Film cutting tool

Abstract

The utility model belongs to the technical field of geomembrane cutting, and discloses a thin film cutting tool which comprises a base, a connecting block, a hob and a driving part, and the base is used for being placed on the upper surface of a thin film; the connecting block can slide relative to the base; the hobbing cutter is arranged on the connecting block and can rotate relative to the base, a blade of the hobbing cutter is used for cutting a film and arranged on the periphery of the hobbing cutter, and the lower portion of the hobbing cutter extends out of the base all the time, so that when the connecting block slides relative to the base, the hobbing cutter can be driven to move relative to the base, and the film is cut through the blade, extending out of the base, below the hobbing cutter; the hob can rotate relative to the base if subjected to large resistance when cutting the film, so that the hob rolls relative to the film and cuts the film, the resistance generated when the hob moves can be reduced, and the driving piece is used for driving the connecting block to slide relative to the base, so that the hob is driven to move, and cutting is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of geomembrane cutting, in particular to a film cutting tooling. Background Art

[0002] A geomembrane is a protective part used to prevent electrolyte leakage in a flow battery. After the production of the geomembrane is completed, it is necessary to cut the geomembrane so that its size fits the battery. At present, the geomembrane is usually measured in size by an operator using a meter stick, and positioned and cut using a steel ruler and a craft knife. Due to the limited length of the steel ruler, multiple cuts are usually required, which is time-consuming and laborious and has low efficiency.

[0003] For the cutting of films such as geomembranes, the prior art provides a cutting mechanism. The cutting tool is arranged on a cutting tool holder, the cutting tool holder is arranged on a moving guide rail, and a cutting drive motor is connected to the cutting tool holder and drives the cutting tool holder to move on the moving guide rail to drive the cutting tool to move. However, the problem is that when the cutting tool holder moves relative to the moving guide rail and cuts the film, there are relatively large movement resistances between the cutting tool holder and the guide rail and between the cutting tool and the film. Summary of the Utility Model

[0004] The utility model provides a film cutting tooling to solve the problem that when the cutting tool holder moves relative to the moving guide rail and cuts the film in the prior art, there are relatively large movement resistances between the cutting tool holder and the guide rail and between the cutting tool and the film.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] The film cutting tooling includes:

[0007] A base for placing on the upper surface of the film;

[0008] A connecting block capable of sliding relative to the base;

[0009] A hob arranged on the connecting block and capable of rotating relative to the base. The cutting edge of the hob is used for cutting the film and is arranged on the outer circumference of the hob. The lower part of the hob always extends out of the base;

[0010] A driving member for driving the connecting block to slide relative to the base.

[0011] As a preferred solution of the film cutting tooling, the connecting block is in rolling fit with the base, and the hob is fixedly arranged on the connecting block.

[0012] As a preferred solution of the film cutting tooling, the driving member is a hand push rod that can rotate relative to the connecting block, and the hand push rod is used to drive the connecting block to slide relative to the base.

[0013] As a preferred solution of the film cutting tooling, an intermediate shaft is rotatably connected to the connecting block, and the hand push rod is fixedly connected to the intermediate shaft.

[0014] As a preferred solution of the film cutting tooling, the base has a chute, and the connecting block is in rolling fit with the side wall of the chute and can slide relative to the base along the chute.

[0015] As a preferred solution of the film cutting tooling, the rotary cutter is arranged between the connecting block and the hand push rod.

[0016] As a preferred solution of the film cutting tooling, a clamping mechanism is further included, and the clamping mechanism is used to clamp the film.

[0017] As a preferred solution of the film cutting tooling, the clamping mechanism includes a pressing plate fixedly arranged on the base and a pressing bolt threadedly connected to the pressing plate. The head of the pressing bolt can move in the direction close to the pressing plate so that the head of the pressing bolt and the pressing plate clamp the film.

[0018] As a preferred solution of the film cutting tooling, the base is provided with scale marks.

[0019] As a preferred solution of the film cutting tooling, two handles are further included. Along the direction in which the connecting block slides relative to the base, the two handles are respectively arranged at both ends of the base.

[0020] The beneficial effects of the present utility model are:

[0021] The present utility model provides a film cutting tooling, which includes a base, a connecting block, a rotary cutter and a driving member. The base is used to be placed on the upper surface of the film; the connecting block can slide relative to the base; the rotary cutter is arranged on the connecting block and can rotate relative to the base. The cutting edge of the rotary cutter is used to cut the film and is arranged on the outer periphery of the rotary cutter. The lower part of the rotary cutter always extends out of the base. Thus, when the connecting block slides relative to the base, it can drive the rotary cutter to move relative to the base, and cut the film with the cutting edge extending out of the base below. At the same time, when the rotary cutter is cutting the film and receives a large resistance, it can rotate relative to the base so that the rotary cutter rolls relative to the film and cuts the film, which can reduce the resistance during the movement of the rotary cutter. The driving member is used to drive the connecting block to slide relative to the base, thereby driving the rotary cutter to move and realizing cutting. Description of the Drawings

[0022] Figure 1 is a structural schematic diagram of the film cutting tooling in the embodiment of the present utility modelFigure 1 ;

[0023] Figure 2 is Figure 1 the enlarged view of part A in

[0024] Figure 3 the structural schematic diagram of the film cutting tooling in the embodiment of the present utility model Figure 2 ;

[0025] Figure 4 is Figure 3 the enlarged view of part B in

[0026] In the figure:

[0027] 1. Base; 11. Slide groove;

[0028] 2. Connecting block; 21. Intermediate shaft;

[0029] 3. Hob;

[0030] 4. Hand push rod; 41. Connecting bolt;

[0031] 5. Clamping mechanism; 51. Pressing plate; 52. Compression bolt;

[0032] 6. Handle. Detailed implementation manners

[0033] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left" and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] Currently, for geomembranes, the size is usually measured by an operator using a meter stick, and positioning and cutting are carried out using a steel ruler and a utility knife. Due to the limited length of the steel ruler, multiple cuts are usually required, which is time-consuming and laborious, and has low efficiency. For the cutting of films such as geomembranes, the prior art provides a cutting mechanism. The cutting tool is arranged on a cutting tool holder, the cutting tool holder is arranged on a moving guide rail, and a cutting driving motor is connected to the cutting tool holder and drives the cutting tool holder to move on the moving guide rail to drive the cutting tool to move. However, the problem is that when the cutting tool holder moves relative to the moving guide rail and cuts the film, there are relatively large movement resistances between the cutting tool holder and the guide rail and between the cutting tool and the film.

[0038] In view of this, this embodiment provides a film cutting tooling to solve the problem that when the cutting tool holder in the prior art moves relative to the moving guide rail and cuts the film, there are relatively large movement resistances between the cutting tool holder and the guide rail and between the cutting tool and the film, and it can be used in the technical field of geomembrane cutting.

[0039] Refer to Figures 1 - 4, The film cutting tooling is used to cut films, specifically for cutting geomembranes in this embodiment. The film cutting tooling includes a base 1, a connecting block 2, a hob 3 and a driving member. The base 1 is used to be placed on the upper surface of the film; the connecting block 2 can slide relative to the base 1; the hob 3 is arranged on the connecting block 2 and can rotate relative to the base 1. The cutting edge of the hob 3 is used to cut the film and is arranged on the outer circumference of the hob 3. The lower part of the hob 3 always extends out of the base 1. Thus, when the connecting block 2 slides relative to the base 1, it can drive the hob 3 to move relative to the base 1, and cut the film with the cutting edge extending out of the base 1 below. At the same time, if the hob 3 encounters a large resistance when cutting the film, it can rotate relative to the base 1 so that the hob 3 rolls relative to the film and cuts the film, which can reduce the resistance when the hob 3 moves. The driving member is used to drive the connecting block 2 to slide relative to the base 1, thereby driving the hob 3 to move and achieve cutting.

[0040] Continue to refer to Figures 1 - 4 , The connecting block 2 is in rolling cooperation with the base 1, and the hob 3 is fixedly arranged on the connecting block 2. In this embodiment, the connecting block 2 contacts the base 1, and a certain frictional resistance will be generated when the two move relatively. Therefore, when the driving member drives the connecting block 2 to move, under the combined action of the frictional resistance between the connecting block 2 and the base 1 and the resistance when the hob 3 contacts the film, the connecting block 2 rolls relative to the base 1, and then drives the hob 3 to rotate relative to the base 1.

[0041] As an alternative solution, it can also be that the connecting block 2 can only slide relative to the base 1 and cannot rotate relative to the base 1, and the hob 3 is rotatably arranged on the connecting block 2. In this solution, when the driving member drives the connecting block 2 to slide, the resistance when the hob 3 contacts the film drives the hob 3 to rotate.

[0042] Another problem existing in the prior art is that a dedicated cutting drive motor needs to be set, and the transmission structure is complex. In this regard, continue to refer to Figures 1 - 4 , The driving member is a hand push rod 4 that can rotate relative to the connecting block 2. The hand push rod 4 is used to drive the connecting block 2 to slide relative to the base 1. The user can drive the connecting block 2 and the hob 3 to move by holding the hand push rod 4 and pushing the hand push rod 4 to complete cutting.

[0043] Continue to refer to Figures 1 - 4 , The connecting block 2 is rotatably connected with an intermediate shaft 21, and the hand push rod 4 is fixedly connected to the intermediate shaft 21. Specifically, in this embodiment, it is fixedly connected to the intermediate shaft 21 through a connecting bolt 41. The intermediate shaft 21 can serve as the rotating shaft of the connecting block 2. The hand push rod 4 pushes the intermediate shaft 21 to move, and then drives the connecting block 2 to roll relative to the base 1.

[0044] Continue to refer to Figures 1 - 4, the base 1 is provided with a chute 11. The connecting block 2 is in rolling fit with the side wall of the chute 11 and can slide relative to the base 1 along the chute 11. Thus, certain protection can be provided for the movement of the connecting block 2 through the chute 11, and the connecting block 2 can be limited by the side walls on both sides of the chute 11, making its movement relative to the base 1 more stable. Optionally, both ends of the chute 11 along its extending direction are provided with groove walls, and the groove walls at both ends can limit the movement of the connecting block 2 to prevent it from slipping out of the chute 11 along both ends of the chute 11.

[0045] Continue to refer to Figures 1 - 4 , the hob 3 is arranged between the connecting block 2 and the hand push rod 4. In addition, the intermediate shaft 21 penetrates through the hob 3 and is rotatably connected to the hob 3. With such an arrangement, the positions of the hob 3 and the hand push rod 4 are close, which is convenient for the user to align the hob 3 with the position to be cut of the film and is convenient for operation.

[0046] During the process of cutting the film, it is necessary for the base 1 to be always in close contact with the film to complete the alignment. However, both the base 1 and the hand push rod 3 are manually operated, and it may cause the base 1 to shift relative to the film due to uneven force application during the process of the user pushing the hand push rod 4. In this regard, in this embodiment, the film cutting tooling further includes a clamping mechanism 5 for clamping the film, thereby avoiding the base 1 from shifting relative to the film.

[0047] Continue to refer to Figures 1 - 4 , the clamping mechanism 5 includes a pressing plate 51 fixedly arranged on the base 1 and a pressing bolt 52 threadedly connected to the pressing plate 51. The head of the pressing bolt 52 can move along the direction close to the pressing plate 51 so that the head of the pressing bolt 52 clamps the film with the pressing plate 51. The film is clamped by screwing the pressing bolt 52. In addition, the pressing bolt 52 can also be screwed in the reverse direction so that the head of the pressing bolt 52 moves along the direction away from the pressing plate 51, so that the head of the pressing bolt 52 and the pressing plate 51 release the clamping of the film. Optionally, the pressing plate 51 and the hob 3 are respectively arranged on both sides of the base 1, thereby preventing the pressing plate 51 and the pressing bolt 52 from interfering with the movement of the hob 3.

[0048] As an alternative solution, the clamping mechanism 5 can also be composed of an upper clamping jaw and a lower clamping jaw. The upper clamping jaw and the lower clamping jaw are used to clamp the film, and the upper clamping jaw and the lower clamping jaw can be connected by structures such as elastic members, so that the two always have a tendency to approach each other and clamp the film.

[0049] Continue to refer to Figures 1 - 4 , the base 1 is provided with scale marks, so that when the user places the base 1 on the film, the position of the hob 3 relative to the base 1 can be known through the scale marks, and the position to be cut can be quickly located, which is convenient for actual operation.

[0050] Continue to refer toFigures 1 - 4 , the film cutting tooling further includes two handles 6. Along the direction in which the connecting block 2 slides relative to the base 1, the two handles 6 are respectively arranged at both ends of the base 1, so as to facilitate the user to respectively control the two handles 6 with both hands, and then place the base 1 above the film, and facilitate fine-tuning the position and angle of the base 1.

[0051] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Film cutting tooling, characterized in that, Comprising: A base (1) for placing on the upper surface of the film; A connecting block (2) capable of sliding relative to the base (1); A hob (3) provided on the connecting block (2) and capable of rotating relative to the base (1). The cutting edge of the hob (3) is used for cutting the film and is provided on the outer periphery of the hob (3). The lower part of the hob (3) always protrudes from the base (1); A driving member for driving the connecting block (2) to slide relative to the base (1).

2. The film cutting tooling according to claim 1, wherein, The connecting block (2) is in rolling cooperation with the base (1), and the hob (3) is fixedly provided on the connecting block (2).

3. The film cutting tooling according to claim 1, wherein The driving member is a hand push rod (4) capable of rotating relative to the connecting block (2), and the hand push rod (4) is used for driving the connecting block (2) to slide relative to the base (1).

4. The film cutting tooling according to claim 3, characterized in that, The connecting block (2) is rotatably connected with an intermediate shaft (21), and the hand push rod (4) is fixedly connected to the intermediate shaft (21).

5. The film cutting tooling according to claim 3, wherein The base (1) has a chute (11), and the connecting block (2) is in rolling cooperation with the side wall of the chute (11) and can slide relative to the base (1) along the chute (11).

6. The film cutting tooling according to claim 5, wherein The hob (3) is arranged between the connecting block (2) and the hand push rod (4).

7. The film cutting tooling according to any one of claims 1-6, characterized in that, It further includes a clamping mechanism (5) for clamping the film.

8. The film cutting tooling according to claim 7, wherein The clamping mechanism (5) includes a pressing plate (51) fixedly provided on the base (1) and a pressing bolt (52) threadedly connected to the pressing plate (51). The head of the pressing bolt (52) can move in a direction close to the pressing plate (51) so that the head of the pressing bolt (52) and the pressing plate (51) clamp the film.

9. The film cutting tooling according to any one of claims 1-6, characterized in that, The base (1) is provided with scale marks.

10. The film cutting tooling according to any one of claims 1-6, characterized in that, It further includes two handles (6). Along the direction in which the connecting block (2) slides relative to the base (1), the two handles (6) are respectively arranged at both ends of the base (1).

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