Combined bush-hook

Abstract

The utility model relates to the technical field of textile machinery, in particular to a combined bush-hook which comprises a needle cylinder, two crochet needles and a knife needle located between the two crochet needles, the crochet needles and the knife needle are connected with the side wall of the needle cylinder in a sliding mode, bottom grooves are formed in the bottoms of the crochet needles and the knife needle, the tops of the crochet needles are concaved downwards to form containing grooves, and the tops of the knife needle are concaved downwards to form movable grooves. A take-up box is arranged on the containing groove and comprises a box body, the top and the bottom of the box body are hollow, a rotating shaft is rotationally arranged at the bottom of the box body, a rotating plate is fixedly arranged on the periphery of the rotating shaft, a driving motor is arranged on the outer wall of the box body, and the output end of the driving motor is connected with one end of the rotating shaft; the other end of the rotating shaft is connected with a torsion spring. The take-up box is contained and clamped through the containing groove, the take-up box moves along the movable groove when the knife needle and the bearded needle move reversely in a staggered mode so as to contain fluff sliding off from the top of the bearded needle at any time, and the fluff is stacked above the rotating plate and is driven by the driving motor and the torsional spring to be opened and closed regularly to be collected in a unified mode.

Description

Technical Field

[0001] This utility model mainly relates to the field of textile machinery technology, specifically a combined hook knife. Background Technology

[0002] A hook cutter, consisting of a hook needle and a cutting needle, is a combined component of textile machinery. It typically uses the hook needle to hook yarn into loops, and the cutting needle cuts the yarn, creating pile that is then woven into the base fabric. It is widely used in cut-loop jacquard machines. In traditional combined hook cutters, after cutting the yarn, the cutting needle and hook needle move in opposite directions and become misaligned. This causes the pile to be easily pushed upwards by the hook needle and accumulate at the top of the hook needle, thus affecting subsequent hook needle operations.

[0003] Existing technology uses a yarn storage groove inside the crochet hook to store the fluff lifted by the hook, preventing it from affecting the hook's use. However, the fluff in the storage groove lacks containment, allowing it to easily scatter under external airflow, making it difficult to collect and impacting the factory environment. Furthermore, for some high-strength yarns, the blade at the tip of the hook may not be able to cut them completely, resulting in poor stability during use. Utility Model Content

[0004] The purpose of this invention is to provide a combined hook knife to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a combined hook knife, comprising a syringe, two hooks, and a cutting needle located between the two hooks. The hooks and the cutting needle are slidably connected to the side wall of the syringe. The bottom of the hooks and the cutting needle is provided with a bottom groove. The top of the hooks is recessed to form a receiving groove, and the top of the cutting needle is recessed to form a movable groove. The depth of the movable groove is greater than that of the receiving groove. A take-up box is provided on the receiving groove. The take-up box includes a box body. The top and bottom of the box body are hollow, and a rotating shaft is rotatably provided at the bottom position. A rotating plate is fixedly provided at the outer periphery of the rotating shaft. A drive motor is provided on the outer wall of the box body. The output end of the drive motor is connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to a torsion spring.

[0006] Preferably, the crochet hook includes a crochet hook body, the receiving groove is located on the inner side of the top of the crochet hook body near the needle cylinder, a hook is formed on the outer side of the top of the crochet hook body, and a first guiding slope is formed at the connection position between the crochet hook body and the hook. The yarn is guided to move smoothly to the hook position through the guiding slope to form a loop.

[0007] Furthermore, the hook body also has a protruding connecting part, and a plurality of first connecting holes are formed at equal intervals along the vertical direction on the connecting part. A driving member is provided between the two hook bodies, and a second connecting hole is formed on both sides of the driving member. The number of second connecting holes is the same as that of the first connecting holes and they correspond one-to-one. A stud is connected to each hook body through the first connecting hole and the second connecting hole in sequence. A first needle heel is fixedly provided on the outside of the driving member. The two hooks are connected by the driving member so that the two hooks move synchronously with the first needle heel.

[0008] Preferably, the needle includes a needle body, the movable groove is located on the inner side of the top of the needle body near the syringe, a main blade is formed on the outer side of the top of the needle body, an arc-shaped secondary blade is formed at the connection position of the main blade with the needle body, and a second needle heel is also provided on the outer side of the needle body. The needle is driven to move upward by the second needle heel so that the main blade cuts the yarn, and some stubborn yarns are cut a second time by the secondary blade as the needle moves downward.

[0009] Preferably, the bottom sides of the box body form a latch that fits into the receiving groove, and the inner walls of the box body form a second guide slope. The bottom of the second guide slope is close to the end of the rotating plate. The latch restricts the box body from moving horizontally out of the receiving groove, and the second guide slope restricts the lint inside the box body from falling onto the rotating plate.

[0010] Preferably, the torsion spring is embedded in the side wall of the housing, one end of the torsion spring is fixedly connected to the rotating shaft, and the other end is fixedly connected to the housing. The rotating shaft is driven to reset by the torsion spring so that the rotating plate remains horizontal.

[0011] Preferably, the outer side of the syringe forms three grooves, and the two hooks and the knife needle are slidably connected to one groove respectively. The bottom groove is a hollow groove, and the opening of the bottom groove faces the bottom of the take-up box. The hooks and the knife needle are accommodated to slide vertically through the grooves and the bottom groove, and the yarn falling from the bottom of the take-up box passes through the bottom groove to enter the outside for easy collection.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model provides a combined hook knife that houses a take-up box via a receiving groove. The take-up box moves along a movable groove when the knife needle and hook needle move in opposite directions to collect the fluff that slips off the top of the hook needle. The fluff accumulates above the rotating plate and opens periodically under the drive of the drive motor, allowing the fluff to fall uniformly for easy collection. The rotating plate is then driven by a torsion spring to rotate and return to the closed state. This design has low precision requirements for the drive motor and is easy to implement.

[0014] This utility model provides a combined hook knife, in which the second needle heel drives the cutting needle to move upward so that the main cutting edge above the main body of the cutting needle contacts and cuts the yarn. Some stubborn yarns with higher strength are cut a second time along the side wall of the main body of the cutting needle as the cutting needle moves downward. The secondary cutting edge is arc-shaped to increase the length of the secondary cutting edge, ensuring effective completion of the cutting. The cutting needle has strong stability during use.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the present invention and other related contents, and should not be considered as limitations on the present invention.

[0017] In the accompanying drawings of the instruction manual:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the connection between the hook and the drive component of this utility model.

[0020] Figure 3 This is a schematic diagram of the knife needle structure of this utility model;

[0021] Figure 4 This is a front sectional view of the cable take-up box structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the connection between the drive motor and the rotating plate of this utility model;

[0023] Figure label:

[0024] 1. Crochet hook; 11. Crochet hook body; 12. Receiving groove; 13. First guide slope; 14. Hook; 15. First connecting hole; 2. Cutting needle; 21. Cutting needle body; 22. Movable groove; 23. Second needle heel; 24. Main cutting edge; 25. Secondary cutting edge; 3. Bottom groove; 4. Needle cylinder; 41. Slide groove; 5. Driving component; 51. First needle heel; 52. Second connecting hole; 6. Take-up box; 61. Box body; 62. Second guide slope; 63. Drive motor; 64. Turning plate; 65. Torsion spring; 66. Rotating shaft; 67. Bayonet. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 5 As shown, a combined hook knife includes a syringe 4, two hooks 1, and a cutting needle 2 located between the two hooks 1. The hooks 1 and the cutting needle 2 are slidably connected to the side wall of the syringe 4. The bottom of the hooks 1 and the cutting needle 2 is provided with a bottom groove 3. The top of the hooks 1 is recessed to form a receiving groove 12, and the top of the cutting needle 2 is recessed to form a movable groove 22. The depth of the movable groove 22 is greater than that of the receiving groove 12. A take-up box 6 is provided on the receiving groove 12. The take-up box 6 includes a box body 61. The top and bottom of the box body 61 are hollow, and a rotating shaft 66 is rotatably mounted at its bottom position. A rotating plate 64 is fixedly mounted on the outer periphery of the rotating shaft 66. A drive motor 63 is provided on the outer wall of the box body 61. The output end of the drive motor 63 is connected to one end of the rotating shaft 66, and the other end of the rotating shaft 66 is connected to a torsion spring 65. It should be emphasized that the syringe 4 is actually a cylindrical structure. Figure 1 For ease of demonstration, only a portion of the hook knife structure is shown in the image. Figure 1 The structure shown can be arranged in a circular array to form the complete syringe 4.

[0028] like Figures 1 to 2 As shown, the crochet hook 1 includes a crochet hook body 11, the receiving groove 12 is located on the inner side of the top of the crochet hook body 11 near the needle cylinder 4, a hook 14 is formed on the outer side of the top of the crochet hook body 11, and a first guide slope 13 is formed at the connection position of the crochet hook body 11 and the hook 14. The yarn is guided to move smoothly to the position of the hook 14 through the guide slope 13 to be hooked into a loop.

[0029] like Figures 1 to 2 As shown, the hook body 11 also has a connecting part that protrudes outward. Three first connecting holes 15 are formed at equal intervals along the vertical direction on the connecting part. A driving member 5 is provided between the two hook bodies 11. Three second connecting holes 52 are formed on both sides of the driving member 5. The number of the second connecting holes 52 corresponds one-to-one with the number of the first connecting holes 15. A stud 7 is connected to any one of the hook bodies 11 through the first connecting holes 15 and the second connecting holes 52 in sequence to facilitate the installation and removal of the driving member 5 and the hook 1. A first needle heel 51 is fixedly provided on the outer side of the driving member 5. The two hooks 1 are connected through the driving member 5 so that the two hooks 1 move synchronously with the first needle heel 51.

[0030] like Figure 1 and Figure 3 As shown, the needle 2 includes a needle body 21, and the movable groove 22 is located on the inner side of the top of the needle body 21 near the syringe 4. A main blade 24 is formed on the outer side of the top of the needle body 21, and an arc-shaped secondary blade 25 is formed at the connection position between the main blade 24 and the needle body 21. A second needle heel 23 is also provided on the outer side of the needle body 21. The needle 2 is driven to move upward by the second needle heel 23 so that the main blade 24 cuts the yarn, and some stubborn yarns are cut a second time by the secondary blade 25 as the needle 2 moves downward.

[0031] like Figure 1 As shown, the outer side of the syringe 4 forms three sliding grooves 41. The two hooks 1 and the knife needle 2 are slidably connected to one of the sliding grooves 41 respectively. The bottom groove 3 is a hollow groove. The opening of the bottom groove 3 faces the bottom of the take-up box 6. The hooks 1 and the knife needle 2 are accommodated to slide in the vertical direction through the sliding grooves 41 and the bottom groove 3. The yarn falling from the bottom of the take-up box 6 passes through the bottom groove 3 and enters the outside for easy collection.

[0032] like Figure 4 As shown, the bottom sides of the box 61 form latches 67 that fit into the receiving groove 12. The inner walls of the box 61 form second guide slopes 62. The bottom of the second guide slopes 62 is close to the end of the rotating plate 64. The latches 67 restrict the box 61 from moving horizontally away from the receiving groove 12, and the second guide slopes 62 restrict the fluff inside the box 61 from falling onto the rotating plate 64.

[0033] like Figure 5 As shown, the torsion spring 65 is embedded in the side wall of the housing 61. One end of the torsion spring 65 is fixedly connected to the rotating shaft 66, and the other end is fixedly connected to the housing 61. The rotating shaft 66 is driven to reset by the torsion spring 65 so that the rotating plate 64 remains horizontal.

[0034] The implementation principle of this application embodiment is as follows: Before using this product, the two external drive sources are connected and fixed to the first needle heel 51 and the second needle heel 23 respectively, so as to control the hook 1 and the cutting needle 2 to move independently in the vertical direction; during use, the hook 1 moves upward first, and the curved hook 14 hooks the yarn into a loop. Then the hook 1 moves downward and the cutting needle 2 moves upward, and the main cutting blade 24 cuts the yarn to form fluff. After the cutting needle 2 moves upward to the end point, it moves downward again to the initial position so that the arc-shaped secondary cutting blade 25 can fully contact and cut the stubborn yarn that could not be cut in one go, and repeat the process. The process described above processes the yarn. Part of the resulting fluff falls directly to the outside along the main blade 24, while the other part is lifted by the hook 1 when the hook 1 and the cutting needle 2 intersect, and falls down along the top of the hook 14 into the take-up box 6 to collect the top fluff. The drive motor 63 periodically controls the rotating plate 64 to rotate and open the take-up box 6, allowing the fluff accumulated in the take-up box 6 to pass through the bottom groove 3 and enter the outside for easy collection. The torsion spring 65 elastically drives the rotating plate 64 to rotate back to close the take-up box 6. The precision requirements for the drive motor 63 are relatively low.

[0035] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from its essential characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A combined hook knife, comprising a syringe (4), two hooks (1), and a cutting needle (2) located between the two hooks (1), wherein the hooks (1) and the cutting needle (2) are slidably connected to the side wall of the syringe (4), characterized in that: The bottom of the hook (1) and the knife needle (2) is provided with a bottom groove (3). The top of the hook (1) is recessed to form a receiving groove (12). The top of the knife needle (2) is recessed to form a movable groove (22). The groove depth of the movable groove (22) is greater than that of the receiving groove (12). A take-up box (6) is provided on the receiving groove (12). The take-up box (6) includes a box body (61). The top and bottom of the box body (61) are empty and a rotating shaft (66) is rotatably provided at its bottom position. A rotating plate (64) is fixedly provided at the outer periphery of the rotating shaft (66). A drive motor (63) is provided on the outer wall of the box body (61). The output end of the drive motor (63) is connected to one end of the rotating shaft (66). A torsion spring (65) is connected to the other end of the rotating shaft (66).

2. The combined hook knife according to claim 1, characterized in that: The hook (1) includes a hook body (11), the receiving groove (12) is located on the inner side of the top of the hook body (11) near the syringe (4), a hook (14) is formed on the outer side of the top of the hook body (11), and a first guide slope (13) is formed at the connection position of the hook body (11) and the hook (14).

3. A combined hook knife according to claim 2, characterized in that: The hook body (11) also has a connecting part protruding outward. Multiple first connecting holes (15) are formed at equal intervals along the vertical direction on the connecting part. A driving member (5) is provided between the two hook bodies (11). Second connecting holes (52) are formed on both sides of the driving member (5). The number of second connecting holes (52) is the same as that of first connecting holes (15) and they correspond one to one. A stud (7) is connected to any hook body (11) by passing through the first connecting hole (15) and the second connecting hole (52) in sequence. A first needle heel (51) is fixedly provided on the outside of the driving member (5).

4. A combined hook knife according to claim 1, characterized in that: The needle (2) includes a needle body (21), the movable groove (22) is located on the inner side of the top of the needle body (21) near the syringe (4), the outer side of the top of the needle body (21) forms a main blade (24), the outer side of the main blade (24) forms an arc-shaped secondary blade (25) at the connection position with the needle body (21), and the outer side of the needle body (21) is also provided with a second needle heel (23).

5. A combined hook knife according to claim 1, characterized in that: The bottom sides of the box (61) form slots (67) that fit into the receiving groove (12), and the inner walls of the box (61) form second guide slopes (62), the bottom of the second guide slopes (62) being close to the end of the rotating plate (64).

6. A combined hook knife according to claim 1, characterized in that: The torsion spring (65) is embedded in the side wall of the housing (61). One end of the torsion spring (65) is fixedly connected to the rotating shaft (66), and the other end is fixedly connected to the housing (61).

7. A combined hook knife according to claim 1, characterized in that: The outer side of the syringe (4) forms three sliding grooves (41), and the two hooks (1) and the knife needle (2) are slidably connected to one of the sliding grooves (41) respectively. The bottom groove (3) is a hollow groove, and the opening of the bottom groove (3) faces the bottom of the take-up box (6).

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