Protective supporting device for needle cylinder of high-precision circular knitting machine

Abstract

The utility model discloses a kind of high-precision circular knitting machine needle cylinder protective supporting devices including needle cylinder, the needle cylinder outside is fixedly connected with support frame, and support frame is distributed at the needle cylinder outside equidistantly, and needle cylinder outside lower end is fixedly connected with isolating cover, while isolating cover inner wall is slidably connected with protective cover;The protective cover inner wall is attached to the needle cylinder surface, the isolating cover outside upper end is provided with fixed block by height adjusting assembly, and the fixed block upper end is fixedly connected with limit rod, while limit rod is slidably penetrated and is connected with pull rod;The support frame inner wall is fixedly connected with connecting frame.The high-precision circular knitting machine needle cylinder protective supporting device, by height adjustment to protective cover, can realize the all-around wrapping of circular knitting machine, not only can block outside impurity, foreign matter enters, while prevent its from causing abrasion, blockage or damage to needle cylinder and internal precision components, guarantee needle cylinder stable operation and knitting product quality.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting machines, specifically to a protective support device for the needle cylinder of a high-precision circular knitting machine. Background Technology

[0002] Circular knitting machines, also known as circular weft knitting machines (or circular weft knitting machines), have seen rapid development due to their numerous loop-forming systems (commonly referred to as yarn feed paths or loop formation paths, or simply paths), high speeds, high output, rapid pattern changes, good fabric quality, fewer processing steps, and strong product adaptability. The knitting mechanism is the heart of the circular knitting machine, mainly composed of components such as the cylinder, needles, saddle, and sinkers (only found on single-jersey machines).

[0003] In existing circular knitting machines, the needle cylinder is mainly installed on the inner ring of the needle cylinder, which is fixed by structures such as crossbeams, brackets, and bases. Since the needle cylinder needs to work continuously, relying solely on the inner ring for fixation results in poor support and generates significant noise. To solve the above problems, a needle cylinder support assembly for a circular knitting machine can be referred to in the existing patent (Chinese patent application number CN202221452979.2, application date 2022-06-13). The circular knitting machine cylinder support assembly includes a circular cylinder, an upper support assembly for fixing the upper half of the cylinder, a lower support assembly for fixing the lower half of the cylinder, a protective seat for connecting the upper and lower support assemblies, and a telescopic assembly for driving the upper support assembly to detach from the cylinder. The protective seat is located between the upper and lower support assemblies and is a circular ring structure. The maximum radius of the cylinder is smaller than the minimum radius of the protective seat. This circular knitting machine cylinder support assembly secures the upper and lower parts of the cylinder by setting the upper and lower support assemblies respectively, ensuring the cylinder's fixation effect. The telescopic assembly, in conjunction with the upper and lower support assemblies, facilitates the disassembly of the cylinder later.

[0004] When a circular knitting machine is running, the cylinder rotates at high speed. If foreign objects, such as tools or parts, accidentally fall from the surrounding environment, they will directly impact the cylinder, causing dents and scratches on its surface. This damage affects the roundness and surface roughness of the cylinder, hindering the movement of the knitting needles inside. This can lead to problems such as missed needles and broken needles during knitting, reducing the quality of the knitted products. In severe cases, it can even render the cylinder unusable, increasing equipment replacement costs. Furthermore, without protective devices, dust, fiber debris, and other impurities in the workshop can easily enter the cylinder and adhere to its surface or the knitting needles. During knitting, these impurities can cause yarn entanglement and blockage, resulting in fabric defects such as holes and stains, reducing the yield rate and increasing production costs.

[0005] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Summary of the Invention

[0006] The main objective of this invention is to provide a protective support device for the cylinder of a high-precision circular knitting machine, in order to solve the problem mentioned in the background art that the protective performance of the circular knitting machine cannot be improved, which allows fiber debris and dust from the environment to enter the gaps between the internal components of the device. This not only aggravates the wear of the device, but also increases the surface roughness of the cylinder, dulls the needles, shortens the service life of the equipment, and increases the frequency of equipment maintenance and replacement, thereby affecting the overall knitting effect.

[0007] To achieve the above objectives, the solution of this utility model is: a protective support device for the needle cylinder of a high-precision circular knitting machine, comprising a needle cylinder, a support frame fixedly connected to the outside of the needle cylinder, the support frame being evenly distributed on the outside of the needle cylinder, and an isolation cover fixedly connected to the lower end of the outside of the needle cylinder, while a protective cover is slidably connected to the inner wall of the isolation cover; the inner wall of the protective cover is in contact with the surface of the needle cylinder, a fixing block is provided at the upper end of the outside of the isolation cover through a height adjustment component, and a limit rod is fixedly connected to the upper end of the fixing block, while a pull rod is slidably connected through the limit rod; a connecting frame is fixedly connected to the inner wall of the support frame, and a connecting plate is slidably connected inside the connecting frame, and a push plate is provided on the surface of the connecting plate near the end of the protective cover through a locking component.

[0008] As a preferred technical solution of this application, the height adjustment component includes a connecting spring fixedly connected to the lower end of the pull rod, and the other end of the connecting spring is fixedly connected to the fixing block.

[0009] As a preferred technical solution of this application, a connecting block is fixedly connected to the upper outer side of the protective cover, and a sliding groove is provided inside the connecting block, and the pull rod is fixedly connected to the outer side of the protective cover.

[0010] As a preferred technical solution of this application, one end of a fixed spring is fixedly connected to the surface of the sliding groove, and the other end of the fixed spring is fixedly connected to a sliding block, and the surface of the sliding block is inclined near the end of the support frame.

[0011] As a preferred technical solution of this application, the engaging assembly includes a sliding rod fixedly connected to the outside of the support frame, and the sliding rod is slidably connected to a baffle, and a movable rod is fixedly connected to the surface of the baffle.

[0012] As a preferred technical solution of this application, one end of a buffer spring is fixedly connected to the surface of the baffle, and the other end of the buffer spring is fixedly connected to the support frame, and the moving rod is slidably disposed inside the support frame.

[0013] As a preferred technical solution of this application, one end of a sliding spring is fixedly connected to the surface of the connecting frame, and the sliding spring is fixedly connected to the connecting plate.

[0014] With the above structure, the protective support device for the needle cylinder of the high-precision circular knitting machine involved in this utility model can not only prevent external impurities from causing wear, blockage or damage to the needle cylinder and internal precision parts, but also ensure the stable operation of the needle cylinder and the quality of knitted products, avoid equipment failure or product quality problems due to insufficient protection, and reduce workshop noise level, improve the working environment and reduce damage to the hearing of operators.

[0015] 1. By adjusting the height of the protective cover, the circular knitting machine can be fully enclosed, which not only blocks external impurities and foreign objects from entering, but also prevents them from causing wear, blockage or damage to the cylinder and internal precision parts, ensuring stable operation of the cylinder and quality of knitted products; the height-adjustable protective cover facilitates this upgrade, even if the new equipment changes in height or other dimensions, the protective cover can still be adjusted to continue to be applicable, reducing the cost of replacing protective devices due to equipment upgrades.

[0016] 2. The full-coverage protective cover can effectively block the noise generated during the operation of the circular knitting machine from spreading outward, reduce the noise level in the workshop, improve the working environment, reduce damage to the hearing of operators, and at the same time prevent the fiber dust generated during the knitting process from spreading into the workshop air, keep the workshop floor and equipment surface clean, reduce the amount of cleaning work, improve the overall cleanliness of the workshop, create a good production environment, and protect the health of operators. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection structure between the syringe and the support frame of this utility model.

[0018] Figure 2 This is a schematic diagram of the connection structure between the protective cover and the connecting block of this utility model.

[0019] Figure 3 This is a schematic diagram of the connection structure between the protective cover and the syringe of this utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Figure 5 This is a schematic diagram of the connection structure between the sliding groove and the fixed spring of this utility model.

[0022] Figure 6 This is a schematic diagram of the connection structure between the baffle and the moving rod of this utility model.

[0023] Figure 7This utility model Figure 6 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Syringe; 2. Support frame; 3. Isolation cover; 4. Fixing block; 5. Limiting rod; 6. Pull rod; 7. Connecting spring; 8. Protective cover; 9. Connecting block; 10. Sliding groove; 11. Fixing spring; 12. Sliding block; 13. Sliding rod; 14. Baffle; 15. Moving rod; 16. Buffer spring; 17. Connecting frame; 18. Connecting plate; 19. Sliding spring; 20. Push plate. Detailed Implementation

[0025] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0026] like Figures 1 to 7 As shown, it is a protective support device for the needle cylinder of a high-precision circular knitting machine, which relates to this utility model.

[0027] Example 1: By using the support frame 2, the limiting rod 5, and the protective cover 8, fiber dust generated during the knitting process is prevented from spreading into the workshop air, thus improving the overall cleanliness of the workshop. Figures 1-3 As shown: It includes a syringe 1, a support frame 2 fixedly connected to the outside of the syringe 1, and the support frames 2 are evenly distributed on the outside of the syringe 1. An isolation cover 3 is fixedly connected to the lower outside of the syringe 1. At the same time, a protective cover 8 is slidably connected to the inner wall of the isolation cover 3. The inner wall of the protective cover 8 is in contact with the surface of the syringe 1. A fixing block 4 is set at the upper outside of the isolation cover 3 through a height adjustment component. A limit rod 5 is fixedly connected to the upper end of the fixing block 4. At the same time, a pull rod 6 is slidably connected through the limit rod 5. A connecting frame 17 is fixedly connected to the inner wall of the support frame 2. A connecting plate 18 is slidably connected inside the connecting frame 17. A push plate 20 is set at the end of the connecting plate 18 near the protective cover 8 through a locking component.

[0028] The worker installed the syringe 1 onto the circular knitting machine and installed the isolation cover 3 on the outside of the device (e.g., Figure 1 As shown), by adjusting the height, pulling the lever 6 causes the protective cover 8 to slide against the inner wall of the isolation cover 3, thus fully enveloping the device. Simultaneously, the locking assembly locks the adjusted protective cover 8 onto the outside of the support frame 2. At this point, the operator starts the circular knitting machine. The protective cover 8 prevents fiber dust generated during knitting from spreading into the workshop air, and ensures the stable operation of the cylinder 1 and the quality of the knitted products (such as...). Figure 2 and Figure 3 As shown in the figure, the protective cover 8 can be retracted by pressing the moving lever 15, which can meet the protection requirements of different syringes 1, reduce equipment procurement costs, and improve equipment versatility and utilization.

[0029] In Example 2, unlike Example 1, the protective cover 8 connects the spring 7 and the fixing spring 11, enabling comprehensive enclosure of the circular knitting machine and preventing external impurities and foreign objects from entering. Figures 4-5 As shown: The height adjustment assembly includes a connecting spring 7 fixedly connected to the lower end of the pull rod 6, and a fixing block 4 fixedly connected to the other end of the connecting spring 7. A connecting block 9 is fixedly connected to the upper outer side of the protective cover 8, and a sliding groove 10 is provided inside the connecting block 9. The pull rod 6 is fixedly connected to the outer side of the protective cover 8. One end of a fixing spring 11 is fixedly connected to the surface of the sliding groove 10, and a sliding block 12 is fixedly connected to the other end of the fixing spring 11. The surface of the sliding block 12 is inclined near the end of the support frame 2.

[0030] When protection is needed for the circular knitting machine, the operator pulls the lever 6. Under the constraint of the limiting rod 5 at the upper end of the fixed block 4, the lever 6 causes the protective cover 8 on the surface to slide against the inner wall of the isolation cover 3. At the same time, the connecting spring 7 on the surface of the isolation cover 3 is stretched towards the surface of the lever 6 (e.g., Figure 4 As shown, as the protective cover 8 slides on the inner wall of the isolation cover 3, it causes the outer connecting block 9 to contact the outer side of the support frame 2. When the sliding block 12 on the outer side of the connecting block 9 contacts the outer side of the support frame 2, because the surface of the sliding block 12 is inclined, the support frame 2 pushes the sliding block 12 to slide inside the sliding groove 10, and causes the surface fixing spring 11 to retract towards the inner wall of the connecting block 9 (as shown). Figure 5 As shown, when the upper end of the protective cover 8 is in contact with the outside of the syringe 1, the fixing spring 11 pushes the connecting block 9 and the inner wall of the support frame 2 to achieve a tight fit. At this time, the height of the protective cover 8 is adjusted to prevent debris and dust from causing wear, blockage or damage to the syringe 1 and its internal precision parts, thus ensuring the stable operation of the syringe 1 and the quality of the knitted products.

[0031] In Example 3, unlike Example 2, the design not only facilitates maintenance of the protective cover 8 by staff but also reduces the cost of replacing protective devices due to equipment upgrades. Figures 6-7 As shown: The engaging assembly includes a sliding rod 13 fixedly connected to the outside of the support frame 2, and the sliding rod 13 is slidably connected to a baffle 14. A moving rod 15 is fixedly connected to the surface of the baffle 14. One end of a buffer spring 16 is fixedly connected to the surface of the baffle 14, and the other end of the buffer spring 16 is fixedly connected to the support frame 2. The moving rod 15 is slidably disposed inside the support frame 2. One end of a sliding spring 19 is fixedly connected to the surface of the connecting frame 17, and the sliding spring 19 is fixedly connected to a connecting plate 18.

[0032] When the worker retracts the protective cover 8, pressing the moving rod 15 causes the moving rod 15, constrained by the sliding rod 13 on the outer side of the support frame 2, to move the baffle 14 on the surface of the support frame 2, sliding towards the surface of the support frame 2. The body then causes the buffer spring 16 on the surface of the baffle 14 to retract towards the surface of the support frame 2 (as shown). Figure 6 As shown), as the moving rod 15 slides inside the support frame 2, because the end of the moving rod 15 is arc-shaped and the surface of the connecting plate 18 is inclined, the moving rod 15 pushes the connecting plate 18 to slide inside the connecting frame 17 when it slides inside the support frame 2, and at the same time, it causes the sliding spring 19 on the surface to contract towards the surface of the connecting frame 17 (as shown). Figure 7 As shown, as the connecting plate 18 slides inside the connecting frame 17, it drives the push plate 20 on the surface to push the sliding block 12. When the sliding block 12 is completely inside the connecting block 9, the connecting spring 7 on the surface of the fixing block 4 drives the protective cover 8 to reset, thus meeting the protection requirements of different syringes 1, reducing equipment procurement costs, and improving equipment versatility and utilization.

[0033] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A protective support device for the needle cylinder of a high-precision circular knitting machine, comprising a needle cylinder (1), a support frame (2) fixedly connected to the outside of the needle cylinder (1), and the support frame (2) being evenly distributed on the outside of the needle cylinder (1), and an isolation cover (3) fixedly connected to the lower end of the outside of the needle cylinder (1), while a protective cover (8) is slidably connected to the inner wall of the isolation cover (3). Its features are: The inner wall of the protective cover (8) is in contact with the surface of the syringe (1). The upper outer side of the isolation cover (3) is provided with a fixing block (4) through a height adjustment component, and the upper end of the fixing block (4) is fixedly connected to a limit rod (5). At the same time, the limit rod (5) is slidably connected to a pull rod (6). The inner wall of the support frame (2) is fixedly connected to a connecting frame (17), and a connecting plate (18) is slidably connected inside the connecting frame (17). A push plate (20) is provided on the surface of the connecting plate (18) near the protective cover (8) through a snap-fit ​​assembly.

2. The protective support device for the needle cylinder of a high-precision circular knitting machine according to claim 1, characterized in that: The height adjustment assembly includes a connecting spring (7) fixedly connected to the lower end of the pull rod (6), and the other end of the connecting spring (7) is fixedly connected to the fixing block (4).

3. The protective support device for the needle cylinder of a high-precision circular knitting machine according to claim 2, characterized in that: The upper outer side of the protective cover (8) is fixedly connected to a connecting block (9), and a sliding groove (10) is provided inside the connecting block (9). The pull rod (6) is fixedly connected to the outer side of the protective cover (8).

4. A protective support device for the needle cylinder of a high-precision circular knitting machine according to claim 3, characterized in that: The sliding groove (10) has one end of a fixed spring (11) fixedly connected to its surface, and the other end of the fixed spring (11) is fixedly connected to a sliding block (12), and the surface of the sliding block (12) is inclined near the end of the support frame (2).

5. A protective support device for the needle cylinder of a high-precision circular knitting machine according to claim 4, characterized in that: The engaging assembly includes a sliding rod (13) fixedly connected to the outside of the support frame (2), and the sliding rod (13) is slidably connected through a baffle (14), and a moving rod (15) is fixedly connected to the surface of the baffle (14).

6. A protective support device for the needle cylinder of a high-precision circular knitting machine according to claim 5, characterized in that: One end of a buffer spring (16) is fixedly connected to the surface of the baffle (14), and the other end of the buffer spring (16) is fixedly connected to the support frame (2). The moving rod (15) is slidably disposed inside the support frame (2).

7. A protective support device for the needle cylinder of a high-precision circular knitting machine according to claim 6, characterized in that: The surface of the connecting frame (17) is fixedly connected to one end of the sliding spring (19), and the sliding spring (19) is fixedly connected to the connecting plate (18).

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