Dust solidification device molding chamber unit

Abstract

To provide a molding chamber unit of a dust solidification device that can release a rod restrained by an inner wall of a molding hole, and can remove dusts adhering or fixed to the inner wall of the molding hole.SOLUTION: A molding chamber unit of a dust solidification device is provided with a molding hole which is located at a lower part of a storage tank for storing dusts so that dusts in the storage tank flow therein, and compresses dusts in the molding hole by a first rod and a second rod that perform reciprocating-motion by advancing and retreating and face each other. The molding chamber unit comprises a plurality of molding chamber members, the molding hole is formed by the plurality of molding chamber members, and at least one of the molding chamber members is so made as to be removable.SELECTED DRAWING: Figure 2A

Description

[Technical Field]

[0001] The present disclosure relates to a molding chamber unit of a dust solidification device. [Background technology]

[0002] Fumes generated during laser processing, plasma processing, and welding of metal materials can pose serious health risks if inhaled by workers. Therefore, to keep the work environment clean, dust collectors are used to remove dust from the work environment. Furthermore, the dust collected in the dust collector has a low bulk density, making it difficult to handle. Therefore, the dust is compressed, solidified, and processed into an easier-to-handle form (e.g., pellets). Dust that has been processed into an easier-to-handle form can be reused by remelting or other processes.

[0003] Patent Document 1 discloses a dust solidification device with a simple structure that prevents dust from scattering and solidifies the dust. This dust solidification device includes an apparatus main body, a hopper provided in the apparatus main body for storing dust, a molding member having a molding hole provided in the hopper, and a pressure rod that can freely advance into and retreat from the molding hole. In this dust solidification device, the pressure rod advances into the molding hole to solidify the dust filled therein and form a solidified product. The opening of the molding hole is open to the inside of the hopper. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-084052 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the device described in Patent Document 1, dust adheres to the inner wall of the molding hole during the dust solidification operation, and when the dust solidification operation is repeated, the dust adhered to the inner wall of the molding hole accumulates and solidifies. This can cause the rod to become confined within the molding hole, making the dust solidification device prone to malfunction and leaving room for improvement. The present disclosure has been made in light of the above, and aims to provide a molding chamber unit of a dust solidification device that can release the rod that has become confined within the molding hole and remove dust that has adhered or solidified to the inner wall of the molding hole. [Means for solving the problem]

[0006] One aspect of the present disclosure that solves the above-mentioned problems and achieves the object is a molding chamber unit of a dust solidification device. This molding chamber unit of a dust solidification device is disposed below a storage tank that stores dust and has a molding hole through which the dust in the storage tank flows. The dust is compressed in the molding hole by a first rod and a second rod that face each other and reciprocate by advancing and retracting. The molding chamber unit includes multiple molding chamber members, and the molding hole is formed by the multiple molding chamber members, at least one of which is removable. Each rod is located on the axis of the molding hole, and the axial vertical cross section refers to a cross section that intersects the longitudinal axis of the molding hole. The axial direction is the longitudinal axis of each rod, which generally coincides with the longitudinal axis of the molding hole.

[0007] The dust solidification device having the above configuration can release the rod that has been confined within the molding hole and remove the dust that has adhered or stuck to the inner wall of the molding hole, thereby preventing malfunctions in the dust solidification device and enabling quick recovery in the event of malfunction.

[0008] In one embodiment, an opening member communicating with the molding hole is provided outside the molding hole, thereby making it possible to prevent dust from flowing out of the molding hole when the rod is inserted. [Effects of the Invention]

[0009] According to at least one embodiment of the present disclosure, it is possible to release the rod that has been constrained in the forming hole, and to remove dust that has adhered or stuck to the inner wall of the forming hole. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing a schematic configuration of a dust solidification device according to an embodiment. [Figure 2A] FIG. 2 is a perspective view of the molding chamber unit shown in FIG. [Figure 2B] FIG. 2B is an exploded perspective view of the molding chamber unit shown in FIG. 2A. [Figure 3A] FIG. 10 is a perspective view of a molding chamber unit according to a first modified example. [Figure 3B] FIG. 3B is an exploded perspective view of the molding chamber unit shown in FIG. 3A. [Figure 4] 1 is a schematic diagram showing a pressure rod whose axial vertical cross section is a regular hexagon. FIG. [Figure 5] 10 is a vertical axial cross-sectional view showing a state in which a pressure rod having a circular cross-section perpendicular to the axial direction is advanced into a forming hole having a regular hexagonal cross-section perpendicular to the axial direction. FIG. [Figure 6] 10 is a vertical axial cross-sectional view showing a state in which a pressure rod having a regular hexagonal cross-section perpendicular to the axial direction is advanced into a forming hole having a circular cross-section perpendicular to the axial direction. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, several embodiments of the present disclosure will be described with reference to the drawings. However, the dimensions, materials, shapes, relative positions, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples. The terms "upper" and "lower" are based on the state shown in the drawings and are for convenience.

[0012] Fig. 1 is a diagram showing a schematic configuration of a dust solidification device 1 according to this embodiment. The dust solidification device 1 shown in Fig. 1 includes a storage tank (e.g., a hopper) 11 and a dust solidification unit 12 disposed below the storage tank 11.

[0013] The storage tank 11 has an inclined side wall 110 and stores dust that falls from above.

[0014] The dust solidification unit 12 includes a forming member 121 having a forming hole 122, a pressure rod 123 which is a first rod, a closing rod 124 which is a second rod, a discharge hole 125 through which the formed solidified material is discharged, a pressure cylinder 126 which drives the pressure rod 123, and a closing cylinder 127 which drives the closing rod 124. The forming hole 122 is disposed between the pressure rod 123 and the closing rod 124, and is a through-hole into which the pressure rod 123 and the closing rod 124 can be inserted.

[0015] The molding member 121 is a member provided with a molding hole 122 so that dust from the lower part of the storage tank 11 can flow in. The molding hole 122 is disposed between the pressure rod 123 and the closing rod 124, and is a through-hole through which the pressure rod 123 and the closing rod 124 can be inserted, with a first opening 1221 and a second opening 1222 passing through. Here, the axial vertical cross section (cross section transverse to the long axis direction) of the molding hole 122 is circular. Note that each rod is positioned on the axis of the molding hole, and the axial vertical cross section refers to a cross section transverse to the long axis direction of the molding hole. The axial direction is the long axis direction of each rod, which roughly coincides with the long axis direction of the molding hole.

[0016] The pressure rod 123 is a first rod having a circular cross section perpendicular to the axial direction and capable of reciprocating movement, advancing and retreating from a first opening 1221 into the forming hole 122. The closing rod 124 is a second rod having a circular cross section perpendicular to the axial direction and capable of reciprocating movement, advancing and retreating from a second opening 1222 into the forming hole 122, and is a rod that advances a certain distance into the forming hole 122 and stops when forming the solidified material. The pressure rod 123 is driven to reciprocate, advancing and retreating into the forming hole 122, and when it retreats from the forming hole 122, dust at the bottom of the storage tank 11 flows into the forming hole 122. The pressure rod 123 advances into the forming hole 122 and pushes in the dust that has flowed into the forming hole 122. In the forming hole 122, the dust is pressed and compressed by the pressure surfaces of the pressure rod 123 and the closing rod 124, which are opposed to each other, to form a pellet-shaped solidified material.

[0017] The discharge hole 125 is a hole for dropping and discharging the molded solidified material. The molded solidified material is sandwiched between the pressure rod 123 and the closing rod 124, and transported to the discharge hole 125 and discharged. The pressure cylinder 126 is a drive source for reciprocating the pressure rod 123. The closing cylinder 127 is a drive source for reciprocating the closing rod 124.

[0018] It should be noted that the present disclosure is not limited to the embodiment shown in FIG. 1, and the positions of the pressure rod 123 and the pressure cylinder 126 and the positions of the closing rod 124 and the closing cylinder 127 may be interchanged.

[0019] The operation of the dust solidification device 1 shown in Fig. 1 is controlled by a control unit (not shown). Specifically, the control unit (not shown) outputs operation commands to the pressurizing cylinder 126 and the closing cylinder 127 to control the operations of the pressurizing rod 123 and the closing rod 124.

[0020] 2A is a perspective view of the molding member 121 shown in FIG. 1, showing a perspective view from the first opening 1221 side. FIG. 2B is an exploded perspective view of the molding member 121 shown in FIG. 2A. The molding member 121 is composed of a first molding chamber member 201 and a second molding chamber member 202. The first molding chamber member 201 is provided with a member insertion hole 210 and a sealing portion 211, into which the second molding chamber member 202 is inserted. The second molding chamber member 202 is provided with an insertion portion 220 and a sealing portion 221. The molding hole 122 is formed in the molding member 121 by inserting the insertion portion 220 into the member insertion hole 210. The sealing portion 211 and the sealing portion 221 are members for preventing dust from leaking out of the molding member 121.

[0021] The molding chamber unit of the dust solidification device 1 according to this embodiment is not limited to the molding member 121 shown in FIG. 2A.

[0022] (Variation 1) FIG. 3A is a perspective view of a molding member 121a according to a first modified example, viewed from the first opening 1221 side. FIG. 3B is an exploded perspective view of the molding member 121a shown in FIG. 3A. The molding member 121a is composed of a first molding chamber member 201a and a second molding chamber member 202. The first molding chamber member 201a differs from the first molding chamber member 201 shown in FIG. 2A in that the first opening 1221 and the second opening 1222 each have a plate-shaped opening member 213 with a communication hole 212. The communication hole 212 communicates with the first opening 1221 and the second opening 1222. As shown in FIGS. 3A and 3B, the plate-shaped opening member 213 with the communication hole 212 allows the molding hole 122 and the rods 123 and 124 to be positioned appropriately. The plate-shaped opening member 213 having the communication hole 212 provided therein may be provided in each of the first opening 1221 and the second opening 1222, or may be provided in only one of them.

[0023] (Other variations) In this embodiment, the shaping hole 122, the pressure rod 123, and the closing rod 124 have circular cross sections perpendicular to the axial direction, but the present invention is not limited to this. As a modification of this embodiment, the shaping hole 122, the pressure rod 123, and the closing rod 124 may have polygonal cross sections perpendicular to the axial direction, such as a regular hexagon. FIG. 4 is a schematic diagram showing a pressure rod 123c having a regular hexagonal cross section perpendicular to the axial direction. In FIG. 4, the pressure rod 123c is inserted into the shaping hole 122a, which has a regular hexagonal cross section perpendicular to the axial direction. Although FIG. 5 shows the pressure rod 123c, the closing rod 124 may also have a similar shape.

[0024] Furthermore, the vertical axial cross section of the rod and the vertical axial cross section of the forming hole do not have to coincide. Figure 5 is a vertical axial cross section showing a state in which a pressure rod 123 having a circular vertical axial cross section has advanced into a forming hole 122a having a regular hexagonal vertical cross section, and Figure 6 is a vertical axial cross section showing a state in which a pressure rod 123c having a regular hexagonal vertical cross section has advanced into a forming hole 122 having a circular vertical axial cross section.

[0025] In addition, in this embodiment, a molding chamber unit is formed by two molding chamber members, but the present invention is not limited to this. A molding chamber unit may be formed by three or more molding chamber members. However, the molding hole must be formed by multiple molding chamber members, and at least one molding chamber member must be removable.

[0026] (Summary of the embodiment) According to the dust solidification device 1, the molding members 121, 121a, and 121b each include multiple molding chamber members, and the molding hole 122 is formed by multiple molding chamber members 201, 201a, 201b, and 202. At least one molding chamber member is removable, and the molding chamber unit is disassembled. This allows dust adhering or adhering to the inner wall of the molding hole to be removed. Furthermore, if a rod becomes confined within the molding hole, the rod can be released. As a result, the occurrence of operational abnormalities in the dust solidification device 1 is suppressed, and even if an operational abnormality does occur, the device can be quickly restored.

[0027] By providing the plate-shaped opening member 213 having the communication hole 212 communicating with the shaping hole 122, it is possible to prevent dust from flowing out of the shaping hole 122 when the rods 123, 124 enter. [Explanation of symbols]

[0028] 1 dust solidification device, 11 storage tank, 110 inclined side wall, 12 dust solidification section, 121, 121a, 121b molding member, 122 molding hole, 1221 first opening, 1222 second opening, 123, 123c pressure rod, 124 closing rod, 125 discharge hole, 126 pressure cylinder, 127 closing cylinder, 201, 201a, 201b first molding chamber member, 210 member insertion hole, 211 sealing member, 212 communication hole, 213 opening member, 202 second molding chamber member, 220 insertion member, 221 sealing member

Claims

[Claim 1] A molding chamber unit of a dust solidification device, the molding chamber unit being disposed below a storage tank for storing dust, and having a molding hole through which the dust in the storage tank flows, and the dust being compressed in the molding hole by a first rod and a second rod opposed to each other and reciprocating by advancing and retreating, The molding chamber unit includes a plurality of molding chamber members, the molding cavity is formed by the plurality of molding chamber members, and at least one of the molding chamber members is removable; a pair of opening members having communication holes communicating with the molding holes and allowing the first rod or the second rod to advance and retreat are provided on an outer wall of the molding chamber unit; Dust solidification device molding chamber unit.

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