JPH07304038A - Resin molding device provided with function of reusing sprue and runner - Google Patents

Abstract

PURPOSE:To eliminate a need for separately providing a large-scale device for transporting granulated sprue and runner in a molding machine, simplify a resin molding device in structure as a whole, and easily clean the device at the time of exchanging a variety of materials. CONSTITUTION:In a resin molding device provided with an ejecting means 3 for ejecting sprue and runner A out of a resin molding position of a molding machine 1 and a granulating machine 5 for granulating the sprue and runner A ejected by the ejecting means 3, a granule discharge port 52 of the granulating machine 5 is connected to the molding machine 1 so that granules obtained by granulating the sprue and runner A supplied from the ejecting means 3 can be supplied into the molding machine 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin molding apparatus of a type having a function of reusing a spool runner generated when a resin is molded by a molding machine.

[0002]

2. Description of the Related Art Conventionally, as this type of resin molding apparatus,
For example, the one shown in FIG. 10 has been previously proposed.
In this conventional device, when the resin molding process is performed by the molding machine 1e, the spool runner A is taken out from the resin molded product by a take-out means 3e called a so-called take-out robot. It is configured so as to be thrown into the crusher 5e installed at the location. When the spool / runner A is crushed by the crusher 5e, the crushed material is transported to the material charging unit 4e of the molding machine 1e through the pneumatic transport pipe 9 and is charged therein.

According to this structure, the spool and runner as non-product members can be used again for resin molding,
Effective use of resources can be achieved.

[0004]

However, in the above-mentioned conventional one, since the crushed material of the spool / runner crushed by the crusher 5e is pneumatically transported by using the pneumatic transport tube 9, the pneumatic transport tube 9 is used. It is needless to say that the gas supply device must be installed, and in addition to this, it is also necessary to install a gas supply device for supplying the gas for transportation into the pneumatic transportation pipe 9 and its control device. Therefore, there is a problem that the whole device becomes large in size and the manufacturing cost thereof becomes expensive.

Also, in this type of resin molding apparatus, it is necessary to change the color, for example, according to the type of product. However, as described above, in the means for pneumatically transporting the pulverized material using the pneumatic transportation tube 9, the pulverized material of the spool / runner often adheres and remains inside the pneumatic transportation tube 9. Therefore, when performing product type change such as color change, it is necessary to clean the inside of the aerodynamic transport pipe 9 one by one, which also causes a difficulty.

The present invention has been proposed in view of the above points, and eliminates the need for separately providing a molding machine with a large-scale device for transporting the crushed material of the spool / runner,
Its purpose is to simplify the configuration of the entire resin molding apparatus and to facilitate cleaning when changing types.

[0007]

According to the present invention, the crusher is not installed at a position away from the molding machine as in the prior art, but the crusher is directly attached to the molding machine or the crusher is not used. The invention was invented under a completely new idea, which has never been seen in the past, for solving the above-mentioned conventional problems by eliminating the need to transport the crushed material of the spool / runner by using a transportation means.

That is, a resin molding apparatus having a spool / runner reuse function according to the present invention according to claim 1 is
A resin molding apparatus comprising: a take-out means for taking out a spool / runner from a resin molding position of a molding machine; and a crusher for crushing a spool / runner taken out by the take-out means, wherein the crusher is a crusher. The crushed material discharge port is connected to the molding machine so as to supply the crushed material obtained by crushing the spool / runner supplied from the take-out means into the molding machine.

The spool according to the present invention as defined in claim 2
In the resin molding apparatus having a runner reuse function, in the configuration of the above-mentioned claim 1, the molding machine mixes at least a virgin material and a master batch in a mixing section, and then inputs these mixed materials into the molding machine. The material charging section is provided, and the crushed material discharge port of the crusher is connected to a position below the mixing section of the material charging section.

The spool according to the present invention according to claim 3
The resin molding apparatus having a runner reuse function has the structure of claim 1, wherein the molding machine is provided with a virgin material and a masterbatch transported from a material mixer installed at a position distant from the molding machine. The structure is such that a material receiving portion for receiving the mixed material of and is provided. According to a fourth aspect of the present invention, there is provided a resin molding device having a spool / runner recycling function according to the present invention. In the configuration of the first to third aspects, the take-out means is a resin molded product molded by a molding machine. This spool runner is configured to transfer the cut and separated spool runner to the crusher side and to feed it into this crusher, or after transferring the spool runner to the crusher side while being connected to the resin molded product. Is cut and separated from the resin molded product to be supplied to the crusher.

The spool according to the present invention according to claim 5
The resin molding apparatus having a runner reuse function has the structure described in any one of claims 1 to 4, wherein a spool runner to be loaded into the crusher is shortened before being loaded. A cutting means is provided for cutting in order to turn it into a material. According to a sixth aspect of the present invention, there is provided a resin molding device having a spool / runner reuse function, which comprises a take-out means for taking out the spool / runner from a resin molding position of a molding machine. A spool / runner input port provided by connecting to the molding machine so that the spool / runner taken out by the take-out means can be put into the molding machine from the take-out means to be supplied,
A spool-runner cutting means is provided for cutting the spool-runner thrown into the spool-runner throw-in port into a short length before the throw-in.

The spool according to the present invention according to claim 7
A resin molding device having a runner reuse function has a structure according to claim 5 or 6, wherein the cutting means is a spool.
It is a nipper-shaped jig for holding spools and runners that is provided in the take-out means so that the runners can be held and cut. A resin molding apparatus having a spool / runner reuse function according to the present invention according to claim 8 is the above-mentioned claim 4.
Alternatively, in the configuration of 5, the cutting means receives the spool runner from the take-out means by the cutting means itself or by the gripping means and cuts the received spool runner and drops it into the crusher or the spool runner input port. It is a cutting device configured to.

[0013]

In the resin molding apparatus having the spool runner recycling function according to the present invention having the above-mentioned structure, the spool runner taken out from the resin molding position of the molding machine by the take-out means. Is put into the crusher, the crushed material of the spool / runner crushed by this crusher is discharged from the crushed material discharge port of the crusher and supplied into the molding machine.

Therefore, there is no need for a transportation means for purposefully transporting the crushed material of the spool / runner crushed by the crusher to the position of the molding machine. Further, this eliminates the need to clean the inside of the pneumatic transportation pipe of the transportation means every time the resin type is changed. In the resin molding device having the spool / runner reuse function according to the present invention as set forth in claim 2, the pulverized material discharge port of the pulverizer is connected to a position lower than the mixing section of the material feeding section. ,spool·
The crushed material of the runner is directly supplied into the molding machine without passing through the mixing section.

When the pulverized material is supplied into the mixing section, a relatively large amount of the pulverized material adheres in the mixing section due to the fact that fine powder or the like is mixed in the pulverized material. In reality, it takes time to clean the inside of the mixing section when the product type is changed. However, as described above, if the pulverized material is not supplied into the mixing section, the cleaning operation of the mixing section is facilitated, and the mixing section can be quickly cleaned only by, for example, blowing compressed air.

Even when the crushed material of the spool / runner is supplied to the molding machine in a state where it is not mixed with the virgin material or the masterbatch, the crushed material is then fed to the virgin material or the masterbatch by a screw in the molding machine. It is mixed with stirring. Therefore, there is no problem that the mixing state of the pulverized material with the virgin material or the like becomes insufficient. In the resin molding apparatus having the spool / runner reuse function according to the present invention as set forth in claim 3, since the mixed material of the virgin material and the masterbatch is installed at a position apart from the molding machine, the resin material Can be mixed and molded in different places.

The spool according to the present invention according to claim 4
In a resin molding apparatus having a runner reuse function, a work process of loading a spool runner into a crusher by a take-out means is performed in any of the following modes. That is, in the first aspect, the spool runner that has been cut and separated from the resin molded product in advance is transferred to the crusher side by the take-out means, and is put into the crusher as it is. In a second aspect, the spool / runner is transferred to the crusher side by the take-out means while being connected to the resin molded product, and then this spool / runner is cut and separated from the resin molded product and put into the crusher. It

The spool according to the present invention according to claim 5
In a resin molding device equipped with a runner reuse function, the spool runner can be cut by the cutting means before the spool runner is loaded into the crusher by the take-out means. The size can be reduced. Therefore, the size or capacity of the crusher for receiving and crushing such a spool runner can be reduced accordingly.

The spool according to the present invention according to claim 6
With a resin molding machine equipped with a runner reuse function, the spool / runner taken out by the take-out means from the resin molding position of the molding machine is cut into short pieces by the cutting device and then inserted into the spool / runner input port. be able to. Then, the cut pieces of the spool / runner thrown into the spool / runner throw-in port can be directly fed into the molding machine.

Therefore, in this case, the spool runner can be reused without using a crusher, and the spool runner that has been crushed or cut is pneumatically transported as in the case of claim 1. No need for transportation. In the resin molding apparatus having the spool runner reuse function according to the present invention as set forth in claim 7, in order to shorten the total length of the spool runner, or to make the spool runner short. When cutting the
The nipper-shaped jig of the take-out means for holding the spool / runner can cut the spool / runner as it is.

Therefore, the cutting process can be performed quickly, and it is not necessary to provide a cutting device separately from the take-out means. In the resin molding apparatus having the spool / runner reuse function according to the present invention as set forth in claim 8, when the spool / runner is cut, the cutting device or the gripping means spool / runner is delivered from the take-out means. After that, the spool runner can be cut by this cutting device, and the cutting process can be appropriately performed. In particular, when the spool / runner is delivered to the gripping means and cut, the spool / runner can be cut to an arbitrary size, so that it can be cut to almost the same size as the virgin pallet, and the grain uniformity can be improved. A recycled pallet is easily obtained and there is no need to use a crusher.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a resin molding apparatus having a spool runner reuse function according to the present invention. This resin molding apparatus includes a molding machine 1 and this molding machine 1.
The take-out robot 3 (corresponding to the take-out means of the present invention) for taking out and transferring the spool / runner of the resin molded product molded by the fixed mold 2a and the movable mold 2b.
A material charging section 4 for charging a resin material into the molding machine 1,
Further, it is provided with a crusher 5 and the like which are provided so as to be connected to the material charging section 4.

Of the above, the material charging section 4 and the crusher 5
Has a structure as shown in FIG. That is, in the figure, the material feeding unit 4 is provided with a fixed amount supply unit 40a, 40 for supplying a fixed amount of each of the virgin material and the master batch.
b, a mixing section 4 for mixing the masterbatch with the virgin material quantitatively discharged from these fixed quantity supply sections 40a, 40b
1 and a short pipe portion 42 that guides the material mixed in the mixing portion 41 into the molding machine 1.

The crusher 5 comprises a hopper section 50 and a crushing section 51 containing a crushing processing means such as a rotary cutter 51a driven by a motor M. The crushed material discharge port 52 provided at the bottom of the crushing section 51 is provided at an appropriate position of the short pipe section 42 of the material feeding section 4 so that the crushed material crushed in the crushing section 51 can be directly supplied into the molding machine 1. Has been opened to.

Further, in the hopper portion 50 of the crusher 5, nipper-shaped cutting blades 60 for cutting the spool / runner transferred by the take-out robot 3 in a procedure described later are provided at, for example, two positions at appropriate intervals. Equipped cutting device 6
Is provided. In FIG. 1, the take-out robot 3 is
A holding portion 31 for holding, for example, a spool runner is provided at the tip of the arm 30. The take-out robot 3 takes out the spool / runner from between the pair of molds 2a and 2b, and then the hopper 5 of the grinder 5.
It is controlled so as to repeatedly execute a series of operations for inputting 0.

Specifically, referring to FIG. 3, the resin molding work for one lot in the molding machine 1 is completed, and a set of molds 2a,
When 2b is separated, the holding unit 31 of the take-out robot 3 performs the ascending / descending operation of the arrow N1 and the horizontal moving operation of the arrow N2,
The spool runner is taken out between the molds 2a and 2b. In this case, the product part of the resin molded product and the spool
The runner is previously cut and separated by a gate cutter (not shown). Next, the arm 3 of the take-out robot 3
0 approaches the crusher 5 side along the direction of the arrow N3, then swings along the arrow N4 and expands and contracts along the arrow N5, and performs an operation of charging the spool / runner to the crusher 5 side.

However, when the spool runner is loaded into the crusher 5, as shown in FIG.
The runner A is controlled so as to be delivered to the nipper-shaped cutting blades 60 of the cutting device 6 provided in the hopper portion 50 of the crusher 5. Next, the operation and action of the resin molding device having the above-described configuration will be described. First, when a desired product is resin-molded by the molding machine 1, the spool runner cut and separated from this product by the gate cutter is taken out by the take-out robot 3 from between the molds 2a and 2b. Then, this spool runner is transferred by the procedure already described with reference to FIG. 3, and the spool runner A is cut between the nipper-shaped cutting blades 60 of the cutting device 6 provided in the crusher 5 as shown in FIG. Is handed over.

Upon receipt of the spool runner A, the cutting device 6 operates the cutting blades 60, 60 at that time to cut the spool runner A. When such cutting is performed, for example, as shown in FIG. 5 (a), the spool runner A having a size of the total length L is divided into three as shown in FIG. 5 (b). It is a short size of L / 3. Then, such a shortened spool runner A is dropped into the crusher 5 and put therein.

Therefore, as the crushing section 51 of the crusher 5,
It is not necessary to make the spool runner A having the total length L into a size that can be crushed, and a size smaller than that is sufficient, and the crusher 5 can be downsized. Next, when the spool runner A is pulverized by the pulverizer 5, the pulverized material is
From the crushed material discharge port 52 shown in FIG. 2, the crushed material is discharged into the short pipe portion 42 of the material feeding portion 4 as shown by the arrow Na, and is supplied into the molding machine 1. Therefore, it is not necessary to purposely provide the molding machine 1 with a transportation means for transporting the crushed material of the spool / runner A crushed by the crusher 5.

On the other hand, the mixed material of the virgin material and the master batch is mixed from the mixing section 41 at a predetermined timing.
The mixed material and the crushed material of the spool / runner A are heated and melted in the molding machine 1 while being sufficiently stirred and mixed by the stirring action by the rotation of the screw 10. Therefore, even if the pulverized material is supplied into the molding machine 1 without being mixed with the virgin material or the masterbatch, the mixed state of the pulverized material will not be insufficient. Therefore, it is possible to obtain a resin molded product of good quality in which the spool runner A is reused.

In the resin molding work as described above,
Depending on the type of product, it may be necessary to change colors, for example. In this color change, not only the type of masterbatch needs to be changed, but also the inside of the mixing section 41 of the material feeding section 4 must be cleaned to remove the previous material remaining in the mixing section 41. Thus, in this resin molding apparatus, since the pulverized material pulverized by the pulverizer 5 is not put into the mixing section 41, the pulverized material which is the most difficult to remove during cleaning remains attached in the mixing section 41. Never. Therefore, the inside of the mixing unit 41 can be easily cleaned, and the work load when changing the product type such as the color change is reduced.

In the above embodiment, the crusher 5 is connected to the material feeding portion 4 below the mixing portion 41 so that the crushed material of the spool / runner A is not fed into the mixing portion 41. The present invention described in claim 1 (corresponding to claim 2) is not limited to this. For example, the crusher 5 may be connected and provided above the mixing section 41 of the material feeding section 4. In this case, the crushed material is put into the mixing section 41, and cleaning of the inside of the mixing section 41 is somewhat troublesome. However, even with such a configuration, the crushed material of the spool / runner A crushed by the crusher 5 is used. It is not necessary to bother to pneumatically transport the material to the material feeding section 4 using a pneumatic transportation pipe or the like, and the device configuration can be simplified.

Further, according to the present invention as set forth in claim 1, the crusher 5 is moved to a position different from that of the material charging section 4 having the mixing section 41 and the like.
May be connected and provided. That is, the material feeding position of the virgin material, the masterbatch, etc. and the material feeding position of the crushed material of the spool / runner A may be individually provided at different positions. Further, in the above-mentioned embodiment, the spool runner A introduced into the crusher 5 is shortened by cutting the spool runner A by the cutting device 6 provided in the crusher 5. In the present invention, it is needless to say that the specific configuration of the cutting device 6 is not limited, and when the spool / runner A is cut, for example, the configuration shown in FIG. 6 may be adopted.

That is, the one shown in FIG.
The arm 30 is provided with a nipper-shaped jig 31A, and the jig 31A can freely grasp and cut the spool / runner A (corresponding to claim 7). According to this structure, after the spool / runner A is transferred above the crusher 5, the spool / runner A is moved to the jig 31.
By cutting with A, it can be put into the hopper section 50 of the crusher 5.

Therefore, even with such a construction, the spool runner A can be shortened and the crusher 5 can be downsized. Further, since the step of delivering the spool / runner A to the cutting device 6 shown in FIG. 4 is not necessary, there is an advantage that the operation of inserting the spool / runner A can be speeded up. In addition, in both cases of FIG. 6 and FIG.
The more the spool runner A is cut, the shorter the spool runner A can be made, and the size of the crusher 5 can be reduced. However, the specific number of cut points is not limited.

Further, in the above embodiment, the spool runner A, which has been cut and separated from the resin molded product by the gate cutter, is transferred by the take-out robot 3, but the present invention is not limited to this. For example, in FIG.
As shown in (a), the spool runner A in the state where the product portion B is connected is taken out by the crusher 5 by the take-out robot 3.
You may make it transfer to the upper part of.

In such a case, for example, the shooter 20 and the like are arranged above the crusher 5, and the shooter 2
The connection portion (gate portion) between the spool runner A and the product portion B may be cut above 0 by a gate cutter (not shown). This enables spool runner A
The product portion B separated from can be dropped onto the shooter 20 and supplied to a desired position, and the product portion B can be prevented from being improperly charged into the crusher 5.

Next, after the work of separating the product portion B is completed as described above, as shown in FIG. 7B, the shooter 20 is retracted from the position above the crusher 5, and the spool runner A is moved. It may be dropped and thrown into the crusher 5. As described above, in the present invention, it does not matter whether the spool / runner A transferred to the position of the crusher 5 has been cut and separated from the product portion B in advance, and it does not matter which one (claim 4). Correspondence).

FIG. 8 is a cross-sectional view of essential parts showing another example of the resin molding apparatus having the spool-runner recycling function according to the present invention. This resin molding apparatus corresponds to claim 5, and instead of the configuration in which a crusher is provided in the short pipe portion 42 of the material feeding portion 4 of the molding machine 1, a hopper 70 is connected and transferred by the take-out robot 3. The spool / runner A is provided with a spool / runner charging port 7 for charging the spool / runner A into the molding machine 1.

Also, this spool runner input port 7
In a suitable place of the hopper 70 constituting the above, a cutting device 6A having at least one cutting blade 60a for cutting the spool runner A transferred by the take-out robot 3 into a short size is provided. In the resin molding apparatus having the above-mentioned configuration, the spool / runner A is cut by the cutting device 6A into a large number of short pieces of, for example, about 3 mm, and the cut pieces of the spool / runner A are put into the spool / runner. It can be supplied from the mouth 7 into the molding machine 1.

Therefore, even in this case, as in the case where the crusher 5 is used, an appropriate resin molding operation in which the spool runner A is reused can be performed. With this resin molding device,
Since the cutting device 6A, which is cheaper than the crusher 5, can be used,
The manufacturing cost of the device can be further reduced. It is convenient when the spool / runner A has a relatively small size and can be easily cut into a short size of about 3 mm.

In the configuration shown in FIG. 8, the cutting device 6A is provided in the hopper 70 forming the spool / runner input port 7, but the present invention is not limited to this, and for example, the jig 31a of the take-out robot 3 may be provided. Spool by cutting
The runner A may be cut into a short shape. In this case, it is preferable to provide a large number of jigs 31a for cutting the spool / runner A.

Further, in the present invention, it is not necessary to re-supply the entire amount of the spool / runner A obtained by the resin molding into the molding machine 1. In this type of resin molding work, if the mixing ratio of the spool / runner in the resin molding material increases, the quality of the resin molded product tends to deteriorate. Therefore,
As a measure to avoid this, for example, spool runner A
When the robot is taken out by the take-out robot 3, the spool or the spool is ejected only once out of a predetermined number of times such as twice or three times.
The runner A may be fed into the crusher 5 (or the spool / runner inlet 7).

In the above examples, the molding machine is provided with the mixing section for mixing the virgin material and the masterbatch on the molding machine side, but the resin molding apparatus of the present invention has such a structure. However, the present invention is not limited to this, and can be applied to a type in which the mixer is installed in a place different from the molding machine and the mixed material is transported from the mixer to the molding machine by a method such as pneumatic transportation.

FIG. 9 shows an example of a resin molding apparatus of this type. That is, a fixed amount supply unit 7a for supplying a fixed amount of each of the virgin material and the masterbatch,
A transport nozzle 7d for pneumatically transporting the mixed material is provided below the mixing section 7c of the mixer 7 provided with 7b. The transport nozzle 7d is a material for the material feeding hopper 9 provided on the molding machine 1 side. Material input hopper 9 connected to receiving pipe 9a
The suction tube 9c is connected to the blower 8. Therefore, the mixed material quantified by the mixer 7 is pneumatically transported from the transport nozzle 7d to the material feeding hopper 9 when the blower 8 is driven by suction, and the material discharging damper 9b is opened as appropriate and is fed to the molding machine 1. To be done.

Further, the molding machine 1 has a material feeding hopper 9
A crusher 5 having a built-in rotary cutter 51a is provided opposite to the crusher.
A gripper (chuck) 61 of the runner A and a cutting device 6 provided with a nipper-shaped cutting blade 60a are provided. Here, the cutting device 6 uses three motors Mx, My, and Mz with respect to the gripping portion 61 of the spool / runner A.
Since it can move freely in the x-, y-, and z-axis directions, spools taken out by the take-out robot 3
Since the runner A can be cut by moving the cutting blade 60a in the three-dimensional direction while being gripped by the gripper 61, it can be cut into a short size, and the cut sprue / runner A is the material of the material feeding hopper 9. Through the crushed material discharge port 52 together with the mixed material discharged from the discharge damper 9b, the molding machine 1
Is introduced into the screw 10. In this case, when the spool runner is cut into a size of about 3 mm, that is, a pellet size, the crushing step can be omitted.

In addition to the above description, the present invention does not necessarily require that both the spool and the runner are always processed integrally. For example, only the spool or the runner is put into the crusher 5 for processing. Even in such a case, it belongs to the technical scope of the present invention.

[0048]

As can be understood from the above description, according to the resin molding device having the spool / runner recycling function according to the present invention as defined in claims 1 to 8, the resin is crushed by a crusher or Since it is possible to directly feed the spool / runner that has been cut into a short size by the cutting device into the molding machine, unlike the conventional method, the crushed material of the spool / runner crushed by the crusher can be installed in a transportation device such as a pneumatic transport pipe. It does not need to be used and transported.

As a result, the structure of the entire apparatus can be downsized and simplified, the manufacturing cost can be reduced, and it is not necessary to clean the inside of the pneumatic transportation pipe when changing the type of resin. The special effect of being able to achieve is also obtained. In particular, according to the invention as claimed in claims 2 and 3,
Since the crushed material of the spool / runner is not fed to the mixing portion of the material feeding portion, cleaning of the mixing portion at the time of changing the product type is facilitated, and there is an advantage that the work labor at the time of changing the product type can be further reduced.

According to the present invention as defined in claim 5,
Since the spool runner can be cut and shortened before the spool runner is put into the crusher, the size of the crusher for receiving and crushing such spool runner can be reduced accordingly, and the equipment The advantage of miniaturization is obtained. Further, according to the present invention described in claim 7, since the spool runner can be cut by the nipper-shaped jig of the take-out means for holding the spool runner, the cutting process can be performed quickly, and the crusher or The work of loading the spool / runner into the spool / runner loading port can be speeded up, and the work efficiency can be improved.

According to the eighth aspect of the present invention, the spool runner is received by the gripping means, and the received spool runner is cut by the cutting means. Therefore, the spool runner is cut into an arbitrary size. It has the advantage that it can be reused by forming it into almost the same shape as the virgin pellet.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a resin molding apparatus having a spool runner recycling function according to the present invention.

FIG. 2 is a cross-sectional view of a main part of a resin molding device having a reuse function of the spool / runner shown in FIG.

FIG. 3 is an explanatory view showing an operating state of a take-out robot as a take-out means.

FIG. 4 is a perspective view of a main part showing a crusher.

5A and 5B are perspective views showing an example of cutting a spool runner.

FIG. 6 is a perspective view showing another example of cutting the spool / runner.

7A and 7B are explanatory views showing an example of a processing operation of a spool runner connected to a product portion.

FIG. 8 is a cross-sectional view of essential parts showing another example of a resin molding apparatus having a spool / runner reuse function according to the present invention.

FIG. 9 is a cross-sectional view of essential parts showing another example (Claim 3) of the resin molding apparatus having the spool-runner recycling function according to the present invention.

FIG. 10 is an explanatory view showing an example of a conventional resin molding device.

[Explanation of symbols]

 1 Molding machine 2a, 2b Mold 3 Extraction robot 4 Material input part 5 Crusher 6, 6A Cutting device 7 Spool / runner input port 30 Arm (for extraction robot) 31 Holding part 31A jig 40a, 40b Quantitative supply part 41 Mixing Part 42 Short pipe part 50 Hopper part 51 Grinding part 51a Rotary cutter 52 Grinding material discharge port 60, 60a Cutting blade 7 Mixer 8 Blower 9 Material input hopper A Spool / runner B Product part

Claims (8)

[Claims] 1. A resin molding apparatus comprising a take-out means for taking out a spool / runner from a resin molding position of a molding machine, and a crusher for crushing the spool / runner taken out by the take-out means. The crusher is provided with a crushed material discharge port connected to the molding machine so as to supply the crushed material obtained by crushing the spool / runner supplied from the take-out means into the molding machine. A resin molding device with a spool / runner reuse function. 2. The molding machine according to claim 1, further comprising a material charging section for mixing at least a virgin material and a masterbatch in a mixing section and then charging these mixed materials into the molding machine. The crushed material discharge port is connected to a position lower than the mixing section of the material input section, and the resin molding apparatus having a spool / runner reuse function. 3. The material receiving section according to claim 1, wherein the molding machine receives a mixed material of a virgin material and a master batch transported from a material mixing machine installed at a position distant from the molding machine. A resin molding machine equipped with a spool / runner reuse function. 4. The unloading means according to claim 1, wherein the take-out means transfers a spool / runner cut and separated from a resin molded product molded by a molding machine to a crusher side and throws it into the crusher. Or the spool runner that is still connected to the resin molded product is transferred to the crusher side, and then the spool runner is cut and separated from the resin molded product to be supplied to the crusher. A resin molding device with a reuse function for existing spools and runners. 5. The cutting device according to claim 1, further comprising cutting means for cutting the spool runner to be loaded into the crusher to shorten the size of the spool runner before loading the spool runner. A resin molding machine equipped with a spool / runner reuse function. 6. A resin molding apparatus comprising a take-out means for taking out a spool / runner from a resin-forming position of a molding machine, wherein the spool / runner taken out by the take-out means is introduced into the molding machine from the take-out means. To cut the spool runner input port connected to the molding machine so that it can be supplied and the spool runner input to this spool runner input port into a short length before it is input. A resin molding device having a spool / runner reuse function, which is provided with a cutting means for the spool / runner. 7. The spool runner according to claim 5 or 6, wherein the cutting means is a nipper-shaped jig for holding the spool runner provided in the take-out means so that the spool runner can be held and cut. A resin molding machine with a reuse function. 8. The cutting means according to claim 5 or 6, wherein the cutting means receives the spool / runner from the take-out means by the cutting means itself or by the gripping means and cuts the received spool / runner in the crusher or the spool. -A resin molding device with a reuse function for the spool runner, which is a cutting device configured to drop into the runner input port.