JP2001182000A - Producing apparatus for paper molded container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a producing apparatus for a paper molded container capable of achieving improvement in dimensional accuracy and productivity of the molded product, cost reduction and labor saving. SOLUTION: This apparatus is equipped with a female mold body 120 composed by mounting a female mold 121 on a female mold jig stand 122 and a male mold body 110 composed by mounting a male mold 111 on a male mold jig stand 112 capable of fastening the female mold body 120 by a fastening bolt 113 and comprises a paper molding mechanism 10 for making a paper from a raw material fluid M of a pulp to mold a water-containing molded container Wa in a paper molding step 1, a fastening mechanism 20 for fastening the female mold body 120 to the male mold body 110 with the fastening bolt 113, dehydrating water in the clamped water-containing molded container Wa to mold a dehydrated molded container Wb and setting a pressing mold body 100 capable of applying set pressure to the dehydrated molded container Wb in a dehydration molding step 2 and a heating mechanism 30 for heat-drying the dehydrated molded container Wb in the pressing mold body 100 to mold a dried molded container Wf having a prescribed form in dry molding steps 3A to 3D.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a papermaking molded container having a predetermined shape by papermaking a pulp raw material liquid, dehydrating and drying in a molding die.

[0002]

2. Description of the Related Art In a conventional apparatus for manufacturing a papermaking molding container, a water-containing molding container is compressed and dehydrated in a molding die by a press mechanism, and is dried. Therefore, it was sequentially transferred to many press mechanisms and dried. In this case, the manufacturing cost of the apparatus becomes expensive, and the installation floor area becomes large, which hinders improvement in productivity, cost reduction, and labor saving. JP (hereinafter referred to as Conventional Publication A) and JP-A-11-50400 (hereinafter referred to as “Publication A”).
The invention disclosed in, for example, a conventional publication B) is known.

[0003] In the former prior art A, the movable type that intermittently turns horizontally around the rotation axis is sequentially turned to the first to fifth stations arranged around the rotation axis to stop the movable type. In one station, a muddy wood fiber raw material having fluidity is filled in the closed space between the movable mold and the first mold to be dehydrated to form a temporary molded body. Impregnating the temporary molded body with the liquid agent,
In the third station, the temporary molded product with the liquid material was dried, and in the fourth station, the temporary molded product with the liquid material in the dry state was heated and pressed in the closed space between the movable mold and the second molding die, and was solidified by the curing agent. A wood-based molding base material is formed, and at the fifth station, the wood-based molding base material is taken out of the movable mold.

Further, in the latter invention of the prior art publication B, in the first step, the raw material is stirred and dissolved in a dissolving tank, and in the second step, the melt obtained in the previous step is sent to a perforated pipe to be dehydrated and transferred. In the third step, the dehydrated product obtained in the previous step is poured into a perforated mold, compression-molded by a high-pressure hydraulic press and taken out of the perforated mold, and in the fourth step, the molding obtained in the previous step is obtained. Is placed in a drying room of an infrared boiler and dried.

[0005]

However, in the invention of the prior art A, the molded body is separated from the molding die and the pressing member every time it is sequentially turned to the first to fifth stations, and the compression and the separation are repeated. Since a wooden base material is formed, there is a problem that the shape accuracy of the formed body is poor. In particular, in the third station, since the pressing force to the movable mold is released to dry the temporary molded body with the liquid agent, plastic deformation tends to occur due to thermal strain. It is difficult to form into a predetermined shape even by heating and pressing in the closed space.

Further, the drying time in the third station is longer than that in the other stations, and the cycle time for intermittently turning each movable die becomes longer, so that the productivity is poor and the production cost of the molded body is high. There was a problem of becoming. In order to solve this problem, each movable mold or molding die should be able to insert a large number of molded bodies, or
If a plurality of drying steps are provided in the third station, the cycle time can be reduced, but it is difficult with the structure of the present invention.

[0007] Next, in the invention of the conventional publication B, after compression molding by a high hydraulic press machine in the perforated mold of the third step, it is taken out from the perforated mold and dried in the drying chamber of the fourth step. However, there has been a problem that plastic deformation is likely to occur due to thermal strain, and the shape accuracy of the molded body is poor. In particular, since there is no step of pressure molding after the drying in the fourth step, it is difficult to mold into a predetermined shape.

[0008] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a method for drying a container in a molding die without continuously applying pressure. Problems such as poor shape accuracy, high manufacturing cost of equipment to improve cycle time, large installation floor area, hinder improvement of productivity, cost reduction, labor saving, etc. Is to solve.

[0009]

In order to achieve the above object, according to the present invention, there is provided a lower mold having a lower mold attached to a lower mold jig, and placing the lower mold in a lower surface position. An upper mold body with an upper mold attached to an upper mold jig that can be tightened with a fastening bolt is provided,
A papermaking molding mechanism for forming a pulp raw material liquid into a hydrated molding container in the papermaking molding process, and a moisture content of the hydrated molding container in which the lower mold body and the upper mold body are clamped and clamped by the fastening bolt in the dehydration molding process. And a fastening mechanism for forming a dehydration molding container into a pressurized mold body capable of applying a set pressing force to the dehydration molding container, and heating and drying the dehydration molding container in the pressurized mold body in a drying molding step to a predetermined shape. And a heating mechanism for forming the pulp raw material liquid into a papermaking molded container, dewatering molding and drying molding to produce a papermaking molded container.

According to the first aspect of the invention, the dehydration molding container is formed by dehydrating the moisture of the water-containing molding container clamped by clamping the lower die and the upper die, and forming the dehydration molding container. Since the fastening mechanism is provided for the pressurized mold body capable of applying the set pressurizing force, when the dehydration molding container is dried in the drying and molding step, the set pressurizing force is constantly applied to the container in the pressurized mold body. In addition, there is no plastic deformation due to thermal strain, and it acts to maintain the shape accuracy of the dried dry-formed container.

Further, since the set pressing force is constantly applied to the container in the pressurized mold, a press mechanism for pressurizing the lower mold and the upper mold is not required in the drying and forming step, and during the drying, Also acts to promote the dehydration of the water remaining in the dehydration molding container. Since a press mechanism is not required, the cycle time can be reduced by providing a plurality of dry forming steps and sequentially transferring the pressurized molds to each heating mechanism. Further, automation of the manufacturing apparatus can be easily achieved.

Next, according to a second aspect of the present invention, a disc spring is provided on the upper mold jig of the upper mold body, and a set pressure is applied to a container in the pressurized mold body by tightening a fastening bolt. It was made.

According to the second aspect of the present invention, since the pressure applied to the container in the pressurized mold body is applied by the disc spring, water mixed with the container composition such as cellulose fiber is dehydrated. Even if the volume is reduced by dry evaporation, the set pressure can always be applied to the container in the pressurized mold. In other words, if the number of disc springs, the direction in which the disc springs are overlapped, and the amount of tightening of the fastening bolts are set from the relationship between the volume reduction amount of the container (the amount of deflection of the disc spring) and the set pressing force, the container in the pressurized mold can be set. Can be applied with a set pressure. Further, since the disc spring can be housed in the small volume space, the pressurized body can be simply configured.

According to a third aspect of the present invention, the fastening mechanism is provided with a bolt rotating means capable of rotating a fastening bolt to fasten the lower mold body and the upper mold body. Things.

According to the third aspect of the present invention, since the fastening bolt for fastening the lower mold body and the upper mold body is rotated by the bolt rotating means, it is set in the container in the pressurized mold body. When the pressing force is applied, the pressing force to be applied to the container in the pressurized mold body can be set by setting the tightening amount of the fastening bolt, that is, the number of rotations of the bolt turning means. Further, the configuration of the fastening mechanism can be simplified.

Next, a fourth aspect of the present invention is the downstream step of the drying and forming step, wherein a decomposing mechanism for separating the pressurized die into a lower die and an upper die in the die decomposing step, and a drying mechanism in the container discharging step. And a discharge mechanism for discharging the molded container from the upper mold.

According to the fourth aspect of the present invention, the disassembling mechanism for separating the pressurized mold body and the discharge mechanism for discharging the dry molded container from the upper mold body are provided in the downstream step of the dry molding step. Automation can be easily achieved such that the pressurized mold body from the dry forming step is separated in the mold disassembling step, and the dry formed container is discharged in the container discharging step.

Next, an invention according to claim 5 is characterized in that, in the vicinity of each of the steps, an upper mold body transferring means for transferring the upper mold body, a lower mold body transferring means for transferring the lower mold body, and a pressurized mold body. And a pressurized mold body transferring means for transferring the upper mold body, the lower mold body, or the pressurized mold body to each step in each form and sequentially circulate them.

According to the fifth aspect of the present invention, the upper die body is provided with the upper die body transfer means, the lower die body transfer means, and the pressurized die body transfer means in the vicinity of each step. From the mold disassembling step to the dewatering molding step through the container discharging step and the papermaking molding step, the lower mold body is transferred from the mold disassembling step to the dehydration molding step, and the pressurized mold body is dried from the dehydration molding step to the dry molding step. Each mold can be circulated individually by sequentially transferring the mold to the mold decomposition process through the process. Therefore, the container of each process can be automatically transferred together with each mold.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the papermaking container manufacturing apparatus according to the present invention will be described below with reference to FIGS.

FIG. 1 is a top view showing the entire apparatus, and FIG. 2 shows a paper making mechanism, a fastening mechanism, and a heating mechanism, and FIG.
FIG. 3 is an enlarged sectional view showing a paper making mechanism, FIG. 4 is an enlarged sectional view showing a fastening mechanism and a heating mechanism, and FIG. 5 is a sectional view showing a heating mechanism and a disassembling mechanism. FIG. 6 is a sectional view taken along arrow B-C of FIG. 1 showing a discharge mechanism, and FIG. 7 is a longitudinal sectional view showing a pressurized mold body.

As shown in FIG. 1, the apparatus for manufacturing a papermaking molded container according to the present embodiment includes a papermaking molding step 1, a dehydration molding step 2, a first dry molding step 3A to a fourth dry molding step 3D, and a mold disassembling step 4. And a container discharging step 5 are sequentially provided. In the first paper making process 1, as shown in FIG. 3, a paper making mechanism 10 for making a pulp raw material liquid M and forming it into a water-containing forming container Wa is provided. In the next dehydration molding step 2,
As shown in FIG. 4, the lower mold body 120 and the upper mold body 110 are fastened with the fastening bolts 113 to dehydrate the water-containing molded container Wa formed in the papermaking molding step 1 to thereby dehydrate the water-containing molded container Wa. A fastening mechanism 20 is formed to form the pressurized mold 100 that can form Wb and apply a set pressure to the dehydration-molded container Wb.

As shown in FIG. 4 and FIG. 5, in the first to fourth dry molding steps 3A to 3D, the pressing mold 10
The dehydration-molded container Wb inside the container 0 is dried by heating and the first
A heating mechanism 30 for forming the dry-formed container Wc to the fourth dry-formed container Wf is provided. In the next mold decomposition step 4,
As shown in FIG. 5, a disassembling mechanism 40 for separating the pressurized mold 100 into a lower mold 120 and an upper mold 110 is provided. In the last container discharging step 5, as shown in FIG. 6, a discharging mechanism 50 for discharging the papermaking container Wg from the upper die body 110 is provided.

Next, the pressurized mold 100 for molding the papermaking container Wg will be described. This pressurized mold 10
7, a lower mold body 120 and an upper mold body 110 are formed as shown in FIG. 7. The individual fine holes are drilled and attached to the lower jig table 122. In the upper mold body 110, the upper mold 111 has a plurality of not-shown fine holes through which water can flow in the female mold surface, and is attached to the upper mold jig table 112. .

Four sets of disc springs 114 are buried in the edge of the upper jig table 112, respectively. These disc springs 1
14, four fastening bolts 113 are respectively inserted, and the male screw portion at each tip protrudes from below the upper jig base 112,
The lower jig table 12 facing the upper die body 110 at a lower position.
It is set to a length that can be screwed into the second female screw. A collar 115 is interposed in the seat of the disc spring 114, and the hexagonal head of the fastening bolt 113 is in contact with the collar 115.

In the dehydration molding step 2 shown in FIG. 4, the water-containing molding container Wa is sandwiched between the lower die 121 and the upper die 111 configured as described above, and the fastening bolt 113 is attached to the lower jig base. By screwing it into the female screw of 122 and tightening it,
The water-containing molded container Wa is compressed, and water mixed with the container composition material such as cellulose fiber is allowed to flow out of each micropore to be dehydrated, thereby forming the dehydrated molded container Wb. When the fastening bolt 113 is tightened by a set amount, the pressurizing mold 100 is configured to apply a set pressing force to the dehydration molding container Wb by the urging of the disc spring 114. The dewatering-molded container Wb is constantly pressurized in the bending region of the disc spring 114.

Next, the paper making mechanism 1 in the paper making step 1
0 will be described. The paper making mechanism 10 is a mechanism for forming a pulp raw material liquid M into a water-containing forming container Wa. As shown in FIG.
The pulp raw material liquid M is provided inside the support base 129 on the base 31, and the pulp raw material liquid M can be stored in the paper making tank 130. 134. Then, the hydraulic cylinder 13 for moving the support table 134 up and down
3 is attached to the lower surface of the table 131, and the piston rod 135 of the hydraulic cylinder 133 penetrates the table 131 and the tip is fixed to the lower surface of the support table 134.

Further, a suction pipe 137 for sucking the pulp raw material liquid M in the paper making tank 130 through the paper making wire mesh 132 is provided on a support 134 of the paper making wire mesh 132, and the suction pipe 137 is connected to the table 131. The suction pump 1 is inserted through a guide cylinder 136 inserted through the
38 and this suction pump 138
2 is connected to a recycle tank 139 for circulating the pulp raw material liquid M sucked into the inside of the papermaking tank 130.

On the other hand, a pair of rails 140, 140 are provided at the upper end of the support base 129 so as to move and guide the upper die 110 between the paper making process 1 and the container discharging process 5 shown in FIG. The horizontal positions are set, and the mutual distance can be moved in parallel between a forward position shown in FIG. 2 and a retracted position shown in FIG. This pair of rails 140, 140
The upper mold body 110 can be placed at the forward position shown in FIG. 2, and the upper mold body 110 can be opened up and down at the retracted position shown in FIG. 3.

A rail 142 is provided on the ceiling plate 141 laid horizontally on the upper end so as to move and guide a slider 143 of the fastening mechanism 20, which will be described later, between the paper making step 1 and the dewatering step 2. It is laid horizontally. This slider 14
A hydraulic cylinder 144 is attached to 3, and a fixed block plate 150 is attached to the lower end of the piston rod 145. The fixed block plate 150 is integrally attached with a runner mounting plate 147 on the upper surface side and an upper mold retaining plate 158 on the lower surface side.

Four corners of one runner mounting plate 147
A set of nut runners (bolt rotating means) 146 is erected, and a hooking member (not shown) for hooking the upper mold body 110 in a state of being substantially in close contact with the lower surface is attached to the other upper mold hooking plate 158. ing. Further, on the ceiling plate 141, there is provided an upper mold body transferring means for transferring the upper mold body 110 hooked on the upper mold hooking plate 158 to the dehydration molding step 2. That is, as shown in FIG. 1, a hydraulic cylinder 148 is provided horizontally on the front side on the ceiling plate 141, and its actuator 149 holds the slider 143 in a state where the paper making process 1 and the dewatering process 2 are performed. Can be moved back and forth between

Then, the water-containing molding container Wa formed by papermaking in the papermaking molding step 1 is raised from the pulp raw material liquid M shown in FIG. The upper die 110 is closely attached to the upper die 111 of the upper die 110 which is hung by the hanger plate 158 and waits.
The upper mold body 110 in which the water-containing molding container Wa is brought into close contact with the upper mold 111 is raised to the upper end position shown in FIG. 1 by the operation of the hydraulic cylinder 144, and the next dehydration is performed from the paper making process 1 by the operation of the hydraulic cylinder 148. It is transferred to the molding step 2. In addition,
The hydrated container Wa is transferred in close contact with the upper mold 111 of the upper mold body 110 by suction means (not shown).

Next, the fastening mechanism 20 in the dehydration forming step 2 will be described. The fastening mechanism 20 tightens the lower mold body 120 and the upper mold body 110 to dehydrate the water-containing molding container Wa to form a dehydration molding container Wb, and to apply a set pressure to the dehydration molding container Wb. This is a mechanism for forming the pressing body 100. As shown in FIG. 4, the cylinder mount 153 is placed on the table 131.
The hydraulic cylinder 152 is attached to the cylinder mount 153. A lifting support 155 is attached to the upper end of the piston rod 154 of the hydraulic cylinder 152, and a heater block 151 is provided on the upper surface thereof. The heater block 151 has a lower mold body 12 on the upper surface.
0 can be placed, and the lower mold 120
A plurality of cartridge-type residual heaters 157 for heating the heater are built in. A rail 156 is attached to the left side of the heater block 151 in the figure, and guides the lower mold body 120 when it is transferred from a mold disassembling step 4 described later.

The above-described four sets of nut runners (bolt rotating means) 146 rotate between the upper mold 111 and the lower mold 121 of the pressurizing mold 100 by rotating the fastening bolt 113 shown in FIG. The compression molding is performed on the water-containing molding container Wa sandwiched between the containers. At the lower end of each nut runner 146, a hexagonal hole that can be engaged with the hexagonal head of the fastening bolt 113 is recessed, and the amount of rotation (tightening amount) of the fastening bolt 113 can be set at each base. A stepping motor (not shown) is provided.

The lower mold body 120 shown in FIG.
From the mold disassembling step 4 shown in FIG.
4 to 197). The other upper die body 110 is hooked on the upper die hooking plate 158 from the paper making process 1 shown in FIG. 3, and the hexagonal head of the fastening bolt 113 is engaged with the hexagonal hole of the nut runner 146. It is transferred to an upper position facing the lower mold body 120. The upper mold body 110 and the lower mold body 120 are tightened by the tightening bolts 113, thereby compressing the water-containing molded container Wa, allowing water to flow out of the respective fine holes, and dewatering the water-containing molded container Wa. Molded. Pressurized mold 1 sandwiching this dehydration molding container Wb
After the nut runner 146 returns to the paper making process 1, it is raised by the operation of the hydraulic cylinder 152, and is transferred to the next first dry forming process 3 A by the pressurized mold body transferring means described later.

Next, the heating mechanism 30 in the first drying and forming step 3A will be described. The heating mechanism 30 is a mechanism for heating and drying the dehydration molding container Wb in the pressurized mold 100 to form the first drying molding container Wc to the fourth drying molding container Wf having a predetermined shape. This is the same configuration as that arranged in the dry forming step 3B to the fourth dry forming step 3D. As shown in FIG. 4, a heater block support 161 is provided on the table 131, and the lower mold 120 of the pressurized mold 100 is placed on the heater block support 161.
Is provided with a heater table 162 having a built-in cartridge type preheater 166 for heating the heater. The upper surface of the heater table 162 serves as a sliding surface for transferring the pressurized mold 100 to each downstream process.

A hydraulic cylinder 164 is attached to a ceiling plate 163 laid horizontally on the upper end, and a cartridge type preheater 16 is attached to the lower end of the piston rod 165.
7 is mounted.
The heater block 168 is moved up and down by the operation of the hydraulic cylinder 164 to heat the pressurized mold 100 transferred onto the heater table 162 from the upper surface side.

Next, a description will be given of a pressurized body transfer means for transferring the pressurized body 100 to each downstream process. As shown in FIG. 1, the first transfer member 171a for transferring the pressurized mold body 100 from the dehydration molding step 2 to the first dry molding step 3A, and the second transfer member 171 for transferring the pressure mold body 100 from the first dry molding step 3A to the second dry molding step 3B.
A transfer member 171b, a third transfer member 171c for transferring from the second dry forming step 3B to the third dry forming step 3C, a fourth transfer member 171d for transferring from the third dry forming step 3C to the fourth dry forming step 3D, and Fourth transfer members 171e for transferring from the 4 dry forming step 3D to the mold disassembling step 4 are arranged on the heater table 162, respectively.

The first transfer member 171a and the second transfer member 171b are connected to the actuator 17 of the hydraulic cylinder 172 disposed on the heater table 162.
3 are integrally connected. First transfer member 171
When a is located in the dehydration molding step 2, the second transfer member 171b is located in the first dry molding step 3A, and when the first transfer member 171a is located in the first dry molding step 3A, the second transfer member 171b is located in the first dry molding step 3A. The transfer member 171b performs the second dry forming process 3
B is in a positional relationship as shown in FIG.

Further, the third transfer member 171c is a hydraulic cylinder 1 similarly arranged on the heater table 162.
74 actuators 175. The fourth transfer member 171d and the fifth transfer member 171e are integrally connected by an actuator 177 of a hydraulic cylinder 176. When the fourth transfer member 171d is located in the third dry forming step 3C, the fifth transfer member 171e
Are located in the fourth dry forming step 3D, and the fourth transfer member 171
When d is located in the fourth dry forming step 3D, the positional relationship is such that the fifth transfer member 171e is located in the mold disassembling step 4.

Chuck pieces 178, 178 are provided at both front and rear ends of each of the transfer members 171a to 171e in the direction in which the pressurized mold 100 is transferred.
It swings between the vertical position and the horizontal position in relation to the operations of 72, 174, and 176, and grips or releases the pressure-molding body 100. That is, each chuck piece 178, 178 is connected to each actuator 173, 17
When 5, 177 reaches the downstream process side, it tilts to the horizontal position and grips the pressurized mold 100, for example, like the fourth transfer member 171d and the fifth transfer member 171e shown in FIG.
Further, when the gripping pressurized mold 100 reaches the upstream process side, each of the chuck pieces 178, 178 is, for example, the first
Like the transfer member 171a and the second transfer member 171b, the pressing member 100 is released from being held upright at the vertical position.

Next, the disassembling mechanism 40 in the mold disassembling step 4 will be described. The disassembling mechanism 40 is a mechanism for separating the pressurized mold body 100 into a lower mold body 120 and an upper mold body 110. As shown in FIG. 5, a cylinder mount 179 is fixed on a table 131, and A hydraulic cylinder 181 is attached to the cylinder mount 179. A lifting support 184 is attached to the upper end of the piston rod 182 of the hydraulic cylinder 181, and a heater block 183 is provided on the upper surface thereof. The heater block 183 can mount the lower mold body 120 on the upper surface, and has a plurality of built-in cartridge-type residual heat heaters 169 for heating the lower mold body 120 inside. Heater block 183
A rail 180 is attached to the left side of the figure,
At the time of transferring to the above-mentioned dehydration molding step 2.

A rail 188 is provided on the ceiling plate 141 laid horizontally on the upper end, and the mold disassembling step 4 and the container discharging step 5 are carried out.
The slider 189 is provided horizontally to guide the movement of the slider 189. The slider 189 has a hydraulic cylinder 187
The fixed block plate 191 is attached to the lower end of the piston rod 190. The fixed block plate 191 is integrally attached with a runner mounting plate 186 on the upper surface side and an upper mold retaining plate 203 on the lower surface side. Four sets of nut runners (bolt rotating means) 185 are provided upright at the four corners of one runner mounting plate 186, and the upper die body 110 is substantially in close contact with the lower surface of the other upper die retaining plate 203. (Not shown) is mounted.

The nut runner 185 separates the upper die 110 and the lower die 120 of the pressurizing die 100 by rotating the fastening bolt 113 as shown in FIG. At the lower end of each nut runner 185, a hexagonal hole that can be engaged with the hexagonal head of the tightening bolt 113 is recessed, and at each base, the amount of rotation (looseness) of the tightening bolt 113 can be set. Not equipped with a stepping motor. Further, on the ceiling plate 141, there is provided upper body transferring means for transferring the upper body 110 hooked on the upper mold hooking plate 203 to the container discharging step 5. That is, as shown in FIG.
And the actuator 193 is mounted on the slider 1
With the hook 89, the reciprocating movement between the mold disassembling step 4 and the container discharging step 5 can be performed.

Further, on the table 131, there is provided a sixth transfer member 196 of a lower mold body transferring means for transferring the separated lower mold body 120 to the dehydration molding step 2 (see FIG. 1). That is, the sixth transfer member 196 is
1 are integrally connected by an actuator 195 of a hydraulic cylinder 194 disposed above. Chuck pieces 197, 197 are provided at both front and rear ends of the sixth transfer member 196 in the lower mold body 120 transfer direction, and the hydraulic cylinders 19 are provided.
In association with the actuation of No. 4, it swings between a vertical position and a horizontal position, and grips the pressurized die body 100.

Then, from the fourth drying and forming step 3D, the pressurizing mold 100 is moved from the heater block 183 which is positioned in advance on the same plane as the upper surface of the heater table 162.
Transported up. Next, after the upper mold retaining plate 203 descends and latches the upper mold body 110, the screwing of the fastening bolt 113 is released by the nut runner 185, and the pressing mold body 100 is released.
As shown in FIG. 5, the upper mold body 110 and the lower mold body 120 are separated, and the upper mold body 110 is transferred to the next container discharging step 5 by the operation of the hydraulic cylinder 192. The papermaking container Wg is loaded on the upper mold 11 by suction means (not shown).
0 is transferred in close contact with the upper mold 111. In addition, lower mold body 1
20 indicates that the height position of the upper surface of the heater block 183 is the same as that in FIG.
After being positioned on the same surface as the heater block 151 in the dehydration molding step 2 shown in FIG. 7A, the chuck block 197 is gripped by the chuck pieces 197 and transferred to the dehydration molding step 2 by the operation of the hydraulic cylinder 194 and waits.

Next, the discharging mechanism 50 in the container discharging step 5 will be described. As shown in FIG. 6, the discharging mechanism 50 is a mechanism for discharging the papermaking container Wg adsorbed on the inner surface of the upper die 110 transferred from the mold disassembling step 4, and is a mechanism for discharging the papermaking container Wg. A storage box 198 is provided at the drop position. Further, the upper mold body 110 is placed on the support base 129.
A seventh transfer member 201 of the upper mold body transfer means for transferring the paper to the paper making process 1 is provided (see FIG. 1). That is,
The seventh transfer member 201 is integrally connected by an actuator 200 of a hydraulic cylinder 199 arranged on a support base 129. Upper body 1 of this seventh transfer member 201
10. At both front and rear ends in the transfer direction, chuck pieces 202, 2
02 is provided so as to swing between a vertical position and a horizontal position in relation to the operation of the hydraulic cylinder 199 to grip the upper die 110.

Then, the papermaking container Wg adsorbed on the inner surface of the upper mold body 110 shown in FIG. 6 releases the suction operation of the suction means (not shown), and supplies the pressurized air (not shown) from above the upper mold body 110. It is discharged by blowing compressed air to the papermaking container Wg by means. Also, the upper body 11
0 is lowered from the position shown in FIG.
0, 140, and the upper die hooking plate 203.
Is released, and the upper mold retaining plate 203 rises and waits. The upper die body 110 placed on the pair of rails 140, 140 is gripped by the chuck pieces 202, 202, transferred to the paper making process 1 by the operation of the hydraulic cylinder 199, and waits.

Subsequently, a procedure and an operation of forming the papermaking container Wg by the manufacturing apparatus thus configured will be described as follows.

First, in the papermaking molding step 1, as shown in FIGS.
The papermaking wire mesh 132 is set on the plate 34, and in this state, the suction pump 138 is operated by suction to make the pulp raw material liquid M in the papermaking tank 130 by the papermaking wire mesh 132. As a result, after a lapse of a predetermined time, a water-containing molded container Wa having a predetermined thickness is formed on the papermaking gauze 132.

Therefore, the support table 134 is moved to the hydraulic cylinder 13
3 and the papermaking wire mesh 132 is
4 is raised above the liquid level of the paper making tank 130, and at the same time, the upper die hooking plate 158 and the nut runner 146 waiting on the paper making tank 130 are lowered by the lowering operation of the hydraulic cylinder 144, and the tip of the nut runner 146 is moved. Rail 14
The upper mold body 110 placed on the reference numeral 0, 140 is brought close to the upper mold body 110.

Further, when the nut runner 146 is further lowered, the hexagonal hole provided at the tip of the nut runner 146 is engaged with the hexagonal head of the fastening bolt 113 inserted into the upper jig base 112 of the upper die 110. In this state, the upper body 110 is suspended by moving the rails 140 and 140 in parallel to the retracted position shown in FIG. 3, and then the hydraulic cylinder 144 is further extended to lower the upper body 110, thereby supporting the upper body 110. It is assumed that the papermaking wire mesh 132 on the table 134 and the water-containing molding container Wa on the wire mesh are mounted in the upper mold 111 of the upper mold 110.

Then, the water-containing molding container Wa on the papermaking wire mesh 132 is sucked through a number of fine holes formed in the mold surface of the upper die 111 of the upper die 110 by suction means (not shown). In a state separated from the wire netting 132, the papermaking wire netting 132 and its support table 134 are lowered by the contraction movement of the hydraulic cylinder 133, and the papermaking tank 130
The upper mold body 110 is immersed in the hydraulic cylinder 14.
Due to the contraction movement of 4, the water-containing molded container Wa is raised while being adsorbed in the upper mold 111.

Then, the hydraulic cylinder 148 for the slider 143 shown in FIG. 1 is operated, and the slider 143 is moved along the rail 142 laid on the ceiling plate 141 so that the inner surface of the upper mold 111 contains water. Molded container W
The paper is transferred from the papermaking molding step 1 to the dehydration molding step 2 while holding a. In the paper making tank 130, a pump 138 is provided.
Then, the next water-containing forming container Wa is formed on the papermaking wire mesh 132 by the suction operation of.

Next, the dehydration molding step 2 includes the water-containing molding step Wa.
Is transferred, in this dehydration molding step 2, FIG.
As shown in FIG. 4 and FIG.
The upper die 110 is lowered together with the nut runner 146 by the extension movement of the hydraulic cylinder 144 toward the lower die 120 which is standing by being placed on the upper die 110, and the male upper die 111 of the upper die 110 is formed. The male-type lower mold 12 of the lower mold body 120 is provided therein.
Bring 1 closer.

Then, the water-containing molding container W in the upper mold body 110
When a is sandwiched between the upper mold body 110 and the lower mold body 120, each nut runner 146 is rotated, and each of the fastenings inserted into the upper mold jig table 112 of the upper mold body 110 is performed. The upper die body 110 and the lower die body 120 are fastened by the bolts 113 to form an integrated pressurized die body 100. At this time, the upper mold body 110 is pressed and urged toward the lower mold body 120 by the urging force of the respective disc springs 114 mounted on the upper mold jig table 112, so that the water-containing molded container Wa is moderately tightened. Pressure is applied by the upper mold 111 and the lower mold 121.

At this time, since the lower mold body 120 is preliminarily heated by the preheater 157 in the heater block 151, the water-containing molding container Wa pressurized by the upper mold body 110 and the lower mold body 120 is This preheater 157
At the same time as the lower mold 12
Numerous micropores provided in the mold surface of the mold 1 and the upper mold 1
The water is gradually dehydrated by the suction action of water from a number of fine holes provided in the mold surface of the upper mold 111 by suction means (not shown). The upper body 110 is provided with each disc spring 11
4, the space between the upper mold body 110 and the lower mold body 120 becomes narrower as the dehydration of the water-containing molded container Wa progresses, and the dehydration proceeds. The pressing bias state according to the situation is continued.

When the dehydration molding container Wb is obtained in this manner, the pressurizing mold 100 is released from the engagement of the upper mold retaining plate 158, and immediately thereafter, the nut runner 146 is moved by the contraction of the hydraulic cylinder 144. Ascending, the engagement between the hexagonal hole and the hexagonal head of the fastening bolt 113 is released. After the nut runner 146 further rises and reaches the rising end position, the hydraulic cylinder 148 shown in FIG. 1 is operated to return from the dewatering molding process 2 to the paper making molding process 1.

The pressurized mold 100 left on the heater block 151 is mounted on the nut runner 146 with the fastening bolt 1.
Immediately after moving away from 13, the hydraulic cylinder 152 rises due to the extension movement, and the lower surface of the lower mold body 120 of the pressurizing mold 100 is at the same height as the upper surface of the heater table 162 provided in the next dry molding step 3A. Stopped in position.

Next, the pressurized mold 100 (lower mold 12
0) is the first transfer member 1 shown in FIG.
The pressurized mold body 100, which is gripped by the chuck pieces 178 and 178 of 71 a, and in which the dehydration molding container Wb is sandwiched by the operation of the hydraulic cylinder 172, is moved from the dehydration molding step 2 to the next first step.
It is transferred to the dry molding step 3A.

Next, when the pressurized mold 100 holding the dehydration molding container Wb is transferred to the first dry molding step 3A shown in FIG. 4, the pressurized mold 100 is moved to the upper mold by the hydraulic cylinder 164. Heater block 1 for heating from the 110 side
68 descends and comes into contact with the upper surface of the upper mold body 110, and the lower mold body 120 is heated by the preheater 166 built in the heater table 162.
Is heated from both the lower mold body 120 side and the upper mold body 110 side. For this reason, the dehydration molding container Wb in the pressurizing mold 100 is gradually dried, and the pressing force of the disc spring 114 mounted in the upper jig table 112 of the upper mold 110 according to the progress of the drying state. Upper body 110 and lower body 12
Since the interval with zero becomes narrower, drying of the dehydration molding container Wb proceeds with an appropriate pressing force.

When a predetermined drying time in the first dry molding step 3A has elapsed, the hydraulic cylinder 164 is raised to move the heater block 168 upward to separate it from the pressurizing mold 100, and then to pressurize the pressurizing mold 100. Body 100
Are the chuck pieces 17 of the second moving member 171b shown in FIG.
8, 178, and transferred to the next second dry forming step 3B by the operation of the hydraulic cylinder 172.

In the second drying and forming step 3B, the first
As in the case of the dry molding step 3A, although not shown, a heater block for heating the pressurized mold body 100 from the upper mold body 110 side descends and heats from the upper mold body 110 side. 162 is heated by a preheater 166 built in
Is heated from both the lower mold body 120 side and the upper mold body 110 side, and the dehydration molding container Wc in the pressurized mold body 100 obtained in the first dry molding step 3A is further dried. Also in this second dry forming step 3B, the distance between the upper die 110 and the lower die 120 is reduced by the pressing force of the disc spring 114 mounted in the upper die jig table 112 of the upper die 110. Drying proceeds with an appropriate pressing force.

After a predetermined drying time has passed in the second drying and forming step 3B, the heater block is moved up to separate from the pressing die 100, and this pressing die 100 is moved to the third moving member 171c. Chuck piece 178,1
It is gripped by 78 and transferred to the third dry forming step 3C by the operation of the hydraulic cylinder 174, and the drying of the dry forming container proceeds as in the case of the first and second dry forming steps 3A and 3B. Then, after the elapse of the drying time in the third drying and forming step 3C, the dried and dried container Wf is further transferred to the fourth drying and forming step 3D and is sufficiently dried.

Then, the fourth dry forming step 3D shown in FIG.
Is completed, the heater block 168 is separated from the pressing die body 100, and the fifth moving member 171e shown in FIG.
The pressurized mold 100 is gripped by the chuck pieces 178, 178, and the hydraulic cylinder 176 is operated.
00 is transferred to the next mold separation step 4.

In the mold disassembling step 4, the hydraulic cylinder 1
With the lowering operation of 87, the nut runner 185 is lowered,
Further, the nut runner 185 is rotated to release the tightened state of the upper die 110 and the lower die 120 of the pressurizing die 100 by the tightening bolt 113. Then, the hydraulic cylinder 187 is raised to raise the upper die hooking plate 203 on which the upper die 110 is hooked and the nut runner 185, and lift the upper die 110 apart from the lower die 120.

On the other hand, the lower mold body 120 separated from the upper mold body 110 and left on the heater block 183 is lowered by the lowering operation of the hydraulic cylinder 181 as shown in FIG. The lower mold body 120 is guided by the rail 180 and the rail 156 shown in FIG. 4 by the operation of the hydraulic cylinder 194 shown in FIG. 1 and from the heater block 183 to the heater block 151 in the dehydration molding step 2. The upper mold body 110 which is transferred and then transferred to the dewatering and forming step 2 from the paper making and forming step 1 (holding the water-containing forming container Wa)
Will be tightened.

On the other hand, since the papermaking container Wg is in a suction state on the inner surface of the upper mold body 110 lifted in the mold disassembling step 4, the upper mold body 110 is directly operated by the hydraulic cylinder 192 shown in FIG. Is transferred to the next container discharge mechanism 5. Then, in the container discharge mechanism 5 shown in FIG. 6, the suction operation by the suction means (not shown) is released, and the upper mold 11 is released.
The papermaking container Wg is dropped into the storage box 198 by blowing compressed air from above in 0 by a pressure air supply means (not shown). Next, by the lowering operation of the hydraulic cylinder 187, the upper die hooking plate 203 on which the upper die 110 is hooked and the nut runner 185 are lowered, and the pair of rails 140, 14
The upper mold body 110 is placed on the upper mold
Release from the lock with 3.

Then, the hydraulic cylinder 187 is raised to raise the upper die hooking plate 203 and the nut runner 185, and the remaining upper die 110 is moved on its rails 140, 140 by the operation of the hydraulic cylinder 199. It is transferred to papermaking molding process 1. The upper mold body 110 transferred to the paper making process 1 holds the water-containing forming container Wa formed in the paper making process 1 and is transferred to the next dehydration forming process 2.

As described above, the papermaking container Wg obtained in the mold disassembling step 4 through the papermaking molding step 1, the dehydration molding step 2, the first dry molding step 3A to the fourth dry molding step 3D, and
Is discharged in the container discharging step 5, during which the hydrated container Wa is sequentially formed in the papermaking molding step 1, and the hydrated container Wa is dehydrated in the dewatering molding step 2. Further, the dehydration molding container Wb is sequentially dried during the period from the first dry molding step 3A to the fourth dry molding step 3D, and the upper mold body 110 and the lower mold body 120 are disassembled in the mold disassembly step 4, and The discharging of the papermaking container Wg in the container discharging step 5 proceeds continuously and productively.

Specifically, this manufacturing apparatus includes the upper mold 11
0 and five lower mold bodies 120 are used. Of these, the pressurized mold body 100 in which the upper mold body 110 and the lower mold body 120 are integrally fastened to each other is the dehydration molding step 2 and the first mold body 100. It is always disposed at five positions of the dry forming step 3A to the fourth forming step 3D, and one set of the upper body 110 is further disposed in the paper making step 1.

When the pressurized mold 100 in the dehydration molding step 2 moves to the first dry molding step 3A, the pressurized mold 100 in the first dry molding step 3A simultaneously moves to the second dry molding step 3B, Further, the pressurized die 1 of the second dry forming step 3B
00 goes to the third dry forming step 3C,
The pressing die 100 moves to the fourth dry forming step 3D simultaneously, and the pressing die 100 moves to the mold disassembling step 4 in the fourth dry forming step 3D.

After the press mold 100 is disassembled into the upper mold 110 and the lower mold 120 in the mold disassembling step 4, the lower mold 12 is disassembled.
0 moves to the dewatering molding step 2 in which an empty space is formed, and the upper mold body 110 moves to the container discharging step 5, while the lower mold body 120 moves.
Has moved to the dehydration molding step 2, the upper mold body 110 waiting in the papermaking molding step 1 moves to the dehydration molding step 2 while holding the next water-containing molding container Wa, and the pressurized mold 100
It is said that. Finally, the upper mold body 110 in the container discharging step 5 moves to the paper making step 1 and the one-step production step is performed. This operation is sequentially repeated, and the paper forming container Wg is continuously removed. Production will take place.

The apparatus for manufacturing a papermaking molded container according to the present invention comprises:
The present invention is not limited to the above-described embodiments, and can be configured in various forms without departing from the gist of the present invention. For example, it is possible to reverse the concave and convex shapes of the upper mold body and the lower mold body, and to use various elastic materials instead of the disc springs.

[0075]

Since the present invention is performed as described above, the following effects can be obtained. That is, according to the first aspect of the invention, the lower mold body and the upper mold body are fastened by the fastening mechanism in the dehydration molding step to dehydrate the water-containing molding vessel to form the dehydration molding vessel, Since the set pressing force is constantly applied to the dewatered molding container in the pressurized mold body attached, there is no plastic deformation due to thermal strain, and the shape accuracy of the dried and dried molding container can be improved.

In the drying and molding step, since a set pressure is constantly applied to the container in the pressurized mold, the dehydration of water remaining in the dehydration and molding container during drying is promoted, and the drying time is shortened. Can be achieved. In addition, since a press mechanism is not required, a cycle time can be reduced and productivity can be improved by providing a plurality of dry forming steps and sequentially transferring the pressurized molds to each heating mechanism. Furthermore, since the configuration of the manufacturing apparatus can be simplified and inexpensive, and automation can be easily achieved, the manufacturing cost of the papermaking container can be reduced.

Next, according to the second aspect of the present invention, since the pressure applied to the container in the pressurized mold body is applied by a disc spring, water mixed with the container composition material such as cellulose fiber is dehydrated. Even if the volume is reduced by drying and evaporating, the set pressure is always applied to the container in the pressurized mold body, and the removal of water from the container in each step can be promoted. Further, since the disc spring can be housed in the small volume space, the pressurized body can be simply configured.

Next, according to the third aspect of the present invention, the fastening bolt for fastening the lower mold body and the upper mold body is rotated by the bolt rotating means. When the set pressing force is applied to the container, the pressing force to be applied to the container in the pressurized mold body can be easily set by setting the tightening amount of the fastening bolt, that is, the number of rotations of the bolt rotating means, and automation can be performed. It is easy to plan and the structure of the fastening mechanism can be simplified.

Next, according to the fourth aspect of the present invention, a disassembling mechanism for separating the pressurized mold body and a discharge mechanism for discharging the dry molded container from the upper mold body are provided in the downstream step of the dry molding step. Therefore, it is possible to save labor by automatically separating the pressurized mold body from the dry forming step in the mold disassembling step and discharging the dry formed container in the container discharging step.

Next, according to the fifth aspect of the present invention, the upper die body transfer means, the lower die body transfer means, and the pressurized die body transfer means are provided in the vicinity of each step, and the upper die body is provided with a mold. From the disassembly step, it is sequentially transferred to the dewatering molding step through the container discharging step and the papermaking molding step, the lower mold body is transferred from the mold disassembling step to the dehydration molding step, and the pressurized mold body is transferred from the dehydration molding step to the dry molding step. Since each of the molds can be sequentially transferred to the mold decomposition step, each mold can be circulated. Therefore, it is possible to automatically transfer the molding container of each process together with each mold, thereby saving labor.

[Brief description of the drawings]

FIG. 1 is an overall explanatory view showing an example of an embodiment of a papermaking container manufacturing apparatus of the present invention, and is a top view thereof.

2 is an explanatory view showing a paper making mechanism, a fastening mechanism, and a heating mechanism, and is a cross-sectional view taken along the line AA in FIG. 1;

FIG. 3 is an explanatory view showing a paper making mechanism,
It is an expanded sectional view of the said part shown in FIG.

FIG. 4 is an explanatory view showing a fastening mechanism and a heating mechanism, and is an enlarged sectional view of the portion shown in FIG. 2;

FIG. 5 is an explanatory view showing a heating mechanism and a disassembly mechanism, and is a cross-sectional view taken along the line CD of FIG. 1;

6 is an explanatory view showing a discharge mechanism, similarly to FIG.
FIG. 6 is a sectional view taken along the line B-C in FIG.

FIG. 7 is an explanatory view showing a pressurized mold body, and is a longitudinal sectional view of the same.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 papermaking molding process 2 dehydration molding process 3A to 3D dry molding process 4 mold disassembling process 5 container discharging process 10 papermaking molding mechanism 20 fastening mechanism 30 heating mechanism 40 disassembling mechanism 50 discharging mechanism 100 pressurized mold 110 upper mold 111 upper mold 112 Upper mold jig stand 113 Fastening bolt 114 Disc spring 120 Lower mold 121 Lower mold 122 Lower jig stand 130 Papermaking tank 132 Papermaking wire mesh 146,185 Nut runner (bolt rotating means) 148, 172, 174, 176 194,199 Hydraulic cylinder 162 Heater table 168 Heater block M Pulp raw material liquid Wa Wet molding container Wb Dehydration molding container Wc First drying molding container Wd Second drying molding container We Third drying molding container Wf Fourth drying molding container Wg Papermaking molding container

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shigeo Nishimura 501, Nitta-dong, Asahimae-cho, Owariasahi-city, Aichi Prefecture Inside Asahi Seiki Kogyo Co., Ltd. (72) Inventor Mitsuhiro Okada Asahimae-cho, Owariasahi-shi, Aichi Prefecture 5072 No. 1 in Asahi Seiki Kogyo Co., Ltd. (72) Inventor Yukio Resii 2-8-23 Akagawa, Asahi-ku, Osaka-shi, Osaka Utsunouchi Co., Ltd. (72) Inventor Yorio Hashimoto Asahi-ku, Osaka-shi, Osaka 2-8-23 Akakawa Utsunouchi F-term (reference) 3E033 AA10 BA10 CA03 DA08 DD01 EA20 3L113 AA01 AB05 AB09 AC08 AC44 AC67 BA13 DA04 DA08 4L055 CJ06 CJ10 FA18 FA22 FA23 GA50

Claims (5)

[Claims] 1. A lower mold body having a lower mold attached to a lower mold jig, and an upper mold having an upper mold attached to an upper mold jig which can be fastened to a lower surface position by a fastening bolt. And a papermaking molding mechanism for papermaking the pulp raw material liquid in a papermaking molding process and forming it into a water-containing molding container, and a lower mold body and an upper mold body are fastened and clamped by fastening bolts in a dewatering molding process. A dehydration molding container is formed by dewatering the water-containing molding container to form a dehydration molding container and a pressurized mold body capable of applying a set pressure to the dehydration molding container, and the dehydration molding container in the pressurized molding body is heated in the drying molding process. And a heating mechanism for drying and forming into a dry-formed container having a predetermined shape, wherein the pulp raw material liquid is formed into paper, dewatered, and dried and formed to produce a paper-formed container. Equipment for manufacturing papermaking containers. 2. The apparatus according to claim 1, wherein a disc spring is provided on the upper mold jig of the upper mold body, and a set pressure is applied to a container in the pressurized mold body by tightening a fastening bolt. An apparatus for manufacturing a papermaking molded container according to claim 1. 3. The fastening mechanism according to claim 1, wherein said fastening mechanism is provided with bolt rotating means capable of rotating a fastening bolt to fasten the lower mold body and the upper mold body. Or the apparatus for producing a papermaking molded container according to 2. 4. A downstream mechanism of the dry molding step includes a decomposition mechanism for separating the pressurized mold body into a lower mold body and an upper mold body in a mold disassembly step; The apparatus for manufacturing a papermaking molded container according to any one of claims 1 to 3, further comprising a discharge mechanism for discharging. 5. An upper mold body transfer means for transferring an upper mold body, a lower mold body transfer means for transferring a lower mold body, and a pressurized mold body transfer for transferring a pressurized mold body, at positions near the respective steps. 5. The papermaking molding container according to claim 4, further comprising means for sequentially transferring and circulating the upper mold, the lower mold, or the press mold in each step in each form. Manufacturing equipment.