Squeezing device

Abstract

To make it possible to align a direction of an opening of a gap with a direction of pulling a bag.SOLUTION: A squeezing device includes a pair of support bodies that are fixed at a distance from a workbench or other object to be fixed, a pair of squeezing rods that are supported in parallel between the pair of support bodies, and an opening direction changing mechanism that is formed on the support bodies and changes an opening direction of a gap formed between both squeezing rods.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an aperture device. [Background technology]

[0002] In processing plants, for example, viscous raw materials (hereinafter also referred to as contents) arrive sealed in bags, and a squeezing device is used to squeeze out the contents from the bags without leaving any residue.

[0003] As an example of such a squeezing device, Patent Document 1 discloses a device that includes a winding roll and a pressing member that are rotatably fixed to support holes formed in each of a pair of opposing side portions, with the central axis of the support holes as the rotation axis, and that squeezes the contents through a bag through the gap formed between the two.

[0004] However, in the squeezing device according to Patent Document 1, the take-up roll and the pressing member are each rotatably fixed around the central axis of the support hole, so the opening direction of the gap is fixed. For this reason, for example, if the squeezing device is installed for a short person, when a tall person uses it, the opening direction of the gap will not match the direction in which the bag is pulled. As a result, there is a problem that the resistance increases and it becomes difficult to pull out the bag. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2007-290729 A Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, a main object of the present invention is to make the opening direction of the gap coincide with the pulling direction of the bag. [Means for solving the problem]

[0007] In other words, the squeezing device of the present invention is characterized by comprising a pair of supports fixed at a distance from one another to a fixed object such as a workbench, a pair of squeezing bars supported in parallel between the pair of supports, and an opening direction change mechanism formed on the supports for changing the opening direction of the gap formed between the two squeezing bars.

[0008] With this configuration, when the bag is pulled through the gap formed between the pair of squeeze bars, the opening direction of the gap changes according to the pulling direction, which results in less resistance when pulling the bag, making it easier to pull out the bag, compared to when the opening direction of the gap does not match the pulling direction.

[0009] A specific embodiment of the opening direction change mechanism is one in which the opening direction change mechanism is formed on the opposing surfaces of each of the pair of supports and has a guide hole into which the ends of the pair of squeezing rods are commonly inserted, and at least one of the pair of squeezing rods is configured to be movable along the inner surface of the guide hole.

[0010] According to this configuration, the ends of a pair of squeezing rods are inserted into a common guide hole, and at least one of the squeezing rods is configured to be movable along the inner circumferential surface of the guide hole, so that, for example, one squeezing rod moves around the other squeezing rod. This changes the opening direction of the gap according to the direction in which the bag is pulled. As a result, the resistance generated when the bag is pulled is reduced, making it easier to pull out the bag.

[0011] The cross-sectional shape of the guide hole may be circular, and both of the pair of squeezing rods may be configured to be movable along the inner circumferential surface of the guide hole.

[0012] According to this configuration, since the pair of squeeze rods can be supported by the guide holes, there is no need to provide a separate support structure, and the structure is simplified, which reduces manufacturing costs and makes the support easier to clean.

[0013] Furthermore, if the cross-sectional shape of the squeeze rod is circular, the contact surface with the bag is smaller, so that the resistance generated when the bag is pulled is smaller.

[0014] Furthermore, if the drawing rod is a straight type, it can be formed simply by cutting a long rod, thereby reducing manufacturing costs.

[0015] The squeeze rod may also be configured to be movable between a support position in which both ends are inserted and supported in the guide holes, and a removal position in which one end remains inserted in the guide hole while the other end is removed from the guide hole.

[0016] With this configuration, the squeezing rod can be moved to the removal position, and at this position, the other end is shifted to a position where it does not face the guide hole, and one end is removed from the guide hole, allowing it to be easily removed without disassembling the device. As a result, the squeezing rod can be washed thoroughly and kept clean. Also, by removing it in this way, the center of the squeezing rod, which is prone to adhesion of ingredients, does not come into contact with the support, and the support can also be kept clean.

[0017] In addition, the guide hole of at least one of the supports may extend from the opposing surface to the opposite surface, and the squeeze rod may be configured to be movable from a support position in which both ends are inserted and supported in the guide holes so as to pass through the extending guide hole.

[0018] With this configuration, the wringing rod can be easily removed by passing it through the guide hole that penetrates the entire wringing rod. As a result, the wringing rod can be washed thoroughly and kept clean. Effect of the Invention

[0019] According to the present invention configured in this manner, the opening direction of the gap can be aligned with the pulling direction of the bag. [Brief description of the drawings]

[0020] [Figure 1]1 is a perspective view showing a schematic configuration of an aperture stop device according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a partially enlarged perspective view showing a schematic configuration of the aperture stop device according to the embodiment. [Diagram 3] FIG. 2 is a cross-sectional view showing a schematic configuration of the aperture stop device according to the embodiment. [Figure 4] 4 is a perspective view showing a typical method of using the aperture stop device according to the embodiment; FIG. [Diagram 5] 4 is a cross-sectional view showing a schematic movement of the squeezing rod of the squeezing device of the embodiment. FIG. [Figure 6] 5A to 5C are cross-sectional views illustrating a method of using the aperture stop device according to the embodiment. [Figure 7] 5A to 5C are cross-sectional views illustrating a method of using the aperture stop device according to the embodiment. [Figure 8] 13 is a perspective view showing a schematic diagram of a method for removing the squeezing rod of the squeezing device of the embodiment. FIG. [Figure 9] FIG. 11 is a cross-sectional view showing a schematic structure of a diaphragm device according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] <Embodiment> Hereinafter, an embodiment of the aperture device according to the present invention will be described.

[0022] The squeezing device according to the present invention is for squeezing out viscous raw materials sealed in bags in, for example, a factory, and is used by being directly or indirectly fixed to an object to be fixed. The object to be fixed may be, for example, a workbench or a processing device. Needless to say, the device can be used outside of factories.

[0023] The squeezing device 100 of this embodiment is fixed directly to the workbench X, and as shown in Figure 1, comprises a pair of supports 10 fixed to the workbench X with a gap therebetween, and a pair of squeezing rods 20 supported in parallel between the pair of supports 10, and as shown in Figure 4, the contents Z are squeezed out through a bag Y into a gap g formed between the pair of squeezing rods 20.

[0024] The pair of supports 10 are separate bodies having the same shape as shown in Fig. 1. In this embodiment, they are fixed to the side of the workbench X, but the present invention is not limited to this and they may be fixed to the top or bottom, for example. Specifically, as shown in Figs. 2 and 3, the support 10 includes a support part 11 that supports the squeezing rod 20 and a base 12 for fixing the support part 11 to the workbench.

[0025] The base 12 has a plate-shaped magnet 12a on the surface that comes into contact with the workbench X, and is detachably fixed to a metal part of the workbench X by the magnetic force of the magnet. For example, a neodymium magnet with strong magnetic force is used for this magnet. The support 10 may be made of a hard material such as metal or resin.

[0026] The pair of squeezing rods 20 are straight type, and the cross section cut in the direction perpendicular to the axial direction is circular. The squeezing rod 20 in this embodiment is a cylindrical body, but it does not necessarily have to be a cylindrical body and may be a solid body. In addition, the pair of squeezing rods 20 have the same diameter, but it does not necessarily have to be the same diameter and may have different diameters. The squeezing rods 20 may be formed of a hard material such as metal or resin.

[0027] Thus, the squeezing device 100 according to this embodiment further includes an opening direction changing mechanism 30 which is formed in the support body 10 and which changes the opening direction of the gap g formed between the pair of squeezing bars 20.

[0028] Specifically, this opening direction changing mechanism 30 is provided with a guide hole 31 formed on the opposing surface 11a of each of the support parts 11 of the pair of supports 10, into which the ends 20a, 20b of the pair of squeezing rods 20 are commonly inserted. That is, one end 20a is inserted into one guide hole 31 formed in one support 10, and the other end 20b is inserted into one guide hole 31 formed in the other support 10. In this embodiment, the pair of squeezing rods 20 are inserted into these guide holes 31 and supported by the pair of supports 10. Therefore, the guide hole 31 also functions as a support hole for the pair of squeezing rods 20.

[0029] More specifically, the guide hole 31 has a circular cross-sectional shape, and the inner diameter is set to be longer than the sum of the outer diameters of both squeezing rods 20. Therefore, when both squeezing rods 20 are inserted into the guide hole 31, a gap g is formed between the pair of squeezing rods 20 by the difference between the inner diameter of the guide hole 31 and the sum of the outer diameters of both squeezing rods 20. This gap g opens in a direction intersecting the opposing direction of the pair of squeezing rods 20 when viewed from the axial direction of the squeezing rods 20 (in this embodiment, the perpendicular direction).

[0030] The guide hole 31 penetrates from the opposing surface 11a to the opposite surface 11b of the supports 11 facing each other, and has a circular cross section cut in a direction perpendicular to the penetration direction. The guide hole 11 is formed with the same diameter from the opposing surface 11a to the opposite surface 11b.

[0031] With this configuration, the squeezing rod 20 can be moved between a support position A where both ends 20a, 20b are inserted and supported in the guide holes 31 as shown in FIG. 8(a) and a removal position B where one end 20a is inserted into the guide hole 31 and the other end 20b is removed from the guide hole 31 as shown in FIG. 8(b). In other words, the squeezing rod 20 can be moved from the support position A to a removal position B where the other end 20b is removed from the guide hole 31 by inserting one end 20a further deeper into the guide hole 31. Furthermore, as shown in FIG. 8(c), when the squeezing rod 20 is moved to the removal position B, the other end 20b removed from the guide hole 31 can be shifted to a position not facing the guide hole 31. In this position, the squeezing rod 20, which was approximately parallel to the central axis direction of both support holes 11h at the support position A, is tilted with respect to the central axis direction. In other words, guide hole 31 has an inner diameter longer than the outer diameter of squeezing rod 20, and a gap is formed between guide hole 31 and squeezing rod 20 inserted into guide hole 31. For this reason, when squeezing rod 20 is rotated in a direction perpendicular to its axial direction around one end 20a as a fulcrum at removal position B, one end 20a will tilt until it comes into contact with the inner circumferential surface of guide hole 31 and its rotation is restricted. More specifically, squeezing rod 20 rotates and tilts until one end 20a comes into contact with guide hole 31 at two points, the back side and the opening side.

[0032] In the present embodiment, squeezing rod 20 is long enough that both ends 20a, 20b protrude from opposite surface 11b of support 10 when moved to support position A, but this is not essential. For example, both ends 20a, 20b may be long enough to fit within guide hole 31 when moved to support position A.

[0033] Next, a method of using the aperture device 100 according to this embodiment will be described with reference to FIGS.

[0034] First, one end of the bag Y is sandwiched in the gap g between a pair of squeeze rods 10. The other end of the bag Y is left open. Then, as shown in Fig. 4, one end of the bag Y is pulled in a predetermined direction (upward in Fig. 4) and the entire bag Y is passed through the gap g. As a result, the content Z is squeezed out from the other end of the bag Y.

[0035] Here, if the direction of pulling the bag Y is changed while the bag Y is being pulled out of the gap g, the opening direction of the gap g changes accordingly according to the pulling direction. In more detail, for example, as shown in FIG. 6, if the bag Y is pulled straight up, the gap g also opens straight up. From this state, if the pulling direction of the bag Y is changed and it is pulled diagonally up as shown in FIG. 7, both squeezing rods 20 move along the inner peripheral surface of the guide hole 31 while maintaining a parallel (parallel) state, and thus the gap g opens diagonally up. That is, the pair of squeezing rods 20 rotate in the guide hole 31 around the central axis of the guide hole 31 as the rotation axis, as shown in FIG. 5. Also, the squeezing rod 20 rotates around its own central axis as the rotation axis.

[0036] Additionally, the inner circumferential surface of the guide hole 31 tapers toward the pulling direction when viewed from the axial direction. As a result, when the bag Y is pulled, both squeezing rods 20 move toward each other along the inner circumferential surface of the guide hole 31. Furthermore, since the guide hole 31 has a circular cross section, the same state is maintained even if the pulling direction changes.

[0037] When removing the squeezing rod 20 from the squeezing device 100 according to this embodiment, as shown in FIG. 8, since both of the pair of guide holes 31 are through holes, the squeezing rod 20 can be removed by simply moving it in the axial direction and removed from both guide holes 31. As another method of removal, first, as shown in FIG. 8(a), the squeezing rod 20 placed at the support position A is moved to the removal position B, where one end 20a of the squeezing rod 20 is further inserted into the guide hole 31 and the other end 20b is removed from the guide hole 31, as shown in FIG. 8(b). From this state, as shown in FIG. 8(c), the other end 20b removed from the guide hole 31 is shifted so as not to face the guide hole 31, and the squeezing rod 20 is tilted as a whole, and then one end 20a is removed from the guide hole 31 and removed.

[0038] According to this embodiment, when the bag Y is pulled, the opening direction of the gap g changes according to the pulling direction. As a result, the resistance generated when the bag Y is pulled is smaller than when the opening direction of the gap g does not match the pulling direction, making it easier to pull out the bag Y.

[0039] In this embodiment, since the guide hole 31 has a circular cross section, the squeeze rods 20 move toward each other when pulled. This increases the force that pinches the bag Y, making it easier to squeeze out the contents Z.

[0040] In addition, in this embodiment, since the squeezing rod 20 has a circular cross section, it rotates on its axis when pulled. This reduces the resistance generated when the bag Y is pulled, making it easier to pull out the bag Y.

[0041] In this embodiment, both ends 20a, 20b of the pair of squeezing rods 20 are inserted into and supported by guide holes 31. In other words, guide holes 31 also function as support holes. This eliminates the need to form separate support holes, simplifying the structure of support 10. As a result, support 10 is easier to clean.

[0042] In this embodiment, the guide hole 31 is a through hole, so the squeezing rod 20 can be moved to the removal position B. As a result, by shifting the other end 20b to a position where it does not face the guide hole 31 at this position and removing one end 20a from the guide hole 31, the squeezing rod 20 can be easily removed without disassembling the device. This allows the squeezing rod 20 to be thoroughly washed and kept clean. By removing the squeezing rod 20 in this manner, the center of the squeezing rod 20, to which ingredients tend to adhere, does not come into contact with the support 10, and the support 10 can also be kept clean. Furthermore, the squeezing rod 20 can be removed simply by moving it in the axial direction.

[0043] <Other embodiments> The aperture device according to the present invention is not limited to the aspects of the above-described embodiment. For example, in the above-described embodiment, the pair of supports are separate, but they do not have to be separate. For example, the bases may be connected to each other to form an integrated unit.

[0044] In the above embodiment, the guide holes of both supports are through holes, but the present invention is not limited to this. For example, the guide holes of one or both supports may be bottomed and closed on the opposite surface.

[0045] In the opening direction changing mechanism of the above embodiment, both squeezing rods can move along the inner circumferential surface of the guide hole, but as shown in FIG. 9, only one squeezing rod 20 may move along the inner circumferential surface of the guide hole 31. Specifically, in this embodiment, the guide hole 31 does not penetrate from the opposing surface 11a to the opposite surface 11b, but has a bottom. A support hole 11h into which the other squeezing rod 20 is inserted is formed in the center of the bottom. The one squeezing rod 20 moves along the inner circumferential surface of the guide hole 31, so that it moves around the other squeezing rod 20. Even in such an embodiment, the opening direction of the gap g changes according to the pulling direction of the bag.

[0046] In addition, in the above embodiment, the pair of squeezing rods is inserted into a common guide hole, but the pair of squeezing rods may be inserted into separate guide holes.

[0047] In the above embodiment, the squeeze rod is of a straight type, but the present invention is not limited to this. For example, only the ends that are inserted into the guide holes may have a small diameter.

[0048] The cross-sectional shape of the squeeze rod is not limited to a circle, but may be, for example, a polygon or an ellipse. The cross-sectional shape of the guide hole is also not limited to a circle, but may be, for example, a polygon.

[0049] Furthermore, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications are possible without departing from the spirit of the present invention. [Explanation of symbols]

[0050] X...Object to be fixed Y...Bag Z...Contents 100...Aperture device 10...Support 11a...Opposite surface 11b... Opposite side 30 Opening direction change mechanism 31 Guide hole 20... Squeezing rod 20a...One end 20b...other end

Claims

1. A pair of supports fixed to a workbench or other object with a gap between them; A pair of squeeze rods supported in parallel between the pair of supports; and an opening direction changing mechanism formed in the support body for changing the opening direction of the gap formed between the two squeezing bars.

2. The opening direction changing mechanism includes a guide hole formed on each of the opposing surfaces of the pair of supports and into which the ends of the pair of squeeze rods are commonly inserted, 2. The squeezing device according to claim 1, wherein at least one of the pair of squeezing rods is configured to be movable along an inner circumferential surface of the guide hole.

3. The cross-sectional shape of the guide hole is circular, 3. The squeezing device according to claim 2, wherein both of said pair of squeezing rods are configured to be movable along the inner circumferential surface of said guide hole.

4. 3. The squeezing device according to claim 2, wherein the cross-sectional shape of said squeezing rod is circular.

5. 3. The wringing device according to claim 2, wherein said wringing rod is of a straight type.

6. 4. The squeezing device according to claim 3, wherein the squeezing rod is configured to be movable between a support position in which both ends are inserted and supported in the guide holes, and a removal position in which one end remains inserted in the guide hole while the other end is removed from the guide hole.

7. The guide hole of the at least one support passes through from the opposing surface to the opposite surface, 4. The squeezing device according to claim 3, wherein said squeezing rod is movable from a support position in which both ends are inserted and supported in said guide holes so as to pass through said penetrating guide holes.

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