Jacquard machine with novel needle selection structure

Abstract

The utility model discloses a jacquard machine with a novel needle selection structure, relates to the technical field of jacquard machines, and solves the problem that the needle selection structure in the jacquard machine causes disordered patterns of fabrics due to position deviation of a needle butt of a pattern bit. The upper needle dial assembly comprises a needle dial seat, a needle dial plate, a needle dial plate and a needle dial plate, an upper needle and a middle connecting needle; a pattern bit; a jacquard triangle; resetting the triangle; a needle selector; wherein a space for the pattern bit and the middle connecting needle to swing downwards is arranged below the pattern bit and the middle connecting needle, so that the needle selector can perform needle selection action on the pattern bit, and the middle connecting needle can be driven by the pattern bit to enable a needle butt to be separated from a knitting needle movement track groove on the jacquard cam. Due to the fact that the pattern bit can only swing up and down in the vertical plane, the pattern bit and the tool bit of the needle selector cannot be staggered, and needle selection cannot be affected even if the middle connecting needle and the tool bit of the needle selector are staggered in the telescopic movement process.

Description

Technical Field

[0001] This utility model relates to the field of jacquard machine technology, and in particular to a jacquard machine with a novel needle selection structure. Background Technology

[0002] A new type of jacquard knitting machine with a needle selection structure is designed to weave fabrics with different patterns and designs on both sides of the fabric according to different designs and needs. Employing an electronic control system, it precisely controls every detail and can quickly design machine files for any pattern using specialized drafting software, greatly improving production efficiency and bringing more flexibility and adaptability to textile design and production.

[0003] The jacquard machine has an upper needle plate assembly and a lower needle plate assembly. The upper needle plate assembly has several upper needles arranged in a circular direction, which can move horizontally and radially. The lower needle plate assembly has several lower needles arranged in a circumferential direction, which can move vertically and radially. The rear end of the upper needles is fixedly connected to a middle connecting needle. The middle connecting needle has a protrusion that fits into a groove at the bottom of a jacquard triangle located above the middle connecting needle. When the jacquard triangle moves circumferentially, the protrusion on the middle connecting needle can slide along the trajectory of the groove, thereby driving the upper needles to move radially and radially with the middle connecting needle.

[0004] The current jacquard machine needle selection structure has certain limitations. When the jacquard piece and the center needle are integrated, the needle heel position of the jacquard piece is prone to shift, causing needle selection deviation and resulting in incorrect needle selection, which leads to disordered patterns on the fabric. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems by designing a jacquard machine with a novel needle selection structure, which solves the problem of fabric scrambling caused by the misalignment of the needle heel position of the jacquard piece in the needle selection structure of the jacquard machine.

[0006] The technical solution of this utility model to achieve the above objectives is a jacquard machine with a novel needle selection structure, comprising an upper needle plate assembly, wherein the upper needle plate assembly includes:

[0007] Needle plate holder;

[0008] Upper needle plate, which is mounted on a needle plate holder;

[0009] The upper needle and the middle connecting needle are connected at the rear end of the upper needle and at the front end of the middle connecting needle. The upper needle and the middle connecting needle slide horizontally and are evenly distributed in the needle groove of the upper needle plate.

[0010] Jacquard piece, one end of which has a positioning foot, and the other end is provided with a positioning groove and a track needle foot. The jacquard piece has a needle heel. The rear end of the middle connecting needle is inserted and connected to the positioning groove. The jacquard pieces are evenly distributed in the needle groove of the upper needle plate.

[0011] The jacquard triangle has a needle movement trajectory groove, and the center needle has a needle heel that cooperates with the needle movement trajectory groove. The needle heel is embedded in the needle movement trajectory groove. The jacquard triangle is fixed on the jacquard cutter. When the needle plate seat rotates during operation, the center needle and the upper needle can be controlled to move radially along the needle plate seat by the needle movement trajectory groove on the jacquard triangle.

[0012] The reset triangle is provided with a motion trajectory groove for docking track needles. The jacquard piece can follow the upper needle plate to rotate and work, and is controlled by the motion trajectory groove on the reset triangle and the needle selector cutter head to press down or avoid the heel of the jacquard piece, so as to perform sinking or reset movements.

[0013] The needle selector is located above the jacquard piece. The cutter on the needle selector selects or does not select needles on the jacquard piece needle heel, thereby controlling whether the middle needle pushes the upper needle outward to hook the yarn.

[0014] The jacquard piece and the center needle have a space below them that allows them to swing downwards, so that the needle selector can select needles for the jacquard piece. The center needle can be driven by the jacquard piece to make its heel disengage from the needle movement track groove on the jacquard triangle.

[0015] Preferably, each of the upper needles, middle needles, and jacquard pieces is provided with a plurality of needles, and the plurality of upper needles, middle needles, and jacquard pieces are evenly arranged along the circumference of the needle plate seat and correspond one-to-one with each other.

[0016] Preferably, there are several needle selectors, which are evenly arranged along the circumference of the needle plate seat and correspond one-to-one with the jacquard pieces.

[0017] Preferably, the jacquard triangle is provided in several pieces, and the several jacquard triangles are spliced ​​together along the circumference of the needle plate to form a ring. Each center needle and upper needle can be controlled by the knitting needle movement trajectory groove on the corresponding jacquard triangle to perform yarn selection action.

[0018] Preferably, the upper needle plate is provided with a plurality of needle grooves, and the upper needle, the middle connecting needle and the jacquard piece are evenly inserted into the needle grooves of the needle plate.

[0019] Preferably, the jacquard piece is hinged to the upper needle plate.

[0020] Preferably, a circular positioning foot is formed at one end of the jacquard piece away from the positioning groove, and the upper needle plate has an upper needle plate positioning groove that cooperates with the positioning foot. The positioning foot is hinged in the upper needle plate positioning groove.

[0021] Preferably, there is a space between the bottom of the jacquard piece and the needle groove of the upper needle plate for the jacquard piece to swing.

[0022] Preferably, a jacquard cutting disc is provided above the upper needle and the middle needle, a jacquard core is provided above the jacquard piece, the jacquard core is located in the inner circle of the jacquard cutting disc, a needle selector seat is provided on the jacquard core, and the needle selector is installed on the needle selector seat.

[0023] Preferably, the upper part of the jacquard piece protrudes upward to form a plurality of jacquard piece heels.

[0024] Compared with existing technologies, its advantages are as follows:

[0025] This invention features a simple structure and excellent needle selection. A jacquard piece is added to the rear end of the center needle. The positioning foot on the jacquard piece is hinged to the upper needle plate. The other end of the jacquard piece forms a positioning groove and a track needle foot. During the radial extension and retraction of the center needle and the upper needle, the rear end of the center needle remains within and interlocks with the positioning groove. The positioning groove guides the movement of the center needle, while the jacquard piece can only swing up and down. The needle heel on the center needle is embedded in the needle movement trajectory groove on the jacquard cam. During the rotation of the needle plate, the needle movement trajectory groove on the jacquard cam controls the radial extension and retraction of the center needle and the upper needle along the needle plate. The jacquard piece needle heel is embedded in the movement trajectory groove on the return cam, allowing it to follow the rotation of the upper needle plate. It is controlled by the movement trajectory groove on the return cam and by the needle selector cutter head's command to press down or avoid the jacquard piece needle heel, resulting in a sinking or returning motion. When the needle selector moves towards the jacquard plate, the jacquard plate will cause the center needle to swing downwards, causing the protrusion on the center needle to disengage from the needle movement track groove at the bottom of the jacquard triangle. In this way, the corresponding center needle and upper needle will not extend or retract during the movement of the jacquard triangle. Moreover, since the jacquard plate and the center needle are separate, and the jacquard plate can only swing up and down in the vertical plane, there will be no deviation in the position of the jacquard plate needle heel, ensuring the accuracy of needle selection and preventing the fabric from having random patterns. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the axial sectional structure of the lower needle plate assembly and the upper needle plate assembly;

[0027] Figure 2 This is a cross-sectional structural diagram of the lower needle plate assembly and the upper needle plate assembly;

[0028] Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle;

[0029] Figure 4 This is a diagram illustrating the combination of jacquard pieces, center stitch, and purl stitch;

[0030] Figure 5 This is a partial cross-sectional structural diagram of the lower needle plate assembly and the upper needle plate assembly when the jacquard triangle with the head and the reset triangle are in use.

[0031] In the diagram, 1. Upper needle plate assembly; 11. Needle plate base; 12. Upper needle; 13. Center needle; 131. Needle heel; 14. Jacquard piece; 141. Positioning groove; 142. Jacquard piece needle heel; 143. Positioning foot; 144. Track needle foot; 15. Upper needle plate; 151. Upper needle plate positioning groove; 16. Jacquard center core; 17. Jacquard cutting plate; 18. Needle selector base; 19. Needle selector; 20. Jacquard triangle; 21. Reset triangle; 2. Lower needle plate assembly. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0033] like Figure 1 and Figure 2 As shown, this utility model embodiment proposes a jacquard machine with a novel needle selection structure, which mainly includes an upper needle plate assembly 1, and a lower needle plate assembly 2 is generally arranged below the upper needle plate assembly 1 (e.g., Figure 1 As shown), the lower needles in the lower needle plate assembly 2 are set vertically, while the upper needles 12 in the upper needle plate assembly 1 are set horizontally. By cooperating with several upper needles 12 and several lower needles, fabrics with different patterns can be woven.

[0034] refer to Figure 2 , Figure 3 , Figure 5 , Figure 2 The diagram shows a cross-sectional view of the upper needle plate assembly 1 and the lower needle plate assembly 2. Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle. Figure 5 This is a partial cross-sectional structural diagram of the lower needle plate assembly and the upper needle plate assembly when the jacquard triangle with the head and the reset triangle are in use.

[0035] The upper needle plate assembly 1 mainly consists of a needle plate base 11, several upper needles 12, upper needle plate 15, jacquard center 16, jacquard cutting plate 17, several center connecting needles 13, several jacquard pieces 14, several jacquard triangles 20, several reset triangles 21, and several needle selectors 19.

[0036] Specifically, the needle plate base 11 is circular, and the upper needle plate 15 is mounted on the upper part of the needle plate base 11. The upper needle plate 15 is annular. Several needle grooves are formed on the upper needle plate, and the needle grooves are evenly distributed along the circumference of the upper needle plate. The upper needles, center needles, and jacquard pieces are evenly inserted into the needle grooves of the needle plate.

[0037] The purl needle 12, the center connecting needle 13, and the jacquard piece 14 correspond one to one. The front end of the purl needle 12 is the hook end, and the rear end is engaged with the front end of the center connecting needle 13. The center connecting needle 13 will drive the purl needle 12 to move radially along the purl needle plate 15 (or needle plate seat 11).

[0038] A circumferential positioning groove 151 is formed on one side of the upper needle plate 15. The upper needle plate positioning groove 151 is annular and extends along the circumferential direction. A circular positioning foot 143 is formed at the rear end of the jacquard piece 14. The shape of the positioning foot 143 is adapted to the shape of the upper needle plate positioning groove 151. The positioning foot 143 of the jacquard piece 14 is hinged to the upper needle plate positioning groove 151.

[0039] The front end of the jacquard piece 14 (i.e. the end away from the positioning foot 143) is formed with a positioning groove 141 and a track pin 144. The positioning groove 141 extends inward along the length direction of the jacquard piece 14 to a certain length so that the center pin 13 can be inserted into the positioning groove 141 and can move along the positioning groove 141. The positioning groove 141 plays a guiding and positioning role, limiting the range of radial extension and retraction of the center pin 13.

[0040] refer to Figure 4 The opening of the positioning groove 141 gradually narrows, roughly matching the thickness of the center pin 13. The rear end of the center pin 13 has a beveled surface, which guides the rear end of the center pin 13 when inserted into the positioning groove 141. The front end of the jacquard piece 14, located above the positioning groove 141, extends an appropriate length towards the center pin 13. This allows the jacquard piece 14 to press down on the rear end of the center pin 13 when it deflects downwards, centered on the upper needle plate positioning groove 151, thus pressing the center pin 13 downwards.

[0041] There is a certain amount of space between the bottom of the jacquard piece 14 and the needle groove of the upper needle plate 15, so that the jacquard piece 14 can swing up and down. Similarly, there is also a certain amount of space between the bottom of the middle needle 13 and the upper needle plate 15, so that the jacquard piece 14 can press the middle needle 13 downward, causing the middle needle 13 to swing downward, which facilitates the needle selector 19 to select needles from the jacquard piece 14.

[0042] like Figure 3 As shown, the jacquard cutting disc 17 is also ring-shaped, located above several middle needles 13 and upper needles 12. The jacquard core is also ring-shaped, located above several jacquard pieces 14. Several needle selector seats 18 are installed on the jacquard core, and each needle selector seat 18 corresponds to a needle selector 19, with the needle selector 19 mounted on the needle selector seat 18. The lower end of the needle selector 19 has a retractable blade, and the needle selector 19 controls the up-and-down movement of the blade.

[0043] When weaving special jacquard patterns on fabric, some of the needle selectors 19 control the cutting head to move downwards, pressing the jacquard piece 14 downwards. The front end of the jacquard piece 14 swings downwards, thus pressing down the corresponding center needle 13. This causes the needle heel 131 on the center needle 13 to disengage from the needle movement track groove at the bottom of the jacquard triangle 20. In this way, when the jacquard triangle 20 moves along the circumferential direction, it will not cause the corresponding center needle 13 and the purl needle 12 to extend or retract. This method allows for the control and selection of the corresponding purl needle 12.

[0044] Preferably, multiple jacquard heels 142 are formed by an upward protrusion on the upper part of the jacquard piece 14. When the cutter head of the needle selector 19 moves downward, it will come into contact with the jacquard heels 142. By selecting or not selecting needles on the jacquard heels 142 on the jacquard piece 14 through the cutter head on the needle selector 19, the control is made to push the upper needle outward to hook the yarn. Under the action of the jacquard piece 14, the middle needle 13 can make the heel 131 disengage from the needle movement trajectory groove on the jacquard triangle 20.

[0045] In this needle selection structure, the jacquard plate 14 can only swing up and down, while the upper needle 12 and the middle needle 13 can only move radially. No matter how the middle needle 13 moves, its rear end will be inserted into the positioning groove 141 at the front end of the jacquard plate 14. By pressing down the jacquard plate 14, the middle needle 13 is pressed down, so that the needle heel 131 on the middle needle 13 is disengaged from the needle movement trajectory groove at the bottom of the jacquard triangle 20, thus ensuring the accuracy of needle selection.

[0046] refer to Figure 5 The jacquard triangles 20 are installed at the bottom of the jacquard cutting disc 17 and are evenly distributed along the circumference. Each jacquard triangle 20 has a needle movement track groove. The needle heel 131 of the center needle 13 is embedded in the needle movement track groove, and the needle heel 131 of the center needle 13 slides along the track of the needle movement track groove, thereby realizing radial telescopic movement. When the needle plate 11 rotates, the center needle 13 and the upper needle 12 can be controlled to telescopically move along the needle plate 11 through the needle movement track groove on the jacquard triangles 20.

[0047] The reset triangles 21 are mounted on the inner wall of the jacquard cutting disc 17 and are evenly distributed along the circumference. Each reset triangle 21 has a motion track groove, and the track needles 144 at the front end of the jacquard piece 14 are embedded in the motion track groove. When the needle plate seat 11 rotates, the movement of the jacquard piece 14 can be controlled by the motion track groove on the reset triangle 21. At the same time, the needle selector 19 cutter head gives the instruction to press down or avoid the heel 142 of the jacquard piece, making it sink or reset.

[0048] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A jacquard machine with a novel needle selection structure, comprising an upper needle plate assembly (1), characterized in that, The upper needle plate assembly (1) includes: Needle plate holder (11); Upper needle plate (15), said upper needle plate (15) is mounted on needle plate seat (11); Upper needle (12) and middle connecting needle (13), the rear end of the upper needle (12) is connected to the front end of the middle connecting needle (13), the upper needle (12) and the middle connecting needle (13) slide horizontally and are evenly distributed in the needle groove of the upper needle plate (15); Jacquard piece (14), one end of the jacquard piece (14) has a positioning foot (143), the positioning foot (143) is hinged to the upper needle plate (15), the other end of the jacquard piece (14) is provided with a positioning groove (141) and a track needle foot (144), the jacquard piece (14) has a jacquard piece needle heel (142), the rear end of the middle connecting needle (13) is inserted and connected to the positioning groove (141), and the jacquard pieces (14) are evenly distributed in the needle groove of the upper needle plate (15); Jacquard triangle (20), the jacquard triangle (20) is provided with a needle movement trajectory groove, the middle needle (13) has a needle heel (131) that cooperates with the needle movement trajectory groove, the needle heel (131) is embedded in the needle movement trajectory groove, the jacquard triangle (20) is fixed on the jacquard cutting plate (17), when the needle plate seat (11) rotates during operation, the middle needle (13) and the upper needle (12) can be controlled to move radially along the needle plate seat (11) through the needle movement trajectory groove on the jacquard triangle (20); The reset triangle (21) is provided with a motion trajectory groove for docking track pins (144). The jacquard piece (14) can follow the upper needle plate (15) for rotation and work, and is controlled by the motion trajectory groove on the reset triangle (21) and the needle selector cutter head to press down or avoid the jacquard piece needle heel (142), and performs sinking or reset movements. The needle selector (19) is located above the jacquard piece (14). The cutter on the needle selector (19) selects or does not select needles on the jacquard piece needle heel (142) on the jacquard piece (14), thereby controlling whether the middle connecting needle (13) pushes the upper needle (12) to hook the yarn outward. The jacquard piece (14) and the center needle (13) have a space below them that allows the jacquard piece (14) and the center needle (13) to swing downwards, so that the needle selector (19) can select needles for the jacquard piece (14). The center needle (13) can be driven by the jacquard piece (14) so ​​that the needle heel (131) can be disengaged from the needle movement trajectory groove on the jacquard triangle (20).

2. The jacquard machine with a new selection structure according to claim 1, characterized in that, The upper needle (12), middle needle (13) and jacquard piece (14) are each provided with a number of needles. The number of upper needles (12), middle needles (13) and jacquard pieces (14) are evenly arranged along the circumference of the needle plate seat (11) and correspond to each other one by one.

3. The jacquard machine with new selection structure according to claim 2, characterized in that, The needle selector (19) is provided in several units, and the several needle selectors (19) are evenly arranged along the circumference of the needle plate seat (11) and correspond one-to-one with the jacquard piece (14).

4. The jacquard machine with a new selection structure according to claim 1, characterized in that, The jacquard triangle (20) is provided with several blocks. Several jacquard triangles (20) are spliced ​​together along the circumference of the needle plate seat (11) to form a ring. Each center needle (13) and upper needle (12) can be controlled by the knitting needle movement trajectory groove on the corresponding jacquard triangle (20) to perform yarn selection.

5. The pattern jacquard machine having a new selection structure according to claim 1, characterized in that, The upper needle plate (15) is provided with a number of needle grooves, and the upper needle (12), the middle connecting needle (13) and the jacquard piece (14) are evenly inserted into the needle grooves of the needle plate (15).

6. The pattern jacquard machine having a new selection structure according to claim 1, characterized in that, The jacquard piece (14) is hinged to the upper needle plate (15).

7. The jacquard machine with new selection structure according to claim 6, characterized in that, A circular positioning foot (143) is formed at one end of the jacquard piece (14) away from the positioning groove (141). The upper needle plate (15) has an upper needle plate positioning groove (151) that cooperates with the positioning foot (143). The positioning foot (143) is hinged in the upper needle plate positioning groove (151).

8. The jacquard machine with a novel needle selection structure according to claim 7, characterized in that, There is a space between the bottom of the jacquard piece (14) and the needle groove of the upper needle plate (15) for the jacquard piece (14) to swing.

9. The pattern jacquard machine having a new selection structure according to claim 1, characterized in that, A jacquard cutting plate (17) is provided above the upper needle (12) and the middle connecting needle (13), and a jacquard core (16) is provided above the jacquard piece (14). The jacquard core (16) is located in the inner circle of the jacquard cutting plate (17). A needle selector seat (18) is provided on the jacquard core (16), and the needle selector (19) is installed on the needle selector seat (18).

10. The pattern jacquard machine having a new selection structure according to claim 1, characterized in that, The upper part of the jacquard piece (14) protrudes upward to form a plurality of jacquard piece heels (142).

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