Injection molding machine, frame, and bracing
The frame with removable braces in injection molding machines addresses access and rigidity issues by allowing easy detachment of braces, improving usability and reducing deformation.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SUMITOMO HEAVY IND LTD
- Filing Date
- 2022-12-20
- Publication Date
- 2026-05-26
Smart Images
Figure 0007865697000001 
Figure 0007865697000002 
Figure 0007865697000003
Abstract
Description
Technical Field
[0001] The present invention relates to an injection molding machine, a mounting base, and ribs.
Background Art
[0002] The mounting base constituting the injection molding machine is provided with a space for housing various devices such as a control device and an opening for allowing an operator to physically access the various devices housed in the space. For example, Patent Document 1 describes a structure of a mounting base that enables various devices to be housed by removably joining a beam member on the mold clamping side.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In an injection molding machine, when the mold opens and closes in the horizontal direction, the inertial force generated in the opening and closing direction is transmitted to the mounting base. At this time, if an opening is provided in the mounting base that opens in a direction orthogonal to the opening and closing direction of the mold, the opening will undergo shear deformation, reducing the rigidity of the mounting base. On the other hand, in order to prevent the shear deformation of the opening, a reinforcing member such as a rib can be installed in the opening, but the presence of the reinforcing member installed in the opening hinders physical access to the various devices housed in the space inside the opening.
[0005] An object of the present invention is to facilitate physical access to various devices housed inside the mounting base and reduce deformation of the mounting base due to inertial forces generated in the opening and closing direction of the mold.
Means for Solving the Problems
[0006] The present invention, completed with this objective in mind, is an injection molding machine comprising a mold clamping device for opening and closing a mold horizontally, an injection device for injecting molten material, and a frame for supporting the mold clamping device and the injection device, wherein the frame has a rectangular opening that opens in a direction perpendicular to the opening and closing direction of the mold, and removable or separable braces arranged on one or more diagonals of the opening. Here, the bracing may be detachably or rotatably joined to reinforcing members provided at the diagonal corners of the opening. Furthermore, the brace may be divided into a first member joined to one of the reinforcing members provided diagonally across the opening, and a second member joined to the other reinforcing member. Furthermore, the first member and the second member may each consist of a main body joined to the reinforcing member and a sliding part that slides longitudinally along the main body. Furthermore, the main body may rotate around the joint with the reinforcing member as the axis of rotation. Furthermore, two of the aforementioned braces may be placed in one of the aforementioned openings. Furthermore, among the reinforcing members provided at each of the diagonal corners of the opening, a fixing member for fixing the column to the installation surface may be attached to the column to which the reinforcing member located on the lower side in the vertical direction is joined. Furthermore, among the multiple columns constituting the frame, the column closest to the fixing plate of the clamping device may be joined to the upper of the reinforcing members provided at each of the diagonal corners of the opening. Furthermore, the present invention relates to a frame that supports a mold clamping device for opening and closing a mold horizontally and an injection device for injecting molten material, characterized in that a detachable or separable brace is arranged on the diagonal of a rectangular opening that opens in a direction perpendicular to the opening and closing direction of the mold. Furthermore, the present invention provides a detachable or separable brace positioned diagonally across a rectangular opening in a frame that supports a clamping device for opening and closing a mold horizontally and an injection device for injecting molten material. [Effects of the Invention]
[0007] According to the present invention, physical access to various devices housed inside the frame can be facilitated, and deformation of the frame due to inertial forces generated in the opening and closing direction of the mold can be reduced. [Brief explanation of the drawing]
[0008] [Figure 1] (A) is a front view showing an example of the configuration of an injection molding machine before the bracing to which this embodiment is applied is installed. (B) is a cross-sectional view of the IB-IB section showing the inside of the frame of (A). [Figure 2] (A) is a cross-sectional view of section IIA-IIA, showing a specific example of the joint between the column and beam that constitute the opening in Figure 1(A). (B) is a diagram showing an example of the external configuration of the gusset. [Figure 3] (A) is a front view showing an example of the configuration of an injection molding machine after the bracing to which this embodiment is applied has been installed. (B) is an enlarged view of the area enclosed by frame IIIB in (A). [Figure 4] (A) is a cross-sectional view of the IVA-IVA section showing the brace in Figure 3(B) attached to the gusset. (B) is a perspective view showing the brace in Figure 3(B) attached to the gusset. [Figure 5] (A) is a front view showing an example of the external configuration of a brace according to the second embodiment. (B) is a side view showing an example of the external configuration of the brace in (A). (C) is a diagram showing the brace in (A) in a divided state. (D) is a diagram showing the sliding part of (C) housed in the main body. [Figure 6] (A) is a front view showing an example of the external configuration of a brace according to the third embodiment. (B) is a diagram showing a specific example of a brace rotatably joined to a gusset. [Figure 7](A) is a diagram showing an example of a configuration in which fixing members are placed to fix the height of the frame columns relative to the mounting surface of the injection molding machine. (B) is a diagram showing a specific example in which adjustable fixing members are placed at the bottom of the part where the column and beam are joined. [Modes for carrying out the invention]
[0009] Embodiments of the present invention will be described in detail below with reference to the attached drawings. <First Embodiment> (Configuration of an injection molding machine) Figure 1(A) is a front view showing an example of the configuration of the injection molding machine 1 before the bracing to which this embodiment is applied is installed. Figure 1(B) is a cross-sectional view of the IB-IB section showing the inside of the frame 13 in Figure 1(A). As shown in Figures 1(A) and (B), the injection molding machine 1 consists of a mold clamping device 10, an injection device 11, control devices 12-1 to 12-3, and a frame 13.
[0010] The clamping device 10 shown in Figure 1(A) is a device that opens and closes the mold 100, and clamps it to prevent the high-pressure molten material (e.g., molten resin) injected into the mold 100 from pushing the mold 100 open. The mold 100 is attached to a fixed platen 101 and a movable platen 102, and opens and closes horizontally and in the longitudinal direction of the injection molding machine 1 (hereinafter simply referred to as the "longitudinal direction") in conjunction with the movement of the movable platen 102. That is, the mold 100 opens when the movable platen 102 moves toward the first side in the longitudinal direction, and the mold 100 closes when the movable platen 102 moves toward the second side in the longitudinal direction.
[0011] The injection molding device 11 is a device that injects molten material (for example, molten resin). The control devices 12-1 to 12-3 are located inside the frame 13 and control the clamping device 10 and the injection molding device 11. Hereafter, unless it is necessary to explain the control devices 12-1 to 12-3 individually, they will be collectively referred to as "control device 12".
[0012] The pedestal 13 is a structure composed of a plurality of columns and beams, and includes columns 30 to 36 and beams 40 to 42. The pedestal 13 supports the mold clamping device 10 and the injection device 11 arranged on the upper side in the vertical direction (hereinafter simply referred to as the "upper side") on the upper surface, and houses the control device 12 inside. Openings 20 to 24 are formed in the pedestal 13 that open in a direction orthogonal to the longitudinal direction.
[0013] Among the openings 20 to 24, the opening 20 is a rectangular opening formed by the column 30, the column 31, the beam 40, and the beam 41, and opens from the inside of the pedestal 13 toward the first side in the horizontal direction and the short side direction of the injection molding machine 1 (hereinafter simply referred to as the "short side direction"). The opening 21 is a rectangular opening formed by the column 31, the column 32, the beam 40, and the beam 41, and opens toward the first side as viewed from the inside of the pedestal 13 in the short side direction. The opening 22 is a rectangular opening formed by the column 32, the column 33, the beam 40, and the beam 41, and opens toward the first side as viewed from the inside of the pedestal 13 in the short side direction. Hereinafter, the description of "the first side (or the second side) in the short side direction" is used in the meaning of "the first side (or the second side) as viewed from the inside of the pedestal 13".
[0014] As shown in FIGS. 1(A) and 1(B), the openings 23 and 24 are openings that open toward the second side in the short side direction. At least the columns 34 to 36 and the beam 42 are arranged on the second side in the short side direction, and the openings 23 and 24 are formed. Therefore, physical access to the control devices 12-1 to 12-3 is also possible from the openings 23 and 24.
[0015] As shown in FIGS. 1(A) and 1(B), at the portion where the column 31 and the beam 41 forming the opening 21 are joined, a gusset 50 for reinforcing the column 31 and the beam 41 and joining the cross brace 60 to be described later is joined by welding. A "gusset" is an example of a supply member and is a plate material joined as a member for reinforcing a portion where components of a housing are connected. Also, a gusset 51 is joined by welding at the portion where the column 32 and the beam 40 forming the opening 21 are joined.
[0016] Furthermore, gussets 52 and 53 are welded to the joints between the column 32 and beam 40 that form the opening 22, and to the joints between the column 33 and beam 41, respectively. Gussets 54 and 55 are also welded to the opening 23, and gussets 56 and 57 are also welded to the opening 24. Gussets 50 to 57 may already be welded in place when the injection molding machine 1 is brought into the factory where it will be operated.
[0017] Figure 2(A) is a cross-sectional view of section IIA-IIA, showing a specific example of the joint between the column and beam that constitute the opening in Figure 1(A). In the section where the column 32 and beam 40 are joined to form the openings 21 and 22 shown in Figure 1(A) above, the end of the column 32 and the beam 40 are joined by welding, as shown in Figure 2(A). The weld bead 135 formed by this welding may interfere with the respective corners of the gussets 51 and 52 shown in Figures 1(A) and (B) when they are joined to the column 32 and beam 40. The same applies to gussets joined to other sections.
[0018] Figure 2(B) is a front view showing an example of the external configuration of the gusset. Figure 2(B) shows a front view of a gusset 52, which is welded to the joint between a column 32 and a beam 40, as an example of a gusset. The gusset 52 is a roughly rectangular metal plate having a notch 510 and two holes 500, and detachably connects one end of a brace 61, which will be described later. The notch 510 is provided to avoid interference with the weld bead 135. The notch 510 is provided in advance at each corner of the gussets 50 to 57 that may interfere with the weld bead 135. The two holes 500 are for detachably connecting one end of the brace 61, which will be described later, and are used, for example, as holes for passing bolts.
[0019] Figure 3(A) is a front view showing an example of the configuration of the injection molding machine 1 after the braces 60 and 61 to which this embodiment are applied have been installed. Figure 3(B) is an enlarged view of the area enclosed by frame IIIB in Figure 3(A). Note that in Figure 3(A), the notches provided in each of the gussets 50 to 53 are omitted, but in reality, they exist as shown in Figure 3(B).
[0020] A brace 60 is attached to the opening 21 of the frame 13 shown in Figure 3(A). One end of the brace 60 is joined to the gusset 50 with bolts, and the other end is joined to the gusset 51 with bolts, etc. As a result, when the brace 60 is attached to the gussets 50 and 51, the first end in the longitudinal direction is located on the lower side in the vertical direction, and the second end in the longitudinal direction is located on the upper side in the vertical direction.
[0021] Furthermore, a brace 61 is attached to the opening 22 of the frame 13 shown in Figure 3(A). One end of the brace 61 is joined to the gusset 52, and the other end is joined to the gusset 53. As a result, when the brace 61 is attached to the gussets 52 and 53, the first end in the longitudinal direction is located on the upper side in the vertical direction, and the second end in the longitudinal direction is located on the lower side in the vertical direction.
[0022] As shown in Figure 3(B), gussets 52 and 53, which are joined by welding, are positioned at the joints between column 32 and beam 40, and between column 33 and beam 41, respectively. The first longitudinal end of the brace 61 is joined to the gusset 52 in a manner that allows for attachment and detachment via two holes 600. Specifically, it is joined in a manner that allows for attachment and detachment via the two holes 600 and two holes 500 in the gusset 52 (see Figure 2(B)), for example, by bolts and nuts. The second longitudinal end of the brace 61 is also joined to the gusset 53 in a manner that allows for attachment and detachment via two holes 600. Specifically, it is joined in a manner that allows for attachment and detachment via the two holes 600 and two holes (not shown) in the gusset 53, for example, by bolts and nuts.
[0023] Although not shown in the diagram, the first end and the second end of the brace 60 in the longitudinal direction in Figure 3(A) are also joined to the gussets 50 and 51 respectively via two holes in a manner that allows them to be detachably attached.
[0024] Figure 4(A) is a cross-sectional view of the IVA-IVA section showing the brace 61 from Figure 3(B) attached to the gusset 52. Figure 4(B) is a perspective view showing the brace 61 from Figure 3(B) attached to the gusset 52. The column 32 and beam 40 to which the gusset 52 is joined are rod-shaped members with a rectangular cross-section, made of steel. A weld bead 135 is formed at the joint between the column 32 and the beam 40. The brace 61 is made of angle steel. However, the brace 61 is not limited to angle steel and may be made of other steel materials such as H-beams, channel steel, or square pipes.
[0025] One end of the brace 61 is joined to the gusset 52 via two bolts 65 and nuts 66. The gusset 52 is joined to the second side in the shorter direction from the center of each of the column 32 and beam 40. This creates a space from the position where the gusset 52 is joined toward the first side in the shorter direction, into which the brace 61 is positioned.
[0026] With the injection molding machine 1 having the above configuration, for example, when the clamping device 10 is not in operation, the braces can be removed as shown in Figures 1(A) and (B) above. This makes it easier for an operator to physically access the control devices 12-1 and 12-2 located inside the opening 21 of the frame 13, and the control device 12-3 located inside the opening 22. On the other hand, when the clamping device 10 is in operation, the braces 60 and 61 can be attached as shown in Figures 3(A) and (B) above. This improves the rigidity of the frame 13. Furthermore, the rigidity of the frame 13 can be further improved by attaching braces to each of the openings 23 and 24 that open toward the second side in the shorter direction.
[0027] <Second Embodiment> In the first embodiment described above, for example, as shown in Figures 3(A) and (B), the diagonal braces 60 and 61 attached to the respective diagonals of the openings 21 and 22 of the frame 13 are each single rods. Therefore, in order for a worker to physically access the control devices 12-1 to 12-3 located inside the frame 13 from the openings 21 and 22, it is necessary to remove the diagonal brace 60 from the gussets 50 and 51, and the diagonal brace 61 from the gussets 52 and 53, and so on.
[0028] To remove the brace 60 from the gussets 50 and 51, it is necessary to remove a total of four sets of bolt 65 and nut 66 combinations, as shown in Figures 4(A) and (B) above. In contrast, the brace according to the second embodiment allows workers to perform work in the opening while it remains attached to the gusset. The second embodiment will now be described, focusing on the differences from the first embodiment.
[0029] Figure 5(A) is a front view showing an example of the external configuration of the brace 70 according to the second embodiment. Figure 5(B) is a side view showing an example of the external configuration of the brace 70 in Figure 5(A). The brace 70 shown in Figure 5(A) has main body parts 71 and 72, sliding parts 73 and 74, and a connecting member 76. The brace 70 can be separated by attaching or detaching the connecting member 76.
[0030] The main body portion 71 is provided with two holes 75 for joining to a gusset, for example. The main body portion 72 is also provided with two holes 75 for joining to a gusset. The two holes 75 in the main body portion 71 correspond to the two holes 600 at the second end in the longitudinal direction of the brace 61 shown in Figure 3(B) above. The two holes 75 in the main body portion 72 correspond to the two holes 600 at the first end in the longitudinal direction of the brace 61 shown in Figure 3(B) above.
[0031] The sliding part 73 is a member that slides along the main body 71 in the direction of the centerline 1000. The sliding part 74 is a member that slides along the main body 72 in the direction of the centerline 1000. The sliding parts 73 and 74 are connected by a connecting member 76. Specifically, the sliding parts 73 and 74 and the connecting member 76 are joined through four holes 77 provided in the connecting member 76. The joining of the sliding parts 73 and 74 and the connecting member 76 is done, for example, by a combination of bolts and nuts.
[0032] Figure 5(C) shows the brace 70 in Figure 5(A) in a divided state. Figure 5(D) shows the sliding parts 73 and 74 of Figure 5(C) housed in the main body parts 71 and 72, respectively. When the connecting member 76 shown in Figure 5(A), which was joined to the sliding parts 73 and 74, is removed, the brace 70 is divided into a combination of the main body 71 and the sliding part 73, and a combination of the main body 72 and the sliding part 74, as shown in Figure 5(C). Here, the sliding part 73 can be slid to be stored in the direction of the hole 75 in the main body 71, as shown in Figure 5(D). Similarly, the sliding part 74 can be slid to be stored in the direction of the hole 75 in the main body 72.
[0033] Thus, the brace 70 shown in Figure 5(A) can be divided and the sliding parts 73 and 74 can be housed inside, as shown in Figures 5(C) and (D). For example, if one end of the brace 70 is joined to the gusset 52 shown in Figure 3(B) and the other end is joined to the gusset 53, the connecting member 76 can be removed and the sliding parts 73 and 74 housed inside, creating space in the opening 22. This makes it easier for workers to work in the opening 22.
[0034] <Third Embodiment> In the second embodiment described above, for example, as shown in Figures 5(A) to (D), the attachment and detachment of the connecting member 76 that connects the sliding parts 73 and 74, and the storage of the sliding parts 73 and 74 facilitate work by an operator in the opening through the space formed between the sliding parts 73 and 74. However, since the main body 71 with the sliding part 73 stored and the main body 72 with the sliding part 74 stored remain in the opening, this may hinder the operator's smooth work. The third embodiment will now be described, focusing on the differences from the first and second embodiments.
[0035] Figure 6(A) is a front view showing an example of the external configuration of the brace 80 according to the third embodiment. Figure 6(B) shows a specific example of a brace rotatably joined to gussets 52 and 53. As shown in Figure 6(A), the brace 80 has main body parts 81 and 82 and sliding parts 83 and 84. The brace 80 is a brace that can be separated by attaching and detaching a connecting member (for example, the connecting member 76 in Figure 5(A)), similar to the brace 70 in Figures 5(A) to (D) described above.
[0036] The main body portion 81 is provided with a hole 85 for rotatably joining to the gusset. The main body portion 82 is also provided with a hole 85 for rotatably joining to the gusset. With a brace 80 configured in this way, for example, as shown in Figure 6(B), the main body portion 81 with the sliding portion 83 housed inside can be rotated towards the beam 41 with the joint portion 90 with the gusset 53 as the axis of rotation. The main body portion 82 with the sliding portion 84 housed inside can be rotated downwards in the vertical direction with the joint portion 90 with the gusset 52 as the axis of rotation and hung down. This allows the space of the opening 22 to be widened.
[0037] <Other> (Arrangement of fixing members and gussets) Figure 7(A) shows an example of a state in which fixing members 200 that fix the height of the columns of the frame 13 relative to the installation surface 300 of the injection molding machine 1 are arranged. When installing an injection molding machine 1, in order to ensure the stability and levelness of the injection molding machine 1, fixing members 200 such as legs may be used to fix the height of the columns of the frame 13 relative to the installation surface 300 (for example, the floor) of the injection molding machine 1. The fixing members 200 may be of a fixed length or a length that can be adjusted, and at least one of these may be used. Examples of fixing members 200 include leveling pads and adjuster feet.
[0038] The fixing member 200 is positioned between the injection molding machine 1 and the installation surface 300 so as to be in contact with both. Specifically, the fixing member 200 is positioned below the beam 41 of the frame 13 of the injection molding machine 1 so as to be in contact with the installation surface 300. Of the fixing members 200, those whose length cannot be adjusted can have their height adjusted by changing their thickness or the number of members. In contrast, the fixing members 200 whose length can be adjusted can have their height adjusted by changing the length of the fixing member 200. For example, Figure 7(B) shows a specific example in which a fixing member 200 whose length can be adjusted is positioned below the part where the column 33 and the beam 41 are joined. When a fixing member 200 whose length can be adjusted is positioned, a hole 411 is provided for fixing the fixing member 200 to the beam 41.
[0039] The type and number of fixing members 200 to be placed are determined according to the application and installation environment of the injection molding machine 1. For example, multiple fixing members 200 that cannot be adjusted in length may be placed, or multiple fixing members 200 that can be adjusted in length may be placed. In addition, a combination of fixing members 200 that cannot be adjusted in length and fixing members 200 that can be adjusted in length may be placed. For example, if multiple fixing members 200 that cannot be adjusted in length are placed, depending on the distance between the frame 13 and the installation surface 300 and the length of the fixing members 200, a part of the frame 13 may move away from the installation surface against the intention. In such cases, by placing not only fixing members 200 that cannot be adjusted in length but also fixing members 200 that can be adjusted in length, it is possible to adjust so that a part of the frame 13 does not move away from the installation surface against the intention.
[0040] Furthermore, if the installation surface of the injection molding machine 1 is not horizontal, multiple fixing members 200 may be placed to maintain the horizontality of the injection molding machine 1. In this case, for example, if fixing members 200 are placed in four locations, it is possible to place fixing members 200 with fixed lengths that cannot be adjusted in one or two locations, and fixing members 200 with adjustable lengths in the remaining locations.
[0041] Furthermore, in injection molding machines 1 that may be moved to other locations using casters or the like, multiple adjustable-length fixing members 200 may be provided. In this case, when moving the injection molding machine 1 using casters or the like, the length of the fixing members 200 can be shortened to separate a portion of the frame 13 from the installation surface 300.
[0042] Ideally, the fixing members 200 should be placed at the bottom of all the columns of the frame 13. However, due to cost considerations, they are generally placed at the bottom of only some of the columns. Thus, because there may be limitations on the number of fixing members 200 that can be placed, they need to be positioned in a location that can efficiently improve the stability and horizontality of the injection molding machine 1. For example, by placing the fixing members 200 at the bottom of the joint between the column and beam to which the gusset described above is attached, the stability and horizontality of the injection molding machine 1 can be efficiently improved.
[0043] For example, in the opening 21 of Figure 7(A), a gusset 50 is attached to the joint between column 31 and beam 41, and a gusset 51 is attached to the joint between column 32 and beam 40. In the opening 22, a gusset 52 is attached to the joint between column 32 and beam 40, and a gusset 53 is attached to the joint between column 33 and beam 41. In this case, it is preferable that the fixing member 200 is positioned at the lower part of the joint between column 31 and beam 41, and at the lower part of the joint between column 33 and beam 41.
[0044] Column 31 is joined to gusset 50, which is located on the lower side in the vertical direction, of the gussets 50 and 51 that are positioned diagonally across the opening 21. Similarly, Column 33 is joined to gusset 53, which is located on the lower side in the vertical direction, of the gussets 52 and 53 that are positioned diagonally across the opening 22. In this case, it is preferable that the fixing member 200 be positioned at the bottom of the portion where each of the columns 31 and 33, where the gusset is located on the lower side in the vertical direction, is joined to the beam 41. In other words, it is preferable that one of the pair of gussets is pre-joined to the lower end of the column where the fixing member 200 is to be placed.
[0045] The deformation of the support frame 13 due to the inertial force generated by the opening and closing of the mold 100 of the clamping device 10 that constitutes the injection molding machine 1 differs depending on the position of the support frame 13. For example, the position where the fixed platen 101 of the clamping device 10 and the support frame 13 are in contact is greatly affected by the inertial force generated by the opening and closing of the mold 100. For this reason, it is preferable to place a gusset at the upper end of the column closest to the position where the fixed platen 101 and the support frame 13 are in contact. For example, in Figure 7(A), the column closest to the position where the fixed platen 101 and the support frame 13 are in contact is column 31, but the gusset 50 is placed at the lower end of column 31, not the upper end.
[0046] Therefore, as shown in Figure 7(A), by placing the gusset 50 at the position indicated by the dashed line 400 where the column 31 and beam 40 are joined, the gusset 50 can be placed at the upper end of the column 31 closest to the point where the fixed platen 101 and the frame 13 are in contact. As a result, it becomes possible to further reduce the deformation of the frame 13 due to the inertial force generated by the opening and closing of the mold 100. In this case, a gusset 51 opposite to the gusset 50 may be placed at the position indicated by the dashed line 401 where the column 32 and beam 41 are joined, and further, a fixing member 200 may be placed below the point where the column 32 and beam 41 are joined, to which the lower end of the gusset 51 is joined. This makes it possible to efficiently improve the stability and horizontality of the injection molding machine 1.
[0047] (Gassets' play) For example, as shown in the example in Figure 3(B) above, the brace 61 according to the first embodiment is detachable from the gussets 52 and 53 in order to allow physical access to the opening 22 by a worker. Here, the attachment and detachment of the brace 61 to the gussets 52 and 53 is achieved, for example, by a combination of bolts and nuts through the two holes 600 at each end of the brace 61 and the two holes in the gussets 52 and 53 (for example, the two holes 500 in Figure 2(B)).
[0048] However, if there is no play in the two holes 600 of the brace 61 or the two holes each of the gussets 52 and 53, smooth attachment and detachment may be hindered. For this reason, play may be provided in at least one of the two holes 600 at both ends of the brace 61 and the two holes each of the gussets 52 and 53. For example, elongated holes that include play may be provided.
[0049] (Number of diagonal braces) For example, in Figure 3(A) above, each of the openings 21 and 22 is fitted with a diagonal brace 60 and 61, respectively, but the number of diagonal braces per opening is not limited to one. For example, there may be two diagonal braces per opening. In this case, since the two diagonal braces provided in one opening will intersect, the number of gussets provided in one opening will be two sets (four). In addition, the position where the gussets are joined is designed to avoid interference between the intersecting diagonal braces. For example, one set of the two sets of gussets joined in one opening may be joined closer to the first side in the short direction, and the remaining set may be joined closer to the second side in the short direction. Alternatively, interference may be prevented by changing the shape or orientation of the diagonal braces without designing the position where the gussets are joined.
[0050] In summary, the injection molding machine, frame, and brace to which the present invention applies only need to have the following configuration, and various embodiments can be adopted. In other words, the injection molding machine 1 to which the present invention is applied comprises a clamping device 10 for opening and closing a mold 100 in the horizontal direction, an injection device 11 for injecting a molten material (for example, molten resin), and a frame 13 for supporting the clamping device 10 and the injection device 11, wherein the frame 13 has rectangular openings 21 and 22 that open in a direction perpendicular to the opening and closing direction of the mold 100, and removable or separable braces 60 and 61 arranged on one or more diagonals of the openings 21 and 22. As a result, the braces 60 and 61 positioned in the openings 21 and 22 of the frame 13 are detachable or separable, thereby facilitating physical access to various devices (e.g., control devices 12-1 to 12-3) housed inside the frame 13, and reducing deformation of the frame 13 due to inertial forces generated in the opening and closing direction of the mold 100.
[0051] Here, the brace 61 may be detachably or rotatably joined to reinforcing members (for example, gussets 52 and 53) provided diagonally across the opening 22. As a result, the brace 61 is detachably or rotatably joined to the reinforcing member, making it easier to physically access the various devices housed inside the frame 13 by removing or separating and rotating the brace 61.
[0052] Furthermore, the brace 70 may be divided into a first member (e.g., a main body portion 72 and a sliding portion 74) joined to one of the reinforcing members (e.g., gussets 52) provided diagonally across the opening 22, and a second member (e.g., a main body portion 71 and a sliding portion 73) joined to the other reinforcing member (e.g., gusset 53). As a result, the reinforcing members provided diagonally across the opening 22 are divided into a first member joined to one reinforcing member and a second member joined to the other reinforcing member, allowing physical access to various devices from the opening 22 without removing the brace 70 from the reinforcing members.
[0053] Furthermore, the first and second members may each consist of main body portions 71 and 72 joined to reinforcing members (for example, gussets 52 and 53) and sliding portions 73 and 74 that slide longitudinally along the main body portions 71 and 72. As a result, the first and second members are composed of main body portions 71 and 72 and sliding portions 73 and 74 that slide longitudinally along the main body portions 71 and 72, so that sliding portions 73 and 74 makes it easy to access various devices from the opening 22.
[0054] Furthermore, the main body portions 81 and 82 may rotate around the joint portion 90 with the reinforcing member (for example, gussets 52 and 53) as the axis of rotation. As a result, the main bodies 81 and 82 of the first and second members rotate around the joint 90 with the reinforcing member as the axis of rotation, making it easy to physically access various devices through the opening 22 without removing the first and second members from the reinforcing member.
[0055] Additionally, two diagonal braces may be placed in a single opening. As a result, two diagonal braces are placed in each opening, further reducing the deformation of the support frame 13 due to the inertial force generated in the opening and closing direction of the mold 100.
[0056] Furthermore, a fixing member 200 for fixing the column 31 to the installation surface may be attached to the column 31 to which the reinforcing member located on the lower side in the vertical direction (e.g., gusset 50) of the reinforcing members (e.g., gussets 50 and 51) provided on each of the diagonals of the opening 21 is joined. As a result, since the fixing member 200 for fixing the column 31 to the installation surface is attached to the column 31 to which the reinforcing member located on the lower side in the vertical direction is joined among the reinforcing members provided on each diagonal of the opening 21, the deformation of the frame 13 due to the inertial force generated in the opening and closing direction of the mold 100 can be further reduced.
[0057] Furthermore, among the multiple columns constituting the frame 13, the column 31 closest to the fixing plate 101 of the clamping device 10 may have the reinforcing member located on the upper side in the vertical direction (e.g., gusset 51) of the reinforcing members (e.g., gussets 50 and 51) provided on each of the diagonals of the opening 21 joined to the column 31 closest to the fixing plate 101 of the clamping device 10. As a result, among the multiple columns constituting the frame 13, the column 31 closest to the fixing platen 101 of the clamping device 10 is joined to the upper reinforcing member located on the vertical side of the reinforcing members provided on each diagonal of the opening 21. This further reduces the deformation of the frame 13 caused by the inertial force generated by the opening and closing of the mold 100.
[0058] Furthermore, the present invention relates to a frame 13 that supports a clamping device 10 for opening and closing a mold 100 horizontally and an injection device 11 for injecting molten material, characterized in that detachable or separable braces 60 and 61 are arranged on the diagonals of rectangular openings 21 and 22 that open in a direction perpendicular to the opening and closing direction of the mold 100. As a result, the braces 60 and 61 positioned in the openings 21 and 22 of the frame 13 are detachable or separable, thereby facilitating physical access to the various devices housed inside the frame 13 and reducing deformation of the frame 13 due to inertial forces generated in the opening and closing direction of the mold 100.
[0059] Furthermore, the present invention relates to removable or separable braces 60 and 61 positioned diagonally across rectangular openings 21 and 22 provided in a frame 13 that supports a clamping device 10 for opening and closing a mold 100 horizontally and an injection device 11 for injecting molten material. As a result, the braces 60 and 61 positioned in the opening of the frame 13 are detachable or separable, thereby facilitating physical access to the various devices housed inside the frame 13, and reducing deformation of the frame 13 due to inertial forces generated in the opening and closing direction of the mold 100.
[0060] [Other embodiments] As described above, the embodiments of the present invention have been explained. However, the present invention is not limited to the above-described embodiments. Also, the effects of the present invention are not limited to those described in the above embodiments. For example, the external configuration of the injection molding machine 1 shown in FIGS. 1(A) and 3(A), the layout of the control devices 12-1 to 12-3 shown in FIG. 1(B), the mode of joining the column 32 and the beam 40 shown in FIG. 2(A), the mode of the gusset 52 shown in FIG. 2(B), the attachment modes of the cross ribs 60 and 61 shown in FIGS. 3(A) and (B), FIGS. 4(A) and (B), the mode of the cross rib 70 shown in FIGS. 5(A) to (D), the mode of the cross rib 80 shown in FIG. 6(A), and the attachment mode of the cross rib shown in FIG. 6(B) are all merely examples for achieving the object of the present invention and are not particularly limited.
[0061] For example, in the mode of joining the column 32 and the beam 40 shown in FIG. 2(A), as an example when the column 32 is welded to the beam 40, the end of the column 32 is welded to the beam 40 without any remainder. As a result, the cross-sectional shape of the weld bead 135 is in the shape of a "square". However, the cross-sectional shape of the weld bead 135 is not limited to the shape of a "C", and it takes various forms according to the mode of the column 32 (for example, cross-sectional shape, dimensions, etc.). For example, when the column 32 is a C-shaped steel, the cross-section of the weld bead is in the shape of a "U". Also, when the column 32 is an H-shaped steel, the cross-section of the weld bead is in the shape of an "H".
[0062] Also, for example, although the shape of the notch portion 510 of the gusset 52 shown in FIG. 2(B) is linear, it is not limited to this. For example, it may be other shapes such as an arc shape.
[0063] Also, in FIG. 1(B), the openings 21 and 22 that open toward the first side in the short side direction and the openings 23 and 24 that open toward the second side in the short side direction are shown, but it is not limited to this. For example, a column and a beam may be provided between the beams 41 and 42 in FIG. 1(B) so that gussets and cross ribs can be installed. Thereby, for example, while improving the rigidity of a gantry with a large size where many columns and beams are installed, the work in the space inside the gantry can be facilitated.
Explanation of Reference Numerals
[0064] 1...Injection molding machine, 10...Clamping device, 11...Injection device, 12...Control device, 13...Frame, 100...Mold, 101...Fixed platen, 102...Movable platen, 30 to 36...Columns, 40, 41, 42...Beams, 50, 51, 52, 53, 54, 55, 56, 57...Gussets, 60, 61, 70, 80...Braces, 200...Fixing member
Claims
1. In an injection molding machine comprising a mold clamping device for opening and closing a mold horizontally, an injection device for injecting molten material, and a frame for supporting the mold clamping device and the injection device, The frame comprises a rectangular opening perpendicular to the opening and closing direction of the mold, and removable or separable braces arranged on one or more diagonals of the opening. An injection molding machine characterized by having [a certain feature].
2. The bracing is characterized in that it is detachably or rotatably joined to reinforcing members provided at the diagonal corners of the opening, The injection molding machine according to claim 1.
3. The brace is characterized in that it is divided into a first member joined to one of the reinforcing members provided diagonally across the opening, and a second member joined to the other reinforcing member. The injection molding machine according to claim 2.
4. The first member and the second member are characterized by each being composed of a main body joined to the reinforcing member and a sliding part that slides longitudinally along the main body, The injection molding machine according to claim 3.
5. The first member and the second member are characterized in that they rotate around the joint with the reinforcing member as the axis of rotation. The injection molding machine according to claim 3 or 4.
6. The bracing is characterized in that two braces are arranged in one of the openings. The injection molding machine according to claim 1.
7. A fixing member for securing the column to the installation surface is attached to the column to which the reinforcing member located on the lower side in the vertical direction is joined, among the reinforcing members provided at each of the diagonal corners of the aforementioned opening. The injection molding machine according to claim 2.
8. The frame is characterized in that, among the multiple columns constituting the frame, the column closest to the fixing plate of the clamping device is joined to the reinforcing member located on the upper side in the vertical direction, among the reinforcing members provided on each of the diagonal corners of the opening. The injection molding machine according to claim 2.
9. In a frame that supports a mold clamping device for opening and closing a mold horizontally and an injection device for injecting molten material, A frame characterized in that removable or separable braces are arranged on the diagonals of a rectangular opening that opens in a direction perpendicular to the opening and closing direction of the mold.
10. A removable or separable brace is positioned diagonally across a rectangular opening in a frame that supports a clamping device for opening and closing a mold horizontally and an injection device for injecting molten material.