JPS5945103A - Device for painting cement mortar shape - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for coating a cement mortar molded article, and more particularly to an apparatus for painting a raw molded article while automatically moving it during the stage of transportation from the molding apparatus to a curing area.

Conventionally, it has been extremely difficult to apply paint to molded products such as cement tiles after molding and before curing, although it is not impossible due to the moisture content of the molded products. there were. However, this has become possible since the development of a molding machine that forcibly removes the water inside the mold by vacuum suction as well as press pressure (see Japanese Patent Publication No. 54-2029). In this case, since the coating agent contains relatively expensive components, it is desirable to collect the coating agent scattered around the coating area while also cleaning the coating area.

Therefore, the purpose of the present invention is to enable the reuse of coating agents,
To provide an automatic cement mortar molded product coating device that can save costs and maintain cleanliness. To achieve this objective, the present invention provides, firstly, at least one molded article cradle arranged between a supply conveyor and an outfeed conveyor, and at least one corresponding molded article pedestal arranged above the cradle. It consists of a painting gun, a plurality of till feeding arms that move between adjacent locations of both conveyors and the pedestal, and a progressive conveyance mechanism that supports and drives the conveying arms. It is an object of the present invention to provide a coating device for cement mortar molded products, characterized in that a coating agent collection container is disposed on the side. By arranging the paint collection container at the position described above, paint can be collected without interfering with the automatic transport and painting operations of several ships.

On the other hand, in the present invention, the paint collection container is arranged below the molded product holder for painting, but considering the movement space of one general transport arm, the paint collection container is placed under the movement space of the transport arm. I have to put it on the bottom.

Another object of the present invention is to provide a cement mortar molded article coating apparatus that does not take up any storage space even when a coating agent recovery container is attached. To achieve this objective, the invention provides at least one molded article pedestal arranged between the supply conveyor and the delivery conveyor, and at least one corresponding coating gun arranged above the pedestal. A plurality of conveyor arms move between adjacent locations of both conveyors and pedestals, and a sequential feed jul! that supports and drives the conveyor arms. It consists of a feeding mechanism, and the lul! The feeding mechanism includes a plurality of vertical guide shafts that move horizontal guide shafts, the plurality of vertical guide shafts are connected and driven by an air cylinder, and a plurality of conveying arms that move the vertical guide shafts are connected and combined. A coating device for cement mortar molded products driven by an air cylinder for lifting and lowering, in which the lifting distance of only the outer two arms of the inner lining of multiple conveyor arms is longer than the other arms, and the thickness in the vertical direction of the conveyor is It is an object of the present invention to provide the above-mentioned painting device, in which the other arms are moved as far as possible, but the lowermost positions of the other arms are positioned as long as they are lower than the surface of the conveyor. This allows both outer jul! Only the transport arm moves up and down by more than the thickness of the conveyor, but the inner transport arm keeps its lowest end above the outer arm, and the space below can accommodate the paint collection container, making it easier to use than conventional transport arms. No extra space is required, and there is no need to increase the volume of the entire device.

Other features of the invention will be described in detail below with reference to the accompanying drawings, which illustrate embodiments of the invention.

FIG. 1 shows an automatic cement mortar forming machine and a coating station 2 connected thereto. As an automatic cement mortar molded product manufacturing apparatus, for example, the one shown in Japanese Patent No. 984943 (Japanese Patent Publication No. 54-20209) can be used.

7 is a steam/water separator connected to the vacuum suction type water squeezing device of the above patent.

The molded product 8 transferred from the molding machine to the twelfth conveyor 6 is sent to a predetermined position of the coating station 2 by the first conveyor 6. It is transported by a pair of conveyor arms 9 to a first stopping position, then to a second stopping position, and finally to a second conveyor 10.
(see Figures 2, 3a and 3b). If there are two painting positions as in the example,
The molded product 8 is moved from four positions arranged in a line in a direction perpendicular to the conveyance of the conveyor to the first one by three rectangular movements by three conveyor arms that are integrally fixed to the progressive conveyance mechanism 11 and extend at right angles. It is conveyed from the conveyor 6 to the second conveyor 10. A coating device 12 is disposed above the coating position, and a drive motor 13 drives a rotary shaft 15 that vertically penetrates the center of a coating agent tank 14 and is supported by a bearing.
The lower end of this rotating shaft 15 serves as the rotor of the pump 16. Further, stirring blades 17 are provided at the lower part of the rotating shaft 15 to maintain the homogeneity of the coating agent and to transfer heat.

A heat conductive medium circulation muffler 19 is installed around the tank to keep the temperature of the paint constant, and hot water is circulated in the winter and cooling water is circulated in the summer. A slurry coating gun 18a connected to a pump directs its coating injection port toward the molded product 8. 1
It is preferable to paint one molded product 8 with two slurry painting guns 18a arranged in parallel.
A separate tank 14 is connected to each of the tanks 8a.

Below the molded product holder at the coating position, from the first stop position to the second stop position, and over the coating range of a pair of slurry painting guns, the slurry recovery receiver is a plate support stand and a cooling device 4.
It is supported on top of 2.

FIG. 2 fa) to ff) shows the coating and 111! of the coating apparatus related to the present invention! To show the operation of forwarding, sequential forwarding is 11!
Three pairs of transport arms 9 protrude from the transport mechanism 11.
The conveyance arm 9, which has the same dimensions and mutual dimensions as each structure, may have a U-shape in plan view, which is convenient for receiving the molded product 8, and at the same time conveys the corresponding first conveyor 6 and second conveyor 10. The first and second supports at the painting position are selected to have a shape that allows them to be moved vertically and horizontally between the stands 57 and 58. The position shown in FIG. 2(a) is the initial position of the conveyance cycle, and there have already been several
! ! Assuming that the feeding cycle has ended, the end of the first conveyor 6 and the first molded product holder 57 at the first stopping position,
The molded products are respectively placed on the second molded product holders 58 located at the second stop position. The transfer arm 9 is shown in FIG.
Waiting at position t. Activating the transport mechanism 11,
When moving from FIG. 2(a) to FIG. 2(b), the transport arms 9 each support the molded product 8 together with the iron receiving plate. Next, the conveying arm 9 is moved horizontally to the position shown in FIG. 6(C), and during this movement, the coating guns 18a, 18b spray the coating agent, that is, the slurry and the top coat. The relationship between conveyance and paint spraying is shown as an example; when the conveyance arm 9 is at a certain rest position,
8b may be moved from left to right;
, 18b is preferably applied. It is desirable that the coating gun be in the fixed position at least during painting, considering that the coating agent collection receiver is in the fixed position with the pan 41. If you have to move the paint guns 18a and 18b during painting,
Since the collection tray also moves the tray 41, or if the tray is wide, it becomes necessary to use a tray.

Fig. 2 (Transfer arm 9 from C1 position to (d+ position)
moves downward in the vertical direction, and after delivering the molded product to a pedestal or conveyor on the way, it operates and stops at +d+ in Fig. 6, and then the tM feed arm 9 moves horizontally to the right and moves to the second position. Fig. 2 (position fl, that is, the second
One cycle is completed by returning to the position shown in the figure (al).During this transportation cycle, the painting guns 18a and 18b use the time from the end of the painting work time until the start of the next work time to Cleaning can shorten work time.

Placing two pedestals between the conveyor belts on both sides using three pairs of general feed arms 9 is an example in which slurry painting and top coat painting are applied successively. If it is not necessary, just place one pedestal between both conveyor belts and drive two pairs of Ut+feeding arms, and if additional work is required in addition to the two types of painting, the number of This need can be met by increasing .

The progressive conveyance mechanism 11 is shown in FIGS. 3a and 3b and consists of two parallel cylindrical horizontal guides (59.6).
0 is fixed to the machine frame (not shown) of the transport mechanism 11, and each of the horizontal guide shafts 59 and 60 has 3
Cylindrical holes 63 and 64 provided in the connecting blocks 61 and 62
The three sets of upper and lower connecting blocks 61 and 62 further have vertical cylindrical holes, which are also fitted into the cylindrical holes of the three cylindrical vertical guide shafts 65 and fixed. The arm 0 has an extension below the horizontal guide shaft, and an arm 0 mounting block 66 passes through this lower extension so as to be able to slide downwardly. The three upper connecting blocks 61 are arranged at equal intervals by, for example, U-shaped connecting beams 67, and the one general feed arm 22 is arranged at equal intervals by connecting beams 68, and the upper and lower connecting beams 67 and 68 are arranged in two sets of composite The upper connecting beam 67 is connected to a piston rod mounting plate 71 connected to a piston sliding inside an air cylinder 70 fixed to the machine frame of the progressive conveyance mechanism 11. Fixed connection via.

FIG. 4 is a perspective view of the coating agent recovery device of the coating device of the present invention.
A portion is cut away to show the details. The tray is preferably in the shape of a rectangular box made of stainless steel, and the cooling device is made of stainless steel tube 143 with a rectangular cross section.
are connected and meandered to form a path that reciprocates in the longitudinal direction of the rectangle. A coolant port 144 and an outlet 145 are provided at the end of the meandering path of the cough tube body 143. These ports 144 and outlet 145 have a socket portion protruding from the lower surface of the front end, as shown by dotted lines in the drawing, to which piping for circulating the coolant can be connected. 156 is a vent communicating with the inside of the cooling tube 143, and is usually plugged. Such a cooling device has iron supporting legs 15 at the front and rear.
It has 7.

Figures 5 and 6 refer to Figures 2, 3a and 3b.
In contrast to the embodiment of the progressive conveyance mechanism shown in the figure, another embodiment of the present invention will be shown. In FIG. 5, the lifting air cylinders are comprised of two first cylinders 101 and two second cylinders 10, unlike the cylinders 69 arranged vertically in series in FIG. 3a.
2 are provided in parallel, the first cylinder 101 has a lower end connected to the lower connecting beam 68, and an upper end piston rod.
It is connected to the lower end of the vertical connecting rod 103 fixed to the upper connecting beam 67. The second cylinder 10 is attached to the lower connecting beam 68.
The lower end of the second cylinder 102 is fixed, and a piston rod that telescopically projects from the upper end of the second cylinder 102 connects to another connecting beam 104.
is fixed. The lower part of the vertical guide shaft slides in the vertical through hole 2 provided in the lower connecting beam 68 and the guide 105 fixed to its upper surface. At both left and right ends, there is a vertical rod 10 whose upper end is fixed to the connecting beam 104 and whose lower end slides in a vertical through hole provided in a guide 106 fixed to the lower connecting beam 68 and its upper surface.
7, which has an outer transport arm 9a at its lower end. The inner transport arm 9b of the six transport arms in the other three sets is
It is fixed to the lower connecting beam 68 at intervals. In the embodiment shown in FIG. 3a, all the transfer arms 9 made the same movement, but in this embodiment, the first cylinder 101 performs the same up and down movement, and only the transfer arms 9a on both sides are further moved by the cylinder. 102 for downward movement. The vertical guide cylinder 65 and the vertical connecting rod 103 are inserted into a through hole provided in the connecting beam 104, allowing the connecting beam 104 to move up and down. FIG. 5 shows the first general feed arm 9a at its lowest position, and the piston rod of the cylinder 102 is at its most retracted position. When this extends, it rises together with the connecting beam 104 until it reaches the same height as the transport arm 9b. Here, all the transport arms 9a.

9b are aligned in a horizontal position and are raised together by the retraction movement of the piston rod by the cylinder 101.

The position of FIG. 5 is (dl (el ff
At the positions l and (al, (dl (el (horizontal movement in the stages of fl and (al) is the horizontal guide shirt) 59, 60 by means of a cylinder (not shown) shown at 70 in FIG. 3a. Comparing Fig. 6 and Fig. 2, the differences are in the movement of the transfer arm and the position of the slurry recovery receptacle, which is composed of a tray 41 and a supporting stand/cooling device 42.Slurry recovery device must be placed below the movement trajectory of the transport arm, but this transport arm 9
Because they move in unison, the slurry recovery device must be placed below the lower end of the belt conveyor 6.12, since the belt conveyor 6.10 can be moved in a rectangular manner larger than the vertical and horizontal dimensions of the belt conveyor 6.10. On the other hand, in FIG. 6, the upper end of the slurry recovery device is located at a higher position than the lower end of the belt conveyor 6.10, and only the conveyor arms 9a at both ends go around the belt conveyor 6.10; The general feed arm 9b makes a rectangular movement in the space 4 above the slurry recovery device. The inner end position of the movement of the IAg feeding arm 9a is limited at both ends of the slurry collection position. In other words, the width of the slurry recovery device is restricted. (from al to (b) and (e) to fd+
During the transition movement, the two cylinders operate at the same time. The other movements are the same as described in FIG. 2, and the functions of the transport arms are exactly the same.

[Brief explanation of the drawing]

Fig. 1 is a front view of the coating device of the present invention, Fig. 2 is an elevational view showing the transport process of molded products in one embodiment of the coating device, and Fig. 3a
Figures and Figure 3b are sequential steps of the embodiment shown in Figure 2 +11
1 is a front view and a side view of the transport mechanism, FIG. 4 is a perspective view of a paint recovery device used in the coating device of the present invention, and FIG. 5 is a different embodiment from the embodiment shown in FIG. 3a. FIG. 6 is a front view of the progressive conveyance mechanism, and FIG.
FIG. 3 is an elevational view showing the general transport stroke of a molded article similar to that shown in the figure; 6... Supply conveyor, 9, 9a, 9b...
...1ull sending arm, 10... sending conveyor, 65... vertical chamber 5 inner shaft, 67, 68, 104... connecting beam,
69.101,102...Air cylinder for lifting and lowering, 141...Painting agent recovery device is a tray, 142...
...Painting agent collection receptacle is a tray support unit cooling device. Patent applicant Shigeo Ando Agent Hideo Takino 6 Figure 2

Claims (3)

[Claims] (1) At least one molded product pedestal located between the supply conveyor and the outgoing conveyor, a corresponding small number of molded product pedestals located above the pedestal, and at least one type of paint gun located between both conveyors and the pedestal. It consists of a plurality of transport arms that move between adjacent locations, and a progressive transport mechanism that supports and drives the transport arms, and is characterized by a paint collection container placed below the molded product holder for painting. Cement mortar molded product coating equipment. (2) A patented coating device characterized in that a cooling device is provided below the coating agent recovery container. (3) at least one molded product pedestal disposed between the supply conveyor and the delivery conveyor, at least one corresponding type of paint gun disposed above the pedestal, and adjacent to both conveyors and the pedestal; multiple transport arms that move between locations;
a progressive conveyance mechanism supporting and driving the conveyance arm, the conveyance mechanism including a plurality of vertical guide shafts moving horizontal guide shafts, the plurality of vertical guide shafts being connected and driven by an air cylinder; This is a coating device for cement mortar molded products that is driven by a combined lifting air cylinder in which multiple conveying arms that move on a vertical guide shaft are connected, and the multiple conveying arms are placed inside and only the two outer arms are lifted and lowered. is longer than the other arms and travels more than the vertical thickness of the conveyor, but
The coating apparatus described above is characterized in that the other arms are arranged so that their lowest end positions are at least somewhat lower than the conveyor surface.