Equal-width cutting device

Abstract

The equal-width cutting device comprises a fixing plate and a cutting plate, the cutting plate is fixedly installed on the fixing plate, the right side of the cutting plate is rotationally connected with a handle through a rotating shaft, torsional springs are arranged on the front side and the rear side of the rotating shaft respectively, and button arms of the torsional springs abut against the bottom of the right side of the handle and the top end face of the fixing plate respectively. The left side of the fixing plate is fixedly provided with a torsion spring, the right side of the handle is internally and fixedly provided with blades which are symmetrically arranged front and back, the center position of the front side of the handle is provided with a detachable blocking rod, and the top end of the left side of the cutting board is provided with a kidney-shaped hole used for avoiding the blocking rod. When the left side of the top of the handle is pressed, the handle does anticlockwise motion with the rotating shaft as the circle center, and equal-width cutting of a cutting material can be achieved through the blades symmetrically arranged in the right side of the handle front and back.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting technical field, especially equal width cutting device. BACKGROUND

[0002] Manual cutting device is the important equipment indispensable in modern life, and its main function is to cut various materials, which can include paper, cloth, plastic, rubber, leather and metal plate etc.

[0003] At present, manual cutting device needs to utilize the scale to determine the size that cutting material needs to cut when cutting the cutting material, but error is easy to produce and causes that cutting precision is not high in this process, therefore needs to set up an equal width cutting device. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an equal width cutting device to solve the problems in the prior art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme.

[0006] An equal width cutting device, including fixed plate and knife plate, the knife plate is fixedly installed on the fixed plate, the right side of the knife plate is rotatably connected with handle, the right side of the handle is provided with first rectangle hole that penetrates up and down, the first rectangle hole is used for avoiding the knife plate completely, the right side of the first rectangle hole penetrates the handle completely, the inner top of the first rectangle hole is provided with rectangle groove that is symmetrical in front and back, the inner bottom of the rectangle groove is provided with second rectangle hole that penetrates front and back, the top of the rectangle groove is fixedly installed with blade, the top left side of the handle is fixedly installed with press ball, the right side of the handle is sequentially installed with first circular hole and second circular hole that penetrate front and back from top to bottom, the front and back penetration of the third circular hole is set up in the center position of the front side of the handle, the third circular hole is detachably provided with blocking rod, the left side top of the knife plate is provided with the waist type hole for avoiding the blocking rod, the second circular hole is rotatably installed with pivot, the handle is rotatably installed in the right side top of the knife plate through the pivot, the front and back sides of the pivot are provided with torsion spring, one end of the torsion spring is dead against the right side bottom of the handle, the other end of the torsion spring is dead against the top end face of the fixed plate, the right side bottom of the knife plate is provided with a plurality of front and back penetration through hole, the through hole is fixedly screwed with locking rod, the locking rod is dead against the one end of the torsion spring close to the fixed plate.

[0007] When the pressing ball on the left side of the top of the handle is pressed, the right side of the handle will move counterclockwise around the pivot, because the two arms of the torsion spring are respectively abutted against the top end surface of the fixed plate and the right side bottom of the handle, and the blocking rod installed at the central position of the front side of the handle can only move in the waist-shaped hole, so the handle cannot make a large clockwise rotation around the pivot due to the force applied by the arms and can only make a certain degree of counterclockwise rotation, the first rectangular hole penetrating upward and downward on the right side of the handle is provided for completely avoiding the knife plate, the knife blade is fixedly installed on the rectangular groove symmetrically provided on the top end of the first rectangular hole, and the inner bottom end of the rectangular groove is provided with a second rectangular hole penetrating front and back, the cutting material is put into through any second rectangular hole and then penetrates to the other second rectangular hole, and the equal-width cutting of the cutting material can be realized by pressing the pressing ball.

[0008] In further embodiments, the top of the knife plate is provided with two upward protrusions on the left and right sides, and the interval between the two protrusions is smaller than the effective cutting length of the knife blade.

[0009] By adopting the above technical scheme, when the interval between the two protrusions is smaller than the effective cutting length of the knife blade, it can be ensured that the cutting material can be cut within the effective cutting range of the knife blade at any time, and the accuracy of the equal-width cutting device is improved.

[0010] In further embodiments, the blocking rod is composed of a first cylindrical part and a second cylindrical part which are integrally formed, the second cylindrical part is inserted into the third circular hole, the middle segment of the second cylindrical part penetrates through the waist-shaped hole, the second cylindrical part is in clearance fit with the third circular hole, one end of the second cylindrical part away from the first cylindrical part is provided with a fourth circular hole, the axial direction of the fourth circular hole is perpendicular to the axis of the second cylindrical part, the fourth circular hole completely penetrates the second cylindrical part, the inner ends of the fourth circular hole are provided with spherical balls, the two ends of the fourth circular hole are provided with centripetal blocking rings, the blocking rings are in interference fit with the spherical balls, and the inner part of the fourth circular hole is provided with a reset spring, and the two ends of the reset spring are abutted against the spherical balls.

[0011] By adopting the above technical scheme, the handle right side bottom is provided with a torsion spring, one arm of the torsion spring is firmly abutted against the top end surface of the fixed plate and cannot move, the other arm of the torsion spring will drive the handle to make a clockwise rotation, the fourth circular hole provided at one end of the second cylindrical part of the blocking rod away from the first cylindrical part, and the centripetal blocking rings at the two ends of the fourth circular hole and the spherical balls in the fourth circular hole are in mutual fit, so that the movement of the blocking rod in the waist-shaped hole can be controlled, and the handle is limited to make a large clockwise rotation.

[0012] In further embodiments, the fixed plate is provided with a plurality of fifth circular holes penetrating upward and downward at equal intervals from left to right, and the bottom of the knife plate is provided with a first threaded blind hole corresponding to each fifth circular hole.

[0013] By adopting the technical scheme, the fixed plate can be firmly bolted with the bottom of the cutter plate, and the work efficiency of the equal-width cutting device can be prevented from being affected due to instability.

[0014] In a further embodiment, the left top of the handle is provided with a sixth circular hole penetrating up and down, and the bottom of the pressing ball is provided with a second threaded blind hole corresponding to the sixth circular hole.

[0015] By adopting the technical scheme, the pressing ball can be firmly fixed on the left top of the handle through the threaded blind hole corresponding to the bottom of the pressing ball and the sixth circular hole, so that the left side of the handle can be pressed conveniently.

[0016] In a further embodiment, the second cylindrical part is fixedly installed with a pull ring at one end away from the first cylindrical part.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. By symmetrically arranging a rectangular groove in front of and behind the top end of the first rectangular hole, the setting of the rectangular groove top installing the blade can achieve the effect of equal-width cutting. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall schematic view of the utility model, which is used for reflecting the connection relationship of the equal-width cutting device;

[0020] Figure 2 is the schematic view of the internal structure of the second cylindrical part of the utility model.

[0021] In the figure, 1, fixed plate; 2, cutter plate; 3, handle; 4, blade; 5, pressing ball; 6, blocking rod; 61, first cylindrical part; 62, second cylindrical part; 7, rotating shaft; 8, torsional spring; 9, locking rod; 10, protrusion; 11, ball; 12, blocking ring; 13, pull ring. DETAILED DESCRIPTION

[0022] The utility model will be further described in detail below in combination with the drawings.

[0023] Wherein, same parts are indicated by same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the drawings. Figure 1In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0024] Example 1:

[0025] like Figures 1-2 As shown, an equal-width cutting device includes a fixed plate 1 and a blade 2. The blade 2 is fixedly mounted on the fixed plate 1. A handle 3 is rotatably connected to the right side of the blade 2. A first rectangular hole penetrating vertically is provided on the right side of the handle 3, which completely avoids the blade 2. The right side of the first rectangular hole completely penetrates the handle 3, allowing the handle to rotate counterclockwise around the right side of the blade 2, thus preventing the top right side of the blade 3 from obstructing the rotation of the handle. Rectangular grooves are symmetrically arranged at the top inner end of the first rectangular hole, and a second rectangular hole penetrating vertically is provided at the bottom inner end of the rectangular groove. A blade 4 is fixedly mounted on the top of the rectangular groove. Upward protrusions are provided on both the left and right sides of the rectangular groove. The rear end face of the blade 4 in the rectangular groove at the front end of the handle 3 is in contact with the front end face of the blade 2, and the front end face of the blade 4 in the rectangular groove at the rear end of the handle 3 is in contact with the rear end face of the blade 2. The bottom end face of the blade 4 is flush with the top surface of the protrusion. A pressing ball 5 is fixedly installed on the top left side of the handle 3. A downward first protrusion is provided on the bottom right side of the handle 3. A first circular hole is provided in front of the first protrusion. A downward second protrusion is provided at the bottom of the first protrusion. A second circular hole is provided in front of the second protrusion. A third circular hole is provided in front of the handle 3. A blocking rod 6 is detachably installed in the third circular hole. A waist-shaped hole for avoiding the blocking rod 6 is provided on the top left side of the blade plate 2. A rotating shaft 7 is rotatably installed in the second circular hole. The handle 3 is rotatably installed on the top right side of the blade plate 2 via the rotating shaft 7. Torsion springs 8 are provided on both the front and rear sides of the rotating shaft 7. One arm of the torsion spring 8 is locked to the bottom right side of the handle 3. The other arm of the torsion spring 8 is locked to the top surface of the fixing plate 1. Multiple through holes are provided on the bottom right side of the blade plate 2. A locking rod 9 is screwed and fixed in the through holes. The locking rod 9 is locked to one arm of the torsion spring 8 near the fixing plate 1.

[0026] The top of the cutter plate 2 is provided with an upward protrusion 10 on the left and right sides, the interval between the two protrusions 10 is smaller than the effective cutting length of the blade 4, the blocking rod 6 is composed of a first cylindrical part 61 and a second cylindrical part 62, the second cylindrical part 62 is inserted into the third circular hole, the middle section of the second cylindrical part 62 penetrates through the waist-shaped hole, the second cylindrical part 62 is in clearance fit with the third circular hole, the end of the second cylindrical part 62 away from the first cylindrical part 61 is provided with a fourth circular hole, the axial direction of the fourth circular hole is perpendicular to the axial line of the second cylindrical part 62, the fourth circular hole completely penetrates through the second cylindrical part 62, the inner ends of the fourth circular hole are provided with spherical balls 11, the two ends of the fourth circular hole are provided with centripetal blocking rings 12, the blocking rings 12 are in interference fit with the spherical balls 11, the inner part of the fourth circular hole is provided with a reset spring, the two ends of the reset spring are in abutment with the spherical balls 11, the fixed plate 1 is provided with a plurality of fifth circular holes penetrating up and down at equal intervals from left to right, the bottom of the cutter plate 2 is provided with a first threaded blind hole corresponding to the fifth circular hole, the left top of the handle 3 is provided with a sixth circular hole penetrating up and down, the bottom of the pressing ball 5 is provided with a second threaded blind hole corresponding to the sixth circular hole, the end of the second cylindrical part 62 away from the first cylindrical part 61 is fixedly installed with a pull ring 13.

[0027] Specific implementation process: the torsional spring 8 provided on the front and rear sides of the rotating shaft 7, because the two arms of the torsional spring are in abutment with the top end surface of the fixed plate 1 and the right side bottom of the handle 3 respectively, so the arm of the torsional spring 8 close to the right side bottom of the handle 3 will drive the handle 3 to make clockwise rotation around the rotating shaft 7, but because the blocking rod 6 penetrating through the center position of the front side of the handle 3 can only move in the waist-shaped hole, so the blocking rod 6 will limit the handle 3 to make clockwise rotation with too large angle and also limit the handle 3 to make counterclockwise rotation within a certain degree, the cutting material is cut from any second rectangular hole into another second rectangular hole, the cutting material is in contact with the cutter plate 4, the handle 3 is driven to make counterclockwise rotation around the rotating shaft 7 by pressing the pressing ball 5 on the left top of the handle 3, the blade 4 provided in the first rectangular hole penetrating up and down on the right side of the handle 3 cuts the cutting material symmetrically provided on the front and rear of the inner top end, so as to realize equal-width cutting.

[0028] In the embodiments disclosed in the utility model, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, detachable connection or integral connection; "connection" can be direct connection or indirect connection through an intermediate medium. For ordinary skilled persons in the art, the specific meanings of the above terms in the embodiments disclosed in the utility model can be understood according to specific circumstances.

[0029] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and a modification without creative contribution can be made to the embodiment according to needs by a person skilled in the art after reading the specification, but as long as the modification is within the scope of the claims of the utility model, the utility model is protected by the patent law.

Claims

1. A uniform width cutting device, comprising a fixed plate (1) and a blade (2), wherein the blade (2) is fixedly mounted on the fixed plate (1), characterized in that: The blade plate (2) is rotatably connected to a handle (3) on its right side. The handle (3) has a first rectangular hole that runs vertically through it on its right side. The first rectangular hole is used to completely avoid the blade plate (2). The handle (3) is completely penetrated by the right side of the first rectangular hole. A rectangular groove is symmetrically arranged at the top and bottom of the first rectangular hole. A second rectangular hole runs vertically through it at the bottom and bottom of the rectangular groove. A blade (4) is fixedly installed at the top of the rectangular groove. A pressing ball (5) is fixedly installed on the top left side of the handle (3). A first circular hole and a second circular hole that run vertically through it are arranged sequentially from top to bottom on the right side of the handle (3). A third circular hole that runs vertically through it is arranged at the center of the front side of the handle (3). The third circular hole contains... The blade plate (2) is detachably equipped with a blocking rod (6). The top left side of the blade plate (2) is provided with a waist-shaped hole for avoiding the blocking rod (6). A rotating shaft (7) is rotatably installed in the second circular hole. The handle (3) is rotatably installed on the top right side of the blade plate (2) via the rotating shaft (7). Torsion springs (8) are provided on both the front and rear sides of the rotating shaft (7). One arm of the torsion spring (8) is locked against the bottom right side of the handle (3), and the other arm of the torsion spring (8) is locked against the top surface of the fixing plate (1). The bottom right side of the blade plate (2) is provided with multiple through holes. A locking rod (9) is screwed into the through holes. The locking rod (9) is locked against one arm of the torsion spring (8) near the fixing plate (1).

2. The equal-width cutting device according to claim 1, characterized in that: The blade (2) has upward protrusions (10) on both the left and right sides of its top, and the interval between the two protrusions (10) is less than the effective cutting length of the blade (4).

3. The equal-width cutting device according to claim 1, characterized in that: The blocking rod (6) is composed of an integrally formed first cylindrical part (61) and a second cylindrical part (62). The second cylindrical part (62) is inserted into a third circular hole, and the middle section of the second cylindrical part (62) passes through a waist-shaped hole. The second cylindrical part (62) is clearance-fitted with the third circular hole. A fourth circular hole is provided at the end of the second cylindrical part (62) away from the first cylindrical part (61). The axis of the fourth circular hole is perpendicular to the axis of the second cylindrical part (62). The fourth circular hole completely penetrates the second cylindrical part (62). Both ends of the fourth circular hole are provided with spheres (11). Both ends of the fourth circular hole are provided with centripetal blocking rings (12). The blocking rings (12) are interference-fitted with the spheres (11). A return spring is provided inside the fourth circular hole. Both ends of the return spring are pressed against the spheres (11).

4. The equal-width cutting device according to claim 1, characterized in that: The fixing plate (1) is provided with multiple fifth circular holes that pass through vertically from left to right at equal intervals, and the bottom of the blade plate (2) is provided with a first threaded blind hole that corresponds to the fifth circular hole.

5. The equal-width cutting device according to claim 1, characterized in that: The top left side of the handle (3) is provided with a sixth circular hole that runs vertically through it, and the bottom of the pressing ball (5) is provided with a second threaded blind hole corresponding to the sixth circular hole.

6. The equal-width cutting device according to claim 3, characterized in that: A pull ring (13) is fixedly installed at the end of the second cylindrical part (62) away from the first cylindrical part (61).

Images