Knitting action component structure

Abstract

A knitting action component structure comprises a channel space (1) and related components: a needle plate assembly (2), a cam assembly (3) and a knitting tool (4). The knitting tool (4) is arranged in the needle plate assembly (2) facing the cam assembly (3) to form a channel space (1); wherein at least one cam assembly part (30) faces a needle plate assembly part (20) and a knitting tool part (40) to form a gradually enlarged channel space part (10); when related parts are manufactured, the product quality can be improved without additional equipment or complicated procedures; when a knitting machine is used for producing fabric, fabric pollution can be prevented without an additional energy consumption device, meanwhile, the heat dissipation performance is optimized, waste caused by defective products is reduced, and the service life of related parts is prolonged.

Description

Technical Field

[0001] The invention relates to a knitting action component structure, comprising a channel space and related components: a needle plate assembly, a cam assembly and a knitting tool. Background Art

[0002] In common knitting machines such as circular knitting machines and flat knitting machines, the knitting action is driven by the guide heel of the knitting tool moving back and forth along the groove in the cam guide groove area, so that the knitting tools arranged in the needle plate assembly move synchronously and interact with each other to interweave the yarns to produce fabrics.

[0003] There are many defects caused by knitting. Taking circular knitting machines as an example, high temperatures adversely affect the life and precision of related parts, and fabrics are often contaminated by residues such as oil and lint. These are two major challenges that the industry continues to face. WO2020079493A1 describes various types of fabric defects, such as oil defects, needle and sinker defects, and other fiber contamination.

[0004] TWI303284B discloses that pressurized air is forcefully blown toward the needle cylinder, needle groove, knitting needle and cam assembly through multiple nozzles to achieve the effect of removing lint and dissipating heat.

[0005] EP2067885B1 discloses a combined needle bed with fluid channels to remove dirt and prevent excessive lubricating oil from contaminating the fabric.

[0006] JP2000-8258A discloses that a surrounding cover plate is arranged outside the cam assembly to prevent external cotton wool from entering the knitting action part, and a cooling effect is achieved through the operation of the blower.

[0007] CN108026676B discloses a loop forming method, device and system assembly, wherein a pair of knitting tools are located in a groove of a needle plate assembly that is wider than the conventional design. By utilizing the time difference between adjacent knitting tools, or using a material with extremely low friction and / or self-lubricating properties (such as graphite or polytetrafluoroethylene) as a spacer, a self-cleaning and heat dissipation effect can be achieved.

[0008] The above technologies achieve the effect of reducing pollution and heat dissipation by increasing operating equipment or more complicated production processes, however, this also increases production costs and energy loads.

[0009] EP3947799B1 discloses the shape design of another part of the knitting tool, wherein the dirt in the groove near the loop formation is pushed to the inner edge of the needle bed and discharged, and the height of the knitting tool is equal to that of the needle plate assembly. JP2022085768A shows a double sinker structure, wherein the height of the knitting tool is greater than that of the needle plate assembly.

[0010] TWI639742B discloses that the extension surface from the front top to the rear top of the existing needle plate assembly is parallel to the bottom surface of the height reference line on the other side. WO2022128297A1 shows that the top and bottom surfaces of the knitting tool part and the cam assembly part are parallel to each other, and each has the same front and rear end height. EP4095297A1 shows that the cam assembly part in the conventional design is parallel to the needle plate assembly and the knitting tool part, forming a channel space part with two sides parallel to each other.

[0011] According to fabric quality requirements and production capacity needs, and taking into account the physical properties of thermal expansion, the current conventional height design of this channel space is about 0.20 mm. The high temperature generated by the inertia of the knitting movement continues to accumulate in this narrow space.

[0012] CN1974903A describes that the conventional clearance of the channel space is usually reduced to close to zero, and pressurized air is injected into the space to achieve cleaning and cooling effects.

[0013] CN201678816U discloses that the lubricating oil hole in the conventional cam guide groove design can also be used as an air passage, and air is injected from here to achieve a cooling effect on the channel space and its related components.

[0014] The above-mentioned technology of injecting compressed air into the channel space not only increases energy consumption, but also easily causes related components to introduce splashed oil into the fabric.

[0015] JP4454634B2 discloses contact points and surfaces where frictional heat is generated between a knitting tool and a needle plate assembly due to the inertia of the knitting action.

[0016] When the lubricating oil is released from the cam guide groove, since the front and rear ends of the needle plate assembly in the aforementioned traditional design are equal in height, under the action of the inertia of the knitting movement, the knitting tool produces parallel friction on the needle plate surface or its guide heel and the side angle of the needle plate produce vertical friction, causing the lubricating oil to be pulled and flow back and forth on these surfaces, continuously accumulating, and accompanied by other contaminants such as wear fibers moving along the knitting tool part to the loop forming part, thereby contaminating the fabric.

[0017] TWI560331B discloses the path of the lubricating oil after it is released and improves the shape design of the knitting tool to block the movement of contaminants to the loop forming area. Summary of the invention

[0018] Based on the above-mentioned technology, conventional design and knitting action inertia, the present invention proposes a knitting action component structure: when manufacturing related components, no additional equipment or complicated processes are required to improve product quality; when using a knitting machine to produce fabrics, no additional energy-consuming devices are required to prevent oil, lint and other objects from contaminating the fabrics, and at the same time optimize the heat dissipation efficiency, which helps to reduce waste caused by defective products and extend the service life of related components.

[0019] To achieve the above-mentioned purpose, the present invention proposes a knitting action component structure, including a channel space and related components: a needle plate assembly, a cam assembly and a knitting tool; the knitting tool is placed in the needle plate assembly, facing the cam assembly to form a channel space; wherein, at least one channel space portion is composed of a cam assembly portion facing a needle plate assembly portion and a knitting tool portion; these portions are bounded by a front end close to the loop forming portion and a rear end away from the loop forming portion; except for the cam guide groove area, the knitting tool guide heel section and the related parts of the maximum height and minimum height of the knitting tool portion, the channel space portion forms a gradually expanding space with non-parallel sides from the front end to the rear end, and the height difference of the rear end height of the channel space portion minus the front end height is at least 0.06 mm.

[0020] In the following embodiments, at least one relevant component has a height difference between the front end and the rear end, so that the two sides of a channel space portion are not parallel from the front end to the rear end.

[0021] In the first embodiment, the present invention combines a needle plate assembly part with an existing cam assembly part and an existing knitting tool part to form a channel space part, thereby increasing the resistance along the pollution path, making it more difficult for pollutants to move toward the loop forming part; in addition, the gradually expanding space also achieves better air guidance and heat dissipation effects.

[0022] In a second embodiment, the present invention combines a cam assembly part with an existing needle plate assembly part and an existing knitting tool part to form a channel space part, thereby reducing reverse obstruction along the contamination path and making it easier for contaminants to move downward away from the loop forming part; in addition, the gradually expanding space also realizes air diversion and improves heat dissipation.

[0023] In the third embodiment, the present invention combines a knitting tool part with an existing needle plate assembly part and an existing cam assembly part to form a channel space part, thereby increasing the reverse assist along the pollution path, making it easier for pollutants to move outward away from the loop forming part; in addition, the gradually expanding space also realizes air diversion and improves the heat dissipation effect.

[0024] In the fourth embodiment, each channel space portion is composed of the knitted action component structure of the present invention in the aforementioned embodiments. In addition to the significant self-cleaning effect, these larger gradually expanding spaces can also achieve better air guidance and more significant heat dissipation effects than the aforementioned embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The movement of the knitting tool 4 relative to the ground can be understood as Figure 1 and Figure 3 Move horizontally from left to right. Figure 2 Each part is defined by the front end being closer to the circle and the back end being farther away from the circle. Figure 1 The cross-sectional view of the first embodiment shows, from top to bottom, the conventional knitting tool 4, the conventional cam assembly 3, the needle plate assembly 2 of the present invention, and the channel space 1 formed thereby. During the knitting action, when a front edge 4A of the knitting tool is flush with a front edge 2A of the needle plate assembly, the guide heel section 43 of the knitting tool is relatively close to a rear end 332 of a cam guide groove area rather than the front end 331.

[0026] Figure 2 The cross-sectional view of the second embodiment shows, from top to bottom and from left to right, the conventional knitting tool 4, the cam assembly 3 of the present invention, the conventional needle plate assembly 2, and the passage space 1 formed thereby. During the knitting action, when a front edge 4A of the knitting tool is flush with a front edge 2A of the needle plate assembly, the guide heel section 43 of the knitting tool is relatively close to a rear end 332 of a cam guide groove area rather than the front end 331.

[0027] Figure 3 The cross-sectional view of the third embodiment shows, from top to bottom, 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. During the knitting action, when the front edge 4A of one knitting tool is flush with the front edge 2B of the other needle plate assembly, the guide heel section 43 of the knitting tool is relatively close to the rear end 332 of a cam guide groove area rather than the front end 331.

[0028] Figure 4 This is a schematic diagram of the fourth embodiment, which shows the above-mentioned Figures 1 to 3 The knitting action component structure of the present invention shown in the figure replaces the existing knitting action component structure and the related channel space 1 in the first, second and third embodiments. During the knitting action, as the knitting tool 4 moves from the rear to the front, causing the front edge 4A of the knitting tool to move away from the front edge 2A of the needle plate assembly or the front edge 2B of another needle plate assembly, the knitting tool guide heel section 43 is relatively close to the front end 331 of the cam guide groove area rather than the rear end 332.

[0029] In the figure: 1: channel space; 10: channel space part; 11: channel space part front end; 12: channel space part rear end; 2: needle plate assembly; 20: needle plate assembly part; 201: needle plate assembly part baseline; 21: needle plate assembly part front top; 22: needle plate assembly part rear top; 23: needle plate; 231: needle plate front reference surface; 232: needle plate rear reference surface; 2A: needle plate assembly front edge; 2B: another needle plate assembly front edge; 3: cam assembly; 30: cam assembly part; 301: cam assembly part baseline; 31: cam assembly part front top; 32: cam assembly part rear top; 33: cam guide groove area; 331: cam guide groove area front end; 332: cam guide groove area rear end; 34: cam; 340: slider groove; 35: slider; 36: cam seat; 360: cam seat slider groove; 4: knitting tool; 40: Knitting tool part; 401: Base line of knitting tool part; 41: Front top of knitting tool part; 42: Rear top of knitting tool part; 43: Guide heel section of knitting tool; 4A: Front edge of knitting tool; H10: Regular height of channel space part; H11: Front end height of channel space part; H12: Rear end height of channel space part; H20: Regular height of needle plate assembly part; H21: Front end height of needle plate assembly part; H22: Rear end height of needle plate assembly part; H30: Regular height of cam assembly part; H31: Front end height of cam assembly part; H32: Rear end height of cam assembly part; H351: Front end height of slider; H352: Rear end height of slider; H4: Maximum height of knitting tool part; H40: Minimum height of knitting tool part; H41: Front end height of knitting tool part; H42: Rear end height of knitting tool part. DETAILED DESCRIPTION

[0030] Figure 1 The first embodiment shown includes a needle plate assembly part 20 of the present invention, a conventional cam assembly part 30 and a conventional knitting tool part 40 to form a channel space part 10.

[0031] The knitting tool 4 is designed as a knitting needle including two guide heel sections 43, which correspond to two cam guide groove areas 33 respectively, and the knitting tool part 40 covers a maximum height H4 and a minimum height H40. In the conventional knitting tool part 40, a front end height H41 is equal to a rear end height H42, and except for the guide heel section 43, the maximum height H4 and the minimum height H40, the surface extending from the front top 41 to the rear top 42 is kept parallel to the knitting tool part base line 401 opposite thereto.

[0032] The cam assembly 3 includes a slider 35 and a cam seat 36 connected to a cam 34. The front top 31 and the rear top 32 of the cam assembly are formed by the two cams 34, and correspond to the front top 21 and the rear top 22 of the needle plate assembly respectively. In the existing cam assembly part 30, a front end height H31 is equal to the rear end height H32, and the extension surface from the front top 31 to the rear top 32 is parallel to the cam assembly part baseline 301 opposite thereto.

[0033] In the needle plate assembly 2, the needle plate 23 adopts the insert structure of TWI639742B to ensure accurate size and smooth outer surface, thereby eliminating the grinding and polishing process after assembly. In this needle plate assembly part 20, the front end height H21 is not equal to the rear end height H22, and the extension surface from the front top 21 to the rear top 22 is not parallel to the needle plate assembly part baseline 201 opposite to it. Here, the height difference invented is 0.08 mm, which can be achieved by designing the shape of the needle plate 23 and using general manufacturing processes (such as punching), or by designing the height difference of a needle plate front reference surface 231 and a rear reference surface 232 and using general manufacturing processes (such as lathe processing).

[0034] In the knitting operation under the above conditions, when the front edge 4A of a knitting tool is flush with the front edge 2A of the needle plate assembly, the position of the guide heel section 43 is relatively close to the rear end 332 of the cam guide groove area. If the front end height H11 of the space portion is equal to the conventional height H10 of 0.20 mm, the rear end height H12 is 0.28 mm. This indicates that the space from the front end 11 to the rear end 12 of the space portion gradually expands due to the non-parallel sides, and the height difference of the rear end height H12 of the space portion minus the front end height H11 is 0.08 mm.

[0035] The present invention proposes a knitting action component structure, in which the inclined surface of the needle plate assembly part 20 increases the forward resistance along the contaminant path, making it more difficult for the contaminant to approach the looping area. In addition, it also provides a reverse assist along the contaminant path, using the inertial friction during the knitting action to guide the contaminant to a lower surface, making it easier to stay away from the looping area. The pressure difference formed by the height change at both ends of the gradually expanding space can ensure airflow guidance, thereby achieving effective heat dissipation.

[0036] Figure 2 The second embodiment shown includes a cam assembly portion 30 of the present invention, a conventional needle plate assembly portion 20 and a conventional knitting tool portion 40 to form a channel space portion 10.

[0037] The knitting tool 4 is designed as a knitting needle including four guide heel sections 43, which correspond to four cam guide groove areas 33 respectively, and the knitting tool part 40 covers a maximum height H4 and a minimum height H40. In the conventional knitting tool part 40, a front end height H41 is equal to a rear end height H42, and except for the guide heel section 43, the maximum height H4 and the minimum height H40, the surface extending from the front top 41 to the rear top 42 is kept parallel to the knitting tool part base line 401 opposite thereto.

[0038] In the needle plate assembly 2, the needle plate 23 adopts the existing insert structure, and needs to undergo a grinding process after assembly to obtain a uniform outer surface. The front end height H21 of the needle plate assembly is equal to the rear end height H22, and the surface extending from the front top 21 to the rear top 22 remains parallel to the corresponding needle plate assembly baseline 201.

[0039] The cam assembly 3 can be manufactured using a common process, such as locking the cam 34 to the cam seat 36, or inserting the slider 35 into the cam seat slider groove 360 ​​on one side and the cam slider groove 340 on the other side to lock the cam 34, thereby facilitating the adjustment and movement of the entire cam assembly part 30.

[0040] This embodiment includes four cams 34 to form a cam assembly part 30, wherein the front top 31 and the rear top 32 of the cam assembly part correspond to the front top 21 and the rear top 22 of the needle plate assembly part respectively. The front end height H31 of the cam assembly part is not equal to the rear end height H32, and the surface extending from the front top 31 to the rear top 32 is not parallel to the relative cam assembly part baseline 301. Here, the invented height difference is 0.10 mm, which can be achieved by the stepped height difference design of each cam 34 corresponding to the front end height H351 of the slider to the rear end height H352, and can be realized by general manufacturing process (such as powder metallurgy).

[0041] In the knitting action under the above conditions, when the front edge 4A of a knitting tool is flush with the front edge 2A of the needle plate assembly, the position of the guide heel section 43 is relatively close to the rear end 332 of the cam guide groove area; if the front end height H11 of the space part is equal to the conventional height H10 of 0.20 mm, the rear end height H12 is 0.30 mm. This shows that the space from the front end 11 to the rear end 12 of the space part gradually expands due to the non-parallel sides, and the height difference of the rear end height H12 of the space part minus the front end height H11 is 0.10 mm.

[0042] The present invention provides a knitting action component structure, wherein the stepped height difference of the cam assembly portion 30 reduces the reverse obstruction along the pollution path to prevent the pollutants from adhering to and accumulating on the lower cam 34 when naturally moving downward. In addition, the pressure difference formed by the height change at both ends of the gradually expanding space can ensure airflow guidance, thereby achieving effective heat dissipation.

[0043] Figure 3 The third embodiment shown includes a knitting tool portion 40 of the present invention, a conventional needle plate assembly portion 20 and a conventional cam assembly portion 30 to form a channel space portion 10.

[0044] The knitting tool 4 is designed as a sinker including a guide heel section 43, corresponding to a cam guide groove area 33, and the knitting tool part 40 covers a maximum height H4 and a minimum height H40. The front end height H41 of the knitting tool part is equal to the rear end height H42. Except for the guide heel section 43, the maximum height H4 and the minimum height H40, the surface extending from the front top 41 of the knitting tool part to the rear top 42 is not parallel to the knitting tool part base line 401 opposite to it. Here, the height difference invented is 0.06 mm, which can be achieved by the shape design of the knitting tool 4 and by general manufacturing process (such as punching).

[0045] The needle plate assembly 2 is processed by a lathe to form a needle plate 23 by grooving, wherein the front end height H21 of the needle plate assembly is equal to the rear end height H22, and the surface extending from the front top 21 to the rear top 22 remains parallel to the corresponding needle plate assembly baseline 201.

[0046] The cam assembly 3 includes a cam 34 directly locked on a cam seat 36, and the front top 31 and the rear top 32 of the cam assembly part correspond to the front top 21 and the rear top 22 of the needle plate assembly part respectively. In the existing cam assembly part 30, a front end height H31 is equal to the rear end height H32, and the extension surface from the front top 31 to the rear top 32 is kept parallel to the cam assembly part base line 301 opposite thereto.

[0047] In the knitting operation under the above conditions, when the front edge 4A of a knitting tool is flush with the front edge 2A of the needle plate assembly, the position of the guide heel section 43 is relatively close to the rear end 332 of the cam guide groove area. If the front end height H11 of the space portion is equal to the conventional height H10 of 0.20 mm, the rear end height H12 is 0.26 mm. This indicates that the space from the front end 11 to the rear end 12 of the space portion gradually expands due to the non-parallel sides, and the height difference of the rear end height H12 of the space portion minus the front end height H11 is 0.06 mm.

[0048] The present invention proposes a knitting action component structure, in which the inclined surface of the knitting tool part 40 increases the forward resistance along the contamination path, making it more difficult for the contaminants to approach the looping area. In addition, it also provides a reverse assist along the contaminant path, using the inertial friction during the knitting action to guide the contaminants to a lower surface, making it easier to stay away from the looping area. The pressure difference formed by the height change at both ends of the gradually expanding space can ensure airflow guidance, thereby achieving effective heat dissipation.

[0049] Figure 4 The fourth embodiment shown is to change the existing structure of the aforementioned embodiments into the knitting action component structure of the present invention, thereby forming each channel space part 10.

[0050] In the knitting action under the above conditions, when the knitting tool 4 moves from the back to the front, and its knitting tool front edge 4A moves away from the front edge 2A of the needle plate assembly or the front edge 2B of the other needle plate assembly, the guide heel section 43 is relatively close to the front end 331 of the cam guide groove area, and the knitting tool part 40 also moves relatively. If the front end height H11 of the space part is equal to the conventional height H10 of 0.20 mm, the rear end height H12 thereof varies from 0.26 mm to 0.38 mm in different embodiments, which indicates that the space from the front end 11 to the rear end 12 of the space part gradually expands due to the non-parallel sides, and the height difference of the rear end height H12 of the space part minus the front end height H11 varies from 0.06 mm to 0.18 mm.

[0051] Compared with the previous three embodiments, the present invention proposes a knitting action component structure, in which the inclined surfaces of the needle plate assembly part 20 and the knitting tool part 40 optimize the forward resistance of the contaminants toward the loop forming part and the backward assistance away from the loop forming part, and further utilize the inertial friction of the knitting action to accelerate the removal of contaminants to achieve a self-cleaning effect. In addition, when combined with the cam assembly part 30, a larger gradually expanding space and a larger pressure difference can be formed, further achieving more significant air diversion and more optimized effective heat dissipation.

Claims

1. A knitting action component structure, characterized in that: The invention comprises a channel space (1), a needle plate assembly (2), a cam assembly (3) and a knitting tool (4); the knitting tool (4) is placed in the needle plate assembly (2) and faces the cam assembly (3) to form a channel space (1); wherein, there is at least one channel space portion (10), which is composed of a cam assembly portion (30) facing a needle plate assembly portion (20) and a knitting tool portion (40); the cam assembly portion (30), the needle plate assembly portion (20) and the knitting tool portion (40) are bounded by a front end close to the loop forming portion and a rear end away from the loop forming portion; except for a cam guide groove area (33), a knitting tool guide heel section (43) and a portion thereof with a maximum height (H4) and a minimum height (H40), the channel space portion forms a gradually expanding space with two sides not parallel to each other from the front end (11) to the rear end (12); wherein the height difference of the rear end height (H12) of a channel space portion minus the front end height (H11) is at least 0.06 mm.

2. The knitting action component structure according to claim 1, characterized in that: The height difference between the front end height (H21) and the rear end height (H22) of the needle plate assembly is at least 0.06 mm.

3. The knitting action component structure according to claim 1, characterized in that: The height difference between the front end height (H31) and the rear end height (H32) of the cam assembly is at least 0.06 mm.

4. The knitting action component structure according to claim 1, characterized in that: The height difference between the front end height (H41) and the rear end height (H42) of a knitting tool portion is at least 0.06 mm.

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