Cutting tool with replaceable blade

Abstract

The utility model relates to the technical field of cutting, and discloses a cutting tool with a replaceable blade, which comprises an operation box, a mounting groove is arranged at the top of the operation box, an inclined plate is fixedly connected in the operation box, the cutting tool further comprises a fixing mechanism, and the fixing mechanism comprises a fixing ring fixedly connected to the inner top wall of the operation box. The cross rod is pulled in the direction of the baffle ring, the cross rod moves to drive the end, fixed to the cross rod, of the pull rod to move in the direction of the baffle ring, at the moment, the end, away from the cross rod, of the pull rod moves in the direction close to the inner wall of the fixed cylinder, and therefore the sliding block is pulled to move, the sliding block pulls the push rod to move, and the push rod pulls the limiting block to move. And then the threaded cylinder is rotated anticlockwise, the threaded cylinder rotates to be gradually separated from the fixing cylinder, the threaded cylinder drives the connecting rod to move, the connecting rod drives the conical block to move, the connecting rod is separated from the fixing cylinder, then the cutting blade is taken down, and disassembly is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a cutting tool with a replaceable blade. Background Art

[0002] A cutting machine is a machine that uses electricity to drive the cutting tool to rotate at high speed, cut the workpiece, and cut it into different sizes. In construction and home decoration, a cutting machine is often needed to cut various types of materials. The saw blade on the cutting machine plays a very important role in the use of the equipment, and its requirements are also very strict. Its material, diameter, number of teeth, thickness, aperture and other parameters are combined into the whole of the hard alloy saw blade. Reasonable selection and matching can better play its advantages.

[0003] After long-term use, the cutting blade of the cutting machine needs to contact the surface of the object, generating friction. Long-term use will cause the cutting disc to be damaged and need to be replaced. However, many existing cutting devices are cumbersome to operate when replacing the blade, which is not convenient enough. Utility Model Content

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model is a cutting tool with replaceable blades, comprising an operating box, a mounting groove is provided on the top of the operating box, an inclined plate is fixedly connected to the inside of the operating box, and also comprises: a fixing mechanism, the fixing mechanism comprises a fixing ring fixedly connected to the top wall inside the operating box, a motor is fixedly connected to the inner wall of the fixing ring, a fixing cylinder is fixedly connected to the output end of the motor, a sliding groove is provided on the fixing cylinder, a retaining ring is fixedly connected to the outer wall of the fixing cylinder, a cutting blade is sleeved on the outer wall of the retaining ring, a side of the retaining ring away from the motor contacts with a side of the cutting blade close to the motor, and this arrangement is for limiting the cutting blade by the retaining ring to prevent the cutting blade from moving.

[0006] Furthermore, the end of the fixed cylinder away from the motor is threadedly connected to a threaded cylinder, the side of the threaded cylinder close to the fixed cylinder is in contact with the side of the cutting blade away from the retaining ring, the inner wall of the threaded cylinder is fixedly connected to a connecting rod, the connecting rod is sleeved inside the cutting blade, the connecting rod passes through the side wall and extends inside the fixed cylinder, and the end of the fixed cylinder away from the threaded cylinder is fixedly connected to a conical block. This arrangement is to connect the threaded cylinder with the fixed cylinder, thereby fixing the cutting blade between the limiting plate and the threaded cylinder.

[0007] Furthermore, a plurality of limiting grooves are formed on one end of the fixing tube away from the motor, the length of the connecting rod is greater than the length of the threaded tube, and the bottom diameter of the conical block is greater than the diameter of the connecting rod.

[0008] Furthermore, a locking mechanism is provided inside the fixed cylinder, and the locking mechanism includes a mounting ring fixedly connected to the inner wall of the fixed cylinder, the inner diameter of the mounting ring is larger than the bottom diameter of the conical block, and a plurality of slide rails are fixedly connected to the side of the mounting ring close to the motor, and a plurality of slide rails are slidably connected inside each of the slide rails. This arrangement is to limit the slide rail by the slide rail to prevent the slide from falling off.

[0009] Furthermore, a spring is fixedly connected to one side of the sliders that are away from each other, and one end of the spring away from the slider is fixedly connected to the inner wall of the slide rail. One end of the slider away from the spring is fixedly connected to a push rod, and the push rod passes through and extends from the side wall of the slide rail. This arrangement is used to compress the spring during the movement of the slider so that the spring has elastic force.

[0010] Furthermore, one end of the push rod away from the slider is fixedly connected to a limit block, the side of the limit block close to the mounting ring is an inclined surface, the side of the slider away from the slide rail is rotatably connected to a pull rod, the end of the pull rod away from the slider is rotatably connected to a cross rod, and the cross rod is slidably connected in the slide groove. The professional setting is to push the push rod to move by moving the slider, so that the push rod drives the limit block to move, thereby limiting the conical block.

[0011] Furthermore, a feeding mechanism is arranged above the operating box, and the feeding mechanism includes two fixed plates fixedly connected to the top of the operating box, a sliding rod is fixedly connected to one side of the two fixed plates close to each other, and a placing plate is slidably connected to the outer wall of the sliding rod. This arrangement is to limit the placing plate by the sliding rod to prevent the limiting plate from moving left and right.

[0012] Furthermore, a cutting groove is provided on the placement plate, a baffle is fixedly connected to the side of the placement plate away from the operation box, a mounting plate is fixedly connected to the left side of the baffle, and a threaded rod is threadedly connected to the inside of the mounting plate. This arrangement is to limit the cutting material by the baffle to prevent the cutting material from moving backwards.

[0013] Furthermore, a handle is fixedly connected to the rear end of the threaded rod, a limit plate is fixedly connected to the end of the threaded rod away from the handle, and a U-shaped rod is fixedly connected to the side of the baffle away from the mounting plate. This arrangement is to push the limit plate to move through the U-shaped rod, and the limit plate drives the placement plate to move along the sliding rod to facilitate cutting.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model pulls the cross bar toward the retaining ring, and the movement of the cross bar drives one end of the pull rod fixed on the cross bar to move toward the retaining ring. At this time, the end of the pull rod away from the cross bar moves toward the inner wall of the fixed tube, thereby pulling the slider to move, the slider pulls the push rod to move, the push rod pulls the limit block to move, so that the push rod is separated from the conical block, and then the threaded tube is rotated counterclockwise, the threaded tube will gradually separate from the fixed tube, the threaded tube drives the connecting rod to move, the connecting rod drives the conical block to move, thereby separating the connecting rod from the fixed tube, and then the cutting disc is removed, which makes disassembly more convenient.

[0016] (2) The utility model aligns the threaded cylinder with the fixed cylinder and rotates the threaded cylinder clockwise. The threaded cylinder will drive the connecting rod to move in the direction close to the fixed cylinder, and the connecting rod will drive the conical block to move. When the conical block contacts the limit block, the threaded cylinder continues to rotate. The conical block will push the limit block to move away from each other. The limit block pushes the push rod, and the push rod pushes the slider. The slider compresses the spring. When the threaded cylinder fixes the cutting disc between the retaining ring and the threaded cylinder, the conical block just passes through the limit block. The spring will reset, and the spring will push the slider to move in the direction close to each other. The slider pushes the push rod, and the push rod pushes the limit block, thereby restricting the conical block and preventing the threaded cylinder from loosening due to vibration.

[0017] (3) The utility model rotates the handle, which drives the threaded rod to rotate. The rotation of the threaded rod causes the threaded rod to move forward and backward, thereby pushing the limit plate to move, causing the distance between the limit plate and the cutting groove to change, thereby adjusting the cutting length of the material.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the operating box of the utility model;

[0022] Figure 3 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed cylinder of the utility model;

[0024] Figure 5 This is a schematic diagram of the locking mechanism structure of the utility model;

[0025] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 7 It is a schematic diagram of the structure of the feeding mechanism of the utility model.

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

[0028] In the figure: 1. operation box; 11. mounting groove; 12. inclined plate; 2. fixing mechanism; 201. fixing ring; 202. motor; 203. fixing cylinder; 204. slide groove; 205. baffle ring; 206. cutting disc; 207. threaded cylinder; 208. connecting rod; 209. conical block; 3. locking mechanism; 301. mounting ring; 302. slide rail; 303. slider; 304. spring; 305. push rod; 306. limit block; 307. pull rod; 308. cross rod; 4. feeding mechanism; 401. fixing plate; 402. slide rod; 403. placement plate; 404. cutting groove; 405. baffle; 406. mounting plate; 407. threaded rod; 408. handle; 409. limit plate; 410. U-shaped rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1 - Figure 7 As shown, it includes an operation box 1, a mounting slot 11 is provided on the top of the operation box 1, an inclined plate 12 is fixedly connected inside the operation box 1, and also includes:

[0031] The fixing mechanism 2 includes a fixing ring 201 fixedly connected to the top wall inside the operation box 1, the inner wall of the fixing ring 201 is fixedly connected to the motor 202, the output end of the motor 202 is fixedly connected to the fixing cylinder 203, the fixing cylinder 203 is provided with a slide groove 204, the outer wall of the fixing cylinder 203 is fixedly connected to the retaining ring 205, the outer wall of the retaining ring 205 is sleeved with a cutting blade 206, and the side of the retaining ring 205 away from the motor 202 is in contact with the side of the cutting blade 206 close to the motor;

[0032] Among them, the end of the fixed cylinder 203 away from the motor 202 is threadedly connected with a threaded cylinder 207, the side of the threaded cylinder 207 close to the fixed cylinder 203 is in contact with the side of the cutting blade 206 away from the retaining ring 205, the inner wall of the threaded cylinder 207 is fixedly connected with a connecting rod 208, the connecting rod 208 is sleeved inside the cutting blade 206, the connecting rod 208 passes through the side wall 26 and extends into the fixed cylinder 203, and the end of the fixed cylinder 203 away from the threaded cylinder 207 is fixedly connected with a conical block 209.

[0033] A plurality of limiting grooves are formed on one end of the fixing tube 203 away from the motor 202 . The length of the connecting rod 208 is greater than that of the threaded tube 207 . The bottom diameter of the conical block 209 is greater than that of the connecting rod 208 .

[0034] A locking mechanism 3 is provided inside the fixed cylinder 203, and the locking mechanism 3 includes a mounting ring 301 fixedly connected to the inner wall of the fixed cylinder 203, the inner diameter of the mounting ring 301 is larger than the bottom diameter of the conical block 209, and a plurality of slide rails 302 are fixedly connected to one side of the mounting ring 301 close to the motor 202, and sliders 303 are slidably connected inside the plurality of slide rails 302.

[0035] A spring 304 is fixedly connected to one side of the slider 303 away from each other, and one end of the spring 304 away from the slider 303 is fixedly connected to the inner wall of the slide rail 302. The end of the slider 303 away from the spring 304 is fixedly connected to a push rod 305, which passes through the side wall of the slide rail 302 and extends.

[0036] The end of the push rod 305 away from the slider 303 is fixedly connected to the limit block 306, and the side of the limit block 306 close to the mounting ring 301 is an inclined surface. The side of the slider 303 away from the slide rail 302 is rotatably connected to the pull rod 307, and the end of the pull rod 307 away from the slider 303 is rotatably connected to the cross rod 308, and the cross rod 308 is slidably connected in the slide groove 204.

[0037] A feeding mechanism 4 is arranged above the operation box 1, and the feeding mechanism 4 includes two fixed plates 401 fixedly connected to the top of the operation box 1, a sliding rod 402 is fixedly connected to one side of the two fixed plates 401 close to each other, and a placement plate 403 is slidably connected to the outer wall of the sliding rod 402.

[0038] A cutting groove 404 is formed on the placement plate 403 , a baffle 405 is fixedly connected to one side of the placement plate 403 away from the operation box 1 , a mounting plate 406 is fixedly connected to the left side of the baffle 405 , and a threaded rod 407 is threadedly connected to the inside of the mounting plate 406 .

[0039] A handle 408 is fixedly connected to the rear end of the threaded rod 407 , one end of the threaded rod 407 away from the handle 408 is fixedly connected to a limiting plate 409 , and a U-shaped rod 410 is fixedly connected to one side of the baffle 405 away from the mounting plate 406 .

[0040] When in use, when it is necessary to replace the cutting disc 206, the cross rod 308 is pulled in the direction of the retaining ring 205. The movement of the cross rod 308 will drive the end of the pull rod 307 fixed on the cross rod 308 to move in the direction of the retaining ring 205. At this time, the end of the pull rod 307 away from the cross rod 308 will move toward the inner wall of the fixed cylinder 203, thereby pulling the slider 303 to move, the slider 303 pulls the push rod 305 to move, and the push rod 305 pulls the limit block 306 to move, so that the push rod 305 is separated from the tapered block 209, and then the threaded cylinder 207 is rotated counterclockwise. The threaded cylinder 207 rotates and gradually separates from the fixed cylinder 203, and the threaded cylinder 207 The connecting rod 208 is driven to move. The connecting rod 208 drives the conical block 209 to move, thereby separating the connecting rod 208 from the fixed cylinder 203, and then removing the cutting blade 206 for replacement is more convenient. When installing a new blade, the cutting blade 206 is sleeved on the fixed cylinder 203, and the threaded cylinder 207 is aligned with the fixed cylinder 203. The threaded cylinder 207 is rotated clockwise, and the threaded cylinder 207 will drive the connecting rod 208 to move in the direction close to the fixed cylinder 203. The connecting rod 208 drives the conical block 209 to move. When the conical block 209 contacts the limit block 306, the threaded cylinder 207 is continued to be rotated, and the conical block 209 will push the limit block 306 to When the threaded cylinder 207 fixes the cutting blade 206 between the retaining ring 205 and the threaded cylinder 207, the conical block 209 just passes through the limit block 306, and the spring 304 is reset. The spring 304 pushes the slider 303 to move in the direction of approaching each other, and the slider 303 pushes the push rod 305, and the push rod 305 pushes the limit block 306, thereby limiting the conical block 209, which can prevent the threaded cylinder 207 from loosening due to vibration. Turn the handle 408, and the handle 408 drives the threaded rod 40 7 rotates, the rotation of the threaded rod 407 will make the threaded rod move forward and backward, thereby pushing the limit plate 409 to move, so that the distance between the limit plate 409 and the cutting groove 404 changes, thereby adjusting the cutting length of the material, placing the cutting material on the placement plate 403, making the cutting material contact with the limit plate 409, starting the fixing ring motor 202, the motor 202 drives the fixing cylinder 203 to rotate, because there is a limit groove on the fixing cylinder 203, the fixing cylinder 203 will drive the cutting blade 206 to rotate and then push the fixing plate 401, the U-shaped rod 410 pushes the baffle 405, and the baffle 405 drives the placement plate 403 to move along the sliding rod, thereby cutting the material.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cutting tool with a replaceable blade, comprising an operating box (1), a mounting slot (11) being provided on the top of the operating box (1), an inclined plate (12) being fixedly connected inside the operating box (1), characterized in that: Also includes: A fixing mechanism (2), the fixing mechanism (2) comprising a fixing ring (201) fixedly connected to the top wall inside the operating box (1), the inner wall of the fixing ring (201) being fixedly connected to a motor (202), the output end of the motor (202) being fixedly connected to a fixing cylinder (203), a sliding groove (204) being provided on the fixing cylinder (203), a retaining ring (205) being fixedly connected to the outer wall of the fixing cylinder (203), a cutting blade (206) being sleeved on the outer wall of the retaining ring (205), and a side of the retaining ring (205) away from the motor (202) being in contact with a side of the cutting blade (206) close to the motor; The end of the fixed cylinder (203) away from the motor (202) is threadedly connected to a threaded cylinder (207), the side of the threaded cylinder (207) close to the fixed cylinder (203) contacts the side of the cutting blade (206) away from the retaining ring (205), the inner wall of the threaded cylinder (207) is fixedly connected to a connecting rod (208), the connecting rod (208) is sleeved inside the cutting blade (206), the connecting rod (208) passes through the side wall 26 and extends into the fixed cylinder (203), and the end of the fixed cylinder (203) away from the threaded cylinder (207) is fixedly connected to a conical block (209).

2. A cutting tool with a replaceable blade according to claim 1, characterized in that: A plurality of limiting grooves are provided on one end of the fixed cylinder (203) away from the motor (202); the length of the connecting rod (208) is greater than the length of the threaded cylinder (207); and the bottom diameter of the conical block (209) is greater than the diameter of the connecting rod (208).

3. A cutting tool with a replaceable blade according to claim 1, characterized in that: A locking mechanism (3) is arranged inside the fixed cylinder (203), and the locking mechanism (3) comprises a mounting ring (301) fixedly connected to the inner wall of the fixed cylinder (203), the inner diameter of the mounting ring (301) being larger than the bottom diameter of the conical block (209), and a plurality of slide rails (302) are fixedly connected to one side of the mounting ring (301) close to the motor (202), and a plurality of slide rails (302) are slidably connected to the inside of each of the slide rails (302).

4. A cutting tool with a replaceable blade according to claim 3, characterized in that: A spring (304) is fixedly connected to one side of the slider (303) away from each other, and one end of the spring (304) away from the slider (303) is fixedly connected to the inner wall of the slide rail (302). One end of the slider (303) away from the spring (304) is fixedly connected to a push rod (305), and the push rod (305) passes through the side wall of the slide rail (302) and extends.

5. A cutting tool with a replaceable blade according to claim 4, characterized in that: The end of the push rod (305) away from the slider (303) is fixedly connected to a limit block (306), and the side of the limit block (306) close to the mounting ring (301) is an inclined surface. The side of the slider (303) away from the slide rail (302) is rotatably connected to a pull rod (307), and the end of the pull rod (307) away from the slider (303) is rotatably connected to a cross rod (308), and the cross rod (308) is slidably connected in the slide groove (204).

6. A cutting tool with a replaceable blade according to claim 1, characterized in that: A feeding mechanism (4) is arranged above the operation box (1), and the feeding mechanism (4) comprises two fixed plates (401) fixedly connected to the top of the operation box (1), a sliding rod (402) is fixedly connected to one side of the two fixed plates (401) close to each other, and a placement plate (403) is slidably connected to the outer wall of the sliding rod (402).

7. A cutting tool with a replaceable blade according to claim 6, characterized in that: The placement plate (403) is provided with a cutting groove (404); a baffle (405) is fixedly connected to the side of the placement plate (403) away from the operation box (1); a mounting plate (406) is fixedly connected to the left side of the baffle (405); and a threaded rod (407) is internally threadedly connected to the mounting plate (406).

8. A cutting tool with a replaceable blade according to claim 7, characterized in that: The rear end of the threaded rod (407) is fixedly connected to a handle (408), one end of the threaded rod (407) away from the handle (408) is fixedly connected to a limiting plate (409), and one side of the baffle (405) away from the mounting plate (406) is fixedly connected to a U-shaped rod (410).

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