Knitting action part structure

Abstract

To provide a knitting action part structure that prevents stain and dust on a fabric and optimizes heat dissipation performance without requiring an additional energy consumption device when manufacturing the fabric with a knitting machine.SOLUTION: A knitting action part structure includes a passing space (1) and related components, a needle wall assembly (2), a cam assembly (3), and a knitting tool (4). The knitting tool (4) is disposed in the needle wall assembly (2) and faces the cam assembly (3) so as to form the passing space (1). At least one cam assemble site (30) faces a needle wall assembly site (20) and a knitting tool site (40) so as to form a passing space site (10) so as to be gradually extended. Consequently, when a fabric is manufactured by a knitting machine, the knitting action part structure prevents stain and dust on the fabric and optimizes heat dissipation performance without requiring an additional energy consumption device, therefore, waste due to defective product is reduced and a service life of the related components is extended.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] This disclosure relates to an action parts structure of a knitting machine comprising a passage space (1) and related parts, and more particularly to an action parts structure of a knitting machine including a needle wall assembly (2), a cam assembly (3), and a knitting tool (4). [Background technology]

[0002] In typical knitting machines, such as circular or flat knitting machines, the knitting action is driven by a guide butt of knitting tools, which reciprocate along a groove in the guide section of a cam, synchronously moving and interacting with the knitting tools located within the needlewall assembly, resulting in interlacing of yarns to create the fabric.

[0003] Among the many defects caused by the knitting action, taking circular knitting machines as an example, the two major problems that the industry has consistently faced are the adverse effect of high temperatures on the life and precision of related parts, and the contamination of fabrics with residues such as oil stains and lint. WO2020079493A1 describes various types of fabric defects, including defects caused by oil stains, defects caused by needles and sinkers, and contamination by other fibers.

[0004] In TWI303284B, it is shown that compressed air is powerfully blown through multiple nozzles and directed towards the needle cylinder, needle groove, knitting needle and cam assembly to achieve the effect of dust removal and heat dissipation.

[0005] EP2067885B1 discloses a combined needle bed with fluid passages that can remove accumulated dirt and prevent excess lubricant from contaminating the fabric.

[0006] JP2000-8258A discloses that a cover plate is provided on the outside of the cam assembly to cover the periphery, thereby preventing dust from the outside from entering the knitting action portion, and a cooling effect is achieved by operating a blower.

[0007] CN108026676B discloses a molding method, apparatus, and system components, in which paired knitting tools are placed in a wider recess of a needle plate assembly than in conventional designs. By utilizing the timing difference between the movements of adjacent knitting tools, or by using a material with a very low friction coefficient and self-lubricating properties (e.g., graphite or PTFE) as a separator, the self-cleaning and heat dissipation effect can be achieved.

[0008] The aforementioned technologies achieve the effects of reducing pollution and dissipating heat by adding operating equipment and more complicated production processes, which increases production costs and energy consumption.

[0009] EP3947799B1 shows a shape design of another part of the knitting tool, which is designed so that dirt in the groove close to the forming zone is pushed to the inner edge of the needle bed and eliminated, and the height of the knitting tool and the height of the needle plate assembly are equal. JP2022085768A shows a double sinker structure in which the height of the knitting tool part is greater than the height of the needle plate assembly part.

[0010] TWI639742B shows that the extension surface from the front end to the rear end of the conventional needle plate assembly is parallel to the reference bottom surface which serves as the height reference line on the other side. WO2022128297A1 shows a conventional design in which the top and bottom surfaces of the knitting tool section and the cam assembly section are parallel to each other and have the same height at the front and rear ends. EP4095297A1 shows that in the conventional design, the cam assembly section is parallel to the needle plate assembly section and the knitting tool section, forming a passage space section with parallel sides to each other.

[0011] Based on the quality requirements of the fabric and the needs of production capacity, and taking into account the physical properties of thermal expansion, the current design of the passage space usually has a height of about 0.20 mm. In this narrow space, high temperatures are continuously accumulated due to the inertia caused by the knitting action.

[0012] CN1974903A shows that the normal gap at the passage space portion is reduced to almost zero, and compressed air is injected into this space to achieve the cleaning and cooling effect.

[0013] CN201678816U shows that the lubricating oil hole in the traditional cam guide groove design can also be used as an air passage, through which air can be blown out to achieve the cooling effect of the passage space and related parts.

[0014] The above-mentioned technique of injecting compressed air into the passage space not only increases energy consumption, but also has the potential to cause oil stains from the associated parts to be carried onto the fabric.

[0015] JP4454634B2 identifies contact points and surfaces where the inertia of the knitting action creates heat due to friction between the knitting tool area and the needle wall assembly area.

[0016] After the lubricant is released from the cam guide groove, due to the above-mentioned known design, the front and rear ends of the needle plate assembly are at the same height, so that the inertia of the weaving action causes the knitting tool to rub parallel to the needle plate surface, or the guide butt segments of the knitting tool to rub perpendicularly at the side angles of the needle plate. This causes the lubricant to be attracted to these surfaces and bounce back and forth, resulting in continuous accumulation. Also, other contaminants such as worn fibers migrate along the knitting tool parts toward the loop formation zone, resulting in fabric contamination.

[0017] TWI560331B shows improvements to the geometric design of the knitting tool to clarify the path of the lubricant after it is released and to block contaminants moving towards the loop formation zone. [Prior art documents] [Patent documents]

[0018] [Patent Document 1] WO2020079493A1 [Patent Document 2] TWI303284B [Patent Document 3] EP2067885B1 [Patent Document 4] JP2000-8258A [Patent Document 5] CN108026676B [Patent Document 6] EP3947799B1 [Patent Document 7] JP2022085768A [Patent Document 8] TWI639742B [Patent Document 9] WO2022128297A1 [Patent Document 10] EP4095297A1 [Patent Document 11] CN1974903A [Patent Document 12] CN201678816U [Patent Document 13] JP4454634B2 [Patent Document 14] TWI560331B Summary of the Invention [Problem to be solved by the invention]

[0019] The present invention relates to a structure of a weaving motion part proposed based on the above-mentioned technology, the conventional design, and the inertia of the weaving motion. It can improve the product quality without requiring additional equipment or complicated processing procedures when manufacturing related parts. In addition, when using a knitting machine to produce fabric, it can protect the fabric from contaminants such as oil stains and lint without requiring additional energy consuming devices, and optimize the heat dissipation performance, thereby reducing waste caused by defective products and extending the service life of related parts. [Means for solving the problem]

[0020] In order to achieve the above-mentioned objective, the present invention provides a structure of a weaving operation part including a passage space and related parts, including a needle plate assembly, a cam assembly, and a knitting tool. The knitting tool is disposed in the needle plate assembly and forms a passage space toward the cam assembly. In the passage space, at least one passage space portion is formed by a cam assembly portion relative to the needle plate assembly portion and the knitting tool portion, and these portions are bounded by a front end close to the completion circle portion and a rear end far from the completion circle portion. Except for the cam guide groove section, the knitting tool guide butt segment, and the maximum height and minimum height portions of the knitting tool portion, the passage space portion forms a gradually expanding space with non-parallel sides from the front end to the rear end, and the height difference is 0.06 mm or more.

[0021] In the following embodiments, at least one associated component has a front end and a rear end at different heights, such that the sides of the passage space are not parallel from front to rear. Effect of the Invention

[0022] In a first embodiment, the present invention combines a needle plate assembly section with a conventional cam assembly section and a conventional knitting tool section to form a passage space section, which increases the resistance along the contaminant movement path, making it difficult for the contaminant to move toward the loop formation zone. Furthermore, the gradually expanding space provides a proper air flow guidance and heat dissipation effect. In a second embodiment, the present invention combines a cam assembly section with a conventional needle plate assembly section and a conventional knitting tool section to form a passage space section, which reduces the backflow obstacle along the contaminant movement path and makes it easier for the contaminant to move farther down from the loop formation zone. Moreover, the gradually expanding space provides a proper air flow guidance and heat dissipation effect.

[0023] In a third embodiment, the present invention combines the knitting tool section with the conventional needle plate assembly section and the conventional cam assembly section to form a passage space section, which can increase the backflow support along the contaminant migration path and facilitate the contaminant migration outward from the loop formation zone. Furthermore, the gradually expanding space can provide a proper airflow guidance and heat dissipation effect.

[0024] In the fourth embodiment, each of the air passage spaces is constructed according to the inventive knitting structure of the previous embodiments, so that in addition to the significant self-cleaning effect, these larger gradually expanding spaces provide better airflow guidance and more effective heat dissipation than the previous embodiments. [Brief description of the drawings]

[0025] The movement of the knitting tool 4 relative to the ground is understood to be horizontal left and right movement relative to the ground in Figures 1 and 3, and vertical up and down movement relative to the ground in Figure 2. The "front end" and "rear end" of each part are defined as the side closer to the formation circle (loop formation zone) as the front end and the side farther from the formation circle as the rear end. In each drawing, when the leading edge (4A) of the knitting tool is flush with the leading edge (2A) of the needle plate assembly or the leading edge (2B) of another needle plate assembly, the area extending from the leading end (31) to the rear end (32) of the cam assembly portion of the cam assembly (3) is defined as the cam assembly portion (30). The corresponding area range from the front apex (21) to the rear apex (22) of the needle plate assembly portion of the needle plate assembly (2) is defined as the needle plate assembly portion (20). Furthermore, the area range from the front apex end (41) to the rear apex end (42) of the corresponding knitting tool part of the knitting tool (4) is defined as the knitting tool part (40). [Figure 1]1 shows a cross-sectional view of the first embodiment, which is arranged from top to bottom in the order of a conventional knitting tool 4, a conventional cam assembly 3, a needle plate assembly 2 of the present invention, and a passage space 1 formed thereby. During the knitting process, when the front edge 4A of the knitting tool coincides with the front edge 2A of the needle plate assembly, the knitting tool guide butt segment 43 is relatively close to the rear end 332 of the cam guide groove section and relatively far from the front end 331. [Diagram 2] 1 shows a cross-sectional view of the second embodiment, which is arranged from top to bottom and left to right, in that order, a conventional knitting tool 4, a cam assembly 3 of the present invention, a conventional needle plate assembly 2, and a passage space 1 formed thereby. During the knitting process, when the front edge 4A of the knitting tool coincides with the front edge 2A of the needle plate assembly, the guide butt segment 43 of the knitting tool is relatively close to the rear end 332 of the guide groove section of the cam and relatively far from the front end 331. [Diagram 3] 1 shows a cross-sectional view of the third embodiment, which is arranged from top to bottom, in which the knitting tool 4 of the present invention, the conventional cam assembly 3, the conventional needle plate assembly 2, and the passage space 1 formed thereby are arranged. During the knitting operation, when the front edge 4A of the knitting tool coincides with the front edge 2B of another needle plate assembly, the guide butt segment 43 of the knitting tool is relatively close to the rear end 332 of the guide groove section of the cam and relatively far from the front end 331. [Figure 4] 1 to 3, and replaces the conventional knitting parts of the first, second and third embodiments and the passage space 1 formed thereby. During the knitting process, when the knitting tool 4 moves from rear to front and its front edge 4A moves away from the front edge 2A of the needle plate assembly or the front edge 2B of another needle plate assembly, the guide butt segment 43 of the knitting tool is relatively close to the front end 331 of the guide groove section of the cam and relatively far from the rear end 332.

[0026] The first embodiment shown in FIG. 1 illustrates a passageway region 10 comprised of a needle plate assembly region 20 of the present invention, a conventional cam assembly region 30, and a conventional knitting tool region 40. As shown in FIG. Here, when the leading edge (4A) of the knitting tool is flush with the leading edge (2A) of the needle plate assembly or the leading edge (2B) of another needle plate assembly, the area extending from the leading end (21) to the rear end (22) of the needle plate assembly site of the needle plate assembly (2) is defined as the needle plate assembly site (20). Similarly, the area ranging from the front apex (31) to the rear apex (32) of the cam assembly portion of the cam assembly (3) is defined as the cam assembly portion (30). Furthermore, the area range from the front apex end (41) to the rear apex end (42) of the knitting tool part of the knitting tool (4) is defined as the knitting tool part (40).

[0027] The knitting tool 4 is a knitting needle having two guide butt segments 43, each corresponding to the guide groove sections 33 of the two cams. The knitting tool part 40 is Knitting tool parts Maximum height H4 and Knitting tool parts Including minimum height H40 nothing In the conventional knitting tool portion 40, Knitting tool parts Front end height H41 Knitting tool parts The rear end height H42 is equal to the knitting tool guide butt segment 43, Knitting tool parts Maximum height H4, Knitting tool parts Minimum height H40 Department Except for minutes, Knitting tool parts From the anterior apex 41 Knitting tool parts The surface extending to the rear apex end 42 remains parallel to the opposing knitting tool section reference line 401 . The cam assembly 3 is configured by connecting a slider 35 to a cam 34 and a cam box 36. The cam assembly portion formed by the two cams 34 of Anterior apex 31 and Cam assembly area The rear end 32 is a needle plate assembly site. of Anterior apex 21 and Needle plate assembly area The rear apex 22 corresponds to the rear apex 22. In the conventional cam assembly portion 30, Cam assembly area Front end height H31 Cam assembly area Equal to rear end height H32, Cam assembly area From the anterior apex 31 Cam assembly area The surface extending to the rear apex 32 remains parallel to the opposing cam assembly portion reference line 301 .

[0028] The needle plate 23 of the needle plate assembly 2 adopts an insert structure based on patent TWI639742B, and since it ensures precise dimensions and a smooth outer surface, no grinding or polishing process is required after assembly. In this needle plate assembly part 20, Needle plate assembly area Front end height H21 Needle plate assembly area Does not match rear end height H22 Needle plate assembly area From the anterior apex 21 Needle plate assembly area The surface extending to the rear apex 22 is not parallel to the facing needle plate assembly site reference line 201. do not have The height difference shown here is 0.08 mm, and this height difference can be realized in a general manufacturing process (e.g., punch press processing) by the shape design of the needle plate 23, or can be realized in a general manufacturing process (e.g., lathe processing) by the height difference design of the front reference surface 231 and the rear reference surface 232 of the needle plate.

[0029] In this embodiment, the cam assembly portion (30) is combined with the needle plate assembly portion (20) and the knitting tool portion (40) to jointly form the passage space portion (10), but the passage space portion (10) does not include the cam guide groove region (33), the knitting tool guide heel portion (43), the knitting tool portion maximum height (H4), and the knitting tool portion minimum height (H40). During knitting action under the above conditions, when the knitting tool leading edge 4A is aligned with the needle plate assembly leading edge 2A, the knitting tool guide butt segment 43 is located relatively close to the cam guide groove rear end 332. Where: The front end height H11 of the passage space part is Passage space area If the standard height H10 is equal to 0.20 mm, the rear end height H12 of the passage space portion is 0.28 mm. In the passage space portion (10), From the front end 11 of the passage space Passage space area The space gradually expands toward the rear end 12 because the two sides are not parallel. of From rear height H12 Passage space area This shows that the height difference minus the front end height H11 is 0.08 mm.

[0030] This disclosure proposes a component structure for the weaving operation, in which the inclined surface of the needle plate assembly portion 20 increases the forward resistance along the contaminant's travel path, making it difficult for the contaminant to approach the loop formation zone. Furthermore, this structure utilizes the inertial friction in the weaving operation to provide a retreating force for the contaminant to move toward the lower surface, helping the contaminant to move away from the loop formation zone. Furthermore, the pressure difference formed by the height difference at both ends of the gradually expanding space portion ensures proper airflow induction and realizes effective heat dissipation.

[0031] The second embodiment shown in FIG. 2 illustrates a passageway region 10 comprised of a cam assembly region 30 of the present invention, a conventional needle plate assembly region 20, and a conventional knitting tool region 40. As shown in FIG. Here, when the leading edge (4A) of the knitting tool is flush with the leading edge (2A) of the needle plate assembly or the leading edge (2B) of another needle plate assembly, the area range from the leading end (21) to the trailing end (22) of the needle plate assembly part of the needle plate assembly (2) is defined as the needle plate assembly part (20). Similarly, the area range from the leading end (31) to the trailing end (32) of the cam assembly part of the cam assembly (3) is defined as the cam assembly part (30). Furthermore, the area range from the leading end (41) to the trailing end (42) of the knitting tool part of the knitting tool (4) is defined as the knitting tool part (40).

[0032] The knitting tool 4 is a knitting needle having four guide butt segments 43, each corresponding to the guide groove sections 33 of the four cams. The knitting tool part 40 is Knitting tool parts Maximum height H4 and Knitting tool parts Including minimum height H40 nothing In the conventional knitting tool portion 40, Knitting tool parts Front end height H41 Knitting tool parts The guide butt segment 43 is equal to the rear end height H42. Knitting tool parts Maximum height H4, Knitting tool parts Minimum height H40 Department Except for minutes, Knitting tool parts From the anterior apex 41 Knitting tool parts The surface up to the rear apex 42 remains parallel to the opposing knitting tool portion reference line 401 .

[0033] In this needle plate assembly 2, the needle plate 23 adopts a conventional insert piece structure and needs to be polished after assembly to obtain a uniform outer surface. The front end height H21 of the needle plate assembly part 20 is Needle plate assembly area Equal to rear end height H22, Needle plate assembly area From the anterior apex 21 Needle plate assembly areaThe surface up to the rear apex 22 remains parallel to the opposing needle plate assembly site datum line 201 .

[0034] This cam assembly 3 can employ a method of locking the cam 34 to the cam box 36 according to a general manufacturing method, or a method of inserting the slider 35 into the cam box slider groove 360 ​​on one side and inserting it into the cam slider groove 340 on the other side to lock the cam 34. This makes it easy to adjust and move the entire cam assembly part 30.

[0035] In this embodiment, there is a cam assembly portion 30 that is made up of four cams 34, the front end 31 of the cam assembly portion and the rear end 32 of the cam assembly portion. Cam assembly area The posterior apical ends 32 correspond to the anterior apical ends 21 and posterior apical ends 22 of the needle plate assembly sites, respectively. In this region, the cam assembly portion (30) and the needle plate assembly portion (20) are combined to jointly form the passage space portion (10). However, the passage space portion (10) does not include the cam guide groove region (33), the knitting tool guide heel portion (43), the maximum height (H4) of the knitting tool portion, and the minimum height (H40) of the knitting tool portion. The front end height H31 of the cam assembly part is Cam assembly area Unlike the rear end height H32, Cam assembly area From the anterior apex 31 Cam assembly area The surface extending to the rear apex 32 is not parallel to the opposing cam assembly site reference line 301. The height difference disclosed here is 0.10 mm, which is the height difference between the slider and each cam 34. of From front end height H351 Slider This is achieved by designing a stepped height difference up to a rear end height of H352, and can be realized by common manufacturing methods such as powder metallurgy.

[0036] During the knitting operation under the above conditions, when the front edge 4A of the knitting tool coincides with the front edge 2A of the needle plate assembly, the position of the guide butt segment 43 is relatively close to the rear end 332 of the cam guide groove. of If the front end height H11 is equal to the standard height H10 of 0.20 mm, Passage space area The height H12 of the rear end is 0.30 mm. of From the front end 11 Passage space area The space toward the rear end 12 gradually widens because the two sides are not parallel. of From rear height H12 Passage space area The value subtracted by the front end height H11 is 0.10 mm.

[0037] This disclosure proposes a component structure for weaving action, in which the stepped height difference of the cam assembly section 30 reduces the backward obstacle along the path of the contaminants and prevents them from adhering and accumulating on the lower cam 34 as they naturally move downward. Furthermore, the pressure difference created by the height difference at both ends of the gradually expanding space section ensures proper airflow guidance and achieves effective heat dissipation.

[0038] The third embodiment shown in FIG. 3 illustrates a passage space section 10 comprised of a knitting tool section 40 of the present invention, a conventional needle plate assembly section 20, and a conventional cam assembly section 30. As shown in FIG. Here, when the front edge (4A) of the knitting tool is flush with the front edge (2A) of the needle plate assembly or the front edge (2B) of another needle plate assembly, the area range from the front top end (21) of the needle plate assembly part of the needle plate assembly (2) to the rear top end (22) of the needle plate assembly part is defined as the needle plate assembly part (20). Similarly, the area range from the front top end (31) of the cam assembly part of the cam assembly (3) to the rear top end (32) of the cam assembly part is defined as the cam assembly part (30). Furthermore, the area range from the front top end (41) of the knitting tool part of the knitting tool (4) to the rear top end (42) of the knitting tool part is defined as the knitting tool part (40).

[0039] The knitting tool 4 is designed as a sinker including a guide butt segment 43, which corresponds to the cam guide groove 33. The knitting tool part 40 is Knitting tool parts Maximum height H4 and Knitting tool parts The minimum height H40 is included in the conventional knitting tool portion 40. Knitting tool parts Front end height H41 Knitting tool parts It does not match the rear end height H42. Knitting tool parts From the anterior apex 41 Knitting tool parts The surface extending to the rear apex 42 is not parallel to the opposing knitting tool portion reference line 401. The height difference shown here is 0.06 mm, which is achievable in a typical manufacturing process (e.g., pressing) depending on the shape design of the knitting tool 4.

[0040] The needle plate assembly 2 is turned on a lathe and grooved to form the needle plate 23. The front end height H21 of the needle plate assembly portion is Needle plate assembly area Equal to rear end height H22, Needle plate assembly area From the anterior apex 21 Needle plate assembly area The surface extending to the rear apex 22 remains parallel to the opposing needle plate assembly site datum line 201 .

[0041] The cam assembly 3 has a structure in which the cam 34 is directly fixed to the cam box 36. Cam assembly part 30 The rear end 32 is a needle plate assembly site. of Anterior apex 21 and Needle plate assembly area The rear apex 22 corresponds to the rear apex 22. In the conventional cam assembly portion 30, Cam assembly area Front end height H31 Cam assembly area Equal to rear end height H32, Cam assembly area From the anterior apex 31 Cam assembly area The surface up to the rear apex 32 remains parallel to the opposing cam assembly portion reference line 301 .

[0042] In this embodiment, the cam assembly portion 30, in combination with the needle plate assembly portion 20 and the knitting tool portion 40, jointly forms the passage space portion 10. However, the passage space portion 10 does not include the cam guide groove portion 33, the knitting tool guide butt segment 43, the maximum height of the knitting tool portion 40 (H4), and the minimum height of the knitting tool portion 40 (H40). During knitting under the above conditions, when the leading edge 4A of the knitting tool coincides with the leading edge 2A of the needle plate assembly, the position of the guide butt segment 43 is relatively close to the rear end 332 of the cam guide groove. Where: If the front end height H11 of the passage space is 0.20 mm Passage space area If it is equal to the standard height H10, Passage space area rear end high The height H12 is 0.26 mm. In the passage space area, From the front end 11 of the passage space Passage space area The space toward the rear end 12 gradually widens because the two sides are not parallel. of From rear height H12 Passage space area The value subtracting the front end height H11 is 0.06 mm.

[0043] This disclosure proposes a component structure for the weaving action, in which the inclined surface of the weaving tool section 40 increases the forward resistance to the path of the contaminants, making it difficult for the contaminants to approach the loop formation zone. In addition, the inertial friction of the weaving action is used to help the contaminants retreat, guiding them towards lower surfaces and facilitating them away from the loop formation zone. Also, the pressure difference created by the height difference at both ends of the gradually expanding space section ensures proper airflow guidance and achieves effective heat dissipation.

[0044] In the fourth embodiment shown in FIG. 4, the conventional structure in each of the above-mentioned embodiments is changed to the knitting operation part structure of the present invention, thereby forming each passage space portion 10.

[0045] During the knitting operation under the above conditions, when the knitting tool 4 moves from the rear to the front and its front edge 4A moves away from the front edge 2A of the needle plate assembly or the front edge 2B of another needle plate assembly, the guide butt segment 43 relatively approaches the cam guide groove front end 331, and the knitting tool portion 40 also moves relatively. of If the front end height H11 is equal to the standard height H10 of 0.20 mm, Passage space area The height H12 of the rear end ranges from 0.26 mm to 0.38 mm in different embodiments. Passage space area The space towards the rear end 12 gradually widens because the sides are not parallel. of From rear height H12 Passage space area The value subtracting the front end height H11 is in the range of 0.06 mm to 0.18 mm.

[0046] Compared with the above three embodiments, this disclosure proposes a component structure for knitting operation, in which the inclined surfaces of the needle plate assembly portion 20 and the knitting tool portion 40 optimize the forward resistance of contaminants to the loop formation zone and provide rearward assistance. The inertial friction during knitting operation accelerates the removal of contaminants, achieving a self-cleaning effect. Moreover, combined with the cam assembly portion 30, a gradually expanding space with a larger pressure difference is formed, which realizes more significant airflow induction and more optimized heat dissipation.

[0047] The above description uses schematic diagrams of manufacturing methods commonly used in the art and are well understood by those skilled in the art. Modifications and variations made based on the contents of this disclosure are considered to be within the scope and spirit of the present invention.

[0048] 1: Passageway space 10: Passage space part 11: Front end of passageway space 12: Posterior end of passageway space 2: Needle Plate Assembly 20: Needle plate assembly area 201: Needle plate assembly reference line 21: Apical anterior end of needle plate assembly site 22: Apical end after needle plate assembly site 23: Needle plate 231: Needle plate front reference surface 232: Needle plate rear reference surface 2A: Needle plate assembly leading edge 2B: Another needle plate assembly leading edge 3: Cam assembly 30: Cam assembly part 301: Cam assembly reference line 31: Front end of cam assembly 32: Apical end of cam assembly 33: Cam guide groove 331: Cam guide groove front end 332: Cam guide groove rear end 34: Cam 340: Cam slider groove 35: Slider 36: Cambox 360: Cam box slider groove 4: Knitting tools 40: Knitting tool parts 401: Knitting tool part reference line 41: Front tip of knitting tool part 42: Back apex of knitting tool part 43: Knitting tool guide butt segment 4A: Knitting tool front edge H10: Standard height of passageway space H11: Height of front end of passageway space H12: Height of rear end of passageway space H21: Height of the front tip of the needle plate assembly H22: Apical height after needle plate assembly H 31: Cam assembly front end height H32: Height of rear tip of cam assembly H351: Slider front height H352: Slider rear end height H4: Maximum height of knitting tool part H40: Minimum height of knitting tool part H41: Height of front end of knitting tool H42: Height of rear tip of knitting tool

Claims

1. The knitting machine includes a passage space (1) and a needle plate assembly (2), a cam assembly (3), and a knitting tool (4) that form the passage space (1); The knitting tool (4) is disposed in the needle plate assembly (2) and faces the cam assembly (3) to form the passage space (1); At least one passage space portion (10) is defined by a cam assembly portion (30) facing a needle plate assembly portion (20) and a knitting tool portion (40), the portions having a front end proximate to the loop forming zone and a rear end remote therefrom; the space from the front end (11) to the rear end (12) of said passage space portion, except for the cam guide groove portion (33), the knitting tool guide butt segment (43), and the associated portions of the maximum height (H4) and minimum height (H40) of the knitting tool portion, forms a gradually expanding space having non-parallel sides; A knitting operation component structure, characterized in that a height difference obtained by subtracting a front end height (H11) from a rear end height (H12) of the passage space portion is 0.06 mm or more.

2. The knitting operation component structure according to claim 1, characterized in that a height difference obtained by subtracting a rear end height (H22) from a front end height (H21) of the needle plate assembly part is 0.06 mm or more.

3. 2. The knitting motion component structure according to claim 1, wherein a height difference between the front end height (H31) and the rear end height (H32) of the cam assembly part is 0.06 mm or more.

4. 2. The knitting motion component structure according to claim 1, characterized in that the height difference obtained by subtracting the rear end height (H42) from the front end height (H41) of the knitting tool part is 0.06 mm or more.

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