Cassette type mold device and cassette type carrier truck used for the same

Abstract

To downsize a cassette type mold device.SOLUTION: A cassette-type mold device 10 molds a molded article by providing a replaceable cassette mold 20 between a fixed-side mold 18 and a movable-side mold 19 according to a molded article. A space part 14 is provided between a first support part 12 that supports a fixed-side platen 15 and a second support part 13 that supports a movable-side platen 16. The space part 14 is provided with a cassette-type exchange device 30 allowing for the replacement of the cassette mold 20. The cassette-type exchange device 30 includes: a shifter 32 that is moved in a same direction as a movement direction of the movable-side mold 19; a lifter 36 on which the cassette mold 20 can be mounted and that is lifted and lowered relative to the shifter 32; and a control device 17 that controls an operation of the shifter 32 and the lifter 36.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The technology disclosed in this specification relates to a cassette-type mold device and a cassette-type transport vehicle used therein. [Background technology]

[0002] Among cassette type mold devices that mold molded products by providing a cassette mold that can be replaced depending on the molded product between a fixed mold and a movable mold, some are provided with a cassette type exchange device that can exchange the cassette mold. An example of a cassette type exchange device is the cassette mold exchange aid described in Patent Document 1. This cassette mold exchange aid comprises an attachment base fixed to the movable platen, and a support table attached to the attachment base via a multi-joint arm so as to be rotatably displaceable in the horizontal direction. A cassette mold (corresponding to the "cassette mold" in this specification) is temporarily placed and held on the support table. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-150420 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, the cassette mold change auxiliary tool is provided so as to protrude laterally from the cassette type mold device, which increases the installation space for the cassette mold change auxiliary tool relative to the cassette type mold device, leading to an increase in the size of the cassette type mold device.

[0005] The problem to be solved by the technique disclosed in this specification is to reduce the size of a cassette-type mold apparatus. [Means for solving the problem]

[0006] In order to solve the above problems, the technique disclosed in this specification takes the following measures.

[0007] The first means is a cassette-type mold device that molds a molded product by providing a cassette mold that can be replaced depending on the molded product between a fixed side mold and a movable side mold, and a space is provided between a first support part that supports a member on the fixed side mold side and a second support part that supports a member on the movable side mold side, and a cassette type exchange device that can replace the cassette mold is provided in the space.

[0008] According to the first aspect, a cassette type exchange device capable of exchanging a cassette type is provided in a space between a first support part on the fixed side mold side and a second support part on the movable side mold side. Therefore, it is possible to suppress the cassette type exchange device from protruding to the side from the cassette type mold device. Therefore, it is possible to reduce the size of the cassette type mold device.

[0009] The second means is a cassette-type mold device of the first means, wherein the cassette-type exchange device has a shifter that moves in the same direction as the movement direction of the movable side mold, a lifter on which the cassette type can be placed and which is raised and lowered relative to the shifter, and a control device that controls the operation of the shifter and the lifter, and when removing the cassette type from between the fixed side mold and the movable side mold, the control device separates the fixed side mold and the movable side mold and, with the cassette type engaged with either the fixed side mold or the movable side mold, raises the lifter to place the cassette type on the lifter and moves the shifter to extract the cassette type from the one of the molds.This is a cassette-type mold device.

[0010] According to the second means, when the cassette mold is removed from between the fixed mold and the movable mold, the control device separates the fixed mold and the movable mold and places the cassette mold on the lifter while the cassette mold is fitted into one of the fixed mold and the movable mold. The cassette mold can then be removed efficiently by extracting it from one of the molds by moving the shifter.

[0011] The third means is a cassette-type mold device of the first means, wherein the cassette-type exchange device has a shifter that moves in the same direction as the movement direction of the movable side mold, a lifter on which the cassette type can be placed and which is raised and lowered relative to the shifter, and a control device that controls the operation of the shifter and the lifter, and when the cassette type is attached between the fixed side mold and the movable side mold, the control device moves the shifter to fit the cassette type into either the fixed side mold or the movable side mold with the cassette type placed on the lifter positioned between the fixed side mold and the movable side mold which are spaced apart, and then lowers the lifter.This is a cassette-type mold device.

[0012] According to the third means, when the cassette mold is attached between the fixed mold and the movable mold, in a state where the cassette mold is positioned between the separated fixed mold and the movable mold, the shifter is moved to fit the cassette mold into either the fixed mold or the movable mold, and then the lifter is lowered. Thus, the cassette mold can be attached efficiently.

[0013] The fourth means is a cassette type transport cart used for the cassette type mold device of any one of the first to third means, which transports the cassette mold into and out of the cassette mold exchange device.

[0014] According to the fourth aspect, the cassette type can be loaded and unloaded from the cassette type exchange device by using the cassette type transport cart. This allows the cassette type exchange device to be made more compact by the amount of space required for the cassette type transport cart. This in turn allows the production space and capital investment to be reduced.

[0015] The fifth means is a cassette type transport cart of the fourth means, and comprises a cart body, a lifting member that is capable of rising and lowering relative to the cart body, and an expandable member that is capable of expanding and contracting in the fore-and-aft direction of the cart body relative to the lifting member, wherein the expandable member has a transfer side roller conveyor that supports the cassette type so that it can move in the fore-and-aft direction of the cart body.

[0016] According to the fifth means, in the extended state of the expandable member relative to the lifting member, the cassette type can be transported in and out of the cassette type exchange device via the delivery side roller conveyor. Therefore, the transport length of the cassette type can be extended by extending the expandable member relative to the lifting member. In addition, the length of the cassette type transporting cart in the front-rear direction can be made compact by shortening the expandable member relative to the lifting member. Therefore, the operability of the cassette type transporting cart can be improved. In addition, the height position of the lifting member can be adjusted. Therefore, it is possible to correspond to the cassette type exchange device having a different height position of the lifter when the cassette type is loaded and unloaded. Therefore, it is not necessary to prepare a dedicated cassette type transporting cart for each cassette type exchange device having a different height of the lifter when the cassette type is loaded and unloaded.

[0017] The sixth means is a cassette type transport cart of the fifth means, in which the lifting member is provided with a car body side roller conveyor that supports the cassette type being transported in and out of the expandable member so that it can move in the fore-and-aft direction of the cart body.

[0018] According to the sixth aspect, the expandable member can be easily expanded and contracted while the cassette mold is supported on the vehicle body side roller conveyor. Also, the cassette mold can be transferred between the transfer side roller conveyor and the vehicle body side roller conveyor. Effect of the Invention

[0019] According to the technique disclosed in this specification, the cassette type mold unit can be made smaller by suppressing the lateral protrusion of the cassette type exchange device from the cassette type mold unit. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a front view showing a cassette-type mold device according to one embodiment. [Diagram 2] FIG. 2 is a right side view showing the cassette type changing device. [Diagram 3] FIG. [Figure 4] FIG. 4 is a right side view showing the cassette type transport platform car. [Diagram 5] FIG. 13 is a plan view showing the extended state of the telescopic member of the cassette type transport platform. [Figure 6] 13 is a right side view showing the cassette type transport cart for loading and unloading the cassette type into and from the cassette type exchange device. FIG. [Figure 7] 11A to 11C are diagrams showing the process of removing the cassette mold from the cassette-type mold device. [Figure 8] 11A to 11C are diagrams showing the process of attaching a cassette mold to a cassette-type mold device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment for carrying out the technology disclosed in this specification will be described with reference to the drawings. Fig. 1 is a front view showing a cassette-type die device. For convenience of explanation, the directions of up, down, left and right are defined based on the front view of Fig. 1. Each figure is also a schematic diagram.

[0022] (Cassette type mold device) As shown in Fig. 1, the cassette type mold device 10 is installed on a pedestal 11 extending in the left-right direction. A first support part 12 on the right side and a second support part 13 on the left side are arranged on the pedestal 11 at a predetermined distance. A space part 14 that opens upward is formed between the first support part 12 on the right side and the second support part 13 on the left side. A cassette type exchange device 30 that can exchange the cassette mold 20 is provided in the space part 14. The cassette type exchange device 30 will be described later.

[0023] A fixed platen 15 is installed on the first support portion 12. A movable platen 16 is installed on the second support portion 13 so as to be movable back and forth in the left and right direction. The injection molding machine including the cassette type mold device 10 includes a mold clamping device including the fixed platen 15 and the movable platen 16, as well as a control device 17 that controls the injection device and each device. The control device 17 is also used to control each device of the cassette type exchange device 30.

[0024] A fixed-side mold 18 is attached to the fixed-side platen 15 on the movable-side platen 16 side (left side). A movable-side mold 19 is attached to the fixed-side platen 16 on the fixed-side platen 15 side (right side). A cassette mold 20 is provided between the fixed-side mold 18 and the movable-side mold 19.

[0025] The cassette mold 20 has a fixed cassette metal mold 21 and a movable cassette metal mold 22 removably held by the fixed cassette metal mold 21. Fig. 1 shows a state in which the cassette mold 20 is positioned at an intermediate position (loading / unloading position) between the fixed metal mold 18, which is at the maximum separation position, and the movable metal mold 19. In addition, between the fixed cassette metal mold 21 and the movable cassette metal mold 22, a molding space 26 having a shape corresponding to a desired molded product is formed.

[0026] When forming a molded product, the fixed cassette mold 21 and the movable cassette mold 22 of the cassette mold 20 are separable. The fixed cassette mold 21 is removably held in a state where it is fitted into a fitting recess 18a formed in the fixed mold 18. The movable cassette mold 22 is removably held in a state where it is fitted into a fitting recess 19a formed in the movable mold 19. In this state, the fixed cassette mold 21 and the fixed mold 18 function as a fixed mold 24, and the movable cassette mold 22 and the movable mold 19 function as a movable mold 25.

[0027] The movable platen 16 advances (moves to the right) relative to the fixed platen 15, thereby clamping the movable mold 25 to the fixed mold 24. In this state, the injection device fills the molding space 26 of the cassette mold 20 with molten resin at high pressure. The molten resin in the molding space 26 is cooled and solidified to obtain a molded product. Thereafter, the movable platen 16 retreats (moves to the left) relative to the fixed platen 15, thereby opening the movable mold 25 and removing the molded product. The mold opening position of the movable platen 16 is set to the right of the maximum retreat position. At the maximum retreat position of the movable platen 16, the fixed mold 18 and the movable mold 19 are at the maximum separation position.

[0028] The cassette mold 20 is replaced with the fixed mold 18 and the movable mold 19 depending on the molded product to be formed. When replacing the cassette mold 20, the fixed cassette mold 21 and the movable cassette mold 22 are held integrally.

[0029] In the cassette type mold apparatus 10, the first support part 12 supports members on the fixed mold 18 side. The second support part 13 supports members on the movable mold 19 side. In this embodiment, the fixed platen 15 corresponds to the "members on the fixed mold side", and the movable platen 16 corresponds to the "members on the movable mold side".

[0030] (Cassette type exchange device 30) As shown in FIG. 1, the cassette-type exchange device 30 provided in the space 14 between the first support part 12 on the right side and the second support part 13 on the left side includes a machine base 31 installed on a pedestal 11. The machine base 31 is formed in a rectangular box shape by a bar-shaped material such as a steel material. A shifter cylinder 33 is supported in a horizontal state with its axial direction as the left-right direction at the upper left end of the machine base 31. A shifter 32 having a substantially rectangular plate shape is connected in a horizontal state to the tip of a rod 33a protruding to the right from the shifter cylinder 33. The shifter 32 moves back and forth in the left-right direction by the operation of the shifter cylinder 33. In FIG. 1, the state in which the shifter 32 has moved to the right is shown by a two-dot chain line 32. The left-right direction corresponds to the same direction as the moving direction of the movable die 19. A support device (not shown) is provided between the machine base 31 and the shifter 32 to guide and support the shifter 32 so that it can move in the left-right direction in a horizontal state.

[0031] A lifter cylinder 35 is supported below the center of the shifter 32 in a suspended state with its axis extending vertically. A center of a substantially rectangular plate-like lifter 36 is connected horizontally to the tip of a rod 35a protruding from the lifter cylinder 35 above the shifter 32. The lifter 36 is formed so that a cassette mold 20 can be placed on it. The lifter 36 is raised and lowered by the operation of the lifter cylinder 35. In FIG. 1, the lifter 36 is shown by a two-dot chain line 36 in a state in which the shifter 32 has moved to the right and the lifter 36 has been lowered, and the rod 35a is shown by a two-dot chain line 35a in a state in which it has been raised. A guide device (not shown) is provided between the shifter 32 and the lifter 36 to guide the lifter 36 to be raised and lowered in a horizontal state.

[0032] The driving means for the shifter cylinder 33 and the lifter cylinder 35 can be an electric, hydraulic, or pneumatic driving source. The operation of both cylinders 33, 35 (specifically, the driving source) is controlled by the control device 17 of the injection molding machine. Figure 2 is a right side view showing the cassette type exchange device 30, and Figure 3 is a plan view showing the lifter 36.

[0033] 3, two lifter-side roller conveyors 38 are provided on the left and right sides of the lifter 36. Each lifter-side roller conveyor 38 includes a machine frame 38a extending in the front-rear direction and a number of rollers 38c arranged in series on the machine frame 38a at predetermined intervals in the longitudinal direction and rotatably supported via a number of shafts 38b.

[0034] Both lifter side roller conveyors 38 support the cassette mold 20 placed on the lifter 36 so that it can move in the front-rear direction. The front-rear direction corresponds to a direction perpendicular to the moving direction of the movable mold 19. When exchanging the cassette mold 20, a cassette type transport cart 40 is used to carry the cassette mold 20 into and out of the cassette type exchange device 30 (see FIG. 6). FIG. 4 is a right side view showing the cassette type transport cart 40.

[0035] (Cassette type transport cart 40) As shown in Fig. 4, the cassette type transport cart 40 is provided with a lifting member 43 that is lifted and lowered via a lifting device 42 including X-shaped legs 42a on a wheeled hand-pushed cart body 41. The lifting member 43 is lifted and lowered by manually rotating a handle 42b of the lifting device 42. This allows the height position of the lifting member 43 to be adjusted.

[0036] An expandable member 45 is provided on the lifting member 43 so as to be expandable, i.e. slidable, in the front-rear direction (left-right direction in FIG. 4) of the cart body 41. The expandable member 45 is manually expanded and contracted. A slide device (not shown) is provided between the lifting member 43 and the expandable member 45 to guide and support the expandable member 45 so as to be movable in the front-rear direction in a horizontal state. FIG. 5 is a plan view showing the expanded state of the expandable member 45 of the cassette type transport cart 40.

[0037] As shown in Fig. 5, the expandable member 45 has two transfer side roller conveyors 46 on the left and right that support the cassette type 20 that is carried in and out of the cassette type exchange device 30 so as to be movable in the front-rear direction of the carriage body 41. Each transfer side roller conveyor 46 (see Fig. 4) has a machine frame 46a extending in the front-rear direction and a number of rollers 46c that are arranged in series on the machine frame 46a at predetermined intervals in the longitudinal direction and rotatably supported via a number of shafts 46b.

[0038] The lifting member 43 is provided with two left and right car body side roller conveyors 48 which support the cassette molds 20 which are carried in and out of the expandable member 45 so as to be movable in the front-rear direction of the car body 41. Both car body side roller conveyors 48 are disposed at the same height near the outside of each transfer side roller conveyor 46. Each car body side roller conveyor 48 (see FIG. 4) includes a machine frame 48a extending in the front-rear direction, and a number of rollers 48c which are arranged in series on the machine frame 48a at predetermined intervals in the longitudinal direction and rotatably supported via a number of shafts 48b.

[0039] (Cassette type 20 replacement procedure using the cassette type replacement device 30 and the cassette type transport vehicle 40) The procedure for exchanging the cassette mold 20 is broadly divided into a process of removing the cassette mold 20 from the cassette type mold device 10 by the cassette type exchange device 30, a process of transporting the cassette mold 20 out of the cassette type exchange device 30 using the cassette type transport cart 40, a process of transporting the cassette mold 20 into the cassette type exchange device 30 using the cassette type transport cart 40, and a process of attaching the cassette mold 20 to the cassette type mold device 10 by the cassette type exchange device 30. Note that, unless otherwise specified, it is assumed that the control device 17 (see FIG. 1) controls each step of the cassette type exchange device 30.

[0040] (Process of removing the cassette mold 20 from the cassette type mold device 10 by the cassette mold exchange device 30) 7(a), the cassette-type mold device 10 is now in a mold open state. In this state, in the fixed mold 24, the fixed-side cassette mold 21 is removably held by the fixed-side mold 18 via the fixed-side clamp device 51. In the movable mold 25, the movable-side cassette mold 22 is removably held by the movable-side mold 19 via the movable-side clamp device 52.

[0041] The fixed mold side clamping device 51 and the movable mold side clamping device 52 are of well-known structure controlled by the control device 17 (see FIG. 1), and detailed description thereof will be omitted. The fixed mold 18 is provided with an extrusion cylinder 55 for extruding the fixed cassette mold 21 of the cassette mold 20 from the fixed mold 18. In addition, the locking device 53 that removably holds the fixed cassette mold 21 and the movable cassette mold 22 is released.

[0042] Next, as shown in Fig. 7(b), the movable mold 25 is closed on the fixed mold 24. Thereafter, the fixed cassette mold 21 and the movable cassette mold 22 are held by the locking device 53. As a result, both cassette molds 21, 22 are integrated into the cassette mold 20. The locking device 53 is controlled by the control device 17 (see Fig. 1). Thereafter, the movable mold side clamping device 52 in the movable mold 25 is released, thereby releasing the hold of the movable cassette mold 22 on the movable mold 19.

[0043] Next, as shown in Fig. 7(c), the movable side mold 19 is opened to the mold open position. As a result, the movable side cassette mold 22 is extracted from the fitting recess 19a of the movable side mold 19. In this state, of the cassette mold 20, the fixed side cassette mold 21 corresponds to the fitting portion with respect to the fixed side mold 18, and the movable side cassette mold 22 corresponds to the non-fitting portion with respect to the fixed side mold 18. The fixed side mold 18 corresponds to "one mold" as referred to in this specification. The movable side mold 19 corresponds to "the other mold" as referred to in this specification.

[0044] Next, as shown in Fig. 7(d), the lifter 36 is raised from a position directly below the movable cassette mold 22 to abut against the movable cassette mold 22. As a result, the cassette mold 20 is placed on the lifter 36. At this time, the cassette mold 20 is supported by both lifter side roller conveyors 38 of the lifter 36 (see Fig. 2). Next, the fixed mold side clamp device 51 in the fixed mold 24 is released, and the fixed cassette mold 21 is released from the hold of the fixed mold 18.

[0045] Next, as shown in FIG. 7(e), the rod 55a is projected by the actuation of the extrusion cylinder 55, and the lifter 36 is moved leftward with the leftward movement of the shifter 32 (see FIG. 4). This causes the fixed cassette mold 21 to be extracted from the fitting recess 18a of the fixed mold 18. Also, the movable mold 19 is moved to the maximum retreat position (full stroke position). This causes the cassette mold 20 to be positioned at an intermediate position between the fixed mold 18 and the movable mold 19, which are positioned at the maximum separation position (see FIG. 1). Thereafter, the rod 55a of the extrusion cylinder 55 is retracted to a standby position within the fixed mold 18.

[0046] In this manner, removal of the cassette mold 20 is completed. The position of the lifter 36 in this state is referred to as the cassette mold 20 loading / unloading position.

[0047] (Process of removing the cassette type 20 from the cassette type exchange device 30 using the cassette type transport cart 40) An operator moves the cassette type transport cart 40 (see FIG. 4) to the front of the cassette type exchange device 30 (see FIG. 6). At this time, the expandable member 45 of the cassette type transport cart 40 is in a contracted state (see the two-dot chain line 45 in FIG. 6). In addition, in the cassette type exchange device 30, the cassette type 20 is placed on the lifter 36 which is in the loading / unloading position.

[0048] 6, the telescopic member 45 is extended by an operator to connect it to the lifter 36. When connecting the telescopic member 45 to the lifter 36, the height of the telescopic member 45 and the lifting member 43 is adjusted by the lifting device 42 so that they match the height of the lifter 36.

[0049] Next, the worker moves the cassette mold 20 on the lifter 36 forward (to the left in Figure 6) using the lifter side roller conveyor 38 and the transfer side roller conveyor 46, and moves it onto the vehicle body side roller conveyor 48 (see dotted line 20 in Figure 6).

[0050] Next, the worker shortens the expandable member 45 (see the two-dot chain line 45 in FIG. 6). In this state, the cassette mold 20 is supported by the cooperation of the delivery side roller conveyor 46 and the vehicle body side roller conveyor 48 (see FIG. 4). In this state, the cassette mold transport cart 40 is moved, and the cassette mold 20 is stored in a predetermined storage location. In this way, the removal of the cassette mold 20 from the cassette mold exchange device 30 is completed.

[0051] (Process of carrying the cassette type 20 into the cassette type exchange device 30 using the cassette type transport cart 40) The cassette type transport cart 40 (see FIG. 4), which has transported the cassette type 20 to be used next from the storage location by the worker, is moved in front of the cassette type exchange device 30 (see FIG. 6). At this time, the expandable member 45 of the cassette type transport cart 40 is in a contracted state (see the two-dot chain line 45 in FIG. 6). In addition, in the cassette type exchange device 30, the lifter 36 is positioned at the loading / unloading position (see FIG. 2).

[0052] 6, the telescopic member 45 is extended by an operator to connect it to the lifter 36. When connecting the telescopic member 45 to the lifter 36, the height of the telescopic member 45 and the lifting member 43 is adjusted by the lifting device 42 so that they match the height of the lifter 36.

[0053] Next, the cassette mold 20 (see the two-dot chain line 20 in Figure 6) on the vehicle body side roller conveyor 48 is moved onto the lifter side roller conveyor 38 of the lifter 36 using the vehicle body side roller conveyor 48 and the delivery side roller conveyor 46 by an operator.

[0054] Next, the expandable member 45 is contracted by the worker (see FIG. 4). In this state, the cassette type transport cart 40 is moved to a predetermined cart storage area. In this manner, the loading of the cassette type 20 into the cassette type exchange device 30 is completed.

[0055] (Process of attaching the cassette mold 20 to the cassette type mold device 10 by the cassette mold exchange device 30) As shown in Figure 8(a), the cassette mold 20 loaded onto the lifter 36, which is currently in the loading / unloading position, is positioned at an intermediate position between the fixed mold 18 and the movable mold 19, which are in the maximum separation position.

[0056] Next, as shown in Fig. 8(b), the lifter 36 is moved in the same direction as the shifter 32 (see Fig. 4) moves to the right. This causes the fixed cassette die 21 of the cassette die 20 to fit into the fitting recess 18a (see Fig. 8(a)) of the fixed die 18. Accordingly, the movable die 19 is moved to the die opening position.

[0057] 8(c), the fixed-side cassette mold 21 is held on the fixed-side mold 18 by the fixed-side clamp device 51. After that, the lifter 36 is lowered to the standby position.

[0058] 8(d), the movable side cassette mold 22 of the cassette mold 20 is fitted into the fitting recess 19a by closing the movable side mold 19. Next, the movable side cassette mold 22 is held in the movable side mold 19 by the movable mold side clamp device 52. In addition, the fixed side cassette mold 21 and the movable side cassette mold 22 can be separated by releasing the lock device 53. As a result, the fixed side cassette mold 21 and the fixed side mold 18 function as the fixed mold 24, and the movable side cassette mold 22 and the movable side mold 19 function as the movable mold 25.

[0059] 8(e), it becomes possible to open the movable mold 25 relative to the fixed mold 24. In this manner, the attachment of the cassette mold 20 to the cassette type mold device 10 is completed. After that, the process proceeds to the molding process of the molded product.

[0060] (Actions and Effects of the Embodiments) According to the cassette type mold apparatus 10 described above, the cassette type exchange device 30 capable of exchanging the cassette mold 20 is provided in the space 14 between the first support part 12 on the fixed side mold 18 side and the second support part 13 on the movable side mold 19 side. Therefore, it is possible to suppress the cassette type exchange device 30 from protruding laterally from the cassette type mold apparatus 10. Therefore, it is possible to reduce the size of the cassette type mold apparatus 10.

[0061] When removing the cassette mold 20 from between the fixed mold 18 and the movable mold 19, the control device 17 separates the fixed mold 18 and the movable mold 19 and places the cassette mold 20 on the lifter 36 while the cassette mold 20 is fitted into the fixed mold 18. The shifter 32 is then moved to extract the cassette mold 20 from the fixed mold 18, thereby enabling the cassette mold 20 to be efficiently removed.

[0062] Furthermore, when the cassette mold 20 is attached between the fixed mold 18 and the movable mold 19, in a state in which the cassette mold 20 is positioned between the separated fixed mold 18 and the movable mold 19, the shifter 32 is moved to fit the cassette mold 20 into the fixed mold 18, and then the lifter 36 is lowered. Thus, the cassette mold 20 can be attached efficiently.

[0063] In addition, by using the cassette type transport cart 40, the cassette type 20 can be loaded and unloaded into and from the cassette type exchange device 30. This allows the cassette type exchange device 30 to be made more compact in size by the amount of space required for the cassette type transport cart 40. This in turn allows the production space and capital investment to be reduced.

[0064] In addition, in the extended state of the expandable member 45 relative to the lifting member 43, the cassette type 20 can be transported into and out of the cassette type exchange device 30 via the delivery side roller conveyor 46. Therefore, the extension of the expandable member 45 relative to the lifting member 43 can extend the transport length of the cassette type 20. In addition, the shortening of the expandable member 45 relative to the lifting member 43 can make the length of the cassette type transport cart 40 in the front-rear direction compact. Therefore, the operability of the cassette type transport cart 40 can be improved. In addition, the height position of the lifting member 43 can be adjusted. Therefore, it is possible to correspond to the cassette type exchange device 30 in which the height position of the lifter 36 differs when the cassette type 20 is transported into and out. Therefore, it is not necessary to prepare a dedicated cassette type transport cart 40 for each cassette type exchange device 30 in which the height of the lifter 36 differs when the cassette type 20 is transported into and out.

[0065] In addition, the expandable member 45 can be easily expanded and contracted in a state where the cassette mold 20 is supported on the vehicle body side roller conveyor 48 provided on the lifting member 43. In addition, the cassette mold 20 can be transferred between the delivery side roller conveyor 46 and the vehicle body side roller conveyor 48.

[0066] [Other embodiments] The technology disclosed in this specification is not limited to the embodiment, and can be embodied in various other forms. For example, in the embodiment, the fixed side mold 18 is one mold and the movable side mold 19 is the other mold, but the movable side mold 19 may be one mold and the fixed side mold 18 may be the other mold. In addition, when replacing the cassette mold 20, the movable side mold 19 is moved with the movement of the shifter 32, but the movable side mold 19 may be moved to the maximum retreat position in advance. In addition, the movement of the shifter 32 and / or the lifter 36 may be manually performed. In addition, the cassette type mold device 10 is not limited to the injection molding machine of the resin exemplified in the embodiment, and may be applied to an injection molding machine of a meltable metal material such as aluminum.

[0067] The cassette type transporting cart 40 may run on a pair of rails. The vehicle-side roller conveyor 48 of the cassette type transporting cart 40 may be omitted. The raising and lowering of the lifting member 43 and / or the extension and contraction of the expandable member 45 of the cassette type transporting cart 40 may be automated, not limited to manual operation. The cassette type 20 may be carried in and out of the cassette type transporting cart 40 by a robot, a transfer device, or the like. When the cassette type transporting cart 40 is not used, the cassette type 20 may be carried in and out of the cassette type exchange device 30 by a robot, an operator, or the like. [Explanation of symbols]

[0068] 10 Cassette type mold device 12 1st support part 13 Second support part 14 Space section 15 Fixed side platen (fixed side mold side component) 16 Movable platen (movable mold side component) 17 Control device 18 Fixed side mold (one of the molds) 19 Movable mold (other mold) 20 Cassette type 30 Cassette type exchange device 32 Shifter 36 Lifter 40 Cassette type transport cart 41 Cart body 43 Lifting member 45 Elastic member 46 Delivery side roller conveyor 48 Vehicle side roller conveyor

Claims

1. A cassette type mold device for molding a molded product by providing a cassette mold, which is replaceable depending on the molded product, between a fixed mold and a movable mold, a space is provided between a first support portion that supports a member on the fixed mold side and a second support portion that supports a member on the movable mold side, A cassette type mold device, in which a cassette mold exchange device capable of exchanging the cassette mold is provided in the space portion.

2. 2. The cassette type mold apparatus according to claim 1, The cassette mold exchange device includes a shifter that is moved in the same direction as the moving direction of the movable mold, a lifter on which the cassette mold can be placed and which is raised and lowered relative to the shifter, and a control device that controls the operation of the shifter and the lifter, When removing the cassette mold from between the fixed side mold and the movable side mold, the control device separates the fixed side mold and the movable side mold and, with the cassette mold engaged with either the fixed side mold or the movable side mold, raises the lifter to place the cassette mold on the lifter and moves the shifter to extract the cassette mold from one of the molds.This is a cassette type mold device.

3. 2. The cassette type mold apparatus according to claim 1, The cassette mold exchange device includes a shifter that is moved in the same direction as the moving direction of the movable mold, a lifter on which the cassette mold can be placed and which is raised and lowered relative to the shifter, and a control device that controls the operation of the shifter and the lifter, When the cassette mold is attached between the fixed side mold and the movable side mold, the control device positions the cassette mold placed on the lifter between the separated fixed side mold and the movable side mold, moves the shifter to fit the cassette mold into either the fixed side mold or the movable side mold, and then lowers the lifter.This is a cassette type mold device.

4. A cassette type transport vehicle for use in the cassette type mold device according to any one of claims 1 to 3, A cassette type transport vehicle that carries the cassette type into and out of the cassette type exchange device.

5. The cassette type transport vehicle according to claim 4, The vehicle includes a carriage body, a lifting member that is provided so as to be liftable relative to the carriage body, and an expandable member that is provided so as to be expandable and contractable in a front-rear direction of the carriage body relative to the lifting member, The expandable member is a cassette type transport cart having a delivery side roller conveyor that supports the cassette type so that it can move in the front-to-rear direction of the cart body.

6. The cassette type transport vehicle according to claim 5, A cassette type transport cart, wherein the lifting member is provided with a vehicle body side roller conveyor that supports the cassette type to be transported in and out of the expandable member so that the cassette type can be moved in the front-rear direction of the cart body.

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