A knitting machine cam plate connecting structure

Abstract

The utility model relates to a kind of knitting equipment, especially a kind of knitting circular knitting machine cam seat connecting structure, including support base plate, cam seat, sliding block and top plate, the lower end of the cam seat is fixedly connected on the support base plate, and the upper end is fixedly connected on the top plate, strip hole is opened in the cam seat, and the cam seat is fixedly connected or integrally connected with support respectively, threaded through hole is opened in each support, adjusting bolt is spirally connected on each threaded through hole, the support base plate and the top plate are fixedly connected with slide bar, the sliding block is slidably connected on the slide bar, adjusting plate is fixedly connected or integrally connected on the sliding block, and the end of each adjusting bolt is respectively abutted on the adjusting plate. By setting slide bar between support base plate and top plate, replace the slide rail on traditional cam seat, processing cost is relatively lower, by setting strip hole and adjusting plate, replace traditional conical adjusting mouth, cam adjustment stability is relatively higher.

Description

Technical Field

[0001] This utility model relates to a knitting device, and more particularly to a connecting structure for a triangular seat of a circular knitting machine. Background Technology

[0002] The cam set of a circular knitting machine is an important component used to install the knitting cams. As a crucial component for controlling the movement trajectory of the knitting needles, the installation accuracy of the knitting cams directly affects the working stability of the circular knitting machine and the quality of the fabric.

[0003] In existing circular knitting machines, the cam seat is usually bolted to the support base plate of the machine. A slider is vertically slidably connected to the cam seat, and the knitting cam is mounted on the slider. This connection structure requires relatively high machining and installation accuracy of the cam seat. Since the cam seat is an irregularly shaped part, its machining cost is relatively high.

[0004] Furthermore, in existing circular knitting machines, the vertical position of the knitting triangle is adjusted by adjusting the vertical position of the slider. The adjustment of the slider's vertical position is usually achieved by the cooperation between the conical end of the adjusting bolt and the conical adjusting port, such as the slider adjustment structure of the large circular knitting machine triangle seat disclosed in Chinese utility model patent with authorization announcement number CN 202047205 U. Since the contact between the conical end of the adjusting bolt and the conical adjusting port is a line contact, the contact area is small, the stability is relatively poor, and the slider will exert a horizontal pushing force during adjustment, which affects the smoothness of the slider's sliding and is also prone to wear.

[0005] In view of this, the applicant has conducted in-depth research on the connection structure of the cam seat of a circular knitting machine, which led to this case. Utility Model Content

[0006] The purpose of this utility model is to provide a knitting circular machine triangle seat connection structure with relatively low processing cost and relatively high triangle adjustment stability.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A connecting structure for a cam seat on a circular knitting machine includes a support base plate, a cam seat, a slider, and a top plate. The lower end of the cam seat is fixedly connected to the support base plate, and the upper end is fixedly connected to the top plate. The cam seat has a horizontally penetrating slot. Supports are fixedly or integrally connected to the cam seat at positions above and below the slot. Each support has a vertically arranged threaded through hole, and an adjusting bolt is screwed into each threaded through hole. A vertically arranged slide rod is fixedly connected between the support base plate and the top plate. The slider is slidably connected to the slide rod and is located on the side of the cam seat away from each support. An adjusting plate is fixedly or integrally connected to the slider and movably inserted into the slot. One end of each adjusting bolt abuts against the adjusting plate.

[0008] As an improvement of this utility model, the adjusting bolt is an internal hexagonal adjusting bolt.

[0009] As an improvement of this utility model, the end of the adjusting bolt away from the adjusting plate has a nut, and each adjusting bolt is fitted with a first spring. One end of each first spring abuts against the corresponding nut, and the other end abuts against the corresponding support.

[0010] As an improvement of this utility model, the slide rod is respectively fitted with a second spring at the positions located on the upper and lower sides of the slider, one end of the second spring abuts against the slider, and the other end abuts against the support base plate or the top plate.

[0011] As an improvement of this utility model, a positioning ring is fixedly or integrally connected to the support base plate, a first positioning groove is provided on the positioning ring, a second positioning groove is provided at the lower end of the triangular seat, a positioning block is fixedly connected in the second positioning groove, and the positioning block is also inserted in the first positioning groove.

[0012] As an improvement of this utility model, the distance between the two walls of the second positioning groove gradually increases from one end closer to the bottom of the second positioning groove to the other end, and a positioning threaded hole is provided at the bottom of the second positioning groove. A countersunk hole is provided on the positioning block, and a through hole is provided at the bottom of the countersunk hole. A positioning bolt is inserted in the through hole and is screwed on the positioning threaded hole. The nut of the positioning bolt is located in the countersunk hole.

[0013] As an improvement of this utility model, a first positioning hole is provided on the support base plate, and a second positioning hole is provided on the triangular seat. A positioning pin that is also inserted in the first positioning hole is inserted into the second positioning hole. As an improvement of this utility model, the supporting base plate is annular, and the line connecting the first positioning groove and the first positioning hole is located in the radial direction of the supporting base plate.

[0014] As an improvement of this utility model, the triangular seat and the supporting base plate are fixedly connected by mounting bolts, and the mounting bolts are located on the line connecting the first positioning groove and the first positioning hole.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects: 1. By setting a sliding rod between the support base plate and the top plate to replace the slide rail on the traditional triangular seat, the installation accuracy of the slider does not need to rely excessively on the machining accuracy and installation accuracy of the triangular seat, which greatly reduces the machining accuracy requirements of the triangular seat and the machining cost is relatively low.

[0016] 2. By setting a strip-shaped hole and adjusting plate to replace the traditional conical adjusting port, the end face of the adjusting bolt can directly abut against the adjusting plate to form a surface contact. The contact area is relatively large, and the stability of the triangular adjustment is relatively high. At the same time, since the bolt of the kit is arranged vertically, no horizontal thrust is generated when adjusting the triangular position. The slider slides smoothly and is not easy to wear.

[0017] 3. The positioning accuracy between the triangular base and the support base plate is effectively improved by setting positioning grooves and positioning blocks. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection structure of the triangular seat of the circular knitting machine according to this utility model; Figure 2 This is a partially exploded schematic diagram of the connecting structure of the triangular seat of the circular knitting machine according to this utility model. Some parts are omitted in the figure.

[0019] The corresponding markings in the diagram are as follows: 10-Support base plate; 11-Mounting bolts; 12-Positioning ring; 13-First positioning groove; 14-Locking bolt; 15-First positioning hole; 16-Second positioning hole; 17-Positioning pin; 20 - Triangular base; 21 - Strip hole; 22-Support; 23-Adjusting bolt; 24 - First spring; 25 - Second positioning groove; 26-Locking block; 27-Locking threaded hole; 28 - Countersunk hole; 29 - Through hole; 30 - Slider; 31 - Adjusting plate; 40 - Top plate; 50 - Slide bar; 51 - Second spring. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the terms "first" and "second" used in the present invention are used to distinguish different objects, rather than to describe a specific order.

[0021] like Figures 1-2 As shown, this embodiment provides a connecting structure for a triangular seat of a circular knitting machine, including a support base plate 10, a triangular seat 20, a slider 30, and a top plate 40. The support base plate 10 and the top plate 40 are both annular. Apart from the structure mentioned below, the structure of the support base plate 10 and the top plate 40 is the same as the structure of the support base plate and the top plate on the existing circular knitting machine, which is not the focus of this embodiment and will not be described in detail here.

[0022] The lower end of the triangular seat 20 is fixedly connected to the support base plate 10, and the upper end is fixedly connected to the top plate 40. The specific fixed connection structure is the same as that of existing circular knitting machines, that is, the triangular seat 20 and the support base plate 10 are fixedly connected by mounting bolts 11, and the triangular seat 20 and the top plate 40 are fixedly connected by connecting bolts (not shown in the figure). Of course, the support base plate 10 and the top plate 40 are provided with multiple triangular seats 20, and the connection structure of each triangular seat 20 is the same. For ease of description, only one triangular seat 20 will be used as an example in the following description.

[0023] Unlike existing circular knitting machines, this embodiment does not use the positioning structure between the cam seat 20 and the support base plate 10 in existing circular knitting machines. Instead, it uses the following positioning structure: a positioning ring 12 is fixedly connected or integrally connected to the support base plate 10 and arranged coaxially with the support base plate 10. A first positioning groove 13 is provided on the outer peripheral wall of the positioning ring 12. A second positioning groove 25 is provided at the lower end of the cam seat 20. A positioning block 26 is fixedly connected in the second positioning groove 25. The positioning block 26 is also inserted in the first positioning groove 13, thereby realizing the positioning of the cam seat 20 on the support base plate 10.

[0024] Preferably, the distance between the two walls of the second positioning groove 25 gradually increases from one end closer to the bottom of the groove to the other end. That is, the walls of the second positioning groove 25 are inclined sidewalls relative to its bottom. A positioning threaded hole 27 is provided at the bottom of the second positioning groove 25, and a countersunk hole 28 is provided on the positioning block 26. A through hole 29 is provided at the bottom of the countersunk hole 28, through which a positioning bolt 14, which is also screwed onto the positioning threaded hole 27, is inserted. The nut of the positioning bolt 14 is completely located within the countersunk hole 28. Thus, when the positioning block 26 is locked using the positioning bolt 14, the inclined sidewalls ensure a tight fit between the positioning block 26 and the second positioning groove 25, improving positioning accuracy, without requiring an interference fit connection, which is less convenient to assemble. Of course, if necessary, an inclined guide surface that mates with the inclined sidewall of the second positioning groove 25 can also be provided on the positioning block 26.

[0025] Furthermore, a first positioning hole 15 is provided on the support base plate 10, and a second positioning hole 16 is provided on the triangular seat 20, which is coaxially arranged with the first positioning hole 15. A positioning pin 17 is inserted in the second positioning hole 16, which is also inserted in the first positioning hole 15. In this way, the positioning pin 17 can be used as an auxiliary positioning point, so that the positioning pin 17 and the positioning block 26 form a two-point positioning straight line, thereby ensuring that the positioning ring 12 still has high positioning accuracy after deformation or wear.

[0026] In addition, the line connecting the first positioning groove 13 and the first positioning hole 15 is located in the radial direction of the support base plate 10, and the mounting bolt 11 is located on the line connecting the first positioning groove 13 and the first positioning hole 15, which helps to further improve the positioning accuracy.

[0027] A horizontally penetrating slot 21 is provided on the triangular base 20, with the slot 21 running vertically. Supports 22 are fixedly or integrally connected to the side of the triangular base 20 away from the axial direction of the supporting base plate 10, located above and below the slot 21. Each support 22 has a vertically arranged threaded through hole, and each threaded through hole is screwed with an adjusting bolt 23. Each adjusting bolt 23 has a nut at one end away from the slot 21 or the adjusting plate 31 (mentioned below), and the other end is flat. That is, the nut of the adjusting bolt 23 connected to the support 22 above the slot 21 is at the upper end, and the nut of the adjusting bolt 23 connected to the support 22 below the slot 21 is at the lower end. The adjusting bolt 23 is preferably an internal hexagon adjusting bolt, so that a conventional L-shaped wrench can be used to rotate the adjusting bolt, avoiding the problem of a screwdriver being unable to rotate the adjusting bolt 23 connected to the support 22 located below the strip hole 21 due to interference with the triangular seat 20. Of course, a special tool can also be used to rotate the adjusting bolt, or the adjusting bolt can be set as an external hexagon adjusting bolt.

[0028] A vertically arranged sliding rod 50 is fixedly connected between the supporting base plate 10 and the top plate 40. Specifically, the supporting base plate 10 and the top plate 40 are each provided with mounting holes, and mounting bolts that are spirally connected to the sliding rod 50 are inserted into each mounting hole, thereby connecting the sliding rod 50 to the supporting base plate 10 and the top plate 40. Of course, if necessary, mutually matching mounting positioning holes can also be provided at the lower ends of the supporting base plate 10 and the sliding rod 50, respectively. Positioning can be achieved by simultaneously inserting a mounting positioning pin into the mutually matching mounting positioning holes, further improving the installation accuracy.

[0029] There are multiple slide rods 50, and each slide rod 50 is arranged in correspondence with a triangular seat 20. Specifically, when the cross-section of the slide rod 50 is non-circular, each triangular seat 20 can be arranged in correspondence with only one slide rod 50. When the cross-section of the slide rod 50 is circular, each triangular seat 20 needs to be arranged in correspondence with at least two slide rods 50 to prevent the slider 30 from rotating relative to the slide rod 50.

[0030] The number of sliders 30 is the same as that of the triangular bases 20, and the two correspond one-to-one. For ease of description, the sliders 50 and 30 mentioned below refer to the sliders 50 and 30 corresponding to one of the triangular bases 20.

[0031] The slider 30 is slidably connected to the slide rod 50 (when there are multiple slide rods 50 corresponding to one of the triangular seats 20, the slider 30 is simultaneously slidably connected to all slide rods 50 corresponding to that triangular seat 20), and the slider 30 is located on the side of the triangular seat 20 away from each support 22. The side of the slider 30 away from the corresponding triangular seat 20 is the mounting surface of the knitting triangle. The specific connection structure between the knitting triangle and the slider 30 is the same as that of existing circular knitting machines, and will not be described in detail here. This allows the mounting accuracy of the slider to be less dependent on the machining accuracy and mounting accuracy of the triangular seat 20, greatly reducing the machining accuracy requirements of the triangular seat 20 and resulting in relatively low machining costs. It should be noted that in this embodiment, the connection structure between the top plate 40 and the supporting base plate 10 is the same as that of existing circular knitting machines. The top plate 40 is indirectly connected to the supporting base plate 10 through the triangular seat 20. In order to improve the positional accuracy of the slide rod 50 in this embodiment, the following three preferred technical solutions are provided: The first technical solution is to ensure the positional accuracy of the slide rod 50 by ensuring the machining accuracy and installation accuracy of the upper and lower ends of the triangular seat 20 during processing and assembly. Since the triangular seat 20 and the slider 30 do not need to be connected to each other in this embodiment, there are no machining accuracy and installation accuracy requirements for the corresponding positions. Only the machining accuracy and installation accuracy of the upper and lower ends of the triangular seat 20 need to be ensured, and the cost will still be relatively low. The second technical solution is to machine the mounting holes for the slide rod 50 on the top plate 40 after the top plate 40 is assembled. This can reduce the requirements for the machining accuracy and installation accuracy of the upper and lower ends of the triangular seat 20. The third technical solution is to set the mounting holes on the top plate 40 as strip holes, so that the installation position between the top plate 40 and the slide rod 50 is adjustable.

[0032] The slide bar 50 is fitted with a second spring 51 at the upper and lower sides of the slider 30. One end of the second spring 51 abuts against the slider 30 and the other end abuts against the support base plate 10 or the top plate 40 to prevent the slider 30 from hitting the support base plate 10 or the top plate 40. At the same time, it can provide thrust when adjusting the position of the slider 30 to prevent sliding jamming.

[0033] An adjusting plate 31 is fixedly or integrally connected to the slider 30 and is movably inserted into the strip hole 21. The end of the adjusting plate 31 away from the slider 30 protrudes from the strip hole 21. One end of each adjusting bolt 23 connected to the triangular seat 20 abuts against the adjusting plate 21 passing through the triangular seat 20. In this way, by loosening the adjusting bolt 23 on one support 22 and then tightening the adjusting bolt 23 on the other support 22, the adjusting plate 31 can be pushed up and down, thereby driving the slider 30 to move up and down, so as to adjust the height position of the knitting triangle.

[0034] Preferably, in order to prevent bolt loosening and suppress vibration, in this embodiment, each adjusting bolt 23 is fitted with a first spring 24, one end of each first spring 24 abuts against the nut of the corresponding adjusting bolt 23, and the other end abuts against the corresponding support 22.

[0035] The present invention has been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the prior art, and these modifications all fall within the protection scope of the present invention.

Claims

1. A connecting structure for a cam seat on a circular knitting machine, comprising a supporting base plate, a cam seat, a slider, and a top plate, wherein the lower end of the cam seat is fixedly connected to the supporting base plate, and the upper end is fixedly connected to the top plate, characterized in that, The triangular base has a horizontally penetrating slot, and supports are fixedly or integrally connected to the triangular base at the upper and lower sides of the slot. Each support has a vertically arranged threaded through hole, and an adjusting bolt is screwed into each threaded through hole. A vertically arranged sliding rod is fixedly connected between the support base plate and the top plate. The slider is slidably connected to the sliding rod and is located on the side of the triangular base away from each support. An adjusting plate is fixedly or integrally connected to the slider and movably inserted into the slot. One end of each adjusting bolt abuts against the adjusting plate.

2. The knitting circular machine cam seat connection structure as described in claim 1, characterized in that, The adjusting bolt is an internal hexagon adjusting bolt.

3. The knitting circular machine cam seat connection structure as described in claim 1, characterized in that, The adjusting bolt has a nut at one end away from the adjusting plate, and each adjusting bolt is fitted with a first spring. One end of each first spring abuts against the corresponding nut, and the other end abuts against the corresponding support.

4. The knitting circular machine cam seat connection structure as described in claim 1, characterized in that, The slide bar is fitted with a second spring at the upper and lower sides of the slider, with one end of the second spring abutting against the slider and the other end abutting against the support base plate or the top plate.

5. The knitting circular machine cam seat connection structure as described in any one of claims 1-4, characterized in that, A positioning ring is fixedly or integrally connected to the support base plate. A first positioning groove is provided on the positioning ring. A second positioning groove is provided at the lower end of the triangular seat. A positioning block is fixedly connected in the second positioning groove. The positioning block is also inserted in the first positioning groove.

6. The knitting circular machine cam seat connection structure as described in claim 5, characterized in that, The distance between the two walls of the second positioning groove gradually increases from one end closer to the bottom of the second positioning groove to the other end, and a positioning threaded hole is provided at the bottom of the second positioning groove. A countersunk hole is provided on the positioning block, and a through hole is provided at the bottom of the countersunk hole. A positioning bolt is inserted in the through hole and is screwed on the positioning threaded hole. The nut of the positioning bolt is located in the countersunk hole.

7. The knitting circular machine cam seat connection structure as described in claim 5, characterized in that, The support base plate has a first positioning hole, and the triangular seat has a second positioning hole. A positioning pin that is also inserted in the first positioning hole is inserted into the second positioning hole.

8. The knitting circular knitting machine cam seat connection structure as described in claim 7, characterized in that, The supporting base plate is annular, and the line connecting the first positioning groove and the first positioning hole is located in the radial direction of the supporting base plate.

9. The knitting circular machine cam seat connection structure as described in claim 8, characterized in that, The triangular base and the supporting base plate are fixedly connected by mounting bolts, which are located on the line connecting the first positioning groove and the first positioning hole.

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