JP3204377U - Protection device for paper cutting device - Google Patents

Abstract

Provided is a paper cutting device provided with means for preventing a cutting blade from being accidentally operated during preparation work. A cutting blade 7A for cutting paper, a driving device for driving the cutting blade 7A over a standby position a and a cutting action position b, and a work table 2A for placing a bundle T of paper to be cut. Is located below the cutting blade 7A positioned at the standby position a and above the bundle T of papers placed on the work table 2A, and from the standby position a of the cutting blade 7A to the cutting action position b. A guard device 9 is provided that prevents the entry of foreign matter into the cutting action path while allowing the movement to the position, and the guard apparatus 9 can be switched between a retracted position and an action position. [Selection] Figure 2

Description

The present invention provides a paper having a cutting blade for cutting paper, a driving device for driving the cutting blade over a standby position and a cutting action position, and a work table on which a bundle of paper to be cut is placed. A protection device for a similar cutting device,
Specifically, a rectangular envelope displayed with the type name of long No. 1 or No. 2 is intended to protect the worker against the paper cutting device used in the cutting process before making the folding norisuke. The present invention relates to a protection device for a paper cutting device.

  In general, as a method for creating an envelope, there is a method called an eccentric cutting method in which both corners of opposite sides of the rectangular base paper 10 that are the head and the bottom are cut, and the eccentric cutting method will be described. As shown in FIG. 7A, the cutting blade 7B is applied to both corners of the side that becomes the head 10A of the envelope 10C, and as shown in FIG. 7B, the cutting blade 7B cuts off the length L1. This side becomes an open end when an envelope is formed. As shown in FIG. 7C, the opposite side of the bottom portion 10B, which becomes the closed end when the envelope 10C is formed, is reversed to the cutting blade side, and both ends of the diagonal side are cut off by the cutting blade 7B. The length L2 to be cut off is shorter than the length L1 on the opening end side. As described above, the envelope base paper that has been cut and formed is folded at the opposing fold lines 10a shown in FIG. 7 (d) and overlapped at the center to form a bag shape. Thereafter, as shown in FIG. 7 (e), the closed end is formed by being folded along a folding line 10b.

  In order to cut the envelope base paper as described above, a predetermined number of the base papers are stacked and placed on the work surface of the work table. An operator pressed the upper surface of the base paper to perform preparatory work such as air venting on the placed base paper, and then cut by driving the cutting blade of the cutting device.

nothing special

  However, in the above case, when an operator who is not familiar with the cutting device is engaged in the work, the above-mentioned base paper is placed on the work surface, and the hand is placed on the surface of the base paper, such as scraping or bleeding. During the preparatory work, the cutting blade may be accidentally operated, and there is a risk that the worker may be injured.

An object of the present invention is to provide a protection device for a paper cutting device provided with means for preventing the cutting blade from being accidentally operated during the preparatory work.

〔Constitution〕
The characteristic configuration of the device according to claim 1 is located between a cutting blade movably positioned between the standby position and the cutting action position, and a bundle of papers placed on the work table, and A guard device is provided that prevents movement of the cutting blade into the cutting action path while allowing the cutting blade to move from the standby position to the cutting action position, and the guard device can be switched between the retracted position and the working position. The operation and effect are as follows.

[Action]
In other words, by placing the guard device in the operating position, even if the worker tries to prepare for a bundle of papers, the work is difficult due to the presence of the guard device, and as a result, the operator's fingers, etc. It is possible to prevent other objects from entering the cutting action path.
On the other hand, when performing a preparatory work on paper or the like placed on the work table, the work can be performed with a large space by positioning the guard device at the retracted position.

〔effect〕
Therefore, by providing a guard device, the guard device must be positioned at the working position when performing cutting work, and the guard device is positioned at the retracted position when preparing paper or the like. It is possible to establish a work regulation standard saying that it is possible to reduce the probability of work accidents as much as possible.

〔Constitution〕
A characteristic configuration of the invention according to claim 2 is that the guard body of the guard device is installed on the operator side of the work table from the cutting action path, and the left and right sides of the bundle of papers placed on the work table are left and right. The operation and effect are as follows.

[Function and effect]
The guard body of the guard device is composed of a long member that crosses left and right on a bundle of paper, so that it has a simple structure but sufficient structure to alert the operator during preparatory work. I was able to provide it.

FIG. 1 is an overall perspective view of a paper cutting device. FIG. 2 is an overall front view of the paper cutting apparatus. FIG. 3 is an overall side view of the paper cutting device. FIG. 4 is a perspective view showing a guard device as a protection device. FIG. 5 is an exploded perspective view showing the guard device. FIG. 6 is a perspective view showing another structure of the guard device. Fig.7 (a) is an effect | action figure which shows the manufacturing process of an envelope. FIG. 8A is a rear view showing the cutting blade and the movable frame frame of the paper cutting device containing the driving device for the cutting blade, and FIG. 8B is a diagram showing the cutting blade by driving the driving device for the cutting blade. It is a rear view which shows the state operated toward the cutting action position. FIGS. 9A, 9B, 9C, and 9D are operational views showing an eccentric mechanism for driving the cutting blade. FIG. 10 is a longitudinal side view showing a cutting blade and a movable frame of a paper cutting device that houses a driving device for the cutting blade. FIG. 11 is a schematic configuration diagram illustrating a clutch mechanism and an operation structure for the clutch mechanism.

Embodiment
The paper cutting apparatus A used for paper, especially for envelope creation will be described.
As shown in FIG. 1, the paper cutting apparatus A mounts a plate-shaped rectangular work table 2 on the upper surface of the gantry 1 and a bundle T of cut sheets formed at the center position of the work table 2. The surface 2A, the movable frame 3 that holds the cutting mechanism B above the mounting surface 2A, the guide frame 4A that holds the movable frame 3 slidable from both sides and the rear part, and the guide frame 4A at the front end A support case 4 also serving as a transmission case standing from the rear of the mounting mounting surface 2A, a power supply case 5 connected to the support case 4 and a transmission wheel 5A for supplying power to the drive case 5 are arranged. Has been configured.

The cutting mechanism B will be described. As shown in FIGS. 8A, 8 </ b> B, and 10, the cutting mechanism B includes a movable frame frame 3 that holds the cutting blade mechanism 7 and performs a cutting slide operation, and a cutting drive device that drives the movable frame frame 3. C.
As shown in FIGS. 8 (a) and 8 (b), the movable frame 3 is a box-shaped frame that is vertically long and has an open back surface, and slides up and down while being sandwiched between the guide frames 4A from both sides. . Inside, a rectangular interlocking member 6 that holds the eccentric mechanism 12 and a cutting mechanism position adjusting device 18 that adjusts the relative height of the interlocking member 6 to the movable frame 3, that is, the height of the cutting blade mechanism 7. keeping.

  As shown in FIGS. 8 (a) and 8 (b), the interlocking member 6 that holds the eccentric mechanism 12 is located in the frame inner space of the movable frame frame 3 and is formed on both lateral side walls of the movable frame frame 3. Slide up and down along (not shown). That is, the vertical height h of the interlocking member 6 is smaller than the vertical height H of the internal space of the movable frame frame 6, and the interlocking member 6 can move up and down in the internal space of the movable frame frame 6.

  The cutting drive device C will be described. As shown in FIG. 10, the cutting drive device C includes an eccentric mechanism 12 held inside the interlocking member 6, a crank pin 13A for driving the eccentric mechanism 12, and the crank pin 13A integrally formed at the tip thereof. A transmission shaft 13 supported in the case 4 via bearings 16 and 16, a power input transmission wheel 5A attached to the end opposite to the crank pin 13A, the transmission shaft 13 and the transmission wheel 5A. And a clutch mechanism 15 formed between the two.

The eccentric mechanism 12 will be described. As shown in FIGS. 8 to 10, the eccentric mechanism 12 is engaged with the crank pin 13A and has a top member 12A that moves up and down and left and right by a rotational operation around the axis of the transmission shaft 13 of the crank pin 13A. It has the above-mentioned interlocking member 6 that holds the top member 12A and operates in conjunction with it.
The top member 12A is engaged with a laterally long hole 6A formed in the interlocking member 6 via a metal bearing 12a, and when the laterally moving component of the crank pin 13A is received, it moves in the lateral direction of the long hole 6A and interlocks. It does not move integrally with the member 6, and when it receives the upward / downward movement component of the crank pin 13 </ b> A, it moves in the up / down direction and moves in the up / down direction integrally with the interlocking member 6.

  As shown in FIGS. 8 to 10, the interlocking member 6 is composed of an adjustable handle 14 rotatably attached to the top plate portion 3A of the movable frame frame 3 and a connecting bolt 6B extending forward from its front surface. 3 is integrated. In other words, the adjustment handle 14 has a male screw portion 14a formed in a portion protruding downward from the top plate portion 3A, and the male screw portion 14a is screwed into the female screw portion 6a formed on the upper surface of the interlocking member 6. Combined.

On the other hand, the connecting bolt 6B is inserted from the front through a vertically long hole 3b formed in the front surface 3B of the movable frame 3 and is screwed into the interlocking member 6 so that the interlocking member 6 and the movable frame 3 are integrated. It is connected.
With the above-described configuration, the crank pin 13 </ b> A operates by moving the interlocking member 6 and the movable frame frame 3 up and down integrally through the eccentric mechanism 12 and performing the cutting operation with the cutting blade mechanism 7.

As shown in FIGS. 10 and 11, the clutch mechanism 15 includes a clutch case 15A that slidably holds the connecting pin 15a, and a biasing spring 15b that biases the connecting pin 15a in the connecting direction in the clutch case 15A. And is turned on and off by a clutch operation mechanism 11 to be described later.
An engagement hole 5a is formed on the surface of the transmission wheel 5A toward the clutch case 15A, and the clutch mechanism 15 enters the engaged state when the tip of the connecting pin 15a engages with the engagement hole 5a. .

  As shown in FIGS. 3 and 11, a clutch operating mechanism 11 for the clutch mechanism 15 is provided in the vicinity of the driving case 5. 11A is a drive cylinder as a clutch drive device of the clutch operation mechanism 11. An operating rod 11B is erected upward from the drive cylinder 11A, and a balance operating tool 11C is provided on the distal end side of the operating rod 11B. As shown in FIG. 11, the operating end 11a of the balance operating tool 11C enters the intermediate groove 15c portion of the clutch case 15A and prevents the connecting pin 15a from moving to the engaging side.

  Then, when the operating rod 11B is pulled down and the operating end 11a of the balance operating tool 11C is lifted from the intermediate groove 15b of the clutch case 15A, the connection pin 15a is released and the engagement hole 5a of the transmission wheel 5A is released. The connecting pin 15a is engaged, and the clutch engagement state appears. To release, when the operating rod 11B is lifted, the operating end 11a of the balance operating tool 11C pulls the connecting pin 15a to the standby biasing position and operates.

  The cutting blade mechanism 7 will be described. As shown in FIGS. 2 and 3, the cutting blade mechanism 7 includes a rectangular thick plate support 7A attached to the lower end of the movable frame 3 and a cutting blade 7B fixed to the downward surface of the support 7A. And is formed. The cutting blade 7B moves up and down along a cutting action path between a standby position a located above the placement surface 2A and a cutting action position b that extends from the standby position a to the top surface of the placement surface 2A.

  As shown in FIGS. 9A to 9D, the movable frame 3 of the cutting mechanism B, the interlocking member 6 located in the internal space thereof, and the top member 12A held by the interlocking member 6 are In response to the rotational operation of the pin 13A, it moves up and down together to perform a cutting action. It moves up and down between the standby position a in FIG. 9D and the cutting action position b in FIG. 9B.

  The cutting position adjusting device 18 will be described. As shown in FIGS. 8 to 10, it has been described that the interlocking member 6 holding the piece member 12 </ b> A moves up and down integrally with the movable frame frame 3 to perform a cutting action. The interlocking member 6 moves up and down relatively with respect to the movable frame frame 3 while holding the top member 12A. That is, when the adjustment handle 14 is rotated in one direction, the interlocking member 6 relatively moves up and down while holding the top member 12A. When the adjustment handle 14 is rotated in the other direction, the interlocking member 6 is relatively moved in the opposite direction.

By the way, since the interlocking member 6 holding the top member 12A is connected to the fixed side via the transmission shaft 13, in practice, when the adjustment handle 14 is rotated, the movable frame 3 is moved relative to the interlocking member 6. It will move relative. In this case, it is necessary to loosen the connecting bolt 6B that connects the interlocking member 6 and the movable frame 3.
That is, by loosening the connection bolt 6B to loosen the connection state between the movable frame frame 3 and the interlocking member 6 and rotating the adjustment handle 14, the movable frame frame 3 can be moved up and down relative to the interlocking member 6. The standby position a of the cutting blade mechanism 7 attached to the lower end of the movable frame 3 can be changed and adjusted.
Accordingly, from the state of FIG. 8A, when the adjustment handle 14 is rotated and the interlocking member 6 is raised relative to the movable frame frame 3 as shown in FIG. The movable frame 3 is lowered, and the standby position a of the cutting blade mechanism 7 can be adjusted and moved downward. The above is the configuration of the cutting position adjusting device 18.

  As shown in FIGS. 1 to 3 and 7 to 9, the cutting blade 7 </ b> B has a symmetrical shape and is provided with a pair of left and right plates, and a straight portion 7 a in a front-facing posture on the left and right ends, and its An inclined portion 7b that is refracted rearward from the inward end of the straight portion 7a is integrally formed. In this way, the corner portions 10a and 10a of the envelope forming base paper 10 in FIG. 7A are cut by the pair of left and right cutting blades 7B which are formed by refraction.

  As shown in FIGS. 2 and 3, the stack T of cut sheets placed on the mounting surface 2A on which the bundle T of cut sheets formed at the center position of the work table 2 is placed is regulated. As shown in FIG. 2, an angle-shaped lateral regulating body 8A that regulates the position from the left side as shown in FIG. 2, and a bundle T of cutting sheets are regulated at the back side as shown in FIG. It is comprised with the back control body 8B. Both the lateral regulation body 8A and the back regulation body 8B are configured to be able to change the regulation position left and right and back and forth.

  Next, the guard device 9 that prevents foreign matter from entering the cutting action path will be described. As shown in FIGS. 1 to 5, the guard device 9 includes a long plate-shaped guard body 9A, and left and right drive cylinders 9B and 9B as guard drive devices that support the guard body 9A so as to be movable up and down from side to side. It consists of a support base 9C attached to the side surface of the work table 2 to support the left and right drive cylinders 9B, 9B.

  As shown in FIGS. 4 and 5, the guard body 9A is fixed to the narrow long plate member 9a having a length extending to the left and right ends of the work table 2, and to the left and right ends of the narrow long member 9a. A rectangular plate-shaped mounting bracket 9b and a short contact plate 9c fixedly attached to the lower surface of the narrow long plate material 9a. A plurality of mounting bolt holes 9e are formed in the narrow long plate member 9a and the short contact plate 9c.

As shown in FIGS. 4 and 5, a pair of upper and lower angle mounting brackets 9d and 9d are mounted and fixed on the support base 9C to mount the drive cylinder 9B. The pair of upper and lower angle mounting brackets 9d. 9d, the drive cylinder 9B is attached.
A connecting rod 9g extends from the upper end of the drive cylinder 9B, and a mounting bracket 9b of the guard body 9A is sandwiched and connected to the tip of the connecting rod 9g by upper and lower nuts 9f and 9f.

With the configuration as described above, the guard body 9A is movable with the stroke L4 over the retracted position positioned above and the operating position moving downward.
As shown in FIG. 4, the upper end surface of the support base 9 </ b> C receives the lower surface of the guard bracket 9 b of the guard body 9 </ b> A when the guard body 9 </ b> A descends, That is, it is a restriction surface for setting the action position.

  With the above configuration, the operator confirms that the guard body 9A has reached the upper surface of the envelope base paper bundle, depresses the foot pedal 13, and enters and operates the clutch mechanism 15 with the clutch operating mechanism 11. The cutting mechanism B can be activated.

[Another embodiment]
(1) The structure of the drive cylinder 9B may be as follows. As shown in FIG. 6, the support base 9C to which the drive cylinder 9B is attached is configured to be attached to the work table 2 via the attachment plate 9D. Similarly to the above-described embodiment, a pair of upper and lower angle mounting brackets 9d and 9d are mounted and fixed on the support base 9C, and the drive cylinder 9B is mounted on the angle mounting bracket 9d. .

  The paper cutting device A according to the present invention is a device that can be used more safely by providing the guard device 9.

DESCRIPTION OF SYMBOLS 1 Stand 2 Working table 2A Placement surface 3 Movable frame frame 4 Support case 4A Guide frame 5 Driving case 5A Transmission wheel body 6 Interlocking member 6A Long hole 7 Cutting blade mechanism 7A Support body 7B Cutting blade 7a Linear portion 7b Inclined portion 8 Restriction Body 8A Horizontal regulating body 9 Guard device 9A Guard body 9B Drive cylinder 9C Support base base 9a Narrow and long plate material 9b Mounting bracket 9c Per contact plate 9d Angle-shaped mounting bracket 9e Mounting bolt hole 9f Nut 9g Linking rod 10 Base paper for envelope 10a Both corners 11 Clutch operating mechanism 11A Clutch drive device (drive cylinder)
11B Operating rod 11C Balance operating tool 11a Operating end 12 Eccentric mechanism 12A Top piece member 12a Metal bearing 13 Transmission shaft 13A Crank pin 14 Adjustment handle 14a Male thread 15 Clutch mechanism 15A Clutch case 15a Connecting pin 15b Intermediate groove 16 Bearing 17 Foot Pedal 18 Cutting mechanism vertical position adjustment device A Paper cutting device B Cutting mechanism C Cutting drive device T Bundle of paper a Standby position b Cutting action position

Claims (2)

A paper cutting device comprising a cutting blade for cutting paper, a driving device for driving the cutting blade over a standby position and a cutting action position, and a work table on which a bundle of paper to be cut is placed. A protective device,
Below the cutting blade located at the standby position, above the bundle of papers placed on the work table, and allowing the cutting blade to move from the standby position to the cutting action position. A protective device for a paper cutting device, which is provided with a guard device that prevents entry of foreign matter into the cutting action path, and that can be switched between a retracted position and an action position. The guide body of the guard device is a long member that is installed on the worker side of the work table from the cutting action path and traverses left and right on a bundle of papers placed on the work table. Protection device for paper cutting equipment.

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