forming machine

Abstract

To provide a molding machine by which work efficiency of an operator is improved.SOLUTION: A molding machine comprises: a die-clamping device for opening / closing and clamping a die; an injection device for injecting a mold material into the die, that is movable in a direction of being contacted / separated to / from the die-clamping device in a state of being brought into contact with the die-clamping device; and a base for supporting the injection device on one side in a long-length direction, and supporting the die-clamping device on the other side in the long-length direction among the long-length direction and a short-length direction that are orthogonal to each other in a horizontal direction. The base comprises a bottom plate, a pair of vertical plates erected to the bottom plate at a position of being separated from each other in the short-length direction, and a top plate supported at an upper portion of the pair of vertical plates. Length of the top plate in the short length direction is longer than an interval between the pair of vertical plates. At a position of the injection device in the long-length direction, a notch is formed onto the top plate at an end in the short-length direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a molding machine that injects a molding material into a mold to form a molded product. [Background technology]

[0002] Conventionally, molding machines that inject molding material (e.g., plasticized resin, molten metal) into a mold to form a molded product have been known. Such molding machines include, for example, a mold clamping device that opens, closes, and clamps the mold, an injection device that injects the molding material into the clamped mold, and a base that supports the mold clamping device and the injection device.

[0003] Patent Documents 1 and 2 disclose techniques for increasing the rigidity of the base to stably support the mold clamping unit and the injection unit, while Patent Documents 3 and 4 disclose techniques for accommodating a control device that controls the operation of a molding machine in the internal space of the base. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-84979 [Patent Document 2] Japanese Patent Application Laid-Open No. 2014-61655 [Patent Document 3] Japanese Patent Application Laid-Open No. 2007-30463 [Patent Document 4] Japanese Patent Application Laid-Open No. 2010-12720 Summary of the Invention [Problem to be solved by the invention]

[0005] In a molding machine having the above configuration, an operator must perform various operations on the injection device, such as charging molding material into the hopper and receiving molding material discharged from the nozzle in a tray.

[0006] The present invention has been made to solve the problems of the prior art, and an object of the present invention is to provide a molding machine that improves the work efficiency of the operator. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the present invention provides a molding machine including a mold clamping device that opens, closes, and clamps a mold, an injection device that is movable in a direction toward and away from the mold clamping device and that injects a molding material into the mold while in contact with the mold clamping device, and a base that supports the injection device on one side in the longitudinal direction and the mold clamping device on the other side in the longitudinal direction, of longitudinal and lateral directions that are orthogonal to each other in the horizontal direction, the injection device includes a hopper that stores molding material, and a heating cylinder that injects the molding material supplied from the hopper through a nozzle; The base includes a bottom plate, a pair of vertical plates standing on the bottom plate at positions spaced apart in the short-side direction, and a top plate supported on upper ends of the pair of vertical plates, the length of the top plate in the short-side direction being longer than the distance between the pair of vertical plates, and the top plate is provided with: At the front end in the lateral direction, a recess in the lateral direction is formed in the center portion in the longitudinal direction facing the hopper and the nozzle, the recess being recessed in the lateral direction more than both end portions in the longitudinal direction. It is characterized by having a notch formed therein. [Effects of the Invention]

[0008] According to the present invention, the work efficiency of the operator can be improved. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of an injection molding machine according to an embodiment of the present invention. [Figure 2] FIG. 1 is a side view of an injection molding machine according to an embodiment of the present invention. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] (A) is a left side view of the base, and (B) is a right side view of the base. [Figure 9]5A is a cross-sectional view taken along line AA in FIG. 5, and FIG. 5B is a cross-sectional view taken along line BB in FIG. [Figure 10] This is a diagram for comparing the internal space and height when the beam is placed on the underside or upper side of the top surface. DETAILED DESCRIPTION OF THE INVENTION

[0010] An injection molding machine 10 according to the present invention will be described below with reference to the drawings. The injection molding machine 10 is a device that injects a measured amount of plasticized resin (molding material) into a mold to form an injection-molded product. However, a specific example of the molding machine is not limited to the injection molding machine 10, and may be a die-casting machine that injects molten metal (molding material) into a mold to form a molded product.

[0011] Fig. 1 is a perspective view of an injection molding machine 10 according to this embodiment. Fig. 2 is a side view of the injection molding machine 10 according to this embodiment. As shown in Figs. 1 and 2, the injection molding machine 10 mainly includes a mold clamping unit 20, an injection unit 30, and a base 40.

[0012] The mold clamping device 20 opens, closes, and clamps the mold 21. Specifically, the mold clamping device 20 mainly includes a fixed die plate 23 that supports a fixed-side mold 22, and a movable die plate 25 that supports a movable-side mold 24. The fixed-side mold 22 and the movable-side mold 24 are supported so as to face each other in the left-right direction (horizontal direction) of the injection molding machine 10.

[0013] The movable die plate 25 moves left and right along tie bars 27 by transmitting the driving force of a die opening / closing motor (not shown) through a toggle link mechanism 26. When the movable die plate 25 moves leftward, the fixed-side die 22 and the movable-side die 24 move apart. On the other hand, when the movable die plate 25 moves rightward, the fixed-side die 22 and the movable-side die 24 come into contact with each other, forming a cavity (internal space) inside the die 21. Then, when pressure is further applied in a direction that moves the movable die plate 25 rightward, the fixed-side die 22 and the movable-side die 24 are clamped.

[0014] The injection unit 30 plasticizes, measures, and injects the molding material. The injection unit 30 according to this embodiment is disposed horizontally apart from the mold clamping unit 20 (to the right of the mold clamping unit 20). The injection unit 30 mainly includes a heating cylinder 31, a screw 32, a hopper 33, and a hopper block 34.

[0015] The heating cylinder 31 is a cylindrical member extending in the left-right direction of the injection molding machine 10. The heating cylinder 31 mainly includes a screw passage 35 and a nozzle 36. A band heater (not shown) for heating the heating cylinder 31 is attached to the outer circumferential surface of the heating cylinder 31.

[0016] The screw passage 35 is a linear space extending in the axial direction (longitudinal direction) inside the heating cylinder 31. The screw passage 35 communicates with the outside of the heating cylinder 31 through a nozzle 36 provided at the tip (front end) of the heating cylinder 31. In other words, the screw passage 35 is a space extending from the nozzle 36 along the axial direction.

[0017] The screw 32 is a cylindrical member. A spiral groove is formed on the outer circumferential surface of the screw 32. The screw 32 is housed in the internal space of the heating cylinder 31 in a state in which it can move left and right (hereinafter referred to as "forward and backward") and rotate in the injection molding machine 10. The screw 32 moves forward and backward when a driving force from an injection motor (not shown) is transmitted thereto, and rotates when a driving force from a metering motor (not shown) is transmitted thereto.

[0018] The hopper 33 is a funnel-shaped member that stores the raw molding material. The hopper block 34 is a member that supports the heating cylinder 31 and the hopper 33. The molding material stored in the hopper 33 is supplied to a screw passage 35 of the heating cylinder 31 through an opening provided at the bottom end.

[0019] Furthermore, the injection unit 30 is configured to be movable in a direction toward and away from the mold clamping unit 20 by transmitting the driving force of an advance / retract motor (not shown). When the injection unit 30 moves to the left, the nozzle 36 comes into contact with the fixed mold 22, and the screw passage 35 communicates with the cavity of the mold 21. When molding material is injected from the heating cylinder 31 in this state (when the injection unit 30 is in contact with the mold clamping unit 20), a molded product is formed in the cavity. On the other hand, when the injection unit 30 moves to the right, the tip of the nozzle 36, which has moved away from the fixed mold 22, becomes exposed.

[0020] The base 40 supports the mold clamping unit 20 and the injection unit 30 while being spaced apart (facing each other) in the left-right direction. The base 40 has a roughly rectangular parallelepiped outer shape. In the following description, of the longitudinal and lateral directions of the base 40 which are orthogonal to each other in the horizontal direction, the longitudinal direction corresponds to the left-right direction, and the lateral direction corresponds to the front-rear direction. However, the longitudinal and lateral directions of the base 40 and the front-rear, left-right, and right-left directions are relative to each other and are not limited to the above example. Furthermore, the height direction of the base 40 corresponds to the up-down direction.

[0021] FIG. 3 is an exploded perspective view of the base 40. FIG. 4 is a perspective view of the base 40. FIG. 5 is a front view of the base 40. FIG. 6 is a plan view of the base 40. FIG. 7 is a rear view of the base 40. FIG. 8 (A) is a left side view of the base 40, and FIG. 8 (B) is a right side view of the base 40. FIG. 9 (A) is a cross-sectional view taken along line AA in FIG. 5, and FIG. 9 (B) is a cross-sectional view taken along line BB in FIG. 5.

[0022] The base 40 mainly includes a bottom plate 41, a top plate 42, and a pair of vertical plates 43 and 44. The bottom plate 41, the top plate 42, and the pair of vertical plates 43 and 44 according to this embodiment are each formed from a single flat plate (i.e., not a structural steel).

[0023] The bottom plate 41 and the top plate 42 have a generally rectangular parallelepiped shape. The bottom plate 41 and the top plate 42 are arranged with their respective longitudinal sides oriented in the left-right direction and their respective lateral sides oriented in the front-to-back direction. The bottom plate 41 and the top plate 42 are also arranged with a gap between them in the up-down direction.

[0024] The pair of vertical plates 43, 44 has a generally rectangular parallelepiped shape. The pair of vertical plates 43, 44 are arranged with their longitudinal sides oriented in the left-right direction and their lateral sides oriented in the up-down direction. The pair of vertical plates 43, 44 are arranged with a gap between them in the front-rear direction. Furthermore, the gap between the pair of vertical plates 43, 44 is equal across the entire left-right direction.

[0025] The pair of vertical plates 43, 44 are disposed between the bottom plate 41 and the top plate 42. More specifically, the pair of vertical plates 43, 44 are erected on the upper surface of the bottom plate 41. The pair of vertical plates 43, 44 also support the top plate 42 at their upper ends. As a result, an internal space surrounded by the bottom plate 41, the top plate 42, and the pair of vertical plates 43, 44 is formed inside the base 40.

[0026] This internal space accommodates a control device 60 (see FIG. 10) described below as well as other components of the injection molding machine 10. The control device 60 controls the operation of the injection molding machine 10 (more specifically, the mold clamping device 20 and the injection device 30), and is composed of, for example, a CPU, ROM, RAM, etc. In addition, components accommodated in the internal space of the base 40 include, for example, a power distribution board, a cooling device, and a lubricating oil tank.

[0027] Furthermore, the length of the top plate 42 in the front-to-rear direction is longer than the distance between the pair of vertical plates 43, 44. That is, the front end of the top plate 42 protrudes forward beyond the vertical plate 43. Furthermore, the rear end of the top plate 42 protrudes rearward beyond the vertical plate 44. The relationship between the bottom plate 41 and the vertical plates 43, 44 may be similar.

[0028] The vertical plate 43 has windows 43a, 43b, 43c, and 43d formed therethrough in the thickness direction. Furthermore, pillars 43e and 43f extending in the vertical direction are formed adjacent to the windows 43a and 43b. More specifically, the window 43a (first window) and the window 43b (second window) are spaced apart in the left-right direction. Furthermore, the pillar 43e (first pillar) is located to the right of the window 43a. The pillar 43f (second pillar) is located to the left of the window 43a and to the right of the window 43b.

[0029] Similarly, the vertical plate 44 has windows 44a, 44b, 44c, and 44d formed therethrough in the thickness direction. Furthermore, pillars 44e and 44f extending in the vertical direction are formed adjacent to the windows 44a and 44b. More specifically, the window 44a (first window) and the window 44b (second window) are spaced apart in the left-right direction. Furthermore, the pillar 44e (first pillar) is located to the right of the window 44a. The pillar 44f (second pillar) is located to the left of the window 44a and to the right of the window 44b.

[0030] The windows 43a to 43d and 44a to 44d are openings for accessing the components housed in the internal space of the base 40. The windows 43a to 43d and 44a to 44d may be closed by openable and closable doors (not shown). Furthermore, as shown in Figures 5 and 7, the corresponding windows 43a, 44a, pillars 43e, 44e, and pillars 43f, 44f are formed at positions that overlap one another when the base 40 is viewed from above in the front-to-rear direction.

[0031] 1 and 2, the top plate 42 supports the injection unit 30 on the right side (one side in the longitudinal direction) of its upper surface, and supports the mold clamping unit 20 on the left side (the other side in the longitudinal direction) of its upper surface. A through-hole 42a that penetrates the top plate 42 in the thickness direction is formed in a position biased to the left side facing the mold clamping unit 20.

[0032] Furthermore, a notch 42b is formed in the front end (end in the short side direction) of the top plate 42. The notch 42b refers to a portion of the top plate 42 that is recessed (set back) from other portions in the longitudinal direction (i.e., the left-right direction). The notch 42b is disposed approximately in the center of the top plate 42 in the left-right direction. More specifically, the notch 42b is disposed at the position of the injection device 30 in the left-right direction. Even more specifically, the notch 42b is disposed at a position facing the hopper 33 and the nozzle 36 of the injection device 30.

[0033] As shown in FIGS. 3 and 4, rails 45a, 45b, 46a, 46b, 47a, and 47c, a base 47b, and a beam 48 are attached to the upper surface of the top plate 42.

[0034] The rails 45a, 45b are arranged at the left end of the top plate 42, sandwiching the through hole 42a in the front-rear direction. A support plate that supports the base end of the toggle link mechanism 26 is supported on the rails 45a, 45b in a state where it can move in the left-right direction. The rails 46a, 46b are arranged on the right side of the rails 45a, 45b, sandwiching the through hole 42a in the front-rear direction, and extend in the left-right direction. The rails 46a, 46b support the movable die plate 25 in a state where it can move in the left-right direction.

[0035] The rails 47a, 47c and the base 47b are arranged at the left end of the top plate 42 at positions spaced apart in the front-rear direction and extend in the left-right direction. The distance between the rails 47a, 47c is narrower than the distance between the pair of vertical plates 43, 44. That is, as shown in FIG. 8(B), the vertical plate 43 is located in front of the rail 47a, and the vertical plate 44 is located behind the rail 47c. The rails 47a, 47c support the injection unit 30 so that it can move in the left-right direction (i.e., in the direction toward and away from the mold clamping unit 20).

[0036] The base 47b is used to mount a pair of stopper components (not shown) that restrict the movement range of the injection device 30 in the left-right direction. The pair of stopper members are arranged spaced apart in the left-right direction on the base 47b. The injection device 30 is configured to be able to move forward and backward between the pair of stopper components mounted on the base 47b.

[0037] The beam 48 reinforces the right side of the base 40 to support the weight of the injection device 30. Therefore, the beam 48 extends in the front-rear direction within the extension range of the rails 47a, 47c and the base 47b. In other words, the rails 47a, 47c, the base 47b, and the beam 48 extend in directions that intersect (are perpendicular to) each other. Moreover, the beam 48 is formed as a whole from a long, rod-shaped flat plate (i.e., not a structural steel).

[0038] The height of the beam 48 is set lower than the height of the rails 47a and 47c. That is, as shown in Fig. 8(B), the beam 48 is disposed on the upper surface of the top plate 42 within the range of the height of the rails 47a and 47c.

[0039] 5 and 7, the beam 48 is disposed in the opening range of the windows 43a and 44a in the left-right direction. More specifically, the beam 48 is disposed at a position equidistant from the pillars 43e and 44e (first beams) and the pillars 43f and 44f (second beams) in the left-right direction.

[0040] Furthermore, the length of the beam 48 in the front-to-rear direction is longer than the distance between the pair of vertical plates 43, 44. That is, as shown in Figures 8(B) and 9(A), both ends of the beam 48 are located outward in the front-to-rear direction from the positions of the pair of vertical plates 43, 44. More specifically, the front end of the beam 48 is located forward of the vertical plate 43, and the rear end of the beam 48 is located rearward of the vertical plate 44.

[0041] The beam 48 according to this embodiment is composed of a partial beam 48a located in front of the rail 47a, a partial beam 48b located between the rail 47a and the base 47b, a partial beam 48c located between the base 47b and the rail 47c, and a partial beam 48d located behind the rail 47c. The beam 48 is composed of the partial beams 48a to 48d lined up in a line in the front-rear direction. However, the specific configuration of the beam 48 is not limited to the example described above, and it may be a single rod inserted into a through-hole that penetrates the rails 47a, 47c, and the base 47b in the front-rear direction.

[0042] Additionally, reinforcing ribs 49a, 49b, 50a, 50b, 51a, and 51b, a partition wall 52, L-angles 53a and 53b, and C-beams 54, 55, 56, 57, 58a, and 58b are housed in the internal space of base 40. These components serve to reinforce base 40 and to divide the internal space of base 40.

[0043] The reinforcing ribs 49a, 49b protrude inward from the inner surfaces of the vertical plates 43, 44 at the right end of the base 40 and extend in the vertical direction. One end (lower end) of the reinforcing ribs 49a, 49b abuts against the upper surface of the bottom plate 41, and the other end (upper end) abuts against the lower surface of the top plate 42. However, since the reinforcing ribs 49a, 49b are spaced apart in the front-to-rear direction, components of the injection molding machine 10 can enter and be removed from the internal space of the base 40 through between the reinforcing ribs 49a, 49b.

[0044] The reinforcing ribs 50a, 50b protrude inward from the inner surfaces of the vertical plates 43, 44 at the positions of the columns 43f, 44f and extend in the vertical direction. The reinforcing ribs 51a, 51b protrude inward from the inner surfaces of the vertical plates 43, 44 and extend in the vertical direction at the left end of the base 40. One end (lower end) of the reinforcing ribs 50a, 50b, 51a, 51b abuts against the upper surface of the bottom plate 41 and the other end (upper end) abuts against the lower surface of the top plate 42.

[0045] The partition wall 52 divides the internal space of the base 40 in the left-right direction, approximately at the center of the base 40 in the left-right direction. However, the upper front end and upper rear end of the partition wall 52 are formed with notches 52a, 52b that communicate with the passages formed by the L-shaped angles 53a, 53b.

[0046] The L-shaped angles 53a and 53b extend in the left-right direction between the partition wall 52 and the C-shaped beam 55. One end of the L-shaped angle 53a abuts against the lower surface of the top plate 42, and the other end abuts against the inner surface of the vertical plate 43. The L-shaped angle 53b abuts against the lower surface of the top plate 42, and the other end abuts against the inner surface of the vertical plate 44.

[0047] As a result, a passage extending in the left-right direction and surrounded by the top plate 42, the vertical plate 43, and the L-angle 53a, and a passage extending in the left-right direction and surrounded by the top plate 42, the vertical plate 44, and the L-angle 53b are formed in the internal space of the base 40. For example, signal lines connecting the control device 60 (see FIG. 10) housed to the right of the partition wall 52 in the internal space of the base 40 to the mold clamping device 20 pass through these passages.

[0048] The C-beams 54, 55, 56, 57, 58a, and 58b are formed by cutting C-shaped steel to a predetermined length or bending a flat plate. Therefore, the cross-sectional size (i.e., width and height) of the beam 48 perpendicular to the extension direction is smaller than that of the C-beams 54 to 58b. The C-beams 54 to 58b are disposed on the underside of the top plate 42.

[0049] The C-shaped beams 54, 55, 56, and 57 each extend in the front-to-rear direction between a pair of vertical plates 43 and 44. That is, the length of the C-shaped beams 54, 55, 56, and 57 is shorter than the distance between the pair of vertical plates 43 and 44. The C-shaped beams 54, 55, 56, and 57 are also arranged at positions spaced apart in the left-to-right direction.

[0050] 5 and 7, the C-beam 54 is disposed within the opening range of the windows 43b and 44b in the left-right direction. Also, as shown in Fig. 6, the C-beam 54 is disposed within the extension range of the rails 47a and 47c in the left-right direction. The C-beam 54 reinforces the right side of the base 40 to support the weight of the injection unit 30.

[0051] 6, the C-shaped beam 55 is disposed in the left-right direction within the opening range of the through-hole 42a and within the extension range of the rails 46a and 46b. The C-shaped beam 56 is disposed in the left-right direction within the opening range of the through-hole 42a and within the extension range of the rails 45a and 45b. The C-shaped beam 57 is disposed at the left end of the base 40. The C-shaped beams 55 to 57 reinforce the left side of the base 40 to support the weight of the mold clamping unit 20.

[0052] The C-shaped beams 58a, 58b extend in the left-right direction. The C-shaped beams 58a, 58b are disposed between the pair of vertical plates 43, 44 at positions equidistant from the vertical plates 43, 44 (i.e., at the center in the front-rear direction). The C-shaped beams 58a, 58b are disposed in a row along the left-right direction. The C-shaped beams 58a, 58b are disposed within the opening range of the through-hole 42a in the left-right direction. More specifically, the C-shaped beam 58a is disposed between the C-shaped beams 55, 56. The C-shaped beam 58b is disposed between the C-shaped beams 56, 57. The C-shaped beams 58a, 58b reinforce the left side of the base 40 to support the weight of the mold clamping unit 20.

[0053] According to the above embodiment, for example, the following advantageous effects are achieved.

[0054] According to the above embodiment, the beam 48 is disposed on the upper surface of the tabletop 42 and within the height range of the rails 47a, 47c, so the strength and internal space of the base 40 can be ensured and the height in the vertical direction can be further reduced compared to when the beam 48 is disposed on the underside of the tabletop 42. Figure 10 is a diagram for comparing the internal space and height when the beam 48 is disposed on the underside or upper surface of the tabletop 42.

[0055] 10, if the heights of the internal spaces of the bases 40, 40' are the same, when the beams 48 are placed on the upper surface of the top plate 42, the injection molding machine 10 can be lowered by height H than when the beams 48 are placed on the lower surface of the top plate 42. As a result, transportation costs are reduced, the installation space for the injection molding machine 10 is reduced, and visibility around the injection molding machine 10 is ensured.

[0056] As another example, if the injection molding machines 10, 10' are made the same height, when the beams 48 are arranged on the upper surface of the top plate 42, the height of the internal space of the base 40 can be made higher than when the beams 48 are arranged on the lower surface of the top plate 42. As a result, the degree of freedom in the layout of the components housed in the internal space of the base 40 increases, and the components can be more easily accessed.

[0057] Furthermore, according to the above embodiment, by disposing the beam 48 on the upper surface of the top plate 42, the extension length of the beam 48 can be made longer than the distance between the pair of vertical plates 43, 44. This ensures the necessary strength even if the cross-sectional area perpendicular to the extension direction of the beam 48 is reduced. As a result, the beam 48 can be made of a flat plate instead of a C-shaped steel.

[0058] Furthermore, according to the above embodiment, by providing beams 48 at positions equidistant from the pillars 43e, 44e and the pillars 43f, 44f located on the left and right sides of the windows 43a, 44a, it is possible to reinforce the positions of the vertical plates 43, 44 where the strength is relatively low. As a result, the strength of the base 40 can be effectively improved with a small number of reinforcing members.

[0059] Furthermore, according to the above embodiment, the C-beams 54 to 58b are made of C-shaped steel and are arranged on the underside of the top plate 42. However, as long as they are not positioned facing the windows 43a and 43b (i.e., positions where most of the components are housed), no major problems will arise even if the internal space of the base 40 becomes narrow.

[0060] Furthermore, according to the above embodiment, by arranging the single vertical plates 43, 44 at equal intervals across the entire left-right direction, the structure of the base 40 can be simplified compared to when the spacing between the vertical plates is changed between the support position of the mold clamping unit 20 (i.e., the left side) and the support position of the injection unit 30 (i.e., the right side).

[0061] Furthermore, according to the above embodiment, by providing the notch 42b at the front end of the top plate 42 at the position of the injection unit 30, access to the hopper 33 and the nozzle 36 is facilitated. More specifically, by performing the work of charging the molding material into the hopper 33 and the work of receiving the molding material discharged from the nozzle 36 in the purge process in a tray at the position of the notch 42b, work efficiency is improved. Meanwhile, by increasing the amount of forward projection of the top plate 42 at a position away from the notch 42b, it is possible to prevent the operator from accidentally touching the mold clamping unit 20 and the injection unit 30.

[0062] In particular, in the above embodiment, the single vertical plates 43, 44 are arranged at equal intervals across the entire left-right direction, which inevitably increases the forward protrusion of the top plate 42. Therefore, by selectively forming the notches 42b at required positions as in the above embodiment, the above-mentioned effects become even more pronounced.

[0063] The above-described embodiments are merely illustrative examples of the present invention, and are not intended to limit the scope of the present invention to these embodiments. Those skilled in the art can implement the present invention in various other forms without departing from the spirit of the present invention. [Explanation of symbols]

[0064] 10... injection molding machine, 20... mold clamping device, 21... mold, 22... fixed side mold, 23... fixed die plate, 24... movable side mold, 25... movable die plate, 26... toggle link mechanism, 27... tie bar, 28... mold opening / closing motor, 30... injection unit, 31... heating cylinder, 32... screw, 33... hopper, 34... hopper block, 35... screw passage, 36... nozzle, 40... base, 41... bottom plate, 42... top plate, 42a... through hole, 42b... notch, 43, 4 4...Vertical board, 43a, 43b, 43c, 43d, 44a, 44b, 44c, 44d...Windows, 43e, 43f, 44e, 44f...Columns, 60...Control device, 45a, 45b, 46a, 46b, 47a, 47c...Rails, 47b...Base, 48...Beams, 48a, 48b, 48c, 48d...Partial beams, 49a, 49b, 50a, 50b, 51a, 51b...Reinforcing ribs, 52...Bulkhead, 53a, 53b...L-angles, 54, 55, 56, 57, 58a, 58b...C-shaped beams

Claims

[Claim 1] a mold clamping device that opens, closes, and clamps the mold; an injection device that is movable in a direction toward and away from the mold clamping device and that injects a molding material into the mold while in contact with the mold clamping device; a base supporting the injection unit on one side in the longitudinal direction and the mold clamping unit on the other side in the longitudinal direction, the base supporting the injection unit on one side in the longitudinal direction and the mold clamping unit on the other side in the longitudinal direction, the base comprising: The injection device a hopper for storing molding material; a heating cylinder that injects the molding material supplied from the hopper through a nozzle, The base is The bottom plate and a pair of vertical plates provided on the bottom plate at positions spaced apart in the short side direction; a top plate supported on the upper ends of the pair of vertical plates, The length of the top plate in the short-side direction is longer than the distance between the pair of vertical plates, A molding machine characterized in that the top plate has a notch formed at the front end in the short side direction in the center of the long side direction facing the hopper and the nozzle, the notch being recessed in the short side direction more than both end portions in the long side direction.

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