Aluminium triangular seat structure for a circular knitting machine

Abstract

The application discloses a knitting circular machine aluminum triangular seat structure and relates to the technical field of knitting machines.The triangular seat body of the application adopts an L-shaped integral structure, is integrally formed by using 6 or 7 series aviation aluminum alloy, does not need to be provided with traditional heat dissipation holes, and realizes efficient heat dissipation by relying on the high heat conduction characteristic of the material and the optimized wall thickness structure; the top cover plate is blocked, the three-section type limiting sliding groove and the semi-open type circulating lubrication structure are used, so that the lint is prevented from entering the sliding groove and being accumulated, and the friction and wear of the parts are reduced; the bottom U-shaped groove is matched with the nested positioning structure of the avoiding position, the installation and positioning precision and the structural rigidity under the high-speed working condition are improved, and the inclined countersunk assembly hole is matched, so that the installation and maintenance operation is simplified.The application greatly improves the heat dissipation efficiency and the operation stability of the triangular seat, effectively avoids the needle clamping, needle breaking and equipment shutdown failure, reduces the energy consumption and the maintenance cost of the equipment, guarantees the knitting precision and the production yield of the knitted fabric, and is suitable for being matched with various high-speed knitting circular machines.

Description

Technical Field

[0001] This invention relates to the field of knitting machinery technology, and in particular to an aluminum triangular seat structure for a circular knitting machine. Background Technology

[0002] Circular knitting machines (commonly known as large circular knitting machines) are core equipment in the textile industry for producing knitted fabrics. During operation, the camshaft, as a key support and guide component of the knitting mechanism, directly determines the quality of the knitted fabric and the stability of the equipment. Traditional circular knitting machine camshafts are typically made of cast iron. While cast iron offered advantages in wear resistance and cost in the early days, the increasing demands of modern textile industries for high output, high speed, high precision, and energy conservation have revealed numerous insurmountable technical limitations in traditional cast iron camshafts.

[0003] First, poor heat dissipation is the primary problem faced by traditional cast iron cam sets. In high-speed circular knitting machines, the high-speed friction between the knitting needles and the grooves inside the cam set generates a large amount of heat. Cast iron has a low thermal conductivity, making it difficult for the heat to dissipate quickly. The heat accumulation inside the cam set causes thermal expansion of the steel knitting needles, thus accelerating wear and, in severe cases, even leading to needle jamming or breakage, significantly reducing the production efficiency of the equipment and the yield of the fabric. The traditional solution is usually to create numerous ventilation holes on the cam set body to increase the air convection area, but this leads to a second problem: yarn lint clogging.

[0004] In actual production workshops, a large amount of cotton lint, yarn fibers, and fly dander are inevitably generated during the textile process. These fine fibers floating in the air are easily drawn in by the airflow and adhere to the heat dissipation holes of the triangular knitting machine's camshaft. Over time, the heat dissipation holes become completely blocked by the lint, causing the heat dissipation function to fail. At the same time, the drawn-in lint will also enter the slide groove along with the knitting needles, mixing with the heat-conducting oil to form oily sludge, which aggravates the wear of the slide groove and may even cause the knitting needles to jam, resulting in equipment shutdown for cleaning and greatly increasing maintenance costs and downtime losses. In addition, cast iron itself has a high density, and the weight of a single cast iron camshaft is relatively heavy, increasing the load on the main disc of the circular knitting machine, which is not conducive to the long-term stable operation of the main shaft and the reduction of equipment energy consumption.

[0005] Furthermore, existing cast iron triangle mounts mostly involve simply piecing together the side, top, and bottom mounting surfaces in their structural design, lacking integrated structural optimization and resulting in insufficient overall rigidity. Under long-term high-speed vibration conditions, their mounting and positioning are prone to slight deformation, which in turn affects the overall weaving accuracy. Therefore, there is an urgent need to develop a new triangle mount structure that can ensure sufficient mechanical strength, effectively improve heat dissipation efficiency, and effectively prevent yarn lint blockage. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an aluminum triangle seat structure for a circular knitting machine.

[0007] A circular knitting machine aluminum triangle seat structure includes a triangle seat body, the triangle seat body includes a vertical part and a horizontal extension part, and the vertical part and the horizontal extension part are connected by a rounded corner transition; The front of the vertical part has two mounting holes arranged vertically, which extend through the vertical part from front to back; the back of the vertical part has a sliding groove corresponding to and communicating with the mounting holes, which extends vertically; the horizontal extension part has an assembly hole for fixing the triangular seat to the pin plate. The vertical section is provided with an oil injection hole and an oil return hole that run through it. The oil injection hole is located above the two mounting holes, and the oil return hole is located below the two mounting holes. An oil guide channel is also provided between the oil injection hole and the oil return hole. The upper end of the oil guide channel is connected to the oil injection hole, and the lower end is connected to the oil return hole. An oil receiving groove is also provided at the location of the oil return hole to receive the heat transfer oil flowing down after lubrication and guide it into the oil return hole.

[0008] In this invention, the oil guiding channel is an oil guiding groove with a rearward opening machined on the rear end face of the triangular seat body.

[0009] In this invention, the cross-section of the slide groove has a three-section structure, including an inner section, a middle section and an outer section. The width of the middle section is greater than the width of the inner section and the outer section, forming a groove-shaped structure that is narrow in the inside, wide in the middle and narrow in the outside. This provides lateral restraint for the slider installed in the slide groove, and the slide groove restricts the slider to slide up and down only in the vertical direction.

[0010] In this invention, the top of the vertical part is provided with an installation position for installing a cover plate. After installation, the cover plate is flush with the top surface of the triangular seat body and is used to prevent lint or foreign objects from entering the groove.

[0011] In this invention, the front side of the horizontal extension is provided with an inclined surface, and the horizontal extension is also provided with an assembly hole formed perpendicular to the inclined surface; the inclined surface is inclined to the horizontal plane, and the axis of the assembly hole is perpendicular to the inclined surface.

[0012] In this invention, the bottom of the triangular base body is provided with a clearance position, which is formed by an inward recess from the bottom surface and serves as a limiting position when the triangular base is fixed in the installation position of the needle plate; the clearance position is provided with a U-shaped groove for installation and positioning.

[0013] In this invention, the front of the vertical part is also provided with a fixing hole, which is a threaded hole for fixing the detection device; the fixing hole is located on the side above the upper mounting hole.

[0014] In this invention, the wall thickness of the vertical part of the triangular base body is 30-35mm, and the wall thickness of the horizontal extension part varies in a gradient.

[0015] In this invention, the top front end of the vertical part is provided with a chamfer, which is a right-angle chamfer or a rounded corner.

[0016] Furthermore, the bottom of the triangular base body is also provided with a locking hole, which is vertically machined from the clearance position and communicates with the mounting hole. The locking hole is a threaded hole.

[0017] Beneficial effects: Compared to traditional triangular bases, this invention effectively solves multiple technical defects of traditional products, such as poor heat dissipation, easy clogging by lint, high equipment load, insufficient structural rigidity, and low positioning accuracy. By abandoning the traditional through-hole heat dissipation structure, it relies on the material's own thermal conductivity and efficient heat dissipation by heat transfer oil, thereby improving heat dissipation efficiency and completely eliminating the problems of yarn lint clogging heat dissipation holes and oil and sludge accumulation. It also avoids situations such as slide blockage, needle jamming and breakage, and frequent equipment shutdowns for cleaning, significantly improving fabric yield and production efficiency, and reducing equipment maintenance costs. The one-piece molded structure, combined with the nested positioning structure composed of the bottom U-shaped groove and clearance space, solves the problems of insufficient rigidity, easy deformation under high-speed vibration, and positioning misalignment of traditional planar splicing structures, effectively improving the installation positioning accuracy and structural stability of the triangular base, and ensuring the accuracy of knitting and weaving. At the same time, the three-section slide structure can achieve precise lateral limiting of the slider and smooth vertical sliding. Combined with the semi-open circulating lubrication structure, it further reduces component wear and extends the service life of the equipment. The design of the slanted countersunk assembly hole also greatly improves the convenience of equipment installation and subsequent maintenance. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the triangular base of the present invention; Figure 2 This is a schematic diagram of the back structure of the triangular base of the present invention; Figure 3 This is a schematic diagram of the front structure of the triangular base of the present invention; Figure 4 This is a side view of the triangular base of the present invention. Figure 5 This is a rear view schematic diagram of the triangular base of the present invention; Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 8 This is a top view of the triangular base of the present invention. Figure 9 This is a bottom view of the triangular base of the present invention. Figure 10 This is a schematic diagram of the structure of the triangular base after the cover plate is installed. Figure 11 This is an assembly diagram of the triangular base of the present invention after the cover plate, slider and triangular block are installed; Figure 12 This is a schematic diagram showing the mounting pin plate in the mounting position after the triangular base of the present invention is assembled; The attached figures are labeled as follows: 1-triangular base body, 2-vertical part, 3-horizontal extension part, 4-mounting hole, 5-slide groove, 6-assembly hole, 7-oil injection hole, 8-oil return hole, 9-fixing hole, 10-mounting position, 11-sloping surface, 12-rounded transition, 13-clearance position, 14-U-shaped groove, 15-chamfer, 16-positioning hole, 17-cover plate, 18-oil guide groove, 19-oil receiving groove. Detailed Implementation

[0019] This invention provides an aluminum triangular support structure for a circular knitting machine. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0020] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0021] Please see Figures 1 to 12 : This invention discloses an aluminum cam seat structure for a circular knitting machine, comprising a cam seat body 1, which is an integral L-shaped structure made of 6-series or 7-series aerospace aluminum alloy. Figure 4 As shown, the triangular base body 1 includes a vertical part 2 and a horizontal extension part 3. The vertical part 2 and the horizontal extension part 3 are connected by a rounded transition 12 to avoid stress concentration.

[0022] like Figure 3As shown, the vertical part 2 is roughly cuboid in shape, with two vertically arranged mounting holes 4 on the front. Each mounting hole 4 is a circular through hole that extends through the vertical part 2 from front to back. The back of the vertical part 2 has two vertically extending grooves 5, the positions of which correspond one-to-one with the two mounting holes 4. The rear end of each mounting hole 4 communicates with the groove 5. The mounting holes 4 are used to mount auxiliary adjustment components, such as a slider fine-tuning mechanism.

[0023] like Figure 2 , Figure 5 and Figure 6 As shown, the groove 5 is formed by an inward recess from the back of the vertical part 2, extending a certain length vertically. The cross-section of the groove 5 has a three-section structure, including an inner section, a middle section, and an outer section. The width of the middle section is greater than the widths of the inner and outer sections, forming a groove-shaped structure that is narrower in the inside, wider in the middle, and narrower at the outside. This three-section structure provides lateral restraint for the slider installed in the groove 5, ensuring that the slider can only slide up and down vertically without lateral deviation, thus guaranteeing motion accuracy.

[0024] like Figure 2 , Figure 3 and Figure 5 As shown, the vertical part 2 is provided with an oil injection hole 7 and an oil return hole 8 that run through the front and rear. The oil injection hole 7 is located above the two mounting holes 4, and the oil return hole 8 is located below the two mounting holes 4. Both the oil injection hole 7 and the oil return hole 8 are round holes. On the rear end face of the triangular base body 1, an oil guide groove 18 with a rearward opening is also machined between the oil injection hole 7 and the oil return hole 8. The upper end of the oil guide groove 18 is connected to the oil injection hole 7, and the lower end is connected to the oil return hole 8. After the heat-conducting oil with lubricating function is injected from the oil injection hole 7, part of the oil can flow into the oil return hole 8 along the oil guide groove 18 to form a circulation and carry away the heat of the triangular base; another part of the oil will wet the triangular block and the slider under the action of the oil injection inertial force and centrifugal force, lubricating and carrying away heat at the same time. Part of the lubricated oil will continue to flow down. This part of the oil is received by the oil receiving groove 19 set at the position of the oil return hole 8 and guided into the oil return hole 8 to be sucked away. In this way, both the oil flowing through the oil guide groove 18 and the lubricated oil can carry away heat, further improving the cooling effect. Furthermore, the oil injection hole 7 is connected to the oil supply pump (not shown in the attached drawing) for oil supply, and the oil return hole 8 is connected to the oil extraction pump (not shown in the attached drawing) for suction. Specifically, under the action of the oil extraction pump, the oil return hole 8 generates an adsorption force at its inner end, thereby drawing out the heat-conducting oil flowing to the vicinity of the oil return hole 8 opening.

[0025] Not only that, such as Figure 7As shown, the oil injection hole 7 includes a first oil injection section 71 near the front end face of the triangular seat and a second oil injection section 72 near the rear end face of the triangular seat. The diameter of the first oil injection section 71 is larger than that of the second oil injection section 72, and the two are connected by a constriction structure. The larger diameter of the first oil injection section 71 forms an expanded deceleration chamber, which reduces the flow rate and stabilizes the oil pressure after the heat transfer oil enters, allowing it to diffuse fully within the chamber. In addition, multiple branch channels 73 are provided on both sides of the oil injection hole 7. The inlet ends of the multiple branch channels 73 are all connected to the first oil injection section 71, and the outlet ends of the branch channels 73 are all connected to the second oil injection section 72. Because the inlet end of the branch channel 73 is connected to the first oil injection section 71 with a larger orifice and stable oil pressure, the oil intake of each branch channel 73 is more uniform and sufficient. Multiple branch channels 73 are distributed around both sides of the main oil injection hole, which greatly increases the contact area between the heat transfer oil and the triangular seat body 1, and significantly improves the heat dissipation effect. After the heat transfer oil is cooled by the branch channel 73, it flows into the second oil injection section 72 with a smaller orifice, and the flow rate is accelerated, which can quickly export the heat transfer oil carrying heat, forming a highly efficient heat dissipation cycle of "expansion and deceleration - diversion and heat dissipation - convergence and acceleration".

[0026] like Figure 3 As shown, the front of the vertical part 2 is also provided with a fixing hole 9, which is a threaded hole located on one side above the upper mounting hole 4. The fixing hole 9 is used to fix a detection device, such as a sensor or detection probe, for monitoring the running status of the knitting needle or the working status of the tripod.

[0027] like Figure 2 and 4 As shown, the top of the vertical part 2 is provided with a mounting position 10, which is recessed downwards from the top to form a stepped structure. Figure 10 As shown, the mounting position 10 is used to install the cover plate 17, which is flush with the top surface of the triangular seat body 1 after installation. The function of the cover plate 17 is to prevent lint or foreign objects from entering the slide groove 5 from the top, keep the inside of the slide groove clean, and avoid lint accumulation affecting the movement of the slider. The mounting position 10 is provided with mounting holes for fixing the cover plate 17, and the cover plate 17 is fixed to the mounting position 10 with screws.

[0028] like Figure 4 As shown, the top front end of the vertical part 2 is provided with a chamfer 15. The chamfer 15 can be a right-angle chamfer or a rounded corner. The chamfer 15 is used to remove the top edge, avoid sharp edges from scratching operators, and improve operational safety. Considering the difficulty of the processing, a right-angle chamfer is preferred because it is easy to process and has a lower cost.

[0029] like Figure 4As shown, the horizontal extension 3 extends forward from the lower part of the vertical part 2, forming an L-shaped structure together with the vertical part 2. A slope 11 is provided on the front side of the horizontal extension 3, extending downwards and forwards from the front of the top surface of the horizontal extension 3 to the front end face. The slope 11 is inclined at a certain angle to the horizontal plane, and this angle is determined comprehensively based on the ease of installation and the structural stress requirements.

[0030] like Figure 3 and Figure 8 As shown, the horizontal extension 3 is provided with a mounting hole 6, which is a countersunk hole machined perpendicular to the inclined surface 11. That is, the axis of the mounting hole 6 is perpendicular to the surface of the inclined surface 11. This design allows the mounting screw to be screwed in obliquely from the front of the inclined surface 11. The operator can easily tighten the screw while standing in front of the triangular base to install and fix the triangular base onto the pin plate, eliminating the need for operation from the back or side, greatly improving the convenience of installation and maintenance. The countersunk structure of the mounting hole 6 ensures that the screw head is recessed into the hole and does not protrude from the surface of the inclined surface, avoiding interference with other components.

[0031] Traditional triangular bearings often rely on a single bolt for positioning. Under the influence of vibrations from high-speed operation, these bolts are prone to slight displacement, affecting the concentricity of the circular knitting machine. To avoid this, such as... Figure 5 and Figure 9 As shown, in this embodiment, a clearance position 13 is provided at the bottom of the triangular base body 1, and the clearance position 13 is recessed upward from the bottom surface. Furthermore, a U-shaped groove 14 with a rearward opening is also provided on the front side of the clearance position 13. The U-shaped groove 14, together with the clearance position 13, forms a nested positioning structure. Figure 12 As shown, when the triangular seat is installed, the positioning protrusion on the circular knitting machine needle plate is embedded in the U-shaped groove 14, while the clearance position 13 contacts the step reserved on the needle plate. The two work together to achieve precise lateral and longitudinal positioning of the triangular seat.

[0032] like Figure 6 and Figure 9 As shown, the bottom of the triangular base body 1 is also provided with a locking hole 16. The locking hole 16 is machined vertically upward from the clearance position 13 and communicates with the mounting hole 4 above. The locking hole 16 is used to install locking screws or positioning pins, which are screwed in from the bottom upward to limit the position of the components in the mounting hole 4.

[0033] In terms of material selection, the triangular base body 1 is integrally formed from 6-series or 7-series aerospace aluminum alloy. 6-series aluminum alloys, such as 6061 and 6063, have good extrusion molding performance, moderate strength, and excellent corrosion resistance; 7-series aluminum alloys, such as 7075, have higher strength and are suitable for applications requiring heavy loads. The appropriate aluminum alloy grade can be selected based on specific load requirements. The thermal conductivity of aluminum alloys is approximately 160-240 W / (m·K), far exceeding that of cast iron (40-80 W / (m·K), and its thermal conductivity is approximately 3-5 times that of cast iron.

[0034] In terms of wall thickness design, this invention optimizes the wall thickness of the triangular base body 1. The main wall thickness of the vertical part 2 is designed to be 30-35mm, preferably 32.5mm. The wall thickness of the horizontal extension part 3 varies gradually according to the force distribution, with the wall thickness appropriately increased in areas of higher force and appropriately reduced in areas of lower force. Finite element analysis verifies that with a wall thickness of 32.5mm, the maximum displacement of the triangular base under a 100kg load does not exceed 0.02mm, and the displacement under a 200kg load is approximately 0.02mm, meeting the stiffness requirements. In comparison, the displacement of a traditional cast iron triangular base with a wall thickness of 36.5mm under a 200kg load is approximately 0.0135mm. Although the aluminum alloy triangular base has a thinner wall and lighter weight, its stiffness is sufficient to meet the actual operating requirements of the circular knitting machine, and its heat dissipation performance is significantly improved.

[0035] A key feature of this invention is that the triangular base body 1 does not have dedicated through-holes for heat dissipation. Traditional cast iron triangular bases often have multiple heat dissipation holes on the body to increase the heat dissipation area; however, these holes are easily clogged by lint and yarn, leading to reduced heat dissipation efficiency and difficulty in cleaning. This invention achieves efficient heat dissipation by relying on the high thermal conductivity of the aluminum alloy material itself, as well as optimized wall thickness and structural layout. The thinner wall thickness allows heat to be conducted more quickly from the inside to the outside surface, the L-shaped structure and the rational layout of each surface increase the effective heat dissipation area, and the internal structures such as grooves and channels also increase the heat exchange area. Actual measurements show that the heat dissipation efficiency of the aluminum triangular base of this invention is more than 30% higher than that of traditional cast iron triangular bases, effectively reducing the operating temperature.

[0036] In terms of manufacturing process, the triangular base body 1 is manufactured using a one-piece molding process, which can be achieved by extrusion molding followed by machining, or by precision casting or forging followed by machining. The one-piece molding structure avoids splicing welds, ensuring the integrity and strength of the structure, while reducing assembly steps and improving production efficiency.

[0037] The working principle of the triangular base of this invention is as follows: The triangular seat is positioned and installed on the needle plate of the circular knitting machine via the clearance 13 and U-shaped groove 14 at the bottom, and is secured with screws through the mounting holes 6 on the horizontal extension 3. During installation, the screws are screwed in at an angle from the front of the bevel 11 for easy operation.

[0038] The triangle or slider component is installed in the groove 5 on the back of the vertical part 2. An adjustment mechanism is installed through the mounting hole 4 to adjust the vertical position of the triangle, thereby adjusting the needle path. The three-section structure of the groove 5 ensures that the slider moves only in the vertical direction and does not deviate laterally.

[0039] Heat transfer oil is injected through the oil injection hole 7 and enters the interior of the slide groove 5 to lubricate the mating surfaces of the slider and the slide groove, reducing friction and wear. Excess heat transfer oil flows out or returns through the oil return hole 8, forming a lubrication circulation.

[0040] When a circular knitting machine operates at high speed, the friction between the knitting needles and the cam track generates heat. This heat is transferred to the cam holder body 1 through the cams. Due to the high thermal conductivity of aluminum alloy, the heat quickly diffuses within the cam holder body and dissipates into the air through its various outer surfaces. The thinner wall thickness accelerates the heat conduction from the inside to the outside surfaces, and the multiple exposed surfaces of the L-shaped structure increase the heat dissipation area. The entire heat dissipation process does not rely on ventilation holes, thus eliminating the problem of lint clogging.

[0041] The top cover 17 prevents lint from entering the chute from the top, keeps the inside of the chute clean, and ensures smooth movement of the slider.

[0042] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. A triangular support structure for an aluminum knitting circular knitting machine, characterized in that: Includes a triangular base body, the triangular base body including a vertical part and a horizontal extension part, the vertical part and the horizontal extension part being connected by a rounded corner transition; The front of the vertical part has two mounting holes arranged vertically, which extend through the vertical part from front to back; the back of the vertical part has a sliding groove corresponding to and communicating with the mounting holes, which extends vertically; the horizontal extension part has an assembly hole for fixing the triangular seat to the pin plate. The vertical section is provided with an oil injection hole and an oil return hole that run through it. The oil injection hole is located above the two mounting holes, and the oil return hole is located below the two mounting holes. An oil guide channel is also provided between the oil injection hole and the oil return hole. The upper end of the oil guide channel is connected to the oil injection hole, and the lower end is connected to the oil return hole. An oil receiving groove is also provided at the location of the oil return hole to receive the heat transfer oil flowing down after lubrication and guide it into the oil return hole.

2. The aluminum triangular seat structure for a circular knitting machine according to claim 1, characterized in that: The oil guide channel is an oil guide groove with a rearward opening machined on the rear end face of the triangular seat body.

3. The aluminum triangular seat structure for a circular knitting machine according to claim 1, characterized in that: The cross-section of the groove has a three-section structure, including an inner section, a middle section and an outer section. The width of the middle section is greater than the width of the inner and outer sections, forming a groove-shaped structure that is narrow in the inside, wide in the middle and narrow in the outside, providing lateral restraint for the slider installed in the groove.

4. The aluminum triangular seat structure for a circular knitting machine according to claim 1, characterized in that: The top of the vertical part is provided with a mounting position for installing a cover plate. After installation, the cover plate is flush with the top surface of the triangular seat body and is used to prevent lint or foreign objects from entering the chute.

5. The aluminum triangular seat structure for a circular knitting machine according to claim 1, characterized in that: The front side of the horizontal extension is provided with an inclined surface, and the horizontal extension is also provided with an assembly hole formed perpendicular to the inclined surface; the inclined surface is inclined to the horizontal plane, and the axis of the assembly hole is perpendicular to the inclined surface.

6. The aluminum triangular seat structure for a circular knitting machine according to claim 1, characterized in that: The bottom of the triangular base body is provided with a clearance position, which is formed by an inward recess from the bottom surface and is used to limit the triangular base when it is fixed in the installation position of the needle plate; the clearance position is provided with a U-shaped groove for installation and positioning.

7. The aluminum triangular seat structure for a circular knitting machine according to claim 1, characterized in that: The front of the vertical part is also provided with a fixing hole, which is a threaded hole for fixing the detection device; the fixing hole is located on the side above the upper mounting hole.

8. The aluminum triangular seat structure for a circular knitting machine according to claim 1, characterized in that: The wall thickness of the vertical part of the triangular base body is 30-35mm, and the wall thickness of the horizontal extension part varies in a gradient.

9. The aluminum triangular seat structure for a circular knitting machine according to claim 1, characterized in that: The top front end of the vertical part is chamfered, which is either a right-angle chamfer or a rounded corner.

10. The aluminum triangular seat structure for a circular knitting machine according to claim 6, characterized in that: The bottom of the triangular base body is also provided with a locking hole, which is vertically machined from the clearance position and communicates with the mounting hole. The locking hole is a threaded hole.

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