JPH04112795U - tape cutter - Google Patents

Abstract

(57) [Summary] [Purpose] A tape cutter that can manufacture multiple narrow tapes at the same time by cutting one end side of a continuous sheet with multiple blades in sequence. To facilitate various adjustment operations such as blade spacing when changing width. [Structure] A sheet is selected from among multiple rolls with different diameters and pivoted on a base frame as a cradle for a cutter, and the leading edge of the continuous sheet is cut by a sheet feeding device in each operation. The roll is rotated by an angular range that allows the roll to be sent to the cutting position side by length, and a plurality of blades are mounted so as to be able to move forward and backward toward the center of rotation of the roll.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

In this invention, one end of the continuous sheet is sequentially cut in the width direction of the continuous sheet with a knife. This invention relates to a tape cutter for manufacturing width tapes.

0002

[Conventional technology]

5 and 6 show a conventional tape cutter of this type. This conventional The tape cutter feeds the sheet from the sheet roll A made by winding the continuous sheet B. The device 103 sequentially feeds the continuous sheet B by a certain length toward the cutting position. cutting the leading end Ba side of the continuous sheet B with a blade 142 that moves in the sheet width direction, A narrow tape C having a predetermined width L can be manufactured.

0003 In the conventional tape cutter shown in FIGS. 5 and 6, the blade for cutting the sheet is 142 uses a total of three sheets, and one operation simultaneously releases three sheets from the leading edge of the sheet. It is designed to cut narrow tapes C, C, C. In addition, at the sheet cutting position, A pedestal 102 is provided to support the leading edge Ba of the sheet to be cut from the lower surface side. . A total of three cutting edges of each blade 142 are fitted into the upper surface of this pedestal 102. Book narrow grooves 121, 121, 121 are formed.

0004 By the way, when manufacturing narrow tapes C having different widths L (FIG. 5), each cutter 142 , 142, 142 (Fig. 6) must be adjusted. Adjustments are made by moving each blade 142, 142, 142 to the reference position (for example, when feeding the sheet The stopping position of the leading edge of the sheet and the setting of the cutter adjacent to the lower side in the sheet feeding direction. This was done by visually displacing the continuous sheet B in the length direction relative to the installation position, etc.). . After the adjustment, make a trial cut and measure the width L of the cut narrow tape B. By measuring, it was confirmed whether the distance M was accurate. Also, it should be manufactured When changing the width L of the narrow tape C, each time the sheet feeding device 103 It is also necessary to adjust the sheet feed amount of You need to replace it with one.

[0005]

[Problem that the idea aims to solve]

However, with the conventional tape cutter shown in FIGS. When manufacturing tape C, as described above, each blade 142 is displaced and adjusted by eye. After adjusting, make a trial cut and check whether the distance M between each blade is accurate. As a result, it became troublesome to adjust the blade spacing M, and as a result of trial cutting, If the width L of the narrow tape C is not accurate, it is necessary to readjust the position of the cutter. In addition, when changing the width of narrow tape C, in addition to adjusting the distance between the blades mentioned above, the sheet feeding device Adjustment of the amount of sheet feeding per one time of the tray 103 and replacement of the pedestal 102 are performed. Each time the width of the narrow tape C to be manufactured is changed, various precise adjustments must be made. The problem was that it required a lot of work and that it took a long time to make the changes.

[0006] In view of the problems of the conventional tape cutter mentioned above, the present invention has been developed to cut narrow tape cutters of different widths. We offer a tape cutter that makes it easy to make various adjustments when manufacturing tapes. The purpose is to provide

[0007]

[Means to solve the problem]

In this invention, one end of the continuous sheet is sequentially cut in the width direction of the continuous sheet using a knife. When cutting sheets, the tape cutter is designed to manufacture narrow tapes. It serves as a cradle for cutlery, and at the fixed position of the base frame, multiple pieces of different diameters can be mounted. A rotatably supported roll that can be selected from among the rolls and can be replaced freely, and a support base. , a plurality of blades are attached at predetermined intervals in the length direction of the continuous sheet. A cutter unit formed by the roll, and the cutter unit placed at a certain distance from the rotation center of the roll. A cutter unit that moves parallel to the axis of the roll at separate positions. a moving device and a continuous sheet that is in contact with the outer peripheral surface of the roll for each operation; An angle that allows one end of the cutter to be sent to the cutting position side by the length of the sheet to be cut by each of the blades. a sheet feeding device that rotates the roll by a degree range; Each blade is adjusted forward and backward relative to the support base, respectively, toward the rotation center of the roll. It is characterized by being guided as much as possible.

[0008]

[Effect]

In the tape cutter of this invention, the base is the roll that serves as a cradle for the blade when cutting sheets. It can be replaced at the fixed position of the frame, and on the other hand, it has multiple blades. The blade unit to be rotated is rotated at a position a certain distance away from the center of rotation of the roll. It is designed so that it can be moved parallel to the axis of the wheel. Also, one end of a continuous sheet On the side, the roll is rotated by a predetermined angle range by a sheet feeding device. As a result, each cut length is fed to the cutting position. And each blade The cutting edges of the objects are spaced equally apart from each other and are in contact with the outer peripheral surface of the roll. Operate this tape cutter while it is set in a position where it can cut a continuous sheet. Then, the cutter unit is moved in the axial direction of the roll, and each cutter cuts a continuous sheet. Cut one end to the specified width, and cut the same number of narrow tapes as the blades per operation. They can be manufactured at the same time. Then, the blade unit moving device and sheet feeding device are installed. Narrow tapes of the same size are manufactured one after another by alternating operation of the will be done.

[0009] By the way, the roll rotates only within a predetermined angle range for each operation of the sheet feeding device. Since the roll is designed to move, if you change it to a roll with a different diameter, the roll Length of movement of the outer peripheral surface per time (i.e., length of continuous sheet feeding per time) begins to change. On the other hand, when the diameter of the roll changes, each blade also changes its blade. It is necessary to adjust the advance and retreat of each blade so that the tip corresponds to the outer peripheral surface of the roll. Each object can be adjusted forward or backward toward the center of rotation of the roll. , the distance between the cutting edges of each blade can be increased or decreased at equal intervals. Therefore, when trying to manufacture narrow tapes with different widths, A roll with a diameter corresponding to the width of the narrow tape to be used is adopted, and each cutter is individually rolled. Adjustment is completed by simply moving the lever forward or backward toward the center of rotation.

0010

[Effect of the idea] According to the tape cutter of the present invention, the width of the narrow tape to be manufactured can be adjusted. Attach a roll of the same diameter to the base frame, and place the cutting edge of each of the multiple blades on the roll. Simply adjust the direction toward the center of rotation to the position corresponding to the surface of the roll, and the desired The width of the narrow tape to be manufactured can be changed. This simplifies the work involved and allows the production of narrow tapes with mutually equal widths. or , even when changing the width of the narrow tape to be manufactured, one roll of the roll that serves as the pedestal There is no need to change the rotation angle range of the hit, and there is no need to adjust the sheet feed width. It has the effect of becoming essential.

[0011]

【Example】

An embodiment of the present invention will be described with reference to FIGS. 1 to 4. The tape of this embodiment The cutter is capable of manufacturing narrow tape C sequentially from continuous sheet B. There is a base frame 1 having a pair of side walls 11, 11, and a space between the two side walls 11, 11. The roll 2, which is installed on the Next, a sheet feeding device 3 for feeding the sheet into a predetermined length at a time to a sheet cutting position, and a continuous sheet A cutter unit for cutting the tip Ba of the sheet B in the width direction of the continuous sheet B. 4 and a blade unit mover for moving the blade unit 4 for sheet cutting. The basic configuration includes a moving device 5.

0012 In this example, an adhesive sheet with release paper is used as the continuous sheet B. In addition, the continuous sheet B is wound into a roll as a sheet roll A, and the continuous sheet B is attached to a base frame as a sheet roll A. It is installed on 1.

[0013] The roll 2 that serves as the blade holder is available in multiple rolls with different diameters. One roll 2 is selected from among the rolls and used. The diameter of roll 2 is As described above, this is a factor that determines the width L (see FIG. 3) of the narrow tape C to be manufactured. Therefore, a roll 2 having a predetermined diameter is selected and used depending on the width of the tape to be manufactured.

[0014] The outer peripheral surface of the roll 2 has a large number of narrow grooves 21, 21, which serve as receiving grooves for the cutter 42. are formed at predetermined equal angular intervals in the roll axis direction. Each of these details In this embodiment, a total of 36 grooves 21, 21, etc. are formed at 10° angle intervals. Ru. Note that the narrow grooves 21, 21, etc. are arranged at equal angular intervals (angle 1 The same number of rolls (36 rolls) are formed at 0° intervals), so the rolls have a large diameter. 2, the interval between each of the narrow grooves 21, 21 becomes larger. For example, as shown in Figure 4, In the case of roll 2' (for example, the roll diameter is 343.77 mm), two adjacent The spacing between the narrow grooves 21, 21 is quite large (sign M' = about 30 mm), and on the contrary, it is small. If the diameter of the roll is 2" (for example, the roll diameter is 229.18 mm), the same spacing will be The distance between each of these narrow grooves 21, 21 will be determined later. This is the width L of the narrow tape C to be manufactured as described above.

[0015] The sheet feeding device 3 rotates the roll 2 intermittently by a predetermined angle range θ. By this, the tip Ba side of the continuous sheet B that is in contact with the outer peripheral surface of the roll 2 is configured to be able to sequentially supply the sheet cutting length to the sheet cutting position one cutting length at a time. There is.

[0016] Specifically, the sheet feeding device 3 controls the sheet cutting position on the outer peripheral surface of the roll 2. A touch roll 33 is installed on the upper side in the rotational direction than the position, and both rolls 2 and 33 perform a continuous series. The continuous sheet B is sucked onto the outer peripheral surface of the roll 2 which holds the sheet B and serves as a pedestal. It is equipped with a vacuum device 35 for attaching the material, and further receives power from a motor 31. The indexer 32 moves the roll 2 at a constant angle θ (in this example, angle θ = 30°). It is configured to rotate intermittently.

[0017] The touch roll 33 can be adjusted toward and away from the roll 2. The diameter of the roll 2 used can be adjusted accordingly.

[0018] The vacuum device 35 makes the roll 2 hollow, and the vacuum device 35 has a hollow part 3 on the outer peripheral surface of the roll 2. A large number of small holes 37, 37... reaching 6 are formed, and the air inside the hollow part 36 is vacuumed. It is designed to be able to be suctioned by an empty pump 38. Note that this vacuum device 35 is The sealing devices 39, 39 provided in the hollow part 36 of the roll 2 seal the outer peripheral surface of the roll 2 It acts only on the upper part where the seal cutting position is located.

[0019] Therefore, in this sheet feeding device 3, the tip of the continuous sheet B is Ba is passed between the roll 2 which serves as a blade holder and the touch roll 33, and the vacuum When the position 35 is activated, the leading end Ba side of the continuous sheet is attracted to the outer peripheral surface of the roll 2. By rotating the roll 2 in this state, the leading edge of the continuous sheet The Ba portion can be sent out exactly by one pitch.

[0020] In this embodiment, the blade unit 4 includes a total of three blades 42, 42, 42 is attached. Each cutter 42, 42, 42 has an appropriate length (for example, A narrow plate-like blade with a diameter of about 200 to 250 mm is used. A double-edged cutting edge 42a is formed at the lower end of 42 so that it can be cut from either the front or back. has been done. Incidentally, the mounting structure of each blade 42, 42, 42 will be described later.

[0021] This cutter unit 4 is rotated by the cutter unit moving device 5 to rotate the roll 2. A predetermined distance (for example, about 500 mm) from the center P directly above the roll 2. It is configured to be able to reciprocate in parallel to the axis of the roll 2 at this position.

[0022] This blade unit moving device 5 includes a guide for guiding the support base 41 of the blade unit 4. The guide rail 51 and the cutter unit 4 are moved back and forth along the guide rail 51. It has a drive device 52 that includes The guide rail 51 is located directly above the roll 2. It is constructed between both side walls 11, 11 of the base frame 1. The drive device 52 is An endless chain 53 installed near the guide rail 51 is connected via a cam device 54. It is configured so that it can be circulated by a motor 31. Support stand 4 for knife unit 4 1 and the endless chain 53 are connected by a link material 55. Also, the motor 31 is The motor of the sheet feeding device 3 is shared.

[0023] When the motor 31 is activated, this blade unit moving device 5 moves to a cam device. 54, the rotational movement of the roll 2 (rotating by an angle of 30°) is slightly delayed, and the endless The chain 53 travels exactly half the length, and the cutter unit 4 is moved to the position 4 in FIG. Move from position 4' (or position 4') to position 4' (or position 4). It is now possible to tighten it. Note that the movement range of this blade unit 4 is limited to each blade 42. is set so that it can completely pass through the narrow groove 21 forming part of the roll 2. .

[0024] A cutter 42 is attached to the lower surface of the support stand 41 of the cutter unit 4, respectively. Plates 43, 43, 43 are extended downward. Each plate 4 3, 43, and 43 are mutually shifted back and forth (in the roll axis direction) as shown in Fig. 2. In addition, as shown in FIG. It is. In addition, each of the plates 43, 43, 43 has an intermediate plate as shown in FIG. The plate 43 is provided in a vertical position, and the two left and right plates 43, 43 are respectively lowered. It is provided in an attitude that is inclined toward the direction toward the intermediate plate.

[0025] Each blade 42, 42, 42 of the blade unit 4 is held in a holder 44, respectively. It is attached to each of the plates 43, 43, 43 in a state of being held. Each cutter 42 is a holder -44 by set screws 45,45, and the set screws 45,4 When loosening 5, the cutter 42 can be slid in the length direction of the cutter relative to the holder 44. It looks like this. Moreover, each holder 44, 44, 44 is attached to the plate 43, respectively. The plate 43 is attached in such a manner that it can slide in the length direction, and the plate 43 can be adjusted. The height of the holder 44 can be adjusted using bolts 46.

[0026] As shown in FIG. The cutter 42 is spaced apart from each other, and the cutter 42 is connected to each holder 44, 44, It can be adjusted forward and backward in the direction toward the rotation center P of the roll 2. Also, each hole Adjust the movers 44, 44, 44 forward and backward relative to the respective plates 43, 43, 43. Even when the blades 42, 42, 42 are oriented toward the rotation center P of the roll 2, It is designed to slide. That is, in this embodiment, each adjacent cutter 42, 42, 42 always have an angle of 10° with respect to the rotation center P of the roll 2. It is designed so that it can be adjusted forward or backward in the same state.

[0027] In this way, as shown in FIG. If a large diameter roll is used or a small diameter roll indicated by the symbol 2'' is used. Even if the cutting edge 42a of each blade 42, 42, 42 is When adjusted to the position reaching the narrow groove 21 of the roll, the three cutting edges 42a Sheet leading edge feed when each roll (2' or 2'') rotates by one pitch It will be located at a position that accurately divides the length (M'×3 or M''×3) into three equal parts.

[0028] In FIGS. 2 to 4, reference numeral 6 indicates the leading edge of the continuous sheet at the sheet cutting position. A pressing member for pressing both ends of the sheet in the width direction onto the surface of the roll 2, When the roll 2 rotates, the pressing member 6 moves upward and separates from the top surface of the sheet. When cutting the sheet, it moves downward and presses the top surface of the sheet.

[0029] The illustrated embodiment of the tape cutter is used in the following manner. Narrow width tape to be manufactured Once the width L (Fig. 3) of the narrow tape C is determined, the diameter (width L) corresponding to the width of the narrow tape C is determined. Select the roll 2 (having a narrow groove interval M equal to ) and attach it to the base frame 1. . Then, each of the blades 42, 42, 42 is connected so that each cutting edge 42a thereof is on the outer circumferential surface of the roll. Adjust the advance and retreat so that it can pass through the position reaching the narrow groove 21 of the continuous sheet B, and then move the continuous sheet B. If the tip Ba is passed between the roll 2 and the touch roll 33 and guided to the sheet cutting position, it is ready. Preparations are complete. Then, the vacuum pump 38 of the vacuum device 35 is activated. When the operation is started, each time the motor 31 operates, the roll 2 that serves as the pedestal While rotating at an angle of 30 degrees, the blade unit 4 moves along the guide rail 51. Continuous sheets that move forward or backward one time at a time and are sent out to the sheet cutting position one after another. Cut the tip side of B with three blades 43, 43, 43, respectively, and cut them together for one operation. A total of three narrow tapes C, C, and C can be manufactured. motor 31 for a predetermined time By continuously operating at intervals, the continuous sheet B can be cut sequentially from its leading edge. By cutting, a narrow tape C can be manufactured continuously.

[0030] In addition, when manufacturing narrow tapes C with different widths L, the manufacturing process is similar to the above. After replacing the roll 2 with a diameter corresponding to the width of the narrow tape C to be used, each cutter 42, 42, 42 may be moved forward or backward to a predetermined position.

[0031] In this embodiment, a total of three blades 42 are used, but in other embodiments, three blades 42 are used. The number of knives may be two or an appropriate number of four or more.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a tape cutter according to an embodiment of the present invention.

FIG. 2 is a view taken along the X arrow in FIG. 1;

FIG. 3 is a cross-sectional view taken along the YY line in FIG. 2;

FIG. 4 is an explanatory diagram of the operation of the tape cutter in FIG. 1;

FIG. 5 is a perspective view of a conventional tape cutter.

FIG. 6 is a view taken along the Z arrow in FIG. 5;

[Explanation of symbols]

1 is a base frame, 2 is a roll, 3 is a sheet feeding device,
4 is a blade unit, 5 is a blade unit moving device, 21 is a narrow groove, 31 is a motor, 35 is a vacuum device, 41 is a support stand, 42 is a blade, 42a is a cutting edge, 51 is a guide rail, 52 is a drive device, B is a continuous sheet, Ba is the tip of the continuous sheet, C is a narrow tape, and P is the center of rotation.

Claims (1)

[Scope of utility model registration request] [Claim 1] A narrow tape (C) can be manufactured by sequentially cutting one end (Ba) side of the continuous sheet (B) in the width direction of the continuous sheet (B) with a knife (42). The tape cutter serves as a cradle for a blade (42) during sheet cutting, and is pivotally supported at a fixed position on the base frame (1) so that it can be selected from among a plurality of rolls with different diameters and replaced. Multiple blades are attached to the roll (2) and the support stand (41).
(42, 42, 42) attached at a predetermined interval in the length direction of the continuous sheet (B)
(4), and a blade unit moving device (5) that moves the blade unit (4) parallel to the axis of the roll (2) at a position spaced a certain distance from the rotation center (P) of the roll (2). ), and the sheet length that is cut by each of the blades (42, 42, 42) at one end (Ba) side of the continuous sheet (B) that is in contact with the outer peripheral surface of the roll (2) in one operation. The roll (2) is moved only in the angle range (θ) that can be fed to the cutting position side by minute.
The blades (42, 42, 42) each include a sheet feeding device (3) that rotates the support base (41).
A tape cutter characterized in that the tape cutter is guided so as to be able to be adjusted forward and backward toward the rotation center (P) of the roll (2), respectively.