TWI676544B - Feeding device and injection molding equipment having the same, and method of feeding liquid material to an injection molding machine - Google Patents

Abstract

A feeding device includes a storage mechanism and a driving mechanism. The storage mechanism includes a load bearing assembly, a storage container detachably assembled and positioned on the load bearing assembly, and a piston. The storage container is disposable and is formed with a storage space and a through hole communicating with the storage space. The storage space is used for containing a liquid material. The piston is movably disposed in the storage space. The driving mechanism is used to push the piston to move toward the feed hole, so that the piston squeezes the liquid material through the feed hole. Thereby, cleaning man-hours and costs can be saved, and a uniformly mixed liquid material can be provided to the injection molding machine.

Description

Feeding device, injection molding equipment having the same, and liquid Method for feeding material to injection molding machine

The invention relates to a feeding device, in particular to a feeding device capable of storing and feeding liquid materials in advance, an injection molding device having the feeding device, and a method for feeding liquid materials to an injection molding machine. .

The current process of injection molding of liquid silicone rubber (LSR) through an injection molding machine is as follows: First, a feeder conveys two liquid component materials A and B to a mixer through two conveying pipes, respectively, and mixes them. The device will mix the two liquid component materials A and B together to form a liquid silicone rubber. Subsequently, the liquid silicone rubber is conveyed to an injection molding machine through another conveying pipe, so that the injection molding machine can perform the injection molding operation on the liquid silicone rubber.

When the colored liquid silicone rubber is to be mixed through the aforementioned mixer, the feeder will also convey the pigment to the mixer through a color tube, so that the mixer will mix The liquid composition material is mixed with the colorant together to form a colored liquid silicone rubber. In the process of testing a variety of liquid silicone rubbers of different colors, after each liquid silicon rubber testing mode of one color is completed, the raw materials and conveying pipes of the feeder must be replaced, and the feeders, mixers and The toner tube is cleaned. In this way, not only a large number of cleaning man-hours will be consumed, but also the raw materials remaining in the aforementioned components will be lost, and the cost will be increased.

On the other hand, when the injection molding machine is intended to perform injection molding of a small amount of liquid silicone rubber, for example, less than 4 g, it is output to the kneader through the feeder during the storage of a rod of the injection molding machine when it is moved back The amount of the two liquid component materials A and B in the mixture is very small. Therefore, the effect of mixing the two liquid component materials A and B in the mixer is likely to be poor, leading to uneven mixing.

Therefore, an object of the present invention is to provide a feeding device, which can save cleaning man-hours and costs, and can provide a liquid material that is uniformly mixed to an injection molding machine.

Therefore, the feeding device of the present invention includes a storage mechanism and a driving mechanism.

The storage mechanism includes a load bearing assembly, a storage container detachably assembled and positioned on the load bearing assembly, and a piston. The storage container is disposable and formed with A storage space and a through hole communicated with the storage space. The storage space is used for containing a liquid material. The piston is movably disposed in the storage space. The driving mechanism is used to push the piston to move toward the feed hole, so that the piston squeezes the liquid material through the feed hole.

Therefore, the feeding device of the present invention includes a bearing assembly, a disposable storage container detachably assembling the pressure-resistant container positioned in the bearing assembly, a piston, and a driving mechanism.

The load bearing assembly contains a reusable pressure-resistant container. The storage container is used for storing a liquid material, and one end of the storage container has a through hole. A piston is movably disposed in the storage container. The driving mechanism is used for pushing the piston to move in the direction of the through hole, so that the piston squeezes the liquid material through the through hole.

Therefore, the feeding device of the present invention includes a reusable pressure-resistant container, a base, a cover, a storage container detachably assembled in the pressure-resistant container, a piston, and a driving mechanism.

The base is provided for the pressure-resistant container. The cover is movable relative to the base between an open position where the pressure-resistant container is exposed and a cover position where the pressure-resistant container is covered. The storage container is used for storing a liquid material, and one end of the storage container has a through hole. A piston is movably passed through the storage container. The driving mechanism is used for pushing the piston to move in the direction of the through hole, so that the piston squeezes the liquid material through the through hole.

Therefore, the feeding device of the present invention includes a reusable pressure-resistant volume Device, a storage container detachably assembled in the pressure-resistant container, a piston, and a driving mechanism.

The storage container structure itself may be deformed during operation and used to store a liquid material. The storage container has a through hole at one end. A piston is movably passed through the storage container. The driving mechanism is used for pushing the piston to move in the direction of the through hole, so that the piston squeezes the liquid material through the through hole.

Another object of the present invention is to provide an injection molding device having a feeding device, which can save cleaning man-hours and costs, and can provide a liquid material that is uniformly mixed to the injection molding machine.

Therefore, the injection molding equipment with a feeding device of the present invention includes at least one injection molding machine and at least one feeding device.

The feeding device includes a storage mechanism, a connection mechanism, and a driving mechanism. The storage mechanism includes a load bearing assembly, a storage container detachably assembled and positioned on the load bearing assembly, and a piston. The storage container is disposable and is formed with a storage space and a through hole communicating with the storage space. The storage space is used for containing a liquid material. The piston is movably disposed in the storage space. The connecting mechanism is connected between the bearing assembly and the injection molding machine. The driving mechanism is used to push the piston to move toward the feed hole, so that the piston squeezes the liquid material through the feed hole and transports the liquid material to the injection molding machine through the connection mechanism.

Yet another object of the present invention is to provide a liquid material The method of forming a molding machine can provide a liquid material that is uniformly mixed to the injection molding machine.

Therefore, the method for feeding the liquid material to the injection molding machine of the present invention includes the following steps: mixing at least two constituent materials through a stirrer to form a liquid material; filling the liquid material into a disposable storage container ; Installing the storage container to a load bearing assembly; and pushing a piston through a driving mechanism to squeeze the liquid material out of the storage container, so that the liquid material is fed into an injection molding machine.

Therefore, the method for feeding the liquid material to the injection molding machine of the present invention includes the following steps: filling a liquid material into a disposable storage container; installing the storage container into a reusable pressure-resistant container; The liquid material is squeezed out of the storage container, and the liquid material is fed into an injection molding machine; the storage container is taken out of the pressure-resistant container; and the storage container is discarded.

Therefore, the method for feeding the liquid material to the injection molding machine of the present invention includes the following steps: filling a liquid material into a storage container; Install the storage container to a reusable pressure-resistant container; squeeze the liquid material out of the storage container to feed the liquid material into an injection molding machine; take the storage container out of the pressure-resistant container ; And cleaning the storage container for reuse.

Thus, the method for feeding liquid material to an injection molding machine of the present invention includes the following steps: filling a liquid material into a storage container whose structure itself may be deformed during operation; installing the storage container to a reusable container A pressure-resistant container; extruding the liquid material into the storage container so that the liquid material is fed into an injection molding machine; and removing the storage container from the pressure-resistant container.

The effect of the present invention is that the injection molding equipment of each embodiment uses the storage container as a disposable type or can be reused after being cleaned and detachably assembled and positioned in a pressure-resistant container carrying the assembly, which can save cleaners Time and cost. In addition, the mixed liquid material is stored in the storage space of the storage container in advance, thereby providing a liquid material that is uniformly mixed to the injection molding machine.

100‧‧‧ Injection molding equipment

110‧‧‧ injection molding machine

120‧‧‧Feeding device

130‧‧‧feeding device

131‧‧‧ adapter

132‧‧‧ mixer

1‧‧‧ base

2‧‧‧Storage organization

21‧‧‧Storage Container

211‧‧‧Storage space

212‧‧‧through hole

213‧‧‧ opening

214‧‧‧Inner peripheral surface

22‧‧‧Piston

221‧‧‧ Cover

222‧‧‧ support plug body

223‧‧‧Extrusion wall

224‧‧‧outer wall

225‧‧‧Groove

226‧‧‧Thread hole

23‧‧‧ bearing assembly

24‧‧‧Carrier

241‧‧‧pedestal

242‧‧‧ cover

243‧‧‧ Pivot

244‧‧‧First lock fastener

245‧‧‧Second lock fastener

246‧‧‧ seat

247‧‧‧ end wall

248‧‧‧First receiving slot

249‧‧‧ opening

250‧‧‧ positioning groove

251‧‧‧Second accommodation slot

252‧‧‧ lower opening

253‧‧‧Scaffold

254‧‧‧ Pivot Plate

255‧‧‧ buckle

256‧‧‧The first coolant channel

257‧‧‧Second coolant channel

258‧‧‧screw

259‧‧‧through hole

26‧‧‧Pressure container

260‧‧‧accommodation space

261‧‧‧ opening

262‧‧‧End cap

263‧‧‧Sleeve

264‧‧‧Thread hole

265‧‧‧Container

266‧‧‧Screw hole

267‧‧‧ around the wall

268‧‧‧first joint

269‧‧‧perforation

270‧‧‧Port

271‧‧‧Second Joint

272‧‧‧First groove

273‧‧‧Second trough

3‧‧‧ Connected institutions

31‧‧‧ connecting pipe

310‧‧‧ runner

311‧‧‧first connection

312‧‧‧Second connection section

313‧‧‧Third connection

32‧‧‧ pressure regulating valve

33‧‧‧Storage valve group

331‧‧‧Adapter

332‧‧‧Control Valve

333‧‧‧Check valve

334‧‧‧Inlet

335‧‧‧ball plug

4‧‧‧Drive mechanism

41‧‧‧cylinder block

42‧‧‧ Rod

421‧‧‧Head

422‧‧‧through hole

423‧‧‧bolt

5‧‧‧ liquid materials

S1‧‧‧Mixing step

S2‧‧‧Defoaming step

S3‧‧‧Steps of filling liquid material

S4‧‧‧Steps for installing storage container

S5‧‧‧Feeding liquid material step

D1‧‧‧ downward direction

D2‧‧‧ upward direction

P1‧‧‧First direction

P2‧‧‧Second direction

X‧‧‧first horizontal

Y‧‧‧second horizontal

Z‧‧‧Vertical

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a side view of a first embodiment of an injection molding apparatus having a feeding device according to the present invention, explaining an injection The connection relationship between the molding machine and a feeding device; FIG. 2 is an incomplete perspective view of the feeding device of the first embodiment; FIG. 3 is a sectional view taken along line III-III in FIG. 2; 4 is a partial perspective exploded view of the feeding device of the first embodiment, illustrating an assembly relationship between a storage mechanism and a connecting mechanism; FIG. 5 is a perspective exploded view illustrating a first embodiment of the first embodiment The assembly relationship between the storage container, a piston, and a pressure-resistant container; FIG. 6 is a flowchart of a step of a method for feeding a liquid material to an injection molding machine using the first embodiment; FIG. 7 is a sectional view, It is explained that a liquid material is filled in a storage space of the storage container of the first embodiment; FIG. 8 is an assembly schematic diagram illustrating a set of the storage container of the first embodiment that runs through the pressure-resistant container Inside the tube; Figure 9 is an assembly schematic The sleeve illustrating the first embodiment drives the storage container into a first receiving groove of a base; FIG. 10 is an assembly diagram illustrating the sleeve driving the storage material according to the first embodiment The container is moved so that a first joint portion of one end cap is passed through a first joint portion of a second joint portion. Two grooves; FIG. 11 is an assembly schematic diagram illustrating that the sleeve of the first embodiment is rotated at an appropriate angle so that the first joint portion is locked in the second groove portion; FIG. 12 is a schematic diagram illustrating the operation A rod member of the first embodiment pushes the piston to drive the piston to extrude the liquid material through a through hole; FIG. 13 is a side view of a second embodiment of an injection molding apparatus having a feeding device according to the present invention, Describe the connection relationship between the injection molding machine, the feeding device, and a feeding device; FIG. 14 is an incomplete cross-sectional view of the feeding device of the second embodiment; FIG. 15 is a schematic diagram of the operation, explaining the first The rod of the second embodiment pulls the piston to suck the liquid material into the storage space; and FIG. 16 is a side view of another embodiment of the second embodiment.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

Referring to FIG. 1 and FIG. 2, a first embodiment of an injection molding apparatus having a feeding device according to the present invention. The injection molding apparatus 100 includes an injection molding machine 110 and a feeding device 120 connected to the injection molding machine 110. The feeding device 120 includes a base 1, a storage mechanism 2, a connection mechanism 3, and a driving mechanism 4.

Referring to FIGS. 3, 4 and 5, the storage mechanism 2 includes a storage container 21, a piston 22, and a load bearing assembly 23. The storage container 21 is a disposable storage barrel. The storage container 21 has a hollow cylindrical shape and its axial direction extends along a first lateral X. The storage container 21 is formed with a storage space 211 and a through hole 212 communicating with the storage space 211. The storage space 211 is used for containing a liquid material 5 (as shown in FIG. 7). The storage space 211 has an opening 213 opposite to the through hole 212. The liquid material 5 can be filled into the storage space 211 through the opening 213. The storage container 21 of this embodiment is made of a plastic material. In other embodiments, the storage container 21 may also be made of other non-metallic or metal lightweight materials with the function of storing the liquid material 5, such as a thin-walled stainless steel tube with a wall thickness of less than 6 mm, so that it can be filled with The replacement process will not affect operation or transportation due to excessive weight. On the contrary, due to the limitation of the material and wall thickness of the storage container 21, the structure itself has the risk of deforming or even rupturing the container structure due to being squeezed by the liquid material 5 during operation. In addition, in other embodiments, for example, when the storage container 21 is made of stainless steel tube, in order to save costs, after each use of the storage container 21, it can also be cleaned according to the useable condition of the storage container 21. Reuse rather than discard directly.

The piston 22 is inserted into the storage space 211 through the opening 213. The piston 22 can move in the storage space 211 toward the feed hole 212 and squeeze the liquid material 5 to squeeze the liquid material 5 through the feed hole 212. Storage space 211. In this embodiment, the piston 22 includes a cover body 221 and a support plug body 222. Cover 221 is made of plastic material It is made and has an extruding wall 223 for extruding the liquid material 5 and an outer peripheral wall 224 formed on the outer periphery of the extruding wall 223. The outer peripheral wall 224 abuts an inner peripheral surface 214 of the storage container 21. The extrusion wall 223 and the peripheral wall 224 together define a groove 225. The support plug body 222 is a block structure made of plastic material. The shape of the support plug body 222 is the same as the shape of the groove 225 and is filled in the groove 225 to support the cover 221, thereby preventing the piston 22 from being driven. The cover 221 is deformed during the process of squeezing the material in the storage space 211 by the pressure applied by the mechanism 4. In addition to supporting the cover body 221, the support plug body 222 also spreads the outer peripheral wall 224 outward so as to tightly contact the inner peripheral surface 214, thereby preventing the squeeze wall 223 from being liquid during the process of squeezing the liquid material 5. The material 5 flows out through the gap between the outer peripheral wall 224 and the inner peripheral surface 214, thereby causing leakage.

The load bearing assembly 23 includes a load frame 24 and a pressure-resistant container 26. The carrier 24 includes a base 241, a cover 242, two pivot members 243, two first locking members 244, and two second locking members 245. The base 241 is fixed on the base 1 and has a base 246 and an end wall 247 formed at one end of the base 246. The base 246 defines a first accommodating groove 248. The first accommodating groove 248 is semicircular and extends along the first transverse direction X and has an upper opening 249. The end wall 247 protrudes from the top of the base 246 and defines a positioning groove 250 communicating with one end of the first receiving groove 248. The first receiving groove 248 and the positioning groove 250 are used for receiving the pressure-resistant container 26. The cover 242 is configured to cover the base 241 and define a second accommodating groove 251. The second accommodating groove 251 is semicircular and extends along the first lateral direction X. The second receiving groove 251 and the first receiving groove 248 are upside down and have a lower opening 252. The two receiving slots 251 are used for receiving the pressure-resistant container 26.

The two pivotal members 243 are disposed between the base 246 and the cover 242 of the base 241. The two pivotal members 243 are located on the same side of the base 246 and the cover 242 and spaced apart along the first lateral direction X. Each pivotal member 243 is a hinge connected to the top end of the base 246 and the bottom end of the cover 242. Thereby, the cover 242 can open the first receiving slot 248 and the positioning slot 250 with the pivoting member 243 relative to the base 241 in an open position (as shown in FIG. 8), and cover the first receiving slot. Rotate between 248 and the cover position of the positioning groove 250 (as shown in FIG. 3).

The two first locking members 244 are disposed on the outer surface of the base 246 of the base 241 opposite to the pivoting member 243 and spaced along the first transverse X. Each first locking member 244 is corresponding to the corresponding pivot. The connecting members 243 are spaced along a second transverse Y perpendicular to the first transverse X. Each of the first locking members 244 includes a bracket 253, a pivoting plate 254, and a buckle 255. The bracket 253 is fixed on the outer surface of the base 246. The pivoting plate 254 is rotatably pivotally connected to the bracket 253 near the top end. The buckle 255 is rotatably pivotally connected to the pivot plate 254 and can be driven by the pivot plate 254 to rise or fall. The two second locking members 245 are disposed on the outer surface of the cover 242 opposite to the other side of the pivot member 243 and are spaced apart from each other along the first transverse direction X. Each of the second locking members 245 is a V-shaped buckle fixed to the outer surface of the cover 242. When the cover 242 is in the cover position, the buckle 255 of each first lock member 244 can be locked to the corresponding second lock member 245 to lock the cover 242 in the cover position.

It should be noted that in other implementations of this embodiment, the number of the pivot members 243 may also be one, and the cover 242 can also reach the relative position through the pivot members 243. The effect of rotation on the base 241. In addition, the number of the first locking members 244 and the number of the second locking members 245 can also be one respectively, so that the effect of locking the cover 242 in the cover position can be achieved as well.

The base 246 and the end wall 247 of the base 241 together define a first cooling liquid flow path 256, and the cover 242 defines a second cooling liquid flow path 257. The first cooling liquid flow path 256 and the second cooling liquid flow path 257 are passed through the cooling liquid to cool the base 241 and the cover 242 to reduce the temperature of the two at normal temperature.

The pressure-resistant container 26 is disposed in the first receiving groove 248 and the positioning groove 250 of the base 241. The pressure-resistant container 26 is a cylindrical structure made of, for example, general steel or stainless steel or other metal materials, and can be reused. In this example, the pressure-resistant container 26 is pressure-resistant to 300 bar. The pressure-resistant container 26 also forms an accommodating space 260 for accommodating the storage container 21. The accommodating space 260 has an opening portion 261, and the storage container 21 can pass through the accommodating space 260 through the opening portion 261 or Move away from the accommodation space 260. When the storage container 21 is inserted into the accommodating space 260, the pressure-resistant container 26 is wrapped around the storage container 21. Thereby, in the process of extruding the piston 22 by the pressure applied by the driving mechanism 4, as described above, the storage container 21 made of plastic, for example, is squeezed by the liquid material 5, and the structure itself may be in operation. Outer expansion deformation occurs, but by compressing the pressure container 26 and surrounding the storage container 21, deformation of the storage container 21 can be avoided, and a gap between the inner peripheral surface 214 and the outer peripheral wall 224 can be avoided, thereby causing Missing material.

In this embodiment, the pressure-resistant container 26 includes an end cap 262 and a removable The sleeve 263 is detachably coupled to the end cap 262. The end cover 262 is disposed in the positioning groove 250. The end cover 262 is formed with a screw hole 264, a receiving slot 265 communicating with the screw hole 264, and a plurality of screw connection holes 266 surrounding the outer periphery of the screw hole 264. The receiving groove 265 is used for accommodating the storage container 21 at a position adjacent to the through hole 212. The end cover 262 is locked to the end wall 247 by a plurality of screws 258. Each screw 252 is threaded through a corresponding through hole 259 of the end wall 247 and is screwed to a corresponding screw hole 266 of the end cover 262. The end cover 262 can be locked to the end wall 247 so that the end cover 262 is stably positioned in the positioning groove 250. The end cap 262 has a surrounding wall 267 and a plurality of first joint portions 268 disposed on the surrounding wall 267 and spaced apart from each other. The sleeve 263 is disposed in the first accommodating groove 248. The sleeve 263 has a hollow cylindrical shape and its axial direction extends along the first lateral direction X. The length of the sleeve 263 is slightly smaller than the length of the storage container 21. The sleeve 263 is formed with a through hole 269 having an opening portion 261 and a through hole portion 270 opposite to the opening portion 261. The perforation 269 of the sleeve 263 and the receiving groove 265 of the end cover 262 together define a receiving space 260. The sleeve 263 has a plurality of second engaging portions 271 arranged at intervals and adjacent to the opening portion 270. Each second engaging portion 271 is detachably engaged with the corresponding first engaging portion 268, so that the sleeve 263 is detachably engaged.于 端盖 262.

Specifically, one of the first engaging portion 268 of the end cover 262 and the second engaging portion 271 of the sleeve 263 is an L-shaped latching slot, and the other is a latching block latched in the latching slot. In this embodiment, the first joint portion 268 is a latch block protruding from the outer wall surface of the surrounding wall 267, and the second joint portion 271 is an L-shaped latch groove. The second joint portion 271 has a first groove portion 272 extending along the first transverse direction X, and a communication with the first groove portion 272. And a second groove portion 273 perpendicular thereto.

Referring to FIGS. 1 and 3, the connecting mechanism 3 includes a connecting pipe 31 and a pressure regulating valve 32. The connecting pipe 31 has a first connecting portion 311 and a second connecting portion 312 opposite to the first connecting portion 311. The first connection portion 311 is a screw connection portion screwed into the screw hole 264 of the end cover 262, and the second connection portion 312 is connected to the pressure regulating valve 32. The pressure regulating valve 32 is connected to the injection molding machine 110. The connecting pipe 31 is used to convey the liquid material 5 discharged from the through hole 212 to the pressure regulating valve 32, and the pressure regulating valve 32 can adjust the pressure of the liquid material 5 delivered to the injection molding machine 110 according to demand.

The driving mechanism 4 includes a cylinder body 41 fixed on the base 1 and a rod member 42 penetrating the cylinder body 41 and capable of moving telescopically relative to the cylinder body 41. A head 421 of the rod member 42 is spaced a distance from the support plug body 222 of the piston 22 along the first transverse direction X. The rod 42 of the driving mechanism 4 moves along the first lateral X and applies a stable thrust through the head 421 to push the support plug 222 to drive the piston 22 toward the through hole 212 and pass the liquid material 5 through the through hole. 212 is extruded, so that the liquid material 5 can be sequentially conveyed into the injection molding machine 110 through the connecting pipe 31 and the pressure regulating valve 32. In this embodiment, the driving mechanism 4 drives the rod 42 through the hydraulic or pneumatic cylinder 41 to push the piston 22, but other conventional transmission mechanisms for pushing the piston 22 may also be used, which is not limited to this example.

The following describes the method for feeding the liquid material 5 to the injection molding machine 110. Referring to FIG. 6, the liquid material 5 in this embodiment is fed to the injection molding machine 110. The method includes the following steps: a mixing step S1, a defoaming step S2, a liquid material filling step S3, a storage container installation step S4, and a liquid material feeding step S5.

In the mixing step S1, at least two liquid component materials are filled into a container, and then the two liquid component materials are uniformly stirred through a stirrer to mix the two to form a liquid material 5. In this embodiment, the two liquid composition materials are respectively taken as liquid assembly materials A and B as an example, and the liquid material 5 is taken as a thermosetting liquid silicone rubber as an example. In order to make the liquid material 5 have a color to inject a finished product with a specific color or to perform a trial mold on the liquid material 5 with a color, in the mixing step S1, at least one additional material with a color may be simultaneously filled into the container. , So that the agitator can uniformly stir the two liquid composition materials and the added materials to form a color liquid material 5.

Since the agitator is mixed with air during the mixing of the aforementioned materials, a defoaming step S2 must be performed after the mixing is completed to avoid the residual air from affecting the quality of the liquid material 5. In the defoaming step S2, the agitated liquid material 5 is charged into a deaerator, and the liquid material 5 is centrifuged and deaerated by the deaerator to remove air bubbles remaining in the liquid material 5, which can improve the liquid material. 5 density.

Referring to FIGS. 6 and 7, in the step S3 of filling the liquid material, the defoamed liquid material 5 is filled into the storage space 211 of the disposable storage container 21 through an opening 213 through a filler. After the filling is completed, the piston 22 is inserted into the storage space 211 through the opening 213 to close the opening 213.

Referring to FIGS. 6 and 8, in step S4 of installing a storage container, first, The storage container 21 is inserted into the perforation 269 through the opening 261 of the sleeve 263. Since the length of the sleeve 263 is slightly smaller than the length of the storage container 21, after the storage container 21 is installed, the portion of the storage container 21 adjacent to the through hole 212 will protrude from the sleeve through the opening portion 270. 263, and one end of the storage container 21 where the opening portion 213 is formed is close to the opening portion 261 of the sleeve 263.

Referring to FIG. 8, FIG. 9 and FIG. 10, the cover 242 is rotated to the open position, so that the first receiving groove 248 and the end cover 262 fixed in the positioning groove 250 are exposed. Next, the sleeve 263 and the storage container 21 are placed in the first receiving groove 248 through the upper opening 249 along the downward moving direction D1 parallel to a longitudinal direction Z. Since each of the first joint portions 268 of the end cover 262 is located in the first receiving groove 248, the operator can clearly see the position of the first joint portion 268. After the sleeve 263 is rotated by an appropriate angle, the first groove portion 272 of the second joint portion 271 can be quickly aligned with the first joint portion 268.

Subsequently, the sleeve 263 and the storage container 21 are pushed along a first direction P1 parallel to the first transverse direction X to move the two along the first receiving groove 248. During the movement of the sleeve 263, the first joint portion 268 penetrates into the first groove portion 272 and the second groove portion 273 approaches the first joint portion 268. When the first joint portion 268 penetrates into the second groove portion 273, the sleeve 263 is blocked by the first joint portion 268 and cannot continue to move. At this time, the portion of the storage container 21 adjacent to the through hole 212 extends into the receiving groove 265 of the end cover 262.

Then, the sleeve 263 is rotated at an appropriate angle so that the end of the second groove portion 273 opposite to the first groove portion 272 approaches the first joint portion 268. When the first joint portion 268 When locked on the end of the second groove portion 273 opposite to the first groove portion 272, the sleeve 263 can be prevented from moving in the first transverse direction X. At this time, the sleeve 263 is firmly positioned on the end cover 262, and the material is stored. The container 21 is positioned in the accommodating space 260 of the pressure-resistant container 26 as shown in FIG. 3.

Referring to FIG. 2 and FIG. 3, the cover 242 is rotated from the open position toward the base 246. When the cover 242 is rotated to the cover position as shown in FIG. The two receiving grooves 251 are inside, and the cover 242 covers the sleeve 263 positioned in the first receiving groove 248. Next, the pivoting plate 254 of each first locking member 244 is rotated upward to drive the buckling ring 255 to a position above the corresponding second locking member 245. Subsequently, the pivoting plate 254 is rotated downward to drive the buckle 255 to the corresponding second locking member 245, so that the cover 242 can be locked in the closed position. At this time, the storage container 21 is installed on the Steps for bearing assembly 23.

Referring to FIG. 6 and FIG. 12, in step S5 of feeding the liquid material, the rod 42 of the driving mechanism 4 moves in the first direction P1 and applies a stable thrust through the head 421 to push the support plug 222 to drive the piston. 22 moves toward the feed hole 212 and squeezes the liquid material 5 through the feed hole 212, so that the liquid material 5 is sequentially fed to the injection molding machine 110 through the first-stage channel 310 of the connection pipe 31 and the pressure regulating valve 32 (as shown in the figure) 1)). The temperature of the base 241 and the cover 242 at normal temperature is cooled by the cooling liquid, thereby preventing the liquid material 5 in the storage container 21 from solidifying, so that the liquid material 5 can maintain a fluid state and can be squeezed by the piston 22 Instead, it flows in the storage space 211.

Since the liquid material 5 is a thick and viscous fluid, The rod 42 of the structure 4 needs to apply a certain degree of pressure to the piston 22 to make it smoothly squeeze the liquid material 5 to flow. By covering the pressure container 26 and surrounding it around the storage container 21 and the design of the support plug 222 and the cover 221, the rod 42 can be prevented from applying a large pressure to the piston 22 to push it, The storage container 21 and the cover 221 may be deformed and cause leakage. In addition, the end cap 262 of metal material is screwed with the first connection portion 311 of the metal connection pipe 31 by the screw hole 264, which can improve the structural strength when the two are connected and can withstand the pushing process. pressure. By the aforementioned design method, the rod 42 of the driving mechanism 4 can apply a pressure of, for example, about 40 bar to the piston 22, so that the piston 22 can smoothly squeeze the liquid material 5 into the injection molding machine 110, thereby, The time taken to feed the liquid material 5 into the injection molding machine 110 can be shortened.

Referring to FIG. 4, FIG. 9 and FIG. 10, after the feeding operation of the liquid material 5 is completed, the rod 42 of the driving mechanism 4 will return to the initial position as shown in FIG. 9. Then, the pivoting plate 254 of each first locking member 244 is rotated upward to drive the buckle 255 to rise and release from the corresponding second locking member 245. At this time, the cover 242 can be rotated to the open position. Subsequently, the sleeve 263 is rotated at an appropriate angle so that the end of the second groove portion 273 communicating with the first groove portion 272 approaches the first joint portion 268. When the first joint portion 268 is aligned with the first groove portion 272, the sleeve 263 is pulled in a second direction P2 opposite to the first direction P1 to move the first joint portion 268 away from the first groove portion 272. When the sleeve 263 drives the storage container 21 to the position shown in FIG. 9, the portion of the storage container 21 adjacent to the through hole 212 is displaced from the storage groove 265. At this time, the storage container 21 can be moved in a direction opposite to the downward direction D1. Up direction D2 takes out the sleeve 263 and the storage container 21 from the first receiving groove 248. After that, after pulling the storage container 21 away from the sleeve 263 in the second direction P2, the empty storage container 21 can be discarded.

The cover 242 is pivotally connected to the base 246 of the base 241 through the pivoting member 243, so that the operator can conveniently rotate the cover 242 between the open position and the cover position. In addition, with the design of the first locking member 244 and the second locking member 245, the operator can conveniently and quickly perform the first locking member 244 and the second locking member without the assistance of other additional tools. 245 lock operation and release operation.

The end cap 262 is locked to the end wall 247, and the sleeve 263 is detachably connected to the end cap 262, so that the storage container 21 can be positioned at the same time after being connected to the end cap 263 through the sleeve 263. Inside the space 260 and the base 241, and after the storage container 21 is detached from the end cover 263 through the sleeve 263, the end cover 262 and the base 241 can be removed first, and then removed from the sleeve 263. Since the assembling and disassembling of the aforementioned storage container 21 does not require the operation of assembling or disassembling the end cover 262 and the end wall 247 ', the convenience of assembling and disassembling the storage container 21 can be improved. Furthermore, with the design of the sleeve 263 detachably connected to the end cap 262, the sleeve 263 and the storage container 21 can be placed in the first receiving groove 248 along the downward movement direction D1 during assembly, or During disassembly, it can be taken out from the first receiving groove 248 along the upward moving direction D2. Thereby, the position where the driving mechanism 4 is arranged on the base 1 can be close to the supporting frame 24, so as to reduce the length of the driving mechanism 4 and the supporting frame 24 occupying the base 1 in the first transverse direction X, and reduce the entire feeding device 120. volume of.

It should be noted that, in other embodiments, one of the first joint portion 268 of the end cap 262 and the second joint portion 271 of the sleeve 263 is an external thread segment, and the other is a threaded connection to the outer portion. Internally threaded segment of a threaded segment. In addition, the end cap 262 and the sleeve 263 of the pressure-resistant container 26 may also be connected together by a manufacturing method in which the pressure-resistant container 26 is a single member.

Referring to FIG. 3, before performing the trial operation of the liquid material 5 in another color, the first connection portion 311 of the connection pipe 31 is detached from the screw hole 264 of the end cover 262, and the pressure regulating valve 32 is detached from the connection pipe. The second connection portion 312 of 31 then cleans the flow passages inside the connection pipe 31 and the pressure regulating valve 32. After the cleaning is completed, the first connection portion 311 of the connection pipe 31 is screwed to the screw hole 264 and the pressure regulating valve 32 is connected to the second connection portion 312, and the feeding device 120 can perform the feeding of the liquid material 5 in another color. material. When the test of the liquid material 5 of another color is performed, in the mixing step S1, the additive material of another color is mixed with the two liquid component materials to form the liquid material 5 of another color, and then the defoaming step S2 is repeated. Step S3 of filling the liquid material, step S4 of installing the storage container, and step S5 of feeding the liquid material can complete the test pattern of the liquid material 5 of another color.

In the liquid material feeding method of this embodiment, in the process of performing a mold test on a plurality of liquid materials of different colors, after performing the liquid material test of one color, only the connection pipe 31 and the pressure regulating valve 32 need to be cleaned. Compared with the prior art, it can save man-hours for cleaning feeders, kneaders and pigment tubes, and can reduce The raw materials remaining in the aforementioned components are lost to reduce manufacturing costs.

On the other hand, since the mixed liquid material 5 is stored in the storage space 211 of the storage container 21 in advance, when the injection molding machine 110 wants to perform injection molding of a small amount of the liquid material 5 such as 4 g or less, The rod 22 of the driving mechanism 4 pushes the piston 22 to press the liquid material 5, and a small amount of the liquid material 5 can be smoothly pressed to be fed into the injection molding machine 110. Compared with the prior art, it is possible to avoid a situation in which the amount of the liquid material 5 fed into the injection molding machine 110 is small and the mixing is not uniform.

In short, the method for feeding the liquid material 5 to the injection molding machine 110 in this embodiment includes the following steps: filling the liquid material 5 into a disposable storage container 21, and the structure of the storage container 21 may be in operation Medium deformation; install storage container 21 to reusable pressure-resistant container 26; squeeze liquid material 5 out of storage container 21 to feed liquid material 5 into injection molding machine 110; store storage container 21 from pressure Take out container 26; and discard storage container 21.

In other implementations of this embodiment, when the storage container 21 is made of stainless steel tube and can be reused after cleaning, the aforesaid last step can be replaced by cleaning the storage container 21 to clean it. For reuse.

Referring to FIGS. 13 and 14, there is shown a second embodiment of an injection molding apparatus having a feeding device according to the present invention. The overall structure is substantially the same as the first embodiment, except for the structure of the connecting mechanism 3.

The connecting pipe 31 is a three-way pipe, and the connecting pipe 31 further has a third connecting portion 313 located between the first connecting portion 311 and the second connecting portion 312. The connecting mechanism 3 further includes a storage valve group 33. The storage valve group 33 includes an adapter 331 connected to the third connection portion 313, a control valve 332, and a check valve 333. The adapter 331 is formed with an inflow channel 334 which is in communication with the flow channel 310 of the connecting pipe 31. The control valve 332 is disposed upstream of the inflow channel 334 to control the flow and blocking of the inflow channel 334. The check valve 333 is disposed downstream of the inlet passage 334 to control the inlet passage 334 to flow in one direction in the direction of the connecting pipe 31.

The injection molding apparatus 100 further includes a feeding device 130 connected to the adapter 331. The feeding device 130 is used to supply the liquid material 5 to the adapter 331. The feeding device 130 includes two feeders 131 and a mixer 132. The feeding pressures generated by the two feeders 131 respectively transport the liquid assembly materials A and B into the mixer 132 and are mixed into the liquid material 5 through the mixer 132.

Referring to FIG. 13 and FIG. 15, in this embodiment, after the liquid material 5 in the storage container 21 has been completely fed to the injection molding machine 110, the control valve 332 is driven to operate the inflow channel 334 in a circulating state. Then, the feeding pressure generated by the two feeders 131 presses the liquid material 5 to be conveyed into the inflow channel 334 of the adapter 331. During the flow of the liquid material 5 in the flow passage 334, a ball plug 335 of the check valve 333 is pressed to make it Move down to switch the inflow channel 334 to the circulation state. At this time, the liquid material 5 can flow in one direction toward the connection pipe 31. After that, the liquid material 5 flows into the storage space 211 through the flow channel 310 and the through hole 212, and pushes the piston 22 along the second direction P2. Thereby, the liquid material 5 can be quickly replenished into the storage space 211, so that the feeding device 120 can quickly and again perform the feeding operation of a small amount of the liquid material 5.

Referring to FIG. 16, in another embodiment of this embodiment, the injection molding apparatus 100 includes a plurality of injection molding machines 110 and a plurality of feeding devices 120 respectively connected to the injection molding machines 110. The number of injection molding machines 110 and the number of feeding devices 120 in FIG. 16 are two examples. The feeding device 130 is connected to the adapter 331 of the two feeding devices 120, and the control valve 332 (as shown in FIG. 15) of each feeding device 120 is used to switch the flow and block of the flow channel 334, so that the feeding device 130 The liquid material 5 mixed by the mixer 132 can be supplied into the storage space 211 (as shown in FIG. 15) of any feeding device 120, so that each feeding device 120 can quickly and again perform a small amount of the liquid material 5. Feed operation.

In summary, the injection molding equipment 100 of each embodiment uses the storage container 21 as a disposable type or can be reused after cleaning and detachably assembled and positioned in the pressure-resistant container 26 carrying the assembly 23, which can Save cleaning man-hours and costs. In addition, the mixed liquid material 5 is stored in the storage space 211 of the storage container 21 in advance, thereby providing a uniformly mixed liquid material 5 into the injection molding machine 110, so it can indeed achieve the cost of the invention. purpose.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (16)

A feeding device is suitable for connecting with an injection molding machine. The feeding device includes: a storage mechanism, including a bearing assembly, a storage container detachably assembled and positioned on the bearing assembly, and a piston. The storage container is disposable and formed with a storage space, and a through hole communicating with the storage space. The storage space is used for containing a liquid material, and the piston is movably inserted in the storage space. Inside the storage space; and a driving mechanism for pushing the piston to move toward the through hole, so that the piston squeezes the liquid material through the through hole to convey to the injection molding machine. The feeding device according to claim 1, wherein the load-bearing assembly includes a reusable pressure-resistant container that is wrapped and enclosed around the periphery of the storage container, and the pressure-resistant container forms a receiving space. The accommodating space has an opening, and the storage container can pass through the accommodating space or move away from the accommodating space through the opening. The feeding device according to claim 2, wherein the load bearing assembly further comprises a load frame, the load frame includes a base, and a cover, the pressure-resistant container is disposed in the base, and the cover can be opposite to The base moves between an open position where the pressure-resistant container is exposed and a cover position which covers the pressure-resistant container. The feeding device according to claim 2, further comprising a pressure regulating valve and a connecting pipe having a first connecting portion screwed to one end of the pressure-resistant container, and a connecting pipe connected to the pressure regulating valve.第二 连接 部。 The second connection portion. A feeding device is suitable for connecting with an injection molding machine. The feeding device comprises: a load bearing assembly, including a reusable pressure-resistant container; and a pressure assembly detachably assembled and positioned on the load bearing assembly. A disposable storage container for a container is used to store a liquid material, the storage container has a through hole at one end; a piston is movably disposed in the storage container; and a driving mechanism is used for pushing The piston moves in the direction of the through hole, so that the piston squeezes the liquid material through the through hole to convey to the injection molding machine. A feeding device is suitable for connecting with an injection molding machine. The feeding device comprises: a reusable pressure-resistant container; a base for the pressure-resistant container to be set; and a cover, which can be positioned relative to the base. A movement between an open position where the pressure-resistant container is exposed and a cover position covering the pressure-resistant container; a storage container detachably assembled in the pressure-resistant container for storing a liquid material, the A storage container has a through hole at one end; a piston movably penetrates the storage container; and a driving mechanism for pushing the piston to move toward the through hole so that the piston passes the liquid material through The through hole is extruded for conveyance to the injection molding machine. A feeding device is suitable for connecting with an injection molding machine. The feeding device comprises: a reusable pressure-resistant container; a storage container detachably assembled in the pressure-resistant container; the storage container structure It may be deformed during operation and used to store a liquid material. The storage container has a through hole at one end; a piston movably penetrates the storage container; and a drive mechanism for pushing the piston toward the The direction of the through hole is moved, so that the piston squeezes the liquid material through the through hole to convey to the injection molding machine. An injection molding device having a feeding device includes: at least one injection molding machine; at least one feeding device includes: a storage mechanism including a load bearing assembly and a storage assembly detachably assembled and positioned on the load bearing assembly A storage container and a piston, the storage container is disposable and formed with a storage space, and a through hole communicating with the storage space, the storage space is used for containing a liquid material, and the piston Movably disposed in the storage space; a connecting mechanism connected between the bearing assembly and the injection molding machine; and a driving mechanism for pushing the piston to move toward the through hole so that the The piston extrudes the liquid material through the through hole and conveys the injection molding machine through the connection mechanism. The injection molding device with a feeding device according to claim 8, wherein the load bearing assembly includes a reusable pressure-resistant container that is wrapped and bound around the periphery of the storage container, and the pressure-resistant container is formed with a The accommodating space has an opening portion, and the storage container can pass through the accommodating space or move away from the accommodating space through the opening portion. The injection molding device with a feeding device according to claim 9, wherein the load bearing assembly further includes a load frame including a base and a cover, and the pressure-resistant container is disposed in the base, The cover is movable relative to the base between an open position where the pressure-resistant container is exposed and a cover position where the pressure-resistant container is covered. The injection molding apparatus having a feeding device according to claim 8 or 9, wherein the connection mechanism includes a connection pipe having a first connection portion and a third connection portion connected to the pressure-resistant container, the The connecting mechanism further includes a storage valve group, the storage valve group including an adapter connected to the third connection portion and a control valve, the adapter forming an inlet channel communicating with the connection pipe, the A control valve is disposed upstream of the inflow channel to control the flow and block of the inflow channel. The injection molding equipment further includes a feeding device connected to the adapter. The injection molding equipment having a feeding device according to claim 11, comprising a plurality of injection molding machines and a plurality of feeding devices respectively connected to the injection molding machines, and the feeding device is connected to the feeding devices Of the adapter. A method for feeding a liquid material to an injection molding machine includes the steps of: mixing at least two constituent materials through a stirrer to form a liquid material, filling the liquid material into a disposable storage container; and installing the A storage container to a carrying assembly; and a piston through a driving mechanism to push the liquid material out of the storage container, so that the liquid material is fed into an injection molding machine. A method for feeding a liquid material to an injection molding machine includes the following steps: filling a liquid material into a disposable storage container; installing the storage container into a reusable pressure-resistant container; The material is squeezed out of the storage container to feed the liquid material into an injection molding machine; the storage container is taken out of the pressure-resistant container; and the storage container is discarded. A method for feeding a liquid material to an injection molding machine includes the following steps: filling a liquid material into a storage container; installing the storage container into a reusable pressure-resistant container; extruding the liquid material into the A storage container for feeding the liquid material into an injection molding machine; taking the storage container from the pressure-resistant container; and cleaning the storage container for repeated use. A method for feeding a liquid material to an injection molding machine, including the following steps: filling a liquid material into a storage container whose structure itself may be deformed during operation; installing the storage container to a reusable pressure-resistant container A container; extruding the liquid material into the storage container to feed the liquid material into an injection molding machine; and taking out the storage container from the pressure-resistant container.