Hook blade cover plate and hooking device using the same
By designing a cover plate on the hook knife on the hook tool, the problem of the hook knife being damaged when not in use is solved, thus protecting the hook knife and the embroidery fabric and maintaining the integrity of the hook tool's function.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SHUANGCHENG MACHINERY TECHNOLOGY CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-06-05
AI Technical Summary
Existing hook-and-loop devices leave the hook blade at the outer end after it moves, making it easy to be bumped and potentially damaging to the embroidery fabric.
Design a hook cover plate including a through slot and a notch at the end of the cover plate, for storing the hook head when the hook is not working, to prevent damage, and for guiding the hook to move up and down through a guide groove.
It effectively protects the hook from damage, prevents damage to the embroidery fabric, and keeps the hook function unaffected.
Smart Images
Figure CN224325539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a hooking device, and more particularly to a hook cover plate used on a hooking device and a hooker using the hook cover plate. Background Technology
[0002] Embroidery machines are widely used equipment for embroidering fabrics in clothing or accessories. The changing of different colored threads and thread cutting require the use of a thread hook box or hooking device. Existing thread hooking devices typically use a hook blade component, where the hook head moves to hook the thread. However, after the hooking action, the hook blade usually remains at the outer end of the hook blade base plate. When the embroidery machine is performing other processes, the fabric is often moved. Without a protective device, the fabric may damage the hook blade and, consequently, the embroidered fabric itself.
[0003] Patent No. ZL202011562534.5, published on March 5, 2021, discloses a thread catcher for an embroidery machine capable of automatically adjusting the amount of thread. It includes a base plate, a thread catcher mounted on the base plate, a lower fork for moving the thread catcher back and forth, and an upper fork for driving the lower fork to swing back and forth. Both the upper and lower forks are sleeved on a positioning shaft mounted on the base plate. A drive torsion spring is installed between the upper and lower forks. The thread catcher is also connected to an elastic adjustment device for automatically tightening the thread, enabling it to automatically adjust the amount of thread and providing better thread cutting. However, this thread catcher also suffers from the aforementioned potential drawbacks. Utility Model Content
[0004] This utility model addresses the current situation where, after completing the hooking action, the hook blade typically remains at the outer end of the hook blade base plate. Furthermore, during other processes on the embroidery machine, the embroidery fabric often moves, posing a risk of the fabric damaging the hook blade without a protective device. This also increases the possibility of damage to the embroidery fabric. The invention provides a hook blade cover plate and hook device that effectively protect the hook blade from damage without affecting the hook device's function, and also protects the embroidery fabric from potential damage.
[0005] The specific technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a hook knife cover plate, characterized in that: it includes a cover plate body, a through-hole extending through the cover plate body, the length direction of the through-hole being along the length direction of the cover plate body, and a cover plate end notch at the lower end of the cover plate body. The cover plate end notch is used to protect the hook knife by storing the hook head and preventing damage to the hook head when not performing hooking tasks. The through-hole is used to guide the hook knife to perform lifting and lowering movements. This effectively allows the hook knife to store the hook head and prevent damage to the hook head when not performing hooking tasks, achieving the purpose of protection; it can effectively protect the hook knife from damage without affecting the function of the hooker, and also protect against the possibility of damage to the embroidery fabric.
[0006] Preferably, the cover plate body is provided with multiple cover plate mounting holes, each used to mount the cover plate onto the hook tool. This improves the convenience, stability, simplicity, and effectiveness of installing, disassembling, and maintaining the cover plate body on the hook tool.
[0007] Preferably, the cover plate body includes an upper end face and a bottom end face, with cover plate mounting connection holes penetrating both the upper and bottom end faces. Four cover plate mounting connection holes are distributed at the outer regions of both ends along the length of the through-slot hole. This improves the convenience, stability, simplicity, and effectiveness of installing, disassembling, and maintaining the cover plate body on the hook-and-loop fastener.
[0008] Preferably, the length of the outer end of the notch at the end of the cover plate is greater than the length of the outer end of the hook head exposed when the hook is not performing hooking work. That is, when the hook is not performing hooking work, the outer end face of the hook head is inside the notch protection area formed by the outer end of the notch at the end of the cover plate. This improves the effectiveness of safety protection against bumps and other damage to the hook head.
[0009] Preferably, the notch shape of the cover plate end is a notch structure composed of two forked arms. Two forked arms extend downwards and outwards along the length of the cover plate body from the lower end, with each forked arm positioned on either side of the shorter side of the lower end of the cover plate body. The notch shape formed by the two forked arms is composed of the space between the two forked arms and their inner connecting areas. This improves the effectiveness of safety protection against damage such as bumps to the hook head.
[0010] Preferably, the notch at the end of the cover plate is U-shaped. This U-shaped notch protects the hook head from damage when not performing hooking work, improving the safety protection against damage to the hook head and enhancing the flexibility and ease of hook head movement.
[0011] Preferably, the U-shaped notch structure includes a first U-shaped notch and a second U-shaped notch, wherein the inner end of the first U-shaped notch is connected to the lower end of the cover plate body, the outer end of the first U-shaped notch is spatially connected to the inner end of the second U-shaped notch, and the width of the outer end of the first U-shaped notch is smaller than the width of the second U-shaped notch. This improves the effectiveness of safety protection against bumps and other damage to the hook head. It also improves the flexibility and effectiveness of the hook head's free movement and protection.
[0012] Preferably, the bottom end face of the cover plate body has multiple protruding bosses distributed on both sides of the through-hole, with a spacing between each boss. Each boss has a recessed groove in its center, hollowed out from the bottom end face of the cover plate body towards the outer bottom end face of the boss. The outer edges of the protruding bosses at both sides of the through-hole along its length are on the same plane. These multiple protruding bosses together form a hook-blade limiting guide groove on the bottom end face of the cover plate, used to guide the hook blade's lifting and lowering movement. This improves the reliability and effectiveness of the hook blade's installation, guidance, and limiting, reduces the overall weight of the cover plate body, lowers material costs, and improves the overall strength and reliability of the cover plate body during use.
[0013] Preferably, the cover plate end notch has an end protrusion protruding outward from the bottom end face of the cover plate main body fork arm on both sides of the corresponding notch. The end protrusion protrusion has a trapezoidal protrusion structure with an inclined slope, and the trapezoidal protrusion structure has a trapezoidal protrusion groove hollowed out from the bottom end face of the cover plate main body fork arm downward to the outer bottom end face of the protrusion protrusion. This improves the reliability and effectiveness of the hook knife installation guidance and limiting, reduces the overall weight of the cover plate body, reduces material costs, and improves the overall strength and reliability of the cover plate body during use.
[0014] Another objective of this invention is to provide a hook-and-line device, comprising a base plate and a hook blade, characterized in that it further includes a hook blade cover plate as described in one of the above-mentioned technical solutions. The hook blade cover plate is disposed on the base plate, and the hook blade is disposed on the base plate and located within the hook blade limiting and guiding groove of the hook blade cover plate. When the hook blade is not performing hook-and-line work, the hook head is located within the protective area formed by the notch at the end of the cover plate. This effectively allows the hook blade to retain its hook head when not performing hook-and-line work and prevents the hook head from being damaged, thus achieving the purpose of protection.
[0015] The beneficial effects of this utility model are: without affecting the function of the hook tool, the original cover plate above the bottom plate of the hook tool is modified, and extensions are added to both sides of the cover plate to protect the hook knife; effectively, when the hook knife is not performing hooking tasks, the hook head is stored and the hook head is prevented from being damaged, thus achieving the purpose of protection; it can not only meet the requirement of not affecting the function of the hook tool, but also effectively protect the hook knife from damage, and also protect against the possibility of damage to the embroidery fabric. Attached Figure Description
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0017] Figure 1 This is a schematic diagram of the structure of the hook cover plate of this utility model.
[0018] Figure 2 This is a schematic diagram of the hook cover plate of this utility model viewed from another direction.
[0019] Figure 3 This is a schematic diagram of the hook cover plate of this utility model viewed from another direction.
[0020] Figure 4 This is a schematic diagram of the structure of the hook cover plate of this utility model when used on a hook tool.
[0021] Figure 5 This is a schematic diagram of the structure of the hook cover plate of this utility model when it is used on a hook tool, viewed from another direction. Detailed Implementation
[0022] Example 1:
[0023] Figure 1 , Figure 2 , Figure 3 In the illustrated embodiment, a hook knife cover plate includes a cover plate body 01. The cover plate body has a through-hole 11 that penetrates the cover plate body 01. The length direction of the through-hole 11 is along the length direction of the cover plate body 01. A cover plate end notch 14 is provided at the lower end of the cover plate body. The cover plate end notch 14 is used to protect the hook knife 30 (see...). Figure 4 When not performing rigging tasks, store the hook head and avoid hooking the head 31 (see Figure 4 The hook 30 was damaged by impact; the through slot 11 is used to guide the hook knife to perform lifting and lowering movements. Figure 4 When not performing rigging tasks, the hook head is retracted upwards and hidden within the protective area formed by the notch 14 at the end of the cover plate, effectively preventing the hook head 31 (see...) from being damaged. Figure 4 Damage from impacts is possible.
[0024] The cover plate body 01 has multiple cover plate mounting holes 12, each used to mount the hook cover plate 01 onto the hook tool. The cover plate body 01 includes an upper end face 10 and a bottom end face 20. The cover plate mounting holes 12 penetrate the upper end face 10 and the bottom end face 20 of the cover plate body. The four cover plate mounting holes 12 are distributed at the outer areas of both ends of the through-slot hole 11 along its length. The length of the outer end of the cover plate end notch 14 is greater than the exposed length of the hook head 31 when the hook tool is not performing hooking work. That is, when the hook tool is not performing hooking work, the outer end face of its hook head 31 is inside the protection area of the outer end of the notch formed by the cover plate end notch 14. The notch shape of the cover plate end notch 14 adopts an end notch shape structure formed (or composed of) two forked arms 13. Starting from the lower end 16 of the cover plate body, two forked arms are provided extending downward and outward along the length direction of the cover plate body 01, and the two forked arms 13 are respectively located on both sides of the short side of the lower end 16 of the cover plate body. The end notch shape structure formed by the two forked arms is composed of the space between the two forked arms and their inner end connecting areas, that is, the cover plate end notch 14 shape structure is composed of the space between the two forked arms 13 and their inner end connecting areas. The overall notch shape of the cover plate end notch 14 adopts a U-shaped end notch shape structure. The U-shaped notch shape structure is used to protect the hook head 31 from being damaged when the hook is not performing hooking work. The U-shaped end notch structure includes a first U-shaped notch 141 and a second U-shaped notch 142. The inner end of the first U-shaped notch 141 is connected to the lower end 16 of the cover plate body. The outer end of the first U-shaped notch 141 is spatially connected to the inner end of the second U-shaped notch 142. The width of the outer end of the first U-shaped notch 141 is smaller than the width of the second U-shaped notch 142.
[0025] The bottom end face 20 of the cover plate body has multiple protruding bosses 21, 22, and 23 distributed on both sides of the through-hole 11, protruding outward from the bottom end face. Each protruding boss is spaced apart, and each protruding boss has a boss groove 211, 221, and 231 in the middle, which is hollowed out from the bottom end face of the cover plate body downward towards the bottom end face of the protruding boss. The multiple protruding bosses protruding outward from the bottom end face (see...) Figure 2 , Figure 3(As shown) includes a first protruding boss 21, a second protruding boss 22, and a third protruding boss 23. The lengths of the first protruding boss 21, the second protruding boss 22, and the third protruding boss 23 increase sequentially or are different. The first protruding boss 21 has a first boss groove 211, the second protruding boss 22 has a second boss groove 221, and the third protruding boss 23 has a third boss groove 231. The outer surfaces of the protruding bosses 21, 22, and 23 at the edges of the through slot 11 along the length of the through slot are on the same side plane. The multiple protruding bosses 21, 22, and 23 at the edges of the through slot along the length of the through slot together form the hook knife limiting guide cover groove 15 at the bottom end of the cover plate, which is used to guide the hook knife to perform lifting and lowering movements (see Figure 2 , Figure 3 (As shown).
[0026] The cover plate end notch 14 has an end protrusion 24 protruding outward from the bottom end face 25 of the cover plate main body fork arm on both sides of the corresponding notch. The end protrusion 24 has a trapezoidal boss structure with an inclined slope 242, and the trapezoidal boss structure has a trapezoidal boss groove 241 that is hollowed out from the bottom end face of the cover plate main body fork arm downward to the outer bottom end face of the protrusion. The inclined surface of the trapezoidal boss structure with the inclined slope 242 extends outward to connect to the bottom end face 25 of the cover plate main body fork arm on both sides of the notch.
[0027] Example 2:
[0028] Figure 4 , Figure 5 In the illustrated embodiment, a hooking device includes a hooking device base plate 60 and a hook 30, and also includes the hook 30 cover plate described in Embodiment 1. The hook 30 cover plate is installed and fixedly mounted on the hooking device base plate 60. The hook 30 is mounted on the hooking device base plate 60 and is located in the hook 30 limiting guide groove 15 of the hook 30 cover plate. When the hook 30 is not performing hooking work, the hook head 31 of the hook 30 is located within the protection area of the end notch 14 of the cover plate. The upper end of the hook 30 is connected to the drive pin 50 of the drive transmission hook 30. The drive pin 50 is connected to the drive transmission device of the hooker. The drive pin 50 can move freely up and down in the through slot 14 of the hook cover plate, thereby driving the hook 30 to move freely up and down in the hook limit guide cover groove 15 to realize the hooking task. Or, when not hooking, the hook head 31 of the hook 30 is stored and hidden in the protective area formed by the end notch 14 of the cover plate to avoid the hook head 31 of the hook 30 being damaged.
[0029] When using, the hook knife is 30 (see...). Figure 4When not performing embroidery tasks, the hook 30, driven by the transmission pin 50, moves upward at its upper end, eventually retracting and hiding the hook head within the protective area of the notch 14 at the end of the cover plate. This prevents the embroidery fabric from being damaged by the fabric during other processes, as the hook head 31 is concealed within the protective area formed by the notch 14. This effectively avoids contact between the hook head 31 and the outside, thus preventing damage to the embroidery fabric. (See [link to embroidery machine description]) Figure 4 Damage from impacts may occur.
[0030] In the description of the positional relationship in this utility model, terms such as "inner", "outer", "upper", "lower", "left", and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments 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 limitations on this utility model.
[0031] The above content and structure describe the basic principles, main features, and advantages of this utility model, which should be understood by those skilled in the art. The examples and descriptions above are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hook-blade cover plate, characterized in that: It includes a cover plate body, on which a through-elongated slot is provided. The length of the through-elongated slot is set along the length of the cover plate body. A cover plate end notch is provided at the lower end of the cover plate body. The cover plate end notch is used to protect the hook knife when it is not performing a hooking task, to store the hook head and to prevent the hook head from being damaged. The through-elongated slot is used to guide the hook knife to perform lifting and lowering movements.
2. The hook cover plate according to claim 1, characterized in that: The cover plate body is provided with multiple cover plate mounting and connection holes, each of which is used to mount and connect the hook knife cover plate to the hook tool.
3. The hook cover plate according to claim 1, characterized in that: The cover plate body includes an upper end face and a bottom end face. The cover plate mounting connection hole penetrates the upper end face and the bottom end face of the cover plate body. The four cover plate mounting connection holes are distributed at the outer areas of both ends of the through long slot hole along its length.
4. The hook cover plate according to claim 1, characterized in that: The length of the outer end of the notch at the end of the cover plate is greater than the length of the outer end of the hook head when the hook is not performing the hooking work. That is, when the hook is not performing the hooking work, the outer end face of the hook head is inside the notch protection area formed by the outer end of the notch at the end of the cover plate.
5. The hook cover plate according to claim 1, characterized in that: The notch shape of the cover plate end notch has an overall end notch shape structure formed by two forked arms. Starting from the lower end of the cover plate body, two forked arms are provided to extend downward and outward along the length of the cover plate body. The two forked arms are respectively located on both sides of the short side of the lower end of the cover plate body. The end notch shape structure formed by the two forked arms is composed of the space between the two forked arms and the inner end connection area.
6. The hook cover plate according to claim 1, characterized in that: The notch at the end of the cover plate is U-shaped, which protects the hook head from damage when it is not performing hooking work.
7. The hook cover plate according to claim 6, characterized in that: The U-shaped notch structure includes a first U-shaped notch and a second U-shaped notch, wherein the inner end of the first U-shaped notch is connected to the lower end of the cover plate body, the outer end of the first U-shaped notch is spatially connected to the inner end of the second U-shaped notch, and the width of the outer end of the first U-shaped notch is smaller than the width of the second U-shaped notch.
8. The hook cover plate according to claim 3, characterized in that: The bottom end face of the cover plate body is provided with multiple protruding bosses that protrude outward from the bottom end face at both sides of the through-slot hole. Each protruding boss is spaced apart. Each protruding boss has a boss groove in the middle that is hollowed out from the bottom end face of the cover plate body downward to the outer bottom end face of the protruding boss. The outer side faces of the protruding bosses at both sides of the through-slot hole along the length direction of the through-slot hole are on the same side plane. The multiple protruding bosses at both sides of the through-slot hole along the length direction of the through-slot hole together form the hook knife limiting guide cover groove on the bottom end face of the cover plate for guiding the hook knife to perform lifting and lowering movement.
9. The hook cover plate according to claim 1, 4, 5, or 6, characterized in that: The cover plate end notch has an end protrusion protrusion protruding outward from the bottom end face of the cover plate main body fork arm on both sides of the corresponding notch. The end protrusion protrusion has a trapezoidal protrusion structure with an inclined slope, and the trapezoidal protrusion structure has a trapezoidal protrusion groove that is hollowed out from the bottom end face of the cover plate main body fork arm downward to the outer bottom end face of the protrusion protrusion.
10. A hook tool, comprising a hook tool base plate and a hook blade, characterized in that: It also includes the hook cover plate as described in any one of claims 1 to 9, wherein the hook cover plate is disposed on the bottom plate of the hooker, the hook is disposed on the bottom plate of the hooker and is located in the hook limit guide groove of the hook cover plate, and when the hook is not performing hooking work, the hook head of the hook is located in the protection area formed by the end notch of the cover plate.