A pressure block structure acting on a large-disk gear of a knitting machine

Abstract

The utility model provides a kind of pressure block structure acting on the big disc gear of knitting machine, including big disc, big disc gear, pressure block, the middle part of the big disc is equipped with the recess of concave, the big disc gear is rotatably installed in recess, the top of the big disc gear is provided with several pressure blocks, the bottom surface of the pressure block is in contact with the top surface of big disc gear, by pressure block to big disc gear downward constraint force is exerted, can effectively prevent big disc gear from floating upward in original installation position. The design can inhibit the gear floatation caused by lubricating oil fluctuation in the process of knitting machine operation, thereby avoiding the defects such as yarn tension imbalance and shutdown mark caused thereby, and ensuring cloth surface quality.

Description

Technical Field

[0001] This utility model belongs to the field of knitting machine technology, and specifically relates to a pressure block structure acting on the large disc gear of a knitting machine. Background Technology

[0002] On a knitting machine, the large disc gear drives the needle cylinder to rotate at high speed to complete the knitting process. Because the large disc gear is located inside the groove of the large disc, the two are in direct contact with each other, and the contact area is large, resulting in severe wear between the large disc gear and the large disc. This can easily cause wear and damage to the large disc. To address this, lubricating oil needs to be injected into the groove of the large disc to reduce wear between the large disc gear and the large disc. As a result, the bottom of the large disc gear is immersed in lubricating oil. When the knitting machine is running, the lubricating oil fluctuates. Due to the buoyancy of the lubricating oil, the large disc gear will float upward, causing it to tilt or deviate from its original horizontal position. This can lead to needle cylinder drift, yarn tension imbalance, and uneven fabric thickness, affecting the weaving effect. Moreover, after the machine stops running, the large disc gear will fall back to its original position, causing a sudden change in yarn tension and resulting in stop marks (stop stripes) on the fabric surface. Utility Model Content

[0003] The purpose of this utility model is to provide a pressure block structure that acts on the large disc gear of a knitting machine. The pressure block is installed on the large disc gear to prevent the large disc gear from floating upward and to overcome the defects caused by the floating of the large disc gear.

[0004] To achieve the above objectives, the solution of this utility model is as follows: a pressure block structure acting on a large disc gear of a knitting machine is provided, including a large disc, a large disc gear, and pressure blocks. The large disc has a recessed groove in the middle, and the large disc gear is rotatably installed in the groove. Several pressure blocks are arranged above the large disc gear, and the bottom surface of the pressure blocks contacts the top surface of the large disc gear to prevent the large disc gear from floating upward.

[0005] Furthermore, the bottom surface of the pressure block includes a lower convex portion and an upper concave portion. The lower convex portion protrudes downward from the upper concave portion and is located inside the upper concave portion. The lower convex portion abuts against the inner side of the teeth of the large disc gear. The upper concave portion is located above the teeth of the large disc gear and has a gap between it and the teeth.

[0006] Furthermore, the pressure block is installed on the side wall of the large disc.

[0007] Furthermore, the pressing block is an L-shaped pressing block, including a vertical part and a horizontal part that are perpendicular to each other. The vertical part is installed on the inner side wall of the large plate, and the bottom surface of the horizontal part is provided with a lower convex part and an upper concave part.

[0008] Furthermore, the vertical part is provided with a through hole for the bolt to pass through, and the inner side wall of the large plate is provided with a threaded hole that mates with the bolt thread. The vertical part is fixed to the side wall of the groove by bolts.

[0009] Furthermore, the through hole on the vertical part is a vertically extending strip-shaped hole.

[0010] Furthermore, a washer is provided between the bolt and the pressure block.

[0011] Furthermore, the pressure block is a Z-shaped pressure block, including a first horizontal part, a vertical part, and a second horizontal part. The first horizontal part is located at the top of the side wall of the large disc, the vertical part is located on the inner side of the side wall of the large disc, the bottom surface of the second horizontal part abuts against the gear of the large disc, and the first horizontal part or the vertical part is fixed to the side wall of the large disc.

[0012] Furthermore, there are multiple pressure blocks, which are evenly distributed circumferentially on the inner wall of the large disc.

[0013] Furthermore, the number of pressing blocks is three, and the three pressing blocks are distributed at a 120° angle to each other.

[0014] After adopting the above solution, the beneficial effects of this utility model are as follows:

[0015] This invention features several pressure blocks positioned above the large disc gear. The bottom surface of each pressure block contacts the top surface of the large disc gear, applying a downward restraining force to effectively prevent the large disc gear from floating upwards from its original installation position. This design also suppresses gear floating caused by lubricating oil fluctuations during knitting machine operation, thus avoiding defects such as yarn tension imbalance and stop marks, ensuring fabric quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the pressure block installed on the inner wall of the large plate according to an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional view of an embodiment of the present invention, showing the pressure block installed on the inner wall of the large plate;

[0018] Figure 3 This is a side view of a pressure block according to an embodiment of the present invention;

[0019] Figure 4 This is a front view of a pressure block according to an embodiment of the present invention;

[0020] Figure 5 This is a bottom view of the pressure block according to an embodiment of the present invention;

[0021] Figure 6 This is a cross-sectional view of another embodiment of the present invention, showing the pressure block installed on the inner wall of the large plate.

[0022] Label Explanation:

[0023] 1. Large disc; 11. Groove; 2. Large disc gear; 21. Tooth; 3. Pressing block; 31. Lower convex part; 32. Upper concave part; 33. Vertical part; 331. Through hole; 34. Horizontal part; 35. First horizontal part; 36. Second horizontal part; 4. Bolt; 5. Washer. Detailed Implementation

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-6 As shown, this application provides a pressure block structure acting on the large disc gear of a knitting machine, including a large disc 1, a large disc gear 2, and pressure blocks 3. The large disc 1 has a recessed groove 11 in its center, and the large disc gear 2 is rotatably mounted within the groove 11. Several pressure blocks 3 are located above the large disc gear 2. The pressure blocks 3 can be fixedly mounted on the side wall of the large disc 1 or on other parts of the knitting machine; preferably, they are mounted on the side wall of the large disc 1. The bottom surface of the pressure block 3 contacts the top surface of the large disc gear 2, thus the pressure block 3 and the large disc gear 2 abut against each other vertically. The pressure block 3 applies a downward restraining force to the large disc gear 2, effectively preventing the large disc gear 2 from floating upwards from its original installation position. This design can suppress gear floating caused by lubricating oil fluctuations during the operation of the knitting machine, thereby avoiding defects such as yarn tension imbalance and stop marks, ensuring fabric quality.

[0026] Key references Figure 1-3 The bottom surface of the pressure block 3 includes a lower protrusion 31 and an upper concave portion 32. The lower protrusion 31 protrudes downward from the upper concave portion 32 and is located inside the upper concave portion 32. The lower protrusion 31 abuts against the inner side of the tooth 21 of the large disc gear 2. The upper concave portion 32 is located above the tooth 21 of the large disc gear 2 and has a gap with the tooth 21. That is, only the inner side of the tooth 21 of the large disc gear 2 contacts the pressure block 3, while the tooth 21 of the large disc gear 2 does not contact the pressure block 3. The tooth 21 is a key part of the large disc gear 2. The upper concave portion 32 can prevent wear between the pressure block 3 and the tooth 21, and improve the service life of the large disc gear 2.

[0027] like Figure 1-5As shown, in one embodiment, the pressure block 3 is preferably an L-shaped pressure block 3, including a vertical part 33 and a horizontal part 34 that are perpendicular to each other. The bottom of the vertical part 33 is connected to the outer side of the horizontal part 34. The vertical part 33 is specifically installed on the inner side wall of the large plate 1, that is, on the side wall of the groove 11. The bottom surface of the horizontal part 34 is provided with a lower protrusion 31 and an upper concave part 32. The L-shaped pressure block 3 structure facilitates the installation of the pressure block 3 on the large plate 1. Specifically, the pressure block 3 can be installed on the inner side wall of the large plate 1 by bolts 4. The vertical part 33 is provided with a through hole 331 for the bolt 4 to pass through. The inner side wall of the large plate 1 is provided with a threaded hole. The bolt 4 passes through the through hole 331 and is threaded into the threaded hole to fix the pressure block 3 on the inner side wall of the large plate 1. Preferably, a washer 5 is provided between the bolt 4 and the pressure block 3. The washer 5 can increase the friction and prevent the bolt 4 from loosening due to vibration.

[0028] Key references Figure 4 The through hole 331 on the vertical part 33 is preferably a vertically extending strip-shaped hole. Since the position of the threaded hole is fixed, during installation, the pressure block 3 can move up and down relative to the bolt 4 through the strip-shaped through hole 331, which makes it easy to adjust the height position of the pressure block 3, compensate for the size error of the pressure block 3, and ensure that the pressure block 3 can press down on the gear.

[0029] Key references Figure 6 In another embodiment, the pressure block 3 can also be a Z-shaped pressure block 3, including a first horizontal part 35, a vertical part 33 and a second horizontal part 36. The first horizontal part 35 is located at the top of the side wall of the large plate 1, the vertical part 33 is located on the inner side of the side wall of the large plate 1, and the second horizontal part 36 abuts against the large plate gear 2. The pressure block 3 can be installed by fixing the first horizontal part 35 or the vertical part 33 to the side wall of the large plate 1, specifically by fixing it with bolts 4.

[0030] If the first horizontal part 35 is fixed to the side wall of the large plate 1, a through hole 331 is opened in the first horizontal part 35, and a threaded hole is provided on the top of the side wall of the large plate 1 for fixing. This design makes the position of the pressure block 3 fixed, and the vertical part 33 needs to be set with the correct length dimension to ensure that the pressure block 3 can contact the large plate gear 2. There is no need to adjust the height position of the pressure block 3 during installation, which is convenient for installation. If the vertical part 33 is fixed to the side wall of the large plate 1, the fixing structure can be the same as the previous embodiment, and the height position of the pressure block 3 can also be adjusted to compensate for the dimensional error of the pressure block 3.

[0031] In addition to the two embodiments described above, the shape of the pressure block 3 can also be other shapes, such as a zigzag shape or a cuboid structure, as long as the bottom surface of the pressure block 3 can contact the top surface of the large disc gear 2.

[0032] The number of pressure blocks 3 is multiple, and the multiple pressure blocks 3 are evenly distributed circumferentially on the inner side wall of the large disc 1. The constraint force applied by the multiple pressure blocks 3 can ensure that the large disc gear 2 will not tilt or shake. In this utility model, the number of pressure blocks 3 is preferably three, and the three pressure blocks 3 are distributed at a 120° angle to each other. This not only has a good effect on preventing the large disc gear 2 from floating, but also has a relatively low cost.

[0033] The above description is only a preferred embodiment of this utility model and is not a limitation on the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A pressure block structure acting on the large disc gear of a knitting machine, characterized in that: It includes a large disc, a large disc gear, and pressure blocks. The large disc has a recessed groove in the middle, and the large disc gear is rotatably installed in the groove. Several pressure blocks are arranged above the large disc gear, and the bottom surface of the pressure blocks contacts the top surface of the large disc gear to prevent the large disc gear from floating upward.

2. The pressure block structure acting on the large disc gear of a knitting machine as described in claim 1, characterized in that: The bottom surface of the pressure block includes a lower convex part and an upper concave part. The lower convex part protrudes downward from the upper concave part and is located inside the upper concave part. The lower convex part abuts against the inner side of the teeth of the large disc gear. The upper concave part is located above the teeth of the large disc gear and has a gap between it and the teeth.

3. The pressure block structure acting on the large disc gear of a knitting machine as described in claim 2, characterized in that: The pressure block is installed on the side wall of the large disc.

4. The pressure block structure acting on the large disc gear of a knitting machine as described in claim 3, characterized in that: The pressing block is an L-shaped pressing block, including a vertical part and a horizontal part that are perpendicular to each other. The vertical part is installed on the inner side wall of the large plate, and the bottom surface of the horizontal part is provided with a lower convex part and an upper concave part.

5. The pressure block structure acting on the large disc gear of a knitting machine as described in claim 4, characterized in that: The vertical part is provided with a through hole for bolts to pass through, and the inner side wall of the large plate is provided with a threaded hole that mates with the bolt thread. The vertical part is fixed to the side wall of the groove by bolts.

6. The pressure block structure acting on the large disc gear of a knitting machine as described in claim 5, characterized in that: The through hole on the vertical part is a vertically extending strip-shaped hole.

7. A pressure block structure acting on the large disc gear of a knitting machine as described in claim 5 or 6, characterized in that: A gasket is provided between the bolt and the pressure block.

8. The pressure block structure acting on the large disc gear of a knitting machine as described in claim 3, characterized in that: The pressure block is a Z-shaped pressure block, including a first horizontal part, a vertical part and a second horizontal part. The first horizontal part is located at the top of the side wall of the large disc, the vertical part is located on the inner side of the side wall of the large disc, the bottom surface of the second horizontal part abuts against the gear of the large disc, and the first horizontal part or the vertical part is fixed to the side wall of the large disc.

9. A pressure block structure acting on the large disc gear of a knitting machine as described in claim 4 or 8, characterized in that: The number of pressure blocks is multiple, and the multiple pressure blocks are evenly distributed circumferentially on the inner side wall of the large plate.

10. The pressure block structure acting on the large disc gear of a knitting machine as described in claim 9, characterized in that: The number of pressure blocks is three, and the three pressure blocks are distributed at a 120° angle to each other.

Images