Injection molding machine and molten resin supply system

Abstract

The invention provides an injection molding machine and a molten resin supply system, so that a device for outputting molten resin and the injection molding machine can be directly connected without arranging a connecting pipe with a connector which is deformed for absorbing the movement of a part of the position of the injection molding machine. An injection molding machine (10) is provided with: an injection device (30) that injects inputted molten resin into a mold (41); a mold clamping device (40) that supports the mold (41) and performs mold clamping of the mold (41); a rack (50) which is provided on the floor surface (200) and supports the injection device (30) and the mold clamping device (40); and a sliding member (11) and a sliding member (12) capable of sliding the gantry (50) independently of the injection device (30) and the ground (200) in the direction in which the injection unit (32) of the injection device (30) protrudes.

Description

[0001] This application claims the benefit of priority based on Japanese Patent Application No. 2023-197485 filed on November 21, 2023. The entire contents of the Japanese Patent Application are incorporated herein by reference. Technical Field

[0002] The invention relates to an injection molding machine and a molten resin supply system. Background Art

[0003] In order to directly input the molten resin output from a decontamination machine that uses a mechanical recovery method to decontaminate the contaminants contained in the resin to be recovered into an injection molding machine, the decontamination machine and the injection molding machine are sometimes connected by piping. In this case, in order to absorb the positional movement caused by the removal operation of the injection device of the injection molding machine, a connecting pipe including a sleeve-type telescopic pipe connector serving as a connector of the piping is sometimes provided (for example, Patent Document 1).

[0004] Patent Document 1: International Publication No. 2022 / 056618

[0005] If a connecting tube including a sleeve-type telescopic tube connector is provided, the sleeve slides in response to the movement of the position of the injection device, and thus moves back and forth between the inside and outside of the tube, so that sometimes the molten resin passing through the inside of the tube is exposed to the outside of the tube in a state of being attached to the surface of the sleeve. At this time, if the sleeve slides, the exposed molten resin rubs against it and carbonizes, and thus may be mixed into the molten resin as a solid foreign matter. In addition, as connectors other than the sleeve-type telescopic tube connector, there are also rotary pipe joints or flexible hoses, which can also be deformed in response to the movement of the position of the heating cylinder, but from a structural point of view, sometimes the molten resin passing through the inside is retained. Moreover, these connectors are required to have heat resistance, pressure resistance, etc. for allowing the molten resin to pass through, but there are limited connectors that meet all these requirements. In view of this situation, it is required to realize a method that can directly connect a device for outputting molten resin and an injection molding machine without configuring a connecting tube with a connector that is deformed to absorb the movement of the position of the injection device. Summary of the invention

[0006] An object of the present invention is to enable a device for discharging molten resin and an injection molding machine to be directly connected without providing a connection pipe having a connector that is deformed to absorb positional movement of a part of the injection molding machine.

[0007] The injection molding machine of the present invention, which is completed in view of this purpose, is characterized in that it comprises: an injection device, which injects the input molten resin into the mold; a clamping device, which supports the mold and performs clamping of the mold; a stand, which is set on the ground and supports the injection device and the clamping device; and a plurality of movable components, which can enable the stand to move independently along the protruding direction of the injection part of the injection device relative to the injection device and the ground.

[0008] Here, when the stand supporting the mold clamping device moves independently in the protruding direction relative to the injection device and the floor, the injection device and the mold may be separated from or approached to each other.

[0009] Furthermore, it may be as follows: the platform can be independently moved along the protruding direction relative to the injection device via a first movable component among the plurality of movable components, and can be independently moved along the protruding direction relative to the ground via a second movable component among the plurality of movable components.

[0010] Furthermore, one or more driving units that move the stage in the protruding direction may be provided.

[0011] Furthermore, a synchronization mechanism may be provided for synchronizing an operation of independently moving the injection device in the protruding direction relative to the stage with an operation of independently moving the stage in the protruding direction relative to the ground.

[0012] Furthermore, a first locking member for locking the stage from moving in the protruding direction may be provided.

[0013] Furthermore, a second locking member for locking the injection device from moving in the protruding direction may be provided.

[0014] Furthermore, from another point of view, the injection molding machine of the present invention is characterized in that it comprises: an injection device for injecting the input molten resin into the mold; a clamping device for supporting the mold and clamping the mold; a stand for supporting the injection device and the clamping device; and a movable member for enabling the clamping device to move independently along the protruding direction of the injection portion of the injection device relative to the injection device and the stand.

[0015] Here, if the mold clamping device moves independently in the protruding direction relative to the injection device and the stage, the injection device and the mold may be separated from or approached.

[0016] Furthermore, a driving unit that moves the mold clamping device in the protruding direction may be further provided.

[0017] Furthermore, a locking member for locking the mold clamping device from moving in the protruding direction may be further provided.

[0018] Furthermore, from another point of view, the molten resin supply system of the present invention is characterized in that it includes: an output device having an output port for outputting molten resin and the position of the output port is fixed; and an injection molding machine, which uses the output molten resin to mold a molded product, and the injection molding machine has: an injection device having an input port fixed in position relative to the output port, and injecting the molten resin input to the input port into the mold; a clamping device that supports the mold and clamps the mold; a stand that is set on the ground and supports the injection device and the clamping device; and a plurality of movable components that enable the stand to move independently along the protruding direction of the injection portion of the injection device relative to the injection device and the ground.

[0019] Furthermore, from another point of view, the molten resin supply system of the present invention is characterized in that it includes: an output device having an output port for outputting molten resin and the position of the output port is fixed; and an injection molding machine that uses the output molten resin to mold a molded product, and the injection molding machine has: an injection device having an input port whose position is fixed relative to the output port, and injecting the molten resin input to the input port into the mold; a clamping device that supports the mold and performs clamping of the mold; a stand that supports the injection device and the clamping device; and a movable member that enables the clamping device to move independently along the protruding direction of the injection portion of the injection device relative to the injection device and the stand.

[0020] Effects of the Invention

[0021] According to the present invention, it is possible to directly connect the device for delivering molten resin and the injection molding machine without providing a connecting pipe having a connector that is deformed to absorb the positional movement of a part of the injection molding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a diagram showing an example of the overall configuration of the molten resin supply system according to the first embodiment.

[0023] Figure 2 This is a diagram showing an example of a configuration in which a synchronization mechanism is provided in an injection molding machine.

[0024] Figure 3 This is a diagram showing an example of the structure of a linear guide rail which is a specific example of a movable member constituting an injection molding machine.

[0025] Figure 4It is a diagram showing an overview of the removal operation performed by a conventional injection device.

[0026] Figure 5 It is a diagram showing a specific example of a connector for connecting a tube which is deformed according to the ejection operation of a conventional injection device.

[0027] Figure 6 It is a diagram showing an example of the overall configuration of the molten resin supply system according to the second embodiment.

[0028] In the figure: 1, 2-molten resin supply system, 10, 80-injection molding machine, 11, 12, 13-sliding component, 20-output device, 21-output port, 30-injection device, 31-input port, 32-injection part, 40, 60-mold clamping device, 41, 61-mold, 50, 70-stand, 51, 52-driving part, 53, 54-locking component, 55-synchronizing mechanism, 100-connecting pipe, 200-ground. DETAILED DESCRIPTION

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0030] <First embodiment>

[0031] (Structure of Molten Resin Supply System 1)

[0032] Figure 1 It is a diagram showing an example of the overall configuration of the molten resin supply system 1 according to the first embodiment.

[0033] Figure 1 The molten resin supply system 1 shown is a system including an injection molding machine 10 that performs injection molding using molten resin and a delivery device 20 that delivers the molten resin to the injection molding machine 10 .

[0034] 〔Injection molding machine 10〕

[0035] The injection molding machine 10 is a molding machine for manufacturing a molded product made of molten resin. The injection molding machine 10 is connected to the output device 20 via a connecting pipe 100. The connecting pipe 100 is a metal pipe with a high rigidity and a straight shape, and has heat resistance and pressure resistance for passing the molten resin. In addition, the connecting pipe 100 has a smooth inner surface and a non-retention structure that does not easily retain the molten resin.

[0036] The injection molding machine 10 includes an injection device 30, a mold clamping device 40, and a stand 50. The injection device 30 has an input port 31 for inputting molten resin and an injection portion 32 for injecting the molten resin input into the input port 31. The input port 31 is provided on the upper side in the vertical direction of the injection molding machine 10, and is connected to the lower side in the vertical direction of the connecting pipe 100. If the molten resin output from the output device 20 is input into the input port 31 via the connecting pipe 100, the injection device 30 heats, mixes, and measures the input molten resin, and injects the molten resin from the injection portion 32 into the interior of the mold 41. The injection device 30 is supported on the stand 50 via a sliding component 11 as a first movable member. The sliding component 11 is composed of, for example, one or more linear guide rails. In addition, the specific structure of the sliding component 11 will be described later.

[0037] In the embodiment of the present invention, as one embodiment of the movable member, the stand 50 (see Figure 1 ), the mold clamping device 60 according to the second embodiment described later (reference Figure 6 ) etc. That is, the movable member can be any member that can move the stage 50 etc., and therefore, it can be a member that can move the stage 50 etc. by sliding as in the embodiment of the present invention, for example, it can also be a member that can move the stage 50 etc. by combining gears, etc.

[0038] The mold clamping device 40 is a device that supports the mold 41 and performs mold clamping of the mold 41 into which the molten resin is injected. Figure 1 The mold is opened and closed in the left and right direction (i.e., the horizontal direction and the direction in which the injection unit 32 of the injection device 30 protrudes toward the mold 41). Figure 1 The left and right direction of Figure 1 The left side of the mold clamping device 40 is referred to as the "first side", and the right side is referred to as the "second side". The mold clamping device 40 is supported by a stand 50 disposed at the lower side in the vertical direction. In the first embodiment, the mold clamping device 40 and the stand 50 are fixed together.

[0039] The stand 50 is a member that supports the injection device 30 and the mold clamping device 40 from the lower side in the vertical direction. Specifically, the stand 50 supports the injection device 30 from the lower side in the vertical direction via the sliding member 11, and is fixed to the mold clamping device 40 in a state of supporting the mold clamping device 40 from the lower side in the vertical direction of the mold clamping device 40. The stand 50 is installed on the floor 200 via the sliding member 12 as the second movable member. The sliding member 12 is composed of, for example, one or more linear slide rails. In addition, the specific structure of the sliding member 12 will be described later.

[0040] [Output device 20]

[0041] The output device 20 is a device for outputting molten resin. The output device 20 removes pollutants contained in the inside of the resin such as a polyester bottle, which is a recycling object, by a mechanical recycling method (physical recycling method) or a chemical recycling method (chemical recycling method), and outputs it as molten resin. The output device 20 has an output port 21 for outputting molten resin. The output port 21 is connected to the upper side of the connecting pipe 100 in the vertical direction, and the position is fixed. The molten resin output from the output port 21 is input into the injection molding machine 10 via the connecting pipe 100.

[0042] "Mechanical recycling" refers to a series of treatments in which the recycled used polyester bottles and other resins are screened, crushed, and washed to remove dirt and foreign matter on the surface, and then the pollutants remaining in the resin melted by exposure to high temperature are diffused into the vacuum in the output device 20 to remove the pollutants. In addition, "chemical recycling" refers to a series of treatments in which the recycled used polyester bottles and other resins are screened, chemically decomposed, and repolymerized to remove the pollutants.

[0043] (Exclusion Action)

[0044] Carbide accumulation occurs inside the injection device 30 of the injection molding machine 10. Carbide accumulation is a phenomenon in which the molten resin input into the injection device 30 is retained, burnt, carbonized, and accumulated on the screw inside. Carbide accumulation causes the carbide accumulated on the screw to peel off and cause poor molding. Therefore, an action of eliminating carbide accumulation by squeezing out the molten resin from the injection part 32 of the injection device 30 and discharging it to the outside is performed periodically (hereinafter referred to as "elimination action").

[0045] The removal action includes the action of separating the injection device 30 from the mold 41 in the protruding direction and the action of extruding the molten resin from the injection portion 32 of the injection device 30 and discharging it to the outside. Figure 1 As shown in the figure, in a state where the position of the injection device 30 in the protruding direction is fixed, the positions of the mold clamping device 40 and the stand 50 in the protruding direction are slid toward the first side from the position during operation indicated by the solid line to the position during the ejection operation indicated by the single-dot chain line. In the first embodiment, the mold clamping device 40 is fixed to the stand 50, so if the stand 50 slides toward the first side in the protruding direction, the mold clamping device 40 also moves toward the first side in the protruding direction together with the stand 50. As a result, a space is formed between the injection device 30 and the mold 41, and thus, the molten resin is extruded from the injection portion 32 of the injection device 30 using the space and discharged to the outside.

[0046] The sliding member 11 is a member that enables sliding between the injection device 30 and the stand 50. Furthermore, the sliding member 12 is a member that enables sliding between the stand 50 and the floor 200. Furthermore, the injection device 30 is connected to the delivery port 21 of the delivery device 20 via the connection pipe 100 having high rigidity, and the position of the delivery port 21 is fixed. Therefore, in the injection molding machine 10, the stand 50 can be slid without sliding the injection device 30. That is, the stand 50 can slide in the protruding direction independently of the injection device 30 and the floor 200.

[0047] In addition, the stand 50 may become unstable in the protruding direction due to sliding in the protruding direction independently of the injection device 30 and the floor 200. In other words, the stand 50 may move in the protruding direction due to an unexpected force applied to the stand 50. In this case, a locking member 53 as a first locking member for locking the stand 50 in the protruding direction may be provided. The locking member 53 is not particularly limited as long as it is a member capable of locking the stand 50 in the protruding direction, and may be, for example, a latch mechanism for fixing the positional relationship between the stand 50 and the floor 200.

[0048] Furthermore, as described above, the injection device 30 is supported by the slide member 11 so as to be slidable relative to the stand 50. However, depending on the form of the connection tube 100 (for example, low rigidity, etc.), the injection device 30 may become unstable in the protruding direction, for example, the injection device 30 may slide in conjunction with the sliding of the stand 50. In this case, a locking member 54 as a second locking member may be provided to lock the injection device 30 in sliding in conjunction with the sliding of the stand 50.

[0049] The locking member 54 is not particularly limited as long as it is a member that can lock the injection device 30 while sliding in the protruding direction. For example, a highly rigid metal structure may be used to fix the positional relationship between the injection device 30 and the ground 200. Furthermore, the connection pipe 100 whose position is fixed by being connected to the output port 21 of the output device 20 and the input port 31 of the injection device 30 may also function as the second locking member.

[0050] As the removal operation, when the stage 50 is slid in the protruding direction, it can be slid by manual operation of the staff, but a driving unit for driving the sliding member 11 or the sliding member 12 can also be provided. The driving unit is composed of, for example, a motor. In the case where a driving unit is provided to slide the stage 50 in the protruding direction, for example, Figure 1As shown, as the first driving unit, a driving unit 51 for moving the sliding member 11 can be provided, and as the second driving unit, a driving unit 52 for moving the sliding member 12 can be provided. The number of driving units is not particularly limited, for example, only the driving unit 51 can be provided, or only the driving unit 52 can be provided. In addition, both the driving unit 51 and the driving unit 52 can be provided, and three or more driving units (not shown) can be provided.

[0051] (Variation Example)

[0052] Figure 2 This is a diagram showing an example of a configuration in which a synchronization mechanism 55 is provided in the injection molding machine 10 .

[0053] As described above, when the injection device 30 slides in conjunction with the sliding of the stand 50 and the injection device 30 becomes unstable in the protruding direction, a locking member 54 as a second locking member for locking the injection device 30 sliding in conjunction with the sliding of the stand 50 may be provided (see Figure 1 ). Thus, even if the stand 50 slides in the protruding direction, the injection device 30 is prevented from sliding in conjunction with the slide of the stand 50. Furthermore, even if the synchronization mechanism 55 is provided in the injection molding machine 10, the injection device 30 is prevented from sliding in conjunction with the slide of the stand 50.

[0054] The synchronization mechanism 55 is a mechanism that is linked to the driving of the driving unit 51 that operates the sliding member 11, and synchronizes the operation of the injection device 30 sliding independently in the protruding direction relative to the stand 50 with the operation of the stand 50 sliding independently in the protruding direction relative to the ground 200. Specifically, the synchronization mechanism 55 uses, for example, one or more conveyor belts or chains to coordinate the operation of the injection device 30 sliding in the protruding direction with the operation of the stand 50 sliding in the protruding direction, thereby synchronizing them.

[0055] Figure 3 1 is a diagram showing an example of the structure of a linear slide rail which is a specific example of the slide member 11 constituting the injection molding machine 10 .

[0056] The linear slide rail of a specific example of the sliding member 11 is configured to include a linear rail portion 111, a block portion 112 that slides along the rail portion 111, and a bearing portion 113 that enables the block portion 112 to slide smoothly. Figure 3 The linear guide rail shown is configured as a sliding component 11 Figure 1In the case of the injection device 30 and the stand 50 being provided between the injection device 30 and the stand 50, one or more linear guide rails are provided at the position where the injection device 30 slides on the upper surface 56 in the vertical direction of the stand 50. Specifically, the linear guide rails are provided so that the direction of the guide rail portion 111 is parallel to the protruding direction, and the injection device 30 is provided so that the block portion 112 supports the injection device 30 from the lower side in the vertical direction.

[0057] At this time, the length of the rail portion 111 in the protruding direction is determined in consideration of the size of the injection device 30, the length of the stand 50 sliding in the protruding direction, etc. Furthermore, as long as the block portion 112 sliding along the rail portion 111 can stably support the injection device 30, the length of the block portion 112 in the protruding direction and the number of the block portions 112 to be arranged are not particularly limited. For example, the length of the block portion 112 in the protruding direction and the number of the block portions 112 to be arranged are determined based on the size of the injection device 30, etc.

[0058] And, it can also be Figure 3 The linear guide rail shown as a specific example of the sliding member 11 is set as Figure 1 A specific example of the sliding member 12. At this time, Figure 3 The linear guide rail shown is provided as a sliding member 12. Figure 1 Specifically, one or more linear slide rails are provided at a position where the stage 50 slides on the floor 200 so that the direction of the guide rail portion 111 becomes parallel to the protruding direction. Furthermore, the stage 50 is provided so that the one or more block portions 112 support the stage 50 from the lower side in the vertical direction.

[0059] The length of the rail portion 111 in the protruding direction is determined in consideration of the length of the stand 50 in the protruding direction, the length of the stand 50 sliding in the protruding direction, etc. Furthermore, as long as the block portion 112 sliding along the rail portion 111 can stably support the stand 50, the length of the block portion 112 in the protruding direction and the number of the block portions 112 arranged on the rail portion 111 are not particularly limited. For example, the length of the block portion 112 in the protruding direction and the number of the block portions 112 arranged on the rail portion 111 are determined based on the length of the stand 50 in the protruding direction, etc.

[0060] In addition, Figure 1 In the injection molding machine 10, in order to ensure the stability or horizontality of the injection molding machine 10, a support foot such as a leveling shim or an adjustment foot is sometimes provided. In this case, for example, the length of the linear guide rail in the protruding direction as the sliding member 12 and the number of the linear guide rails are determined according to the number of the support feet provided, and the linear guide rails are provided between each support foot and the ground 200.

[0061] Figure 3The structure of the linear guide rail shown is only an example, and all existing linear guide rails can be used as Figure 1 The sliding part 11 and the sliding part 12. For example, Figure 3 The upper surface of the block 112 in the vertical direction is provided with a structure (eg, one or more screw holes, etc.) for joining the injection device 30, the stand 50 and the block 112. Figure 1 The sliding member 11 and the sliding member 12 are not limited to linear slide rails, and may be any member as long as it can make the stage 50 slide in the protruding direction relative to the injection device 30 and the ground 200.

[0062] <Previous elimination actions>

[0063] Figure 4 It is a diagram showing an overview of the removal operation performed by a conventional injection device.

[0064] Figure 5 It is a diagram showing a specific example of a connector for connecting a tube which is deformed according to the ejection operation of a conventional injection device.

[0065] exist Figure 4 , there are shown a delivery device having a delivery port for delivering molten resin, an injection molding machine for molding a molded product using the delivered molten resin, and a connecting pipe composed of a pipe connecting the delivery device and the injection molding machine.

[0066] exist Figure 4 The output port of the output device is fixed in position. The injection molding machine includes an injection device, a mold clamping device, and a stand. The injection device has an input port for inputting molten resin, and injects the input molten resin from an injection portion into the mold. The mold clamping device supports the mold and performs mold clamping of the mold injected with the molten resin. The stand supports the injection device and the mold clamping device from the lower side in the up-down direction, and is fixed to the ground. In addition, Figure 4 In the above Figure 1 Similarly, the protruding direction is a horizontal direction, and is a direction in which the injection portion of the injection device protrudes toward the mold.

[0067] Figure 4 The frame supports the injection device from the lower side in the vertical direction via a sliding member. The sliding member is actuated by a driving unit. Therefore, the injection device can slide independently in the protruding direction relative to the frame fixed to the ground. As a periodic removal action, the injection device slides independently in the protruding direction relative to the frame. The removal action includes an action of separating the injection device from the mold in the protruding direction and an action of squeezing out the molten resin from the injection portion of the injection device and discharging it to the outside. Specifically, as Figure 4As shown in the figure, in a state where the positions of the mold clamping device and the stand in the protruding direction are fixed, the position of the injection device in the protruding direction is slid toward the second side from the position during operation indicated by the solid line to the position during the ejection operation indicated by the single-dot chain line. As a result, a space is formed between the injection device and the mold, and the molten resin is squeezed out from the injection portion of the injection device using the space and discharged to the outside.

[0068] At this time, the connecting pipe connecting the output port of the output device and the input port of the injection device through the pipe deforms a part of the pipe according to the ejection action of the injection device, thereby absorbing the position movement of the injection device accompanying the ejection action. Thus, even in a state where the position of the output port of the output device is fixed, it is possible to cope with the position movement of the input port caused by the ejection action of the injection device.

[0069] exist Figure 5 In the figure, as specific examples of connectors for connecting tubes that are deformed according to the ejection action of the conventional injection device, a plurality of swivel tube joints, a sleeve-type telescopic tube connector, and a flexible hose are shown. The swivel tube joint is a connector that connects a plurality of tubes rotatably. The sleeve-type telescopic tube connector is a connector that can connect two tubes with the same central axis direction so that they can be telescoped along the central axis direction by sliding the sleeve. The flexible hose is a flexible hose-shaped connector that connects two tubes.

[0070] Even if the position of the injection port of the injection device moves in the protruding direction due to the ejection action of the injection device, the plurality of swivel joints can absorb the movement within the rotatable range of each of the plurality of swivel joints. However, from a structural point of view, a small gap is formed inside the swivel joint, so a part of the molten resin passing through the swivel joint may enter the gap. In this case, the molten resin may be retained, and the retained molten resin may solidify and be mixed into the molten resin as solid foreign matter.

[0071] Even if the position of the injection device's input port in the protruding direction moves due to the ejection action of the injection device, the sleeve-type telescopic tube connector can absorb the movement within the range of the sleeve's reciprocating sliding distance. However, from a structural point of view, the sleeve of the sleeve-type telescopic tube connector moves back and forth between the inside and outside of the tube, so the molten resin exposed outside the tube rubs against it and carbonizes, which may be mixed into the molten resin as solid foreign matter. In particular, the longer the reciprocating sliding distance of the sleeve, the larger the area of ​​the portion exposed outside the tube, and the more likely it is that solid foreign matter will be formed.

[0072] Even if the position of the injection port of the injection device moves in the protruding direction due to the ejection action of the injection device, the flexible hose can absorb the movement within the bendable range of the flexible hose. However, from a structural point of view, the flexible hose has a plurality of corrugated gaps formed inside, so a part of the molten resin passing through the inside of the flexible hose may enter the gaps. In this case, the molten resin may be retained, and the retained molten resin may solidify and be mixed into the molten resin as solid foreign matter.

[0073] In this way, the swivel pipe joint, the sleeve-type telescopic pipe connector, and the flexible hose, which are connectors for connecting the pipes, can be deformed in accordance with the positional movement in the protruding direction of the input port of the injection device. However, from a structural point of view, any of the connectors has a problem in that the molten resin is retained inside, and heat resistance and pressure resistance are also required for the molten resin to pass through. Therefore, Figure 1 The injection molding machine 10 shown is preferably configured to be directly connectable to the output device 20 , without providing a connection pipe having a connector that is deformed to absorb the positional movement of the injection device 30 .

[0074] In summary, the injection molding machine 10 according to the first embodiment of the present invention only needs to have the following configuration, and various embodiments can be adopted.

[0075] That is, an injection molding machine 10 is characterized in that it comprises: an injection device 30, which injects the input molten resin into a mold 41; a clamping device 40, which supports the mold 41 and clamps the mold 41; a stand 50, which is set on the ground 200 and supports the injection device 30 and the clamping device 40; and a plurality of movable components (for example, a sliding component 11 and a sliding component 12), which can enable the stand 50 to move independently along the protruding direction of the injection portion 32 of the injection device 30 relative to the injection device 30 and the ground 200.

[0076] Thus, the stand 50 installed on the floor 200 can be moved independently of the injection device 30 and the floor 200 in the protruding direction of the injection portion 32 of the injection device 30, so that, for example, the injection device 30 and the mold 41 can be moved apart or brought closer as an ejection operation. As a result, the output device 20 and the injection molding machine 10 can be directly connected without providing a connecting pipe that is deformed to absorb the movement of the position of the injection device 30, which is a part of the injection molding machine 10.

[0077] Here, if the stand 50 supporting the mold clamping device 40 moves independently in the protruding direction relative to the injection device 30 and the floor surface 200 , the injection device 30 and the mold 41 may be separated from or approached.

[0078] Thus, the stand 50 installed on the floor 200 can be moved in the protruding direction independently of the injection device 30 and the floor 200 , so that, for example, the injection device 30 and the mold 41 can be moved apart or closer as an ejection operation.

[0079] Furthermore, it may be as follows: the stand 50 can be independently moved in the protruding direction relative to the injection device 30 via a sliding component 11 as the first movable component among the multiple movable components, and can be independently moved in the protruding direction relative to the ground 200 via a sliding component 12 as the second movable component among the multiple movable components.

[0080] Thus, the stand 50 can be independently moved in the protruding direction relative to the injection device 30 via the slide member 11 and can be independently moved in the protruding direction relative to the floor 200 via the slide member 12. Therefore, the stand 50 can be independently moved in the protruding direction while the position of the injection device is fixed.

[0081] Furthermore, one or more driving units (for example, the driving unit 51 and the driving unit 52 ) that move the stage 50 in the protruding direction may be provided.

[0082] Thus, one or a plurality of driving units move the stage 50 in the protruding direction, so that, for example, the removal operation can be automatically performed.

[0083] Furthermore, a synchronization mechanism 55 may be provided to synchronize the operation of the injection device 30 independently moving in the protruding direction relative to the stand 50 and the operation of the stand 50 independently moving in the protruding direction relative to the ground 200 .

[0084] Thus, the synchronization mechanism 55 synchronizes the movement of the carriage 50 independently in the protruding direction relative to the injection device 30 and the movement of the carriage 50 independently in the protruding direction relative to the floor 200. As a result, for example, the injection device 30 can be prevented from moving in conjunction with the movement of the carriage 50 without providing the locking member 54 as the second locking member.

[0085] Furthermore, a locking member 53 as a first locking member for locking the stage 50 from moving in the protruding direction may be provided.

[0086] Thus, the locking member 53 as the first locking member locks the stage 50 from moving in the protruding direction, and thus it is possible to suppress the stage 50 from becoming unstable in the protruding direction.

[0087] Furthermore, a locking member 54 as a second locking member for locking the injection device 30 from moving in the protruding direction may be provided.

[0088] Thus, the locking member 54 as the second locking member locks the injection device 30 from moving in the protruding direction, and thus the injection device 30 can be prevented from moving in conjunction with the movement of the carriage 50 .

[0089] Furthermore, the molten resin supply system 1 according to the first embodiment of the present invention may be configured as follows, and various embodiments may be adopted.

[0090] That is, a molten resin supply system 1 is characterized in that it includes: an output device 20, which has an output port 21 for outputting molten resin and the position of the output port 21 is fixed; and an injection molding machine 10, which uses the output molten resin to mold a molded product, and the injection molding machine 10 has: an injection device 30, which has an input port 31 whose position is fixed relative to the output port 21, and injects the molten resin input to the input port 31 into a mold 41; a clamping device 40, which supports the mold 41 and clamps the mold 41; a stand 50, which is set on the ground 200 and supports the injection device 30 and the clamping device 40; and a plurality of movable components (for example, a sliding component 11 and a sliding component 12), which can enable the stand 50 to move independently along the protruding direction of the injection portion 32 of the injection device 30 relative to the injection device 30 and the ground 200.

[0091] Thus, the stand 50 installed on the floor 200 can be moved independently of the injection device 30 and the floor 200 in the protruding direction of the injection portion 32 of the injection device 30, so that, for example, the injection device 30 and the mold 41 can be moved apart or brought closer as an ejection operation. As a result, the output device 20 and the injection molding machine 10 can be directly connected without providing a connecting pipe that is deformed to absorb the movement of the position of the injection device 30, which is a part of the injection molding machine 10.

[0092] <Second embodiment>

[0093] (Structure of Molten Resin Supply System 2)

[0094] Figure 6 It is a diagram showing an example of the overall configuration of the molten resin supply system 2 according to the second embodiment.

[0095] Figure 6 The molten resin supply system 2 shown is a system including an injection molding machine 80 for performing injection molding using molten resin and a delivery device 20 for delivering the molten resin to the injection molding machine 80. The delivery device 20 is the same as that of the first embodiment described above, and thus description thereof is omitted.

[0096] 〔Injection molding machine 80〕

[0097] With the above Figure 1The injection molding machine 80 is a molding machine for manufacturing a molded product using molten resin as a material, and is connected to the output device 20 at the lower side in the vertical direction. The injection molding machine 80 is connected to the output device 20 via a connecting pipe 100.

[0098] The injection molding machine 80 includes an injection device 30, a mold clamping device 60, and a stand 70. The injection device 30 is basically the same structure as that of the first embodiment. That is, when the molten resin output from the output device 20 is input to the input port 31 via the connecting pipe 100, the injection device 30 heats, kneads, and measures the input molten resin, and injects the molten resin from the injection portion 32 into the interior of the mold 61 described later. However, unlike the first embodiment, the injection device 30 is fixed to the stand 70 that supports itself.

[0099] The mold clamping device 60 is a device that supports the mold 61 and clamps the mold 61 injected with molten resin. Figure 6 The mold is opened and closed in the left and right direction (i.e., the horizontal direction and the direction in which the injection unit 32 of the injection device 30 protrudes toward the mold 61). Figure 6 The left-right direction is referred to as the "protruding direction". The mold clamping device 60 is supported slidably in the protruding direction via the sliding member 13 on the stand 70 disposed at the lower side in the up-down direction. That is, the first embodiment is a structure in which the mold clamping device 40 and the stand 50 are fixed together, but the second embodiment is a structure in which the mold clamping device 60 can slide independently in the protruding direction relative to the stand 70.

[0100] The stand 70 is a member that supports the injection device 30 and the mold clamping device 60 from the lower side in the vertical direction. Specifically, the stand 70 supports the injection device 30 in a fixed state at the lower side in the vertical direction of the injection device 30, and supports the mold clamping device 60 from the lower side in the vertical direction via the sliding member 13. The sliding member 13 supports the mold clamping device 60 so that it can slide independently in the protruding direction relative to the stand 70. Figure 1 Similar to the sliding members 11 and 12 , the sliding member 13 is composed of, for example, one or more linear guide rails.

[0101] (Exclusion Action)

[0102] The injection device 30 of the injection molding machine 80 periodically performs a discharge operation.

[0103] The removal action includes an action of separating the injection device 30 from the mold 61 in the protruding direction and an action of extruding the molten resin from the injection portion 32 of the injection device 30 and discharging it to the outside. Figure 6As shown in the figure, the position of the mold clamping device 60 in the protruding direction is moved from the position during operation indicated by the solid line to the first side to the position during the ejection operation indicated by the single-dot chain line, while the positions of the injection device 30 and the stand 70 in the protruding direction are fixed. That is, unlike the first embodiment, in the second embodiment, the mold clamping device 60 is not fixed to the stand 70, so the stand 70 is fixed to slide the mold clamping device 60 to the first side in the protruding direction. As a result, a space is formed between the injection device 30 and the mold 61, so the molten resin is extruded from the injection portion 32 of the injection device 30 using the space and discharged to the outside.

[0104] The mold clamping device 60 can slide independently in the protruding direction relative to the injection device 30 and the stand 70, so that the mold clamping device 60 may become unstable in the protruding direction. In other words, an unexpected force may be applied to the mold clamping device 60, causing the mold clamping device 60 to move in the protruding direction. In this case, a locking member 72 may be provided to stop the mold clamping device 60 from sliding in the protruding direction. The locking member 72 is not particularly limited as long as it is a member that can stop the mold clamping device 60 from sliding in the protruding direction. For example, it may be a latch mechanism that fixes the positional relationship between the mold clamping device 60 and the stand 70.

[0105] When the mold clamping device 60 is slid in the protruding direction, it may be slid by manual operation of a worker, but a driving unit 71 for driving the sliding member 13 may be provided. The driving unit 71 is constituted by, for example, a motor or the like.

[0106] In summary, the injection molding machine 80 according to the second embodiment of the present invention only needs to have the following structure, and various embodiments can be adopted.

[0107] That is, an injection molding machine 80 is characterized in that it comprises: an injection device 30, which injects the input molten resin into the mold 61; a clamping device 60, which supports the mold 61 and clamps the mold 61; a stand 70, which supports the injection device 30 and the clamping device 60; and a movable component (for example, a sliding component 13), which can enable the clamping device 60 to move independently along the protruding direction of the injection part 32 of the injection device 30 relative to the injection device 30 and the stand 70.

[0108] Thus, the mold clamping device 60 supporting the mold 61 can be moved independently of the injection device 30 and the stage 70 in the protruding direction of the injection portion 32 of the injection device 30, so that, for example, the injection device 30 and the mold 61 can be moved apart or closer as an ejection operation. As a result, the output device 20 and the injection molding machine 80 can be directly connected without providing a connecting pipe that is deformed to absorb the movement of the position of the injection device 30, which is a part of the injection molding machine 80.

[0109] Here, if the mold clamping device 60 moves in the protruding direction independently of the injection device 30 and the stage 70 , the injection device 30 and the mold 61 may be separated from or approached.

[0110] Thus, the mold clamping device 60 can be moved in the protruding direction independently of the injection device 30 and the stage 70 , so that, for example, the injection device 30 and the mold 61 can be moved apart or closer as an ejection operation.

[0111] Furthermore, a driving unit 71 that moves the mold clamping device 60 in the protruding direction independently of the injection device 30 and the stage 70 may be provided.

[0112] Thus, the driving unit 71 moves the mold clamping device 60 in the protruding direction, so that, for example, the ejection operation can be automatically performed.

[0113] Furthermore, a locking member 72 for locking the mold clamping device 60 from moving in the protruding direction may be provided.

[0114] Thus, the locking member 72 locks the mold clamping device 60 from moving in the protruding direction, and thus it is possible to suppress the mold clamping device 60 from becoming unstable in the protruding direction.

[0115] Furthermore, the molten resin supply system 2 according to the second embodiment of the present invention may be configured as follows, and various embodiments may be adopted.

[0116] That is, a molten resin supply system 2 is characterized in that it includes: an output device 20, having an output port 21 for outputting molten resin and the position of the output port 21 is fixed; and an injection molding machine 80, which uses the output molten resin to mold a molded product, and the injection molding machine 80 has: an injection device 30, having an input port 31 whose position is fixed relative to the output port 21, and injecting the molten resin input to the input port 31 into a mold 61; a clamping device 60, which supports the mold 61 and clamps the mold 61; a stand 70, which supports the injection device 30 and the clamping device 60; and a sliding component 13, which can enable the clamping device 60 to move independently along the protruding direction of the injection portion 32 of the injection device 30 relative to the injection device 30 and the stand 70.

[0117] Thus, the mold clamping device 60 supporting the mold 61 can be moved independently of the injection device 30 and the stage 70 in the protruding direction of the injection portion 32 of the injection device 30, so that, for example, the injection device 30 and the mold 61 can be moved apart or closer as an ejection operation. As a result, the output device 20 and the injection molding machine 80 can be directly connected without providing a connecting pipe that is deformed to absorb the movement of the position of the injection device 30, which is a part of the injection molding machine 80.

[0118] <Comparison of implementation methods>

[0119] When comparing the injection molding machine 10 according to the first embodiment and the injection molding machine 80 according to the second embodiment, both are similar in that the injection device 30 and the mold clamping device can be moved apart and brought closer in the protruding direction while the position of the injection device 30 is fixed. This enables the ejection action in the injection molding machine. However, in the first embodiment, the stand 50 supporting the mold clamping device 40 is slid in the protruding direction in the ejection action, whereas in the second embodiment, only the mold clamping device 60 is slid in the protruding direction in the ejection action.

[0120] In this regard, in the first embodiment, in order to make the stand 50 supporting the mold clamping device 40 slide in the protruding direction independently with respect to the injection device 30 and the floor 200, a sliding member 11 as a first movable member is arranged between the injection device 30 and the stand 50, and a sliding member 12 as a second movable member is arranged between the stand 50 and the floor 200. In contrast, in the second embodiment, a movable member for making the mold clamping device 60 slide in the protruding direction independently with respect to the injection device 30 and the stand 70 is arranged. Specifically, a sliding member 13 is arranged between the mold clamping device 60 and the stand 70.

[0121] Here, in the first embodiment, it is necessary to configure the sliding member 11 and the sliding member 12, whereas in the second embodiment, only the sliding member 13 is configured. Therefore, it can be said that the number of components used is small and simple. However, from the original structure of the injection molding machine, when the clamping device and the frame are fixed together, the stability during operation is higher. Therefore, in the case where high stability during operation of the injection molding machine is required, the first embodiment in which the clamping device 40 is fixed on the frame 50 to form an integrated structure is more preferred than the second embodiment in which the clamping device 60 can slide independently in the protruding direction relative to the frame 70.

Claims

1. An injection molding machine, characterized in that: have: An injection device, which injects the input molten resin into the mold; A mold clamping device, supporting the mold and performing mold clamping of the mold; A stand, arranged on the ground, and supporting the injection device and the mold clamping device; and A plurality of movable members enable the stand to independently move relative to the injection device and the ground along a protruding direction of the injection portion of the injection device.

2. The injection molding machine according to claim 1, characterized in that If the stand supporting the mold clamping device moves independently in the protruding direction relative to the injection device and the ground, the injection device and the mold are separated or approached.

3. The injection molding machine according to claim 1, characterized in that The stage is capable of independently moving in the protruding direction relative to the injection device via a first movable member among the plurality of movable members, and is capable of independently moving in the protruding direction relative to the ground via a second movable member among the plurality of movable members.

4. The injection molding machine according to claim 1, characterized in that One or more driving units are further provided, and the one or more driving units move the stage in the protruding direction.

5. The injection molding machine according to claim 4, characterized in that A synchronization mechanism is further provided for synchronizing an operation of the injection device to move independently in the protruding direction relative to the stage with an operation of the stage to move independently in the protruding direction relative to the ground.

6. The injection molding machine according to claim 1, characterized in that A first locking member is further provided for locking the stage from moving in the protruding direction.

7. The injection molding machine according to claim 1, characterized in that A second locking member is further provided for locking the injection device from moving in the protruding direction.

8. An injection molding machine, characterized in that: have: An injection device, which injects the input molten resin into the mold; A mold clamping device, supporting the mold and performing mold clamping of the mold; A stand, supporting the injection device and the mold clamping device; and The movable member can independently move the mold clamping device relative to the injection device and the stage in a protruding direction of the injection portion of the injection device.

9. The injection molding machine according to claim 8, characterized in that If the mold clamping device moves independently in the protruding direction relative to the injection device and the stage, the injection device and the mold are separated or approached.

10. The injection molding machine according to claim 8, characterized in that A driving unit is further provided for moving the mold clamping device in the protruding direction.

11. The injection molding machine according to claim 8, characterized in that A locking member is further provided for locking the mold clamping device from moving in the protruding direction.

12. A molten resin supply system, It is characterized in that The invention comprises: an output device having an output port for outputting molten resin and the position of the output port is fixed; and an injection molding machine for molding a molded product using the output molten resin. The injection molding machine comprises: an injection device having an input port whose position is fixed relative to the output port and injecting the molten resin input to the input port into the mold; A mold clamping device, supporting the mold and performing mold clamping of the mold; A stand, disposed on the ground and supporting the injection device and the mold clamping device; and A plurality of movable members enable the stand to independently move relative to the injection device and the ground along a protruding direction of the injection portion of the injection device.

13. A molten resin supply system, It is characterized in that The invention comprises: an output device having an output port for outputting molten resin and the position of the output port is fixed; and an injection molding machine for molding a molded product using the output molten resin. The injection molding machine comprises: an injection device having an input port whose position is fixed relative to the output port and injecting the molten resin input to the input port into the mold; A mold clamping device, supporting the mold and performing mold clamping of the mold; a stand, supporting the injection device and the mold clamping device; and The movable member can independently move the mold clamping device relative to the injection device and the stage in a protruding direction of the injection portion of the injection device.

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