JP2017094447A - Can body seam cutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the measurement of a cut-off part to rapidly and easily executed with no troublesome preparatory work by automatically cutting off a plurality of measurement parts of a seam part of a can body moved up and down by manual operation.SOLUTION: A seam cutter device is configured by providing the top edge of a spindle 15 with a lifter plate 2 having cutting groove holes 20 at a plurality of points in the outer periphery, mounting a cutter holder 4 on a drive shaft 3a of a motor 3 to hold a cutter blade 5 to freely be attachable to and detachable from this cutter holder 4, concentrically arranging an upper plate 8 that clamps a can body K with the lifter plate 2 on a top support base 7 supported above a base 1 via struts 6 to make the upper plate 8 movable up and down by the operation of a handle 9, to make a safety protection cover 10 mountable on and dismountable from the base 1, and to make the cutter blade 5 cut a predetermined region of a can drum including a seam part of the can body K with the can body K clamped between the upper plate 8 moved down by the operation of the handle 9 and the lifter plate 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seam cutter device for a can body that is used when cutting a winding tightening portion (seam) of a can body and inspecting the form of the cut surface.

  In order to allow canned products to be stored in containers, it is important that the contents of foods and beverages are filled in the can body, and then covered with a lid to completely seal the inside of the can. The can is sealed by using a double winding machine and winding it together with a sealing compound so as to tie the curl portion of the lid to the flange portion of the can body. That is, by operating the lifter of the double winding machine, the winding chuck, and the first and second winding rolls, the curl portion of the lid is overlapped with the flange portion of the can body, and the body is folded. The airtight state can be secured.

  Incomplete sealing of the canned product will not only prevent the deterioration of the contents and deterioration of the quality by sucking cooling water and air contaminated with microorganisms after overheating sterilization, but also prevent long-term storage of the product. There is a risk of harming the health of consumers. Therefore, it is important to properly manage the proper adjustment of the winding machine, the state of the completed winding and the dimensions. In addition, since the use of an empty can having a deformed can body and a lid results in poor sealing, care must be taken in storing and transporting the empty can.

  In addition, in canned foods, some of the contents such as fish fins and bones may get on the flange of the can body, and it may not be possible to secure a good tightening state. Management also needs to be done appropriately. Further, although the can tightening portion is structurally high in strength, the sealing performance may be impaired when subjected to a large impact or vibration due to rough handling. For this reason, it is necessary to handle carefully the canned food which has been wound when loaded into the sterilizer or transported.

  On the other hand, from the viewpoint of eliminating the sealing failure of the can as described above, it is important to appropriately and accurately manage the state and various dimensions of the winding portion in the empty can or the can of the can. In other words, in order to correctly grasp the state of the tightened portion and contribute to the improvement of the completely sealed can manufacturing technology, the canned portion of the can body is conventionally cut and the cut surface is visually observed or measured. The size of each part of the cut surface is measured with a device, and further, the form and size of each part of the cut surface are diagnosed in detail using an image diagnostic apparatus or the like.

Conventionally, in order to diagnose the cutting surface of such a winding part, a method of cutting the winding part in a direction intersecting with the winding direction of the winding part manually using a yarn saw or a circular saw until now. Is widely adopted (see Non-Patent Document 1, for example).
However, in the seam cutter device for a can body, which is a conventional cutting device for a tightening portion, it is necessary to perform cutting while gazing at a predetermined cutting portion of the tightening portion using a yarn saw or a circular saw. In this case, there is an inconvenience that much time and labor are required in the preparation stage of the cutting work for diagnosis of the cut surface due to individual differences in the cutting work efficiency.

  Therefore, a can cutting device that can quickly perform the cutting operation of the winding portion of the can is provided (see, for example, Patent Document 1). This can cutting device is preferable because it can easily and quickly cut the winding portion of the can.

JP 2008-36764 A

Metal can for canning and double winding (issued by the Japan Canning Association on February 10, 2007), page 72

  However, even in this can cutting device, since the operator presses the can against the cutting blade by hand to cause the can to fluctuate due to the repulsive force, or when the can is lifted from the cutting blade There was also a problem that the cut surface of the can tightening part could not be cut cleanly.

  The present invention solves the above-mentioned conventional problems, and the object of the present invention is to automatically and automatically measure a plurality of measurement points among the tightening portions of the can body that are raised and lowered by manual operation, and By cutting the cut surface cleanly, it is an object to obtain a can seam cutter device that enables anyone to quickly and easily measure the cut site without troublesome preparation work.

  To achieve the above object, a seam cutter device for a can according to the present invention is installed on a base and biased upward, attached to the upper end of the spindle, and supports one end of the can. A lifter plate having slit grooves at a plurality of locations on the outer periphery, a cutter holder attached to a drive shaft of a motor installed on the base, and an outer peripheral portion around the spindle that is detachably held by the cutter holder And an upper plate that is concentrically arranged to face the lifter plate on an upper support supported by a support on the base, and sandwiches the can body between the lifter plate, A power transmission mechanism that allows the upper plate to be moved up and down by operating a handle installed on the base, at least the motor, A safety protection cover that is installed on the base so as to cover the ter holder so that it can be placed on and released from the base, and has an opening that allows the lifter plate to be lifted and lowered on the top. A predetermined region including the can tightening portion of the cutter blade driven by the motor while lowering the can body placed on the lifter plate so as to be sandwiched between them by operating the handle It is characterized by being cut into.

  With this configuration, by placing the can body on the lifter plate, the can body can be placed at the center position of the cutting process, and the cutter blade held by the cutter holder by driving the motor is attached to the lifter plate. Rotate in the cut groove provided. On the other hand, by rotating the handle, the upper plate is pressed against the can body on the lifter plate so as to sandwich it, and the can body is gradually lowered. When the can body is lowered, the can body starts at the lower end of the tightening portion and is automatically cut to a predetermined height of the can body. The cutting surface of the tightening portion by this cutter blade is smooth, and the cutting surface is visually observed as it is, the cutting surface including the cutting portion is bent outward, and the cutting surface is visually observed, or The configuration of the cut portion can be measured manually or automatically using a measuring instrument, and it is possible to determine a sealing failure due to escape winding tightening or lap cracking in the winding tightening portion.

  Further, in the can body seam cutter device, the plurality of motors are arranged at equal intervals on a predetermined circumference centered on the spindle, so that the winding portion of the can body extends over a plurality of locations in the circumferential direction. It is possible to cut at the same time, and it is possible to more accurately and clearly observe and measure the state of the cut surface of the winding tightening portion than in the case where there is only one cut portion. Furthermore, by providing two cutter blades to the cutter holder for each motor, the can body portion between the cutting portions of each of the two cutter blades can be bent, and by this bending, the winding portion Observation and measurement of the cut surface can be made faster and easier. In addition, since the motor is equipped with a transmission, the number of rotations of the cutter blade can be arbitrarily set, and the optimum cut surface suitable for the thickness and hardness of the winding portion can be observed and measured. Can do.

  According to the present invention, by automatically cutting a plurality of measurement locations in the can tightening portion that is moved up and down by manual operation into a clean cut surface, the above-mentioned can be performed quickly and easily without troublesome preparation work. Observation or measurement of the cutting site can be performed easily and quickly.

  The present invention has been briefly described above. Further, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.

It is a vertical front view which shows the seam cutter apparatus of the can body by embodiment of this invention. It is a vertical side view of the seam cutter apparatus of the can shown in FIG. It is a top view of the seam cutter apparatus principal part of the can shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a seam cutter device for a can according to an embodiment of the present invention will be described in detail with reference to the drawings.

  1, 2 and 3 show the configuration of a can seam cutter device according to the present embodiment. In the figure, the seam cutter device for a can according to this embodiment includes a base 1, a lifter plate 2, a motor 3, a cutter holder 4, a cutter blade 5, a column 6, an upper support 7, and an upper. A plate 8, a handle 9, and a safety protection cover 10 are provided. Among these, the base 1 includes a lower base 1a assembled in a cubic frame shape using an L-shaped steel material having a predetermined length, and an upper base 1b mounted horizontally on the lower base 1a via a short support 11.

  The lower base 1a is fixed on a concrete or steel base 12 by a fastener such as a bolt. A mounting bracket-integrated slide bearing member 13 that is long in the vertical direction is attached to the center of the top of the lower base 1a by a fastener 14 such as a bolt and a nut. The upper end portion of the slide bearing member 13 is fixed to the center portion of the upper base 1b by welding or the like. A spindle 15 is slidably inserted in the slide bearing member 13 in the up and down direction. A plurality of support bars 17 are suspended and fixed to the lower base 1a by fasteners 17a, and a support plate 18 is horizontally attached to the lower ends of these support bars 17 using the fasteners 18a in a suspended state. An air spring (gas spring) 19 is fixed to the central portion of the support plate 18 so as to penetrate the support plate 18, and a lower end of the spindle 15 is supported on an upper end of a rod 19 a of the air spring 19.

  The lifter plate 2 is attached to the upper end of a spindle 15 that slides in a slide bearing 13, and the upper surface of the lifter plate 2 conforms to a winding tightening portion (seam) of a can body to be cut and stably holds the same. A ring-shaped recess (not shown) is formed. Further, as shown in FIG. 3, a slit groove 20 is provided at a predetermined angular position obtained by dividing the lifter plate 2 into three parts in the circumferential direction from the outer periphery to a predetermined length in the inner diameter direction. Two sets of these slit grooves 20 are provided at each angular position, and a cutter blade 5 described later can be rotatably guided in these slit grooves 20.

  The motors 3 are installed on the upper base 1b at predetermined equidistant positions around the spindle 15 (three places), and the drive shafts 3a of these motors 3 are also equally spaced around the spindle 15. And extending in the horizontal direction at a predetermined distance. A set of two cutter holders 4 is attached to each end of the drive shaft 3a. A cutter blade 5 that rotates vertically around the drive shaft 3a is detachably fixed to the cutter holder 4 by a fastener 5a such as a bolt and a nut. These cutter blades 5 face the lower part of the lifter plate 2 around the spindle 15. In FIGS. 1 and 2, the motor 3 and the cutter holder 4 are provided in one place for easy understanding, but actually, as shown in FIG. 3, the motor 3 and the cutter holder 4 are equally spaced at three places in the circumferential direction. Yes. When the motor 3 is equipped with a transmission, the number of rotations of the cutter blade 5 can be arbitrarily set within a range of, for example, 10 to 3000 rotations per minute, and matches the thickness and hardness of the winding portion. The optimum cut surface can be obtained.

  A plurality of the pillars 6 are vertically established on the upper base 1 b of the base 1, and are fixed by using fasteners 21 such as bolts and nuts, and the upper support base 7 is fastened to the fasteners 22 at the upper ends of the pillars 6. It is fixed horizontally using. A plate elevating device 23 is installed on the upper support 7. An input shaft of the elevating device 23 is connected to an end of a horizontal rotating shaft 26 rotatably supported by a bracket 25 via a transmission 24. Yes. The elevating device 23 has an elevating cylinder 34 in the upper portion, and acts to urge the upper plate 8 downward with a predetermined pressure via the elevating shaft 27 by the lowering action of the elevating cylinder 34. The upper plate 8 is formed in a shape and size that press-contacts the upper end of the can body placed on the lifter plate 2 and stably holds it. The upper plate 8 faces the upper side of the lifter plate 2 and is arranged concentrically therewith.

  The handle 9 is rotatably installed on the front surface of the upper base 1b to form a ring shape, and an end of a long handle shaft 28 fixed to the center of the handle 9 extends to the rear of the upper base 1b. A sprocket 29 is fixed to the end. Although not shown, both ends of the handle shaft 28 are rotatably supported via brackets, thrust bearings or the like (not shown). An endless type chain 31 is stretched between a sprocket 29 and a sprocket 30 fixed to the horizontal rotary shaft 26. Thereby, the rotation of the handle 9 can be transmitted to the horizontal rotation shaft 26 via the sprocket 29, the chain 31 and the sprocket 30. These sprockets 29 and 30 and the chain 31 constitute a rotation transmission mechanism D. Therefore, the upper plate 8 can be lowered at an arbitrary speed and moving amount together with the lifting shaft 27 of the lifting device 23 by rotating the handle 9.

  The safety protection cover 10 can be arbitrarily placed on the upper base 1b so as to cover the motor 3 and the cutter holder 4 from above, and is made of a transparent synthetic resin material as a whole. The safety protection cover 10 is in the form of a rectangular container having an open bottom as a whole, and the motor 3 and the cutter holder 4 covered thereby can be easily seen through from the outside of the safety protection cover. The safety protection cover 10 has a plurality of handles 32 on the top surface of the top, and the safety protection cover 10 can be easily raised and lowered on the upper base 1b by grasping the handles 32 by hand.

  In addition, a through hole 33 that allows the lifter plate 2 supported by the spindle 15 to move up and down is provided at a substantially central portion of the top plate of the safety protection cover 10. In addition, the mounting position on the upper base 1b of the safety protection cover 10 is determined in advance, and a limit switch (not shown) for detecting that the through hole 33 has been displaced from a position allowing the lifter plate 2 to move up and down is provided. It is provided in the vicinity of the safety protection cover 10 on the upper base 1b. This limit switch functions so as to forcibly stop the driving of the motor 3 by the drive control circuit of the motor 3 when the limit switch is turned on. The lower base 1a is provided with an illumination switch S1, a cycle switch S2, and an emergency stop switch S3 that is operated when an emergency occurs when the can body K is cut off.

  The seam cutter device for a can body according to the present embodiment is configured as described above, and a procedure for cutting a winding tightening portion (seam) of the can body using the seam cutter device will be described below. First, the safety protection cover 10 is placed on the upper base 1 b of the base 1. In this case, the safety protection cover 10 is placed in a position where the lifter plate 2 supported by the spindle 15 can freely move up and down without interfering with the inside of the through hole 33. Further, the can body K to be cut is placed on the lifter plate 2. The can body K is placed so that the lower end of the can body K is centered on the upper surface of the lifter plate 2 and held.

  Subsequently, a power switch (not shown) is turned on to start driving the motor 3, and each cutter blade 5 on the cutter holder 4 attached to the drive shaft 3a is rotated at high speed. These cutter blades 5 face the cut groove hole 20 formed in the lifter plate 4 and have not yet entered the cut groove hole 20.

  Next, the lifting / lowering cylinder 26 is operated to urge the lifting / lowering device 23 downward together with the upper plate 8 attached to the lifting / lowering shaft 27, and the upper plate 8 is placed at the upper end of the can body K placed on the lifter plate 2. Press against the part. Accordingly, the can body K is elastically sandwiched between the upper plate 8 and the lifter plate 2 and is stably held. Thereby, the preparation of the cutting operation by the cutter blade 5 to be subsequently performed is completed.

  In such a stable support state of the can body K, the operator slowly rotates the handle 9 manually. The rotation of the handle 9 is caused by a bracket on the upper support 7 via a sprocket 29 attached to the handle shaft 20, a chain 31 hung on the sprocket 29, and another sprocket 30 on which the chain 31 is hung. 25 is transmitted to a horizontal rotation shaft 26 supported by 25. Accordingly, the rotation of the horizontal rotation shaft 26 is transmitted to the lifting device 23 via the transmission 24, and the lifting device 23 lowers the lifting shaft 27. The lowering amount of the lifting shaft 27 corresponds to the rotation amount of the handle.

  As the elevating shaft 27 is lowered, the upper plate 8 gradually pushes the upper part (head) of the can body downward. Therefore, the spindle 15 elastically supported by the gas spring 19 descends while being smoothly guided by the slide bearing 13 against the repulsive force of the gas spring 19. Accordingly, the lifter plate 2 supported by the spindle 15 gradually descends together with the can body K, and is driven by the motor 3 into the plurality of cut groove holes 20 of the lifter plate 2 supporting the can body K. The cutter blade 5 that has been entered enters from below. For this reason, the can body K facing these cut slots 20 is cut from the lower winding tightening portion to the can body portion. The cutting depth (cutting amount) by the cutter blade 5 can be arbitrarily determined by the operator rotating the handle 9 while monitoring the inside of the safety protection cover 10.

  Thus, when the cutting amount of the winding tightening portion and the can body reaches a predetermined amount, the driving of the motor 3 is stopped by turning off the power switch, the operation of the elevating cylinder 26 is stopped, and the handle 9 The lift shaft 27 and the upper plate 8 that have been lowered by the lift device 23 are moved upward. As a result, the pressing force of the upper plate 8 against the can body K is released, the can body K is removed from the lifter plate 2, and the tightening structure of the tightening portion below the can body K is correctly observed using visual observation or measuring means. And can be measured.

  The motors 3 are installed on the upper base 1b at predetermined equidistant positions around the spindle 15 (in three places), and the drive shafts 3a of these motors 3 are also equally spaced around the spindle 15. And extending in the horizontal direction at a predetermined distance. Therefore, each cutter blade 5 attached to each drive shaft 3a via the cutter holder 4 can simultaneously cut three places of the winding portion in the can body K at equal intervals and depths, The cut surface can be observed and measured quickly. In addition, the cutter holder 4 of each motor is configured to hold the two cutter blades 5 apart from each other by a predetermined distance, so that a part of the can body between the cutting portions by these cutter blades 5 can be bent. Observation and measurement of the cut surface of the winding portion can be easily performed.

  As described above, the seam cutter device for a can body according to the present embodiment supports the one end of the can body at the upper end of the spindle urged above the base and has the slit grooves at a plurality of locations on the outer periphery. A plate is provided, a cutter holder is attached to the horizontal drive shaft of the motor on the base, and a cutter blade whose outer peripheral portion faces the periphery of the spindle is detachably held on the cutter holder. An upper plate that sandwiches the can body with the lifter plate is concentrically disposed on the upper support that is supported by the upper plate, and the upper plate can be moved up and down by operating a handle installed on the base. A can body placed on the lifter plate with a safety cover having an opening that allows the lifter plate to be raised and lowered on the table. The cutter blade is sandwiched between the upper plate lowered by the operation of the handle and the cutter blade driven by the motor is cut into a predetermined region of the can body including the winding portion of the can body. .

  Therefore, the smooth cut surface of the tightening portion by the cutter blade can be visually observed as it is, or a part of the can body cut together with the tightening portion is bent outward, etc. Observation can be facilitated, or the configuration of the cut surface can be observed and measured manually using a measuring instrument such as a micrometer or automatically using an image analyzer, etc. The sealing failure of the can body due to tightening or cracking of the lap can be measured quickly and easily without troublesome preparation work.

  The can seam cutter device of the present invention automatically and quickly cuts a plurality of measurement points in the winding portion of the can body that is lifted and lowered by manual operation, so that the above-mentioned can be performed quickly and easily without troublesome preparation work. It has an effect that the measurement of the cutting site can be carried out, and is useful for a seam cutter device or the like used when cutting a winding portion of a can body and inspecting its cross-sectional shape.

DESCRIPTION OF SYMBOLS 1 Base 2 Lifter plate 3 Motor 4 Cutter holder 5 Cutter blade 6 Strut 7 Upper support stand 8 Upper plate 9 Handle 10 Safety protection cover 11 Short support 12 Base 13 Slide bearing member 14, 21, 22 Fastener 15 Spindle 17 Support rod 18 Support plate 19 Air spring (gas spring)
DESCRIPTION OF SYMBOLS 20 Notch slot 23 Elevator 24 Transmission 25 Horizontal rotating shaft 26 Elevating cylinder 27 Elevating axis 28 Handle shaft 29, 30 Sprocket 31 Chain 32 Handle 33 Through-hole 34 Elevating cylinder K Can body

Claims (4)

A spindle installed on the base and biased upward;
A lifter plate attached to the upper end of the spindle, supporting one end of the can body and having slit grooves at a plurality of locations on the outer periphery;
A cutter holder attached to a drive shaft of a motor installed on the base;
A cutter blade that is detachably held by the cutter holder and has an outer peripheral portion facing the periphery of the spindle;
An upper plate that is concentrically disposed on an upper support that is supported on the base via a support so as to face the lifter plate, and that sandwiches the can body between the lifter plate,
A power transmission mechanism capable of moving the upper plate up and down by operating a handle installed on the base;
A safety protection cover that is installed on the base so as to cover at least the motor and the cutter holder and can be released from the mounting, and has an opening that allows the lifter plate to move up and down on the top,
With
The cutter blade driven by the motor while the can body placed on the lifter plate so as to be sandwiched between the upper plate and the handle plate is lowered by the operation of the handle, the winding portion of the can body A can body seam cutter device, characterized by being cut into a predetermined region including   2. The can seam cutter device according to claim 1, wherein a plurality of motors are arranged at equal intervals on a predetermined circumference centered on a spindle.   2. The seam cutter device for a can according to claim 1, wherein two cutter blades are provided to a cutter holder for each motor.   The can motor according to claim 1, wherein the motor is equipped with a transmission.

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