JPH0699066B2 - Long horizontal stripping veneer deposition device - Google Patents

Description

Detailed Description of the Invention

(Field of Industrial Application) The present invention has a long crease size, for example, 6 to 8 liters, which is handled for processing a back plate or an intermediate plate in a veneer manufacturing process, and has a value of 0.
A large number of small veneer veneers with a relatively thin plate thickness of about 5 to 1.5 mm are connected in a comb shape by hot melt resin or adhesive thread and horizontally stripped, and this is further made into a predetermined width for 3 to 4 呎The present invention relates to a deposition device for a long horizontal strip veneer that is cut and carried out. (Prior Art) As a conventional veneer veneer sorting apparatus, for example, those disclosed in JP-B-54-43265 or JP-A-48-65664 are known. In the former, the effective veneer cut into a width with a cutting blade of a slicing device is closely or close to closely packed and is placed on the elevating table at the stacking position on a supporting member, and the lower surface of the carry-out conveyor is used. The effective veneer is carried out in a state where it is pressed in the vicinity of both the wood mouths, and the supporting member is opened at the same time when the carrying out is completed, so that the effective veneer is dropped and accumulated on the lifting table all at once. In the process, a plate-shaped body made of a single plate cut into a standard size is arranged above the loading device and a conveyor belt is arranged vertically above and below the conveyor belt. A plurality of elongated belts and the like to be inserted into the support, and the plate-like body is conveyed to a fixed position on the stacking device by the frictional force of the conveyor belt, and the support after the conveyance of the plate-like body is completed. Back It is intended to fall stacking the plate-like body sequentially stacking location from the tip. (Problems to be solved by the invention) However, in the conventional technology, the long ruled dimension of a long crease which is handled for processing a back plate or a middle plate in a veneer manufacturing process,
For example, a narrow veneer veneer with a long ruled dimension for 6 or 8 stools is connected in a comb shape with a hot-melt resin or adhesive thread and laterally stripped to a predetermined width, for example, for 3 or 4 stools. It is used for stacking long horizontal strip veneers for back and middle plates, which are cut into a specified width for use and are often carried out, most of which are relatively thin veneer veneers of around 0.5 to 1.5 mm. In the former case, since the lower surface of the carry-out conveyor is used to carry out the veneer while pressing the vicinity of both wood mouths on the support member, as in the case of the long lateral strip veneer, it is extremely close to both wood mouths. In the case of the appearance of cracks (a phenomenon in which the veneer of a veneer becomes wavy), cracks occur at both the vacancies of the long horizontal stripped veneer, which deteriorates the quality, and after the aforesaid cracks occur. There was a fear of causing problems such as adversely affecting the deposition processing operation of In the latter case, when the support body that horizontally supports the long horizontal strip veneer is retracted at the loading place, the long horizontal strip veneer hangs downward from the front side. As a result, the small-width veneer veneer can be bent with the excessive self-weight corresponding to the hanging portion applied to the joining part of the veneer veneer, causing the hot melt resin or adhesive thread at the joining part to peel off from the veneer surface. However, there is a problem in that a large number of defective horizontal stripped veneer products are produced in the final deposition step. (Means for Solving the Problem) The present invention has an object to solve the above problems, and a long horizontal strip formed by connecting a plurality of veneer veneers having a small width with a connecting member in a comb shape and cutting to a predetermined width. A plurality of parallel stacking intermittent conveyors that are continuously provided above the carry-out side of the carry-out conveyor that carries out veneers, a stacking loading / unloading bar erected in the lower part of the intermittent conveyor, and both sides below the loading / unloading bar. Is a stacking device of a long horizontal strip veneer composed of an open / close bar for open / close installed in close proximity to the open / close bar, and an intermittent drive mechanism is provided between the drive shafts of the intermittent conveyor and the carry-out conveyor. The intermittent conveyor can be intermittently driven in synchronization with the transport speed of the carry-out conveyor, and the chain drive device and the chain drive device are activated when the long horizontal strip veneer arrives at the carry-in / out bar on the carry-out conveyor. of Equipped with an intermittent drive mechanism for intermittent control, supporting the long horizontal strip veneer from below when moving the entrance / exit bar forward and transferring it to just above the deposition site, and when retracting the long horizontal strip veneer. The support is cut off from below, and it can be dropped directly below, and further, the opening and closing bar for the middle holding is supported flatly near the both mouths of the long horizontal strip veneer when the entrance and exit bars move forward and backward. It is characterized in that an opening / closing operation mechanism is provided which is operated to close and to open so as to disconnect the bearing when the retreat is completed.

[Work]

To explain in detail with reference to FIGS. 3A to 3D, a narrow veneer veneer having a long scoring size, for example, a predetermined width cut by the long scoring size for 6 圌 or 8 呎, for example, for 3 圎Is a small veneer veneer that is less than the standard width for 4 ha, and is horizontally stripped by connecting a number of veneer veneers with a hot-melt resin or adhesive thread in a comb shape.
This is further cut into a predetermined width similar to the above, and the carry-out conveyor 1
For the long horizontal strip veneer 2 in the horizontal stripping process that is carried out upward, an intermittent conveyor 3 for deposition continuously provided above the carry-out side of the carry-out conveyor 1 and a chain drive device below the intermittent conveyor 3. The loading / unloading bar 4 for accumulation, which is erected in and out by means of the above, and the like, is operated in synchronization with the speed of the carry-out conveyor 1 so as to actuate it toward the forward side. By the cooperative transfer action of the intermittent conveyor 3 and the loading / unloading bar 4, 2 is sequentially transferred to immediately above the deposited product 5 which is the deposition site in front (see FIGS. 3A to 3D). Then, the arrival of the long horizontal strip veneer 2 immediately above the deposited product 5 which is the deposition location, its edge is detected by a photoelectric switch or the like, and the electromagnetic clutch brake or the like in the drive unit of the intermittent conveyor 3 is activated. By stopping the drive to stop the transfer operation and operating the chain drive device of the input / output bar 4 to move backward, the long lateral strip veneer 2 on the input / output bar 4 can be operated. Is an open / close bar 6 for middle-holding, which is pulled out rearward only by the entrance / exit bar 4 while keeping its upper surface stopped by the intermittent conveyor 3 and falls directly below to be installed on both sides.
It is supported horizontally on a and 6b by temporarily supporting the vicinity of the both mouths (see Figures 3B to 3C). Since the drop distance from the entrance / exit bar 4 to the opening / closing bars 6a, 6b can be designed to be a close distance of usually several millimeters or less, the hanging phenomenon of the long horizontal strip veneer 2 at the time of withdrawal of the entrance / exit bar 4 also occurs. Staying within the range, the weight of the drooping part hanging at the joining point becomes so delicate. Therefore, the long lateral strip veneer 2 is temporarily held by the open / close bars 6 installed on both sides immediately below while supporting the vicinity of the both ends of the bar. Of course, the supporting form of the long lateral strip veneer 2 at the time of this middle holding is that the middle part is bent downward with a large bow with the vicinity of both the wood mouths being up, but at this time the big bow bending Is a curve in the fiber direction,
Hot melt resin due to excessive self-weight and bending action at individual connecting points, such as when bending downward in the direction orthogonal to the fiber direction by pulling back the support such as the entrance / exit bar 4 or the like. There is no unforeseen situation in which the adhesive thread or the adhesive thread is peeled off from the single plate surface. Next, the long horizontal strip veneer 2 temporarily held on the open / close bar 6 is attached to the open / close bar 6.
By activating the to the open side and releasing its holding
The entire product falls directly on top of the deposited product 5 directly underneath and is bent in a bowed shape, and is sequentially deposited (see FIGS. 3C to 3D). Therefore, even for a large drop in the middle part, which is usually 20 mm or more, due to the depression of the middle part due to the cracks in the vicinity of the both mouths of the long horizontal strip veneer 2 formed in the normal deposition work, Since this middle part is in the state of falling with a large bow downward and curved, it is possible to finish the deposition work very safely without any trouble even with its large drop, and the long horizontal stripping unit alone. Since the exposed portions of the plate 2 in the vicinity of both the wood mouths are not subjected to any pressing force at the time of conveyance, there is no possibility that cracks will occur and the quality will be deteriorated, and that the cracks will not hinder the deposition work. (Embodiment) Next, with reference to FIGS. 1 and 2, an embodiment of the apparatus for depositing a long horizontal stripping veneer of the present invention will be described. Referring to FIG. 1 and FIG. Well-known veneer horizontal stripping machine 7 that laterally strips by connecting multiple blinds with adhesive yarn
The continuous long horizontal strip veneer 8 produced by the above is cut into a predetermined width by the cutting machines 9a and 9b and carried out on the carry-out conveyor 1. Due to the synergistic action of the intermittent conveyor 3 for deposition, which is continuously provided above the latter stage of the conveyor 1, and the loading and unloading bar 4 for loading and unloading, which is installed below the intermittent conveyor 3, the long horizontal stripping operation in the carrying-out process is performed. The veneer 2 is sequentially transferred to directly above the deposited product 5, which is the deposition site in front. An intermittent driving mechanism 10 such as an electromagnetic clutch brake is inserted between the stacking intermittent conveyor 3 and the drive shaft of the carry-out conveyor 1 to enable intermittent driving in synchronization with the same transport speed. The driving mechanism of the loading / unloading bar 4 includes a chain driving device 11 which rotates in synchronization with the transport speed of the unloading conveyor 1 as shown in the drawing, for example, an electromagnetic clutch brake for intermittent control. The drive mechanism for the loading / unloading bar 4 is equipped with the intermittent drive mechanism 12 etc., and the intermittent drive mechanism 12 is activated by detecting the long horizontal strip veneer 2 arriving on the carry-out conveyor 1 by a photoelectric switch or the like. Thus, when the in-and-out bar 4 is moved forward, the long horizontal strip veneer 2 is supported from below and is transferred to just above the deposition site, and when it is retracted, the long horizontal strip veneer 2 is placed below. Refuse support from In which is configured to be dropped immediately below the. Furthermore, air cylinders 13a, 13b are provided on both lower sides of the access bar 4.
The open / close bars 6a, 6b for middle holding, which can be opened / closed to the left or right or downward by an operating mechanism such as the above, are installed at a close distance, and the long horizontal side which is delivered with a slight drop when the entrance / exit bar 4 is retracted. It is constructed so that the area around both mouths of the veneer veneer 2 is supported flat, and the whole fiber is temporarily supported horizontally while the fiber direction is curved in a somewhat bow shape as shown by the broken line in FIG. There is. Next, the opening / closing bars 6a, 6b are actuated by the actuating mechanisms such as the air cylinders 13a, 13b to open the opening / closing bars 6a, 6b. The intermediate portion of the piled product 5 is dropped while curving in a bow shape to complete a series of stacking operations. In this case, the adjustment of the deposition level of the deposited product 5 is automatically performed by activating the elevating table 14 to the descending side when the highest portion thereof is detected by a photoelectric switch or the like installed at an appropriate place, and the accumulation thereof is performed. It is also possible to arbitrarily attach an automatic take-out device or the like for the product 5. (Advantages of the Invention) As described above, according to the present invention, the long lateral strip veneer is configured so as not to cause a large frontward hanging phenomenon during deposition. Due to the peculiarity of the plate, the long drop between the falling place and the uppermost surface of the stack, which is inevitably formed, causes the long horizontal strip veneer at the time of stacking to drastically hang down in the front. Due to the action, the hot melt resin and the adhesive thread at the joining point peeled off from the veneer surface, and there was a serious difficulty in producing many defective products at the final deposition location. According to the invention, even when the hot melt resin and the adhesive yarn are not sufficiently cooled and solidified immediately after the lateral stripping work by the high-speed work, even when the bonding strength is weak, excessive self-weight and bending are caused during the stacking operation. Actions at individual connection points It is an excellent product that can produce high-quality long horizontal strip veneer products efficiently and stably without giving it, and without causing cracks in the cracked parts near both wood mouths that are peculiar to the long horizontal strip veneer. It has the following features.

[Brief description of drawings]

FIG. 1 shows an example of an embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a front view, and FIGS. 3A to 3D are explanatory views of operation. 1 ... carry-out conveyor, 2 ... long horizontal strip veneer, 3 ... intermittent conveyor, 4 ... loading / unloading bar, 6a, 6b ... opening / closing bar.

Claims (1)

[Claims] 1. A plurality of parallelly arranged veneer veneers of a small width are connected to each other in a comb shape by a connecting member and are cut out to a predetermined width. From the intermittent conveyor for stacking, the loading / unloading bar installed in the lower part of the intermittent conveyor so that it can freely move in and out, and the open / close bar for intermediate holding that is installed openably and closably close to both lower sides of the loading / unloading bar. A long horizontal stripping veneer stacking device, wherein an intermittent drive mechanism is provided between the drive shafts of the intermittent conveyor and the carry-out conveyor so that the intermittent conveyor can be driven intermittently in synchronization with the transfer speed of the carry-out conveyor. In addition, the input / output bar is equipped with a chain drive device that is activated when the long horizontal strip veneer arrives on the carry-out conveyor and an intermittent drive mechanism for intermittent control of the chain drive device, and the advance / receipt of the input / output bar. Sometimes before The long horizontal strip veneer is supported from below and transferred to just above the deposition site, and at the time of retreat, it is possible to drop the support from under the long horizontal strip veneer and drop it directly below. An opening / closing mechanism for opening and closing the open / close bar for middle holding so as to flatly support the vicinity of both the wood mouths of the long lateral strip veneer when the in / out bar moves forward and backward, and opens so as to cut off the support when the backward movement is completed. An apparatus for depositing a long horizontal stripped veneer characterized by being provided with.