover plate head of a movable cover plate, which comprises a base, a heel and toe and a connecting shaft, one end of the base is used for being detachably connected and matched with the end part of a framework of the movable cover plate, and one end of the connecting shaft is used for being fixedly matched with the end part of the framework of the movable cover plate. The other end of the connecting shaft is matched with the base in an inserting mode, the base is provided with an installation groove matched with the heel and toe, and the other end of the connecting shaft is arranged in the installation groove in a penetrating mode and matched with the heel and toe in a positioning mode. According to the cover plate head of the movable cover plate, the heel and toe can be conveniently disassembled and assembled, and the movable cover plate can be conveniently maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of carding machines, and particularly relates to a flat top for a movable flat of a carding machine. Background Art

[0002] The movable flat of a carding machine is one of the very important components on a carding machine. Its main purpose is to cooperate with the cylinder (the main component of the carding machine) to further finely card the fibers. Through the card clothing covered on the movable flat, the fibers can be fully straightened and separated, and part of the short fibers and fine impurities can be removed to achieve uniform mixing of the fibers. The carding quality of the movable flat directly affects the quality of the web formation and drawing.

[0003] The movable flat usually includes a skeleton and cylindrical pins fixedly arranged at both ends of the skeleton. The cylindrical pins serve as the heel-toe heads and are used to contact and cooperate with the supporting curved rail of the carding machine. The heel-toe heads formed by the cylindrical pins are in line contact with the supporting curved rail at the beginning of use, but after long-term use, due to wear of the cylindrical pins, it will gradually become surface contact, affecting the working accuracy of the movable flat. Once there is significant wear, the worn cylindrical pins need to be replaced. However, the cylindrical pins are usually firmly bonded to the aluminum skeleton with glue, which is not easy to disassemble, the operation is rather troublesome, and the maintenance cost is relatively high. Summary of the Invention

[0004] In order to solve the above problems, the utility model provides a flat top for a movable flat, which can facilitate the disassembly and assembly of the heel-toe head and facilitate the maintenance of the movable flat.

[0005] The flat top of the movable flat of the utility model includes a base, a heel-toe head and a connecting shaft. One end of the base is used for detachably connecting and cooperating with the end of the skeleton of the movable flat. One end of the connecting shaft is used for fixedly cooperating with the end of the skeleton of the movable flat. The other end of the connecting shaft is in plug-in cooperation with the base. An installation groove for cooperating with the heel-toe head is arranged on the base. The other end of the connecting shaft passes through the installation groove and is in positioning cooperation with the heel-toe head. When the base is disassembled and separated from the end of the skeleton of the movable flat, the other end of the connecting shaft will also be disengaged from the base, and at the same time, the positioning of the heel-toe head can be released, facilitating the disassembly and replacement of the heel-toe head.

[0006] Further, the axis of the heel-toe head includes a connection hole that forms a plug-in fit with the other end of the connection shaft. The installation groove has two oppositely arranged side walls in the direction of the penetration of the connection shaft. The two axial ends of the heel-toe head respectively form a limit fit with the two side walls of the installation groove to limit the axial movement of the heel-toe head. When the other end of the connection shaft is inserted into the connection hole of the heel-toe head, it can also limit the radial movement of the heel-toe head. An anti-rotation structure that prohibits the heel-toe head from rotating is formed between the heel-toe head and the connection shaft or between the heel-toe head and the base, which can prevent the heel-toe head from rotating, thereby forming a reliable positioning of the heel-toe head and maintaining a stable contact fit between the local part of the heel-toe head and the supporting curved rail of the carding machine. The installation groove is provided with a bottom opening at the bottom of the base for a local part of the heel-toe head to extend downward.

[0007] Further, the anti-rotation structure includes a positioning protrusion and a positioning groove respectively arranged on the side wall and the end of the heel-toe head. At least one group of corresponding side wall and the end of the heel-toe head form an anti-rotation fit through the positioning protrusion and the positioning groove, so that the heel-toe head will not rotate when it is installed in the installation groove, and the disassembly and assembly of this anti-rotation structure are very convenient.

[0008] Further, there are multiple positioning grooves on the end of the heel-toe head and they are axially distributed along the axis of the heel-toe head. Therefore, the heel-toe head can be positioned when it rotates to different positions. This means that when a local part of the heel-toe head is worn, there is no need to replace the new heel-toe head. The unworn part of the heel-toe head can be turned downward by rotation to cooperate with the curved rail for sliding. Such a design can reduce the replacement cost of the heel-toe head.

[0009] Preferably, the heel-toe head has a circular outer peripheral surface, which is convenient for the production and processing of the heel-toe head, can achieve line contact with the curved rail, and can also facilitate the rotation operation of the heel-toe head.

[0010] As another alternative solution, the heel-toe head has a regular polygon outer peripheral surface, and the adjacent planes of the outer peripheral surface are connected by an arc surface for contact and cooperation with the curved rail.

[0011] Further, the two side walls of the installation groove form a plug-in fit with the other end of the connection shaft, improving the positioning effect of the connection shaft and preventing the other end of the connection shaft and the heel-toe head from shaking.

[0012] Further, the installation groove is provided with a side opening and a top opening on the side and top of the base respectively. The design of the side opening and the top opening can, on the one hand, facilitate the insertion and installation of the heel-toe head from the side and top directions, and on the other hand, can also play a role of making way, reducing the size of the installation groove and making the overall structure of the cover head more compact.

[0013] Furthermore, one end of the base is provided with a card joint for detachably plugging and mating with the end of the skeleton of the movable cover plate. The plugging of the card joint of the base and the skeleton of the movable cover plate, as well as the plugging of the other end of the connecting shaft and the base, are all in the same direction. When pulling out the card joint of the base from the skeleton, the other end of the connecting shaft will also be pulled out from the base, making the disassembly and assembly operations more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a usage state diagram of an embodiment of the present invention;

[0015] Figure 2 is a top view of an embodiment of the present invention;

[0016] Figure 3 is a structural diagram of the base of an embodiment of the present invention;

[0017] Figure 4 is a side view of an embodiment of the present invention;

[0018] Figure 5 is a structural diagram of one end of the heel-toe head of an embodiment of the present invention;

[0019] Figure 6 is a structural diagram of one end of the heel-toe head of other embodiments of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] An embodiment of the cover head of the movable cover plate of the present invention, as Figures 1-5 shown, includes a base 1, a heel-toe head 2, and a connecting shaft 3. One end of the base 1 is used for detachably connecting and mating with the end of the skeleton 4 of the movable cover plate. One end of the connecting shaft 3 is used for fixedly mating with the end of the skeleton 4 of the movable cover plate, for example, being plugged and fixed in the mounting hole at the end of the skeleton 4 and reinforced with glue. The other end of the connecting shaft 3 and the base 1 form a plugging fit. The two sides of the base 1 are symmetrically provided with mounting grooves 10, and the mounting grooves 10 are used for mating and installing with the heel-toe head 2. The other end of the connecting shaft 3 passes through the mounting grooves 10 and forms a positioning fit with the heel-toe head 2. When disassembling and separating the base 1 from the end of the skeleton 4 of the movable cover plate, the other end of the connecting shaft 3 will also be disengaged from the base 1, and at the same time, the positioning of the heel-toe head 2 can be released, so that the heel-toe head 2 can be taken out from the mounting grooves 10, facilitating the disassembly and replacement of the heel-toe head 2.

[0021] The axis of the heel-toe head 2 includes a connection hole 20 that forms a plug-in fit with the other end of the connection shaft 3. The installation groove 10 has two opposite side walls 11 in the direction of the penetration of the connection shaft 3. The two axial ends of the heel-toe head 2 respectively form a limit fit with the two side walls 11 of the installation groove 10 to limit the axial movement of the heel-toe head 2. When the other end of the connection shaft 3 penetrates into the connection hole 20 of the heel-toe head 2, it can also limit the radial movement of the heel-toe head 2. An anti-rotation structure that prohibits the heel-toe head 2 from rotating is formed between the heel-toe head 2 and the base 1, which can prevent the heel-toe head 2 from rotating, thereby forming a reliable positioning of the heel-toe head 2 and maintaining a stable contact fit between the local part of the heel-toe head 2 and the supporting curved rail of the carding machine. The installation groove 10 is provided with a bottom opening 101 at the bottom of the base 1 for a local part of the heel-toe head 2 to extend downward relative to the bottom surface of the base 1.

[0022] As Figure 2 , 3 shown, in this embodiment, the anti-rotation structure includes a positioning protrusion 12 and a positioning groove 21 respectively provided on the side wall 11 and the end of the heel-toe head 2. An anti-rotation fit is formed between a set of corresponding side wall 11 and the end of the heel-toe head 2 through the positioning protrusion 12 and the positioning groove 21, so that the heel-toe head 2 will not rotate when it is installed in the installation groove 10, and the disassembly and assembly of this anti-rotation structure are very convenient. In other embodiments, positioning protrusions 12 and positioning grooves 21 can also be provided between the two side walls 11 and the two ends of the heel-toe head 2, which can further improve the positioning effect of the heel-toe head 2.

[0023] In other embodiments, an anti-rotation structure can also be provided at the plug-in connection between the heel-toe head 2 and the connection shaft 3, for example, by using a non-circular connection shaft 3 and a non-circular connection hole 20 of the heel-toe head 2 for plugging.

[0024] The positioning grooves 21 on the end of the heel-toe head 2 are multiple and are axially distributed along the axis of the heel-toe head 2, so that the heel-toe head 2 can be positioned when it rotates to different positions. This makes it unnecessary to replace the new heel-toe head 2 when a local part of the heel-toe head 2 is worn. The unworn part of the heel-toe head 2 can be turned downward to cooperate with the curved rail for sliding, and such a design can reduce the replacement cost of the heel-toe head 2.

[0025] In this embodiment, as Figure 5 shown, the heel-toe head 2 has a circular outer peripheral surface, which is convenient for the production and processing of the heel-toe head 2, can achieve line contact with the curved rail, and can also facilitate the rotation operation of the heel-toe head 2.

[0026] In other embodiments, as Figure 6As shown, the heel-toe head 2 has an outer peripheral surface of a regular polygon, and the adjacent planes of the outer peripheral surface are connected by an arc surface 22 in a transitional manner. The central position of each arc surface 22 is equidistant from the axis of the heel-toe head 2, and the arc surface 22 is used for contact and cooperation with the curved rail.

[0027] The two side walls 11 of the mounting groove 10 and the other end of the connecting shaft 3 are both in plug-in fit, improving the positioning effect of the connecting shaft 3, so that the end of the other end of the connecting shaft 3 and the heel-toe head 2 will not shake.

[0028] The mounting groove 10 is also provided with a side opening 102 and a top opening 103 on the side and top of the base 1 respectively. The design of the side opening 102 and the top opening 103 can, on the one hand, facilitate the insertion and installation of the heel-toe head 2 from the side and top directions, and on the other hand, can also play a role in making way, reducing the size of the mounting groove 10 and making the overall structure of the cover plate head more compact.

[0029] One end of the base 1 is provided with a card joint 13 for forming a detachable plug-in fit with the mounting hole at the end of the skeleton 4 of the movable cover plate. The plug-in of the card joint 13 of the base 1 and the skeleton 4 of the movable cover plate and the plug-in of the other end of the connecting shaft 3 and the base 1 are in the same direction. When the card joint 13 of the base 1 is pulled out from the skeleton 4, the other end of the connecting shaft 3 will also be pulled out from the base 1, making the disassembly and assembly operation more convenient.

[0030] The above embodiments are only one of the preferred specific embodiments of the present invention, and the common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. A cover head of a movable cover, comprising a base, a heel and a toe, and a connecting shaft, characterized in that: One end of the base is used to form a detachable connection with the end of the frame of the movable cover plate, one end of the connecting shaft is used to form a fixed fit with the end of the frame of the movable cover plate, the other end of the connecting shaft is plug-in fit with the base, and the base is provided with a mounting groove for mounting with the heel-toe, the other end of the connecting shaft is inserted into the mounting groove and forms a positioning fit with the heel-toe.

2. The cover head of the movable cover according to claim 1, characterized in that: The axis of the heel-toe includes a connecting hole that is plug-fitted with the other end of the connecting shaft. The mounting groove has two oppositely arranged side walls in the direction of penetration of the corresponding connecting shaft. The axial ends of the heel-toe respectively form a limiting fit with the two side walls of the mounting groove. An anti-rotation structure that prohibits the heel-toe from rotating is formed between the heel-toe and the connecting shaft or the heel-toe and the base. The mounting groove is provided with a bottom opening at the bottom of the base for partially extending the heel-toe downward.

3. The cover head of the movable cover according to claim 2, characterized in that: The anti-rotation structure includes a positioning protrusion and a positioning groove respectively arranged on the end of the side wall and the heel-toe.

4. The cover head of the movable cover according to claim 3, characterized in that: There are a plurality of positioning grooves on the end of the heel-toe portion and the positioning grooves are axially distributed along the axis of the heel-toe portion.

5. The cover head of the movable cover according to claim 4, characterized in that: The heel-toe has a circular outer peripheral surface.

6. The cover head of the movable cover according to claim 4, characterized in that: The heel-toe head has a regular polygonal outer peripheral surface, and adjacent planes of the outer peripheral surface are connected by arc transitions.

7. The cover head of the movable cover according to claim 2, characterized in that: The two side walls of the mounting groove form a plug-in fit with the other end of the connecting shaft.

8. The cover head of the movable cover according to claim 2, characterized in that: The mounting groove is respectively provided with a side opening and a top opening on the side and top of the base.

9. The cover head of the movable cover according to claim 1, characterized in that: One end of the base is provided with a card joint for forming a detachable plug-in fit with the end of the frame of the movable cover. The plug-in of the card joint of the base and the frame of the movable cover and the plug-in of the other end of the connecting shaft and the base are all located in the same direction.

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