JP2016145610A - Feeding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feeding device capable of stably and efficiently feeding a feed material.SOLUTION: A feeding device comprises: a tube 3 forming a feed passage of a feed material and deformable into a state of permitting flowing of the feed material and into a state of shutting off flowing of the feed material; and valve devices 4A, 4B comprising two or more valve elements 41a, 41b that are arranged respectively connected to the outer periphery of the tube 3 and are provided to be capable of relatively approaching to each other and separating from each other, making the two or more valve elements 41a, 41b relatively approach to each other to squeeze the tube 3 into the state of shutting off flowing of the feed material, and relatively separating the two or more valve elements 41a, 41b to pull the tube 3 radially outward into the state of permitting flowing of the feed material.SELECTED DRAWING: Figure 1B

Description

  The present invention relates to a supply device that supplies a supply material to a supply target device.

  In recent years, lithium ion secondary batteries have been applied to hybrid vehicles and electric vehicles. In order to obtain a slurry of the active material, the electrode of the lithium ion secondary battery is first kneaded with a powder of the active material in a solution of the thickener, and then the slurry of the active material is a base such as an aluminum foil. It is manufactured by applying to a material and drying. In order to keep the battery performance constant, the active material powder and the like need to be quantitatively supplied to the kneading device by a supply device equipped with a valve device.

  For example, Patent Documents 1, 2, and 3 describe a supply device including a valve that closes a supply path by crushing a tube forming a supply path made of an elastic body in a direction perpendicular to the axial direction of the tube. ing. The portion of the tube described in Patent Literatures 1 and 2 is formed such that a cross section in a direction perpendicular to the axial direction of the tube (hereinafter referred to as a tube cross section) has a rhombus shape. Moreover, the protrusion part of the tube of patent document 3 is formed with several protrusion on the inner peripheral surface of a tube so that the inside of a tube may be obstruct | occluded when it is crushed. As a result, the tube is easily crushed at a low load, so that compressive stress and tensile stress generated on the inner and outer peripheral surfaces of the crushed and bent portion can be suppressed, and cracks are less likely to occur on the inner and outer peripheral surfaces. Therefore, each supply apparatus can supply a supply material stably.

Japanese Utility Model Publication No. 6-1944 JP 2005-207470 A International Publication No. 2003/106870

  The tubes described in Patent Documents 1 and 2 are formed so that the tube cross section has a rhombus shape, and the tube described in Patent Document 3 includes a plurality of protrusions on the inner peripheral surface. There is a problem that the area becomes smaller than that of the shape and the supply efficiency of the supply material is lowered.

  This invention is made | formed in view of such a situation, and it aims at providing the supply apparatus which can supply a supply material stably and efficiently.

  The supply apparatus according to the present invention forms a supply path for a supply material, and is a tube that can be deformed into a state that permits the flow of the supply material and a state that blocks the supply material, and two or more that are connected to the outer periphery of the tube. The valve body is provided with two or more valve bodies relatively close to each other and the tube is crushed so as to block the flow of the supply material, and the two or more valve bodies are relatively spaced apart to provide the supply material. And a valve device that permits the circulation of.

  Since the valve body is connected to the tube, the inside and the inside of the tube can be reliably closed and opened by approaching and separating. Therefore, the tube can be restored to a shape close to the shape before crushing the cross section of the tube when opened, and a reduction in the supply efficiency of the supply material can be suppressed.

Embodiment of the present invention: It is a schematic configuration diagram of a supply device viewed from a direction perpendicular to the supply direction. It is AA sectional view taken on the line of FIG. 1A, and is sectional drawing seen from the axial direction of the tube. It is AA sectional view taken on the line of FIG. 1A, and is sectional drawing for demonstrating the shape of a tube cross section. It is a flowchart for demonstrating supply operation | movement by a supply apparatus. It is a figure which shows the 1st step of supply operation | movement, and shows the state which closed the 2nd valve apparatus. It is AA sectional view taken on the line of FIG. 3A, and it is sectional drawing seen from the axial direction of the tube. It is a figure which shows the ratio of the cross-sectional area of the polygonal shape with respect to circular shape according to the kind of polygon. It is a figure which shows the length of one side of the polygon which can be connected with a valve body according to the kind of polygon. It is a figure which shows the state which filled the supply material to the 2nd valve apparatus by showing the 2nd step of supply operation | movement and opening a 1st valve apparatus. It is a figure which shows the 3rd stage of supply operation | movement, and shows the state which closed the 1st valve apparatus. It is a figure which shows the 4th step of supply operation | movement, and shows the state which opened the 2nd valve apparatus and supplied the supply material. It is a figure which shows the state which showed the 5th step of supply operation | movement and closed the 2nd valve apparatus and prepared for the next supply.

(Configuration of supply device)
The supply apparatus of this embodiment is demonstrated with reference to FIG. 1A, FIG. 1B, FIG. 3A, and FIG. 3B. As shown in FIG. 1A, the supply device 1 is, for example, kneading an active material for producing an electrode of a lithium ion secondary battery or the like (corresponding to the “supply material” of the present invention) with a thickener solution or the like. This is a device that is supplied to the kneading device 9, and includes a hopper 2, a tube 3, a first valve device 4A, a second valve device 4B, a drive device 5, and the like.

  The hopper 2 is formed in a funnel shape with a metal such as stainless steel, and is provided with an inlet 21 for feeding an active material or the like at the upper part, and for discharging the active material or the like charged from the upper part at the lower part. A discharge port 22 is provided.

  The tube 3 is formed in a hollow cylindrical shape with transparent silicone rubber or silicone resin, and is attached in a state where it is suspended from the discharge port 22 of the hopper 2 as a supply path for the active material from the hopper 2 to the kneading device 9. The The reason why the tube 3 is formed of transparent silicon rubber or the like is that it can be visually confirmed whether the active material or the like has been reliably supplied from the hopper 2 through the tube 3 to the kneading device 9. The reason why the tube 3 is formed of silicon rubber or the like is that the active material or the like hardly adheres to the inner peripheral surface of the tube 3, so that the quantitative supply can be reliably performed. Furthermore, the tube 3 made of silicon rubber or the like is not adversely affected even if it is mixed with the active material due to defects.

  As shown in FIGS. 1A and 1B, the first and second valve devices 4 </ b> A and 4 </ b> B are arranged at predetermined intervals in the axial direction of the tube 3 in the middle of the tube 3, and are arranged along the axial direction of the tube 3. It is fixed on the fixed plate B. As will be described in detail later, the first and second valve devices 4A and 4B are formed by sandwiching both sides of the outer periphery of the tube 3 in a direction perpendicular to the axial direction of the tube 3 and alternately crushing the tube 3 to thereby active material material Etc. (FIGS. 3A and 3B show a state in which the tube 3 is crushed by the second valve device 4B). In this embodiment, the tube cross section of the tube 3 is circular, but as shown in FIG. 1B, the tube cross section of the portion where the first and second valve devices 4A and 4B are mounted is transformed into a hexagonal shape. ing. Therefore, before explaining the configuration of the first and second valve devices 4A and 4B, it will be explained that the tube cross section is formed in a hexagonal shape.

  As described in the background art, cracks are likely to occur on the inner and outer peripheral surfaces of the portion where the tube is crushed and bent due to large compressive stress and tensile stress. In order to eliminate this phenomenon, the tube cross section is conventionally formed in a rhombus shape, and a plurality of protrusions are formed on the inner peripheral surface of the tube. However, the tube cross section is smaller than the circular cross section. And the supply efficiency of the feed material is reduced. Therefore, the optimum tube cross-sectional shape that can suppress crack generation and supply efficiency reduction was examined.

  As for the tube cross section, in order to facilitate the control of the first valve device 4A (second valve device 4B), it is desirable that the first valve device 4A (second valve device 4B) can be uniformly crushed, polygonal or elliptical. Shape is conceivable. In the case where the tube cross section is formed in a polygonal shape, when the tube is crushed, it is bent at the vertex of the polygon, so that the degree of stress generation can be reduced. Furthermore, when the tube is crushed, the inner surfaces of the corners of the bent portion are easily brought into close contact with each other. Therefore, it is more advantageous than the case where the tube cross section is formed in an elliptical shape.

  The degree of occurrence of stress in the tube cross section is reduced as the vertex angle of the polygon is smaller. On the other hand, the cross-sectional area of the tube cross-section increases as the number of polygonal vertices increases (as the polygonal apex angle increases). Further, when the tube cross section is polygonal, it is considered that restoration after being crushed compared to the circular shape is difficult only by the elastic force of the tube 3, and the first valve device 4A (second valve device 4B) is used for restoration. Is desirable. Therefore, when the first valve device 4A (second valve device 4B) is arranged so as to sandwich both sides of the outer periphery of the tube 3, both sides of the outer periphery of the tube 3 are connected to the first valve device 4A (second valve device). 4B) must be connectable. And in order to make the crushing and restoration of the tube 3 more reliable, the longer the connection length with the first valve device 4A (second valve device 4B) in the polygonal tube cross section, the better. The polygonal shape is preferably line symmetric with respect to the center line between the connections.

  In FIG. 4A, when the area ratio of a circle is 100%, the area ratio (%) when the circle is transformed into a regular square, regular hexagon, regular octagon, regular decagon, regular dodecagon, regular square. Indicates. As is clear from FIG. 4A, the area reduction rate with respect to the circle decreases as the number of vertices increases. FIG. 4B shows the connection length (one side) when the circle is transformed into a regular square, regular hexagon, regular octagon, regular decagon, regular dodecagon, regular decagon without changing the circumference of the circle. Length). In addition, in the case of regular tetragon, regular octagon, and regular dodecagon, when connected to the first valve device 4A (second valve device 4B), each shape is not line-symmetric with respect to the center line between the connections. Is set to 0. As is clear from FIG. 4B, the connection length increases as the number of vertices decreases. From the above, a regular hexagon, a regular decagon, and a regular dodecagon are selected as the polygonal shape.

  These two opposing sides of the polygonal shape are formed by being connected to the first valve device 4A (second valve device 4B). The remaining sides must be formed with a jig. In the case of a regular hexagon, a jig (a pair of clamping members 42a and 42b in FIG. 1B) is provided for gripping both outer peripheral sides of the tube 3 in a direction perpendicular to the clamping direction by the first valve device 4A (second valve device 4B). Can be formed. However, in the case of the regular decagon and the regular quadrilateral, a jig for gripping the outer periphery of the tube 3 is further required, and the jig 3 interferes with the first valve device 4A (second valve). It becomes difficult to crush completely with the device 4B). Therefore, the tube cross section is preferably hexagonal. The hexagonal shape includes not only a regular hexagon but also a hexagonal shape in which the sides of the connecting portion are longer than the other sides and the other sides have the same length.

Next, the configuration of the first and second valve devices 4A and 4B will be described. Since the first valve device 4A has the same configuration as the second valve device 4B, the first valve device 4A will be described below, and the same configuration as the first valve device 4A in the second valve device 4B is the same. A number is attached and detailed explanation is omitted.
As shown in FIGS. 1A and 1B, the first valve device 4A includes a pair of valve bodies 41a and 41b, a pair of clamping members 42a and 42b, a pair of air cylinders 43 and 43, and the like.

  The pair of valve bodies 41a and 41b are formed in a rectangular parallelepiped shape, and are disposed to face each other with the tube 3 sandwiched in a direction perpendicular to the axial direction. Then, one surface of the pair of valve bodies 41a and 41b is connected to the outer peripheral surface of the tube 3, that is, bonded in a plane, and the surface opposite to the one surface is at the tip of the rods 43a and 43a of the air cylinders 43 and 43, respectively. Fixed. In the following description, portions bonded to one surface of the pair of valve bodies 41a and 41b by planes are referred to as connecting portions 32a and 32b. The pair of valve bodies 41 a and 41 b are provided so as to be able to approach and separate by the operation of the pair of air cylinders 43 and 43 by the drive device 5.

  The pair of valve bodies 41a and 41b approach and crush the tube 3 toward the inner peripheral side of the tube 3, thereby closing the tube 3 and blocking the flow of the active material and the like. In addition, the pair of valve bodies 41a and 41b are separated to pull the tube 3 to the outer peripheral side of the tube 3, thereby opening the inside of the tube 3 and permitting the flow of the active material or the like. The tube 3 made of silicon rubber or the like is less stretchable and difficult to deform than a tube made of butadiene rubber or the like, and further, since the tube cross section is formed in a hexagonal shape, it is harder to restore after being crushed than a circular shape. The tube 3 is forcibly crushed toward the inner peripheral side of the tube 3 by approaching the pair of valve bodies 41a and 41b, and the tube 3 is forcibly pulled toward the outer peripheral side of the tube 3 by separating them.

  As shown in FIG. 1B, the pair of sandwiching members 42a and 42b includes tube portions that are 90 degrees out of phase in the circumferential direction with respect to the pair of connecting portions 32a and 32b, respectively, and each has a hexagonal cross section. It is a member to be formed. That is, the pair of sandwiching members 42a and 42b is a member that forms bent portions 31a and 31b that are bent so as to protrude from the outer peripheral side (from the inner peripheral side) of the tube 3 in the tube portion, and the tube section is formed in a hexagonal shape. is there.

  More specifically, as shown in FIG. 1C, the planar adhesion parts of the pair of valve bodies 41a and 41b, that is, the coupling parts 32a and 32b, and the clamping parts by the pair of clamping members 42a and 42b, that is, the bent part 31a. , 31b and four tube portions 33a, 33b, 33c, 33d between the circumferential directions are formed in a planar shape. Thereby, the tube cross section has two bent portions 31a and 31b, one end 34 in the circumferential direction and the other end 35 in the circumferential direction of the connecting portion 32a (plane portion) connected to one valve body 41a, and the other valve body 41b. It becomes the hexagon which makes the circumferential direction one end 36 and the circumferential direction other end 37 of the connection part 32b (plane site | part) connected with a vertex. Thereby, since the area of a tube cross section can be ensured, suppression of a supply efficiency fall can be aimed at.

  Furthermore, in this embodiment, the circumferential direction length of the connection parts 32a and 32b connected with each of a pair of valve bodies 41a and 41b in the tube 3, the circumferential direction one end of the connection part 32a connected with one valve body 41a 34 and one bent portion 31a in the circumferential direction, the connecting portion 32a connected to one valve body 41a in the circumferential direction between the other end 35 and the other bent portion 31b, and the other valve body 41b. The circumferential length of one end portion 36 and one bent portion 31a of the connecting portion 32b connected to each other, and the other end portion 37 and the other bent portion of the connecting portion 32b connected to the other valve body 41b. The circumferential length with 31b is the same. Thereby, since the cross section of the tube becomes a regular hexagon, the area of the cross section of the tube can be ensured to the maximum, so that it is possible to further suppress the reduction in supply efficiency.

  When the bent portions 31a and 31b are not formed by the pair of sandwiching members 42a and 42b, large compressive stress and tensile stress are applied to the inner and outer peripheral surfaces of the bent portions when the pair of valve bodies 41a and 41b are crushed. Arise. For this reason, if the tube 3 is repeatedly crushed, there is a possibility that a crack will occur on the inner and outer peripheral surfaces of the bent portion. Since the pair of clamping members 42a and 42b sandwich the bent portion in advance to form the bent portions 31a and 31b, the pair of valve bodies 41a and 41b are connected to the tube 3 as shown in FIGS. 3A and 3B. Even if the crushing is repeated, the generation of cracks in the inner and outer peripheral surfaces of the bent portions 31a and 31b can be suppressed. In actual measurement, the stress of the bent portions 31a and 31b is reduced to 1/8 of the bent portion when a tube having a circular cross section is crushed.

  As shown in FIGS. 1A and 1B, the pair of clamping members 42 a and 42 b includes two plates 421 and 422 that sandwich the outer periphery of the tube 3 and bolts 423 that fasten the two plates 421 and 422 to each other. Prepare. Since such a pair of clamping members 42a and 42b is configured to be clamped from the outside of the tube 3, the clamping portion can be freely moved, that is, finely adjusted according to the deformation state of the tube 3.

(Supply operation)
Next, the supply operation by the supply apparatus 1 will be described with reference to FIGS. 2, 3A, 3B, and FIGS.
Here, the inside of the hopper 2 is in an empty state, and the first and second valve devices 4A and 4B are in an open state, that is, the pair of valve bodies 41a and 41b is connected to the tube 3 by the operation of the pair of air cylinders 43 and 43. It is assumed that the inside of the tube 3 is opened by pulling outward in the radial direction.

  The driving device 5 keeps the upper first valve device 4A in the open state and closes the lower second valve device 4B (step S1 in FIG. 2). Thereby, as shown to FIG. 3A and 3B, the tube 3 is crushed by radial direction with a pair of valve body 41a, 41b of the 2nd valve apparatus 4B. At this time, since the inner peripheral surface of the tube 3 on the one valve body 41a side and the inner peripheral surface of the tube 3 on the other valve body 41b side are in close contact with each other, no gap is generated in the tube 3.

  The driving device 5 drives an unillustrated charging device for the active material V or the like to input the active material V or the like into the hopper 2 (step S2 in FIG. 2). Thereby, as shown in FIG. 5, the inside of the tube 3 is filled with the active material V or the like up to the closed portion of the second valve device 4B. At this time, since there is no gap at the closed position of the second valve device 4B in the tube 3, the active material V or the like does not fall below the second valve device 4B.

  The drive device 5 maintains the closed state of the lower second valve device 4B, and closes the upper first valve device 4A (step S3 in FIG. 2). Thereby, as shown in FIG. 6, the tube 3 is crushed in the radial direction by the pair of valve bodies 41a and 41b of the first valve device 4A. At this time, since the inner peripheral surface of the tube 3 on the one valve body 41a side and the inner peripheral surface of the tube 3 on the other valve body 41b side are in close contact with each other, no gap is generated in the tube 3.

  The driving device 5 maintains the closed state of the upper first valve device 4A and opens the lower second valve device 4B (step S4 in FIG. 2). Accordingly, as shown in FIG. 7, the active material V or the like V between the first and second valve devices 4A and 4B in the tube 3 drops downward from the second valve device 4B and is supplied to the kneading device 9. The At this time, since there is no gap at the closed position of the first valve device 4A in the tube 3, the active material V or the like does not fall below the first valve device 4A. Therefore, the kneading device 9 is supplied with a constant amount of active material V or the like V, which is substantially the same as the integral of the radial cross-sectional area of the tube 3 and the length between the first and second valve devices 4A and 4B.

  The driving device 5 determines whether or not to continue supplying the active material V or the like depending on the operation status of the kneading device 9 or the inventory status of the active material V or the like in the previous stage to be put into the hopper 2 (FIG. 2). Step S5), if it is determined that the supply of the active material V or the like continues (Step S5 in FIG. 2: Yes), it is determined whether or not the active material V or the like remains in the hopper 2 (FIG. 2). Step S6). If it is determined that the active material V or the like does not remain in the hopper 2 (step S6: No in FIG. 2), the driving device 5 returns to step S1 and repeats the above-described processing.

On the other hand, when the drive device 5 determines in step S6 that the active material V or the like remains in the hopper 2 (step S6: Yes in FIG. 2), the lower second valve device 4B is closed. (Step S7 in FIG. 2). Thereby, as shown in FIG. 8, a space is formed between the first and second valve devices 4A and 4B in the tube 3. Then, the driving device 5 opens the upper first valve device 4A (step S8 in FIG. 2). Thereby, as shown in FIG. 5, the inside of the tube 3 is filled with the active material V or the like up to the closed portion of the second valve device 4B. Thereafter, the driving device 5 returns to step S3 and repeats the above-described processing.
On the other hand, if it is determined in step S5 that the supply of the active material V or the like is not continued (step S5: No in FIG. 2), the driving device 5 ends all the processes.

(effect)
The supply device 1 of the present embodiment forms a supply path for a supply material, and is arranged to be connected to an outer periphery of the tube 3 and a tube 3 that can be deformed into a state where the supply material is allowed to flow and a state where it is blocked. Two or more (two in this example) valve bodies 41a and 41b are provided so as to be relatively close to and away from each other, and two or more (two in this example) valve bodies 41a and 41b are relatively brought close to each other. By crushing 3, the flow of the supply material is blocked, and two or more (two in this example) valve bodies 41 a, 41 b are relatively separated to pull the tube 3 toward the outer periphery of the tube 3. Valve devices 4A and 4B that allow the supply material to flow.

Since the valve bodies 41a and 41b are connected to the tube 3, the inside of the tube 3 can be reliably closed and opened by approaching and separating. Therefore, the tube 3 can be restored to a shape close to the shape before crushing the cross section of the tube when opened, and a decrease in the supply efficiency of the supply material can be suppressed.
Further, since the tube 3 is connected to each of the valve bodies 41a and 41b in a plane, the connecting portions 32a and 32b are hardly peeled off, and the inside of the tube 3 can be reliably closed and opened.
Further, when the inside of the tube 3 is closed and opened, the plane connected to the valve elements 41a and 41b of the tube 3 is moved, so that the tube 3 is closed earlier than a case where one point on the outer peripheral surface of the tube 3 is pushed and closed. Even when the tube is opened, a tube cross section effective for the flow of the feed material can be secured quickly.
Moreover, since valve body 41a, 41b is adhere | attached on the outer peripheral surface of the tube 3, the tube 3 and valve body 41a, 41b can be connected easily.

  The valve devices 4A and 4B include a pair of valve bodies 41a and 41b that are arranged to face each other with the tube 3 interposed therebetween. The tube 3 is a flat tube 3 that is crushed by the pair of valve bodies 41a and 41b. At both ends of the long axis in the cross section of Fig. 2, there are bent portions 31a and 31b that are bent so as to protrude toward the outer peripheral side of the tube 3 (from the inner peripheral side). Thereby, even if a pair of valve bodies 41a and 41b approach and separate, since the big compressive stress and tensile stress do not arise in the inner and outer peripheral surface of the bending parts 31a and 31b of the tube 3, generation | occurrence | production of a crack can be prevented. .

In addition, since the valve device 4 includes the clamping members 42a and 42b that sandwich the formation portion of the bent portion 31 in order to form the bent portions 31a and 31b, the bent portions 31a and 31b can be easily formed.
Moreover, since the clamping members 42a and 42b are provided so as to be freely movable as the tube 3 is deformed, the formation of the bent portions 31a and 31b can be easily finely adjusted.
Moreover, since the tube 3 is formed in a planar shape between the circumferential direction between the portions 32a and 32b connected to the pair of valve bodies 41a and 41b and the bent portions 31a and 31b, the pair of valve bodies 41a and 41b approach each other. When it does, the inside of the tube 3 can be obstruct | occluded by making the inner periphery of the planar tube parts 33a and 33d, 33b, and 33c which oppose closely_contact | adhere.

  The tube 3 is connected to each of the pair of valve bodies 41a and 41b in a plane, and the tube 3 is connected to one of the two bent portions 31a and 31b and the pair of valve bodies 41a and 41b (connection). The circumferential end 1 and the other circumferential end 35 of the portion 32a) and the circumferential end 36 and the other circumferential end 37 of the planar portion (connecting portion 32b) connected to the other of the pair of valve bodies 41a and 41b are apexes. It is formed into a hexagon. Thereby, since the area of a tube cross section can be ensured, suppression of a supply efficiency fall can be aimed at.

  Further, in the tube 3, the circumferential length connected to each of the pair of valve bodies 41a and 41b (between the circumferential one end 34 and the other circumferential end 35, between the circumferential one end 36 and the other circumferential end 37). Is formed in the same manner, and the connecting portions of the valve bodies 41a and 41b and the circumferential lengths of the bent portions 31a and 31b (between the circumferential one end 34 and the bent portion 31a, between the circumferential other end 35 and the bent portion 31b, The circumferential direction one end 36 and the bent portion 31b, and the circumferential other end 37 and the bent portion 31a) are formed in the same manner. Thereby, since the cross section of the tube becomes a regular hexagon, the area of the cross section of the tube can be ensured to the maximum, so that it is possible to further suppress the reduction in supply efficiency.

In the supply device 1 of the above-described embodiment, the first and second valve devices 4A and 4B are configured to crush the tube 3 toward the inner peripheral side of the tube 3 with two (a pair) valve bodies 41a and 41b. However, it is good also as a structure which crushes the tube 3 to the inner peripheral side of the tube 3 with three or more valve bodies.
Moreover, although 1st, 2nd valve apparatus 4A, 4B was set as the structure provided with the air cylinders 43 and 43, it is good also as a structure provided with an electric cylinder or a hydraulic cylinder.
Moreover, although the clip was used as the clamping member 42, a binding device, a binding band, an adhesive, or the like can be used.
Moreover, although the apparatus which supplies the powder of V, such as active material, was demonstrated, since the tube 3, such as a silicon rubber, is used, it is also possible to supply the liquid containing the solvent in which a butadiene rubber etc. melt | dissolve. .

DESCRIPTION OF SYMBOLS 1: Supply apparatus 2: Hopper 3: Tube 31a, 31b: Bending part 32a, 32b: Connection part 4A: First valve apparatus 4B: Second valve apparatus 5: Drive apparatus 41a, 41b: Valve body, 42a, 42b: clamping member, 43: air cylinder

Claims (4)

A tube that forms a supply path for the supply material and is deformable into a state that permits the flow of the supply material and a state that blocks the supply material;
Provided with two or more valve bodies connected to the outer periphery of the tube, respectively, the flow of the supply material is blocked by crushing the tube by relatively approaching the two or more valve bodies And a valve device for allowing the supply material to flow by relatively separating the two or more valve bodies;
A supply device comprising:   The supply device according to claim 1, wherein the tube is connected to each of the two or more valve bodies in a plane.   The supply device according to claim 1, wherein the tube has bent portions protruding toward an outer peripheral side of the tube at both ends of a long axis in a cross section of the flat tube that is crushed by the valve body. The tube is connected to each of the valve bodies in a plane,
The supply device according to claim 3, wherein the tube is formed in a hexagonal shape with two bent portions and an end of a plane connected to the valve body as a vertex.

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