A stable single needle multi-color cutting structure

Abstract

The utility model relates to the technical field of tufting machine discloses a kind of stable single needle multicolor cutting structure, comprising: needle bed, the needle bed includes needle seat beam, the needle seat beam still is provided with slider beam below, along the needle seat beam still be equipped with needle head subassembly on, the needle head subassembly at least includes three types of needle bar, the needle bar both sides are arc, the slider beam is provided with the guide groove for the needle bar passes, the guide groove inner wall shape is similar with the needle bar shape;Along the needle bar upper and lower displacement direction still be provided with reset piece, the reset piece is used to drive the needle bar reset;By the arc surface of needle bar both sides design, the arc of guide groove inner wall formed and needle bar is pasted, so that needle bar is more smooth in up and down movement, in addition spring connection place is above needle bar, compared with traditional, the length of spring is shortened, can avoid jam.

Description

Technical Field

[0001] This utility model relates to the field of tufting machine technology, specifically to a stable single-needle multi-color cutting structure. Background Technology

[0002] A tufting machine is a type of textile machinery used to produce tufted fabrics. Its principle involves using a needle bed to insert fiber yarns into a base fabric, forming a fluffy texture. A tufting machine consists of several main parts: a needle bed, base fabric, yarn, a needle-punching mechanism, and rollers. The working principle of the tufting machine is that the rollers and needle-punching mechanism weave the yarn onto the base fabric to form a fluffy texture. In the needle-punching mechanism above the needle bed, needles penetrate the base fabric at a specific angle and speed, while the rollers retract at a certain speed, weaving the yarn onto the base fabric to form the fluff.

[0003] The single-needle structure is part of the tufting machine. However, the existing single-needle structure uses a square or rectangular needle bar with a straight groove, which causes the needle bar to slide up and down unstably (resulting in large friction), thus causing low production efficiency. To address this issue, we propose a more stable single-needle multi-color cutting structure. Utility Model Content

[0004] The purpose of this invention is to provide a stable single-needle multi-color cutting structure to solve the above-mentioned technical problems.

[0005] This utility model provides the following technical solution:

[0006] A stable single-needle multi-color cutting structure includes: a needle bed, the needle bed including a needle seat beam, a slider beam disposed directly below the needle seat beam, and a needle assembly mounted along the needle seat beam. The needle assembly includes at least three types of needle bars, the needle bars having arc-shaped sides. A guide groove for the needle bars to pass through is provided in the slider beam, the inner wall shape of the guide groove being similar to the shape of the needle bars.

[0007] A reset component is also provided along the vertical displacement direction of the needle bar, and the reset component is used to drive the needle bar to reset.

[0008] Furthermore, the needle bars are arranged in sequence as a first needle bar, a second needle bar, and a third needle bar, each with a tufted needle at its end and a needle bar groove along its length;

[0009] A needle selection cylinder is also installed on the needle seat beam. When the telescopic shaft of the needle selection cylinder extends, it is engaged in the groove of the needle bar to cause the needle bar to move down, so that the tufted needle at the end of the needle bar can be woven into the fabric.

[0010] Furthermore, the cross-section of the needle groove is trapezoidal.

[0011] Furthermore, a symmetrical first fixing block and a second fixing block are fixedly installed on the slider beam. A first slider and a second slider are fixedly connected along the facing sides of the first fixing block and the second fixing block, respectively. A guide contact groove is opened on the facing sides of the first slider and the second slider. The guide groove is composed of two sets of the guide contact groove.

[0012] Furthermore, both the first slider and the second slider are made of POM material.

[0013] Furthermore, the needle bed also includes a spring beam disposed above the needle seat beam, the reset element being a spring, one end of which is fixedly connected to the upper end of the needle bar, and the other end is fixedly hung on the spring beam.

[0014] Furthermore, the pin seat beam, slider beam, spring beam, first fixing block, and second fixing block are all made of aluminum.

[0015] Furthermore, the needle bed also includes a transverse push plate disposed on the side of the needle seat beam.

[0016] Furthermore, the needle bed also includes a cylinder beam fixedly mounted on the needle seat beam, used to drive the needle seat beam to move up and down.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application designs the two sides of the needle bar as arc surfaces, and the inner wall of the guide groove formed fits the arc of the needle bar, making the needle bar move up and down more smoothly. In addition, the spring connection is located above the needle bar, which shortens the length of the spring compared with the traditional method and can avoid jamming.

[0019] 2. The slider in this application is made of POM material, and the fixing blocks and beams are made of aluminum, which reduces the weight of the needle bed and makes it easier to move the needle bed up and down.

[0020] 3. In this application, a needle selection cylinder controlled by a solenoid valve is provided with a needle bar groove to select the corresponding needle bar by extending into or retracting from the needle bar groove. The selected needle bar is activated by the up-and-down movement of the cylinder beam. After the work is completed, the needle selection cylinder retracts and is reset by a spring, thus completing the needle selection process and achieving precise needle selection. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram showing the positional relationship between the needle assembly and the slider beam.

[0023] Figure 3 for Figure 2Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a schematic diagram showing the positional relationship between the needle assembly and the guide groove.

[0025] Figure 5 This is a schematic diagram of the movement structure of the needle selection cylinder's telescopic shaft entering the needle bar groove.

[0026] In the diagram: 11. Needle bed; 111. Transverse push plate; 112. Sliding beam; 12. Needle seat beam; 121. First slider; 122. Second slider; 123. Guide contact groove; 124. First fixing block; 125. Second fixing block; 126. Needle selection cylinder; 13. Cylinder beam; 14. Needle assembly; 141. First needle bar; 142. Second needle bar; 143. Third needle bar; 144. Needle bar groove; 145. Tufted needle; 146. Spring; 15. Spring beam. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-5 As shown, this utility model provides a technical solution: a stable single-needle multi-color cutting structure, including a needle bed 11, the needle bed 11 including a needle seat beam 12, a needle tip assembly 14 arranged along the needle seat beam 12, in order to facilitate needle selection from the needle tip assembly 14, a needle selection cylinder 126 with the same number of needle bars is also fixedly installed on the needle seat beam 12, the needle selection cylinder 126 can select needles from the needle tip assembly 14, a slider beam 112 is also arranged below the needle seat beam 12, the needle tip assembly 14 can pass through the slider assembly in the slider beam 112 to work.

[0029] Furthermore, such as Figure 2 As shown, the needle assembly 14 includes at least three different types of needle selection for textile needs, such as... Figure 3 The enlarged view of the needle assembly 14 shown indicates that the needle assembly 14 includes a first needle bar 141, a second needle bar 142, and a third needle bar 143. Tufting needles 145 are provided at the ends of all three needle bars to weave the fabric. Needle bar grooves 144 are provided at different positions on the three needle bars. The position of the needle bar grooves 144 determines the needle selection. In use, the needle selection cylinder 126 is driven by the input weaving program. The telescopic shaft of the needle selection cylinder 126 can be engaged in the needle bar grooves 144. Figure 5It can be clearly seen that when the telescopic shaft of the needle cylinder 126 extends and engages in the needle bar groove 144, the needle bar is moved downwards, causing the tufted needle 145 at the end of the needle bar to extend from the slider beam 112. To help the needle bar return to its original position, a spring beam 15 is also provided along the upper end of the needle seat beam 12, and a spring 146 is fixedly connected to the upper end of each set of needle bars. The upper end of the spring 146 is fixedly hooked onto the spring beam 15. When the telescopic shaft of the needle cylinder 126 exits from the needle bar groove 144, the spring 146 drives the needle bar upwards to complete the needle bar return to its original position. This step completes the needle selection process. The needle bar groove 144 can select needles such as... Figure 5 The groove shown has a trapezoidal cross-section.

[0030] Furthermore, such as Figure 4 As shown, a first fixing block 124 and a second fixing block 125 are also fixedly engaged on the slider beam 112. The first fixing block 124 and the second fixing block 125 are symmetrically distributed. A first slider 121 and a second slider 122 are also fixedly disposed along the first fixing block 124 and the second fixing block 125, respectively. Guide contact grooves 123 are formed on the first slider 121 and the second slider 122. The guide contact grooves 123 on the first slider 121 and the second slider 122 are combined to form a complete guide groove to guide the needle bar. The two sides of the part are arc surfaces, forming a guide groove that is similar in shape to the needle bar. That is, the inner wall of the guide groove fits against the arc outer wall of the needle bar. This large-area arc surface contact provides more uniform support and smaller pressure distribution compared to traditional point contact or small plane contact (such as square or simple rectangular needle bars with straight grooves). Therefore, when the arc surface slides in the groove, the friction is smaller and more stable, and it is not easy to deviate or jam, making the needle bar move more smoothly up and down. In addition, the spring 146 is designed in this way, which shortens the length compared to traditional tension springs and can avoid jamming.

[0031] Furthermore, such as Figure 1 As shown, the needle bed 11 also includes a transverse push plate 111 installed on the sides of the slider beam 112, the needle seat beam 12, and the spring beam 15. The transverse push plate 111 is fixedly connected to the execution end of the linear drive mechanism. The linear drive mechanism can be a screw and nut structure, used to drive the needle bed 11 to move back and forth transversely. A cylinder beam 13 is also installed along the front end face of the needle seat beam 12. The cylinder beam 13 is connected to the execution cylinder and can drive the needle seat beam 12 to move up and down, thereby moving the fabric.

[0032] Furthermore, both the first slider 121 and the second slider 122 are made of POM (polyoxymethylene) engineering plastic. POM has excellent wear resistance, self-lubrication, low coefficient of friction and low density. The slider beam 112, the first fixing block 124 and the second fixing block 125 used to support these sliders are also made of aluminum. Replacing the beams and fixing blocks that constitute the transverse part (i.e. the part that needs to move left and right) of the needle bed 11 with aluminum can significantly reduce the overall weight of the needle bed 11, reduce the drive load of the linear drive mechanism, reduce motor power consumption, and reduce the transverse motion inertia of each beam, making the needle bed 11 start, stop and change direction faster and more accurately.

[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A stable single-needle multi-color cutting structure, characterized in that, include: A needle bed (11) includes a needle seat beam (12), and a slider beam (112) is provided directly below the needle seat beam (12). A needle assembly (14) is also installed along the needle seat beam (12). The needle assembly (14) includes at least three types of needle bars. The sides of the needle bars are arc-shaped. A guide groove is provided in the slider beam (112) for the needle bars to pass through. The inner wall shape of the guide groove is similar to that of the needle bars. A reset component is also provided along the vertical displacement direction of the needle bar, and the reset component is used to drive the needle bar to reset.

2. The stable single-needle multi-color cutting structure according to claim 1, characterized in that: The needle bars are arranged in sequence as a first needle bar (141), a second needle bar (142) and a third needle bar (143), and each needle bar is provided with a tufted needle (145) at its end, and a needle bar groove (144) is also provided along the needle bar; A needle selection cylinder (126) is also installed on the needle seat beam (12). When the telescopic shaft of the needle selection cylinder (126) extends, it is engaged in the needle bar groove (144) so ​​that the needle bar moves down, so that the tufted needle (145) at the end of the needle bar weaves the fabric.

3. The stable single-needle multi-color cutting structure according to claim 2, characterized in that: The cross-section of the needle groove (144) is trapezoidal.

4. The stable single-needle multi-color cutting structure according to claim 1, characterized in that: The slider beam (112) is also fixedly provided with a symmetrical first fixing block (124) and a second fixing block (125). A first slider (121) and a second slider (122) are fixedly connected to the opposite side of the first fixing block (124) and the second fixing block (125), respectively. The opposite side of the first slider (121) and the second slider (122) is provided with a guide contact groove (123). The guide groove is composed of two sets of the guide contact groove (123).

5. A stable single-needle multi-color cutting structure according to claim 4, characterized in that: Both the first slider (121) and the second slider (122) are made of POM material.

6. A stable single-needle multi-color cutting structure according to claim 4, characterized in that: The needle bed (11) also includes a spring beam (15) disposed above the needle seat beam (12). The reset member is a spring (146). One end of the spring (146) is fixedly connected to the upper end of the needle bar, and the other end is fixedly hung on the spring beam (15).

7. A stable single-needle multi-color cutting structure according to claim 6, characterized in that: The pin seat beam (12), slider beam (112), spring beam (15), first fixing block (124) and second fixing block (125) are all made of aluminum.

8. A stable single-needle multi-color cutting structure according to claim 1, characterized in that: The needle bed (11) also includes a transverse push plate (111) disposed on the side of the needle seat beam (12).

9. A stable single-needle multi-color cutting structure according to claim 1, characterized in that: The needle bed (11) also includes a cylinder beam (13) fixedly installed on the needle seat beam (12) for driving the needle seat beam (12) to move up and down.

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