JP6026754B2 - Openability test equipment - Google Patents

Description

  The present invention relates to an openability test apparatus used for various package / container openability tests such as heat seal soft packaging bags, heat seal semi-rigid containers, roof-type paper pack containers, screw lid containers, and pull tab containers.

  In recent years, there has been a voice from elderly people with reduced grip strength that it is difficult to open packaging / containers used for food, household goods, pharmaceuticals, and the like. In response to these opinions, openability tests have been conducted to measure the openability of various packaging and containers such as heat-seal soft packaging bags, heat-seal semi-rigid containers, roof-type paper pack containers, screw lid containers, and pull tab containers. It has been broken. Some of these test methods are defined in, for example, JIS S 0022, and the ease of opening is evaluated for each type of packaging / container.

Japanese Industrial Standards JIS S 0022

  However, in these openability tests, it is difficult to keep the direction of the opening operation (tensile direction) and the speed of the opening operation (tensile speed) constant during the test because the tester generally performs the test manually. There was a problem. For example, in the case of heat-sealed flexible packaging bags often used for retort foods and seasonings, the bag is torn at a speed of 500 mm / min in a perpendicular direction along the opening line, and the maximum tensile force at that time is measured. However, if the tester is not accustomed, the pulling direction and the pulling speed fluctuate in the middle, so that the test results are likely to vary.

  For example, in the case of a heat-seal semi-rigid container often used for cup noodles etc., the container is fixed in a state where the container is inclined 45 degrees so that the opening part is on the lower side, and the tongue part of the seal lid is 500 mm. At the speed of / min, it pulls right above and opens, and the maximum tensile force at that time is measured. Even in this case, it is still difficult to keep the tension direction and the tension speed constant, and the test environment is likely to deteriorate because the ingredients in the container may spill and scatter to the surroundings during the test. There was also a problem.

  In addition, in the case of full open tab containers often used for canned foods, steion tab containers often used for canned beverages, lid containers with tabs often used for bottled beverages, etc., the angle of the tab with high rigidity is under test. Therefore, there is a problem that it is particularly difficult to keep the tensile direction constant, and the variation in test results tends to be large.

  In view of such a situation, the present invention intends to provide an unsealing test apparatus capable of simply and highly accurately performing unsealing tests of various packages and containers.

(1) The present invention is capable of moving in a first direction within a predetermined plane, a test body holding member that holds a test body having an operation part for opening, an operation part holding member that holds the operation part. A first moving member arranged to pull the operation unit holding member, and a second movement arranged to be movable in a second direction in a plane substantially parallel to the predetermined plane and to which the specimen holding member is attached A member, a first moving mechanism for moving the first moving member and outputting rotational power, and a second moving mechanism for moving the second moving member by the rotational power output from the first moving mechanism; the a transmission mechanism a rotating power output from the first moving mechanism for transmitting to said second moving mechanism, and a load measuring device for measuring a load applied to the operation portion support member, the transmission mechanism, the Output from first moving mechanism A transmission input shaft rotational power is input that is characterized by and a transmission output shaft for outputting rotational power to the second moving mechanism, a openability test device.

  (2) In the above (1), the present invention further includes a swinging member that swings the first moving member so as to change the first direction within the predetermined plane. It is an openability test apparatus of description.

(3) The present invention is also the unsealing test apparatus according to the above (2), wherein the transmission input shaft is arranged coaxially with the swing center line of the swing member.

  (4) The present invention is also configured such that the test body holding member is configured to hold the test body in a state where an opening point of the test body substantially coincides with a swing center line of the swing member. The openability test apparatus according to (2) or (3), characterized in that it is characterized in that

  (5) The present invention is also configured such that the test body holding member holds the test body in a state in which a line or a surface opened when the test body is opened is substantially parallel to the second direction. The openability testing device according to any one of (1) to (4) above, wherein

(6) The present invention is also characterized in that the second direction is a substantially horizontal direction.
The openability test apparatus according to any one of (1) to (5) above.

  (7) The present invention further includes a second swing member that swings the second moving member so as to change the second direction within a plane substantially parallel to the predetermined plane. The openability testing device according to any one of (1) to (5) above.

  (8) In the present invention, the first moving mechanism also converts a driving device that outputs rotational power and rotational power output from the driving device into movement of the first moving member in the first direction. The openability test apparatus according to any one of (1) to (7) above, further comprising: a conversion device; and an output shaft that outputs the rotational power output from the drive device to the transmission mechanism. It is.

  (9) The present invention is also characterized in that the first movement mechanism includes a conversion device that converts the movement of the first movement member in the first direction into rotation power and outputs the rotation power. ) To (7).

  (10) The present invention is also the openability test apparatus according to any one of the above (1) to (9), wherein the load measuring device is disposed on the first moving member.

  (11) In the present invention, the operation unit holding member is connected to the load measuring device via a string-like body, and the first moving member is configured to measure the string-like body with the operation unit holding member and the load. The openability testing device according to any one of (1) to (9), wherein the operation portion holding member is pulled by pressing between the containers.

  According to the openability test apparatus according to the present invention, it is possible to achieve an excellent effect that it is possible to easily and accurately perform an openability test of various packages and containers.

(A) And (b) It is the schematic of the openability test apparatus which concerns on embodiment of this invention. It is the schematic which showed operation | movement of the unsealability test apparatus. It is the schematic front view which showed the mode of the openability test of the heat-seal semi-rigid container by the (a)-(c) openability test apparatus. (A)-(c) It is the schematic front view which showed the mode of the openability test of the full open tab container. It is the schematic front view which showed the mode of the openability test of (a) and (b) roof type | mold paper pack containers. (C) is the schematic which showed the mode of the openability test of the screw-lid container. (A) It is the schematic right view which showed the mode of the openability test of the heat seal soft packaging bag. (B) It is the schematic of a heat seal soft packaging bag. (C) It is the schematic right view which showed an example at the time of supporting a base so that rotation was possible. (A) And (b) It is the schematic which showed an example at the time of providing the 2nd rocking | fluctuation member which rocks | fluctuates while supporting a 2nd moving member. (A) It is the schematic which showed the procedure of the openability test of the lid container with a tab. (B) And (c) It is the schematic front view which showed the mode of the openability test of the lid container with a tab. (A) It is the schematic right view which showed an example at the time of making a movement of a 1st moving member by a ball screw transmission mechanism. (B) It is the schematic right view which showed an example at the time of making it cancel the moment added to a 1st moving member.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, the front view left and right direction is the X direction, the front view front and rear direction is the Y direction, and the vertical direction is the Z direction. In the drawings, teeth such as gears and racks are omitted.

  First, the structure of the openability test apparatus 1 according to the embodiment of the present invention will be described. FIGS. 1A and 1B are schematic diagrams of an unsealing test apparatus 1 according to the present embodiment, and FIG. 2 is a schematic diagram illustrating an operation of the unsealing test apparatus 1. 1 (a) and 2 are front views of the unsealing test apparatus 1, and FIG. 1 (b) is a right side view of the unsealing test apparatus 1. FIG.

  As shown in these drawings, the unsealing test apparatus 1 includes a base 10, a swinging member 20 that is swingably disposed on the base 10, and a swingable member 20 that is linearly movable. The first moving member 30, the first moving mechanism 40 that linearly moves the first moving member 30, the second moving member 50 that is arranged on the base 10 so as to be linearly movable, and the second moving member 50 are linearly reciprocated. A second moving mechanism 60 to be moved and a transmission mechanism 70 for transmitting the rotational power output from the first moving mechanism 40 to the second moving mechanism 60 are provided.

  The unsealing test apparatus 1 is also disposed on the second moving member 50, a test body holding member 80 that holds the test body 2, and a load that is disposed on the first moving member 30 so as to face the test body holding member 80. A measuring device 90, an operation portion holding member 100 connected to the load measuring device 90 and holding the operation portion 2 a of the test body 2, and a control device (not shown) for controlling the first moving mechanism 40 and the load measuring device 90. It is equipped with.

  The unsealing test apparatus 1 according to the present embodiment uses the unsealing operation section 2a provided on various test bodies 2 (that is, a portion that is manipulated by picking with a finger or the like when unsealing). The force required for opening is measured. Here, the case where the test body 2 is a heat seal semi-rigid container is illustrated. In this case, the operation part 2a is a heat-sealed seal lid, and is bonded to the bonding surface 2c which is the upper edge of the cup-shaped container body 2b. 1 and 2 show a state in which the specimen 2 is opened approximately half.

  The base 10 supports each member such as the swing member 20 and the second moving member 50. The base 10 includes a first support column 12 and a second support column 14 erected on the upper surface 10a. The first support column 12 supports the swinging member 20 in a swingable manner, and the second support column 14 supports the transmission mechanism 70. In addition, the shape of the base 10 is not specifically limited, What is necessary is just to be able to arrange | position and support each member suitably. Moreover, you may make it provide the cover which covers the structure of the base 10 upper part as needed.

  The swing member 20 supports and swings the first moving member 30. The swing member 20 is supported by the first support column 12 via a swing shaft 22 disposed in the front-rear direction in the front view, and swings in the left-right direction with respect to the base 10 in the front view. It is like that. That is, the swing member 20 is configured to swing in the XZ plane with the swing center line C set in the Y direction.

  The swing member 20 is configured to be swingable within a range of 90 ° to the left and right as viewed from the front in the upright state (see FIG. 2). The swing member 20 is configured to be fixed at an arbitrary swing position (tilted at an arbitrary angle) by a known method (not shown) such as a set screw. A dedicated motor, a brake mechanism, or the like may be provided, and the swing member 20 may be automatically swung and fixed via a control device.

  The first moving member 30 supports the load measuring device 90 and pulls the operation portion holding member 100 by its own movement. That is, in this embodiment, it is comprised so that the operation part 2a may be pulled by the movement of the 1st moving member 30, and the moving direction of the 1st moving member 30 is a pulling direction of the operating part 2a.

  The first moving member 30 is arranged on the oscillating member 20 via a guide rail 32 arranged along the longitudinal direction of the oscillating member 20 and a slider 34 that slides along the guide rail 32. Therefore, in the present embodiment, the moving direction of the first moving member 30, that is, the pulling direction of the operation portion 2a can be changed in the XZ plane by swinging the swinging member 20. Further, in the present embodiment, by setting the moving direction of the first moving member 30 to intersect the swinging center line C, the first moving member 30 can always be moved regardless of the swinging position of the swinging member 20. The oscillating center line C is configured to reciprocate linearly in the radial direction.

  Further, the first moving member 30 is configured to protrude forward from the swinging member 20, and the load measuring device 90 arranged at the tip is held by the test body holding member 80. 2 to face. Further, the first moving member 30 is provided with an adjusting mechanism 36 that can adjust the position of the load measuring device 90 in the Y direction, so that the load measuring device 90 can be connected to the test body 2 regardless of the size of the test body 2. It is possible to make it face to face.

  The first moving mechanism 40 moves the first moving member 30 in a straight line. The first moving mechanism 40 is controlled by a control device (not shown), and can move the first moving member 30 at an arbitrary speed and stop it at an arbitrary position.

  The first moving mechanism connects the stepping motor 41 disposed on the base 10, the driven shaft 42 rotatably supported by the first support column 12, the drive shaft 41 a of the stepping motor 41, and one end of the driven shaft 42. A reduction gear 43 comprising a gear train, a first pinion 44 provided at the other end of the driven shaft 42, and fixed to the first moving member 30 along the moving direction of the first moving member 30, A first rack 45 that meshes.

  That is, the first moving mechanism 40 is configured to linearly move the first moving member 30 by rotationally driving the first pinion 44 by the stepping motor 41 and thereby moving the first rack 45 linearly. . Therefore, the first pinion 44 and the first rack 45 function as a conversion device that converts the rotational power output from the stepping motor 41 into the linear movement of the first moving member 30. The driven shaft 42 is connected to the transmission mechanism 70 and is also used as an output shaft that outputs the rotational power output from the stepping motor 41 to the transmission mechanism 70.

  Further, in the present embodiment, the driven shaft 42 passes through the inside of the swing shaft 22, and the driven shaft 22 is arranged coaxially with the swing center line C, so that it does not depend on the swing position of the swing member 20. The first moving member 30 can be moved by the stepping motor 41 disposed on the base 10.

  Instead of the first pinion 44 and the first rack 45, other known mechanisms such as a sprocket and a chain may be adopted. Further, the speed reducer 43 may be based on belt transmission or chain transmission. Further, the driven shaft 42 and the first pinion 44 may be connected via a gear train, a belt transmission mechanism, or the like.

  The second moving member 50 supports the specimen holding member 80 and moves the specimen holding member 80 by its own movement. The second moving member 50 is arranged on the base 10 via a guide rail 52 arranged along the left and right substantially horizontal direction (X direction) and a slider 54 that slides along the guide rail 52. Thereby, the 2nd moving member 50 can be linearly reciprocated in the substantially horizontal direction (X direction) in a XZ plane.

  Therefore, in this embodiment, the moving direction (first direction) of the first moving member 30 and the moving direction (second direction) of the second moving member 50 are both in the XZ plane (in a plane parallel to each other). ), And when the swinging member 20 is swung ± 90 ° from the upright state, the moving direction of the first moving member 30 and the moving direction of the second moving member 50 substantially coincide with each other in the X direction (substantially). (See FIG. 2).

  The second moving mechanism 60 moves the second moving member 50 back and forth linearly. The second moving mechanism 60 includes a second pinion 62 connected to the transmission mechanism 70 and a second rack 64 fixed to the second moving member 50 along the moving direction of the second moving member 50 and meshing with the second pinion 62. And. That is, the second moving mechanism 60 is configured to move the second moving member 50 linearly by being driven by the transmission mechanism 70 and the second pinion 62 rotating, thereby moving the second rack 64 linearly. ing.

  The transmission mechanism 70 transmits the rotational power output from the first moving mechanism 40 to the second moving mechanism 60. By providing the transmission mechanism 70, it is possible to drive both the first moving member 30 and the second moving member 50 by one stepping motor 41, and the first moving member without performing complicated synchronous control. It becomes possible to synchronize the movement of 30 and the 2nd moving member 50. FIG.

  The transmission mechanism 70 includes a transmission shaft 72 that is rotatably supported by the second support column 14. One end of the transmission shaft 72 is connected to the driven shaft 42 of the first moving mechanism 40, and the other end is a second movement. It is connected to the second pinion 62 of the mechanism 60. That is, the transmission mechanism 70 is configured to transmit the rotational power output from the driven shaft 42 of the first moving mechanism 40 to the second pinion 62 of the second moving mechanism 60 as it is by the transmission shaft 72. In other words, the transmission shaft 72 also serves as an input shaft to which the rotational power output from the first moving mechanism 40 is input and an output shaft that outputs the rotational power to the second moving mechanism 60.

  In the present embodiment, by arranging the transmission shaft 72 coaxially with the swing center line C, the rotational power output from the first moving mechanism 40 is moved to the second position regardless of the swing position of the swing member 20. It is possible to transmit to the mechanism 60. Furthermore, in this embodiment, the driven shaft 42 and the transmission shaft 72, both of which are arranged coaxially with the oscillation center line C, are configured from a single continuous shaft, thereby realizing a simpler configuration. Yes.

  In the present embodiment, the moving speed of the second moving member 50 with respect to the moving speed of the first moving member 30 is changed by exchanging the first pinion 44 and the first rack 45 and the second pinion 62 and the second rack 64. The ratio is adjusted. That is, for example, if the first pinion 44 and the second pinion 62 have the same number of teeth and the same pitch, the moving speed of the first moving member 30 and the moving speed of the second moving member 50 can be set to be substantially the same. If the pitches of the first pinion 44 and the second pinion 62 are the same and the gear ratio is 2: 1, the ratio of the moving speed of the first moving member 30 and the moving speed of the second moving member 50 is approximately 2. : 1 can be set.

  It should be noted that the ratio of the moving speed of the first moving member 30 and the moving speed of the second moving member 50 may be adjusted by providing a speed reducer, speed increaser or transmission having a known structure in the transmission mechanism 70. Good. In this case, the input shaft to which the rotational power output from the first moving mechanism 40 is input is arranged coaxially with the swing center line C, so that the rotational power is transmitted regardless of the swing position of the swing member 20. Is possible.

  Further, instead of the second pinion 62 and the second rack 64, other known mechanisms such as a sprocket and a chain may be employed. Further, the transmission shaft 72 and the second pinion 62 may be connected via a gear train, a belt transmission mechanism, or the like.

  The test body holding member 80 holds the test body 2 so that portions other than the operation unit 2a do not move in the tensile direction during the test. The test body holding member 80 is configured to hold the test body 2 by a known appropriate method in accordance with the shape and material of the test body, such as clamping, engagement, fastening, adhesion, or adsorption. The second moving member 50 is detachably attached to the second moving member 50 so that the replacement or the attachment position can be appropriately changed according to the type, shape, size, and the like.

  The test body holding member 80 is configured to hold the test body 2 in a state where the change in the tensile direction when the test body 2 is opened is substantially canceled by the movement of the second moving member 50. Specifically, the test body holding member 80 has a line or surface on which the operation unit 2a is peeled, cut or separated from the test body 2 when opened, in other words, a line or surface opened when the test body 2 is opened, The test body 2 is configured to be held in a state substantially parallel to the moving direction of the second moving member 50.

  That is, in the present embodiment, the operation unit 2a moves the test body 2 in the direction opposite to the movement of the opening point P that is the boundary between the part already peeled, cut or separated from the test body 2 and the other part. The unsealing point P is held at a substantially constant position with respect to the base 10. As a result, the direction of the tensile force acting on the opening point P can be kept substantially constant.

  In this example, since the test body 2 is a heat-seal semi-rigid container, the bonding surface 2c (that is, the surface from which the operation unit 2a is peeled when opened) is substantially parallel to the moving direction of the second moving member 50. In addition, the specimen holding member 80 is configured.

  In the present embodiment, the test body holding member 80 is also configured to hold the test body 2 in a state where the opening point P substantially coincides with the swing center line C. Thereby, since the relative position of the unsealing point P with respect to the swing member 20 can be held at a substantially constant position regardless of the swing position, it is possible to easily change the tension direction.

  Furthermore, in the present embodiment, the movement direction of the second moving member 50 is set to the substantially horizontal direction (X direction) so that the line or surface that is opened when the specimen 2 is opened is maintained in the substantially horizontal direction. The contents of the specimen 2 are prevented from spilling out during the test. Thereby, even when a commercially available package / container is used as it is as the test body 2, it is possible to prevent the test environment from being contaminated.

  The load measuring device 90 measures a load (tensile force) required when the test body 2 is opened, and in this embodiment, the load measuring device 90 is constituted by a load cell. The load measuring device 90 is arranged at the tip of the first moving member 30 in accordance with the position of the test body 2 held by the test body holding member 80. The load measuring device 90 is electrically connected to a control device (not shown), and the output is transmitted to the control device. The method for detecting the force in the load measuring device 90 is not particularly limited, and any method such as a strain gauge method, a piezoelectric method, a capacitance method, an electromagnetic method, or a tuning fork method may be used.

  The operation unit holding member 100 holds at least a part of the operation unit 2 a of the test body 2. The operation unit holding member 100 is connected to the force application point 92 of the load measuring device 90 via the connection member 102. In the present embodiment, the operation unit holding member 100 is configured so that the end of the operation unit 2a is sandwiched between two members, but the structure of the operation unit holding member 100 is limited to this. Instead, other structures such as a structure in which a hook, a string, or the like is locked to a hole provided in the operation unit 2a or a newly processed hole, or a structure that is fixed by a screw, an adhesive tape, or the like may be used.

  The connecting member 102 adjusts the distance between the load measuring device 90 and the operation unit holding member 100, and a member having an appropriate length is used according to the type of the test body 2 and the like. The connecting member 102 may be a rod-like member having moderate rigidity, or may be a flexible member (string-like body) such as a wire or a string. Further, the operation unit holding member 100 may be used as the connection member 102, such as directly connecting a string or the like locked to the operation unit 2a to the load measuring device 90.

  A control device (not shown) controls the operation of the first moving mechanism 40 and the like, and converts the output from the load measuring device 90 into a load value for output or storage. A general PC can be used as the control device. In addition, a dedicated control device including a CPU and storage means such as a ROM, a RAM, and a hard disk may be incorporated in the unsealing test apparatus 1 together with an operation panel for operation and a display for displaying various information. Further, for example, a control device for controlling the first moving mechanism 40 may be incorporated in the unsealing test device 1 so that the output from the load measuring device 90 is transmitted to a processing device such as an external PC.

  Next, the procedure of an openability test using the openability test apparatus 1 will be described.

  FIGS. 3A to 3C are schematic front views showing the state of the unsealing test of the heat-seal semi-rigid container by the unsealing property testing apparatus 1. In the unsealing test, first, the moving speed of the first moving member 30, that is, the pulling speed of the operation portion 2a is set. Here, for example, the moving speed of the first moving member 30 is set to 500 mm / min defined in JIS S 0022. The moving speed of the first moving member 30 may be kept constant during the test or may be changed.

  Next, the speed ratio between the first moving member 30 and the second moving member 50 is set by adjusting the combination of the number of teeth of the first pinion 44 and the second pinion 62, for example. Here, since the test body 2 is a heat-seal semi-rigid container that peels and opens the operation portion 2a, the speed ratio between the first moving member 30 and the second moving member 50 is set to 1: 1.

  Next, the test body 2 is set on the test body holding member 80 as shown in FIG. Next, the swinging member 20 is swung to set the pulling direction to a predetermined direction. Here, for example, when the angle formed by the tensile direction with respect to the bonding surface 2c of the operation portion 2a is θ, θ = 45 ° is set in accordance with JIS S 0022. Note that the setting of the pulling direction may be performed manually or automatically by a control device.

  Next, the first moving member 30 is moved closer to the test body 2 and the length of the connection member 102 is adjusted, so that the end of the operation unit 2 a is held by the operation unit holding member 100. Next, as shown in FIGS. 5B and 5C, the first moving mechanism 40 moves the first moving member 30 in a direction away from the swing center line C by the first moving mechanism 40. At this time, the control device controls the first moving mechanism 40 so as to move the first moving member 30 at a preset speed (for example, 500 mm / min). Then, the tensile force applied to the operation unit holding member 100 during the movement of the first moving member 30 is measured by the load measuring device 90.

  As the first moving member 30 moves, the operation section 2a is gradually peeled off from the test body 2 (container body 2b), and the test body 2 is thereby opened. Therefore, the load measuring device 90 continuously measures the tensile force necessary to peel off the operation portion 2a in order to open the test body 2.

  At this time, the opening point P moves along the adhesion surface 2c by the same distance as the peeling amount, that is, the same distance as the moving distance of the first moving member 30, but the transmission mechanism 70 and the second moving mechanism 60 Since the test body 2 moves in the direction opposite to the unsealing point P at substantially the same speed as the first moving member 30, the movement of the peeling point P is substantially canceled. Therefore, during the test, the peeling point P is held at a position that substantially coincides with the swing center line C, whereby the tensile direction is kept constant.

  The measurement result of the load measuring device 90 is stored in the control device as time-series data, and is output to a display, an external processing device or the like if necessary. With the above procedure, one openability test is completed.

  In this embodiment, since the test body 2 is moved so as to cancel the change in the tensile direction by the transmission mechanism 70 and the second moving mechanism 60 during the test, the tensile direction is made substantially constant without requiring complicated synchronous control. It is possible to keep the openability test easily and with high accuracy. In addition, since the moving direction of the first moving member 30, that is, the pulling direction can be set to an arbitrary direction by the swinging member 20, an unsealing test is performed in various modes, and a multifaceted viewpoint that has not been conventionally obtained. From the above, it is possible to evaluate the openability.

  In this embodiment, the swinging center line C and the unsealing point P are made to substantially coincide with each other, so that the tension direction can be easily changed. Furthermore, if the swinging member 20 is swung together with the movement of the first moving member 30 during the test, for example, it is possible to change the pulling direction in accordance with the movement of the hand during actual opening. Further, the openability of various packaging / containers can be more strictly evaluated.

  Moreover, in this embodiment, since the moving direction of the 2nd moving member 50 is made into the substantially horizontal direction (X direction), the content of the test body 2 does not spill during a test. Thereby, since it becomes possible to make the test body 2 with various packaging and a container with an actual use condition, more realistic evaluation of opening property can be performed.

  It should be noted that various packaging / containers other than the heat-seal semi-rigid container can be subjected to an openability test by the same procedure as described above. 4 (a) to 4 (c) are schematic front views showing a state of an openability test of a full open tab container. When the test body 2 is a full open tab container, the operation portion 2a is an upper surface portion (lid portion) cut along a cutting line when opened, and a tab 2a1 for hooking a finger is provided on the operation portion 2a.

  In the openability test of the full open tab container, first, the tab 2a1 is caused to cut a part of the cutting line, and the tensile force required to generate the separation starting point portion is measured. In this case, when complying with JIS S 0022, as shown in FIG. 5A, the swinging member 20 is in an upright state, and the operation portion holding member 100 configured in a hook shape, for example, is provided on the tab 2a1. Lock in the hole. And what is necessary is just to move the 1st moving member 30 and to measure a tensile force as FIG.5 (b) shows. At this time, the tensile direction can be kept substantially constant by moving the second moving member 50 at an appropriate speed ratio with respect to the movement of the first moving member 30. Note that the swing member 20 may be in a state other than the upright state, and measurement may be performed in different tensile directions.

  In the openability test of the full open tab container, next, the tensile force required to separate the operation portion 2a from the test body 2 (container body 2b) is measured. In this case, first, as shown in FIG. 5C, the test body 2 is set in the left and right direction in the front view from the time of the previous cause, and the moving direction of the second moving member 50 is the opening point P. Make the direction opposite to the moving direction. Then, after appropriately setting an angle θ formed between the cutting line of the test body 2 and the tensile direction (θ = 90 ° according to JIS S 0022), the first moving member 30 is moved to measure the tensile force. . Also at this time, if the speed ratio between the first moving member 30 and the second moving member 50 is set appropriately, the tensile direction can be kept substantially constant.

  The orientation of the test body 2 may be changed manually, or may be automatically performed by configuring the test body holding member 80 to be rotatable about the Z direction. Needless to say, an openability test can also be performed on the steion tub container by the method shown in FIGS.

  FIGS. 5A and 5B are schematic front views showing the state of the openability test of the roof type paper pack container. When the test body 2 is a roof-type paper pack container, the operation part 2a is the opening side of the part that is folded and adhered to the roof mold. In the openability test of the roof type paper pack container, first, the tensile force required to peel off the upper adhesive portion 2d and open the opening side is measured. In this case, as shown in FIG. 6A, the swinging member 20 is swung 90 degrees clockwise in front view, and the pulling direction is set to a substantially horizontal direction (X direction). Then, one roof surface in the operation portion 2a is locked and held by, for example, a hook-shaped auxiliary holding member 82 provided on the specimen holding member 80, and a hook-shaped operation is performed in a hole provided on the other roof surface. The part holding member 100 is locked, and the first moving member 30 is moved in this state to measure the tensile force.

  In this example, since the second moving member 50 moves in the opposite direction to the first moving member 30, the tensile direction changes as the adhesive portion 2d on the top of the test body 2 peels off. At least the openability test of the roof type paper pack container specified in JIS S 0022 can be performed. In addition, according to the regulation of JIS S 0022, the hole for locking the operation unit holding member 100 is provided at a position 7 mm from the top and end of the roof surface, Become.

  In the openability test of the roof type paper pack container, next, the tensile force required to peel off the inner adhesive portion 2e exposed by opening the opening side to form a spout is measured. In this case, first, as shown in FIG. 5B, the direction of the test body 2 is changed so that the inner adhesive portion 2e faces the load measuring device 90, and the central portion of the inner adhesive portion 2e is below the central portion. The operation portion holding member 100 is locked in the provided hole. Then, the first moving member 30 is moved in this state, and the tensile force is measured.

  In this measurement, since the spout is formed in a substantially pantograph shape as the inner adhesive portion peels, the tensile direction is kept substantially constant. According to JIS S 0022, the operating portion holding member 100 is locked in a hole with a diameter of 2 mm provided 5 to 10 mm below the apex of the triangle formed by opening the opening side, and a tensile force of 200 mm / min. What is necessary is just to measure the tension | tensile_strength until it opens a spout 10 mm at speed.

  FIG.5 (c) is the schematic which showed the mode of the openability test of the screw-lid container. When the test body 2 is a screw lid container, the operation part 2a becomes a screw lid. In the openability test of the screw cap container, the torque required to rotate the screw cap is measured. In this case, the operation unit holding means 100 is configured to convert the tensile force generated by the first moving member 30 into torque that rotates the screw lid, for example, by a rack and pinion mechanism. Then, as shown in FIG. 5C, the tensile force is measured by moving the first moving member 30 in a state where the swinging member 20 is swung 90 ° clockwise in front view, and the measured tensile force is measured. If the force is converted into torque, the torque required to rotate the screw cap can be obtained.

  FIG. 6A is a schematic right side view showing a state of the unsealing test of the heat-seal soft packaging bag, and FIG. 6B is a schematic diagram of the heat-seal soft packaging bag. When the test body 2 is a heat-sealing soft packaging bag, as shown in FIG. 5B, the operation portion 2a is a portion that is cut along the cutting line 2f when opened. The operation unit 2a may be completely separated from the bag body 2b or may be partially separated.

  As shown in FIG. 6 (a), the openability test of the heat-sealing soft packaging bag is performed by changing the posture of the openability test apparatus 1 from the state of FIG. It is performed in a state of being rotated by 90 ° about the (X direction). At this time, as shown in FIG. 6A, if the base 10 is fixed to, for example, the auxiliary base 16 or the like, the unsealing test apparatus 1 can be stably supported.

  By changing the attitude of the unsealing test apparatus 1 in this way, the unsealing point P is substantially the same as the oscillation center line C by the movement of the second moving member 50 while holding the test body 2 in a state where the contents are not spilled. It becomes possible to hold in the matching position. That is, the openability test of the heat-sealing soft packaging bag can be performed easily and with high accuracy, and the test environment can be prevented from being contaminated by the contents.

  When performing an openability test of the heat-sealing flexible packaging bag according to JIS S 0022, the moving direction of the first moving member 30 is set to a direction orthogonal to the cutting line 2f, and the moving speed 30 is set to 500 mm / min. Then, the tensile force is measured until the operation unit 2a is separated by 20 mm or until the operation unit 2a is completely separated.

  In addition, by making the opening test apparatus 1 in the posture shown in FIG. 6 (a), it is possible to keep the tensile direction substantially constant in the openability test of the roof type paper pack container shown in FIG. 5 (a). It becomes. FIG. 6C is a schematic right side view showing an example in which the base 10 is rotatably supported. In this way, the base 10 may be supported by the support member 18 so as to be rotatable about the X direction so that the posture change can be facilitated. In this case, it is possible to perform the openability test in more various modes by appropriately setting the rotation position of the base 10 and performing the openability test.

  Next, other forms of the unsealing test apparatus 1 will be described. In the following description, description of parts common to the above example is omitted, and only different parts are described.

  FIGS. 7A and 7B are schematic views showing an example in which a second swinging member 24 that supports and swings the second moving member 50 is provided. In addition, the figure (a) is a schematic front view, The figure (b) is a schematic right view.

  As shown in FIGS. 2A and 2B, the second swing member 24 has a base end portion of the second support column 14 via a swing shaft 26 disposed in the front-rear direction (Y direction) when viewed from the front. The base 10 is oscillated in the left-right direction when viewed from the front. The second swing member 24 is arranged so that the swing center substantially coincides with the swing center line C of the swing member 20. That is, in this example, both the swing member 20 and the second swing member 24 are configured to swing around the center line C in the XZ plane (in a plane parallel to each other).

  The second swing member 24 is configured to be swingable within a range of 90 ° to the left and right in the front view from the upright state. The second swing member 24 is configured to be fixed at an arbitrary swing position (tilted at an arbitrary angle) by a known method (not shown) such as a set screw. As with the rocking member 20, a dedicated motor, a brake mechanism, or the like may be provided, and the second rocking member 24 may be rocked and fixed automatically via a control device.

  The second moving member 50 is disposed on the second swing member 24 via the guide rail 52 and the slider 54. Therefore, in this example, the moving direction of the second moving member 50 can be changed in the XZ plane by swinging the second swinging member 24. In addition, since the swing center of the second swing member 24 is substantially coincident with the swing center line C, the transmission mechanism 70 does not depend on the swing position of the second swing member 24. Can be transmitted to the second moving mechanism 60. That is, since the output shaft (transmission shaft 72) that outputs rotational power to the second moving mechanism 60 is arranged coaxially with the swing center line (swing center line C) of the second swing member 24, 2 Rotational power can be transmitted regardless of the swing position of the swing member 24.

  Thus, by providing the 2nd rocking | swiveling member 24, since it becomes possible to change the moving direction of the 2nd moving member 50 to arbitrary directions, the openability test of a more various aspect can be performed. . FIG. 8 (a) is a schematic view showing the procedure of an openability test of a lid container with a tab, and FIGS. 8 (b) and (c) are schematic views showing the state of the openability test of the lid container with a tab. It is a front view. When the test body 2 is a lid with a tab, as shown in FIG. 5A, the operation portion 2a is a lid with a tab, and a tab 2a1 for hooking a finger is extended toward the container body 2b. ing.

  In the openability test of the lidded container with a tab defined in JIS S 0022, as shown in FIG. 5A, first, the tab 2a1 is raised until it is in a horizontal state. Next, the tab 2a1 is pulled in the horizontal direction from this state, and the weakening line 2g provided on the side surface in the vicinity of the base end portion of the tab 2a1 is cut. Then, the tab 2a1 is raised so that θ1 = 135 ° in the figure, and the tab 2a1 is pulled in that direction to be opened.

  As shown in FIG. 5B, the swinging member 20 is swung 90 ° counterclockwise in front view, and the second swinging member 24 is swung counterclockwise 90 ° in front view. Thus, it is possible to move the test body 2 in the substantially vertical direction (Z direction) while pulling the tab 2a1 in the substantially horizontal direction (X direction). Therefore, by appropriately setting the speed ratio of the first moving member 30 and the second moving member 50, in the measurement of the tensile force required to cut the weakening line 2g by pulling in the horizontal direction after raising the tab 2a1. The tension direction can be kept substantially constant. That is, these measurements can be performed with higher accuracy.

  Next, as shown in FIG. 6C, the swing member 20 is set to θ1 = 135 ° and the second swing member 24 is brought into an upright state, so that the second moving member of the specimen holding member 80 is placed. As in the example shown in FIG. 4, the tensile force necessary to separate the operation unit 2 a from the container body 2 b is measured while the tension direction is kept substantially constant by changing the attachment method to 50. Can do.

  In addition, the openability test of the lid container with a tab is the openability test apparatus 1 which does not have the 2nd guide member 24, when the change of the tensile direction at the time of raising the tab 2a1 and cutting the weakening line 2g can be disregarded. It goes without saying that it is feasible. Further, if the openability test of the screw lid container is performed in the state shown in FIG. 8B, the rise from the container main body 2b due to the rotation of the operation portion 2a which is the screw lid will be Since it becomes possible to cancel by moving, the openability test of the screw-lid container can be performed with higher accuracy. In addition, instead of providing the second guide member 24, the measurement shown in FIG. 8B can be realized by turning the position of the unsealing test apparatus 1 90 degrees around the Y direction. It may be.

  FIG. 9A is a schematic right side view showing an example in which the first moving member 30 is moved by the ball screw transmission mechanism. In this example, the stepping motor 41 is disposed on the swing member 20 and rotationally drives a screw shaft 46 disposed substantially parallel to the guide rail 32. A nut 47 that is screwed onto the screw shaft 46 is fixed to the first moving member 30.

  Thus, the 1st moving member 30 may be driven via a ball screw transmission mechanism. In this case, the first rack 45 and the first pinion 44 function as a conversion device that converts the linear movement of the first moving member 30 into rotational power and outputs it to the transmission mechanism 70. Note that the first moving member 30 may be moved by another linear motion mechanism such as a linear motor. In the case of using a ball screw transmission mechanism, the rotational power of the screw shaft 46 may be output to the transmission mechanism 70 after the direction is changed by a bevel gear or the like.

  FIG. 9B is a schematic right side view illustrating an example in which the moment applied to the first moving member 30 is canceled. In this example, the first moving member 30 is configured to have a substantially T shape in a side view, and pulleys 38 are provided at both ends thereof. The load measuring device 90 is disposed on the swing member 20, and the connecting member 102 is a string-like body such as a string or a wire wound around two pulleys 38 between the load measuring device 90 and the operation unit holding member 100. It has become.

  As described above, the first moving member 30 presses the connecting member 102 between the load measuring device 90 and the operation unit holding member 100 via the pulley 38, thereby pulling the operation unit holding member 100. The moment applied to the first moving member 30 (moment about the X direction) can be canceled out. Therefore, even when the dimension of the test body 1 in the Y direction is large, the openability test can be performed with high accuracy.

  In the example shown in FIG. 9B, ½ of the moving speed of the first moving member 30 is the moving speed of the operation unit holding member 100, that is, the tensile speed. In order to make the movement speeds substantially the same, the ratio of the number of teeth of the first pinion 44 and the second pinion 62 may be 2: 1.

  As described above, the unsealing test apparatus 1 according to the present embodiment includes the test body holding member 80 that holds the test body 2 having the opening operation section 2a and the operation section holding member 100 that holds the operation section 2a. And a first moving member 30 that is arranged to be movable in a first direction within a predetermined plane and pulls the operation portion holding member 100, and is movable in a second direction within a plane substantially parallel to the predetermined plane. Output from the first moving mechanism 40, the second moving member 50 to which the specimen holding member 80 is attached, the first moving member 40 that moves the first moving member 30 and outputs rotational power. The second moving mechanism 60 that moves the second moving member 50 by rotational power, the transmission mechanism 70 that transmits the rotational power output from the first moving mechanism 40 to the second moving mechanism 60, and the operation unit holding member 100 Join A load measuring device 90 for measuring the weight, and a.

  With such a configuration, the openability test of various packaging / containers can be performed more easily and with higher accuracy than before. Specifically, since the rotational power is transmitted from the first moving mechanism 40 to the second moving mechanism 60 by the transmission mechanism 70, the first moving mechanism 40 can be controlled stably and with high accuracy only by controlling the first moving mechanism 40. The movement of the first moving member 30 and the movement of the second moving member 50 can be synchronized, and a high-accuracy unsealing test with the tension direction kept substantially constant can be easily performed.

  Further, the unsealing test apparatus 1 further includes a swing member 20 that swings the first moving member 30 so as to change the first direction within a predetermined plane. By doing in this way, since it becomes possible to change the tension | pulling direction into various directions and to perform an openability test, the openability of various packaging and containers can be evaluated from a more multifaceted viewpoint.

  Further, the transmission mechanism 70 includes an input shaft (transmission shaft 72) to which the rotational power output from the first movement mechanism 40 is input, and the input shaft is coaxial with the swing center line C of the swing member 20. Has been placed. By doing so, it is possible to transmit the rotational power regardless of the swing position of the swing member 20 while having a simple configuration. The reliability of the device 1 can be made compatible.

  The test body holding member 80 is configured to hold the test body 2 in a state in which the unsealing point P of the test body 2 substantially coincides with the swing center line C of the swing member 20. By doing in this way, since it becomes possible to hold the opening point P in a substantially constant position regardless of the pulling direction, the pulling direction can be easily changed.

  Further, the test body holding member 80 is configured to hold the test body 2 in a state where a line or a surface opened when the test body 2 is opened is substantially parallel to the second direction. By doing in this way, since it becomes possible to move the test body 2 along the moving direction of the unsealing point P, it is possible to keep the tensile direction in a constant direction with higher accuracy.

  The second direction is a substantially horizontal direction. By doing in this way, the contents of the test body 2 can be prevented from spilling out during the opening test.

  Moreover, you may make it further provide the 2nd rocking member 24 which rocks the 2nd moving member 50 so that a 2nd direction may be changed in a plane substantially parallel to a predetermined plane. By doing in this way, since it becomes possible to change the moving direction of the test body 2 to arbitrary directions, an openability test can be performed in a more various aspect.

  The first moving mechanism 40 includes a driving device (stepping motor 41) that outputs rotational power, and a conversion device (converting the rotational power output from the driving device into movement of the first moving member 30 in the first direction). A first pinion 44 and a first rack 45), and an output shaft (driven shaft 42) for outputting the rotational power output from the driving device to the transmission mechanism 70. By doing in this way, it becomes possible to output rotational power to the transmission mechanism 70 reliably while making the 1st moving mechanism 40 a simpler structure, so that the reliability of the unsealing test apparatus 1 is improved. Can do.

  Further, the first moving mechanism 40 may include a conversion device (the first rack 45 and the first pinion 44) that converts the movement of the first moving member 30 in the first direction into rotational power and outputs it. . By doing in this way, since various existing linear motion mechanisms can be adopted for moving the first moving member 30, the movement of the first moving member 30 can be controlled with higher accuracy, or the unsealing test apparatus 1 may be configured at a lower cost.

  Further, the load measuring device 90 is disposed on the first moving member 30. By doing in this way, since it becomes possible to detect directly the tension | tensile_strength required for opening with a simple structure, a simple and highly accurate opening property test can be performed.

  Further, the operation unit holding member 100 is connected to the load measuring device 90 via a string-like body (connecting member 102), and the first moving member 30 connects the string-like body between the operation unit holding member 100 and the load measuring device 90. You may make it pull the operation part holding member 100 by pressing in between. By doing so, it is possible to cancel the moment applied to the first moving member 30, so that a highly accurate opening test can be performed regardless of the size of the test body 1.

  As mentioned above, although embodiment of this invention was described, the openability test apparatus of this invention is not limited to above-described embodiment, In the range which does not deviate from the summary of this invention, a various change can be added. Of course.

  For example, the shapes and arrangements of the members and mechanisms constituting the openability testing apparatus 1 are not limited to those shown in the above embodiment, and other various shapes and arrangements can be adopted. .

  In the above-described embodiment, an example in which the tension direction can be changed by providing the swing member 20 is shown. However, the present invention is not limited to this, and the tension member 20 is omitted. A simpler configuration in which the direction is fixed in a predetermined direction may be used. Further, the swing member 20 may be omitted, and only the second swing member 24 may be provided.

  In the above embodiment, the transmission shaft 72 is arranged coaxially with the swing center line C. However, the present invention is not limited to this, and the transmission shaft 72 is positioned at the swing center. It may be arranged so as to be shifted from the line C. In this case, the arrangement of each member or the like may be made more efficient. Similarly, the swing center line C and the unsealing point P may be shifted, or the driven shaft 42 is shifted from the swing center line C by disposing the stepping motor 41 on the swing member 20 or the like. Also good. Further, when the second swing member 24 is provided, the swing center of the second swing member 24 may be shifted from the swing center line C, the transmission shaft 72 or the driven shaft 42.

  Further, the unsealing test apparatus 1 is provided with a power transmission release mechanism for releasing transmission of rotational power to the second moving mechanism by a known method and a fixing mechanism for fixing the second moving member 50 by a known method. Thus, the openability test may be performed with the test body 2 fixed. In this case, the openability test can be performed in a wider mode.

  In addition, the functions and effects in the above-described embodiment are merely a list of the most preferable functions and effects resulting from the present invention, and the functions and effects of the present invention are not limited to these.

  The openability test apparatus of the present invention can be used in the field of various packaging and containers.

DESCRIPTION OF SYMBOLS 1 Opening property test apparatus 2 Test body 2a Operation part 20 Oscillating member 24 2nd oscillating member 30 1st moving member 40 1st moving mechanism 41 Stepping motor 42 Followed shaft 44 1st pinion 45 1st rack 50 2nd moving member 60 Second moving mechanism 70 Transmission mechanism 72 Transmission shaft 80 Specimen holding member 90 Load measuring device 100 Operation part holding member 102 Connection member C Oscillation center line P Opening point

Claims (10)

A specimen holding member for holding a specimen having an operation part for opening;
An operation unit holding member for holding the operation unit;
A first moving member that is arranged so as to be movable in a first direction within a predetermined plane and pulls the operation portion holding member;
A second moving member that is movably disposed in a second direction in a plane substantially parallel to the predetermined plane and to which the specimen holding member is attached;
A first moving mechanism for moving the first moving member and outputting rotational power;
A second moving mechanism that moves the second moving member by the rotational power output from the first moving mechanism;
A transmission mechanism that transmits the rotational power output from the first movement mechanism to the second movement mechanism;
A load measuring device for measuring a load applied to the operation unit holding member,
The transmission mechanism is
A transmission input shaft to which the rotational power output from the first moving mechanism is input;
A transmission output shaft that outputs rotational power to the second moving mechanism ,
A swing member that swings the first moving member so as to change the first direction within the predetermined plane ;
Openability test equipment. The transmission input shaft is arranged coaxially with a swing center line of the swing member,
The openability test apparatus according to claim 1 . The test body holding member is configured to hold the test body in a state where an opening point of the test body substantially coincides with a rocking center line of the rocking member.
The openability test apparatus according to claim 1 or 2 . A specimen holding member for holding a specimen having an operation part for opening;
An operation unit holding member for holding the operation unit;
A first moving member that is arranged so as to be movable in a first direction within a predetermined plane and pulls the operation portion holding member;
A second moving member that is movably disposed in a second direction in a plane substantially parallel to the predetermined plane and to which the specimen holding member is attached;
A first moving mechanism for moving the first moving member and outputting rotational power;
A second moving mechanism that moves the second moving member by the rotational power output from the first moving mechanism;
A transmission mechanism that transmits the rotational power output from the first movement mechanism to the second movement mechanism;
A load measuring device for measuring a load applied to the operation unit holding member,
The transmission mechanism is
A transmission input shaft to which the rotational power output from the first moving mechanism is input;
A transmission output shaft that outputs rotational power to the second moving mechanism ,
A second rocking member that rocks the second moving member so as to change the second direction in a plane substantially parallel to the predetermined plane ;
Openability test equipment. A specimen holding member for holding a specimen having an operation part for opening;
An operation unit holding member for holding the operation unit;
A first moving member that is arranged so as to be movable in a first direction within a predetermined plane and pulls the operation portion holding member;
A second moving member that is movably disposed in a second direction in a plane substantially parallel to the predetermined plane and to which the specimen holding member is attached;
A first moving mechanism for moving the first moving member and outputting rotational power;
A second moving mechanism that moves the second moving member by the rotational power output from the first moving mechanism;
A transmission mechanism that transmits the rotational power output from the first movement mechanism to the second movement mechanism;
A load measuring device for measuring a load applied to the operation unit holding member,
The transmission mechanism is
A transmission input shaft to which the rotational power output from the first moving mechanism is input;
A transmission output shaft that outputs rotational power to the second moving mechanism ,
The first moving mechanism includes:
A conversion device that converts the movement of the first moving member in the first direction into rotation power and outputs the rotation power is provided .
Openability test equipment. The test body holding member is configured to hold the test body in a state in which a line or a surface opened when the test body is opened is substantially parallel to the second direction.
The openability test apparatus according to any one of claims 1 to 5 . The second direction is a substantially horizontal direction,
The openability test apparatus according to any one of claims 1 to 6 . The first moving mechanism includes:
A driving device that outputs rotational power;
A conversion device that converts rotational power output from the drive device into movement of the first moving member in the first direction;
An output shaft that outputs the rotational power output from the driving device to the transmission mechanism,
The openability test apparatus according to any one of claims 1 to 7. The load measuring device is disposed on the first moving member,
The unsealing test apparatus according to any one of claims 1 to 8 . The operation unit holding member is connected to the load measuring device via a string-like body,
The first moving member pulls the operation portion holding member by pressing the string-like body between the operation portion holding member and the load measuring device.
The unsealing test apparatus according to any one of claims 1 to 8 .

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