Production process and production equipment of knitted weft-knitted cow leather velvet fabric

Abstract

The production technology comprises a circular knitting machine body, a rack is arranged on the circular knitting machine body, the rack is provided with an air blowing cover and a dust suction cover which are coaxially distributed, the dust suction cover is arranged on the outer side of the air blowing cover and connected with an external dust suction device, and the air blowing cover is connected with an external air blowing device. An elastic knocking piece is arranged on the portion, located on one side of the air blowing channel, of the rack, the annular air blowing cover and the dust suction cover are coaxially distributed to form a surrounding type air blowing channel, the air blowing cover blows air flow to blow away yarn wool and dust on yarn, the dust suction cover on the outer side synchronously generates negative pressure to suck away blown impurities, the elastic knocking piece knocks the yarn, and the air blowing cover and the dust suction cover blow away the yarn. The cleaning effect is further improved through cooperation with a blowing and sucking structure, needle clamping during knitting is avoided fundamentally, fabric flaws are reduced, and the effect of improving the production quality and efficiency of the knitted weft-knitted cow leather velvet fabric is achieved.

Description

Technical Field

[0001] This application relates to the field of knitted weft-knitted fabric production equipment, and in particular to a production process and equipment for knitted weft-knitted cowhide suede fabric. Background Technology

[0002] Knitted weft-knitted suede fabrics are increasingly used due to their comfortable feel and practicality. Coffee charcoal fiber, as a functional fiber, can be used in the preparation of knitted weft-knitted suede fabrics to impart additional functions such as antibacterial and warmth retention, thereby increasing the product's added value.

[0003] The circular knitting machine is the core equipment for the production of this fabric. It mainly consists of seven parts, including the frame and the yarn feeding mechanism. The yarn is fed to the cylinder through the yarn feeder and then knitted by the knitting needles.

[0004] However, during the production process, lint and dust easily adhere to the surface of coffee charcoal fiber yarn, which can easily cause needle jamming during weaving, resulting in fabric defects. The existing cleaning method involves installing a fan on the frame, which can only blow away lint and dust, but cannot effectively collect them. This can easily cause lint and dust to re-adhere to the yarn and fabric, resulting in poor cleaning effect and seriously affecting the production quality and efficiency of knitted weft-knitted suede fabric. Summary of the Invention

[0005] To address the problem that existing air-blowing methods cannot effectively clean yarns, this application provides a production process and equipment for knitted weft-knitted suede fabric.

[0006] The technical solution provided in this application for a production process and equipment for knitted weft-knitted cowhide suede fabric is as follows: A knitted weft-knitted suede fabric production equipment includes a circular knitting machine body. A frame is mounted on the circular knitting machine body. A blower hood and a dust suction hood are mounted on the frame and located on the upper side of the circular knitting machine body. The blower hood and the dust suction hood are both annular and coaxially distributed. The dust suction hood is located outside the blower hood and connected to an external dust suction device. The blower hood is connected to an external blower device. A blower channel for yarn to pass through is formed between the dust suction hood and the blower hood. An elastic striking element is mounted on the frame and located on one side of the blower channel. The elastic striking element is used to strike the yarn.

[0007] By adopting the above technical solution, the annular blower hood and the dust suction hood form a surrounding blower channel. Multiple yarns are transported through the blower channel. The airflow blown out by the blower hood blows away the yarn fibers and dust. At the same time, the outer dust suction hood generates negative pressure to suck away the blown-away impurities. Meanwhile, the elastic striking element strikes the yarn, causing the tightly attached yarn fibers and dust to fall off, further improving the cleaning effect and enhancing the production quality and efficiency of knitting and weft knitting.

[0008] Optionally, the height of the dust hood is higher than that of the blower hood, the elastic striking element is disposed on the blower hood and located on one side of the dust hood, and multiple elastic striking elements are disposed and evenly distributed along the circumferential direction of the blower hood.

[0009] By adopting the above technical solution, multiple elastic striking parts are evenly distributed around the circumference, simultaneously striking and cleaning multiple yarns in the air blowing channel to ensure uniform cleaning effect. The dust suction hood forms an upward negative pressure adsorption area, sucking away the yarn fibers at the elastic striking parts, reducing the downward drift of impurities and improving adsorption efficiency.

[0010] Optionally, the elastic striking element includes an elastic plate and a mounting box. The mounting box is disposed on the upper side of the blower cover. The elastic plate is rotatably mounted on the mounting box and located on the upper side of the blower channel. One end of the elastic plate is rotatably connected to the mounting box. One side of the elastic plate is provided with an arc-shaped protrusion for contacting the yarn. The mounting box is provided with a driving element for pushing the elastic plate to rotate.

[0011] By adopting the above technical solution, the driving component pushes the elastic plate to rotate around the mounting box, and the arc-shaped protrusion makes flexible contact with the yarn and knocks it, avoiding damage to the yarn from hard knocks. The intermittent knocking of the elastic plate, combined with the blowing and suction structure, improves the cleaning effect.

[0012] Optionally, the driving component includes a cam and a rotating shaft. The rotating shaft is rotatably mounted on the mounting box, and the rotation axis of the rotating shaft is parallel to the axis of the blower shroud. The cam is rotatably mounted on the mounting box and coaxially fixedly connected to the rotating shaft. The side of the cam abuts against one side of the arc-shaped protrusion of the elastic plate. An abutting spring is provided inside the mounting box, and the abutting spring is connected to one side of the elastic plate.

[0013] By adopting the above technical solution, the rotating shaft drives the cam to rotate, and the eccentric structure of the cam pushes the elastic plate to rotate around the mounting box. The arc-shaped protrusion cooperates with the cam protrusion and abuts against the spring to provide elastic restoring force, so that the elastic plate can achieve reciprocating intermittent knocking, which has a good effect on shaking off yarn impurities.

[0014] Optionally, a rotating frame is rotatably mounted on the frame, the rotating frame is coaxially distributed with the blower cover, a rotating motor is provided on the frame, the rotating frame is connected to the output shaft of the rotating motor, a first gear is coaxially provided on the rotating shaft, and a first gear ring is provided on the rotating frame, the first gear meshing with the first gear ring.

[0015] By adopting the above technical solution, the rotating motor drives the rotating frame to rotate. Through the meshing of the first gear ring and the first gear, the rotating shafts of all elastic striking parts are driven to rotate synchronously, so as to realize the synchronous intermittent striking of multiple elastic striking parts, ensuring that the striking force and frequency of each yarn are consistent and the cleaning effect is uniform.

[0016] Optionally, the dust collection hood has a dust collection groove on its inner side, a grid plate is provided at the opening of the dust collection hood, a rotating ring is rotatably mounted on the inner side of the dust collection hood, the rotating ring is coaxially distributed with the dust collection hood, a rotating frame is provided on one side of the rotating ring and located at the dust collection groove, the rotating frame is in contact with the inner wall of the dust collection hood, and a connecting member for driving the rotating ring to rotate is provided on the frame.

[0017] By adopting the above technical solution, the grid plate forms evenly spaced entry holes, which facilitates the entry of yarn into the dust collection slot of the dust collection hood. The rotating ring drives the rotating frame to rotate along the inner wall of the dust collection hood, which promptly cleans the yarn and dust adsorbed on the dust collection slot and grid plate, reducing grid plate blockage and thus reducing the decrease in dust collection effect.

[0018] Optionally, the connector includes a mounting bracket and a second gear. The mounting bracket is disposed on the frame, and the second gear is rotatably mounted on the mounting bracket. One side of the rotating ring is located outside the dust collection hood. A second gear ring is disposed on the rotating ring. One side of the second gear meshes with one side of the first gear ring, and the side of the second gear away from the first gear ring meshes with the second gear ring.

[0019] By adopting the above technical solution, the rotational power of the rotating frame is used to drive the rotating ring to rotate through the meshing transmission of the first gear ring, the second gear, and the second gear ring, thereby achieving synchronous drive and improving the overall cleaning efficiency.

[0020] Optionally, a cleaning roller is rotatably mounted on the rotating frame. The cleaning roller is distributed parallel to the axis of the rotating ring. The cleaning roller is provided with bristles, one end of which is attached to one side of the grid plate.

[0021] By adopting the above technical solution, when the rotating frame drives the cleaning roller to move, the cleaning roller rolls in close contact with the grid plate, and the bristles can clean the grid plate, remove the fine fibers and dust that are clogging it, and ensure the ventilation and dust collection effect of the grid plate.

[0022] Optionally, a sliding block is slidably mounted on the rotating frame, the sliding block slides in a direction toward or away from the grid plate, the cleaning roller is rotatably connected to the sliding block, and a sliding spring is provided on the rotating frame, one end of the sliding spring being connected to one side of the sliding block.

[0023] By adopting the above technical solution, the sliding spring pushes the sliding block, so that the bristles on the cleaning roller are always in close contact with the grid plate, ensuring that the cleaning effect is always stable. The sliding structure of the sliding block can buffer the contact impact force between the cleaning roller and the grid plate, avoiding excessive wear of the bristles.

[0024] A production process for knitting weft-knitted suede fabric using the above-mentioned equipment, specifically including the following steps: S1: Using coffee charcoal fiber and base yarn as yarn raw materials, the yarn is first conveyed through the air blowing channel between the air blowing hood and the dust suction hood of the machine frame. At the same time, the elastic plate rotates intermittently to push the yarn and remove impurities such as floating hair from the yarn. S2: The cleaned yarn is weft-knitted through the body of a circular knitting machine, controlling the needle density and knitting tension to form a basic fabric. S3: The greige fabric is washed, pre-shrinked, and brushed to create a uniform nap on the fabric surface. S4: After shaping and softening, the finished knitted weft-knitted suede fabric is obtained.

[0025] By adopting the above technical solution, the mixed yarn of coffee charcoal fiber and base yarn is first cleaned by efficient blowing, suction and knocking, avoiding needle jams and fabric defects caused by yarn lint and dust from the source, and ensuring the quality of the greige fabric weaving; then, the internal stress of the fabric is eliminated by washing and pre-shrinking, and the fabric is brushed to form a uniform suede surface. The shaping and softening finishing further optimizes the shape and feel of the fabric, ensuring the touch and practicality of the knitted weft-knitted suede fabric.

[0026] In summary, this application includes at least one of the following beneficial technical effects: The ring-shaped blower hood and dust suction hood form a surrounding blower channel, which is suitable for the simultaneous feeding of multiple yarns on a large circular knitting machine. The combination of blowing and suction effectively cleans yarn fibers and dust from the yarn, preventing impurities from re-attaching. The elastic striking element taps the yarn, shaking off tightly attached lint and dust. Combined with the blowing and suction structure, it enhances the cleaning effect, preventing needle jams during knitting, reducing fabric defects, and improving production quality and efficiency. The dust hood is taller, creating an upward negative pressure adsorption area to prevent blown-away impurities from drifting downwards and improve adsorption efficiency; multiple elastic tapping parts are evenly distributed around the circumference to ensure that every yarn is fully tapped, resulting in a uniform cleaning effect. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of this application.

[0028] Figure 2 This is a three-dimensional structural diagram of one side of the rack in this application.

[0029] Figure 3This is a three-dimensional structural diagram of the dust hood and blower hood of this application.

[0030] Figure 4 This is an enlarged three-dimensional structural diagram of part A of this application.

[0031] Figure 5 This is a partial exploded structural diagram of the rotating frame and cleaning roller of this application.

[0032] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0033] Reference numerals in the attached drawings: 1. Main body of the large circular knitting machine; 11. Frame; 111. Rotating frame; 1111. First gear ring; 12. Blower hood; 13. Dust suction hood; 131. Dust suction groove; 132. Grille plate; 14. Rotating motor; 2. Elastic striking component; 21. Elastic plate; 211. Arc-shaped protrusion; 22. Mounting box; 3. Driving component; 31. Cam; 32. Rotating shaft; 321. First gear; 33. Abutment spring; 4. Rotating ring; 41. Rotating frame; 411. Cleaning roller; 4111. Brush bristles; 412. Sliding block; 413. Sliding spring; 42. Second gear ring; 5. Connecting component; 51. Mounting frame; 52. Second gear. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] Embodiment 1 of this application discloses a production equipment for knitted weft-knitted suede fabric, referring to... Figure 1 and Figure 2 The system includes a circular knitting machine body 1, a frame 11, a blower hood 12, a dust collection hood 13, and an elastic striking element 2. The frame 11 is mounted on the circular knitting machine body 1. The blower hood 12 and the dust collection hood 13 are arranged in a ring and coaxially distributed on the upper side of the circular knitting machine body 1 on the frame 11. The dust collection hood 13 is located outside the blower hood 12 and is connected to an external dust collection device. The blower hood 12 is connected to an external blower device, forming a blower channel for the yarn to pass through. The elastic striking element 2 is located on one side of the blower channel on the frame 11 and is used to strike the yarn. The blower and dust collection devices can remove easily blown-off yarn fibers and dust, while the elastic striking element 2 can shake off tightly attached impurities, thereby improving the cleaning effect and thus improving the production quality and efficiency of knitting and weft knitting.

[0036] Reference Figure 2 and Figure 3The dust collection hood 13 includes a dust collection groove 131, a grid plate 132, and a pipe connected to an external dust collection device. The dust collection groove 131 is located inside the dust collection hood 13 and is used to collect impurities blown away from the yarn. The grid plate 132 is installed at the opening of the dust collection groove 131 in the dust collection hood 13, forming evenly spaced entry holes to facilitate the entry of yarn into the dust collection groove 131, while also preventing larger objects from being sucked in.

[0037] Reference Figure 2 and Figure 4 The elastic striking component 2 includes an elastic plate 21 and a mounting box 22. The mounting box 22 is located on the upper side of the blower cover 12. The elastic plate 21 is rotatably mounted on the mounting box 22 and located on the upper side of the blower channel. One end of the elastic plate 21 is rotatably connected to the mounting box 22. One side of the elastic plate 21 is provided with an arc-shaped protrusion 211 for contacting the yarn. The mounting box 22 is provided with a driving component 3 for pushing the elastic plate 21 to rotate. The elastic plate 21 is a rubber plate, which can generate elastic deformation when in contact with the yarn, avoiding damage to the yarn from hard impacts. The driving component 3 pushes the elastic plate 21 to rotate around the mounting box 22, so that the arc-shaped protrusion 211 makes flexible contact with the yarn and strikes it, thereby cleaning the yarn.

[0038] Reference Figure 2 and Figure 4 The driving component 3 includes a cam 31 and a rotating shaft 32. The rotating shaft 32 is vertically rotatably mounted on the mounting box 22, and its rotation axis is parallel to the axis of the blower shroud 12. The cam 31 is rotatably mounted on the mounting box 22 and coaxially fixedly connected to the rotating shaft 32. The side of the cam 31 abuts against one side of the arc-shaped protrusion 211 of the elastic plate 21. A retaining spring 33 is provided inside the mounting box 22 and is connected to one side of the elastic plate 21. When the rotating shaft 32 drives the cam 31 to rotate, the protrusion of the cam 31 pushes the elastic plate 21 to rotate around the mounting box 22, while the retaining spring 33 provides elastic restoring force, so that the elastic plate 21 can return to its initial position after the cam 31 rotates one revolution, thereby realizing the reciprocating intermittent tapping of the elastic plate 21, effectively shaking off tightly attached impurities on the yarn.

[0039] Reference Figure 2 and Figure 4A rotating frame 111 is rotatably mounted on the frame 11, and the rotating frame 111 is coaxially distributed with the blower shroud 12. A rotating motor 14 is installed on the frame 11, and the rotating frame 111 is connected to the output shaft of the rotating motor 14. A first gear 321 is coaxially arranged on the rotating shaft 32, and a first gear ring 1111 is coaxially distributed on the rotating frame 111. The first gear 321 meshes with the first gear ring 1111. The rotating motor 14 provides power for the rotation of the rotating frame 111. The meshing transmission of the first gear 321 and the first gear ring 1111 causes the rotating frame 111 to synchronously drive the rotating shaft 32 of all the elastic striking parts 2 to rotate, realizing the synchronous intermittent striking of multiple elastic striking parts 2, ensuring that the striking force and frequency of each yarn are consistent, thereby ensuring the uniformity of the cleaning effect.

[0040] Reference Figure 3 A rotating ring 4 is rotatably mounted inside the dust hood 13 and located on the top wall. The rotating ring 4 is coaxially distributed with the dust hood 13, with the upward-facing side of the rotating ring 4 located on the outside of the dust hood 13. A rotating frame 41 is provided on one side of the rotating ring 4 and located at the dust collection groove 131. The rotating frame 41 is vertically arranged and fits against the inner wall of the dust hood 13. A connecting piece 5 is provided on the frame 11 for driving the rotating ring 4 to rotate. The rotating frame 41 rotates together with the rotating ring 4, cleaning the lint and dust adsorbed on the dust collection groove 131 and the grid plate 132, reducing the problem of reduced dust collection effect caused by the grid plate 132 becoming clogged.

[0041] Reference Figure 2 and Figure 3 The connecting component 5 includes a mounting bracket 51 and a second gear 52. The mounting bracket 51 is mounted on the frame 11, and the second gear 52 is rotatably mounted on the mounting bracket 51. One side of the rotating ring 4 is located outside the dust collection hood 13, and a second gear ring 42 is provided on the rotating ring 4. One side of the second gear 52 meshes with one side of the first gear ring 1111, and the side of the second gear 52 away from the first gear ring 1111 meshes with the second gear ring 42. The mounting bracket 51 provides mounting support for the second gear 52. Through the meshing transmission of the first gear ring 1111, the second gear 52, and the second gear ring 42, the rotational power of the rotating bracket 111 drives the rotating ring 4 to rotate, achieving synchronous drive and improving the overall cleaning efficiency.

[0042] Reference Figure 3 and Figure 5 A cleaning roller 411 is vertically mounted on the rotating frame 41. The cleaning roller 411 is parallel to the axis of the rotating ring 4. The cleaning roller 411 is equipped with bristles 4111, one end of which is in contact with one side of the grille plate 132. When the rotating frame 41 moves the cleaning roller 411, the cleaning roller 411 rolls in contact with the grille plate 132, and the bristles 4111 clean the grille plate 132, removing fine fibers and dust that cause blockage, thus ensuring the ventilation and dust extraction effect of the grille plate 132.

[0043] Reference Figure 3 and Figure 5 A sliding block 412 is slidably mounted on the rotating frame 41. The sliding block 412 slides towards or away from the grid plate 132. The cleaning roller 411 is rotatably connected to the sliding block 412. A sliding spring 413 is provided on the rotating frame 41, with one end of the sliding spring 413 connected to one side of the sliding block 412. The sliding block 412 can be mounted on the rotating frame 41 via a guide rail or a groove to ensure smooth sliding. The sliding spring 413 pushes the sliding block 412, ensuring that the bristles 4111 on the cleaning roller 411 are always in close contact with the grid plate 132, ensuring a consistently stable cleaning effect. At the same time, the sliding structure of the sliding block 412 can buffer the contact impact force between the cleaning roller 411 and the grid plate 132, preventing excessive wear of the bristles 4111.

[0044] The implementation principle of this embodiment is as follows: The external blowing device and the dust collection device start working. The external blowing device delivers airflow to the blowing hood 12, forming a ring-shaped blowing area that blows away the yarn passing through the blowing channel, removing easily blown-off yarn fibers and dust. Simultaneously, the external dust collection device creates negative pressure inside the dust collection hood 13, causing impurities blown off the yarn to enter the dust collection groove 131 through the grid plate 132, achieving initial cleaning. The rotating motor 14 starts, driving the rotating frame 111 to rotate. The rotating frame 111, through the meshing transmission of the first gear 321 and the first gear ring 1111, synchronously drives all rotating shafts 32 to rotate. The rotating shafts 32 drive the cam 31 to rotate, and the cam 31 pushes the elastic plate 21 to rotate. The arc-shaped protrusion 211 on the elastic plate 21 flexibly contacts and strikes the yarn, shaking off tightly attached impurities. The abutment spring 33 provides elastic restoring force, realizing the reciprocating intermittent striking of the elastic plate 21. As the rotating frame 111 rotates, the rotating ring 4 is driven to rotate through the meshing transmission of the first gear ring 1111, the second gear 52, and the second gear ring 42. The rotating ring 4 drives the rotating frame 41 to rotate along the inner wall of the dust collection hood 13. The cleaning roller 411 on the rotating frame 41 moves with the rotating frame 41 and rolls in contact with the grid plate 132. The bristles 4111 clean the grid plate 132, removing the fine fibers and dust that cause blockage. Example 2

[0045] The production process for knitting weft-knitted suede fabric using the above-described equipment, as provided in this application embodiment, includes the following steps: S1: Using coffee charcoal fiber and base yarn as yarn raw materials, the yarn is first conveyed through the air blowing channel between the air blowing hood 12 and the dust collection hood 13 of the frame 11. Simultaneously, the elastic plate 21 rotates intermittently, pushing the yarn to remove lint and other impurities. In this step, coffee charcoal fiber and base yarn are mixed in a certain proportion as yarn raw materials, and the yarn is fed into the air blowing channel by the yarn feeding device. An external air blowing device delivers airflow into the air blowing hood 12, and the airflow blows out from the air blowing hood 12, blowing away lint and dust from the yarn. At the same time, the rotating motor 14 drives the rotating frame 111 to rotate, which, through gear transmission, drives the elastic plate 21 of the elastic striking member 2 to rotate intermittently. The arc-shaped protrusions 211 on the elastic plate 21 flexibly contact and strike the yarn, shaking off tightly attached lint and dust. The dust collection hood 13 is connected to an external dust collection device, generating negative pressure to suck away the blown-off and shaken-off impurities, thereby achieving efficient cleaning of the yarn.

[0046] S2: The cleaned yarn is weft-knitted on the main body 1 of a circular knitting machine, with the needle density and knitting tension controlled to form a basic fabric. During the weft knitting process, the needle density and knitting tension are adjusted according to the required fabric specifications and performance requirements. The needle density affects the fabric's thickness and tightness, while the knitting tension affects its smoothness and elasticity. By precisely controlling these two parameters, the yarn can be uniformly knitted into the basic fabric, ensuring the quality and performance of the fabric.

[0047] S3: The greige fabric undergoes washing, pre-shrinking, and napping to create a uniform nap on the surface. Washing removes residual impurities and oil, while also making the fabric softer. Pre-shrinking eliminates internal stress, preventing shrinkage during subsequent use. Nailing involves rubbing the fabric surface with a napping machine, causing the fibers to stand up and creating a uniform nap, improving the fabric's feel and appearance.

[0048] S4: After setting and softening, the finished knitted weft-knitted suede fabric is obtained. Setting fixes the shape and size of the fabric, giving it better stability. Softening involves adding softeners and other chemical agents to make the fabric softer and more comfortable. After these two steps, the final knitted weft-knitted suede fabric has excellent tactile feel, practicality, and aesthetics.

[0049] The implementation principle of this embodiment is as follows: The production process first uses efficient blowing, suction, and beating to clean the mixed yarn of coffee charcoal fiber and base yarn, avoiding problems such as needle jams and fabric defects caused by yarn lint and dust from the source, thus ensuring the quality of the greige fabric weaving. Subsequent washing and pre-shrinking treatments eliminate internal stress in the fabric, while brushing treatment creates a uniform suede surface. Shaping and softening finishing further optimize the fabric's shape and feel. All steps in the entire production process work closely together and influence each other to jointly ensure the tactile feel and practicality of the knitted weft-knitted suede fabric.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A production equipment for knitted weft-knitted cowhide suede fabric, comprising a circular knitting machine body (1), wherein a frame (11) is provided on the circular knitting machine body (1), characterized in that: A blower hood (12) and a dust suction hood (13) are provided on the frame (11) and on the upper side of the large circular knitting machine body (1). The blower hood (12) and the dust suction hood (13) are both annular and coaxially distributed. The dust suction hood (13) is located outside the blower hood (12) and is connected to an external dust suction device. The blower hood (12) is connected to an external blower device. A blower channel for yarn to pass through is formed between the dust suction hood (13) and the blower hood (12). An elastic striking element (2) is provided on the frame (11) and on one side of the blower channel. The elastic striking element (2) is used to strike the yarn.

2. The production equipment for knitted weft-knitted suede fabric according to claim 1, characterized in that: The height of the dust hood (13) is higher than that of the blower hood (12). The elastic striking element (2) is disposed on the blower hood (12) and located on one side of the dust hood (13). There are multiple elastic striking elements (2) and they are evenly distributed at intervals along the circumferential direction of the blower hood (12).

3. The production equipment for knitted weft-knitted suede fabric according to claim 2, characterized in that: The elastic striking component (2) includes an elastic plate (21) and a mounting box (22). The mounting box (22) is disposed on the upper side of the blower cover (12). The elastic plate (21) is rotatably mounted on the mounting box (22) and located on the upper side of the blower channel. One end of the elastic plate (21) is rotatably connected to the mounting box (22). An arc-shaped protrusion (211) for contacting the yarn is provided on one side of the elastic plate (21). A driving component (3) for pushing the elastic plate (21) to rotate is provided on the mounting box (22).

4. The production equipment for knitted weft-knitted suede fabric according to claim 3, characterized in that: The drive component (3) includes a cam (31) and a rotating shaft (32). The rotating shaft (32) is rotatably mounted on the mounting box (22). The rotation axis of the rotating shaft (32) is parallel to the axis of the blower cover (12). The cam (31) is rotatably mounted on the mounting box (22) and is coaxially fixedly connected to the rotating shaft (32). The side of the cam (31) abuts against one side of the arc-shaped protrusion (211) of the elastic plate (21). An abutting spring (33) is provided inside the mounting box (22). The abutting spring (33) is connected to one side of the elastic plate (21).

5. The production equipment for knitted weft-knitted cowhide suede fabric according to claim 4, characterized in that: A rotating frame (111) is rotatably mounted on the frame (11). The rotating frame (111) is coaxially distributed with the blower cover (12). A rotating motor (14) is provided on the frame (11). The rotating frame (111) is connected to the output shaft of the rotating motor (14). A first gear (321) is coaxially provided on the rotating shaft (32). A first gear ring (1111) is provided on the rotating frame (111). The first gear (321) meshes with the first gear ring (1111).

6. The production equipment for knitted weft-knitted suede fabric according to claim 5, characterized in that: The dust collection hood (13) has a dust collection groove (131) on its inner side. The dust collection hood (13) has a grid plate (132) at its opening. A rotating ring (4) is rotatably installed on the inner side of the dust collection hood (13). The rotating ring (4) is coaxially distributed with the dust collection hood (13). A rotating frame (41) is provided on one side of the rotating ring (4) and at the dust collection groove (131). The rotating frame (41) is in contact with the inner wall of the dust collection hood (13). A connecting piece (5) for driving the rotating ring (4) to rotate is provided on the frame (11).

7. The production equipment for knitted weft-knitted suede fabric according to claim 6, characterized in that: The connector (5) includes a mounting bracket (51) and a second gear (52). The mounting bracket (51) is mounted on the frame (11). The second gear (52) is rotatably mounted on the mounting bracket (51). One side of the rotating ring (4) is located outside the dust hood (13). A second gear ring (42) is provided on the rotating ring (4). One side of the second gear (52) meshes with one side of the first gear ring (1111). The side of the second gear (52) away from the first gear ring (1111) meshes with the second gear ring (42).

8. The production equipment for knitted weft-knitted suede fabric according to claim 6, characterized in that: A cleaning roller (411) is rotatably mounted on the rotating frame (41). The cleaning roller (411) is parallel to the axis of the rotating ring (4). The cleaning roller (411) is provided with bristles (4111), and one end of the bristles (4111) is attached to one side of the grid plate (132).

9. The production equipment for knitted weft-knitted suede fabric according to claim 8, characterized in that: A sliding block (412) is slidably mounted on the rotating frame (41). The sliding block (412) slides in a direction toward or away from the grid plate (132). The cleaning roller (411) is rotatably connected to the sliding block (412). A sliding spring (413) is provided on the rotating frame (41). One end of the sliding spring (413) is connected to one side of the sliding block (412).

10. A production process for knitting weft-knitted suede fabric using the equipment described in claims 1 to 9, specifically comprising the following steps: S1: Using coffee charcoal fiber and base yarn as yarn raw materials, the yarn is first conveyed through the air blowing channel between the air blowing hood (12) and the dust suction hood (13) of the frame (11), while the elastic plate (21) rotates intermittently to push the yarn and remove impurities such as floating hair from the yarn. S2: The cleaned yarn is weft-knitted through the body of the circular knitting machine (1), and the needle density and knitting tension are controlled to form the basic fabric; S3: The greige fabric is washed, pre-shrinked, and brushed to create a uniform nap on the fabric surface. S4: After shaping and softening, the finished knitted weft-knitted suede fabric is obtained.

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