Paper cutter with safety protection structure

Abstract

The utility model provides a paper cutter with a safety protection structure, and relates to the technical field of paper cutters. Rectangular grooves are formed in the two ends of the fixed base correspondingly. Fixing frames are fixedly installed at the rectangular grooves in the two ends of the fixing base. The protective frame can be erected on the fixed base in advance, fingers of an operator cannot penetrate through the bottom of the protective frame, and therefore the hand of the operator is protected, and meanwhile before the paper is cut by the cutting knife, the protective frame is erected at the front end and the rear end of the cut paper in advance; at the moment, the cut paper cannot move due to downward pressing limitation of the front end and the rear end of the protection frame, so that the cut paper is protected, and the problems that the paper needs to be cut due to the fact that the type of the paper is large or roll paper is inconvenient to use, the paper needs to be protected at a cutting knife during cutting, otherwise, fingers touch the paper and put the paper at the cutting knife by mistake, and the cutting efficiency is high are solved. And fingers can be hurt when the cutting knife is pressed downwards.

Description

Technical Field

[0001] The utility model relates to the technical field of paper cutters, in particular to a paper cutter with a safety protection structure. Background Art

[0002] Paper cutters are traditional products, which are mainly used to handle the paper cutting needs in the later stage of printing. Currently, most of them are used in printing plants and paper mills. The development of paper cutters has been very comprehensive, from mechanical paper cutters to tape-controlled paper cutters. However, the existing safety paper cutters for book binding have the disadvantages of poor mobility, lack of backup power supply, and failure to protect the cutting port during the cutting process. Therefore, it is necessary to improve the existing technology so that the paper cutters can have higher cutting accuracy and lower labor intensity.

[0003] When using a paper cutter, the paper needs to be cut because the paper is large or the roll is inconvenient to use. When cutting the paper, the cutter needs to be protected. Otherwise, if your fingers touch the paper and accidentally place it on the cutter, the cutter will press down and cause injury to your fingers. Utility Model Content

[0004] The disclosed embodiment relates to a paper cutter with a safety protection structure, in which the distance between the bottom of the protection frame and the fixed base is less than one centimeter. When the cutting knife moves downward to cut the paper, the protection frame will be erected on the fixed base in advance, and the operator's fingers cannot pass through the bottom of the protection frame, thereby protecting the operator's hands. At the same time, before the cutting knife cuts the paper, the protection frame is erected in advance at the front and rear ends of the cut paper. At this time, the cut paper is restricted by the downward pressure at the front and rear ends of the protection frame and cannot move, thereby also protecting the cut paper.

[0005] In a first aspect of the present disclosure, a paper cutter with a safety protection structure is provided, which specifically comprises: a fixed base; rectangular grooves are respectively provided at both ends of the fixed base; fixed frames are fixedly installed at the rectangular grooves at both ends of the fixed base, and a through circular hole is provided in the middle of the fixed frame; symmetrical limiting blocks are respectively fixedly installed at the front and rear ends of the fixed base, and the structures on the four limiting blocks are consistent;

[0006] The limiting block is provided with a through circular hole; the top of the limiting block is provided with three fixing grooves; a limiting plate is fixedly installed on the side wall of the inner end of the limiting block; mutually parallel adjustment blocks are fixedly installed on the bottom of the limiting block, a support frame is fixedly installed at the three fixing grooves at the top of the limiting block, and a through circular hole is provided in the middle of the upper end of the support frame;

[0007] A spring rod is inserted through the circular hole in the middle of the support frame, a baffle is fixedly installed on the top of the spring rod, a pull ring is fixedly installed on the side wall of the baffle, a limit block is fixedly installed on the bottom of the spring rod, and a fixed disk is fixedly installed in the middle of the spring rod.

[0008] In at least some embodiments, the two ends of the fixed base are respectively provided with adjustment grooves parallel to each other, the left and right ends of the fixed base are respectively provided with two rows of limit grooves, and the middle part of the fixed base is provided with a cutting groove.

[0009] In at least some embodiments, mutually symmetrical guide grooves are provided on the inner side walls of the fixed frame, an electric push rod is fixedly installed through the circular hole at the upper end of the fixed frame, a bearing bar is fixedly installed at the lower end of the electric push rod, a card slot is provided at the bottom of the bearing bar, and a connecting groove is provided at the top of the bearing bar.

[0010] In at least some embodiments, guide blocks are fixedly mounted on both side walls of the bearing bar, four anti-slip grooves are respectively provided on the front and rear side walls of the bearing bar, and a cutting knife is fixedly mounted at the slot at the bottom of the bearing bar.

[0011] In at least some embodiments, a U-shaped protective frame is slidably mounted on both ends of the support bar, and mutually parallel anti-slip strips are fixedly mounted on both ends of the inner cavity side walls of the protective frame.

[0012] The utility model provides a paper cutter with a safety protection structure, which has the following beneficial effects:

[0013] When the paper cutter of the utility model is in use, the distance between the bottom of the protective frame and the fixed base is less than one centimeter. When the cutting knife moves downward to cut the paper, the protective frame will be erected on the fixed base in advance, and the operator's fingers cannot pass through the bottom of the protective frame, thereby protecting the operator's hands. At the same time, before the cutting knife cuts the paper, the protective frame is erected in advance at the front and rear ends of the cut paper. At this time, the cut paper is restricted by the downward pressure of the front and rear ends of the protective frame and cannot move, thereby also protecting the cut paper.

[0014] The inner side walls of the two limiting blocks facing one end are attached to the paper, and the limiting plates are located at the upper ends of the two ends of the paper. The front and rear ends of the paper are limited by the limiting blocks and the limiting plates and will not be lifted during cutting, thereby protecting the cut paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram of the partially disassembled structure of the limiting block of the present application is shown;

[0019] Figure 2 The schematic diagram of the upper left front axial structure of the present application is shown;

[0020] Figure 3 A schematic diagram of the disassembled structure of a fixed frame portion of the present application is shown;

[0021] Figure 4 A schematic diagram of the explosion structure of the present application is shown.

[0022] Reference numerals list

[0023] 1. Fixed base; 101. Adjustment slot; 102. Limiting slot; 103. Cutting slot; 2. Fixed frame; 201. Guide slot; 202. Electric push rod; 203. Load-bearing bar; 204. Guide block; 205. Anti-slip slot; 206. Cutting knife; 207. Protection frame; 208. Anti-slip strip; 3. Limiting block; 301. Limiting plate; 302. Adjustment block; 303. Support frame; 304. Spring rod; 305. Limiting block; 306. Fixed plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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.

[0025] Example 1: Please refer to Figures 1 to 4 :

[0026] The utility model proposes a paper cutter with a safety protection structure, comprising: a fixed base 1; rectangular grooves are respectively provided at both ends of the fixed base 1; adjustment grooves 101 parallel to each other are respectively provided at both ends of the fixed base 1, two rows of limit grooves 102 are respectively provided at the left and right ends of the fixed base 1, limit blocks 305 are inserted into the limit grooves 102, and a cutting groove 103 is provided in the middle of the fixed base 1; a cutting knife 206 corresponds to the cutting groove 103 up and down, and the cutting knife 206 moves downward and enters the cutting groove 103, fixed frames 2 are fixedly installed at the rectangular grooves at both ends of the fixed base 1, and a through circular hole is provided in the middle of the fixed frame 2; mutually symmetrical limit blocks 3 are respectively fixedly installed at the front and rear ends of the fixed base 1, and the structures on the four limit blocks 3 are consistent; a through circular hole is provided on the limit block 3; and three fixed grooves are provided at the top of the limit block 3.

[0027] Among them, symmetric guiding grooves 201 are formed on the inner sidewall of the fixed frame 2. A penetrating electric push rod 202 is fixedly installed at the circular hole at the upper end of the fixed frame 2. A bearing bar 203 is fixedly installed at the lower end of the electric push rod 202. A clamping groove is formed at the bottom of the bearing bar 203. The upper end of the cutting knife 206 is fixedly clamped in the clamping groove at the bottom of the bearing bar 203. A connecting groove is formed at the top end of the bearing bar 203. Guide blocks 204 are fixedly installed on both sidewalls of the bearing bar 203 respectively. The guide blocks 204 are slidably installed in the guiding grooves 201. When the bearing bar 203 slides up and down, the guide blocks 204 are restricted by the guiding grooves 201, and the bearing bar 203 can only slide up and down, preventing the bearing bar 203 from shifting or tilting when sliding up and down. When the cutting knife 206 at the lower end of the bearing bar 203 cuts on the paper, it will also be inclined, making the paper unusable. Four anti-disengagement grooves 205 are respectively formed on the front and rear sidewalls of the bearing bar 203. The cutting knife 206 is fixedly installed at the clamping groove at the bottom of the bearing bar 203. Hold one end of the paper and extend the paper under the cutting knife 206. C-shaped protective frames 207 are slidably installed at both ends of the bearing bar 203 respectively. Use the electric push rod 202 to push the bearing bar 203 downward. At this time, the cutting knife 206 and the protective frames 207 will also move downward. The bottoms of the two protective frames 207 will first contact the paper, pressing and restricting the front and rear ends of the paper. When the bearing bar 203 continues to move downward, the protective frames 207 will stand upright on the fixed base 1, and the cutting knife 206 will continue to move downward to cut the paper. When the electric push rod 202 pulls the bearing bar 203 upward, when the top end of the bearing bar 203 abuts against the top of the inner cavity sidewall of the protective frame 207, when the bearing bar 203 continues to move upward, it will lift the two protective frames 207 upward. At this time, the cut paper can be removed from the cutting position. After the protective frame 207 moves upward, the distance between the bottom of the protective frame 207 and the fixed base 1 is less than one centimeter, and the finger cannot pass through the bottom of the protective frame 207. When the cutting knife 206 moves downward to cut the paper, the protective frame 207 will stand upright on the fixed base 1 in advance. Parallel anti-disengagement bars 208 are respectively fixedly installed at both ends of the inner cavity sidewall of the protective frame 207. The anti-disengagement bars 208 are slidably installed in the corresponding anti-disengagement grooves 205.

[0028] Among them, a limiting plate 301 is fixedly installed on the side wall at the inner end of the limiting block 3; an adjusting block 302 parallel to each other is fixedly installed at the bottom of the limiting block 3, and the adjusting block 302 is slidably installed in the adjusting slot 101. When the limiting block 3 moves left and right, the adjusting block 302 is restricted by the adjusting slot 101, and the limiting block 3 can only move left and right to prevent the limiting block 3 from tilting when moving left and right. The two ends of the paper cannot be restricted by the opposite side walls of the two limiting blocks 3. A supporting frame 303 is fixedly installed at the three fixed slots at the top of the limiting block 3, and a penetrating circular hole is opened in the middle of the upper end of the supporting frame 303. A penetrating spring rod 304 is inserted in the circular hole in the middle of the supporting frame 303. When preparing to cut the paper, first Grab the pull ring and lift it upward to pull the limit block 305 out of the limit slot 102. At this time, the spring on the spring rod 304 will also shrink. Then move the limit blocks 3 at the left and right ends toward each other so that the inner side walls of the two limit blocks 3 facing one end are in contact with the paper, and the limit plate 301 is located at the upper ends of both ends of the paper, thereby limiting the paper. The front and back ends of the paper will be restricted by the limit blocks 3 and the limit plates 301 and will not curl up during cutting, thereby smoothly cutting the paper. A baffle is fixedly installed on the top of the spring rod 304, and a pull ring is fixedly installed on the side wall of the baffle. The limit block 305 is fixedly installed on the bottom of the spring rod 304, and a fixed plate 306 is fixedly installed in the middle of the spring rod 304.

[0029] Embodiment 2, based on embodiment 1, as Figure 1 and Figure 4 As shown, a limiting plate 301 is fixedly installed on the side wall of the inner end of the limiting block 3; the support frame 303, the spring rod 304, the limiting block 305 and the fixed plate 306 are partially removed, and then the limiting blocks 3 at the left and right ends are grasped and moved toward each other, and the inner side walls of the two limiting blocks 3 facing one end are in contact with the width of the paper roll, and the limiting plate 301 is located at the upper ends of the two ends of the paper roll. When the paper roll is cut under force, the two ends of the paper roll will not be lifted up due to the restrictions of the limiting blocks 3 and the limiting plates 301, and the paper roll can be cut continuously. This can also save the use of some parts, thereby saving the capital cost on parts.

[0030] The working principle of this embodiment is as follows: when in use, the cutting knife 206 corresponds to the cutting groove 103 up and down, and the cutting knife 206 moves downward to enter the cutting groove 103. Grab one end of the paper and extend the paper under the cutting knife 206. When preparing to cut the paper, first grab the pull ring and lift it upward to pull the limit block 305 out of the limit groove 102. At this time, the spring on the spring rod 304 will also shrink, and then move the limit blocks 3 at the left and right ends toward each other, so that the inner side walls of the two limit blocks 3 facing one end are in contact with the paper, and the limit plates 301 are located at the upper ends of the two ends of the paper, thereby limiting the paper, and the front and back of the paper Both ends will be restricted by the restriction block 3 and the restriction plate 301 and will not tilt up during cutting. The electric push rod 202 is used to push the supporting bar 203 downward. At this time, the cutting knife 206 and the protective frame 207 will also move downward. The bottoms of the two protective frames 207 will first contact the paper to limit the downward pressure on the front and rear ends of the paper cutting. The supporting bar 203 continues to move downward and the protective frame 207 will be fixedly erected on the fixed base 1, and the cutting knife 206 will continue to move downward to cut the paper. After the paper cutting is completed, the protective frame 207 moves upward, and the distance between the bottom of the protective frame 207 and the fixed base 1 is less than one centimeter.

[0031] In this article, there are a few points to note:

[0032] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0033] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0034] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A paper cutter with a safety protection structure, including: Fixed base (1); rectangular grooves are respectively formed at both ends of the fixed base (1); fixed frames (2) are fixedly installed at the rectangular groove positions at both ends of the fixed base (1), and a through circular hole is formed in the middle of the fixed frame (2); it is characterized in that symmetrical limiting blocks (3) are respectively fixedly installed at the front and rear ends of the fixed base (1), and the structures of the four limiting blocks (3) are the same; a through circular hole is formed in the limiting block (3); three fixing grooves are formed at the top end of the limiting block (3); a limiting plate (301) is fixedly installed on the inner side wall at the inner end of the limiting block (3); parallel adjusting blocks (302) are fixedly installed at the bottom of the limiting block (3).

2. The paper cutter with a safety protection structure according to claim 1, characterized in that: Adjusting grooves (101) parallel to each other are respectively formed at both ends of the fixed base (1), two rows of limiting grooves (102) are respectively formed at the left and right ends of the fixed base (1), and a cutting groove (103) is formed in the middle of the fixed base (1).

3. The paper cutter with a safety protection structure according to claim 1, characterized in that: Symmetrical guide grooves (201) are formed on the inner side walls of the fixed frame (2), a through electric push rod (202) is fixedly installed at the circular hole at the upper end of the fixed frame (2), a bearing bar (203) is fixedly installed at the lower end of the electric push rod (202), a card slot is formed at the bottom of the bearing bar (203), and a connecting groove is formed at the top end of the bearing bar (203).

4. The paper cutter with a safety protection structure according to claim 3, characterized in that: Guide blocks (204) are respectively fixedly installed on both side walls of the bearing bar (203), four anti - detachment grooves (205) are respectively formed on the front and rear side walls of the bearing bar (203), and a cutting knife (206) is fixedly installed at the card slot at the bottom of the bearing bar (203).

5. The paper cutter with a safety protection structure according to claim 3, characterized in that: C - shaped protective frames (207) are respectively slidably installed at both ends of the bearing bar (203), and parallel anti - detachment bars (208) are respectively fixedly installed at both ends of the inner cavity side wall of the protective frame (207).

6. The paper cutter with a safety protection structure according to claim 1, characterized in that: Support frames (303) are fixedly installed at the three fixing grooves at the top end of the limiting block (3), a through circular hole is formed in the middle of the upper end of the support frame (303), a through spring rod (304) is inserted into the circular hole in the middle of the support frame (303), a baffle is fixedly installed at the top end of the spring rod (304), and a pull ring is fixedly installed on the side wall of the baffle.

7. The paper cutter with a safety protection structure according to claim 6, characterized in that: A limiting block (305) is fixedly installed at the bottom of the spring rod (304), and a fixed disk (306) is fixedly installed in the middle of the spring rod (304).

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