Assembly stand for injection device and injection molding device

Abstract

Assembly stand (2) for a spraying device (1), the assembly stand (2) comprising: a base part (22); an attachment part (21) which is arranged vertically on the base part (22) and to which the spray device (1) is attached; a base member protrusion portion (221) provided on an upper surface of the base member (22); an attachment protrusion portion (211) provided on a side surface of the attachment (21) around the base protrusion portion (221); and an anchoring portion (24) to which a side surface of the base part projection portion (221) is anchored to a side surface of the attachment part projection portion (211), wherein the assembly stand (2) is movable with respect to a support (35) which supports the base part (22).

Description

BACKGROUND OF THE INVENTION 1. Field of the invention

[0001] The present invention relates to an assembly stand for an injection device and an injection molding device, and more particularly relates to an assembly stand to which a vertical version of an injection device is attached. 2. Description of the state of the art

[0002] In an assembly stand to which an injection device of an injection molding machine is movably mounted, the injection device must be securely fixed. Furthermore, vibrations are generated in an assembly stand when the injection device moves relative to the assembly stand or when the injection device is driven, and therefore stability is required. Especially in the case of a vertically designed injection device, its center of gravity is high, and thus further stability is required. Furthermore, the assembly stand itself is movable while the injection device is attached to it.

[0003] An example of a conventional technique relating to the assembly stand for the injection device is disclosed in US 7 833 008 B2. The assembly stand has a substantially triangular shape when viewed from a side of an injection unit. Furthermore, a frame is provided along a longitudinal direction of an upper part of a horizontal mold clamp, and a guide rail is provided on this frame. Furthermore, the assembly stand is movable on the frame by being guided on the guide rail. According to this configuration, the assembly stand can accommodate the injection unit according to the dimensions of a mold. Such an assembly stand is excellent in terms of stability, weight, and space requirements.

[0004] Furthermore, another example of the conventional art relating to the mounting stand for the spraying device is disclosed in JP 2003-103557 A. The mounting stand includes an apex movement structure including a base plate, a pair of substantially triangular side plates provided on the base plate at both ends thereof, and a reinforcing plate extending between the pair of side plates. A recessed portion for lightening is provided in each pair of side plates and the reinforcing plate. Furthermore, a rail support provided on an outer side of a lower end edge of the side plates of the apex movement structure and an inner side of a side plate of a base structure are complementarily related. According to this configuration, the mounting stand to which the spraying device is mounted is movable with respect to the base structure.According to this design, the assembly stand is applicable to molds of various sizes and shapes. Such an assembly stand is lighter than the one in the above-described US Pat. No. 7,833,008 B2. However, its space requirements are barely changed.

[0005] Furthermore, another example of the conventional art relating to the mounting stand for the injection device is disclosed in JP 2005-262849 A. The mounting stand includes a unit base, a pair of support posts arranged vertically by fixing their lower ends to the unit base, and a support post connecting member that connects the upper ends of the pair of support posts. Furthermore, a tie rod of an upper part is inserted into an opening of a base portion of the unit base between a fixed die platen and a movable die platen. According to this configuration, the mounting stand on which the injection device is mounted is movable with respect to the tie rod. According to this configuration, a position of the injection device can be aligned with a pellet introduction hole of a nozzle contact bushing formed in a mold.In such a mounting stand, the space requirement is reduced because the pair of support posts are arranged vertically on a horizontal part of the unit base.

[0006] In the jig disclosed in JP 2005-262849 A described above, the support posts vibrate easily at the time of movement or driving, even though the space is small, and the injection device easily becomes unstable. Furthermore, a work of attaching and detaching a mold and a platen is caused at the time of mold replacement work. Meanwhile, the jig disclosed in JP 2005-262849 A moves along the pull rod between a fixed platen and a movable platen, thus hindering the mold replacement work. A structure for easily retracting the injection device or jig from above the mold at the time of such work is desired.However, in the above-described assembly stand disclosed in US Pat. No. 7,833,008 B2 or JP 2003-103557 A, the rail must be arranged outside the mold side of the clamping plate, and thus a frame supporting the rail, etc., is provided. This raises a problem of size increase, cost increase, etc.

[0007] US 2015 / 0 283 744 A1 describes a positioning device for an injection unit, wherein the injection unit is attached to a lifting device, which in turn is attached to a movable base of an assembly stand.

[0008] US 2003 / 0 026 866 A1 describes an injection molding device that enables movement of the injection molding machine in multiple planes. The device has a frame and an injection molding machine mounted within the frame. Both the frame and the injection molding machine have a plurality of interlocking rails and rail bearings. The movement of the rails in the rail bearings enables the injection molding machine to move relative to the frame. The frame is in two parts, with the two parts interlocking and able to move relative to one another. DE 10 2004 057 164 A1 describes an injection molding machine with a clamping unit, wherein the clamping unit comprises at least two mold mounting plates, a first plasticizing unit for filling a first mold cavity, and a second plasticizing unit for filling a second mold cavity that is different from the first mold cavity.In order to enable a particularly space-saving installation of the machine, it is proposed that the second plasticising unit is arranged on a holder and is aligned substantially vertically and that the holder is either attached to a mould clamping plate or held on a frame which extends over the clamping unit. SUMMARY OF THE INVENTION

[0009] In view of the above-mentioned problems of the conventional art, it is an object of the invention to provide an assembly stand for an injection molding apparatus that has a small footprint and high stability. Furthermore, another object is to provide an injection molding apparatus that can minimize the space required for a support for moving the assembly stand.

[0010] A first type of assembly stand for a spraying device according to the invention comprises the features of claim 1, namely: a base part; an attachment part arranged vertically on the base part and to which the spraying device is fastened; and an anchoring section, wherein the assembly stand is movable with respect to a support which supports the base part.

[0011] A second type of assembly stand for a spraying device according to the invention comprises the features of claim 2, namely: a base part; an attachment part arranged vertically on the base part and to which the spraying device is fastened; and an anchoring section, wherein the assembly stand is movable with respect to a support which supports the base part.

[0012] The attachment part projection section can engage the base part projection section.

[0013] On the assembly stand of the first and second type, the anchoring section can be anchored by a screw.

[0014] An injection molding machine according to the invention comprises a work stand of the first or second type as described above, and a support that supports the base part of the work stand, wherein along a direction in which the work stand is movable, a supported portion for the base part of the work stand is provided at a portion at which the base part is supported by the support, and the support is provided for a mold clamping device.

[0015] The support may be provided on a frame of the mold clamping device, a fixed clamping plate of the mold clamping device, or a movable clamping plate of the mold clamping device.

[0016] According to the invention, it is possible to provide an assembly stand for an injection molding machine which has a high level of stability while requiring little space.

[0017] Furthermore, according to the invention, it is possible to provide an injection molding apparatus in which it is easily possible to retract an injection device or a jig from above a mold at the time of work such as mold replacement, and in which it is possible to minimize a space requirement of a support for moving the jig. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is an overall view of an injection molding machine including a mounting stand according to a non-claimed example for a better understanding of the invention; Fig. 1B is a diagram of the Fig. 1A shown assembly stand seen in direction A; Fig. 1C is an enlarged sectional view of a dotted line in Fig. 1A section B; Fig. 2A is an overall view of an injection molding apparatus including a mounting stand according to a first embodiment of the invention; Fig. 2B is a diagram of the Fig. 2A shown assembly stand seen in direction A; Fig. 2C is an enlarged sectional view of a Fig. 2A section B indicated by a dotted line; Fig. 3A is an overall view of an injection molding apparatus including a mounting stand according to a second embodiment of the invention; Fig. 3B is a diagram of the Fig. 3A shown assembly stand viewed in direction A; and Fig. 3C is an enlarged sectional view of a Fig. 3A, section B indicated by a dotted line. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] First, the Fig. 1A, Fig. 1B and Fig. 1C a description is given of a non-claimed example of an injection molding apparatus comprising an assembly stand for a better understanding of the invention.

[0019] The Fig. 1A is an overall view of the injection molding apparatus including a work stand 2 according to the present example. An injection device 1 is attached to the work stand 2. The work stand 2 is arranged above a mold clamping device 3. The injection molding apparatus closes and clamps the molds 33 and 34 by means of the mold clamping device 3, injects a material into the molds 33 and 34 from the injection device 1, and removes a molded part from the molds 33 and 34.

[0020] An overview of an injection molding process of the injection molding machine is shown below.

[0021] The mold 33 is fixed to a movable platen 31, the mold 34 is fixed to a fixed platen 32, the movable platen 31 is moved toward the fixed platen 32, and the mold 33 and the mold 34 are closed to form an injection space. Then, the jig 2, to which the injection device 1 is attached, is shifted with respect to the mold jig 3, the injection device 1 is shifted with respect to the jig 2, and a material is injected from the injection device 1 into the injection space formed in the molds 33 and 34. After a predetermined time elapses, the movable platen 31 is moved in a direction farther away from the fixed platen 32, the mold 33 and the mold 34 are opened, and a molded part is taken out.

[0022] In addition, at the time of a mold replacement in which a different mold is used, or an operation related to an attached or detached portion of the clamping plate and the mold, such as an inspection of the connection between the mold and the clamping plate, the injection device 1 and the assembly stand 2 are moved so that the operation is not hindered. The injection device 1 and the assembly stand 2, as shown in Fig. 1A, are located at positions where they retract so as not to cause any hindrance to the work process. A direction of movement of the assembly stand 2 with respect to the mold clamping device 3 is a direction of a Fig. 1A shown arrow X.

[0023] The assembly stand 2 is moved when a supported section 23 attached to the assembly stand 2 moves with respect to a support 35 which supports the supported section 23.

[0024] A description of each component included in the injection molding apparatus is given below.

[0025] The spraying device 1 is a vertical spraying device. The spraying device 1 is attached to an attachment 21 of the assembly stand 2 described below in such a way that the spraying device 1 is movable in a vertical direction.

[0026] The assembly stand 2 comprises an attachment part 21 and a base part 22 on which the attachment part 21 is arranged vertically, and further comprises an anchoring section 24 described below. As in Fig. As shown in Figure 1A, an overall shape of the work stand 2, viewed from the side, substantially corresponds to an inverted T-shape. Since the work stand 2 has such a shape, the work stand 2 can be made lighter and occupy a smaller space, compared with the work stand having a substantially triangular shape disclosed in US Pat. No. 7,833,008 B2, the above-described conventional art document.

[0027] In Fig. 1A or Fig. 1B, the attachment part 21 has a prismatic body with a rectangular cross-section and is provided so that it extends from the base part 22 in a vertical direction. As in Fig. 1C, a screw hole 212 corresponding to a screw 25 is also provided on a side surface of the attachment 21 in a portion of the attachment 21 that comes into contact with the base 22 and a position that comes into contact with a side surface of a base protrusion portion 221 described below.

[0028] The attachment part 21 may be arranged vertically on the base part 22, and a shape, a material, etc. thereof are not particularly limited. Fig. 1A or Fig. 1B illustrates that the attachment 21 has a rectangular cross-section and extends in the vertical direction. However, the attachment is not limited to these shapes. Furthermore, any method may be used to arrange the attachment 21 on the base part 22. For example, a lower surface of the attachment 21 may be fixed to an upper surface of the base part 22 by welding, etc.

[0029] As in Fig. 1A to Fig. As shown in Fig. 1C, the base protrusion portion 221 is provided on the upper surface of the base 22. A through hole 222 for the screw 25 is provided in the base protrusion portion 221. Similar to the attachment 21, a shape, material, etc. of the base 22 are not particularly limited, and this also applies to the base protrusion portion 221. The base protrusion portion 221 may be molded integrally with the base 22 or may be a separate part attached to the base 22.

[0030] The anchoring section 24 (a section defined by surrounding it with a dotted line in Fig. 1C) is formed when the side surface of the base part projection portion 221 comes into contact with the side surface of the attachment part 21 and is anchored thereto. As shown in Fig. Specifically, as shown in FIG. 1C, the screw 25 is inserted into the through hole 222 provided in the base protrusion portion 221 and screwed into the screw hole 212 provided on the side surface of the attachment 21. In this way, the attachment is more firmly fixed to the base 22, and stability is increased. An area (a contact surface, etc.) of the anchoring portion 24 is determined by considering stability of the attachment 21 with respect to the base 22. In addition, rigidities of the attachment 21 and the base protrusion portion 221 are taken into consideration. However, if the anchoring portion 24 is set excessively large, its space becomes large. Therefore, a part where the base 22 comes into contact with the attachment 21 is not provided to a high position in the attachment 21.

[0031] Furthermore, at the time of the work of assembling the attachment 21 with the base 22, the work can be performed by aligning the attachment 21 with the base protrusion portion 221 due to the presence of the base protrusion portion 221. Thus, the positioning can be performed easily, contributing to the efficiency of the work.

[0032] As a configuration of the anchoring portion 24, anchoring by an appropriate method such as welding may be employed instead of anchoring with the bolt 25, and combination with the bolt is possible.

[0033] The supported portion 23 is provided on the base part 22. Furthermore, the supported portion 23 is provided to extend elongatedly along the moving direction of the work stand 2. Specific examples of the supported portion 23 include a rail.

[0034] In Fig. 1A and Fig. 1B, the supported portion 23 is provided on a lower surface of the base part 22. However, its mounting location is not limited as long as the supported portion 23 is supported by the support 35. For example, if the support 35 is provided on a side surface side of the base part 22, then the supported portion 23 is provided at a location corresponding thereto. If the support 35 is provided on an upper surface side of the base part 22, then the supported portion 23 is provided at a mounting location corresponding thereto. In other words, the support 35 supports the supported portion 23 from above. In addition, in Fig. 1A and Fig. 1B, the supported portion 23 is provided in two rows in a width direction over an entire length of the base part 22. However, the invention is not limited to this. A range in which the mounting stand 2 is movable can be covered, and the number of rows can be appropriately determined. In addition, although not shown, an opening or a groove may be provided in the base part 22 such that vertical movement of the spraying device 1 is not hindered.

[0035] The mold clamping device 3 is a horizontal mold clamping device and includes the movable platen 31, the fixed platen 32 and the support 35. The molds 33 and 34 can be attached to or detached from the movable platen 31 and the fixed platen, respectively.

[0036] The support 35 is provided in the mold clamping device 3. Specific examples of the support 35 include a bearing, a roller, etc. The support 35 may be formed as a separate part, such as the bearing or the roller, or may be included in a portion of a part of the mold clamping device 3 in which the support 35 is provided. Its mounting location is at the in the mold clamping device 3 in Fig. 1A. However, the support 35 may also be provided on the movable clamping plate 31 (not shown). If the mold clamping device 3 includes a frame (not shown), the support 35 may also be provided on the frame.

[0037] In Fig. 1A, the support 35 is provided at two locations in a row of the supported portion 23 in the side view, which can be appropriately changed if necessary. When the support 35 is provided as described above, an entire space for installing the supported portion 23, which must cover the range in which the assembly stand 2 is movable, does not need to be provided in the mold clamping device 3, and thus, space saving of the mold clamping device 3 can be implemented. In particular, the dimensions of the fixed platen 32 do not need to be large when the support 35 is provided on the fixed platen 32, the dimensions of the movable platen 31 do not need to be large when the support 35 is provided on the movable platen 31, and the dimensions of the frame (not shown) do not need to be large when the support 35 is provided on the frame.Furthermore, when the support 35 is mounted on the movable platen 31 or the fixed platen 32, a frame need not be provided to support the work stand 2. When the support 35 is provided on the frame, a necessary length of the frame in the moving direction of the work stand 2 can be kept low because the support 35 is provided on the frame instead of providing the supported portion 23 in the moving direction.

[0038] When the rigidities of the attachment 21 and the base 22 are insufficient at the time of assembly work by means of a hoist with the assembly stand 2 installed in the support 35 provided in the mold clamping device 3, a position of the assembly stand 2 is unstable, and the work has a safety problem. However, the position of the assembly stand 2 is stabilized by the anchoring section described above, and safety is thus improved.

[0039] The assembly stand 2 is moved relative to the support 35 at the time of mold replacement in which a different mold is used, or during an operation related to the attached and detached portion of the clamping plate and the mold, such as the inspection of the connection between the mold and the clamping plate as described above, and to adjust a position to an injection hole at the time of driving the injection device 1. When the support 35 is provided on the fixed clamping plate 32 as shown in Fig. 1A, and the base 22 of the die rig 2 is raised to a retracted position where the base 22 protrudes to a side opposite the mold 34 of the fixed platen 32, the injection device 1 and the die rig 2 do not interfere with the working operation with respect to the attached and detached portions of the platen and the die at the time of the working operation. Meanwhile, at the time of driving (not shown), the base 22 of the die rig 2 is raised to a driving position where the die rig 2 protrudes to the mold 34 side of the fixed platen 32.

[0040] In addition, since the work stand 2 is made lighter and its footprint is kept small, even when the work stand 2 moves to the retreat position or drive position with the base member projecting, a lifting force (a force of lowering a portion where the base member 22 projects and lifting an opposite side thereof in Fig. 1A) rarely on a side opposite a protruding side. It is possible to employ a structure in which, even when the lifting force is generated, the supported section 23 can be forced by the support 35 to deal with the lifting force.

[0041] In the present example, the side surface of the base part protrusion portion 221 provided on the base part 22 is anchored to the side surface of the attachment part 21. However, an attachment part protrusion portion may also be provided on the side surface of the attachment part 21, and a lower surface of the attachment part protrusion portion may be anchored to the upper surface of the base part 22, thereby forming an anchoring portion. In contrast to the anchoring portion 24 in the vertical direction, as shown in Fig. 1C, in this case the anchoring portion 24 is in a horizontal direction, and accordingly a screw is provided in the vertical direction.

[0042] Next, the Fig. 2A, Fig. 2B and Fig. 2C, a description is given of a first embodiment of the injection molding apparatus incorporating the assembly stand of the invention. A description overlapping the above-described example is omitted.

[0043] As in Fig. 2A to Fig. 2C, the present embodiment is characterized in that, in addition to a base part projection part 221 provided on a base part 22, an attachment part projection portion 211 is provided on an attachment part 21. As shown in the Fig. As shown in FIGS. 2A to 2C, the base protrusion portion 221 provided on the base 22 is provided so as to protrude laterally from a side surface of the attachment 21 into a portion of the attachment 21 that comes into contact with the base 22 (i.e., a lower end of the attachment 21). An opening 27 is provided in the vertical direction in the attachment protrusion portion 221. The opening 27 is provided so that the base protrusion portion 221 provided on the base 22 can be inserted.

[0044] As in Fig. 2C, a through hole 213, into which a screw 25 is inserted, is provided in the attachment protrusion portion 211 on a side opposite to the attachment 21, with the opening 27 interposed therebetween. As also shown in Fig. As shown in FIG. 2C, a lower end of the attachment protrusion portion 211 comes into contact with a step portion 26 provided in the base protrusion portion. In this way, an anchoring portion 24 formed when a side surface of the base protrusion portion 221 comes into contact with and is anchored to the side surface of the attachment 21 is reinforced, and the stability of the work stand 2 is increased. The lower end of the attachment protrusion portion 211 may be configured to come into contact with an upper surface of the base 22. In this case, it is not necessary to provide such a step portion 26 in the base protrusion portion 221. The attachment protrusion portion 211 may be an integral part of the attachment 21, or may be a separate part from the attachment 21.

[0045] As in Fig. 2A to 2C, the base part protrusion portion 221 provided on the base part 22 is provided so as to protrude upward from a part of the base part 22 laterally from a portion of the base part 22 that comes into contact with the attachment part 21 on the upper surface of the base part 22. As shown in Fig. 2C, the step portion 26 is provided in the base part projection portion 221. A portion above the step portion 26 is inserted into the opening 27 of the attachment part projection portion 221. As shown in Fig. As shown in FIG. 2C, a screw hole 223, which engages a screw portion of the screw 25, is provided in a portion of the base portion projection portion 221 inserted into the opening of the attachment portion projection portion 211. The base portion projection portion 221 may be an integral portion of the base portion 22 or may be a separate part from the base portion 22.

[0046] As in Fig. 2C, the anchoring portion 24 is formed by inserting the screw 25 into the through hole 213 of the attachment protrusion portion 211 and screwing a screw portion of the screw 25 into the screw hole 223 of the base protrusion portion 221 while a side surface of a portion above the step portion 26 of the base protrusion portion 221 comes into contact with a side surface of the attachment protrusion portion 211 that contacts a side surface of the base protrusion portion 221 at an inside of the opening 27.

[0047] In Fig. 2B and Fig. 2C a space S ( Fig. 2C) between the opening 27 of the attachment protrusion portion 211 and the base protrusion portion 221 when the base protrusion portion 221 is inserted into the opening 27. However, the base protrusion portion 221 may engage with the opening 27 of the attachment protrusion portion 211 such that the clearance S is not generated. In this case, it is possible to further contribute to safety at the time of temporary assembly work until the tightening of the screw 25 when the attachment 21 is vertically arranged on the base 22 or the positioning of the attachment 21 with respect to the base 22 is completed.

[0048] Next, a description will be given of a second embodiment of the injection molding apparatus incorporating the assembly stand of the invention with reference to Fig. 3A, Fig. 3B and Fig. 3C. A description of the same configuration as that of the above-described example and the above-described first embodiment will be omitted.

[0049] As in Fig. 3A to Fig. 3C, in the present embodiment, a recess 28 which is open upward is provided in a base part protrusion portion 221, a downwardly extending insertion portion 29 is formed at a portion of an attachment part protrusion portion 211, and the recess 28 is inserted into the insertion portion 29. As also shown in Fig. 3C, an anchoring portion 24 is formed by connecting a through hole 224 provided in the base part protrusion portion 221 to a screw hole 291 provided in the insertion portion 29 of the attachment part protrusion portion 211 by means of a screw 25.

[0050] If in Fig. 3B and Fig. 3C, the insertion portion 29 of the attachment protrusion portion 211 is inserted into and anchored to the recess 28 of the base protrusion portion 221, then a gap S1 is created between the insertion portion 29 and the recess 28, and a gap S2 is created between a side surface of an attachment 21 and a side surface of the base protrusion portion 221 of the base 22. However, the connection may be performed without providing one or both of the gaps S1 and S2. As described above, in this case, it is possible to further contribute to safety at the time of temporary assembly work until the tightening of the screw 25 when the attachment 21 is vertically arranged on the base 22 or the positioning of the attachment 21 with respect to the base 22 is completed.Although a lower end of the insertion portion 29 of the attachment protrusion portion 211 is in contact with a bottom surface of the recess 28 of the base protrusion portion in . Fig. 3C, this configuration does not need to be adopted. Furthermore, although the base part projection portion 221 is formed due to the presence of the recess 28 in Fig. 3B is formed in a tubular shape with a rectangular cross section, the base part protrusion portion 221 may be provided in a channel shape with a U-shaped cross section. In this case, the insertion portion 29 of the attachment part protrusion portion 211 may not be formed in an inverted L-shape as in Fig. 3C shown.

[0051] In the present embodiment, a description was given of the vertical type of spraying device as the spraying device mounted on the mounting stand. However, the description can be applied when a mounting stand is adopted for a horizontal type of spraying device. LIST OF REFERENCE SYMBOLS 1 spray device 2 assembly stands 3 mold clamping device 21 Attachment 22 Base part 23 supported section 24 Anchoring section 25 screw 27 Opening 28 Deepening 29 Introductory section 31 movable clamping plate 32 fixed clamping plate 33 mold tool 34 mold tool 35 Support 211 Attachment projection section 212 screw hole 221 Base part projection section 222 through hole 223 screw hole 224 through hole 291 screw hole S space S1 space S2 space

Claims

[1] Assembly stand (2) for a spraying device (1), the assembly stand (2) comprising: a base part (22); an attachment part (21) which is arranged vertically on the base part (22) and to which the spray device (1) is attached; a base member protrusion portion (221) provided on an upper surface of the base member (22); an attachment protrusion portion (211) provided on a side surface of the attachment (21) around the base protrusion portion (221); and an anchoring portion (24) to which a side surface of the base part projection portion (221) is anchored to a side surface of the attachment part projection portion (211), wherein the assembly stand (2) is movable with respect to a support (35) which supports the base part (22). [2] Assembly stand (2) for a spraying device (1), the assembly stand (2) comprising: a base part (22); an attachment part (21) which is arranged vertically on the base part (22) and to which the spray device (1) is attached; an attachment protrusion portion (211) provided on a side surface of the attachment (21); a base part projection portion (221) provided on an upper surface of the base part (22) around the attachment part projection portion (211); and an anchoring portion (24) to which a side surface of the base part projection portion (221) is anchored to a side surface of the attachment part projection portion (211), wherein the assembly stand (2) is movable with respect to a support (35) which supports the base part (22). [3] The assembly stand (2) according to claim 1 or 2, wherein the attachment projecting portion (211) is engaged with the base projecting portion (221). [4] Assembly stand (2) according to one of claims 1 to 3, wherein the anchoring section (24) is anchored by a screw (25). [5] Injection molding device (1) comprising: the assembly stand (2) for the spraying device (1) according to one of claims 1 to 4; and a support (35) which supports the base part (22) of the assembly stand (2), wherein, along a direction in which the assembly stand (2) is movable, a supported portion (23) for the base part (22) of the assembly stand (2) is provided at a portion at which the base part (22) is supported by the support (35), and the support (35) is provided for a mold clamping device (3). [6] Injection molding device (1) according to claim 5, wherein the support (35) is provided on a frame of the mold clamping device (3). [7] Injection molding device (1) according to claim 5, wherein the support (35) is provided on a fixed clamping plate (32) of the mold clamping device (3). [8] Injection molding device (1) according to claim 5, wherein the support (35) is provided on a movable clamping plate (31) of the mold clamping device (3).

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