Movable key taper head for thin slitting device
By introducing a combination structure of metal slider, insert rod and housing into the movable key cone of the thin slitting device, the problem of connection loosening caused by spring fatigue is solved, realizing stable fixing and convenient disassembly of the single key, and improving the service life and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANDAN ZHENGDA PIPE MFG CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-24
Smart Images

Figure CN224543280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of movable key cone technology, specifically a movable key cone for a thin longitudinal shearing device. Background Technology
[0002] A thin slitting device is a type of equipment used to longitudinally cut metal coils (such as stainless steel strips, aluminum strips, cold-rolled steel strips, etc.) into strips of a specific width. Its core structure includes a main shaft system, upper and lower cutter shafts, a transmission system, a control system, and auxiliary parts. It features high precision, high automation, energy saving, and environmental protection.
[0003] The movable key cone is a key component used in thin slitting equipment. Its design combines stepped key block inlay, movable mounting structure and anti-loosening design to improve the accuracy, stability and safety of the equipment. It is suitable for slitting metal coils.
[0004] The prior art discloses a movable key cone for a thin slitting device, with publication number CN218532470U, comprising a single key, a double key, and a cone body. The cone body has a single keyway and a double keyway. The single key is installed in the single keyway via a movable mounting structure, and the double key is fixed in the double keyway via the same structure. The movable mounting structure includes a key block spring, a guide rod, an anti-loosening block, and bolts. The guide rod is inserted into the single and double keys, and the key block spring is sleeved on the guide rod. Both the single and double keys have anti-loosening slots adapted to the anti-loosening block structure. The anti-loosening blocks are engaged in the anti-loosening slots and fixed to the corresponding keyways with bolts. This design uses stepped key blocks embedded and fixed to the cone body, which is safer. Furthermore, the spring and guide rod in this design are limited by anti-loosening blocks, preventing loosening due to impact during operation.
[0005] In the above solution, the springs and guide rods are limited by anti-loosening blocks. After long-term use, the springs will be in a state of fatigue, their elastic modulus will decrease, their stiffness will weaken, and they will be unable to return to their original shape or provide the elastic force required by the design. This will cause the connection of the single key and double key to loosen, so the springs need to be replaced many times, making the single key and double key unusable for a long time. Utility Model Content
[0006] The purpose of this invention is to provide a movable key cone for a thin slitting device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a movable key cone for a thin longitudinal shearing device, comprising a key body and a cone, wherein a connecting rod is welded to the left side surface of the cone, and the key body is installed inside the cone.
[0008] The key body includes a metal circular plate, a metal shell welded to the left side surface of the metal circular plate, and a limit component installed on the inner wall surface of the metal circular plate.
[0009] The limiting assembly includes a single key body, a limiting plug is welded to the inner wall surface of the single key body, a metal plug is slidably connected to the inner wall surface of the limiting plug, a metal rod is inserted into the left end of the metal plug, a metal slider is fixedly connected to the outward side surface of the metal rod, a limiting shell is connected to the surface of the metal slider, and a fastening bolt rod is inserted into the middle position of the limiting shell.
[0010] Preferably, the metal slider is slidably connected to the left side surface of the metal circular plate.
[0011] Preferably, the limiting block is inserted into the inner wall surface of the cone head, and the metal block is inserted into the left end of the cone head. The metal block and the limiting block are inserted into the interior of the cone head, and the metal block limits and fixes the metal block and the limiting block, making it convenient to disassemble and replace the metal block and the limiting block.
[0012] Preferably, the metal circular plate is slidably connected to the right end of the connecting rod, and the metal circular plate is movably connected to the left side surface of the cone head. The metal circular plate slides on the surface of the connecting rod, which facilitates the adjustment of the position of the metal circular plate.
[0013] Preferably, the limiting shell is welded to the left side surface of the metal circular plate, the limiting shell is movably connected to the surface of the metal shell, and the metal circular plate determines the position of the limiting shell and the metal shell.
[0014] Preferably, the metal plug is inserted into the inner wall surface of the metal shell, and the metal plug is inserted into the inward end of the limiting shell. The metal plug and the metal shell determine the position of the metal plug and keep the metal plug stable.
[0015] Preferably, the metal plug is inserted into the middle of the metal casing, and the metal plug is inserted into the connection between the metal plug and the metal casing to limit the metal plug, making it easy to disassemble the metal plug and protecting the safety of the metal plug.
[0016] Preferably, the fastening bolt is inserted into the middle position of the metal slider, and the fastening bolt locks and fixes the metal slider and the limiting shell, allowing the metal slider to slide on the surface of the metal circular plate and the fastening bolt, making it convenient to disassemble and replace the metal slider.
[0017] Preferably, the metal plug is inserted into the left end of the connecting rod, and the metal plug and the connecting rod fix the metal plug block, protect the safety of the metal plug block, and increase the service life of the metal plug block.
[0018] Compared with the prior art, the beneficial effects of this utility model are: This thin slitting device uses a movable key cone head, and is equipped with a metal slider, a metal rod, a metal block, and a metal shell. The metal rod is inserted into the right end of the connecting rod and the left end of the metal block. The metal rod limits and fixes the metal block and the connecting rod, and determines the position of the single key body and the limiting block. This can prevent the connection of the single key from becoming loose, eliminate the need to disassemble the single key multiple times, and increase the service life of the single key.
[0019] This thin longitudinal shearing device uses a movable key cone head, and is equipped with a metal slider, a fastening bolt rod, and a fastening bolt rod. The fastening bolt rod locks and fixes the metal slider and the limiting shell, thus determining the position of the metal slider and facilitating its disassembly and replacement. The fastening bolt rod and the limiting shell limit and fix the metal slider, making the connection between the limiting block and the metal block more stable. Attached Figure Description
[0020] Figure 1 This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is a front view schematic diagram of the present utility model; Figure 3 This utility model Figure 2 Schematic diagram of the cross section at point AA; Figure 4 This utility model Figure 3 A magnified view of the structure at point A in the diagram; Figure 5 This is a three-dimensional schematic diagram of the key body of this utility model; Figure 6 This utility model Figure 5 A magnified view of the structure at point B in the diagram.
[0021] In the diagram: 1. Key body; 11. Metal circular plate; 12. Metal outer shell; 13. Limiting assembly; 131. Single key body; 132. Limiting insert; 133. Metal insert; 134. Metal slider; 135. Metal rod; 136. Fastening bolt rod; 137. Limiting outer shell; 2. Connecting rod; 3. Cone head. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-6 The present invention provides the following technical solution: A movable key cone for a thin slitting device includes a key body 1 and a cone 3. A connecting rod 2 is welded to the left side surface of the cone 3, and the key body 1 is installed inside the cone 3.
[0024] The key body 1 includes a metal circular plate 11, a metal shell 12 welded to the left side surface of the metal circular plate 11, the metal circular plate 11 is slidably connected to the right end of the connecting rod 2, the metal circular plate 11 is movably connected to the left side surface of the cone head 3, the metal circular plate 11 slides on the surface of the connecting rod 2 to facilitate adjustment of the position of the metal circular plate 11, and a limit component 13 is installed on the inner wall surface of the metal circular plate 11.
[0025] The limiting component 13 includes a single key body 131. A limiting plug 132 is welded to the inner wall surface of the single key body 131. A metal plug 133 is slidably connected to the inner wall surface of the limiting plug 132. The limiting plug 132 is inserted into the inner wall surface of the cone head 3. The metal plug 133 is inserted into the left end of the cone head 3. The metal plug 133 and the limiting plug 132 are inserted into the interior of the cone head 3. The metal plug 133 limits and fixes the metal plug 133 and the limiting plug 132, making it convenient to disassemble and replace the metal plug 133 and the limiting plug 132.
[0026] A metal rod 135 is inserted into the left end of the metal plug 133. The metal rod 135 is inserted into the left end of the connecting rod 2. The metal rod 135 and the connecting rod 2 fix the metal plug 133, protect the safety of the metal plug 133, and increase the service life of the metal plug 133. The metal plug 133 is inserted into the inner wall surface of the metal shell 12. The metal plug 133 is inserted into the inward end of the limiting shell 137. The metal plug 133 and the metal shell 12 determine the position of the metal plug 133 and keep the metal plug 133 stable.
[0027] A metal slider 134 is fixedly connected to the outer surface of the metal rod 135. The metal rod 135 is inserted into the middle position of the metal shell 12. The metal rod 135 is inserted into the connection between the metal block 133 and the metal shell 12, limiting the position of the metal block 133, making it easy to disassemble the metal block 133 and protecting the safety of the metal block 133. The metal slider 134 is slidably connected to the left side surface of the metal circular plate 11.
[0028] A limiting housing 137 is connected to the surface of the metal slider 134. A fastening bolt rod 136 is inserted into the middle position of the limiting housing 137. The fastening bolt rod 136 is inserted into the middle position of the metal slider 134 and locks the metal slider 134 and the limiting housing 137 together, allowing the metal slider 134 to slide on the surface of the metal circular plate 11 and the fastening bolt rod 136, making it easy to disassemble and replace the metal slider 134. The limiting housing 137 is welded to the left side surface of the metal circular plate 11 and is movably connected to the surface of the metal housing 12. The metal circular plate 11 determines the position of the limiting housing 137 and the metal housing 12.
[0029] When in use, turn the nut, and the nut will disengage from the fastening bolt rod 136. Pull the fastening bolt rod 136 outward to move it away from the metal slider 134 and the limiting housing 137, and the connection between the metal slider 134 and the limiting housing 137 will become loose.
[0030] Pull the metal slider 134 outward, and the metal slider 134 slides on the left side surface of the metal circular plate 11, allowing the metal slider 134 to disengage from the metal circular plate 11 and the limiting shell 137.
[0031] The metal slider 134 drives the metal rod 135 to move outward, and the metal rod 135 disengages from the metal block 133 and the metal shell 12, loosening the connection between the metal block 133 and the metal shell 12.
[0032] Pull the single key body 131 to move to the right. The single key body 131 drives the limiting plug 132 to move to the right. The limiting plug 132 drives the metal plug 133 to move to the right. The metal plug 133 slides on the inner wall surface of the cone head 3, allowing the limiting plug 132 and the metal plug 133 to disengage from the cone head 3.
[0033] When the metal insert 133 moves to the right, it slides on the inner wall of the metal circular plate 11 and the metal outer shell 12, making it easy to disassemble and replace the metal insert 133, and making the replacement of the single key body 131 and the limiting insert 132 faster and more convenient.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A movable key cone for a thin slitting device, comprising a key body (1) and a cone (3), characterized in that: A connecting rod (2) is welded to the left side surface of the cone (3), and the key body (1) is installed inside the cone (3); The key body (1) includes a metal circular plate (11), a metal shell (12) is welded to the left side surface of the metal circular plate (11), and a limit component (13) is installed on the inner wall surface of the metal circular plate (11). The limiting component (13) includes a single key body (131), a limiting plug (132) is welded to the inner wall surface of the single key body (131), a metal plug (133) is slidably connected to the inner wall surface of the limiting plug (132), a metal rod (135) is inserted into the left end of the metal plug (133), a metal slider (134) is fixedly connected to the outward side surface of the metal rod (135), a limiting shell (137) is connected to the surface of the metal slider (134), and a fastening bolt rod (136) is inserted into the middle position of the limiting shell (137).
2. The movable key cone head for a thin slitting device according to claim 1, characterized in that: The metal slider (134) is slidably connected to the left side surface of the metal circular plate (11).
3. The movable key cone head for a thin slitting device according to claim 2, characterized in that: The limiting plug (132) is inserted into the inner wall surface of the cone (3), and the metal plug (133) is inserted into the left end of the cone (3).
4. The movable key cone head for a thin slitting device according to claim 3, characterized in that: The metal circular plate (11) is slidably connected to the right end of the connecting rod (2), and the metal circular plate (11) is movably connected to the left side surface of the cone (3).
5. The movable key cone head for a thin slitting device according to claim 4, characterized in that: The limiting shell (137) is welded to the left side surface of the metal circular plate (11), and the limiting shell (137) is movably connected to the surface of the metal shell (12).
6. The movable key cone head for a thin slitting device according to claim 5, characterized in that: The metal plug (133) is inserted into the inner wall surface of the metal shell (12), and the metal plug (133) is inserted into the inward end of the limiting shell (137).
7. The movable key cone head for a thin slitting device according to claim 6, characterized in that: The metal insert (135) is inserted into the middle position of the metal casing (12).
8. The movable key cone head for a thin slitting device according to claim 7, characterized in that: The fastening bolt rod (136) is inserted into the middle position of the metal slider (134).
9. A movable key cone for a thin slitting device according to claim 8, characterized in that: The metal insert (135) is inserted into the left end of the connecting rod (2).
Citation Information
Patent Citations
Movable key conical head for thin slitting device
CN218532470U