JP3665557B2 - Spacer for stacking workpieces of electrostatic coating machine - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention provides an end face of a large number of workpieces with respect to a workpiece hanging / hanging hanger used during the period from the loading of a workpiece into the electrostatic coating machine to the unloading after electrostatic coating is completed. It is related with the spacer for the workpiece | work stacking of the electrostatic coating machine used when stacking and holding in a column in the state which faced.
[0002]
Specifically, the edge 62 of the electrostatic coating film 61 is greatly turned around the end surface 63 of the workpiece as shown in FIG. 12, and the length dimension between the upper and lower end surfaces of the workpiece is changed to an unfavorable state. In other words, the edge 62 of the electrostatic coating film 61 does not wrap around the end face 63 of the workpiece. As shown in FIG. The present invention relates to a workpiece stacking spacer for an electrostatic coating machine that can be reliably and easily implemented.
[0003]
[Prior art]
Conventionally, the above-mentioned electrostatic coating product with no change in length is subjected to post-processing such as scraping off the wrapping part after obtaining a semi-finished product in which the edge of the electrostatic coating film wraps around the end face of the workpiece. It was by the method of getting it.
[0004]
However, when these methods are used, (1) there are many steps, (2) there is a limit to cost reduction, (3) the cut which tends to cause peeling and rusting is scraped off. There were problems such as being inevitably made.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a workpiece stacking spacer for a new electrostatic coating machine that solves the above-mentioned problems.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the spacer for stacking workpieces of the electrostatic coating machine according to the present invention is used for carrying in and out of the electrostatic coating machine and after the process to the outside of the machine. It is used to stack and hold multiple workpieces in multiple rows on the hanger to be used, and it has many or continuous front protrusions on the front surface along the inside of the outer periphery. The back side protrusions are provided on the back surface as an arrangement in which each of these back side protrusions exists between the front side protrusions or a continuous shape, and a centering fitting hole is formed in the center.
[0007]
【Example】
Embodiments of the present invention will be described with reference to the drawings.
First, a hanger column 2 having a hanging hook 1 at its upper end is constructed, and horizontal left and right upper arms 3 and 4 are provided at positions near the upper end of the hanger column 2, and horizontal left and right lower arms 5 and 6 are respectively provided at the lower end. In addition, short left and right non-stretchable downward shafts 7 and 8 are provided at the front ends of the left and right upper arms 3 and 4, and the upper end surface of the work 9 or the dummy 10 is pressed against the lower ends of the respective non-stretchable downward shafts 7 and 8. The upper center plates 12 and 13 with the left and right center dowels 11 are fixed, and the left and right telescopic upper shafts 14 and 15 are provided at the distal ends of the left and right lower arms 5 and 6, respectively. , 15 are provided with lower center plates 17, 18 with left and right center dowels 16 at which the lower end surfaces of the work 9 or the dummy 10 are in pressure contact with each other. In constituting the two columns hanger 19 for holding up to two rows in a state where the stacked up multiple stages.
[0008]
As shown in FIG. 7, the upper center plates 12, 13 with the center dowel 11 have a spacer 26 described later at the lower end of each of the non-stretchable downward shafts 7, 8. The spacer 26 slightly swings around the center dowel 11. It is configured by being fastened by a rubber ring 25 in a movable state, so as to absorb inconveniences due to the inclination and unevenness of the end face of the workpiece, subtle deviations, and the like.
[0009]
Further, as shown in FIG. 8, the lower center plates 17 and 18 with the center dowel 16 are provided with a spacer 26 described later on the conical dowel 16 of each of the telescopic downward shafts 14 and 15. It is constructed by placing it in a slightly swingable state as the center, so as to absorb inconveniences due to the inclination and unevenness of the end face of the workpiece, subtle deviations and the like.
[0010]
The upper center plates 12 and 13 and the lower center plates 17 and 18 can be fixed types that do not swing.
[0011]
Each of the telescopic upward shafts 14 and 15 has hook portions 21 and 22 having an inverted T-shape at the lower end thereof, and always receives an upward return force by the acting force of the coil spring 23 and is released from an external force. In the state, the distance between the upper center plates 12 and 13 and the lower center plates 17 and 18 is kept constant.
[0012]
The workpiece 9 or the dummy 10 has a short round bar shape as a whole, and has an outer shape having a recess 24 having a relatively complicated shape at the center of the front surface thereof.
[0013]
Then, when a large number of such workpieces 9 or dummy 10 are stacked in multiple rows in the vertical direction as described above, the following spacers 26 are inserted and used between them.
[0014]
The spacer 26 is provided with a large number of low front side protrusions 27 at regular intervals on the front surface along the inner periphery of the outer periphery, and a plurality of low back side protrusions 28 are also provided on the back surface. A projection 28 is provided as an arrangement existing between the front side projections 27, and a fitting hole 29 for the center dowels 11 and 16 of the upper center plates 12 and 13 and the lower center plates 17 and 18 is provided in the center.
[0015]
The spacer 26 may be configured as shown in FIGS. 3A to 3E.
That is,
FIG. 3A shows a front-side protrusion 27 and a back-side protrusion 28 in which a portion centering on the fitting hole 29 is made uneven in a water-like pattern (wave).
In FIG. 3B, a ring-shaped plate having a small diameter is stacked on the front and back surfaces with the fitting hole 29 as the center.
FIG. 3C shows a flat abacus ball shape.
In FIG. 3D, the front-side protrusion 27 and the back-side protrusion 28 have a ridge shape and are arranged on a circular line.
In FIG. 3E, the front-side protrusion 27 and the back-side protrusion 28 are formed in a ridge shape and are arranged on the radiation.
The fitting hole 29 is a hole having an irregular shape such as a square or a hexagon.
[0016]
The above-mentioned two-row hanger 19 can be loaded into an electrostatic coating machine (not shown) after loading the work 9 or the like by using an alignment loading device described below, It is used for usage such as unloading after completion of electrostatic coating by a coating machine.
[0017]
Here, the aligning and loading apparatus will be described with reference to the drawings.
First, a gantry 35 having an inclined wall surface 34 supported by the front leg 32 and the rear leg 33 in a state of being slightly tilted rearward is constituted, and the same line is aligned with a pair of left and right vertical lines on the inclined wall surface 34 of the gantry 35. Long V-grooved blocks 36, 37 are arranged along the upper arm and fixed to the inclined wall surface 34 using a plurality of support legs 38, 39. Three and four mounting upper plates 40 and the mounting lower plates 41 of the lower arms 5 and 6 are provided.
[0018]
Further, in the mounting upper plate 40, the upper side through which the downward shafts 7 and 8 and the hanger column 2 pass at the left and right positions corresponding to the upper end opening 42 of the left and right V-grooved blocks 36 and 37 and the middle position between these left and right positions. Cutouts 44, 45, 46 are provided, and the upward shaft 14 is provided at the left and right locations corresponding to the lower end opening 43 of the left and right V-grooved blocks 36, 37 in the lower plate 41, and at an intermediate location between these left and right locations. 15 and the lower notches 47, 48, and 49 for passing through the hanger column 2 are cut.
[0019]
In addition, the left and right air cylinders 51 and 52 are arranged in a state where the telescopic shafts 53 and 54 are movable upward at positions below the lower end opening 43 of the left and right V-grooved blocks 36 and 37 below the inclined wall surface 34. At the same time, the hook members 55 and 56 of the above T-shaped hook portions 21 and 22 having bifurcated tips are attached to the tips of the telescopic shafts 53 and 54, respectively.
[0020]
Next, in order to load the workpiece 9 or the dummy 10 on the two-row hanger 19 using the above-described alignment loading device, first, the downward shafts 7 and 8 of the two-row hanger 19 and the upper part of the hanger column 2 are passed through the upper side. The upper arms 3 and 4 are arranged on the mounting upper plate 40 in the state where the notches 44, 45 and 46 are fitted, and the upper shafts 14 and 15 of the second row hanger 19 and the lower part of the hanger support 2 are passed through the lower side. The lower arms 5 and 6 are arranged on the mounting lower plate 41 with the notches 47, 48 and 49 fitted, and the T-shaped hook portions 21 and 22 provided at the lower ends of the upward shafts 14 and 15 are hooked members. A state in which the space between the upper center plates 12 and 13 and the lower center plates 17 and 18 is widened with the telescopic shafts 53 and 54 of the left and right air cylinders 51 and 52 shortened. And At this time, the upper center plates 12 and 13 have a positional relationship corresponding to the upper end opening ports 42 of the left and right V-grooved blocks 36 and 37, and the lower center plates 17 and 18 have a positional relationship corresponding to the lower end opening ports 43. Become.
[0021]
After placing the dummy 10 on the lower center plates 17 and 18 in such a positional relationship and inserting the upper half into the lower ends of the grooves of the V-grooved blocks 36 and 37, the dummy 10 The spacer 26 is placed on the upper end surface, the next workpiece 9 is placed on the placed spacer 26, and the whole is fitted into the grooves of the V-grooved blocks 36 and 37, and thus the spacer 26 is placed. And the workpieces 9 are alternately stacked up to a predetermined number of levels, and finally the dummy 10 is stacked.
[0022]
When the stacking is completed, the telescopic shafts 53 and 54 of the left and right air cylinders 51 and 52 are brought into an extended state. Then, the upward shafts 14 and 15 are extended by the repulsive force of the built-in coil spring 23 and the upper center plates 12 and 13 are extended. And the lower center plates 17 and 18 are narrowed, so that the stacked workpieces 9 and spacers 26 are raised so that the upper end surface of the uppermost dummy 10 is pressed against the lower surfaces of the upper center plates 12 and 13. .
[0023]
When this pressure contact is completed, the stacked workpiece 9 and the spacer 26 and the dummy 10 are maintained in the aligned state in which they are stacked up to multiple stages in the vertical direction by guiding the grooves of the V-grooved blocks 36 and 37, and the force of the coil spring 23 is maintained. It is firmly sandwiched between the upper center plates 12 and 13 and the lower center plates 17 and 18 to maintain the alignment state.
[0024]
After the alignment state is maintained, the upper shafts 14 and 15 of the two-row hanger 19 and the lower part of the hanger support 2 are removed from the lower notches 47, 48, and 49 for passing through and from the upper notches 44, 45, and 46 for passing. The two-row hanger 19 loaded with the workpieces 9 aligned in two rows is obtained by removing the downward shafts 7 and 8 of the two-row hanger 19 and the upper part of the hanger column 2. This is carried into an electrostatic coating machine (not shown), subjected to an electrostatic coating process by revolving and rotating in the same machine, etc., and used for such purposes as being taken out of the machine after completion.
[0025]
Incidentally, the height of the spacer side protrusions 27 and the back side protrusions 28 of the spacer is important in order to obtain a convenient electrostatic coating film 61 in which the edge 62 does not greatly wrap around the workpiece end surface 63. That is,
When the height is high, as shown in FIG. 13, the gap between the workpiece end surface 63 and the spacer 26 is widened so that the paint particles 64 can easily enter between the edges, and the edge 62 greatly wraps around the workpiece end surface. 27 and the back side projection 28 are in an inconvenient state, and the front side projection 27 and the back side projection 28 must be cleaned in the next use.
In the case of low, as shown in FIG. 14, the gap between the end surface 63 of the workpiece and the spacer 26 becomes narrow so that the paint particles 64 do not easily enter the space, and the peripheral portion of the spacer 26 serves as a pedestal. As a result, the electrostatic coating film is in an inconvenient state in which a so-called bridge 65 is formed between adjacent works.
Therefore, the inventor has empirically set the heights of the front-side protrusion 27 and the back-side protrusion 28 of the spacer by repeating the test.
[0026]
【The invention's effect】
As described above, the spacer for stacking workpieces of the electrostatic coating machine according to the present invention is used for loading into the electrostatic coating machine, electrostatic coating process in the same machine, and unloading to the outside after the process. Used for stacking and holding a large number of workpieces stacked in multiple rows on a hanger, with a large number or continuous front protrusions on the front surface along the inside of the outer periphery, and the back surface The backside protrusions are arranged in such a manner that each of these backside protrusions is located between the front side protrusions or a continuous shape, and a centering fitting hole is opened in the center. The electrostatic coating film 61 shown by hatching in FIG. 6, that is, the edge 62 does not wrap around the end face of the workpiece so that the length does not change as shown in FIG. It is possible to reliably and easily obtain the electrostatic coating film 61 that is remarkably less convenient without post-processing, and has the effect of completely achieving the intended purpose of eliminating the above problems. Is.
[Brief description of the drawings]
FIG. 1 is a plan view showing a spacer.
FIG. 2 is a sectional view taken along line 1A-A in FIG.
FIG. 3 is a plan view and a front view showing other types of spacers (a) to (e).
FIG. 4 is a front view showing a two-row hanger for workpiece suspension conveyance.
FIG. 5 is a front view showing a use state of the two-row hanger.
6 is an enlarged sectional view taken along line B-B in FIG.
FIG. 7 is an enlarged cross-sectional view of an upper center plate portion.
FIG. 8 is an enlarged cross-sectional view of a lower center plate portion.
FIG. 9 is a front view showing a workpiece aligning and loading apparatus.
FIG. 10 is a front view showing a state of use of the workpiece aligning and loading apparatus.
11 is a cross-sectional view taken along line 10C-C in FIG.
FIG. 12 is an enlarged cross-sectional view showing an inconvenient example in which the edge of the coating film is greatly wrapped around the end face of the workpiece.
FIG. 13 is an enlarged cross-sectional view showing an inconvenient example in which the edge of the coating film reaches the front side protrusion and the back side protrusion.
FIG. 14 is an enlarged cross-sectional view showing a bad example in which the edge of the coating film forms a bridge.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hanging hook 2 Hanger support | pillar 3 Upper arm 4 Upper arm 5 Lower arm 6 Lower arm 7 Down shaft 8 Down shaft 9 Work 10 Dummy 11 Center dowel 12 Upper center plate 13 Upper center plate 14 Up shaft 15 Up shaft 16 Center Dowel 17 Lower center plate 18 Lower center plate 19 Two-row hanger 21 Hook portion 22 Hook portion 23 Coil spring 24 Recess 26 Spacer 27 Front side projection 28 Back side projection 29 Fitting hole 32 Front leg 33 Rear leg 34 Inclined wall 35 Base 36 V-grooved block 37 V-grooved block 38 Support leg 39 Support leg 40 Mounting upper plate 41 Mounting lower plate 42 Upper end opening 43 Lower end opening 44 Upper notch 45 Upper notch 46 Upper notch 47 Lower notch 48 Lower notch 49 Lower notch 51 Air cylinder 52 Air cylinder 53 Telescopic shaft 54 Telescopic Shaft 55 Hooking member 56 Hooking member 61 Electrostatic coating film 62 Edge 63 End face 64 Paint particle 65 Bridge

Claims (1)

Used to stack and hold multiple workpieces in multiple stages on a hanger that is used to carry in and out of the electrostatic coating machine and to the outside of the machine after that process. An arrangement in which a large number or continuous front protrusions are provided on the front surface along the inside of the outer peripheral edge, and the back protrusions are arranged on the back surface, and each of these back protrusions is located between the front protrusions. Alternatively, a spacer for stacking workpieces in an electrostatic coating machine that is provided as a continuous arrangement and has a centering fitting hole in the center.

Images