Angle control device of straight knife rest of slitting equipment

Abstract

The utility model relates to an angle control device of a straight knife rest of slitting equipment. The angle control device comprises a telescopic executing mechanism, a connecting rod, a clamping block and a protruding block. The protruding block is arranged at the end of the tool rest, and the clamping block and the protruding block are matched and meshed in shape. The telescopic executing mechanism and the connecting rod form a rocker sliding block mechanism; the movable end of the telescopic executing mechanism is connected with the connecting rod through a first hinge; the fixed end of the telescopic executing mechanism is connected with the rack through a second hinge; the connecting rods are fixedly connected with the clamping blocks through connecting shafts; the sum of the distance between the first hinge and the second hinge and the distance between the first hinge and the connecting shaft is smaller than the moving stroke of the telescopic executing mechanism. According to the angle control device, the telescopic executing mechanism, the connecting rod, the clamping block and the protruding block are matched, the swing amplitude of the straight knife rest is controlled by controlling the length relation between the movable stroke of the telescopic mechanism and the hinge, and the angle control device has the advantages of being simple in structure, easy to operate and the like.

Description

Technical Field

[0001] The utility model relates to an angle adjustment device, in particular to an angle control device for a straight knife holder of a slitting device. Background Art

[0002] The straight knife of the slitting equipment has a specific angle when cutting the film material. Figure 1 As shown, the angle adjustment in the past was done manually or automatically or in a combination of both. Figure 1 On the left side, the motor and worm gear are used to realize the rotation of the tool holder. Figure 1 On the middle right side is the manual adjustment mechanism, which is used with a ruler to fine-tune the angle to make up for the shortcomings of electric adjustment.

[0003] In the above scheme, if the straight knife needs to be replaced with a circular knife, the adjustment mechanism on both sides of the straight knife holder needs to be completely removed before replacing the circular knife holder. Alternatively, when replacing the circular knife with the straight knife, installation and adjustment are required, which is cumbersome and time-consuming. Utility Model Content

[0004] In view of the above situation, it is necessary to provide an angle control device that solves at least one of the above problems.

[0005] An angle control device for a straight knife holder of a slitting device comprises a telescopic actuator, a connecting rod, a clamping block and a protrusion; the protrusion is arranged at the end of the knife holder, and the shapes of the clamping block and the protrusion match and engage with each other;

[0006] The movable end of the telescopic actuator is connected to the connecting rod via a first hinge;

[0007] The fixed end of the telescopic actuator is connected to the frame via a second hinge;

[0008] The connecting rod is fixedly connected to the clamping block via a connecting shaft;

[0009] The difference between the distance from the second hinge to the rotation center of the connecting shaft and the distance from the first hinge to the rotation center of the connecting shaft is greater than the movable stroke of the movable end of the telescopic actuator.

[0010] As a further solution of the utility model: a straight-line slot is provided on the card block, and correspondingly, a straight-line protrusion is provided on the protrusion, and the card slot and the protrusion can be matched and engaged;

[0011] The protrusion can move along the length direction of the slot, so that the slot and the protrusion are engaged or separated.

[0012] As a further solution of the utility model: when the movable end of the telescopic actuator is extended, the angle of the tool holder is a cutting angle, and at this time, the slot and the protrusion are inseparable;

[0013] When the movable end of the telescopic actuator is retracted, the angle of the tool holder is a disassembly angle, and at this time, the slot and the protrusion can be separated.

[0014] As a further solution of the utility model: when the movable end of the telescopic actuator is extended, the angle of the tool holder is a disassembly angle, and at this time, the slot and the protrusion can be separated;

[0015] When the movable end of the telescopic actuator is retracted, the angle of the tool holder is a cutting angle, and at this time, the slot and the protrusion are inseparable.

[0016] As a further solution of the utility model: when at a disassembly angle or a cutting angle, the movable end of the telescopic actuator is fully extended or retracted.

[0017] As a further solution of the utility model: it also includes a flange seat, and the connecting shaft is assembled with the flange seat through a bearing;

[0018] The flange seat is fixedly arranged on the frame;

[0019] The flange seat is provided with a notch corresponding to the disassembly and assembly direction of the tool holder, so as to avoid air gap during the disassembly and assembly of the tool holder.

[0020] The above-mentioned angle control device adopts the cooperation of a telescopic actuator mechanism, a connecting rod, a block and a protrusion, and realizes the swing amplitude control of the straight knife holder by controlling the active stroke of the telescopic mechanism and the length relationship between the hinges. It has the advantages of simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a traditional solution in the background technology of the utility model;

[0022] Figure 2 It is a structural schematic diagram of an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the mechanism and the direction of action of the embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the installation state of the angle control mechanism of the embodiment of the utility model;

[0025] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0026] Figure 6It is a matching schematic diagram of the clamping block and the protruding block in the embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The utility model provides an angle control device for a straight knife holder of a slitting device, such as Figure 2 As shown, the telescopic actuator 100, the connecting rod 200, the block 300 and the protrusion 400 are included. The movable end 110 of the telescopic actuator 100 is connected to the connecting rod 200 through a first hinge 500, and the fixed end 120 of the telescopic actuator 100 is connected to the frame through a second hinge 600. The connecting rod 200 is fixedly connected to the block 300 through a connecting shaft 700. When the connecting rod 200 swings around the rotation axis of the connecting shaft 700, the block 300 rotates with the swing of the connecting rod 200. Furthermore, the rotation axes of the first hinge 500, the second hinge 600 and the connecting shaft 700 are parallel to each other.

[0031] Combination Figure 3As shown, the frame, telescopic actuator 100, connecting rod 200, combined with the first hinge 500, the second hinge 600 and the connecting shaft, constitute a multi-link mechanism. By driving the telescopic actuator 100, the connecting rod 200 can be controlled to swing around the connecting shaft. It should be noted that in mechanical design, the range of motion of the multi-link mechanism is often closely related to the length of the connecting rod. For example, the crank rocker mechanism, the double crank mechanism and the double rocker mechanism differ in the length relationship of the connecting rod. In this embodiment, the maximum distance between the first hinge 500 and the second hinge 600 is a, the minimum distance is a', the distance between the first hinge 500 and the connecting shaft 700 is b, and the active stroke of the telescopic actuator 100 is c. The relationship between the three satisfies b+a>c and b+a'<c. Based on this length relationship, the range of motion of the telescopic actuator 100 and the connecting rod 200 is only swinging. Combined with Figure 3 It can be seen that when the swing amplitude of the connecting rod 200 needs to be controlled, the size of c can be controlled, that is, by selecting a telescopic actuator 100 with a corresponding stroke, the connecting rod 200 can be rotated to a specific angle.

[0032] like Figure 4-Figure 5 As shown, the shapes of the block 300 and the protrusion 400 match each other. Specifically, a straight slot is provided on the block 300, and correspondingly, a straight protrusion is provided on the protrusion 400. The slot and the protrusion can match and engage with each other, so that the protrusion 400 can rotate with the block 300. It should be noted that the engagement mentioned here refers to the shapes of the two being complementary, and does not limit the two to being fixed after matching. It can be understood as the matching relationship between a straight screwdriver and a screw with a straight slot. Furthermore, the slot is a through slot with openings at both ends. At the same time, since the shapes of the slot and the protrusion are both straight, the protrusion can slide in the slot, or in other words, the protrusion can slide into the slot from the outside, or slide out of the slot. Of course, the sliding direction is consistent with the length direction of the slot.

[0033] In the present embodiment, since the assembly and disassembly of the tool holder is used in conjunction with the slide rail, the assembly and disassembly of the block 300 and the protrusion 400 are angle-restricted. Specifically, the aforementioned slide rail is in a horizontal state, and only when the slot on the block 300 is also in a horizontal state, can the slot be separated from the protrusion and the tool holder be removed, otherwise the tool holder will be restricted. It is easy to know that if you want to adjust the angle of the block 300 and the protrusion 400, you can drive the connecting rod to swing through the telescopic actuator, that is, rotate the block 300 and the protrusion 400 to a state where the slot is horizontal. Furthermore, in the present embodiment, referring to Figure 3As shown in the action direction diagram, the telescopic actuator 100 is a cylinder. It can be known that when the slot is horizontal, the movable end of the telescopic actuator 100 can be in two states: extended or retracted. It can be understood that when the movable end of the telescopic actuator 100 is extended or retracted, the position of the slot changes from a non-horizontal state to a horizontal state. As the best, when the movable end is fully extended or retracted, the slot is in a horizontal state, and the tool holder can be taken out along the slide rail; on the contrary, when the movable end is fully retracted or fully extended, the angle of the tool holder is exactly the cutting angle. The sequential structure and principle simplifies the adjustment method of the traditional structure and reduces the manufacturing cost of the equipment; at the same time, it solves the problem of cumbersome steps when changing the tool and improves production efficiency.

[0034] Furthermore, if Figure 5 As shown, the angle control device also includes a flange seat 800, which is fixedly arranged on the frame. Specifically, the flange seat 800 is fixed on the slide rail of the bottom knife plate, and the flange seat 800 has a notch 810, which corresponds to the position of the protrusion 400, so as to avoid air during the disassembly and assembly of the tool holder. The flange seat 800 fixes the connecting shaft 700 therein through a bearing. Therefore, the main function of the flange seat 800 is to fix the connecting shaft 700, that is, to fix the rotation center of the connecting rod 200, so that it corresponds to the working position of the tool holder, and at the same time, to provide convenient conditions for the disassembly and assembly of the tool holder.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An angle control device for a straight knife holder of a slitting device, characterized in that: It includes a telescopic actuator, a connecting rod, a clamping block and a protrusion; the protrusion is arranged at the end of the tool holder, and the shapes of the clamping block and the protrusion match and engage with each other; The movable end of the telescopic actuator is connected to the connecting rod via a first hinge; The fixed end of the telescopic actuator is connected to the frame via a second hinge; The connecting rod is fixedly connected to the clamping block via a connecting shaft; The difference between the distance from the second hinge to the rotation center of the connecting shaft and the distance from the first hinge to the rotation center of the connecting shaft is greater than the movable stroke of the movable end of the telescopic actuator.

2. The angle control device according to claim 1, characterized in that: The card block is provided with a straight-line card slot, and correspondingly, the protrusion is provided with a straight-line protrusion, and the card slot and the protrusion can be matched and engaged; The protrusion can move along the length direction of the slot, so that the slot and the protrusion are engaged or separated.

3. The angle control device according to claim 2, characterized in that: When the movable end of the telescopic actuator is extended, the angle of the tool holder is a cutting angle, and at this time, the slot and the protrusion are inseparable; When the movable end of the telescopic actuator is retracted, the angle of the tool holder is a disassembly angle, and at this time, the slot and the protrusion can be separated.

4. The angle control device according to claim 2, characterized in that: When the movable end of the telescopic actuator is extended, the angle of the tool holder is a disassembly angle, and at this time, the slot and the protrusion can be separated; When the movable end of the telescopic actuator is retracted, the angle of the tool holder is a cutting angle, and at this time, the slot and the protrusion are inseparable.

5. The angle control device according to claim 3 or 4, characterized in that: When at the disassembly angle or the cutting angle, the movable end of the telescopic actuator is fully extended or retracted.

6. The angle control device according to claim 1, characterized in that: It also includes a flange seat, and the connecting shaft is assembled with the flange seat through a bearing; The flange seat is fixedly arranged on the frame; The flange seat is provided with a notch corresponding to the disassembly and assembly direction of the tool holder, so as to avoid air gap during the disassembly and assembly of the tool holder.

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