JP3216818U - Molding device - Google Patents

Abstract

An object of the present invention is to provide a molding apparatus that has a low possibility of breakage of internal components and that is excellent in production volume within a unit time. A first control valve unit (6) is provided between a material mixing unit (3) and an injection unit (4), and a second control valve unit (7) is provided between the injection unit (4) and a die block unit (5). When the first control valve of the second control valve unit 7 is open and the second control valve of the second control valve unit 7 is closed, the molten plastic can flow from the second material mixing pipe 36 into the material storage pipe 41, and When the molten plastic cannot flow into the die block unit 5 and the first control valve is closed and one of the second control valves is open, the material injection drive mechanism 42 is used to open it. Molten plastic is injected into the die block unit 5 corresponding to the second control valve. [Selection] Figure 5

Description

  The present invention relates to a molding apparatus, and more particularly to a molding apparatus that performs injection molding.

  As shown in FIG. 1, the pressure injection molding machine shown in Patent Document 1 below includes a material injection device 10 and a die block device 11. The die block device 11 also includes a fixed die block 111 and a moving die block 112 that can move relative to the fixed die block 111. At the time of injection molding, in the die block device 11, the motion die block 112 and the fixed die block 111 are combined, and the material injection device 10 moves the molten plastic (hereinafter referred to as “molten plastic”) to the motion die. After being injected into a cavity (not shown) defined by the block 112 and the fixed die block 111 and cooled, the moving die block 112 is detached from the fixed die block 111, and the injection product is taken out.

  However, the pressure injection molding machine in FIG. 1 can inject only one die block device 11 per injection, and after injection, the product cannot be taken out until the molten plastic has cooled down. It was difficult to increase production efficiency, and there was still room for improvement.

  In view of such a problem, in recent years, a multistage pressure injection molding machine in which a plurality of die block devices 11 are arranged in a line and sequentially injected while shifting the time is used. The following patent document 2 is mentioned as such a multistage pressure injection molding machine.

  The multistage pressure injection molding machine of Patent Document 2 operates as described with reference to FIGS. Here, FIG. 2 is a view showing a combination of multistage type pressure injection molding machines of the prior art. FIG. 3 is a partially enlarged view of a multi-stage pressure injection molding machine, illustrating a main switch valve of a control valve unit. FIG. 4 is a partially enlarged view when a gap between the moving member 234 and the ring member 235 is opened.

  As shown in FIG. 2, the pressure injection molding machine includes a material supply device 20, an injection device 21, four die block devices 22, and a control valve unit 23.

  The material supply apparatus 20 includes a material mixing tube 201 and a screw rod 202 that is rotatably accommodated in the material mixing tube 201. The injection device 21 includes a material storage tube 211 and a material injection drive member 212.

  As shown in FIG. 2, the control valve unit 23 includes a main switch valve 231 between the material supply device 20 and the injection device 21, and four sub switch valves provided between the injection device 21 and each die block device 22. 232.

  As shown in FIG. 3, the main switch valve 231 includes a pipe body 233, a moving member 234, and a ring member 235.

  As shown in FIG. 2, when the screw rod 202 of the material supply device 20 rotates and feeds the material to the injection device 21, the pressure of the material mixing tube 201 is larger than the pressure of the material storage tube 211, so 3 can be pushed and moved, and the molten plastic can be poured into the material storage pipe 211 of FIG. 2 from the gap between the inclined surfaces of the moving member 234 and the ring member 235.

  On the other hand, when the amount of the molten plastic in the material storage pipe 211 is large, the pressure in the material storage pipe 211 becomes larger than the pressure in the material mixing pipe 201, and the moving member 234 is moved back to the original position. And the gap on the slope between the ring member 235 and the ring member 235 are closed (FIG. 4). Following these operations, the material injection drive member 212 is used to push the molten plastic in the material storage tube 211, open the sub-switch valve 232 in turn, and sequentially insert the molten plastic into each die block device 22, It is possible to produce more products in the unit time than the prior art of FIG.

Taiwan Utility Model Registration No. M380878 Specification Taiwan Utility Model Registration No. M471357 Specification

  However, this type of pressure injection molding machine often mixes materials unevenly, and during the injection process, the main switch valve 231 is prone to material leaks and internal parts are broken, resulting in frequent maintenance. There was a problem that had to be done.

  In view of such problems, the present invention provides a molding apparatus that can mix materials uniformly, has a low possibility of damage to internal components, and is excellent in production volume within a unit time. Objective.

  In order to solve such a problem, the molding apparatus of the present invention has the following configuration. A material mixing unit extending in a first direction; an injection unit provided in front of the first direction relative to the material mixing unit; and between the material mixing unit and the injection unit in the first direction. A first control valve unit provided, at least two die block units provided so as to sandwich the first control valve unit in a second direction orthogonal to the first direction, and the injection unit, respectively. A pair of second control valve units provided between the die block units and extending in the second direction, and the material supply unit includes a first material mixing tube extending in the first direction; The first tube is extended in the first direction and is rotatably accommodated in the first material mixing tube with its own axis parallel to the first direction as a rotation axis. A Liu rod, a second material mixing tube formed to extend in the first direction and communicating with the first material mixing tube on the front side of the first direction, and parallel to the first direction And a pair of second screw rods provided in the second material mixing tube rotating in different directions around its own axis, and the injection unit is a material storage tube extending in the first direction. And a material injection drive mechanism connected to the material storage pipe, the first control valve unit extending in the first direction, and the second material mixing pipe and the material storage pipe A first connecting pipe that defines a first fluid passage that communicates with the first connecting pipe, and a state in which the molten plastic flows in the first fluid passage is rotatably provided in the first connecting pipe so that it can be controlled by an external operation. The first control valve Each of the second control valve units extends in the second direction and includes a second connecting pipe that defines a second fluid passage that communicates the material storage pipe with any one of the die block units. A second control valve rotatably provided on the second connecting pipe so that the state in which the molten plastic flows in the second fluid passage can be controlled by an external operation, and the first control valve comprises: When open and the second control valve is closed, the molten plastic can flow from the second material mixing tube into the material storage tube, and the molten plastic can flow into the die block unit. When the first control valve is closed and one of the second control valves is open, the second control valve is opened by the material injection drive mechanism. Molten plastic is injected into the die block unit corresponding to.

  The present invention has the following excellent effects. First, during the material injection operation, the first control valve is closed to prevent molten plastic from leaking from the material storage pipe and returning to the material supply unit, so that the possibility of damage to the internal components is low and maintenance is easy. . Secondly, because it was designed using a die block unit, a first control valve unit, and a second control valve unit, molten plastic can be put in the die block unit one after another, producing many products per unit time. Because it can, production efficiency is good.

It is a front view of the pressure injection molding machine of a prior art. It is the figure which showed the combination of the pressure injection molding machine of a prior art. It is the elements on larger scale of the pressure injection molding machine of a prior art, and demonstrates the main switch valve of a control valve unit. FIG. 4 is a partially enlarged view showing a state where a gap between a moving member and a ring member is closed in the pressure injection molding machine of FIG. 3. It is an assembly drawing of the Example of this invention. It is the elements on larger scale of FIG. It is a front view of the principal part of a present Example. It is an assembly perspective view of a present Example, and is a figure explaining the state which opened the 1st control valve and closed the 2nd control valve. It is a front view of the die block unit of a present Example, and is a figure explaining the case where an upper metal mold | die exists in the position opened with respect to the lower metal mold | die. It is a front view of the die block unit of a present Example, and is a figure explaining the case where the upper metal mold | die is in the position closed with respect to the lower metal mold | die. It is a block diagram of a present Example, and a control processing unit is a block diagram which shows the state electrically connected with the 1st drive mechanism, the 2nd drive mechanism, the 1st control valve unit, and two 2nd control valve units. . It is a fragmentary sectional view of a present Example, and is a figure of the state which molten plastic flowed into the material storage pipe | tube of an injection unit, and was pushed and moved so that the plunger rod of a material injection drive mechanism might move forward. It is an assembly perspective view, and is a figure explaining the state where the 1st control valve was closed and the 2nd control valve was opened. It is a fragmentary sectional view and is a figure explaining the state where the plunger rod of the material injection drive mechanism pushes and moves the molten plastic to the rear and puts the molten plastic into the die block unit.

  An embodiment of the molding apparatus of the present invention will be described with reference to FIG. Here, FIG. 5 is an assembly diagram of an embodiment of the present invention. As shown in FIG. 5, the molding device of the present invention includes a material supply unit 3 provided on the rear side in the front-rear direction X, and a left-right direction intersecting (orthogonal in the illustrated example) with the front-rear direction X (first direction) Two die block units 5 each provided in Y (second direction), the first control valve unit 6 provided in a positional relationship so as to be sandwiched between the two die block units 5, and the left-right direction Two second control valve units 7 extending in Y and a control processing unit 8 (FIG. 11) are provided.

  Next, the material supply unit 3 will be described with reference to FIGS. Here, FIG. 6 is a partially enlarged view of FIG. 5, FIG. 7 is a front view of the main part of the present embodiment, FIG. 8 is an assembled perspective view of the present embodiment, and FIG. It is a figure explaining the state which opened the 1st control valve 62 mentioned later and closed the 2nd control valve 72 mentioned later of the 2nd control valve unit 7. FIG.

  As shown in FIG. 6, the material supply unit 3 includes a material mixing mechanism 31 for mixing materials, a first material mixing tube 32 connected to the material mixing mechanism 31 and extending in the front-rear direction X, and the first material. A first drive mechanism 33 fixed to one end on the rear side of the mixing tube 32, and a first screw rod that can be driven by the first drive mechanism 33 and is rotatably provided in the first material mixing tube 32 34.

  The material supply unit 3 further includes a second drive mechanism 35 provided in front of the first screw rod 34 in the front-rear direction X, and a second end connected to the first material mixing tube 32 and extending in the front-rear direction X. The material mixing tube 36 can be driven by the second drive mechanism 35 and is provided in the second material mixing tube 36 so as to rotate in different directions about its own axis parallel to the front-rear direction X as a rotation axis. A pair of second screw rods 37. Here, the first screw rod 34 and the second screw rod 37 constitute a screw unit.

  Further, a material outlet 321 is formed on the bottom side (see FIG. 7) of the end of the first material mixing tube 32 opposite to the first drive mechanism 33 in the front-rear direction X. Further, the second material mixing tube 36 has a material inlet 361 formed on the upper side of the end portion approaching the end portion of the first material mixing tube 32. The material outlet 321 and the material inlet 361 communicate with each other through a communication pipe. The first material mixing tube 32 and the second material mixing tube 36 constitute a material mixing tube.

  As shown in FIG. 5, the injection unit 4 includes a material storage pipe 41 extending in the front-rear direction X, and a material injection drive mechanism 42 connected to the front side of the material storage pipe 41. As shown in FIGS. 6 and 8, the material storage pipe 41 includes a main pipe part 411 extending in the front-rear direction X and a pair of sub pipe parts 412 connected to the main pipe part 411 and extending in the left-right direction Y. Prepare.

  Further, as shown in FIG. 5, the material injection drive mechanism 42 is movably provided in the main pipe portion 411 of the material storage pipe 41 and in front of the plunger rod 421 in the front-rear direction X. And an injection cylinder 422 that moves by driving the plunger rod 421. Further, as shown in FIG. 5, the injection cylinder 422 is formed to extend in the front-rear direction X.

  The injection unit 4 will be described with reference to FIGS. 5, 9, 10, and 12. Here, FIG. 9 is a front view of the die block unit 5 of the present embodiment, and is a view for explaining a case where an upper mold 54 described later is in a position to be opened with respect to the lower mold 53. FIG. 10 is a front view of the die block unit 5 of the present embodiment, and is a diagram for explaining a case where the upper mold 54 is in a position to be closed with respect to the lower mold 53. FIG. 12 is a partial cross-sectional view of the present embodiment. Molten plastic flows into the material storage tube 41 of the injection unit 4 and pushes the plunger rod 421 of the material injection drive mechanism 42 so as to move forward. It is a figure of a state.

  As shown in FIG. 5, the two die block units 5 are positioned so as to sandwich the first control valve unit 6 from both sides in the left-right direction Y, and each of the sub-blocks of the material storage pipe 41 is shown in FIG. Connected to the piping part 412.

  As shown in FIG. 9, each die block unit 5 includes a base frame 51 provided below the vertical direction H, and an upper frame extending along the vertical direction H and having one end connected to the base frame 51. 52, a lower mold 53 provided on the upper side of the base frame 51 and extending in the front-rear direction X, an upper mold 54 provided above the lower mold 53 and movable in the vertical direction H, An upper mold drive mechanism 55 that is provided on the frame 52 and moves to drive the upper mold 54 and a plurality of lock members 56 that are provided on the lower mold 53 at substantially equal intervals in the front-rear direction X are provided.

  A plurality of lock holes 541 corresponding to the position of the lock member 56 are formed on the bottom side (lower side in the vertical direction H) of the upper mold 54. The upper mold 54 is movable between an open position and a closed position with respect to the lower mold 53. When the upper mold 54 is in the open position, the upper mold 54 is spaced apart from the lower mold 53, and When the mold 54 is in the closed position, the upper mold 54 comes into contact with the lower mold 53.

  The lock member 56 is locked by being locked with the lock hole 541 of the upper mold 54. In this embodiment, the number of die block units 5 is two, but the number of die block units 5 may be changed according to the number to be produced as long as it is two or more.

  As shown in FIGS. 5 and 8, the first control valve unit 6 is provided between the material supply unit 3 and the injection unit 4 in the front-rear direction X. The first control valve unit 6 includes a first connecting pipe 61 (FIG. 8) extending in the front-rear direction X between the second material mixing pipe 36 and the main pipe portion 411 of the material storage pipe 41, and the first connecting valve 61. A first control valve 62 rotatably provided on the outer periphery of the pipe 61 and a first control mechanism 63 fixed above the second drive mechanism 35 are provided. Here, the first connecting pipe 61 defines a first fluid passage 611 that communicates the second material mixing pipe 36 and the main piping portion 411 of the material storage pipe 41.

  As shown in FIG. 8, the first control valve 62 includes a first control valve main body 621 and first flow guide holes 622 provided at the bottom side (lower side in the vertical direction H) of the first control valve main body 621. With. The first control mechanism 63 is pivoted above the second drive mechanism 35 and extends in the front-rear direction X, and can be driven by the first control cylinder 631 and can be driven in the front-rear direction X And a first control pressure rod 632 provided in front of the first control cylinder 631.

  The end of the first control pressure rod 632 opposite to the first control cylinder 631 in the front-rear direction X is connected to the upper end of the first control valve body 621 by a crank handle.

  As shown in FIG. 8, the first control cylinder 631 can drive the first control pressure rod 632 along with the first control valve body 621, and in this way, The size of the opening between the first fluid passages 611 is controlled, and the situation (flow rate) in which the molten plastic flows in the first fluid passage 611 is controlled.

  This will be described with reference to FIGS. 5, 7, and 8. As shown in FIG. 5, each second control valve unit 7 is provided between the injection unit 4 and each die block unit 5 in the left-right direction Y.

  Each second control valve unit 7 includes a second connecting pipe 71 provided between any one of the sub-pipe portions 412 provided in the left-right direction Y and the die block unit 5 adjacent to the sub-pipe portion 412. (FIG. 8), a second control valve 72 rotatably provided on each second connecting pipe 71, and a second control mechanism 73 provided above the material storage pipe 41.

  As shown in FIG. 8, each second connecting pipe 71 defines a second fluid passage 711 that connects the sub-pipe portion 412 of the material storage pipe 41 and the die block unit 5. The second control valve 72 includes a second control valve main body 721 and a second introduction hole 722 provided at an end portion on the bottom side (lower side in the vertical direction H) of the second control valve main body 721. The second control mechanism 73 includes a second control cylinder 731 pivoted on the upper side of the material storage pipe 41 and a second control pressure rod 732 that can be driven by the second control cylinder 731.

  The end of the second control pressure rod 732 opposite to the second control cylinder 731 in the left-right direction Y is connected to the upper end of the second control valve main body 721 by turning the crank handle handle. Since the second control cylinder 731 can drive the second control pressure rod 732 and is associated with the second control valve main body 721, the size of the opening between the second introduction hole 722 and the second fluid passage 711. , Thereby controlling the situation (flow rate) in which the molten plastic flows in the second fluid passage 711.

  FIG. 11 is a block diagram of the present embodiment, in which the control processing unit is electrically connected to 8, the first drive mechanism 33, the second drive mechanism 35, the first control valve unit 6, and the two second control valve units 7. It is a block diagram which shows the state which carried out. As shown in FIG. 11, the control processing unit 8 is connected to the first drive mechanism 33 and the second drive mechanism 35.

  Specifically, as shown in FIG. 11, the control processing unit 8 includes two second control valves 72 included in the second control valve unit 7 and a first control valve 62 included in the first control valve unit 6. The first control valve 62 and the second control valve 72 are controlled to be openable and closable.

  As shown in FIGS. 5, 6, 7, 8, and 12, in actual operation, first, a plastic raw material is first mixed using the material mixing mechanism 31 (FIG. 6), and then the plastic raw material is used. Are fed into the first material mixing tube 32, heated and melted to form liquid molten plastic, mixed by utilizing the rotation of the first screw rod 34, and the molten plastic is sent to the front side in the front-rear direction X.

  Then, the molten plastic is allowed to flow into the second material mixing tube 36 through the material outlet 321 (FIG. 7) and the material inlet 361 on the front side of the first material mixing tube 32, and the second screw rod 37 (FIG. 6) is rotated. At the same time, the molten material is fed forward in the front-rear direction X.

  As shown in FIGS. 7 and 8, when performing the injection operation, first, the first control valve 62 is first opened, and the molten plastic from the second material mixing pipe 36 is passed through the first fluid passage 611 to the first introduction hole 622. (FIG. 8) and enter the material storage pipe 41. As the amount of molten plastic stored in the material storage pipe 41 increases, the plunger rod 421 (FIG. 5) located in the main piping part 411 of the material storage pipe 41 moves forward in the front-rear direction X, that is, the injection cylinder. It is pushed to move to the 422 side.

  When the material storage tube 41 is filled with molten plastic, the control processing unit 8 controls the first drive mechanism 33 and the second drive mechanism 35 to stop the operation (see FIG. 11).

  The following operation will be described with reference to FIG. Here, FIG. 13 is an assembled perspective view for explaining a state in which the first control valve 62 is closed and the second control valve 72 is opened. As shown in FIG. 13, the control processing unit 8 controls the first control mechanism 63 to cause the first control cylinder 631 to drive the first control pressure rod 632 and to swivel together with the first control valve body 621. The first control valve 62 is closed by closing the opening between the first flow guide hole 622 and the first fluid passage 611 (see FIG. 13).

  Next, the operation will be described with reference to FIG. Here, FIG. 14 is a partial cross-sectional view for explaining a state in which the plunger rod 421 of the material injection drive mechanism 42 pushes the molten plastic backward and puts the molten plastic into the die block unit 5. As shown in FIG. 14, when the injection unit 4 tries to perform the operation of injecting the material, the injection cylinder 422 of the material injection drive mechanism 42 drives the plunger rod 421, and the plunger rod 421 enters the main piping portion 411. The molten plastic 411 located is pushed. At this time, one of the second control valves 72 is opened by the control processing unit 8 (see FIG. 11).

  As shown in FIG. 14, when the plunger rod 421 pushes the molten plastic located in the main piping portion 411, the first control valve 62 is closed, so that the molten plastic is moved to the already opened second control valve 72. Then, it flows into the corresponding die block unit 5. In addition, the 1st control valve 62 is rotatably provided in the 1st connection pipe 61 so that the conditions in which a molten plastic flows through the 1st fluid channel | path 611 can be controlled by rotation operation from the outside.

  After the molten plastic is put into the die block unit 5, the second control valve 72 that has already been opened is closed under the control of the control processing unit 8, the other second control valve 72 is opened, and the molten plastic is transferred to the other By injecting into the die block unit 5, the molten plastic can be successively put into the corresponding die block unit 5 at a predetermined time interval.

  Therefore, by taking out the die block unit 5 that has been injection molded first, and then performing the next injection molding and repeating these operations, it is possible to obtain a relatively large number of injection products per unit time. Production efficiency can be improved.

  One embodiment of the present invention is as described above. The advantageous effects of this embodiment will be summarized below.

  First, as compared with a conventional pressure injection molding machine, it is only necessary to use a set of screw rods. In this embodiment, the first screw rod 34 in the first material mixing tube 32 is connected to the second material mixing tube 36. Since it is mounted together with the second screw rod 37, the plastic can be mixed evenly.

  Secondly, as shown in FIGS. 13 and 14, the first control valve 62 uses the one that rotates the first control valve body 621, and the first guide valve 62 is turned by the first guide. By opening or closing the opening between the flow hole 622 and the first fluid passage 611, the first control valve 62 is closed during the material injection operation, and the molten plastic leaks from the material storage pipe 41 and returns to the material supply unit 3. Can be effectively prevented. In addition, the possibility of damage to the internal components is low, and maintenance is easy. This is an excellent effect that cannot be obtained in Patent Document 2.

  Thirdly, a plurality of die block units 5, a first control valve unit 6, and a second control valve unit 7 are designed, and molten plastic can be put in each die block unit 5 in order. According to this, since many products can be produced per unit time, the production efficiency is better than that described in Patent Document 1.

  Fourth, since the upper die 54 of the die block unit 5 can move between the open position and the close position along the vertical direction H with respect to the lower die 53, the die block unit 5 can be compared with the conventional pressure injection molding machine. The proportion of the block unit 5 occupying the space can be reduced.

  In addition, when the upper mold 54 is in the closed position, the lock member 56 and the lock hole 541 of the upper mold 54 are locked and fixed, so that the fixing strength is strong and the pressure resistance against pressure when plastic is put is improved. To do.

  As described above, the molding apparatus of this embodiment can uniformly mix plastics, the internal components are not easily damaged, maintenance is easy, and space can be saved.

  The above description is only an example of the present invention, and does not limit the scope of the utility model registration request. In addition, what is merely a simple addition or change to the scope of the utility model claim and the description of the present invention shall belong to the technical scope of the invention described in the claim of the utility model registration. To do.

3 Material Supply Unit 31 Material Mixing Mechanism 32 First Material Mixing Tube 321 Material Outlet 33 First Drive Mechanism 34 First Screw Rod 35 Second Drive Mechanism 36 Second Material Mixing Tube 361 Material Inlet 37 Second Screw Rod 4 Injection Unit 41 Material storage pipe 411 Main piping section 412 Sub piping section 42 Material injection drive mechanism 421 Plunger rod 422 Injection cylinder 5 Die block unit 51 Base frame 52 Upper frame 53 Lower mold 54 Upper mold 541 Lock hole 55 Upper mold drive mechanism 56 Lock member 6 1st control valve unit 61 1st connecting pipe 611 1st fluid passage 62 1st control valve 621 1st control valve body 622 1st flow hole 63 1st control mechanism 631 1st control cylinder 632 1st control pressure Rod 7 Second control valve unit 71 Second connecting pipe 71 The second fluid passage 72 a second control valve 721 second control valve body 722 second Shiruberyuana 73 second control mechanism 731 second control cylinder 732 the second control pressure rod 8 control processing unit X longitudinal direction Y transverse direction H up and down direction

Claims (11)

A material mixing unit extending in a first direction; an injection unit provided in front of the first direction relative to the material mixing unit; and between the material mixing unit and the injection unit in the first direction. A first control valve unit provided, at least two die block units each provided so as to sandwich the first control valve unit in a second direction intersecting the first direction, and the injection unit, respectively. A pair of second control valve units provided between the die block units and extending in the second direction,
The material supply unit includes:
A first material mixing tube extending in the first direction;
A first screw rod that extends in the first direction and is rotatably accommodated in the first material mixing tube as an axis of rotation parallel to the first direction;
A second material mixing tube formed to extend in the first direction and communicating with the first material mixing tube on the front side in the first direction;
A pair of second screw rods that are both provided in the second material mixing tube and that rotate in different directions about their own axes parallel to the first direction, respectively,
The injection unit includes a material storage pipe extending in the first direction, and a material injection drive mechanism connected to the material storage pipe,
The first control valve unit includes a first connecting pipe that extends in the first direction and that defines a first fluid passage that connects the second material mixing pipe and the material storage pipe, and a molten plastic. A first control valve rotatably provided on the first connecting pipe so that the state of flowing through the first fluid passage can be controlled by an external operation,
Each of the second control valve units is melted with a second connecting pipe extending in the second direction and defining a second fluid passage communicating with the material storage pipe and any one of the die block units. A second control valve rotatably provided on the second connecting pipe so that the state in which the plastic flows in the second fluid passage can be controlled by an external operation;
When the first control valve is open and the second control valve is closed, the molten plastic can flow from the second material mixing tube into the material storage tube, and the molten plastic can flow into the die block. Ca n’t flow into the unit,
When the first control valve is closed and one of the second control valves is open, the material injection driving mechanism causes the die block unit corresponding to the open second control valve to be melted plastic. Is a molding apparatus characterized by being injected. A control processing unit, wherein the control processing unit is electrically connected to the first control valve unit and the second control valve unit, and the first control valve and the second control valve are opened or closed. The molding apparatus according to claim 1, wherein the molding apparatus is controlled as follows. The material supply unit further includes a first drive mechanism for driving the first screw rod and a second drive mechanism for driving the second screw rod, and one end of the first material mixing tube is connected to the first drive rod. The molding apparatus according to claim 1, wherein the molding apparatus is connected to the first drive mechanism. A material outlet located on the bottom side is formed at the other end of the first material mixing tube away from the first drive mechanism, and the second material mixing tube is an end portion close to the first material mixing tube. The molding apparatus according to claim 3, wherein a material inlet located on an upper side is formed, and the material outlet and the material inlet communicate with each other. The first control valve unit further includes a first control mechanism provided above the second drive mechanism,
The first control mechanism includes a first control cylinder pivoted above the second drive mechanism, and a first control pressure rod that can be driven by the first control cylinder,
The first control valve includes a first control valve main body and a first flow guide hole, and the first flow guide hole is opened at a bottom end of the first control valve main body,
The first control pressure rod has one end remote from the first control cylinder connected to the upper end of the first control valve body, and rotates the first control valve body so that the first fluid passage is The molding apparatus according to claim 3, wherein the molding apparatus can be opened or closed so as to be conductive. Each of the second control valve units includes a second control mechanism provided above the material storage pipe,
The second control mechanism includes a second control cylinder pivoted above the material storage pipe, and a second control pressure rod driven by the second control cylinder,
The second control valve includes a second control valve main body and a second flow guide hole, and the second flow guide hole is opened at a bottom end of the second control valve main body,
The second control pressure rod has one end remote from the second control cylinder connected to the upper end of the second control valve main body, and rotates the second control valve main body to conduct the second fluid passage. The molding apparatus according to claim 1, wherein the molding apparatus can be opened or closed. The material storage pipe of the injection unit includes a main piping connected to the first control valve unit, and a pair of sub piping connected respectively between the main piping and the die block unit. The molding apparatus according to claim 1. The material injection drive mechanism of the injection unit includes a plunger rod movably accommodated in a main piping portion of the material storage tube, and an injection cylinder that moves by driving the plunger rod,
When the molten plastic enters the injection unit from the material supply unit, the plunger rod moves away from the first control valve;
When the first control valve is closed and the plunger rod moves in a direction approaching the first control valve, molten plastic is poured from the sub-pipe portion into any of the die block units. Item 8. The molding apparatus according to Item 7. Each die block unit includes a base frame, an upper frame connected to the base frame, a lower mold provided above the base frame, and provided above the lower mold and moved along the vertical direction. A possible upper mold, and an upper mold drive mechanism that is provided on the upper frame and moves the upper mold,
The upper mold can move between an open position and a close position with respect to the lower mold, and when the upper mold is in the open position, the upper mold and the lower mold are spaced apart, The molding apparatus according to claim 1, wherein the upper mold and the lower mold are in contact with each other when the upper mold is in the closed position. Each of the die block units further includes a plurality of lock members provided in the lower mold, and a lock hole provided to correspond to the position of the plurality of lock members on the bottom surface of the upper mold. The molding apparatus according to claim 9, wherein the molding device is provided, and when the upper mold is in the closed position, the lock member and the lock hole of the upper mold are engaged and fixed. In a molding apparatus that supplies a material supplied from a material supply unit having a screw unit that stirs a material to a material mixing tube to at least one of two or more die block units.
A first control valve unit connected to the material mixing tube;
An injection unit capable of storing and injecting material supplied via the first control valve unit;
At least two second control valve units provided in the injection unit;
When the first control valve unit is open and the second control valve unit is closed, material flows from the material mixing tube into the injection unit for storage and into the die block unit. Without
When the first control valve unit is closed and one of the second control valve units is open, the injection unit transfers the material stored in the injection unit to the open second control valve. A molding apparatus comprising: a control unit that controls the first control valve unit, the injection unit, and the second control valve unit so as to inject the die block unit corresponding to the unit.

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