Frozen object hammering device

Abstract

To provide a frozen object hammering device capable of hammering a frozen object stored in a package without taking out the frozen object from the package.SOLUTION: A frozen object hammering device 10 for hammering a frozen object, the frozen object hammering device 10 includes: a support base 11 on which the frozen object is placed; a receiving plate 13 disposed above the support base 11 in a vertical direction; a weight 16 disposed above the receiving plate 13 in the vertical direction and capable of moving up and down along the vertical direction; a butter hammer 14 provided on the receiving plate 13 and transmitting hammering force received from the descending weight 16 to the frozen object; and a hammer support mechanism 28 provided on the receiving plate 13 and movably supporting the butter hammer 14 within a predetermined range in the vertical direction between the support base 11 and the receiving plate 13.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a frozen object impacting device that impacts frozen objects. [Background technology]

[0002] An example of a frozen object striking device that strikes frozen objects is described in Patent Document 1. The frozen object striking device described in Patent Document 1 has a water pump, a water sprinkling pipe, and a block fixing device on which a block of frozen objects can be placed. In the frozen object striking device described in Patent Document 1, water sent from the water pump is sprayed from a small hole in the water sprinkling pipe with a striking force of about 1.5 g / cm2 or more, destroying and thawing the frozen block. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 54-147943 Summary of the Invention [Problem to be solved by the invention]

[0004] The present inventors recognized a problem with the frozen item striking device described in Patent Document 1, in that when attempting to strike a frozen item contained in a package, such as a cardboard box, the frozen item must be removed from the package in a process prior to striking the frozen item, which is cumbersome.

[0005] An object of the present disclosure is to provide a frozen item impacting device that is capable of impacting frozen items contained in a package without removing the frozen items from the package. [Means for solving the problem]

[0006] The present disclosure relates to a frozen object striking device that strikes frozen objects, the frozen object striking device comprising: a first support stand on which the frozen object is placed; a second support stand that is positioned vertically above the first support stand; a weight that is positioned vertically above the second support stand and that can rise and fall along the vertical direction; a hammer that is provided on the second support stand and transmits the striking force received from the descending weight to the frozen object; and a hammer support mechanism that is provided on the second support stand and supports the hammer so that it can be moved within a predetermined range in the vertical direction between the first support stand and the second support stand. Effect of the Invention

[0007] According to the present disclosure, it is possible to strike a frozen item contained in a package without removing the frozen item from the package. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a front view of a frozen butter impact device, which is an example of a frozen object impact device. [Diagram 2] FIG. 2 is a side view of the frozen butter impact device. [Diagram 3] FIG. 2 is a plan view of the frozen butter impact device. [Figure 4] This is a partial side view of the frozen butter impact device, including the weight and butter hammer. [Diagram 5] 1 is a partial side view of the frozen butter striking device, including a weight and a butter hammer. [Figure 6] 1 is a side view of a weight support mechanism of the frozen butter impact device. FIG. [Figure 7A] FIG. 2 is a schematic diagram showing the compressed air supply system of the frozen butter impact device when the automatic button is operated in the initial state. [Figure 7B] FIG. 2 is a schematic diagram showing the compressed air supply system of the frozen butter impact device, illustrating the state in which the bracket and weight are raised in the first step. [Figure 7C]FIG. 1 shows a compressed air supply system for a frozen butter impact device, and is a schematic diagram showing the state in which the bracket and weight are at the top dead center in the first process. [Figure 7D] FIG. 2 is a schematic diagram showing the compressed air supply system in the frozen butter impact device, illustrating the transition from the first process to the second process. [Figure 7E] FIG. 13 is a schematic diagram showing the compressed air supply system of the frozen butter impact device, illustrating the state in which the weight descends from the top dead center in the third process. [Figure 7F] FIG. 13 is a schematic diagram showing the compressed air supply system of the frozen butter impact device, with the weight at the bottom dead center in the third process. [Figure 7G] FIG. 2 is a schematic diagram showing the compressed air supply system in the frozen butter impact device, illustrating the transition from the third step to the fourth step. [Figure 8] 1A to 1C are schematic side views showing the initial state, the first step and the second step of a frozen butter impact device. [Figure 9] 1 is a schematic side view showing the third step, the final step 3 and the final step 4 of the frozen butter impact device. FIG. [Figure 10A] FIG. 2 is a schematic diagram showing the compressed air supply system in the frozen butter impact device, illustrating the final process 1. [Figure 10B] FIG. 2 is a schematic diagram showing the compressed air supply system in the frozen butter impact device, illustrating the final process 2. [Figure 10C] FIG. 2 is a schematic diagram showing the compressed air supply system in the frozen butter impact device, illustrating the final process 3. [Figure 10D] FIG. 2 is a schematic diagram showing the compressed air supply system in the frozen butter impact device, illustrating the final process 4. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (overview) Hereinafter, several embodiments of the frozen object striking device will be described with reference to the drawings. In this embodiment, a frozen butter striking device that strikes a package containing frozen butter with a hammer to break the frozen butter will be described as an example of a frozen object striking device. In the drawings for explaining this embodiment, the same parts are generally given the same reference numerals, and repeated explanations will be omitted.

[0010] (Configuration of frozen butter striking device) 1, 2, and 3 show a frozen butter hitting device 10. The frozen butter hitting device 10 has a support base 11, a plurality of support columns 12, a receiving plate 13, a butter hammer 14, a plurality of pipe guides 15, a weight 16, a rodless cylinder 17, a rodless cylinder bracket (hereinafter abbreviated as "bracket") 18, a bracket arm 19, a weight support mechanism 20, and a cover 21.

[0011] The support base 11 is an element that supports other elements and mechanisms constituting the frozen butter hitting device 10, and also supports a package 23 in which the frozen butter 22 is stored. The frozen butter 22 is butter that has been frozen to increase its hardness. The support base 11 is placed at a place of use 25 via a plurality of level adjuster bolts 24. The plurality of level adjuster bolts 24 are provided to support the support base 11 and to adjust the height of the support base 11 relative to the place of use 25 in the vertical direction. The vertical direction means the direction of gravity. The support base 11 is, for example, made of a metal plate, and the support base 11 is kept approximately horizontal by the plurality of level adjuster bolts 24. As shown in FIG. 3, when the support base 11 is viewed in a plan view from directly above in the vertical direction, the outer peripheral shape of the support base 11 is, for example, approximately rectangular.

[0012] As an example, four support columns 12 are provided. Each of the support columns 12 is made of a metal square pipe. The support columns 12 are fixed to the upper surface of the support base 11 while standing in the vertical direction. The four support columns 12 are arranged at different positions on the upper surface of the support base 11. More specifically, the support columns 12 are arranged at positions corresponding to the four corners of a quadrangle, for example a rectangle, in a plan view of the support base 11.

[0013] The backing plate 13 is an element that supports the butter hammer 14, the multiple pipe guides 15, etc., and is fixed to four support columns 12. The backing plate 13 is, for example, made of a metal plate, and is held approximately horizontally by the four support columns 12. As shown in Fig. 5, a plate 26 is fixed to the upper surface of the backing plate 13. In addition, a hole 27 that passes through the plate 26 and the backing plate 13 in the vertical direction is provided.

[0014] The butter hammer 14 is an element that transmits the impact force received from the weight 16 to the package 23 and the frozen butter 22. More specifically, the butter hammer 14 is an element that strikes the package 23 in which the frozen butter 22 is stored. The butter hammer 14 is made of metal, for example, and is supported on the receiving plate 13 via a hammer support mechanism 28. While supported by the hammer support mechanism 28, the butter hammer 14 has a protrusion 29 that protrudes downward in the vertical direction.

[0015] The butter hammer 14 is supported by a hammer support mechanism 28 so that it can move within a predetermined range in the vertical direction relative to the backing plate 13. The hammer support mechanism 28 has a plurality of bolts, nuts attached to each bolt, and tension coil springs attached to each bolt. The compression coil springs can expand and contract in the vertical direction. The predetermined range over which the butter hammer 14 can move in the vertical direction is determined by the attachment positions of the nuts relative to the bolts in the vertical direction, the spring constant of the tension coil spring, etc. Furthermore, a metal support ring 30 is placed on the plate 26 of the backing plate 13.

[0016] A plurality of pipe guides 15, specifically three pipe guides 15, are provided protruding vertically from the upper surface of plate 26. The three pipe guides 15 are elements that prevent weight 16 from moving in a direction intersecting the vertical direction. The three pipe guides 15 are made of metal. As shown in FIG. 3, when backing plate 13 is viewed from above, the three pipe guides 15 are disposed at equal intervals on the same circumference centered on reference position A1.

[0017] The weight 16 is an element for applying a striking force to the butter hammer 14, and is made of, for example, metal. The weight 16 is cylindrical, and an engagement groove 31 is provided in the upper part of the weight 16. The engagement groove 31 is provided in an annular shape around the entire circumference of the weight 16. In addition, a protrusion 32 that comes into contact with the butter hammer 14 is provided at the lower end of the weight 16. The weight 16 is disposed above the butter hammer 14 in the vertical direction, as shown in Figures 4 and 5.

[0018] The weight 16 can move in the vertical direction, that is, can rise and fall. The weight 16 can fall by gravity, and can rise and fall along the imaginary line B1 shown in FIG. 4 while being supported by the rodless cylinder 17. The imaginary line B1 is a straight line extending in the vertical direction, and passes through the reference position A1 shown in FIG. 3. When the receiving plate 13 is viewed in a plan view as shown in FIG. 3, the engagement groove 31 and the protrusion 32 are arranged with the reference position A1 as the center. When the weight 16 rises or falls, the protrusion 32 can enter the receiving ring 30 and the hole 27, and can exit from the receiving ring 30 and the hole 27. When the weight 16 falls and the protrusion 32 enters the hole 27, the tip of the protrusion 32 reaches below the receiving plate 13 in the vertical direction and strikes the butter hammer 14.

[0019] Weight 16 is disposed among three pipe guides 15 in the space above backing plate 13. Weight 16 comes into contact with three pipe guides 15, thereby restricting weight 16 from moving in a direction other than the vertical direction. As shown in Fig. 3, when backing plate 13 is viewed from directly above in a plan view, the shape of the outer circumferential surface of weight 16 is a circle centered on reference position A1, and weight 16 is disposed with reference position A1 as its center.

[0020] The rodless cylinder 17 is provided on the support base 11. The rodless cylinder 17 has a function of raising and lowering the weight 16. As shown in FIG. 3, the rodless cylinder 17 has a linear guide 33, a slider 34, a cylinder tube, a first air chamber 80, a second air chamber 81, a piston 82, and the like. The linear guide 33 is a rail provided along the vertical direction. The slider 34 is attached to the linear guide 33. The first air chamber 80, the second air chamber 81, and a piston are provided in the cylinder tube, and the first air chamber 80 and the second air chamber 81 are partitioned by the piston 82. Compressed air is supplied to either the first air chamber 80 or the second air chamber 81, and compressed air is discharged from the other. The piston 82 is connected to the slider 34, and the slider 34 is operated vertically along the linear guide 33 together with the piston 82. When the air pressure in the first air chamber 80 is increased, the piston 82 and the slider 34 are raised, and when the air pressure in the second air chamber 81 is increased, the piston 82 and the slider 34 are lowered. In this way, the slider 34 reciprocates and stops between the top dead center and the bottom dead center. In the vertical direction, the top dead center is higher than the bottom dead center.

[0021] Further, a rodless cylinder bracket (hereinafter, abbreviated as "bracket") 18 is fixed to the slider 34. Furthermore, two bracket arms 19 are fixed to the bracket 18. In a plan view of the rodless cylinder 17, the two bracket arms 19 are arranged in parallel, and the two bracket arms 19 can support the weight 16 via a receiving ring 30. The rodless cylinder 17 and the two bracket arms 19 are operated in the vertical direction together with the slider 34. Therefore, when the slider 34 rises along the linear guide 33 with the two bracket arms 19 supporting the weight 16, the weight 16 is also raised. When the slider 34 descends along the linear guide 33 with the two bracket arms 19 supporting the weight 16, the weight 16 is also lowered.

[0022] The weight support mechanism 20 is provided to support the weight 16, which has been raised by the rodless cylinder 17, at the top dead center in the vertical direction. When the weight 16 is supported at the top dead center, the lower end of the weight 16 is stopped at a position that is a predetermined amount, for example, 1.5 m or more, higher than the receiving plate 13. As shown in Figures 3 and 6, the weight support mechanism 20 has an upper plate 35 and a lower plate 36 fixed to the pipe guide 15, a cylinder bracket 37 fixed to the lower plate 36, an air cylinder 38 provided on the cylinder bracket 37, a drive ring 39 interposed between the upper plate 35 and the lower plate 36, and an insertion / removal lever 40 connected to the drive ring 39.

[0023] The upper plate 35 is disposed above the lower plate 36 in the vertical direction. As shown in FIG. 3, when the receiving plate 13 is viewed from above, the upper plate 35 and the lower plate 36 are configured in an annular shape centered on the reference position A1. Lever guide pins 69, 70 are fixed to the upper plate 35 and the lower plate 36. The drive ring 39 is disposed between the upper plate 35 and the lower plate 36. As shown in FIG. 3, when the receiving plate 13 is viewed from above, the drive ring 39 is disposed in an annular shape centered on the reference position A1. The drive ring 39 is operable within a predetermined angle range centered on the reference position A1 relative to the upper plate 35 and the lower plate 36. The insertion / removal lever 40 is attached to the drive ring 39 so as to be operable around a support shaft 41. A plurality of insertion / removal levers 40, for example, two, are provided, and when the receiving plate 13 is viewed from above, the support shaft 41 is disposed on the same circumference centered on the reference position A1.

[0024] The air cylinder 38 has a reciprocating plunger 42, which is connected to a drive ring 39. The plunger 42 is pushed by a compression spring (not shown), and the drive ring 39 is biased counterclockwise in FIG. 3. When compressed air is discharged from the air cylinder 38, the plunger 42 stops at a forward position pushed by the compression spring. The insertion / removal lever 40 also stops in contact with the lever guide pin 69. Therefore, when the weight 16 is located at the top dead center, the tip of the insertion / removal lever 40 enters the engagement groove 31 of the weight 16 and stops. In other words, the insertion / removal lever 40 engages with the weight 16, and the weight 16 is held at the top dead center.

[0025] In contrast, when compressed air is supplied to the air cylinder 38 while the lever 40 is holding the weight 16 at the top dead center, the plunger 42 moves from the forward position to the backward position against the force of the compression spring and stops, and the drive ring 39 rotates clockwise within a predetermined angle range. When the drive ring 39 rotates clockwise, the lever 40 comes into contact with the lever guide pin 70 and moves clockwise around the support shaft 41 and stops. As a result, the tip of the lever 40 retracts from the engagement groove 31 of the weight 16. In other words, the lever 40 is released from the weight 16, and the weight 16 can descend from the top dead center.

[0026] The cover 21 is a structure that covers the space above the receiving plate 13. The cover 21 is attached to the support 12, and an operator can open and close the cover 21. Three pipe guides 15, a weight support mechanism 20, a weight 16, and the like are arranged in the space covered by the cover 21. The cover 21 is made of, for example, metal, and has a window 43 opened therein. The window 43 is covered by a transparent or semi-transparent light-transmitting member 44. The light-transmitting member 44 includes glass or synthetic resin. The operator can visually check the inside of the cover 21 through the light-transmitting member 44 from the outside of the cover 21. The cover 21 is provided with an operation panel 45. The operation panel 45 is provided with various operation buttons operated by the operator, such as a start button 45A, a stop button 45B, an automatic button 45C, an operation button 45D, and an end button 45E. When the operation panel 45 is operated, the supply state of compressed air to the rodless cylinder 17 and the supply state of compressed air to the weight support mechanism 20 are controlled.

[0027] (Various detection mechanisms) A metal stay 46 is provided upright on the upper surface of the receiving plate 13. A bracket 47 is attached to the stay 46, and a mechanical valve 48 and a valve switch fitting 49 are attached to the bracket 47. The valve switch fitting 49 is provided so as to be operable, and the state of the valve switch fitting 49 can be switched between ON when it is in contact with the weight 16 and OFF when it is separated from the weight 16. The on / off state of the valve switch fitting 49 can also be switched manually by an operator.

[0028] Also provided are bracket contact switches 50, 83 shown in FIG. 7A. The bracket contact switches 50, 83 are brought into contact with or separated from the bracket 18, and their operating states are switched according to the position of the bracket 18 in the vertical direction. The bracket contact switch 50 is brought into contact when the bracket 18 is located at the bottom dead center, and separated when the bracket 18 is located above the bottom dead center. The bracket contact switch 83 is brought into contact when the bracket 18 is located at the top dead center, and separated when the bracket 18 is located below the top dead center. Furthermore, speed controllers 51, 84 shown in FIG. 7A are provided. The speed controller 84 supplies air to the first air chamber 80 of the rodless cylinder 17, and discharges air from the first air chamber 80. Also, the speed controller 84 adjusts the flow rate of compressed air discharged from the first air chamber 80 to be less than the flow rate of compressed air supplied to the second air chamber 81. The speed controller 51 supplies air to the second air chamber 81 of the rodless cylinder 17 and discharges air from the second air chamber 81. The speed controller 51 also adjusts the flow rate of the compressed air discharged from the second air chamber 81 to be less than the flow rate of the compressed air supplied to the first air chamber 80. Since the speed controller 51 adjusts the flow rate of the compressed air discharged from the second air chamber 81, the speed at which the bracket 18 rises can be adjusted. Since the speed controller 84 adjusts the flow rate of the compressed air discharged from the first air chamber 80, the speed at which the bracket 18 descends can be adjusted.

[0029] A package detection switch 52 shown in Fig. 5 is provided. The package detection switch 52 is provided, for example, between the support base 11 and the butter hammer 14. The package detection switch 52 is activated when it comes into contact with a package 23 placed on the support base 11. If the package 23 is not on the support base 11, the package detection switch 52 does not activate.

[0030] (Circuit diagram) FIG. 7A is a circuit diagram showing a compressed air supply system in the frozen butter impact device 10. An air compressor 56 is provided as an example of an air machine that draws in air and discharges compressed air. A passage 53 is connected to the discharge port of the air compressor 56. A passage 90 is connected to the passage 53, and the passage 90 is connected to a mechanical valve 91. The state of the mechanical valve 91 is switched according to the operating state of the bracket contact switch 50, that is, the position of the bracket 18 in the vertical direction. The mechanical valve 91 is connected to a passage 92. The mechanical valve 91 has an input port 93, an output port 94, a drain port 95, a plunger, and a compression spring. The state of the mechanical valve 91 is switched by operating the plunger.

[0031] 7D, when bracket 18 is located at the bottom dead center, mechanical valve 91 connects input port 93 and output port 94 and closes drain port 95. Therefore, compressed air discharged from air compressor 56 is supplied to input port 93 through passages 53 and 90, and is supplied from output port 94 to passage 92. As shown in FIG. 7G, when bracket 18 is located above the bottom dead center, mechanical valve 91 connects output port 94 and drain port 95 and closes input port 93. Therefore, compressed air in passage 92 is discharged from drain port 95.

[0032] 7A, there is provided a mechanical valve 100 whose state is switched according to the operating state of the bracket contact switch 83, i.e., the position of the bracket 18 in the vertical direction. The mechanical valve 100 is connected to passages 101 and 102. The passage 101 is connected to the passage 53. The mechanical valve 100 has an input port 103, an output port 105, a drain port 104, a plunger, and a compression spring. The input port 103 is connected to the passage 101, and the output port 105 is connected to the passage 102. The state of the mechanical valve 100 is switched by the operation of the plunger.

[0033] When the bracket 18 is located at the top dead center as shown in Fig. 7C, the mechanical valve 100 connects the input port 103 and the output port 105 and closes the drain port 104. Therefore, the compressed air in the passage 101 is supplied from the output port 105 to the passage 102. When the bracket 18 is located below the top dead center as shown in Fig. 7B, the mechanical valve 100 connects the output port 105 and the drain port 104 and closes the input port 103. Therefore, the compressed air in the passage 102 is discharged from the drain port 104.

[0034] As shown in Figs. 4 and 5, the mechanical valve 48 is connected to a valve switch fitting 49, and the state of the mechanical valve 48 is switched according to the position of the weight 16 in the vertical direction. As shown in Fig. 7A, the mechanical valve 48 is connected to a passage 92 and a passage 96. The mechanical valve 48 has an input port 97, an output port 98, a drain port 99, a plunger, a compression spring, and the like. The input port 97 is connected to the passage 92, and the output port 98 is connected to the passage 96. The state of the mechanical valve 48 is switched by the operation of the plunger. When the weight 16 is located at the bottom dead center, as shown in Fig. 7F, the mechanical valve 48 connects the input port 97 and the output port 98 and closes the drain port 99. Therefore, the compressed air supplied to the passage 92 is supplied from the output port 98 to the passage 96. 7B, when the weight 16 is positioned above the bottom dead center, the mechanical valve 48 connects the output port 98 and the drain port 99 and closes the input port 97. As a result, the compressed air in the passage 96 is discharged from the drain port 99.

[0035] 7A, a passage 106 is connected to the passage 53. An air operated valve 60 is provided connected to the passages 96, 102, 106, 113, and 114. The air operated valve 60 has a function of switching the compressed air discharged from the air compressor 56 to the first air chamber 80 and the second air chamber 81. The air operated valve 60 has an input port 107, output ports 108 and 109, a drain port 110, operation pressure (signal pressure) ports 111 and 112, and a plunger. The input port 107 is connected to the passage 106, and the output port 108 is connected to a passage 113. The passage 113 is connected to the first air chamber 80, and the speed controller 84 is provided in the passage 113. The output port 109 is connected to a passage 114. The passage 114 is connected to the second air chamber 81, and the speed controller 51 is provided in the passage 114. Operating pressure port 111 is connected to passage 96 and operating pressure port 112 is connected to passage 102 .

[0036] The air operated valve 60 switches its operating state according to the difference between the pressure of the compressed air supplied to the operating pressure port 111 and the pressure of the compressed air supplied to the operating pressure port 112. When the pressure of the operating pressure port 111 is equal to the pressure of the operating pressure port 112, the plunger of the air operated valve 60 does not operate and the state is maintained. When the pressure of the operating pressure port 111 exceeds the pressure of the operating pressure port 112, the input port 107 and the output port 108 are connected, and the output port 109 and the drain port 110 are connected, as shown in FIG. 7B. Therefore, the compressed air in the passage 106 is supplied to the first air chamber 80 via the output port 108 and the passage 113. Moreover, the compressed air in the second air chamber 81 is discharged from the drain port 110 via the passage 114. Therefore, the bracket 18 and the piston 82 rise.

[0037] On the other hand, when the pressure of the operating pressure port 112 exceeds the pressure of the operating pressure port 111, the input port 107 and the output port 109 are connected, and the output port 108 and the drain port 110 are connected, as shown in Fig. 7C. Therefore, the compressed air in the passage 106 is supplied to the second air chamber 81 via the output port 109 and the passage 114. Also, the compressed air in the first air chamber 80 is discharged from the drain port 110 via the passage 113. Therefore, the bracket 18 and the piston 82 descend. The speed at which the bracket 18 and the piston 82 ascend and descend are adjusted by the speed controllers 51 and 84, respectively.

[0038] Further, there is provided a mechanical valve 86 shown in FIG. 7A, whose operating state is switched depending on the operating state of the package detection switch 52 shown in FIG. 5, that is, the presence or absence of the package 23. The mechanical valve 86 is connected to the passages 115 and 116. The passage 116 is connected to the passage 106. The mechanical valve 48 has an input port 117, an output port 118, and a drain port 119. The input port 117 is connected to the passage 116, and the output port 118 is connected to the passage 115. When the package 23 is on the support base 11, the mechanical valve 86 connects the input port 117 and the output port 118, and closes the drain port 119, as shown in FIG. 7D. Therefore, the compressed air discharged from the air compressor 56 is supplied to the passage 115 through the passages 106, 116, and the output port 118. 7B, the mechanical valve 86 connects the output port 118 and the drain port 119 and closes the input port 117. Therefore, the compressed air in the passage 115 is discharged from the drain port 119.

[0039] As shown in FIG. 7A, the passage 115 is connected to the push button valve 120. The state of the push button valve 120 is changed by operating a button provided on the operation panel 45. The push button valve 120 has an input port 121, an output port 122, and a drain port 123. The input port 121 is connected to the passage 115, and the output port 122 is connected to the passage 124. When the automatic button 45C of the operation panel 45 is pressed, the push button valve 120 connects the input port 121 and the output port 122, as shown in FIG. 7E, and closes the drain port 123. Therefore, the compressed air in the passage 115 is supplied to the passage 124. If the automatic button 45C is not pressed, the push button valve 120 connects the output port 122 and the drain port 123, as shown in FIG. 7D, and closes the input port 121. Therefore, the compressed air in the passage 124 is discharged from the drain port 123.

[0040] Further, as shown in FIG. 7A, a cover valve 125 is provided. The state of the cover valve 125 is switched depending on whether a cover switch 126 shown in FIG. 1 is on or off. The cover switch 126 is on when the cover 21 is closed, and is off when the cover 21 is open. The cover valve 125 has an input port 127, an output port 128, and a drain port 129. The input port 127 is connected to the passage 124, and the output port 128 is connected to the passage 130. When the cover switch 126 is on, the cover valve 125 connects the input port 127 and the output port 128, as shown in FIG. 7E, and closes the drain port 129. Therefore, the compressed air in the passage 124 is supplied to the passage 130. When the cover switch 126 is off, the cover valve 125 connects the input port 127 and the drain port 129, and closes the output port 128. As a result, the compressed air in passage 124 is discharged through drain port 129 .

[0041] 7A, an air operated valve 85 is provided to switch between supplying compressed air to the air cylinder 38 and discharging compressed air. The air operated valve 85 has an input port 140, an output port 141, a drain port 142, operation pressure (signal pressure) ports 143 and 150, and a plunger. The input port 140 is connected to the passage 53, and the output port 141 is connected to the air cylinder 38 via a passage 145. The operation pressure port 143 is connected to the passage 130. The operation pressure port 150 is connected to a passage 146. A passage 147 is provided that is connected to the operation pressure port 143. A changeover valve 148 is provided to connect the passage 102 to either the passage 146 or the passage 147. The changeover valve 148 is switched between states by an operator operating a selector switch 149. When the select switch 149 is turned off, the changeover valve 148 connects the passage 102 to the passage 146 and blocks the passage 102 from the passage 147. When the select switch 149 is turned on, the changeover valve 148 connects the passage 102 to the passage 147 and blocks the passage 102 from the passage 146.

[0042] The air operated valve 85 switches its operating state according to the difference between the pressure of the compressed air supplied to the operating pressure port 143 and the pressure of the compressed air supplied to the operating pressure port 150. When the pressure of the operating pressure port 143 is equal to the pressure of the operating pressure port 150, the air operated valve 85 maintains its state without the plunger operating. When the pressure of the operating pressure port 143 exceeds the pressure of the operating pressure port 150, the input port 140 and the output port 141 of the air operated valve 85 are connected and the drain port 142 is closed as shown in FIG. 7E. Therefore, the compressed air in the passage 53 is supplied to the air cylinder 38 via the output port 141 and the passage 145. The insertion / removal lever 40 is therefore released from the weight 16.

[0043] On the other hand, when the pressure at the operating pressure port 150 exceeds the pressure at the operating pressure port 143, the input port 140 and the output port 141 are both connected to the drain port 142, as shown in Fig. 7D. Therefore, the compressed air in the air cylinder 38 is discharged from the drain port 142 through the passage 145. Therefore, the insertion / removal lever 40 is engaged with the weight 16.

[0044] (Example of operation) 8 and 9 show an example of operation of the frozen butter beating device 10 in this embodiment, that is, a method of beating frozen butter. In this embodiment, the cover 21 is basically closed, and the cover 21 is opened only during maintenance, etc.

[0045] (Initial state) The initial state of the frozen butter striking device 10 means that the operation panel 45 is not operated, the air compressor 56 is stopped, and the package 23 is not on the support base 11. Compressed air is not discharged from the air compressor 56. In the initial state of the frozen butter striking device 10, as shown in Figs. 7A and 8, the bracket 18 is stopped at the bottom dead center, and the weight 16 is stopped at the bottom dead center while being supported by the bracket arm 19. Therefore, the mechanical valve 91 connects the input port 93 and the output port 94 as shown in Fig. 7A. Furthermore, the mechanical valve 48 connects the input port 97 and the output port 98. Furthermore, the mechanical valve 100 closes the input port 103. Furthermore, the air operated valve 85 connects the input port 140 and the output port 141, and closes the drain port 142. Furthermore, the butter hammer 14 is stopped at the initial position.

[0046] (1st step) The operator operates the start button 45A of the operation panel 45 to start the frozen butter striking device 10. Also, the select switch 149 of the operation panel 45 is turned off. Next, when the operator operates (turns on) the automatic button 45C of the operation panel 45, the air compressor 56 is driven to discharge compressed air. The compressed air discharged from the air compressor 56 is supplied to the operating pressure port 111 through the passages 53, 92, and 96 as shown in FIG. 7A. Then, the air operated valve 60 connects the input port 107 and the output port 108, and also connects the output port 109 and the drain port 110. Therefore, the compressed air in the passage 106 is supplied to the first air chamber 80 through the passage 113. Therefore, the rodless cylinder 17 is operated, and the bracket 18 and the weight 16 are raised from the bottom dead center.

[0047] When the bracket 18 is raised from the bottom dead center, as shown in FIG. 7B, the mechanical valve 91 closes the output port 94, and the compressed air in the passage 90 is no longer supplied to the passage 92. When the weight 16 is raised from the bottom dead center, the mechanical valve 48 closes the input port 97, and connects the output port 98 and the drain port 99. However, while the bracket 18 is located below the top dead center, the state of the mechanical valve 100 does not change, and compressed air is not supplied to the passage 102. Therefore, the air operated valve 60 is maintained in a state in which the input port 107 is connected to the output port 108, and the output port 109 is connected to the drain port 110. Therefore, the bracket 18 and the weight 16 continue to rise.

[0048] Furthermore, while the bracket 18 is positioned below the top dead center, compressed air is not supplied to the operating pressure port 150 of the air operated valve 85, and the state of the air operated valve 85 does not change. As a result, compressed air is supplied to the air cylinder 38 via the passages 53 and 145, and the plunger 42 moves from the forward position to the backward position and then stops.

[0049] 8 and 7C, when the bracket 18 and the weight 16 reach the top dead center, the mechanical valve 100 connects the input port 103 and the output port 105. Then, the compressed air in the passage 101 is supplied to the operating pressure port 112 through the passage 102. Therefore, the air operated valve 60 connects the input port 107 and the output port 109, and also connects the output port 108 and the drain port 110. Then, the compressed air in the passage 106 is supplied to the second air chamber 81 through the passage 114, and the compressed air in the first air chamber 80 is discharged from the drain port 110 through the passage 113. Therefore, the bracket 18 is lowered from the top dead center to the bottom dead center.

[0050] On the other hand, when the bracket 18 reaches the top dead center, a part of the compressed air supplied to the passage 102 is supplied to the operating pressure port 150 of the air operated valve 85. Then, the state of the air operated valve 85 is switched, the output port 141 and the drain port 142 are connected, and the input port 140 is closed. Therefore, the compressed air of the air cylinder 38 is discharged to the drain port 142 through the passage 145. Therefore, the plunger 42 of the air cylinder 38 moves from the retreat position to the advance position and stops. That is, the insertion / removal lever 40 engages with the weight 16 located at the top dead center. In this way, the weight 16 is held at the top dead center. After the weight 16 is held at the top dead center as described above, the bracket 18 reaches the bottom dead center and stops as shown in FIG. 8 and FIG. 7D.

[0051] (2nd process) After the bracket 18 is stopped at the bottom dead center, the worker places the package 23 containing the frozen butter 22 on the support table 11 and slides it, and the package 23 enters under the butter hammer 14 and stops. Here, the weight 16 is held at the top dead center, and the butter hammer 14 is lifted up by the tension coil spring of the hammer support mechanism 28. In other words, the mass of the weight 16 and the mass of the butter hammer 14 are not applied to the package 23. The operation of placing the package 23 on the support table 11 and sliding it can be performed smoothly. In addition, when the package 23 is placed on the support table 11, the package detection switch 52 is activated. Therefore, the mechanical valve 86 connects the input port 117 and the output port 118, and closes the drain port 119. Then, the compressed air in the passage 116 is supplied to the passage 115.

[0052] (3rd step) When the operator operates the operation button 45D of the operation panel 45 in the third step, the push button valve 120 connects the input port 121 and the output port 122 and closes the drain port 123. Therefore, as shown in Fig. 7E, the compressed air in the passage 115 is supplied to the operating pressure port 143 via the passages 124 and 130. Then, the state of the air operated valve 85 is switched, the input port 140 and the output port 141 are connected and the drain port 142 is blocked. Therefore, the compressed air in the passage 53 is supplied to the air cylinder 38 through the passage 145, the plunger 42 moves from the forward position to the backward position, and the plunger 42 stops.

[0053] When the plunger 42 is moved to the retreated position, the insertion / removal lever 40 is released from the weight 16, and as shown in FIG. 9, the weight 16 descends by its own weight, that is, falls naturally. The protrusion 29 of the weight 16 enters the hole 27, and the protrusion 29 strikes the butter hammer 14, and the weight 16 stops at the bottom dead center, as shown in FIG. 7F. The butter hammer 14 also moves downward in the vertical direction by a predetermined amount, and strikes the package 23 and the frozen butter 22. Specifically, the protrusion 29 bites into the package 23 and the frozen butter 22, and the frozen butter 22 is destroyed. That is, the frozen butter 22 breaks. Note that when the package 23 is not placed on the receiving plate 13, the package detection switch 52 is not activated, and compressed air is not supplied to the air cylinder 38 even if the operation button 45D is operated. Therefore, the weight 16 is held at the top dead center.

[0054] (4th step) When the weight 16 reaches the bottom dead center, the state of the mechanical valve 48 is switched, and the compressed air in the passage 92 is supplied to the operating pressure port 111 through the passage 96. As a result, the state of the air operated valve 60 is switched, and compressed air is supplied to the first air chamber 80 and discharged from the second air chamber 81, similar to the first step. Therefore, the bracket 18 and the weight 16 rise as shown in FIG. 7G, similar to the first step. Since the automatic button 45C was operated in the first step, in the fourth step, the bracket 18 and the weight 16 rise in the same manner as the first step, without operating the automatic button 45C.

[0055] When the bracket 18 rises from the bottom dead center, the state of the mechanical valve 91 changes, closing the input port 93. Also, when the weight 16 rises from the bottom dead center, the state of the mechanical valve 48 changes, closing the input port 97. However, while the bracket 18 is located below the top dead center, the state of the mechanical valve 100 does not change, and compressed air is not supplied to the passage 102. Therefore, the state of the air operated valve 60 is maintained, and the bracket 18 continues to rise.

[0056] When the bracket 18 and weight 16 reach the top dead center, the state of the mechanical valve 100 changes in the same manner as described above, and compressed air is supplied to the passage 102. Therefore, the state of the air-operated valve 85 changes in the same manner as described above, the insertion / removal lever 40 engages with the weight 16, and the weight 16 is held at the top dead center. After the weight 16 is held at the top dead center, the bracket 18 and bracket arm 19 are lowered according to the same principle as described above. Then, when the bracket arm 19 and bracket 18 reach the bottom dead center, the bracket 18 is stopped at the bottom dead center, as in the second step.

[0057] (5th step) After the bracket 18 is stopped at the bottom dead center, the worker slides and moves the package 23 on the support table 11, and changes the position of the butter hammer 14 relative to the package 23 in a plan view of the support table 11. Then, the worker performs the first to fourth steps to strike the package 23 and the frozen butter 22 again with the butter hammer 14, and then removes the package 23 containing the frozen butter 22 from the support table 11.

[0058] (End step 1) An example of terminating the use of the frozen butter impacting device 10 after the worker removes the package 23 from the support stand 11 will be described based on the final steps 1 to 4. Final step 1 shown in FIG. 10A is performed in a state where the weight 16 is held at the top dead center and the bracket 18 is stopped at the bottom dead center, similar to the state shown in FIG. 7D. In final step 1, compressed air is discharged from the first air chamber 80 and compressed air is supplied to the second air chamber 81. Therefore, the bracket 18 is stopped at the bottom dead center. In addition, compressed air is discharged from the cylinder 38, and the insertion / removal lever 40 is engaged with the weight 16, so that the weight 16 is held at the top dead center. Furthermore, compressed air is not supplied to the passage 102.

[0059] (End step 2) In the final step 2 shown in Fig. 10B, the operator manually turns on the select switch 149. Then, the switching valve 148 connects the passage 102 and the passage 147, and blocks the passage 102 and the passage 101. Next, the operator manually turns on the valve switch fitting 49. Then, the state of the mechanical valve 48 is switched, the input port 97 is connected to the output port 98, and compressed air is supplied to the operating pressure port 111 of the air operated valve 60. Therefore, the state of the air operated valve 60 is switched, the input port 107 is connected to the output port 108, and the output port 109 is connected to the drain port 110. Therefore, compressed air is supplied to the first air chamber 80, and compressed air is discharged from the second air chamber 81, and the bracket 18 is lifted.

[0060] When the bracket 18 is raised, the state of the mechanical valve 91 changes, the input port 93 is closed, and the output port 94 and the drain port 95 are connected. As a result, compressed air is no longer supplied to the operating pressure port 111. However, while the bracket 18 is positioned below the top dead center, compressed air is not supplied to the passage 102. Therefore, the state of the air operated valve 60 is maintained, and the bracket 18 continues to rise.

[0061] (End step 3) 9 and 10C, when the bracket 18 reaches the top dead center, the state of the mechanical valve 100 is switched, the input port 103 and the output port 105 are connected, and the drain port 104 is closed. Then, compressed air is supplied from the passage 101 to the passage 102, and a part of the compressed air in the passage 102 is supplied to the operating pressure port 143 through the passage 147. Therefore, the state of the air operated valve 144 is switched, the input port 140 and the output port 141 are connected, and the drain port 142 is closed. Therefore, compressed air is supplied to the air cylinder 38, the plunger 42 operates against the force of the compression spring, and the insertion / removal lever 40 is released from the weight 16.

[0062] Meanwhile, a portion of the compressed air supplied to the passage 102 is supplied to the operating pressure port 112, switching the state of the air operated valve 60. As a result, compressed air is supplied to the second air chamber 81 and is discharged from the first air chamber 80, causing the bracket 18 to descend from the top dead center. As described above, since the insertion / removal lever 40 is released from the weight 16, the bracket 18 descends with the bracket arm 19 holding the weight 16.

[0063] (End step 4) When the bracket 18 supporting the weight 16 descends from the top dead center, the state of the mechanical valve 100 is switched. Therefore, the compressed air in the passage 102 is discharged to the drain port 104. While the bracket 18 is descending, the states of the air operated valves 60, 85 are not switched. When the bracket 18 reaches the bottom dead center as shown in Figs. 9 and 10D, the weight 16 also reaches the bottom dead center. When the bracket 18 reaches the bottom dead center, the state of the mechanical valve 91 is switched. Therefore, the input port 93 and the output port 94 are connected, and the drain port 95 is closed. Note that the valve switch fitting 49 is manually turned off, and the valve switch fitting 49 is not turned on even if the weight 16 reaches the bottom dead center. After the bracket 18 and the weight 16 are stopped at the bottom dead center in this way, the operator operates the stop button 45B of the operation panel 45 to stop the air compressor 56 and turn off the select switch 149. When the air compressor 56 is stopped, the compressed air is discharged from the air cylinder 38, the plunger 42 moves from the retreated position to the advanced position by the force of the compression spring and stops, and the frozen butter impact device 10 returns to the initial state.

[0064] (Effects of the embodiment) According to the frozen butter impact device 10, the hammer support mechanism 28 connects the butter hammer 14 between the receiving plate 13 and the support base 11 so as to be movable within a predetermined range in the vertical direction. Therefore, when the butter hammer 14 receives an impact force from the weight 16, the butter hammer 14 can descend in a state of contact with the package 23. Therefore, the impact force can be reliably applied to the frozen butter 22 contained in the package 23, and the frozen butter 22 can be broken, that is, split. Furthermore, when the package 23 containing the frozen butter 22 is placed on the support base 11, the vertical dimensional difference between the frozen butter 22 and the package 23 can be absorbed. Furthermore, when the worker places the package 23 on the support base 11 in the second step and slides it to move the package 23 under the butter hammer 14, the weight 16 is held at the top dead center. Moreover, the butter hammer 14 is lifted up by the tension coil spring of the hammer support mechanism 28. In other words, the mass of the weight 16 and the mass of the butter hammer 14 are not applied to the packaging body 23, and the operation of placing the packaging body 23 on the support base 11 and sliding it can be performed smoothly.

[0065] Furthermore, the protrusion 32 of the weight 16 is movable vertically within the hole 27 provided in the receiving plate 13. Therefore, the weight 16 can reliably strike the butter hammer 14. Furthermore, a pipe guide 15 is provided to prevent the weight 16 from moving in a direction intersecting the vertical direction. Therefore, the weight 16 can be prevented from moving in a direction intersecting the vertical direction, and the position at which the frozen butter 22 is struck can be prevented from shifting in a planar direction. Furthermore, the weight support mechanism 20 is attached to the pipe guide 15. Therefore, there is no need to provide a dedicated element for supporting the weight support mechanism 20.

[0066] Furthermore, as shown in FIG. 3, in a plan view of the receiving plate 13 seen from directly above, the multiple support shafts 41 are each arranged on the same circumference centered on the reference position A1. Therefore, the timing at which the two insertion / removal levers 40 engage with the weight 16 and the timing at which they are released can be synchronized. Therefore, the center of the weight 16 can be prevented from tilting relative to the imaginary line B1. Also, as shown in FIG. 3, in a plan view of the receiving plate 13 seen from directly above, the protrusion 32 of the weight 16 is arranged centered on the reference position A1. Therefore, the center of the weight 16 can be prevented from tilting relative to the imaginary line B1, and the position at which the protrusion 32 strikes the packaging body 23 and the frozen butter 22 can be prevented from deviating from the reference position A1.

[0067] (others) An example of the technical meaning of the matters described in this embodiment is as follows. The frozen butter striking device 10 is an example of a frozen object striking device. The package 23 and the frozen butter 22 are examples of striking objects. The support base 11 is an example of a first support base. The receiving plate 13 is an example of a second support base. The weight 16 is an example of a weight. The butter hammer 14 is an example of a hammer. The hammer support mechanism 28 is an example of a hammer support mechanism. The rodless cylinder 17, the bracket 18, and the bracket arm 19 are examples of a lifting mechanism. The rodless cylinder 17 is an example of an actuator operated by air pressure. The bracket 18 and the bracket arm 19 are examples of a movable member. The weight support mechanism 20 is an example of a weight support mechanism. The bracket contact switch 50 is an example of a switch. The hole 27 is an example of a hole in the receiving plate. The pipe guide 15 is an example of a guide member. The insertion / removal lever 40 is an example of an engagement element. The support shaft 41 is an example of a support shaft. The engaging force of the lever 40 with respect to the weight 16 is an example of a "support force applied to the weight."

[0068] This embodiment is not limited to those disclosed using the drawings, and various modifications are possible within the scope of the gist of the present invention. For example, the actuator as the lifting mechanism may be a servo motor operated by electricity instead of a rodless cylinder operated by air pressure. In addition, the detection mechanism for detecting the vertical position of each element may be either a contact detection mechanism or a non-contact detection mechanism. The non-contact detection mechanism includes an optical sensor, a capacitance sensor, a magnetic sensor, etc., and outputs a signal according to the detected position. Furthermore, a control device for processing the signal output from the non-contact detection mechanism and a storage device in which applications, programs, information, data, etc. used by the control device for processing, judgment, and control are stored may be provided. The control device is a computer having an input port, an output port, and a central processing circuit. The control device may also serve as the operation panel 45. The control device processes operation signals such as a start button 45A, a stop button 45B, an automatic button 45C, an operation button 45D, and an end button 45E. The storage device is a non-transitory storage device that can be read and written by the control device. The various valves may be configured as solenoid valves, and the control device may be configured to operate the various valves and switch their states.

[0069] Furthermore, the object to be struck may be an item other than frozen butter, such as a frozen raw material, a frozen ingredient, a consolidated industrial chemical, a sample, etc. Materials described as being made of metal include, for example, stainless steel. The technical meaning of striking an object to be struck with a hammer may be any of the following: destruction, crushing, deformation, and squashing. [Industrial Applicability]

[0070] The present disclosure can be used as a frozen object striking device that strikes a frozen object with a hammer. [Explanation of symbols]

[0071] 10...frozen butter striking device, 11...support stand, 13...receiving plate, 14...butter hammer, 15...pipe guide, 16...weight, 17...rodless cylinder, 18...rodless cylinder bracket, 19...bracket arm, 20...weight support mechanism, 27...hole, 28...hammer support mechanism, 40...insertion / removal lever, 41...support shaft, 50...switch

Claims

1. A frozen object impact device for impacting frozen objects, A first support table on which the frozen object is placed; a second support stand disposed vertically above the first support stand; a weight that is disposed above the second support stand in the vertical direction and that can be raised and lowered along the vertical direction; a hammer provided on the second support table and transmitting a striking force received from the descending weight to the frozen object; a hammer support mechanism provided on the second support base and supporting the hammer between the first support base and the second support base so as to be movable within a predetermined range in a vertical direction; A frozen object impact device having the above structure.

2. In the frozen object impact device according to claim 1, a lifting mechanism that supports the weight and raises and lowers the weight between a top dead center and a bottom dead center in a vertical direction; a weight support mechanism that applies a supporting force to the weight to support it at the top dead center and releases the supporting force to the weight to lower the weight by its own weight; A frozen object impact device having the above structure.

3. In the frozen object impact device according to claim 2, The second support base has a hole passing therethrough in a vertical direction, A frozen object impacting device, wherein a portion of the weight is vertically movable within the hole.

4. In the frozen object impact device according to claim 3, a guide member for preventing the weight from moving in a direction intersecting with a vertical direction is provided upright on the first support base, The weight support mechanism is attached to the guide member.

5. In the frozen object impact device according to claim 2, The lifting mechanism includes: An actuator whose operating state is switched by supplying compressed air; a movable member that is actuated in a vertical direction by the actuator; having a switch is provided that detects the vertical position of the movable member and switches an operation state; The actuator has an operating state that changes depending on the operating state of the switch.

6. In the frozen object impact device according to claim 2, In a plan view of the second support base seen from directly above, the shape of the outer circumferential surface of the weight is a circle centered on a reference position, An annular engagement groove is provided on an outer circumferential surface of the weight, the engagement groove being centered on the reference position in a plan view of the second support base seen from directly above, The weight support mechanism includes: a plurality of engagement elements that engage with the weight to apply a support force and that disengage from the weight to release the support force; A plurality of support shafts each operably supporting the plurality of engagement elements; having A frozen object impacting device, wherein the multiple support shafts are each arranged on the same circumference centered on the reference position when viewed in a plan view from directly above the second support stand.

Images