JPS6254663A - Wet type sander machine - Google Patents

Abstract

PURPOSE:To enable the improvement of drying efficiency through the concurrent application of polishing and drying processes at a single stage in a wet type sander machine for lumber and the like by providing an air curtain for blowing pressurized air to dry up flushing liquid and a water suction hopper. CONSTITUTION:Between a tension roller 'a' and a trailing roller 'c' is provided one set of reducing rollers 'e' and 'e'' inside and outside, and a feed water nozzle 'f' is provided between the outer reducing roller 'e' and a sanding roller 'd', with a water tray 'g' thereunder. And a blow hopper 'i' is provided at the outer feed end of the trailing roller 'c' for blowing pressurized air to a workpiece, and an air curtain 'j' is constituted. When a workpiece has been fed via a conveyer belt 9 extended between conveyer rollers 8 and 8', the workpiece as polished and wet is dried by said air curtain 'j'. Also, a water suction hopper 'k' is fitted below the feed water nozzle 'f', and flushing water as squeezed by the reducing rollers 'e' and 'e'' are dehumidified and pressurized by a suction dust collecting and dehumidifying machine 'l'. Water is so converted into high-pressure air for re-use.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a wet sander equipped with an air curtain that blows pressurized air at the delivery end of a processed material.

(Prior art) A sander machine that polishes a workpiece by wetting a sanding belt or a sanding paper wrapped around the outer periphery of a polishing drum with a cleaning liquid is called a wet type or water set, and the supply of cleaning liquid is cut off. And II! , is known in a large number of forms, which can also be converted into dry polishing.

(Problem to be solved by the invention, α) In the above-mentioned wet type sander machine, which is called a water type sander machine, etc., the processed material is hygroscopic wood in most cases.
The processed material absorbs a small amount of cleaning liquid on its surface and is sent out in a state that requires drying. For this reason, a large storage space is required for natural drying, and drying is extremely inefficient. However, these drawbacks of the conventional machine are problems that need to be solved.

(Means for Solving the Problems) The present invention is aimed at solving the above-mentioned drawbacks in the surface top section. The method is characterized in that an air curtain is provided that blows pressurized air, and the workpiece is passed through the air curtain at the delivery end.

Embodiments FIGS. 1 to 6 outline several embodiments of the present invention.

Figure 1 shows a wide belt sander in which a sanding bell (d) running in the arrow direction is attached to a tension roll (a), a drive roll (b), and a driven roll (C) arranged in a triangle. A pair of inner and outer sanding rolls e, e' on the running part of the sanding bell between a) and d,
A water supply nozzle f that injects cleaning water from the lower surface between the outer squeezing roll e and the sanding bell) d, and a water receiver is a tray 9.
and is connected to a pressurized air supply device at the delivery end, which is the outside of the driven roll C, and the
The pressurized air blown from the air curtain forms an "air curtain."

Figure @2 shows a sander machine with the same configuration as in Figure tlfJ1, with a pair of inner and outer squeezing rolls e and e' in the running section between the driven roll C and tension roll a, and the outer squeezing roll e and sanding bell) d. A water supply nozzle f for injecting cleaning water from the upper surface between them and a tray 9 for the water receiver on the lower surface are provided, and a blowing hopper l for blowing pressurized air onto the workpiece is provided at the delivery end, which is the outside of the driven roll C. The pressurized air blown from the hopper 5 constitutes an air curtain j.

In this embodiment, the cleaning water squeezed from the sanding belt d by the water supply nozzle f and the water supply nozzle f and immediately below it is sucked up by the water absorption hopper by squeezing rolls e and e'', and is installed in the dust collection and dehumidification 8!L. By the processor,
The cleaning water accumulated on the squeezing roll e is sucked up by a water absorption hopper, and the sucked up air is sent to the dust collection and dehumidification filter fi.
The air is dehumidified by L, converted to pressurized air, and then blown out from the blow-off hopper 1. Figure 3.4 shows a sander machine in which a sanding bell) d is attached to the upper tensitan roll m and the lower sanding roll 1, and the sander 5.
Figure 6 shows a sander in which the outer periphery of the polishing roll 0 is wrapped with sanding paper cloth ρ, and the sander shown in Figure 3.5 has a squeeze roll e%e' as shown in Figure 1.
, a water supply nozzle f, an air curtain consisting of a water tray 9, a pressurized air supply device, and a blow-off hopper i. In addition, as shown in Figure 4.6, the sander machine includes squeezing rolls e and e' as shown in Figure 2, a water supply nozzle f, a water tray 9, a water absorption hopper, and a dust collection and dehumidification device. An air curtain jfi constituted by a blow-off hopper l is provided.

Figures 7 to 9 show the wide belt sander shown in Figure 2 in more detail, with (1) the 7-frame installation and (2) the 7-frame installation (1). It is a gate-shaped 7-frame frame whose outside is covered with a cover, and the roll C etc. are installed in the gate-shaped frame (2), and a replacement port (4) for the sanding bell (d) is provided on the side of the cover (3). Attach the opening/closing door (5) with a hinge and sanding bell)
Below d, the material feeding frame (7) supported by the lifting screw (6) on the installation seven frame (1) is passed through the gate shape of the gate-shaped seven frame (2), and the material feeding frame (7) is A material feeding belt (9) that is passed horizontally across the material feeding rolls (8) and (8'') before and after the material feeding roll (8), a motor (10) that drives the material feeding roll (8) or (8'), and a lifting/lowering A handle (11) is provided for raising and lowering the material feed 7 frame (7) by driving the web 6).The above configuration is all well known and will not be described in detail.

Squeezing rolls e, e', water supply nozzle f1, water tray 9, etc. are installed inside a gate-shaped 7 frame (2) with the arrangement shown in Fig. 2, and the water supply nozzle is installed inside the frame (2). Attach a wash water tank (12) that sends out wash water under pressure. In addition, the left and right sides of the embossed roll e1e' and the water supply nozzle f are large, and even if the opening/closing mechanism N (5) is opened, the cover (3) cannot be reached all the way, so the cover (3) is attached using a hinge shaft.

As shown in Figure 9.10, the blow-out hopper i has a cylindrical part (14) to which a large-diameter pressure-resistant hose is connected to the end, and a flat blow-out port (16) that expands downward from the cylindrical part (14) to form an air curtain j. ) with a triangular section (15) between the The opium (17) made of shaped steel etc. is attached to the triangular part (15) with a bracket (18) as shown in Figure 10, and the upper and lower shafts are connected in a straight line to the right end of the opium (17) in Figure 9. (19) is attached, and the shaft (19) is fitted from above and below into the shaft support piece (20) attached to the gate-shaped 7-frame (2) via the cover (3).

In addition, a connecting piece (
21) and the connecting piece (21) to the cover (3).
When it is necessary to open the inspection door (13), remove the bolt (22) and shake the blow-off hopper i horizontally about 90" before opening the inspection door (13). move.

In Figure 8, (23) is a 1fiL dust collector and dehumidifier placed on the side of the wide belt sander ring, and when used in a dry type without jetting cleaning water, it can be used as a dust collector and dehumidifier as usual. use. The same fiL is an air discharge path (2
3) is connected to the discharge hopper (24), (25) with a suction pump installed on the upper side of the portal frame (2),
A large diameter hose (not shown) extending outside the factory or to a corner of the factory is connected to the discharge hoppers (24) and (25). When the wide belt sander is used as a wet type sander by supplying cleaning water, the atomized cleaning water and the water contained in the cleaning water are A filter device is provided to separate wet dust from the washing water and the dust is discharged from the hoppers (24) and (2).
5), it is discharged outside the factory or to a corner of the factory, and only the remaining pressurized air is converted into the pressurized air of the present invention, which is sent to the cylinder g (14) of the blow-off hopper 5 and is ejected from the blow-off port (16). .

The pressurized air supply device used in the embodiment shown in Fig. 1.3.5 is installed separately from the dust collector and dehumidifier shown in Fig. 8.

The first embodiment is implemented on the wide belt sander shown in Figs. 7 to 9, and the only difference is that a pressurized air supply device is separately installed.

The embodiment shown in FIG. 4.6 uses a dust collection and dehumidification fiL having a performance similar to that shown in FIG.

In any of the above embodiments, it is more effective to heat the pressurized air that blows out from the blow-off hopper i to form the air curtain than to use pressurized air at room temperature. Therefore, a heating device suitable for the season of use, the material of the processed material, etc. is provided in the blow-off hopper 5 or in the pressurized air supply path up to the hopper 1. The embodiment of Figure 2.4.6 provides a heating device in the pressurized air supply rah. (M and 1 Effect of the Invention) The present invention allows the processed material discharged from the exit side of a conventionally used wet sander to transfer moisture by the sanding paper cloth wrapped around the sanding belt or the polishing drum. By using a configuration in which a pressurized air bath is applied while passing through an air curtain, drying is not required after delivery (or it can be used with slight drying, and it can also be used in a wet method). By attaching it to a sander that can be used, grinding, polishing, pressurizing, and drying the processed material are carried out in a continuous process, and the drying efficiency can be improved.Also, the embodiment of claim (2) By doing so, the dust collected on the sanding belt or the squeezing roll of the cleaning water that supplies moisture to the sanding paper cloth is sucked up by a dust collector and water remover, and the moisture and dust are removed and the converted pressurized air is blown. This embodiment has the effect of reducing the amount of pressurized air consumed.

[Brief explanation of drawings]

The accompanying drawings show embodiments of the present invention, and FIGS. 1 to 6 are side views of each embodiment, and FIG. 7 is a partially cutaway side view of a wide belt sander ring to which the embodiment of FIG. 2 is applied. FIG. 8 is a front view of the same, FIGS. d → Sanding belt e1e′ → Squeezing roll f → Water supply nozzle 9 → Water receiver is tray h → Pressurized air supply device l → Blow-off hopper j →
Air curtain → Water absorption hopper L → Dust collector and dehumidifier → Tension roll

Claims (1)

[Scope of Claims] 1) In a sander machine that polishes a workpiece by wetting a sanding paper cloth wound around a sanding belt or an abrasive drum with a cleaning liquid, the sanding paper is transferred to the workpiece at the workpiece delivery end of the machine. A wet type sander is provided with an air curtain that sprays pressurized air to dry the cleaning solution, and the workpiece is passed through the air curtain while applying a pressurized air bath to the surface of the workpiece at the delivery end. 2) Washing water is poured from above the squeezing roll that is in contact with the sanding belt or sanding paper cloth from the outside, and the washing water that accumulates above the squeezing roll is sucked up by a water absorption hopper that communicates with the dust collector and dehumidifier, and the dust is collected. The sander machine according to claim 1, characterized in that an air curtain is provided at the delivery end of the dehumidifier to separate moisture and convert it into pressurized air, and to blow the pressurized air from a blow-off hopper. .