JP7254340B2 - Container type injection molding unit - Google Patents

Description

The present invention relates to an injection molding unit.

The trouble and cost involved in transporting molded products has become a problem, and there is a demand to eliminate the need for transportation by enabling each end user to manufacture the required number of molded products when they need them. rice field. In response to this, we have previously proposed an injection molding apparatus as described in Patent Document 1, which can be downsized, can be easily controlled to manufacture molded products with the desired precision, and can be installed at the end user's location. Proposed.
Since this equipment can be injected at low pressure, the casting surface is clean, which is why it is highly evaluated. is done, and the versatility is also increasing.

JP 2012-30429 A JP 2018-192758 A

By the way, depending on the work site of the end user, there are cases where a plurality of injection molding machines are operated at full capacity at a certain time to carry out the injection molding work, but after the time has passed, the machines are idle.
On the other hand, if an injection molding machine is not installed semi-permanently at a specific work site, but shared at multiple work sites, the injection molding machine must be installed at the work site and connected to the drive source and control system to operate. After making it possible and completing the necessary injection molding work, the injection molding device or the like is removed and transported to the next work site, where the work of installation and removal is performed in the same way. In order to protect against shaking and vibration during container transportation, the injection molding apparatus is disassembled and packed.
Therefore, it is not realistic to require end users to perform these operations.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a new and useful container-type injection molding unit that enables container transportation by unitizing the work site itself. .

The present invention has been made to solve the above problems, and the invention of claim 1 comprises: a container; and an injection molding device installed on a table, wherein the inner space of the container is used as a work site, and the posture of the table against shaking and vibration from the inner surface. The table is mounted against the inner surface via a vibration damping mechanism that maintains the and a holder supported by the support shaft, the support shaft being fixed to an inner surface, and a table being mounted on the holder.

The invention of claim 2 is the container-type injection molding unit of claim 1 , wherein the intermediate portion of the support shaft is relatively thin, and the holder is fitted on the intermediate portion to be lifted and supported. A container-type injection molding unit characterized by

According to the invention of claim 3 , in the container-type injection molding unit of claim 2 , the outer peripheral surface of the support shaft exposed at the top and bottom with the outer fitting portion of the holder held therebetween is held to prevent expansion in the radial direction. Thus, the container-type injection molding unit is characterized by having locking means for realizing a rigid connection state with respect to the inner surface of the table.

According to a fourth aspect of the invention, there is provided the container-type injection molding unit according to the third aspect, wherein in the lock means, rotating pieces surrounding the outer peripheral surface of the support shaft with a curved concave surface are arranged facing each other. It is a container-type injection molding unit that

The invention of claim 5 is the container-type injection molding unit according to any one of claims 1 to 4 , wherein the injection molding device is of a manually operated type.

According to the container-type injection molding unit of the present invention, the work site itself is unitized and container transportation is possible. can come

1 is a perspective view of a container-type injection molding unit according to an embodiment of the present invention; FIG. FIG. 2 is an enlarged view of the damping mechanism of the container-type injection molding unit of FIG. 1 when it is not locked; FIG. 2 is an enlarged view of the vibration damping mechanism of the container-type injection molding unit of FIG. 1 when it is locked; 4 is a front view of FIG. 3; FIG. 4 is a top view of FIG. 3; FIG. 4 is a side view of FIG. 3; FIG. FIG. 4 is an enlarged cross-sectional view of the damping mechanism of FIGS. 2 and 3; FIG. 2 is a top view of the vibration damping mechanism of the container-type injection molding unit of FIG. 1 when locked and when unlocked; FIG. 9 is a sectional view corresponding to FIG. 8 when locked and when unlocked;

A container-type injection molding unit 1 according to an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 3 denotes a container. This container 3 is a standardized one for transportation, and the interior is partitioned into two compartments. ing. In a large space on the right side of the partition wall 11, a manually operated vertical injection molding machine A and an air cylinder driven horizontal injection molding machine B are installed. In the small space on the left side, a gas tank C for operation of the injection molding apparatus B, a compressor D, a control panel E, etc. are arranged, and the inner space of the container 3 serves as a work site. A plurality of injection molding apparatuses A are installed on a table 13 , and an injection molding apparatus B is installed on a table 15 .

Since the container 3 is transported in this state, it can be installed directly on the ground or on the foundation surface after the foundation work has been completed upon arrival at a predetermined location. , the injection molding operation can be started immediately.
During transportation, the container 3 shakes or vibrates depending on road conditions. Since the injection molding apparatus B is of a horizontal type, it can be installed relatively stably.
Therefore, a damping mechanism 17 is provided.

The table 13 has an elongated rectangular shape and is spaced from the floor 5 against the inner surface 7 .
As shown in FIGS. 2 and 3, the table 13 is installed against the inner surface 7 via a damping mechanism 17 .
In the damping mechanism 17, reference numeral 19 denotes a base portion. The base portion 19 is vertically symmetrical with respect to the horizontal center line. The fixing portion 21 has a rectangular plate shape elongated in the vertical direction, and the rear surface thereof is overlapped with the inner surface 7 and fixed by screwing. The mounting portion 23 protrudes from the surface side of the fixing portion 21 near the center. The mounting portion 23 is formed with a groove 25 (FIG. 7) that opens toward the projecting tip side. The recessed groove 25 penetrates the mounting portion 23 in the lateral direction and has left and right end faces 27, 27, which are open on three sides together with a recessed opening 29 (FIGS. 6 and 7). Both the upper surface and the lower surface that constitute the inner surface of the groove 25 are horizontal surfaces, the inner surface is a vertical surface, and the boundary between them is rounded. That is, the internal space of the concave groove 25 is a substantially rectangular space.

A rubber bush 31 is provided as an elastic body in the internal space of the concave groove 25 . The rubber bushing 31 has a cylindrical shape, and its outer peripheral surface in the middle in the height direction is recessed to form a recessed ring portion 33 (FIG. 7). The height of the rubber bush 31 is set to be slightly smaller than the width dimension of the recessed groove 25, and the rubber bush 31 is accommodated without being compressed and protruding.
A through-hole is formed in the axial direction of the rubber bushing 31, and through-holes are also formed in the mounting portion 23 so as to communicate with the through-hole. A rubber bush 31 is screwed and fixed to the mounting portion 23 through these through holes.
The rubber bush 31 serves as a support shaft extending vertically.

A reference numeral 35 indicates a holder, and a base end portion 37 of the holder 35 is formed with an outer fitting hole 39 . A base end portion 37 of the holder 35 is inserted into the groove 25 from the recess opening 29 side, and an external fitting hole 39 is fitted onto the intermediate recessed ring portion 33 of the rubber bush 31 to be lifted and supported. Therefore, the outer peripheral surface of the rubber bushing 31 is exposed on the upper and lower sides with the base end portion 37 interposed therebetween.
The rear end of the base end portion 37 of the holder 35 does not reach the rear surface of the recessed groove 25 and is located in front of the rear surface of the recessed groove 25 with a slight gap between it and the rear surface of the recessed groove 25 .

The holder 35 is branched into holding pieces 41, 41 at a portion projecting forward from the concave groove 25, and the plate surfaces of these holding pieces 41, 41 are opposed to each other in the vertical direction. The edge of the table 13 is sandwiched between the holding pieces 41 , 41 . Through-holes are formed in the holding pieces 41, 41 so as to face each other vertically, and a through-hole is also formed in the table 13 in communication therewith. Through these through-holes, the table 13 is fixed to the holder 35 by screws.
Therefore, a small gap is provided between the inner surface 7 of the container 3 and the table 13 .

A pair of rotating pieces 43, 43 are provided as locking means on the holder 35 side. A supporting portion 45 of the rotating piece 43 has a rectangular flat plate shape. One end of the I-shaped portion 49 of the holding portion 47 is connected to the C-shaped portion 51 , and the other end of the I-shaped portion 49 is connected to the supporting portion 45 so as to be integrated. The other ends of the I-shaped portions 49, 49 of the holding portions 47, 47 are connected to both ends of one side edge of the supporting portion 45, and the holding portions 47, 47 extend from the supporting portion 45 in the same direction and parallel to each other. out.

The support portion 45 is rotatably mounted in the vicinity of the concave end surface 27, and the C-shaped portions 51, 51 of the holding portions 47, 47 are moved from the concave end surface 27 into the internal space of the concave groove 25 by turning. It is designed to go in and out. In the inner space of the groove 25, the curved concave surface 53 of the C-shaped portion 51 surrounds and embraces the exposed outer peripheral surface of the rubber bushing 31. As shown in FIG. One rotating piece 43 has a pair of C-shaped portions 51, 51 which abut on the outer peripheral surfaces of the rubber bush 31 exposed above and below with the base end portion 37 interposed therebetween.
A pair of rotating pieces 43, 43 are mounted facing each other across the base portion 19, and the exposed surface of the rubber bush 31 is almost held by a total of four C-shaped portions 51, 51, . be done. In this holding state, the rubber bushing 31 is prevented from elastically expanding radially outward.

A plurality of damping mechanisms 17 are provided along the long edge direction of the table 13. The table 13 is stably lifted and supported while being cantilevered, and the plate surface of the table 13 is normally substantially horizontal. It's becoming
A plurality of injection molding apparatuses A are installed using this upper surface as a mounting surface. This injection molding machine A is of a vertical type and is likely to topple over when subjected to strong shakes or vibrations.

3 to 6 show the locked state, and when the state of FIG. 7 is viewed from the orthogonal direction, it is as shown in FIG. 8 (locked) and FIG. 9 (locked).
That is, the pair of rotating pieces 43, 43 are manually rotated so that the C-shaped portions 51, 51, . . . there is
In this state, the rubber bushing 31 is restrained from elastically expanding radially outward, so that the damping mechanism 17 cannot perform its damping function. Furthermore, since the C-shaped portions 51, 51, . . . be connected to the

When injection molding is performed using the injection molding apparatus A, the molding material is pushed toward the lower mold. , the table 13 will not tilt even if the pushing force is applied.

2 shows the unlocked state, and when the state of FIG. 7 is viewed from the orthogonal direction, it is as shown in FIG. 8 (unlocked state) and FIG. 9 (unlocked state).
That is, the pair of rotating pieces 43 , 43 are manually rotated so that the C-shaped portions 51 , 51 , . . .
In this state, the rubber bushing 31 is released from radially outward elastic expansion, so that the damping mechanism 17 can exert its damping function.

Even if the inner surface 7 of the container 3 sways or vibrates during transportation, the rubber bushing 31 elastically deforms to absorb the sway or the like, so the sway or the like is transmitted to the holder 35 side. it's getting harder. Therefore, during transportation, the table 13 is maintained in a substantially horizontal position without greatly tilting due to shaking or the like of a degree normally expected.
Therefore, the injection molding apparatus A placed on the table 13 is prevented from overturning.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment. included.
For example, the number of injection molding apparatuses to be installed in the container and the layout of the installation locations thereof may be appropriately set in consideration of the circumstances of the common business operator.

INDUSTRIAL APPLICABILITY The present invention can be used in manufacturing industries that manufacture molded articles by injection molding using molding materials.

DESCRIPTION OF SYMBOLS 1... Container type injection molding unit 3... Container 5... Floor surface 7, 9... Inner surface 11... Partition wall 13... Table 15... Base 17... Vibration damping mechanism 19... Base part 21... Fixed part 23... Mounting part 25... Concave Groove 27 Concave end surface 29 Concave opening 31 Rubber bush 33 Concave ring portion 35 Holder 37 Base end portion 39 Outer fitting hole 41 Holding piece 43 Rotating piece 45 Supporting portion 47 Holding portion 49 I-shaped part 51... C-shaped part 53... Curved concave surface A... Manually operated vertical injection molding apparatus B... Air cylinder driven horizontal injection molding apparatus C... Gas tank D... Compressor E... Control panel

Claims (5)

It is composed of a container, a table installed on the floor surface while being close to the inner surface of the container with a gap, and an injection molding device installed on the table, and the inner space of the container is used as a work site. A container-type injection molding unit with
The table is installed against the inner surface via a vibration damping mechanism that attempts to maintain the posture of the table against shaking and vibration from the inner surface,
The vibration damping mechanism includes a vertically extending support shaft made of an elastic material that elastically absorbs shaking and the like, and a holder supported by the support shaft, the support shaft being fixed to the inner surface, A container-type injection molding unit , wherein a table is mounted on the holder . A container-type injection molding unit according to claim 1, wherein
A container-type injection molding unit , wherein the intermediate portion of the support shaft is relatively thin, and the holder is fitted over the intermediate portion and lifted and supported. A container-type injection molding unit according to claim 2, wherein
A lock means is provided for realizing a rigid connection state with the inner surface of the table by holding the outer peripheral surface of the support shaft exposed at the top and bottom while sandwiching the outer fitting portion of the holder to prevent expansion in the radial direction. Characterized container type injection molding unit. A container-type injection molding unit according to claim 3, wherein
A container-type injection-molding unit , wherein the lock means includes a rotating piece that surrounds the outer peripheral surface of the support shaft with a curved concave surface and is arranged to face each other . A container-type injection molding unit according to any one of claims 1 to 4 ,
A container-type injection molding unit , wherein the injection molding device is manually operated .

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