Plate and base with casters

Abstract

To provide a base with casters that reduces the load imposed on the transportation of a workpiece. [Solution] The base 100 has a support plate surface portion 110 with multiple casters 120 arranged vertically and horizontally on its underside, and is made of a laminated plate member which is a plate material in which multiple plate bodies 111 are stacked on top of each other. Specifically, the laminated plate member which makes up the support plate surface portion 110 is made of two metal plate bodies 111 of the same material and thickness riveted together with rivets 112 which are fasteners. Therefore, it is possible to make the curvature of the plate body 111 on the work side and the plate body 111 on the caster 120 side different when deflected, and it is possible to distribute and apply an approximately equal load to all of the casters 120.

Description

[Technical Field]

[0001] The present invention relates to a base with casters that supports plates and workpieces. [Background technology]

[0002] Conventionally, in processing devices that process workpieces by applying vibrations to them, such as casting sand removal devices and press devices, it is common for work to be performed inside the machine frame, as disclosed in Patent Document 1, for example. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 50-117475 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the machine frame is composed of walls and pillars, and has been considered by those skilled in the art to play a role in fixing and supporting the position of processing equipment and workpieces. Therefore, until now, the idea of ​​giving the machine frame itself the function of reducing noise and vibration has not been proposed.

[0005] Therefore, the present invention aims to provide a board material that can be used as a machine frame because it can reduce noise and vibration, and a base with casters made of said board material. [Means for solving the problem]

[0006] The present invention is a plate material that can suppress the transmission of vibrations transmitted from one side along the plate thickness direction to the other side, characterized in that it is made up of multiple metal plates made of the same material and thickness stacked on top of each other, and is composed of a laminated plate member in which the stacked plates are fastened together by plastically deforming fasteners that penetrate the plates.

[0007] In such a configuration, when vibrations are repeatedly transmitted to the laminated plate member, the laminated plate member bends left and right, flexes, and vibrates slightly, and it is presumed that each plate member, while being constrained by the fasteners, is curved with a different curvature from the others. This results in a more complex vibration transmission structure and provides vibration absorption capabilities.

[0008] Furthermore, a caster-equipped pedestal for transporting workpieces is proposed, which comprises a support plate portion having a plurality of casters attached to its underside, and a support column portion for supporting the workpiece, which is provided on the upper surface of the support plate portion, and which is characterized in that the support plate portion is made of the above-mentioned plate material.

[0009] Furthermore, it is preferable that the support plate surface portion has through holes formed along the thickness direction of the plurality of plate bodies, and when the plurality of plate bodies are stacked in the thickness direction, rivets as the fastening bodies are inserted into the through holes and the stacked plate bodies are crimped together by being riveted with the rivets.

[0010] In this configuration, the support plate portion flexes and curves when supporting a heavy workpiece, but because the support plate portion is made of laminated plate members, the curvature of the plate body on the work side and the plate body on the caster side can be made different, which allows the load on each caster to be suitably distributed and each caster to properly contact the ground, allowing the casters to roll efficiently.

[0011] Also proposed is a machine frame having a wall portion to which vibrations generated by a predetermined vibration source are transmitted, the wall portion being made of the plate material.

[0012] In such a configuration, when vibrations are repeatedly transmitted to the laminated plate member, the laminated plate member bends left and right, flexes, and vibrates slightly, and it is presumed that each plate member, while being constrained by the fasteners, is curved with a different curvature from the others. This results in a more complex vibration transmission structure, and the wall surface portion is endowed with a vibration absorption function.

[0013] Also proposed is a processing device support machine frame that supports a processing device that applies vibrations to a workpiece to process the workpiece in a desired state, the processing device support machine frame having a support wall portion that supports the processing device, the support wall portion being made of the plate material.

[0014] In this configuration, the wall surface is made of a laminated plate member made of multiple overlapping plates, which reduces the leakage of noise generated from the processing space where the workpieces are processed. Furthermore, when vibrations generated during processing are repeatedly transmitted to the laminated plate member, the laminated plate member bends left and right, flexes, and vibrates slightly. It is believed that this causes each plate member to bend with different curvatures while being restrained by the fasteners. This results in a more complex vibration transmission structure, which provides the wall surface with a vibration absorption function.

[0015] Furthermore, a configuration is proposed in which through holes are formed in the laminated plate member along the thickness direction of the plurality of plate bodies, and when the plurality of plate bodies are stacked in the thickness direction, rivets as the fastening bodies are inserted into the through holes, and the stacked plate bodies are crimped together by being riveted with the rivets.

[0016] In this way, by configuring multiple plates to be riveted together, the stacked plates are interspersed with areas where the riveting is highly compressed and areas where the riveting is relatively weakly compressed, which makes it possible to further reduce noise and vibration by complicating the propagation of vibration between the plates. In addition, the propagation pattern of vibration transmitted through plastically deformed rivets also becomes more complex, which leads to reduced noise and vibration. [Effects of the Invention]

[0017] The plate material of the present invention has the effect of absorbing vibrations.

[0018] Furthermore, the base with casters of the present invention has the effect of reducing the load imposed on the workpiece when it is transported. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a front view of a casting sand removal device in Example 1. [Figure 2] 1A and 1B show a laminated plate member according to Example 1, in which FIG. 1A is a perspective view and FIG. 1B is a partially enlarged cross-sectional view. [Figure 3] 4 is an explanatory diagram showing a state in which the laminated plate member in Example 1 is vibrating. FIG. [Figure 4] FIG. 10 is a front view of a base with casters that supports a workpiece in Example 2. [Figure 5] 10A and 10B show a base in Example 2, where (a) is a front view and (b) is a side view. [Figure 6] 10A and 10B show a base in Example 2, in which FIG. 10A is a plan view and FIG. 10B is a partially enlarged cross-sectional view. [Figure 7] FIG. 10 is an explanatory view showing a curved state of the laminated plate member in Example 2. DETAILED DESCRIPTION OF THE INVENTION

[0020] The following describes in detail specific examples of the present invention. Note that the present invention is not limited to the examples shown below, and design modifications are possible as appropriate.

[0021] Example 1 As shown in Fig. 1, the casting sand removal apparatus 1 includes a machine casing 10, which is a processing device support machine casing. Inside the machine casing 10, a mounting table 20 on which a workpiece W is placed is arranged. Also, inside the machine casing 10 and above the mounting table 20, a hammer device 30, which is a processing device, is arranged.

[0022] Here, the machine frame 10 has a floor portion 11, side wall portions 12, and a ceiling portion 13, all of which correspond to a wall portion 50 according to the present invention. The wall portion 50 is made of a laminated plate member 60, which is a plate material formed by overlapping a plurality of (two in this embodiment) plate bodies 51. Specifically, the laminated plate member 60 constituting the wall portion 50 is formed by riveting two metal plate bodies 51 of the same material and thickness together with rivets 52, which serve as fasteners. That is, as shown in FIG. 2 , each plate body 51 has a through hole 55 formed along its thickness direction. With the plate bodies 51 overlapped in the thickness direction, the rivet 52 is inserted into the through hole 55, and the rivet 52 is plastically deformed to fasten the plate bodies 51 together to form the laminated plate member 60.

[0023] The workpiece W and the hammer device 30 are surrounded by the wall surface portion 50 of the machine frame 10, ensuring safety during work and providing a structure that makes it difficult for noise to leak to the outside.

[0024] In this embodiment, the mounting table 20 is also made of a laminated plate member 60, which is a plate material similar to that of the wall surface portion 50.

[0025] In the casting sand removal device 1, a workpiece W is placed on a mounting table 20, and a hammer device 30 driven by an air source or an electric power source repeatedly applies downward striking force to the workpiece W to vibrate the workpiece W. As a result, the lumps of casting sand contained in the workpiece W gradually break down, and the casting sand is discharged to the outside in the form of small pieces or powder.

[0026] In the process of dropping the casting sand as described above, the hammer device 30 corresponds to a predetermined vibration source. Therefore, the vibration generated by the hammer device 30 is transmitted to the wall surface portion 50.

[0027] The ceiling surface 13 on which the hammer device 30 is supported corresponds to the supporting wall surface. That is, the machine frame 10, which is a processing device support machine frame, supports the hammer device 30, which is a processing device that applies vibrations to the workpiece W to process the workpiece W into a desired state.

[0028] When the hammer device 30 applies an impact to the workpiece W, the hammer device 30 and the workpiece W vibrate. The vibrations propagate to the mounting table 20 and the wall surface 50, generating noise. However, since the laminated plate member 60 is used for the mounting table 20 and the wall surface 50, the laminated plate member 60 exhibits a vibration-absorbing effect. Specifically, as shown in FIG. 3 , the laminated plate member 60 functions to effectively absorb vibrations by bending, flexing, and vibrating slightly while remaining fastened in response to the propagated vibrations. Furthermore, the laminated plate member 50 includes a crimped portion 71 where the plates 51 are crimped together by the plastically deformed rivet 52, and a non-crimped portion 72 that is simply adjacent but not crimped. This complicates the propagation pattern of vibrations propagating through the crimped portion 71 and the non-crimped portion 72, thereby reducing noise and vibration. In other words, the laminated plate member 60 functions to internally complicate externally applied vibrations and reduce their amplitude. For example, in one experimental example, a machine frame 10 having wall portions 50 made of laminated plate members 60 formed by stacking two plates 51 each having a thickness of X / 2 produced approximately 10 db of noise reduction compared to a machine frame having wall portions made of laminated plate members each having a thickness of X and consisting of a single steel plate. The bending (swaying) phenomenon of the machine frame 10, which occurs due to the stacked structure of multiple plates 51, can increase the torque of the hammer device 30 and also has the effect of extending the overall product and equipment lifespan by alleviating excessive stress concentration. Furthermore, the thin thickness of each plate 51 also contributes to cost reduction.

[0029] As a result, the casting sand removal device 1 equipped with the machine frame 10 has a better noise reduction effect than conventional devices.

[0030] It should be noted that the illustration in FIG. 3 is exaggerated for ease of understanding.

[0031] Furthermore, the hammer device 30 can suitably be a striking device for removing foundry sand used in conventional casting sand removal devices, and so-called shaker hammers or straight hammers can be used. Furthermore, by using such different types of hammers, different vibrations can be applied to the workpiece W. Furthermore, the hammer device 30 may be a pneumatic or electric hammer tool configured to impact an object, such as a jackhammer, concrete breaker, chipping machine, nailer, riveter, pile driver, earth mover, compactor, rammer, tamper, roller, asphalt or concrete leveling machine, etc.

[0032] In the laminated plate member 60, the number of plate bodies 50 to be laminated is not particularly limited. In the laminated plate member 60, the rivets 52 may be arranged freely, but it is preferable that a crimped portion 71 and a non-crimped portion 72 are formed. As a means for fastening the laminated plate member 60, rivets may be used, and a fastening means with a bolt and nut structure may also be used.

[0033] Example 2 As shown in FIG. 4, the base 100 supports and transports a heavy workpiece W2.

[0034] As shown in FIGS. 5 and 6, the base 100 includes a support plate portion 110 having a plurality of (six) casters 120 arranged vertically and horizontally on its underside. The support plate portion 110 is made of a laminated plate member 130, which is a plate material formed by stacking a plurality of (two in this embodiment) plates 111. Specifically, the laminated plate member 130 constituting the support plate portion 110 is formed by riveting two metal plates 111 of the same material and thickness together with rivets 112, which serve as fasteners. That is, as shown in FIG. 6(b), through holes 115 are formed in the plate members 111 along the thickness direction. With the plates 111 stacked in the thickness direction, the rivets 112 are inserted into the through holes 115, and the rivets 112 are plastically deformed to fasten the plates 111 together to form the laminated plate member 130.

[0035] Furthermore, a surrounding plate portion 140 that prevents the workpiece W2 from shifting sideways is erected on the upper surface of the supporting plate portion 110 (laminated plate member 130). The surrounding plate portion 140 uses a metal angle, and is riveted to the supporting plate portion 110 with rivets 112.

[0036] Furthermore, support columns 200 are erected on the surrounding plate 140, and the workpiece W2 is supported by the support columns 200.

[0037] The pedestals 100 are arranged in a set of four to support the workpiece W2, and the casters 120 allow the workpiece W2 to be moved while being supported from below.

[0038] As shown in FIG. 7, the support plate portion 110 bends and curves due to the load of the workpiece W2. However, the support plate portion 110 (laminated plate member 130) has a crimped portion 151 where the plates 111 are crimped together by the plastically deformed rivet 112, and a non-crimped portion 152 where the plates 111 are simply adjacent but not crimped. This allows the plate portion 111 on the workpiece W2 side and the plate portion 111 on the caster 120 side to have different curvatures when bent. This allows a substantially equal load to be distributed and applied to all six casters 120, allowing each caster 120 to properly contact the ground, making it possible to easily move and rotate the base 100. Furthermore, the vibrations propagating from the grounded casters 120 to the support plate portion 110 can be complicated, reducing noise and vibration, thereby enabling the safe movement of the workpiece W2. In other words, the supporting plate surface portion 110, which is the laminated plate member 130, has the function of internally compounding vibrations applied from the outside and reducing the amplitude.

[0039] In this way, a plurality of bases 100 are used to support and transport a heavy workpiece W2.

[0040] In FIG. 7, the deflection state is exaggerated for ease of understanding.

[0041] There is no particular limit to the number of plate bodies 111 to be stacked in the laminated plate member 130. There is also no particular limit to the number of casters 120. In the laminated plate member 130, the rivets 112 may be arranged freely, but it is preferable that a crimped portion 151 and a non-crimped portion 152 are formed. As a means for fastening the laminated plate member 130, riveting may be used, and of course fastening means using a bolt and nut structure may also be used in combination. [Explanation of symbols]

[0042] 1. Casting sand removal equipment 10 Machine frame (processing device support frame) 11 Floor section 12 Side wall section 13 Ceiling section 20 Mounting table 30 Hammer device (processing device) 50 Wall 51,111 Plate 52,112 Rivets (fasteners) 55,115 through holes 60,130 Laminated plate material (plate material) 71,151 Crimping area 72,152 Non-crimped area 100 pedestals 110 Support plate surface part 120 Caster 140 Surrounding plate W,W2 work

Claims

1. A plate material capable of suppressing transmission of vibration transmitted from one side to the other side along the plate thickness direction, The laminated plate member is made of a plurality of metal plates of the same material and thickness stacked one on top of the other, and the stacked plates are fastened together by plastically deforming fasteners that penetrate the plates. A plate material characterized by:

2. A base with casters for transporting a workpiece, a support plate portion having a plurality of casters attached to a lower surface thereof; a support column portion for supporting a workpiece, the support column portion being provided on the upper surface of the support plate portion; 2. A base with casters, wherein the support plate portion is made of the plate material according to claim 1.

3. The support plate surface portion is through holes are formed along the thickness direction of the plurality of plates, With the plurality of plate bodies overlapped in the thickness direction, rivets as the fasteners are inserted into the through holes, and the overlapped plate bodies are crimped together by being riveted with the rivets. The caster-equipped base according to claim 2.

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