Cutter bed safety protection mechanism of paper cutter

Abstract

The utility model relates to the technical field of paper cutters, and discloses a cutter bed safety protection mechanism of a paper cutter, which comprises a workbench, a cutter bed of the paper cutter is arranged on the workbench, a protective cover is arranged on the outer side of the cutter bed of the paper cutter on the workbench, and a detection groove is formed in one side, far away from the cutter bed of the paper cutter, of the protective cover. A detection area is arranged in a vertical projection area of the detection groove and the workbench, mounting grooves are formed in four corners of the detection area, foreign matter detection assemblies are arranged in the mounting grooves, and reflecting plates are arranged on the inner sides of every two adjacent mounting grooves in the protective cover; the foreign matter detection assembly is composed of two laser emitting units and two laser receiving units. Through cooperative use of the protective cover, the foreign matter detection assembly, the fixing assembly and the reflecting plate, an omnibearing laser light curtain is formed, impurities are prevented from entering a cutter bed of the paper cutter, and the device has the advantages of being large in detection range, high in safety and easy to maintain.

Description

Technical Field

[0001] The present application relates to the technical field of paper cutters, and in particular to a knife bed safety protection mechanism of a paper cutter. Background Art

[0002] "CN 212170670 U" discloses "a paper cutter with an infrared safety protection device, comprising a chassis for storing machine parts, a workbench for paper cutting operations, and a paper cutting mechanism located on the workbench for cutting paper ... two synchronous switch buttons for jointly controlling the operation of the paper cutting mechanism are provided at one end of the operating table away from the conveying table." Through the setting of the infrared safety protection device, when the operator's limbs approach the cutting area, they will be detected by the infrared safety protection device and fed back to the controller, and the controller will control the paper cutting mechanism to stop running to protect the operator's safety, until the operator's limbs leave the detection area of ​​the infrared safety protection device, the paper cutting mechanism can be started again, so as to reduce the occurrence of work-related accidents;

[0003] With respect to the above-mentioned related technologies, the inventor believes that, due to the certain height and gap between the blocking column and the workbench surface, foreign objects may pass through the gap during actual use, resulting in a problem of blind angle detection, which makes it impossible to accurately detect foreign objects at certain angles, thus affecting the detection effect;

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the problem of blind spot detection during actual use due to a certain height and gap between the stop column and the workbench surface, which makes it impossible to accurately detect foreign objects at certain angles, thus affecting the detection effect, the present application provides a knife bed safety protection mechanism for a paper cutter.

[0006] The present application provides a paper cutter bed safety protection mechanism that adopts the following technical solution:

[0007] A knife bed safety protection mechanism for a paper cutter comprises a workbench, a knife bed for a paper cutter is arranged on the workbench, a protective cover is arranged on the outer side of the knife bed for the paper cutter on the workbench, a detection slot is arranged on the side of the protective cover away from the knife bed for the paper cutter, a detection area is arranged on the vertical projection area between the detection slot and the workbench, mounting slots are arranged at four corners of the detection area, a foreign body detection component is arranged in the mounting slot, and reflective plates are arranged on the inner sides of two adjacent mounting slots on the protective cover;

[0008] The foreign body detection component is composed of two laser emitting units and two laser receiving units. The two laser emitting units and the laser receiving units are respectively arranged in corresponding installation grooves, and a fixing component is arranged on the outer side of the installation groove on the protective cover.

[0009] Preferably, a reflective measure is provided at the detection area on the workbench, and the mounting groove is an L-shaped groove.

[0010] Preferably, the laser emitting unit comprises an L-shaped plate 1, wherein emitting holes are arranged on the inner sides of two arms of the L-shaped plate 1, and laser emitting ends are arranged at the two emitting holes, wherein the emitted light of the laser emitting end is arranged obliquely to the reflecting plate on the opposite surface.

[0011] Preferably, the laser receiving unit includes an L-shaped plate 2, the inner sides of the two arms of the L-shaped plate 2 are provided with receiving holes, the two receiving holes are provided with laser receiving ends used in conjunction with the laser emitting end, and the depth of the L-shaped plate 1 and the L-shaped plate 2 is the same as that of the mounting groove.

[0012] Preferably, the fixing assembly comprises a damping shaft arranged on the protective cover, a limit block is rotatably sleeved on the damping shaft, and the inner side surface of the limit block is in contact with the outer surface of the L-shaped plate.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] Through the coordinated use of the protective cover, foreign object detection component, fixing component and reflective plate, the protective cover is fitted with the outer surface of the paper cutter bed to prevent debris from bypassing the light curtain and entering the paper cutter bed. At the same time, a paper cutting and movement space is reserved between the paper cutter bed and the detection area to prevent paper from interfering with the detection of the foreign object detection component. The light emitted by the four staggered laser emitting ends enters the corresponding laser receiving end after multiple reflections to form a dense mesh light curtain to fill the detection area for all-round detection to avoid the existence of detection blind spots and improve the detection effect. The L-shaped plate two and the L-shaped plate one are clamped in the installation groove by the limit block. The L-shaped plate two or the L-shaped plate one can be removed by moving the limit block, and replacement is more convenient. Compared with the existing technology, it has the effects of large detection range, high safety and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0016] Figure 2 is a schematic diagram of a second perspective stereoscopic structure of an embodiment of the application;

[0017] Figure 3 is a schematic diagram of a three-dimensional structure from a third viewing angle of an embodiment of the application;

[0018] Figure 4 yes Figure 1 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 5 yes Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0020] Explanation of the reference numerals: 1. workbench; 2. paper cutter bed; 3. protective cover; 4. detection area; 5. laser emitting unit; 501. L-shaped plate one; 502. laser emitting end; 6. laser receiving unit; 601. L-shaped plate two; 602. laser receiving end; 7. fixing component; 701. damping shaft; 702. limit block; 8. reflecting plate. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-5 This application is described in further detail.

[0022] The present application embodiment discloses a knife bed safety protection mechanism for a paper cutter. Figure 1-5 A knife bed safety protection mechanism for a paper cutter comprises a workbench 1, a paper cutter knife bed 2 is mounted on the workbench 1, a protective cover 3 is mounted on the outer side of the paper cutter knife bed 2 on the workbench 1, a detection slot is provided on the side of the protective cover 3 away from the paper cutter knife bed 2, the detection slot and the vertical projection area on the workbench 1 form a detection area 4, installation slots are provided at the four corners of the detection area 4, a foreign body detection component is mounted in the installation slot, and a reflector 8 is mounted on the inner sides of two adjacent installation slots on the protective cover 3;

[0023] The foreign body detection component is composed of two laser emitting units 5 and two laser receiving units 6. The two laser emitting units 5 and the laser receiving units 6 are respectively installed in corresponding installation grooves. A fixing component 7 is installed on the outer side of the installation groove on the protective cover 3.

[0024] By adopting the above technical solution, the protective cover 3 is fitted with the outer surface of the paper cutter bed 2 to prevent debris from bypassing the light curtain and entering the paper cutter bed 2. At the same time, a paper cutting and movement space is reserved between the paper cutter bed 2 and the detection area 4 to prevent paper from interfering with the detection of the foreign object detection component. The light emitted by the four staggered laser emitting ends 502 enters the corresponding laser receiving end 602 after multiple reflections, forming a dense mesh light curtain filling the detection area 4, and performing all-round detection to avoid the existence of detection blind spots and improve the detection effect.

[0025] Reference Figure 3 , a reflective measure is provided in the detection area 4 of the workbench 1, and the mounting groove is an L-shaped groove;

[0026] By adopting the above technical solution, the upper surface of the workbench 1 is generally a smooth stainless steel plate surface that can reflect lasers, and a reflective mirror surface can also be made on its upper surface.

[0027] Reference Figure 2 , Figure 4 , Figure 5 The laser emitting unit 5 includes an L-shaped plate 1 501, and the inner sides of the two arms of the L-shaped plate 1 501 are provided with emitting holes, and the two emitting holes are installed with laser emitting ends 502, and the emission light of the laser emitting end 502 is installed obliquely with the reflection plate 8 on the opposite surface. The laser receiving unit 6 includes an L-shaped plate 2 601, and the inner sides of the two arms of the L-shaped plate 2 601 are provided with receiving holes, and the two receiving holes are installed with laser receiving ends 602 used in conjunction with the laser emitting end 502, and the depth of the L-shaped plate 1 501 and the L-shaped plate 2 601 is the same as that of the installation groove;

[0028] By adopting the above technical solution, the light emitted by the four staggered laser emitting ends 502 enters the corresponding laser receiving end 602 after multiple reflections, forming a dense mesh light curtain filled in the detection area 4, performing all-round detection, avoiding the existence of detection blind spots, and improving the detection effect. Figure 2 The dotted line in the figure is a light curtain path formed by the laser emitting end 502 on two vertical planes. The laser emitting end 502 and the laser receiving end 602 are both electrically connected to the terminal controller on the knife bed 2 of the paper cutter.

[0029] Reference Figure 1 The fixing assembly 7 includes a damping shaft 701 mounted on the protective cover 3, a limit block 702 is rotatably sleeved on the damping shaft 701, and the inner side surface of the limit block 702 is in contact with the outer surface of the L-shaped plate 1 501;

[0030] By adopting the above technical solution, the damping shaft 701 is used to increase the rotation resistance of the limit block 702, so that the limit block 702 can be stationary at any position. The limit block 702 can be used to clamp the L-shaped plate 2 601 and the L-shaped plate 1 501 in the installation groove. The L-shaped plate 2 601 or the L-shaped plate 1 501 can be removed by moving the limit block 702, which makes replacement more convenient.

[0031] The implementation principle of the knife bed safety protection mechanism of a paper cutter in an embodiment of the present application is as follows: the protective cover 3 is installed on the upper end of the workbench 1 by bolts, so that the paper cutter knife bed 2 is fitted with the protective cover 3, and the light emitted by four staggered laser emitting ends 502 enters the corresponding laser receiving end 602 after multiple reflections, forming a dense mesh light curtain filling the detection area 4, and performing all-round detection to avoid the existence of blind spots in detection and improve the detection effect. When an object passes by, the light between the laser receiving end 602 and the laser emitting end 502 is blocked, and the terminal controller controls the paper cutter knife bed 2 to stop running to prevent the paper cutter from working.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A paper cutter blade safety protection mechanism, comprising a workbench (1), on which a paper cutter blade (2) is arranged, characterized in that: A protective cover (3) is arranged on the outer side of the paper cutter blade bed (2) on the workbench (1); a detection slot is arranged on the side of the protective cover (3) away from the paper cutter blade bed (2); a detection area (4) is arranged in the vertical projection area between the detection slot and the workbench (1); mounting slots are arranged at the four corners of the detection area (4); a foreign body detection component is arranged in the mounting slot; and reflective plates (8) are arranged on the inner sides of two adjacent mounting slots on the protective cover (3); The foreign body detection component is composed of two laser emitting units (5) and two laser receiving units (6), the two laser emitting units (5) and the laser receiving units (6) are respectively arranged in corresponding installation grooves, and a fixing component (7) is arranged on the outer side of the installation groove on the protective cover (3).

2. The knife bed safety protection mechanism of a paper cutter according to claim 1 is characterized in that: A reflective measure is provided in the detection area (4) of the workbench (1), and the installation groove is an L-shaped groove.

3. The knife bed safety protection mechanism of a paper cutter according to claim 1, characterized in that: The laser emitting unit (5) comprises an L-shaped plate (501), wherein the inner sides of two arms of the L-shaped plate (501) are both provided with emitting holes, and the two emitting holes are both provided with laser emitting ends (502), and the emitted light of the laser emitting ends (502) is arranged obliquely with respect to the reflection plate (8) on the opposite surface.

4. The knife bed safety protection mechanism of a paper cutter according to claim 3 is characterized in that: The laser receiving unit (6) comprises an L-shaped plate 2 (601), wherein the inner sides of the two arms of the L-shaped plate 2 (601) are both provided with receiving holes, and the two receiving holes are both provided with laser receiving ends (602) used in conjunction with the laser emitting end (502), and the depth of the L-shaped plate 1 (501) and the L-shaped plate 2 (601) is the same as that of the mounting groove.

5. The knife bed safety protection mechanism of a paper cutter according to claim 4, characterized in that: The fixing assembly (7) comprises a damping shaft (701) arranged on the protective cover (3), a limit block (702) being rotatably sleeved on the damping shaft (701), and an inner side surface of the limit block (702) being in contact with an outer surface of the L-shaped plate (501).

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