Mounting structure of cutting knife

Abstract

The utility model provides a cutting knife installation structure which comprises a knife rest and a cutting knife body, the cutting knife body is provided with an installation hole, the cutting knife installation structure further comprises a connecting part and a U-shaped part installed on the connecting part in a sliding mode, and the cutting knife body is installed in a limiting area formed between the connecting part and the U-shaped part. A mounting hole is formed in the U-shaped part, a first threaded hole corresponding to the mounting hole is formed in the connecting part, a first locking bolt is in threaded connection with the end, used for making contact with the cutting knife body, of the U-shaped part, the first locking bolt is in threaded connection with the first threaded hole, and the U-shaped part is connected with the connecting part through the first locking bolt and fixes the cutting knife body; an adsorption hole is formed in the connecting part, and a sliding block is fixedly connected to the end, away from the cutting knife body, of the U-shaped part; the problem that in the prior art, a cutting knife is fixedly connected to a knife rest, and after the cutting knife is abraded after being used for a long time, the damaged cutting knife is inconvenient to replace can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting machines, in particular to a mounting structure of a cutting knife. Background Art

[0002] Slitting machine is a mechanical device that can cut wide paper, mica tape or film into multiple narrow materials. It is commonly used in papermaking machinery, wire and cable mica tape and printing and packaging machinery. It can cut a large roll of paper, film, non-woven fabric, aluminum foil, mica tape and other thin materials into small rolls of different widths. Slitting machine generally has two rollers, one roller puts the raw material, and the other end of the raw material is placed on the other roller. One roller discharges the material, and the other roller collects the material. The cutting device cuts the raw material into sections in the middle, so that a large roll of raw material is cut into small rolls.

[0003] In the prior art, when a film winding device with a slitting machine is working, the film is exposed to the outside and will be contaminated with dust, and the dust will cause the cleanliness of the film to decrease. In order to solve the problems existing in the prior art, the utility model with publication number CN220431704U discloses a film winding device with a slitting device (hereinafter referred to as: prior art 1), comprising a bottom plate, characterized in that: two support plates are fixedly connected to the left side of the top of the bottom plate, and the opposite ends of the support plates are each provided with a slide groove, and the inside of the slide groove is slidably connected to a slider, and the top of the slider is A spring is fixedly connected, and the top of the spring is fixedly connected to the inner wall of the top end of the support plate, two cleaning rollers are arranged at one end of the inner side of the support plate, the cleaning roller at the bottom end is rotatably connected to the bottom of the opposite end of the support plate, and the front and rear ends of the cleaning roller at the top end are rotatably connected to the opposite end of the slider, and a storage box is arranged at the opposite end of the cleaning roller, and the front and rear sides of the storage box at the top end are fixedly connected to the top of the inner end of the slider, and the front and rear sides of the storage box at the bottom end are fixedly connected to the bottom of the opposite end of the support plate, and an arc-shaped scraper is fixedly connected to the left side of the cleaning roller corresponding to the inner wall of the opposite end of the storage box.

[0004] In the prior art 1, although the dust on the surface of the film is cleaned by arranging the cleaning roller, the storage box and the arc-shaped scraper and other structures, the cutting knife in the prior art 1 is fixedly connected to the outer wall of the round rod, and it is not convenient to replace the damaged cutting knife after the cutting knife is worn out after long-term use. Utility Model Content

[0005] The utility model aims to provide a cutting knife installation structure, which can solve the problem in the prior art that the cutting knife is fixedly connected to the knife holder and it is inconvenient to replace the damaged cutting knife after the cutting knife is worn out after long-term use during actual use.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A cutting knife installation structure, comprising a knife holder and a cutting knife body, wherein the cutting knife body is provided with an installation hole, and further comprising a connecting portion and a U-shaped portion slidably mounted on the connecting portion, wherein the cutting knife body is installed in a limiting area formed between the connecting portion and the U-shaped portion;

[0008] The connecting portion is provided with a first threaded hole corresponding to the mounting hole, and a first locking bolt is threadedly connected to one end of the U-shaped portion for contacting the cutting knife body, and the first locking bolt is threadedly connected to the first threaded hole. The U-shaped portion is connected to the connecting portion through the first locking bolt and fixes the cutting knife body;

[0009] An adsorption hole is arranged on the connection part, a slider is fixedly connected to the end of the U-shaped part away from the cutting knife body, the slider is slidably installed in the adsorption hole, and a groove connected to the adsorption hole is arranged on the side of the connection part for contacting with the cutting knife body, and a rubber ring is installed in the groove.

[0010] Preferably, the adsorption hole is a conical hole, and the top hole diameter of the adsorption hole is smaller than the bottom hole diameter.

[0011] Preferably, the diameter of the sliding block is larger than the bottom hole diameter of the adsorption hole.

[0012] Preferably, the sliding block is made of rubber material.

[0013] Preferably, a positioning block is provided on the connecting portion, and the first threaded hole is provided on the positioning block.

[0014] Preferably, a sliding block is provided on the connecting portion, a sliding groove is provided on the tool holder, and the connecting portion is slidably mounted on the sliding groove via the sliding block.

[0015] Preferably, a second threaded hole is provided on the tool holder, and a second locking bolt is threadedly connected to the second threaded hole, and the second locking bolt is used to lock and fix the limit block.

[0016] Preferably, a spring is fixedly connected to the connecting portion, and one end of the spring away from the connecting portion is fixedly connected to the U-shaped portion.

[0017] Preferably, a limiting groove is provided on a surface of the connecting portion for contacting with the cutting blade body, and the limiting groove is used for further limiting the position of the connecting portion with the cutting blade body.

[0018] Preferably, the limiting groove is a stepped groove.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In the present invention, the cutting knife is placed in the limiting area formed between the U-shaped portion and the connecting portion, and the positioning hole provided on the cutting knife body is moved to a position corresponding to the first threaded hole;

[0021] After the cutting knife body is installed in the limiting area, the U-shaped part is pressed to make the U-shaped part move in the direction of the cutting knife body, and at this time, the U-shaped part can be further guided by the cooperation of the slider and the adsorption hole; when the first locking bolt threadedly connected to the U-shaped part moves into the first threaded hole along with the U-shaped part, the first locking bolt is rotated so that the U-shaped part drives the cutting knife body in the limiting area to contact with the rubber ring fixedly connected in the groove under the action of the first locking bolt, and the cutting knife body continues to move horizontally in the direction of the adsorption hole under the drive of the U-shaped part and further squeezes the rubber ring;

[0022] When the cutting knife body contacts the rubber ring and continues to move horizontally toward the adsorption hole to extrude the rubber ring, the slider fixedly connected to the end of the U-shaped portion away from the cutting knife body simultaneously moves in the direction away from the cutting knife body; after the cutting knife body contacts the rubber ring, the negative pressure generated in the adsorption hole as the slider moves can adsorb the cutting knife body and further fix and limit the cutting knife body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 It is a schematic diagram of the connection relationship between the U-shaped part and the connecting part in the utility model.

[0026] Figure 3 For this utility model Figure 2 A partial enlarged view of point A in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 101-cutting knife body, 102-mounting hole, 103-connecting part, 104-U-shaped part, 105-first threaded hole, 106-first locking bolt, 107-adsorption hole, 108-positioning block, 109-limiting block, 110-spring, 111-slider. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0035] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0036] Embodiment 1

[0037] See also Figure 1-Figure 3 This embodiment discloses a cutting knife installation structure, including a knife holder and a cutting knife body 101, the cutting knife body 101 is provided with a mounting hole 102, and also includes a connecting portion 103 and a U-shaped portion 104 slidably mounted on the connecting portion 103, and the cutting knife body 101 is installed in a limiting area formed between the connecting portion 103 and the U-shaped portion 104;

[0038] The connecting portion 103 is provided with a first threaded hole 105 corresponding to the mounting hole 102, and the end of the U-shaped portion 104 for contacting the cutting blade body 101 is threadedly connected with a first locking bolt 106, and the first locking bolt 106 is threadedly connected to the first threaded hole 105. The U-shaped portion 104 is connected to the connecting portion 103 through the first locking bolt 106 and fixes the cutting blade body 101;

[0039] The connecting portion 103 is provided with an adsorption hole 107, and a slider 111 is fixedly connected to the end of the U-shaped portion 104 away from the cutting knife body 101. The slider 111 is slidably installed in the adsorption hole 107. The connecting portion 103 is provided with a groove connected to the adsorption hole 107 on the side in contact with the cutting knife body 101, and a rubber ring is installed in the groove.

[0040] In the present invention, the cutting knife is placed in the limiting area formed between the U-shaped portion 104 and the connecting portion 103, and the positioning hole set on the cutting knife body 101 is moved to a position corresponding to the first threaded hole 105; the rubber ring fixedly installed in the groove extends to the outside of the groove close to the side of the cutting knife body 101, and after the cutting knife body 101 is installed in the limiting area, the U-shaped portion 104 is pressed to move the U-shaped portion 104 toward the direction of the cutting knife body 101. At this time, the slider 111 and the The cooperation of the adsorption hole 107 can further guide the U-shaped portion 104; after the first locking bolt 106 moves into the first threaded hole 105 along with the U-shaped portion 104, the first locking bolt 106 is rotated so that the U-shaped portion 104 drives the cutting knife body 101 in the limiting area to contact the rubber ring fixedly connected in the groove under the action of the first locking bolt 106, and the cutting knife body 101 continues to move horizontally toward the direction of the adsorption hole 107 under the drive of the U-shaped portion 104 and further squeezes the rubber ring. In the process of making the cutting knife body 101 contact with the rubber ring and continue to move horizontally toward the adsorption hole 107 to squeeze the rubber ring, the slider 111 fixedly connected to the end of the U-shaped part 104 away from the cutting knife body 101 moves in the direction away from the cutting knife body 101. After the cutting knife body 101 contacts with the rubber ring, the adsorption hole 107 generates negative pressure as the slider 111 moves, which adsorbs the cutting knife body 101, thereby further fixing and limiting the cutting knife body 101.

[0041] The top hole diameter of the adsorption hole 107 is smaller than the bottom hole diameter. The bottom hole of the adsorption hole 107 is arranged at an end away from the cutting blade body 101, the slider 111 is slidably installed in the bottom hole of the adsorption hole 107, the top hole of the adsorption hole 107 is arranged at an end close to the cutting blade body 101, and the adsorption hole 107 is connected to the limiting area.

[0042] Further optimization is that the diameter of the slider 111 is larger than the bottom hole diameter of the adsorption hole 107. By making the slider 111 and the adsorption hole 107 have an interference fit, the adsorption effect of the adsorption hole 107 on the cutting blade body 101 can be further improved.

[0043] The slider 111 is made of rubber material, which has good sealing performance, a smooth surface, and a small friction coefficient. When the slider 111 slides in the bottom hole of the adsorption hole 107, it can avoid causing wear to the inner wall of the bottom hole.

[0044] Embodiment 2

[0045] See also Figure 1-Figure 3This embodiment is further optimized on the basis of the first embodiment, a positioning block 108 is provided on the connection part 103, and the first threaded hole 105 is provided on the positioning block 108. The positioning block 108 is provided corresponding to the positioning hole provided on the connection part 103, and the cutting blade body 101 installed in the limiting area can be quickly positioned by the cooperation between the positioning block 108 and the positioning hole, so that the operator can improve the installation efficiency of the cutting blade body 101.

[0046] Among them, a limit block 109 is provided on the connection part 103, and a slide groove is provided on the knife holder, and the connection part 103 is slidably installed on the slide groove through the limit block 109. The slide groove is used to limit and guide the limit block 109, and by sliding the connection part 103 in the slide groove, the position of the cutting knife body 101 can be adjusted according to the actual needs, thereby changing the width of the material cutting.

[0047] Further optimization, a second threaded hole is provided on the knife holder, and a second locking bolt is threadedly connected in the second threaded hole, and the second locking bolt is used to lock and fix the limit block 109. A plurality of second threaded holes are used, and the second threaded holes are connected to the slide groove; after the connecting portion 103 and the cutting knife body 101 installed on the connecting portion 103 are adjusted to a preset position, the second locking bolt threadedly connected in the second threaded hole is rotated so that one end of the second locking bolt located in the slide groove is pressed against the limit block 109, thereby fixing the limit block 109.

[0048] The connecting portion 103 is fixedly connected with a spring 110, and one end of the spring 110 away from the connecting portion 103 is fixedly connected to the U-shaped portion 104. When the first locking bolt 106 is rotated so that the U-shaped portion 104 presses the cutting blade body 101 in the limiting area against the connecting portion 103 under the action of the first locking bolt 106, the spring 110 connecting the U-shaped portion 104 and the connecting portion 103 is compressed to play a buffering role.

[0049] Further optimization is provided on the side of the connection part 103 that contacts the cutting blade body 101, and the limiting groove is used for further limiting the cutting blade body 101. By providing the limiting groove, the cutting blade body 101 can be initially limited after being placed in the limiting area, so as to avoid displacement of the cutting blade body 101 during the limiting process of the cutting blade body 101 by the U-shaped part 104.

[0050] The limiting groove is a stepped groove. By providing the limiting groove with a stepped structure, the limiting groove can limit the cutting blade body 101 of different sizes.

[0051] Embodiment 3

[0052] See also Figure 1-Figure 3 This embodiment is basically the same as the first or second embodiment, except that, in this embodiment, the second threaded holes are arranged on the tool holder at equal intervals along the sliding direction of the stop block 109. By arranging the second threaded holes on the tool holder at equal intervals, the operator can more accurately adjust the position of the connection portion 103 and the cutting blade body 101 installed on the connection portion 103, so that the cutting blade body 101 can adjust the material cutting width according to actual needs.

[0053] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting knife installation structure, comprising a knife holder and a cutting knife body (101), wherein the cutting knife body (101) is provided with an installation hole (102), characterized in that: It also includes a connecting portion (103) and a U-shaped portion (104) slidably mounted on the connecting portion (103), and the cutting knife body (101) is mounted in a limiting area formed between the connecting portion (103) and the U-shaped portion (104); The connecting portion (103) is provided with a first threaded hole (105) corresponding to the mounting hole (102); the U-shaped portion (104) is threadedly connected to one end thereof for contacting the cutting blade body (101); the first locking bolt (106) is threadedly connected to the first threaded hole (105); the U-shaped portion (104) is connected to the connecting portion (103) via the first locking bolt (106) and fixes the cutting blade body (101); The connecting portion (103) is provided with an adsorption hole (107), and a slider (111) is fixedly connected to one end of the U-shaped portion (104) away from the cutting blade body (101), and the slider (111) is slidably installed in the adsorption hole (107). A groove connected to the adsorption hole (107) is provided on the side of the connecting portion (103) that is used for contacting the cutting blade body (101), and a rubber ring is installed in the groove.

2. The installation structure of a cutting knife according to claim 1, characterized in that: The top pore diameter of the adsorption hole (107) is smaller than the bottom pore diameter.

3. The installation structure of a cutting knife according to claim 2, characterized in that: The diameter of the sliding block (111) is larger than the bottom hole diameter of the adsorption hole (107).

4. The installation structure of a cutting knife according to claim 3, characterized in that: The sliding block (111) is made of rubber material.

5. The installation structure of a cutting knife according to claim 1, characterized in that: A positioning block (108) is provided on the connecting portion (103), and the first threaded hole (105) is provided on the positioning block (108).

6. The installation structure of a cutting knife according to claim 1, characterized in that: A limiting block (109) is arranged on the connecting portion (103), a sliding groove is arranged on the tool holder, and the connecting portion (103) is slidably mounted on the sliding groove via the limiting block (109).

7. The installation structure of a cutting knife according to claim 6, characterized in that: A second threaded hole is provided on the tool holder, and a second locking bolt is threadedly connected to the second threaded hole. The second locking bolt is used to lock and fix the limit block (109).

8. The installation structure of a cutting knife according to claim 1, characterized in that: A spring (110) is fixedly connected to the connecting portion (103), and one end of the spring (110) away from the connecting portion (103) is fixedly connected to the U-shaped portion (104).

9. The installation structure of a cutting knife according to claim 1, characterized in that: A limiting groove is provided on a surface of the connecting portion (103) that is in contact with the cutting blade body (101), and the limiting groove is used for further limiting the position of the cutting blade body (101).

10. The installation structure of a cutting knife according to claim 9, characterized in that: The limiting groove is a stepped groove.

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