A blowing dust removal device of a knitting machine
By setting up a ring-shaped air inlet and outlet pipe assembly on the knitting machine, a high-efficiency and low-cost dust removal effect is achieved, solving the problems of low efficiency and large space occupation of existing devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN BINJI PRECISION MACHINERY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-05
AI Technical Summary
Existing dust removal devices for knitting machines are inefficient, costly, and space-consuming, and cannot effectively remove lint and dust from knitting components.
An air inlet pipe assembly is arranged in a ring around the bottom or underside of the large cauldron, connecting the air pump and the air outlet pipe assembly. The air outlet pipes are evenly distributed around the outer periphery of the needle cylinder, and multiple air outlet nozzles blow air through the knitting components. The air inlet pipe assembly forms a ring circuit, and the air pump can supply air to multiple air outlet pipes simultaneously, reducing the number of air pumps and the space occupied.
It improves dust removal efficiency, reduces costs and space requirements, and ensures thorough cleaning of knitting components, avoiding waste of air pumps and space.
Smart Images

Figure CN224325510U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of knitting machine technology, and specifically relates to a blowing and dust removal device for knitting machines. Background Technology
[0002] During the use of a knitting machine, debris and lint often enter its interior, which can easily affect the operation of the needle bed. Especially when the yarn is cut after knitting, the lint generated will follow the knitting needles or cylinder if it is not removed, which can easily damage various knitting components (including knitting needles, sinkers and yarn guides). Therefore, it is necessary to use a blowing dust removal device to remove lint and dust.
[0003] Existing dust removal devices typically only install one air nozzle at the knitting assembly for cleaning. The air nozzle is connected to an air pump via an air pipe. During cleaning, because the air nozzle is fixed, the cylinder needs to rotate multiple times to achieve complete dust removal, resulting in low dust removal efficiency. If multiple air nozzles are installed to improve dust removal efficiency, a corresponding number of air pumps are required, which is costly and takes up a lot of space. Utility Model Content
[0004] The purpose of this invention is to provide a dust removal device for knitting machines that improves dust removal efficiency while reducing cost and space occupation.
[0005] To achieve the above objectives, the solution of this utility model is as follows: a blowing and dust removal device for a knitting machine, including an air inlet pipe group, an air outlet pipe group, and an air pump. The air inlet pipe group is arranged above the needle cylinder and is distributed in a ring around the bottom or below the cauldron. The air inlet pipe group is connected to the air pump and the air outlet pipe group. The air outlet pipe group consists of multiple air outlet pipes, which are evenly distributed around the outer periphery of the needle cylinder. One end of each air outlet pipe is connected to the air inlet pipe group, and the other end of the air outlet pipe extends downward to blow air toward the knitting assembly.
[0006] Furthermore, the air intake pipe assembly consists of multiple air intake pipes arranged in a circle, with adjacent air intake pipes connected by a T-joint. One end of the air outlet pipe is connected to the air intake pipe via a T-joint, and the air pump is connected to the T-joint via a connecting air pipe.
[0007] Furthermore, the number of the three-way fittings is the same as the number of the intake pipes, the number of the intake pipes is one more than the number of the exhaust pipes, and there are two short intake pipes in the intake pipe group. The length of the short intake pipes is half the length of the other intake pipes, and the length of the other intake pipes is the same. The air pump is connected to the three-way fitting between the two short intake pipes.
[0008] Furthermore, the inner diameter of the air inlet pipe is smaller than the inner diameter of the air outlet pipe.
[0009] Furthermore, the number of air outlet pipes is 14, and the number of air inlet pipes is 15. The inner diameter of the air inlet pipe is 12cm, and the inner diameter of the air outlet pipe is 14cm.
[0010] Furthermore, a circular mounting bracket is fixed to the bottom or lower surface of the large cauldron, and the air intake pipe assembly is fixed to the inner circumference of the mounting bracket.
[0011] Furthermore, the intake pipe assembly is fixed to the inner circumference of the mounting bracket by cable ties.
[0012] Furthermore, the other end of the air outlet tube faces the opening between the upper and lower syringes.
[0013] Furthermore, the syringe has multiple mounting plates evenly distributed around its outer periphery, and the other end of the air outlet tube is provided with an air outlet nozzle. The air outlet nozzle is fixed on the mounting plate and faces the opening between the upper and lower syringes.
[0014] Furthermore, the bottom of the mounting plate is fixed to the outer wall of the needle selector base, and the top of the mounting plate is provided with a fixing hole for fixing the air nozzle. The top of the mounting plate is higher than the syringe and bent toward the syringe.
[0015] After adopting the above solution, the beneficial effects of this utility model are as follows:
[0016] Compared to traditional air blowing devices, this invention adds an air inlet pipe assembly. The air inlet pipe assembly is arranged in a ring around the bottom or below of the cauldron. The air pump and air outlet pipes are connected to the air inlet pipe assembly. Multiple air outlet pipes are evenly distributed around the outer periphery of the needle cylinder. Because the air inlet pipe assembly is arranged in a ring, it forms a circular loop. After the air pump pumps air into the air inlet pipe assembly, the air inlet pipe assembly can evenly input air into each air outlet pipe, so as to control multiple air inlet pipes to blow air onto the knitting components at the same time. The blowing can be completed with one rotation of the needle cylinder or even without one rotation, which greatly improves the dust removal efficiency. Moreover, one air pump can realize the simultaneous blowing and dust removal of multiple air outlet pipes, reducing costs and space occupation. In addition, the air inlet pipe assembly is arranged in a ring around the bottom or below of the cauldron, which does not take up too much space and will not interfere with the operation of other knitting machine components. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the present invention installed on a knitting machine;
[0018] Figure 2 This is a cross-sectional view of the air outlet tube of this utility model installed on the outer periphery of the syringe.
[0019] Figure 3 This is a front view of the air outlet tube of this utility model installed on the outer periphery of the syringe;
[0020] Figure 4This is a bottom view of the connection between the air outlet pipe and the air inlet pipe assembly of this utility model;
[0021] Figure 5 for Figure 4 Enlarged view of section A in the image;
[0022] Figure 6 This is a front view of the mounting plate of this utility model.
[0023] Label Explanation:
[0024] 1. Air inlet assembly; 11. Short air inlet; 2. Air outlet assembly; 21. Air outlet pipe; 22. Air outlet nozzle; 3. T-fitting; 4. Connecting air pipe; 5. Large tripod; 6. Syringe; 61. Upper syringe; 62. Lower syringe; 7. Mounting bracket; 8. Mounting plate; 81. Fixing hole; 82. Long hole; 9. Needle selector base; 10. Support frame. Detailed Implementation
[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] like Figure 1-6 As shown, this application provides a dust removal device for a knitting machine, including an air inlet pipe assembly 1, an air outlet pipe assembly 2, and an air pump (not shown in the figure). The air inlet pipe assembly 1 is arranged in a ring around the bottom surface or below a large cauldron 5. The large cauldron 5 is located above a needle cylinder 6, and the air inlet pipe assembly 1 is also located above the needle cylinder 6. The air inlet pipe assembly 1 connects the air pump and the air outlet pipe assembly 2. The air pump pumps air into the air inlet pipe assembly 1, and the air enters the air outlet pipe assembly 2 after passing through the air inlet pipe assembly 1, and is sprayed out from the air outlet of the air outlet pipe assembly 2 to perform dust removal.
[0027] Specifically, the air outlet assembly 2 consists of multiple air outlet tubes 21 evenly distributed around the outer periphery of the syringe 6. One end of each air outlet tube 21 is an air inlet connected to the air inlet assembly 1, and the other end is an air outlet extending downwards towards the knitting assembly. The orientation of the air outlet of the air outlet tube 21 can be adjusted to face any position on the knitting assembly where dust removal is required, such as... Figure 2 As shown, in this embodiment, the air outlet of the air outlet pipe 21 faces the opening between the upper needle cylinder 61 and the lower needle cylinder 62. At this position, knitting components such as knitting needles, sinkers, sinker seats, yarn inlets, yarn guide channels, and the gap between the needle groove and the needle bed can be blown out.
[0028] Because the air inlet pipe group 1 is arranged in a circular pattern, forming a loop, after the air pump pumps air into the air inlet pipe group 1, the air inlet pipe group 1 can evenly input air into each air outlet pipe 21, so as to control multiple air inlets to blow air onto the knitting components at the same time. The needle cylinder 6 can complete the blowing with one rotation or even without rotating one rotation, which greatly improves the dust removal efficiency. Moreover, one air pump can realize the simultaneous blowing and dust removal of multiple air outlet pipes 21, reducing costs and space occupation. In addition, the air inlet pipe group 1 is arranged in a circle on or below the bottom of the large cauldron 5, which will not occupy too much space and will not interfere with the operation of other knitting machine components.
[0029] Key references Figure 4-5 The intake pipe assembly 1 is specifically composed of multiple intake pipes arranged in a circle. Adjacent intake pipes are connected by a T-joint 3. One end of the exhaust pipe 21 is connected to the intake pipe through the T-joint 3. The air pump is connected to the T-joint 3 through a connecting air pipe 4. That is, two of the interfaces of the T-joint 3 are respectively connected to two adjacent intake pipes, and the remaining interface is used to connect to the air inlet of the exhaust pipe 21 or to the air pump, so that the annular intake pipe assembly 1 is connected to the exhaust pipe 21 and the air pump. Thus, the number of intake pipes is one more than the number of exhaust pipes 21, and the number of T-joints 3 is the same as the number of intake pipes.
[0030] As a preferred embodiment, to ensure uniform air supply, the air inlet pipe group 1 has two short air inlet pipes 11. The length of the short air inlet pipe 11 is half the length of the other air inlet pipes, which are of the same length. The air pump is connected to the tee 3 between the two short air inlet pipes 11, and the other tee 3s are all connected to the air outlet pipes 21. This arrangement ensures that the air source access point is located at the symmetrical center of the annular pipeline, and the airflow can be distributed extremely evenly to each tee 3 on the annular pipeline. This achieves uniform distribution of airflow among the various air outlet branches, ensuring the uniformity and efficiency of the dust removal effect of the knitting machine.
[0031] Furthermore, in order to ensure that the air intake pipe assembly 1 can input air pressure into the air outlet pipe 21, the inner diameter of the air intake pipe is set to be smaller than that of the air outlet pipe 21. This makes the air pressure in the air intake pipe greater than the air pressure in the air outlet pipe 21, thereby successfully forcing air into the air outlet pipe 21.
[0032] like Figure 4 As shown, in a specific embodiment, the number of air outlet pipes 21 is 14, and they are evenly distributed axially. The number of air inlet pipes and three-way fittings 3 is 15. The inner diameter of the air inlet pipe is 12cm, and the inner diameter of the air outlet pipe 21 is 14cm. This arrangement greatly improves the purging efficiency, and the syringe 6 can complete the purging without rotating one revolution.
[0033] Key references Figure 1 and Figure 4A circular mounting bracket 7 is fixed to the bottom surface of the large cauldron 5. This mounting bracket 7 is used to install the air intake pipe assembly 1. The air intake pipe assembly 1 can be distributed around the inner circumference, outer circumference, or bottom surface of the mounting bracket 7, preferably around the inner circumference of the mounting bracket 7. This allows the air intake pipe assembly 1 to be hidden within the inner circumference of the mounting bracket 7, reducing the space occupied and preventing damage to the air intake pipe assembly 1. The air intake pipe assembly 1 can be fixed to the inner circumference of the mounting bracket 7 with cable ties (not shown in the figure) for easy assembly and disassembly. To facilitate the installation of the mounting bracket 7, multiple hooks (not shown in the figure) can be provided on the bottom surface of the large cauldron 5. The hooks can be fixed to the large cauldron 5 with bolts, and then the mounting bracket 7 can be hung on the hooks. This installation also allows for a gap between the mounting bracket 7 and the large cauldron 5, through which the cable ties pass to fix the air intake pipe.
[0034] Key references Figure 1-3 and Figure 6 The syringe 6 has multiple mounting plates 8 evenly distributed around its outer circumference. At the other end of the air outlet pipe 21, i.e., the air outlet position, is an air outlet nozzle 22. The air outlet nozzle 22 is fixed to the mounting plate 8, and faces the opening between the upper syringe 61 and the lower syringe 62. Gas in the air outlet pipe 21 is ejected through the air outlet nozzle 22 to purge air. The mounting plate 8 facilitates the installation and fixation of the air outlet pipe 21. The bottom of the mounting plate 8 can be fixed to the outer wall of the needle selector base 9, specifically by bolts. The top of the mounting plate 8 has a fixing hole 81, in which the air outlet nozzle 22 can be snapped and fixed, facilitating the installation and removal of the air outlet nozzle 22. Furthermore, the top of the mounting plate 8 is higher than the syringe 6 and slightly curved towards the syringe 6, causing the air outlet nozzle 22 to tilt, allowing it to blow air towards the opening between the upper syringe 61 and the lower syringe 62. The curvature of the mounting plate 8 is adjustable, thereby adjusting the tilt angle of the air outlet nozzle 22 to purge different positions. Furthermore, the bottom of the mounting plate 8 is provided with an elongated hole 82 for bolts to pass through, which can adjust the height of the mounting plate and further adjust the blowing position of the air nozzle 22.
[0035] Key references Figure 1 The air pump can be specifically installed at the bottom of the knitting machine. The connecting air pipe 4 between the air pump and the three-way fitting 3 can be placed on the support frame 10 of the knitting machine and then extended to the bottom of the knitting machine. It will not interfere with other components or affect the operation of the operator.
[0036] The above description is only a preferred embodiment of this utility model and is not intended to limit 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 dust removal device for a knitting machine, characterized in that: It includes an air inlet tube assembly, an air outlet tube assembly, and an air pump. The air inlet tube assembly is located above the syringe barrel and is arranged in a ring around the bottom or below the cauldron. The air inlet tube assembly connects the air pump and the air outlet tube assembly. The air outlet tube assembly consists of multiple air outlet tubes, which are evenly distributed around the outer periphery of the syringe barrel. One end of each air outlet tube is connected to the air inlet tube assembly, and the other end of each air outlet tube extends downwards to blow air toward the knitting assembly.
2. The dust removal device for a knitting machine as described in claim 1, characterized in that: The air intake pipe assembly consists of multiple air intake pipes arranged in a circle, with adjacent air intake pipes connected by a T-joint. One end of the air outlet pipe is connected to the air intake pipe via a T-joint, and the air pump is connected to the T-joint via a connecting air pipe.
3. The dust removal device for a knitting machine as described in claim 2, characterized in that: The number of T-joints is the same as the number of intake pipes. The number of intake pipes is one more than the number of exhaust pipes. There are two short intake pipes in the intake pipe group. The length of the short intake pipe is half the length of the other intake pipes. The length of the other intake pipes is the same. The air pump is connected to the T-joint between the two short intake pipes.
4. The dust removal device for a knitting machine as described in claim 3, characterized in that: The inner diameter of the air inlet pipe is smaller than the inner diameter of the air outlet pipe.
5. The dust removal device for a knitting machine as described in claim 4, characterized in that: The number of air outlet pipes is 14, and the number of air inlet pipes is 15. The inner diameter of the air inlet pipe is 12cm, and the inner diameter of the air outlet pipe is 14cm.
6. The dust removal device for a knitting machine as described in claim 1, characterized in that: A circular mounting bracket is fixed to the bottom or below the large cauldron, and the air intake pipe assembly is fixed to the inner circumference of the mounting bracket.
7. The dust removal device for a knitting machine as described in claim 6, characterized in that: The intake manifold assembly is secured to the inner circumference of the mounting bracket with cable ties.
8. The dust removal device for a knitting machine as described in claim 1, characterized in that: The other end of the air outlet tube faces the opening between the upper and lower syringe barrels.
9. A dust removal device for a knitting machine as described in claim 1 or 8, characterized in that: The syringe has multiple mounting plates evenly distributed around its outer periphery. The other end of the air outlet tube is provided with an air outlet nozzle, which is fixed on the mounting plate and faces the opening between the upper and lower syringe barrels.
10. The dust removal device for a knitting machine as described in claim 9, characterized in that: The bottom of the mounting plate is fixed to the outer wall of the needle selector base, and the top of the mounting plate is provided with a fixing hole for fixing the air nozzle. The top of the mounting plate is higher than the syringe and bent toward the syringe.