Knife roll mandrel convenient to replace

Abstract

The utility model provides a knife roll mandrel convenient to replace, which belongs to the technical field of knife roll mandrels and comprises a knife roll mandrel, a plurality of fixing heads slidably connected in the knife roll mandrel, blades fixedly connected to the lower ends of the fixing heads, a plurality of first fixing grooves formed in the knife roll mandrel, and a plurality of second fixing grooves formed in the knife roll mandrel. By means of the device, the problem that a blade of a traditional knife roll mandrel cannot be rapidly replaced is solved, the situation that the blade is difficult to adjust is avoided, and if the blade replacement process is complex, the blade replacement time is shortened, and the blade replacement efficiency is improved. The problems that the cutting quality is unstable and the qualified rate of products is affected due to the fact that the position of the blade is difficult to adjust or a new blade is difficult to replace each time are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutter roller core shafts, and particularly relates to a cutter roller core shaft which is easy to replace. Background Art

[0002] The cutter roller core shaft usually refers to a key component used to fix and support the cutting blade in specific mechanical equipment. It is commonly found in industrial equipment that requires cutting operations, such as papermaking machinery, wood processing machinery, and plastic film processing equipment. The cutter roller core shaft is usually a circular shaft structure. Its main function is to maintain the stability of the cutting blade during rotation and ensure accuracy and smoothness during the cutting process.

[0003] In the existing technology, the traditional knife roller core shaft does not achieve rapid replacement of blades, which will make blade adjustment difficult. If the process of replacing the blade is complicated, it will become difficult to adjust the position of the blade or replace a new blade each time, which may lead to unstable cutting quality and affect the product qualification rate. Utility Model Content

[0004] The purpose of the utility model is to provide a knife roller core shaft that is easy to replace, aiming to solve the problem that the traditional knife roller core shaft in the prior art cannot achieve quick replacement of blades, which will make blade adjustment difficult. If the process of replacing the blade is complicated, it will become difficult to adjust the position of the blade or replace a new blade each time, which may lead to unstable cutting quality and affect the product qualification rate.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A knife roller core shaft that is easy to replace includes:

[0007] Knife roller core shaft;

[0008] A fixed head, wherein a plurality of the fixed heads are provided, and the plurality of fixed heads are all slidably connected to the core shaft of the knife roller;

[0009] Blades, each of which is fixedly connected to the lower ends of the plurality of fixed heads;

[0010] a first fixing groove, wherein a plurality of the first fixing grooves are provided, and the plurality of the first fixing grooves are all opened in the core shaft of the knife roller;

[0011] A locking rod is provided in plurality, and the plurality of locking rods are respectively slidably connected to the plurality of fixing heads and the first fixing groove.

[0012] As a preferred solution of the present invention, a plurality of second fixing grooves are respectively opened in the locking rod, and a plurality of locks are respectively slidably connected in the plurality of second fixing grooves.

[0013] As a preferred solution of the present invention, multiple first sliding grooves are opened in the knife roller core shaft, multiple sliders are slidably connected in the multiple first sliding grooves, multiple connectors are fixedly connected to the outer surfaces of the multiple sliders, and multiple connectors are fixedly connected to the rear ends of the multiple locks.

[0014] As a preferred solution of the present invention, the upper ends of the plurality of connectors are respectively fixedly connected with a plurality of springs, the core shaft of the knife roller is respectively fixedly connected with a spring, and the upper ends of the plurality of locks are respectively fixedly connected with a plurality of pull rings.

[0015] As a preferred solution of the present invention, a bearing is fixedly connected to the core shaft of the knife roller, and a support frame is provided on the lower side of the bearing.

[0016] As a preferred solution of the present invention, a plurality of second sliding grooves are provided in the core shaft of the knife roller, and a plurality of fixed heads are slidably connected in the plurality of second sliding grooves respectively.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this solution, the position of the locking device in the locking rod can be changed by the sliding connection of the slider in the first sliding groove. When the locking device moves, it drives the connector, and the slider slides along the first sliding groove through the connector, thereby locking and unlocking the fixed head, thereby facilitating rapid replacement of the blade. This design simplifies the replacement process and shortens maintenance time.

[0019] 2. In this solution, the problem that the traditional knife roller core shaft cannot quickly replace the blade is solved by using this device, thereby avoiding the difficulty of blade adjustment. If the process of replacing the blade is complicated, it will become difficult to adjust the position of the blade or replace a new blade each time, which may lead to unstable cutting quality and affect the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a side perspective view of the present utility model;

[0022] Figure 2 This is the first exploded view of the present invention;

[0023] Figure 3 It is a cross-sectional view of the utility model;

[0024] Figure 4This is the second exploded view of the present invention;

[0025] In the figure: 1. knife roller core shaft; 2. fixed head; 3. blade; 301. first fixed groove; 4. locking rod; 5. second fixed groove; 6. lock; 7. first sliding groove; 8. slider; 9. connector; 10. spring; 11. pull ring; 12. bearing; 13. support frame; 14. second sliding groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example

[0028] See also Figures 1-4 , the utility model provides the following technical solutions:

[0029] A knife roller core shaft that is easy to replace includes:

[0030] Knife roller core shaft 1;

[0031] A fixed head 2, wherein a plurality of fixed heads 2 are provided, and the plurality of fixed heads 2 are all slidably connected to the knife roller core shaft 1;

[0032] Blades 3, each of which is fixedly connected to the lower end of the plurality of fixed heads 2;

[0033] A first fixing groove 301, wherein a plurality of first fixing grooves 301 are provided, and the plurality of first fixing grooves 301 are all opened in the knife roller core shaft 1;

[0034] The locking rod 4 is provided in plurality, and the plurality of locking rods 4 are respectively slidably connected to the plurality of fixing heads 2 and the first fixing groove 301 .

[0035] In a specific embodiment of the present invention, when the blade 3 needs to be replaced, the fixed head 2 can be unlocked by sliding the locking rod 4, so that the fixed head 2 can move freely in the knife roller core shaft 1, thereby achieving the purpose of quickly replacing the blade 3; the advantage of this device is that it simplifies the operating process of blade replacement, reduces downtime and manual labor intensity, and at the same time ensures the continuity of cutting work and the stability of cutting quality, thereby improving the overall operating efficiency of the equipment.

[0036] For details, please refer to Figures 1-4 A plurality of second fixing grooves 5 are respectively provided in the locking rod 4, and a plurality of locks 6 are respectively slidably connected in the plurality of second fixing grooves 5.

[0037] In this embodiment, the position of the locking rod 4 can be locked or unlocked by the sliding connection of the lock 6 in the second fixed groove 5. When the blade 3 needs to be replaced, the lock 6 is operated to disengage it from the locked state, allowing the locking rod 4 to slide, thereby allowing the fixed head 2 to move, making it easy to quickly replace the blade 3. This design simplifies the replacement process, reduces replacement time, and improves the efficiency and safety of the equipment.

[0038] For details, please refer to Figures 1-4 A plurality of first sliding grooves 7 are provided in the knife roller core shaft 1, and a plurality of sliders 8 are slidably connected in the plurality of first sliding grooves 7. The outer surfaces of the plurality of sliders 8 are fixedly connected with a plurality of connectors 9, and the rear ends of the plurality of locks 6 are fixedly connected with a plurality of connectors 9.

[0039] In this embodiment, the position of the lock 6 in the locking rod 4 can be changed by the sliding connection of the slider 8 in the first sliding groove 7. When the lock 6 moves, it drives the connector 9, and the slider 8 slides along the first sliding groove 7 through the connector 9, thereby achieving locking and unlocking of the fixed head 2, thereby facilitating quick replacement of the blade 3. This design simplifies the replacement process and shortens maintenance time.

[0040] For details, please refer to Figures 1-4 The upper ends of the multiple connectors 9 are respectively fixedly connected with multiple springs 10, the knife roller core shaft 1 is fixedly connected with a spring 10, and the upper ends of the multiple locks 6 are respectively fixedly connected with multiple pull rings 11.

[0041] In this embodiment: by pulling the pull ring 11, the lock 6 can overcome the elastic force of the spring 10 and slide in the second fixed groove 5, thereby changing the position of the lock 6 to unlock the locking rod 4. After unlocking, the fixed head 2 can move in the knife roller core shaft 1 to facilitate the replacement of the blade 3.

[0042] For details, please refer to Figures 1-4 A bearing 12 is fixedly connected to the knife roller core shaft 1, and a support frame 13 is provided on the lower side of the bearing 12.

[0043] In this embodiment, the bearing 12 is used to support the cutter roller core shaft 1 and reduce friction during rotation, and the support frame 13 is used to fix and support the bearing 12 to ensure the stability and balance of the cutter roller core shaft 1 during rotation.

[0044] For details, please refer to Figures 1-4 A plurality of second sliding grooves 14 are provided in the knife roller core shaft 1, and a plurality of fixed heads 2 are slidably connected in the plurality of second sliding grooves 14 respectively.

[0045] In this embodiment, the fixed head 2 can slide in the knife roller core shaft 1 through the sliding connection in the second sliding groove 14. When the blade 3 needs to be replaced, the fixed head 2 can be moved along the second sliding groove 14 to release the locked state.

[0046] When the blade 3 is replaced, the operator only needs to push the new blade 3 into the cutter roller core shaft 1 through the fixed head 2, so that the fixed head 2 can slide into the first sliding groove 7, and then release the pull ring 11 to allow the lock 6 to reset under the action of the spring 10, re-lock the locking rod 4, and complete the quick installation. This design simplifies the replacement process and improves the operating efficiency of the equipment. By using this device, the problem that the traditional cutter roller core shaft cannot realize quick replacement of blades is solved, thereby avoiding the difficulty of blade adjustment. If the process of replacing the blade is complicated, it will become difficult to adjust the position of the blade or replace a new blade each time, which may lead to unstable cutting quality and thus affect the qualified rate of the product.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A knife roller core shaft that is easy to replace, characterized in that include: Cutter roller core shaft (1); A fixed head (2), wherein a plurality of the fixed heads (2) are provided, and the plurality of fixed heads (2) are all slidably connected to the knife roller core shaft (1); Blades (3), each of the blades (3) is fixedly connected to the lower ends of the plurality of fixed heads (2); A first fixing groove (301), wherein a plurality of the first fixing grooves (301) are provided, and the plurality of the first fixing grooves (301) are all opened in the knife roller core shaft (1); A locking rod (4), wherein a plurality of the locking rods (4) are provided, and the plurality of locking rods (4) are respectively slidably connected to the plurality of fixing heads (2) and the first fixing groove (301).

2. The easily replaceable cutter roller core shaft according to claim 1, characterized in that: A plurality of second fixing grooves (5) are respectively provided in the locking rod (4), and a plurality of lockers (6) are respectively slidably connected in the plurality of second fixing grooves (5).

3. The easily replaceable cutter roller core shaft according to claim 2, characterized in that: A plurality of first sliding grooves (7) are provided in the knife roller core shaft (1), a plurality of sliders (8) are slidably connected in the plurality of first sliding grooves (7), a plurality of connectors (9) are fixedly connected to the outer surfaces of the plurality of sliders (8), and a plurality of connectors (9) are fixedly connected to the rear ends of the plurality of lockers (6).

4. The easily replaceable cutter roller core shaft according to claim 3, characterized in that: The upper ends of the plurality of connectors (9) are respectively fixedly connected with a plurality of springs (10), the knife roller core shaft (1) is respectively fixedly connected with a spring (10), and the upper ends of the plurality of lockers (6) are respectively fixedly connected with a plurality of pull rings (11).

5. The easily replaceable cutter roller core shaft according to claim 4, characterized in that: A bearing (12) is fixedly connected inside the knife roller core shaft (1), and a support frame (13) is provided on the lower side of the bearing (12).

6. The easily replaceable cutter roller core shaft according to claim 5, characterized in that: A plurality of second sliding grooves (14) are provided in the knife roller core shaft (1), and a plurality of fixed heads (2) are respectively slidably connected in the plurality of second sliding grooves (14).

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