JP4054128B2 - Plastic molded product take-out device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a resin molded product take-out apparatus that takes out a resin product and a sprue runner from a mold of a molding machine and puts the taken out sprue runner into a hopper of a crusher.
[0002]
[Prior art]
Conventionally, there is no resin molded product take-out device in which the sprue runner taken out from the mold of the molding machine is divided more finely than the removed state before being put into the hopper of the crusher and then put into the hopper. It was. Therefore, a resin molded product take-out device disclosed in Japanese Patent Application Laid-Open No. 7-304038 previously filed by the present applicant will be described as being close to the technical idea of the present invention.
[0003]
As shown in FIG. 13, this conventional resin molding apparatus includes a molding machine 101, a fixed mold 102a and a movable mold 102b of the molding machine 101. , A take-out robot 103 for taking out and transferring a spool / runner of a resin molded product to be molded, a material feeding unit 104 for feeding a resin material into the molding machine 101, and the material feeding unit 104 The crusher 105 provided is provided.
[0004]
Among the above, the material input unit 104 includes a fixed amount supply unit 140a, 140b for supplying a fixed amount of each of the virgin material and the master batch, and a virgin material and a master batch discharged from the fixed amount supply unit 140a, 140b. A mixing unit 141 to be mixed and a short pipe unit 142 that guides the material mixed in the mixing unit 141 into the molding machine 101 are configured.
[0005]
The pulverizer 105 includes a hopper unit 150 and a pulverization unit 151 incorporating a pulverization processing unit such as a rotary cutter driven by a motor. A pulverized material discharge port 152 provided at the bottom of the pulverizing unit 151 is provided at an appropriate position of the short tube part 142 of the material charging unit 104 so that the pulverized material pulverized in the pulverizing unit 151 can be directly supplied into the molding machine 101. Has been established.
[0006]
Further, in the hopper 150 of this crusher 105, Predicate For example, two cutting blades 160 for cutting the spool runner transferred by the take-out robot 103 in the above procedure are provided at appropriate intervals. In FIG. 13, the take-out robot 103 is provided with a chuck portion 131 that holds, for example, a spool / runner at the tip of the arm 130. The take-out robot 103 is controlled so as to repeatedly execute a series of operations in which the spool / runner is taken out from between the pair of molds 102a and 102b and then put into the hopper 150 of the crusher 105.
[0007]
In this resin molding apparatus, as shown in FIGS. 14A and 14B, the sprue runner A after being put into the hopper 150 has the same dimension L with the cutting blade 160 provided in the hopper 150. / 3 and was crushed in the pulverizer 105 after division. This is to reduce the burden that acts during pulverization when pulverizing in the pulverizer 105.
[0008]
In the pulverizer 105 in such a resin molding apparatus, a technical idea has been proposed in which the sprue runner A is pulverized in a state of being cut and divided more finely than when it is taken out of the mold.
[0009]
[Problems to be solved by the invention]
However, in the pulverizer in such a conventional resin molding apparatus, since the size of the opening of the hopper is limited, a sprue runner larger than the opening cannot be directly put into the hopper from the take-out robot. .
[0010]
Also, if the hopper is formed in accordance with this large sprue runner, the inconvenience of enlarging the lively hopper occurs, and if only this hopper is enlarged, the sprue runner falls from the hopper to the grinding blade. It will get caught in the middle of the process and will not cut smoothly.
[0011]
For this reason, a pulverizer body having a cutting blade of approximately the same width as this hopper is required in accordance with the increase in size of the hopper. To pulverize a large sprue runner, the hopper and the pulverizer body must be enlarged. There is a problem.
[0012]
In particular, at the site of resin molding, the resin residue remaining in the crusher must be cleaned every time the resin material is changed in color. The problem that it is troublesome and the problem that the installation space of a grinder must be taken up also arise.
[0013]
Furthermore, when the size of the pulverizer main body is increased, the driving means and the like are generally increased, and a larger pulverizer than necessary is installed, which raises the problem of increased costs and running costs.
[0014]
The present invention has been made in view of the above-described conventional circumstances, and can automatically cut and divide a large spool runner and then directly put it into the hopper, and further reduce the size of the hopper and the grinder main body. It is an object of the present invention to provide a novel resin molded product take-out device capable of achieving the above.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, a resin molded product take-out apparatus according to claim 1 is a resin for taking out a resin product and a sprue runner from a mold of a molding machine and putting the taken out sprue runner into a hopper of a crusher. In the molded product take-out device, the above A cutting machine disposed above the hopper opening of the crusher and having a cutting blade for cutting the sprue runner And above A sensor provided in a cutting machine that senses whether there is a sprue runner in front of the cutting blade. And a chuck part to which the sprue runner can be attached and detached, A moving take-out arm that moves the sprue and runner gripped by the chuck part up and down and horizontally with respect to the cutting blade. It is characterized by having.
[0016]
In this way, dividing the sprue runner into the hopper is a new technical idea that has never existed before, and by dividing the sprue runner finely, it can be introduced even if the hopper inlet is small. Therefore, the hopper and the grinder main body can be reduced in size.
[0017]
On the other hand, after taking out the sprue runner and putting it into the hopper, there is a molding time such as injection, holding pressure, and cooling time until the next sprue runner is taken out. As a result, the split sprue runner can be put into the hopper of the crusher without changing the time required for one cycle of molding the resin product.
[0018]
Moreover, the required power of the pulverizer can be reduced by dividing the sprue runner into the hopper.
[0019]
Conventionally, there is no resin molded product take-out device equipped with a cutting machine. By providing a separate cutting machine, a series of operations from taking out the sprue and runner to dividing and feeding it with just the resin molded product take-out device. Can be done as a work.
[0020]
Further, by providing a separate cutting machine, it is possible to cut and divide the arbitrary position of the sprue runner regardless of the direction in which the sprue runner is placed.
Also, above Thus, since the sprue runner is cut at the upper part of the hopper of the crusher, the divided sprue runner can be put into the hopper without the divided pieces flying out of the crusher.
[0021]
Also, above In this way, the sprue runner can be displaced to the position where the divided pieces that fall after being divided can always be thrown into the inlet of the hopper as described above. However, the sprue and runner gripped by the chuck portion can be cut several times or sequentially from any direction according to the size, shape, etc., and all of the divided pieces can be reliably put into the hopper. . Therefore, the opening of the hopper can be made smaller, and the pulverizer can be downsized.
[0022]
Also, as above By providing the sensor, the cutting blade can automatically cut according to the position and orientation of the sprue / runner.
[0023]
Claim 2 The resin molded product take-out device according to claim 1 In the resin molded product take-out device described in 1., the forward / backward moving means for moving the cutting blade back and forth with respect to the sprue / runner fixed above the hopper opening of the crusher and the cutting angle of the cutting blade can be changed. A cutting angle changing means, wherein the cutting angle changing means positions the center of the cutting blade eccentrically with respect to the central axis of the forward / backward moving means, and the cutting blade is centered on the central axis. It is provided to be rotatable.
[0024]
The sprue / runner can be cut by such a back-and-forth moving means, and the direction of the cutting blade can be changed according to the direction of the sprue / runner by the cutting angle changing means.
[0025]
Also, above Thus, by providing a cutting blade rotatably with respect to the sprue runner, the sprue runner can be easily cut and divided in a state where the chuck portion is fixed. Also, According to this, when the sprue runner has a shape extending radially from the center, the sprue runner can be easily cut and divided by fixing the center of the sprue runner and rotating the cutting blade. .
[0026]
Claim 3 The resin molded product take-out device according to claim 1 or 2 In the resin molded product take-out device described in item 1, the cutting blade is a nipper-shaped cutting blade.
[0027]
In this way, by adopting a nipper-shaped cutting blade, it is possible to prevent the cutting piece at the time of cutting of the sprue and runner from being bitten into the cutting blade, unlike the bowl-shaped cutting blade. The blades can be used continuously without frequent cleaning.
[0028]
Claim 4 The resin molded product take-out device according to claim Any one of 1 to 3 The resin molded product take-out apparatus according to claim 1, further comprising a controller that controls the cutting machine, wherein the cutting machine is controlled by the controller to automatically perform positioning, cutting, and the like of the sprue and runners. It is characterized by.
[0029]
in this way, A controller to control the cutting machine By providing it, the entire operation of the cutting machine can be controlled by the controller, so that it can be cut immediately upon receiving a positioning completion signal from the controller to the cutting position, and wasteful time from positioning to cutting is saved. be able to.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a resin molded product take-out device according to the present invention will be described with reference to the drawings.
[0031]
FIG. 1 is a schematic view of a resin molding apparatus provided with a resin molded product take-out device showing an embodiment of the present invention, FIG. 2 is an explanatory view showing the operation of the resin molded product take-out device, and FIG. 3 is a resin molded product take-out FIG. 4 is a plan view of the cutting machine provided in the resin molded product take-out device, FIG. 5 is a side view of the cutting machine provided in the resin molded product take-out device, and FIG. FIG. 7 is a perspective view of the sprue / runner, FIG. 8 is an explanatory view of cutting of the sprue / runner by the cutting blade, and FIG. 9 is the trajectory of the cutting blade. FIG. 10 is a perspective view showing a case where a sprue / runner of another shape is cut and divided, FIG. 11 is a perspective view showing another example of a cutting blade, and FIG. 12 is a conventional resin. It is a perspective view which shows the state provided with the cutting machine in the molding machine.
[0032]
The resin molding apparatus shown in FIG. 1 and FIG. 2 provided with the resin molded product take-out device of the present embodiment includes a molding machine 10 for molding a resin molded product A by filling a resin molding die with a resin material, and the resin molding. The resin molded product A molded in the mold and the sprue runner S which is a molding accessory are separated and taken out, and the resin molded product take-out device 20 that cuts finely with the cutting machine 1 and the resin molded product take-out device 20 take it out. Then, the sprue runner S that has been finely cut by the cutting machine 1 is introduced, and the reduced product 30 is produced by successively crushing it to the appropriate size to produce the reduced material, and the resin product A in the next step. Transport The product conveyor 40 and the control panel 50 that manages the operation control of these resin molding apparatuses are illustrated as examples. The specific configurations will be sequentially described below.
[0033]
The molding machine 10 is capable of charging a resin material from the input section 11 and then filling the resin material melted in the molding machine 10 into the resin molding die 12 to mold any resin product A. Ah Can be adopted.
[0034]
The resin molded product take-out device 20 includes a long arm 21 installed in the X-axis direction, a first working arm 23 and a first work arm 23 that can traverse along the long arm 21 and are vertically movable in the Z-axis direction. The two work arms 24 and the cutting machine 1 with the cutting blade 2 facing the Y-axis direction on the second work arm 24 side in the vicinity of the center of the lower surface of the long arm 21 are basically configured. In addition, a chuck portion 26 to which the sprue and runner S can be attached and detached is provided at the lower end of the second work arm 24.
[0035]
Each component in the resin molded product take-out device 20 is controlled in operation by a controller 27 attached to the long arm 21, and this control information is managed by the control panel 50.
[0036]
The illustrated example illustrates a servo-type resin molded product take-out device 20 that uses an AC servo motor as a drive for moving in the X-axis, Y-axis, and Z-axis directions, but is not limited thereto. It is not something.
[0037]
The crusher 30 is installed below a hopper 32 having a material inlet 31 opened upward, and below the hopper 32. The crusher 30 rotates a crushing rotary blade (not shown) by the driving means 33 to crush the sprue runner S. The pulverizer body 34 is configured.
[0038]
Product conveyor 40 takes resin product A to the next process Transport It is installed to stock the resin product A on the product conveyor 40 for a certain period of time. In this example, an existing belt conveyor is displayed. A packing machine for product A may be installed.
[0039]
Further, the product conveyor 40 is also connected to the controller 27 provided in the resin molded product take-out device 20 to exchange information.
[0040]
The control panel 50 is connected to the controller 27, manages all operation information of the molding machine 10, the resin molded product take-out device 20, the product conveyor 40, and the cutting machine 1, and monitors all control information held by the controller 27. A possible screen 51 and operation keys 52 for freely changing, setting, and registering the control information are provided. The operation of the resin molded product take-out apparatus 20 in the resin molding apparatus configured as described above will be described with reference to FIG. First, the first working arm 23 and the second working arm 24 of the resin molded product take-out device 20 are on standby on the mold of the molding machine 10, and after the molding of the resin product is completed, the second working arm 24 moves downward. Then, the sprue runner S is gripped by the tip chuck portion 26 and moved upward to take out the sprue runner S from the mold. On the other hand, the first work arm 23 moves downward, the resin product A is gripped by the chuck portion 25 at the tip thereof, moves upward, and is taken out of the mold.
[0041]
In a state where the sprue runner is gripped, the second working arm 24 is laterally moved along the long arm 21, and when the sprue runner S reaches the front position of the cutting blade 2 of the cutting machine 1, The movement is stopped, and the second work arm 24 is lowered to a predetermined position to place the sprue runner S.
[0042]
When the sprue runner S is cut and divided by the cutting blade 2 while the sprue runner S is stationary, the cut piece s naturally falls on the material inlet 31 of the hopper 32 and is crushed.
[0043]
Further, the remaining sprue runner S held by the chuck part 26 after cutting is similarly put into the material inlet 31 and crushed by opening the chuck part 26.
[0044]
As indicated by the alternate long and short dash line in the figure, if the center of the material inlet 31 of the hopper 32 is positioned in advance on the vertical line where the sprue / runner S is cut, the sprue / runner S can be introduced. If the cutting position and the material inlet 31 are close to each other, the charging can be performed more reliably.
[0045]
Further, after the cutting operation of the sprue runner S, the resin product A is laterally moved along the long arm 21 and transferred to the product conveyor 40 by the first working arm 23.
[0046]
If the sprue runner S thus taken out from the mold is cut by the cutting machine 1, the sprue runner S is separated from the resin product A before being put into the hopper 32 of the crusher 30. After being further finely divided than the shape in FIG. Below, the specific description of the cutting machine 1 in the resin molded product extraction apparatus 20 which concerns on this invention is given.
[0047]
3-6 is each figure which showed one Example of the said cutting machine 1, The nipper-like cutting blade 2 provided in the front-end | tip in order to cut | disconnect the sprue runner S, and this cutting blade 2 are shown. Hopper 32 Above And a forward / backward moving means 3 for moving back and forth with respect to the sprue runner S placed on the cutting edge 2 and a cutting angle changing means 4 capable of changing the angle at which the cutting blade 2 cuts.
[0048]
The cutting blade 2 is attached to the tip of the cylindrical body 5, and the base of the cylindrical body 5 is fixed to the substantially central portion of the holding plate 7 attached to the front surface of the base plate 6 having a substantially triangular shape when viewed from the front. .
[0049]
The base plate 6 is configured so as to move back and forth with the holding plate 7, the cylindrical body 5, and the cutting blade 2 by the back-and-forth moving means 3 using a hydraulic or air cylinder with respect to the cutting machine body 8.
[0050]
The base plate 6 is disposed on one side of the rotary disk body 9 so as to be movable back and forth. The rotary disk body 9 is supported by three-way rollers 9a, 9b, 9c provided on the front surface of the cutting machine body 8. Thus, the cutting angle changing means 4 is configured by rotating in the circumferential direction and rotating the rotating disk body 9 with a drive motor.
[0051]
Reference numerals 9d and 9d in the figure are guide pins for guiding the back-and-forth movement of the cutting blade 2, and these guide pins 9d and 9d are inserted into through holes 6a and 6a formed on both sides of the base plate 6, respectively. The base plate 6 moves back and forth along the guide pins 9d and 9d so that the cutting blade 2 moves back and forth.
[0052]
Further, a sensor 7 a capable of detecting the sprue runner S in front of the cutting blade 2 is installed on the lower surface of the holding plate 7.
[0053]
Moreover, the upper surface of the cutting machine body 8 is a flat surface, and mounting holes for attaching the cutting machine 1 to other members are opened at appropriate positions on the upper surface.
[0054]
Each operation of the cutting machine 1 configured as described above can be centrally controlled by directly relating to the controller 27, and a cutting machine controller shown as 27 'in the figure is separately provided to control this. The cutting machine controller 27 ′ can be distributedly controlled in relation to the controller 27.
[0055]
A process of cutting and dividing the sprue runner S with the cutting machine 1 configured as described above will be described with reference to FIGS.
[0056]
As shown in FIG. 2, when the chuck portion 26 of the second working arm 24 grips the sprue runner S with four legs extending radially from the center as shown in FIG. 7, for example, as shown in FIG. Gripping any one leg S2 of the legs S2, S3, S4... (Also called runners) of the sprue runner S extending radially.
[0057]
The second work arm 24 moves in this gripping state, and the sprue runner S is positioned on the hopper 32 of the crusher 30 according to the input information, and this positioning completion signal is sent to the cutting machine controller 27 '(27 ) Receive.
[0058]
Upon receipt of this completion signal, the cutting blade 2 of the cutting machine 1 is advanced by the forward / backward moving means 3, approaches the sprue runner S, and first cuts the legs S 3 (or S 5) extending radially of the sprue runner S. To do.
[0059]
By this cutting, the divided piece s is divided into the sprue runner S, dropped into the opening 31 of the hopper 32 placed under it, and crushed in the pulverizer 3.
[0060]
Next, the rotating disk body 9 is rotated by the cutting angle changing means 4, and when the sensor 7a senses another adjacent leg S4, the rotation is stopped, and the leg S4 is cut in the same manner as described above. The divided pieces s are put into the hopper 32 and pulverized.
[0061]
Similarly, the legs S5 (or S3)... Are sequentially cut, and the divided pieces s are put into the hopper 32 and crushed.
[0062]
Then, after cutting all the legs S3, S4, S5... And releasing the chuck portion 26, all the remaining sprue runners S (S1 and S2) are put into the hopper 32, and all the sprue The runner S can be crushed. A trajectory L through which the cutting blade 2 passes is indicated by a broken line in FIG.
[0063]
Further, even if the outer shape of the sprue runner S is very large or complicated, the second work arm 24 and / or the cutting machine 1 is divided by the cutting and dropped. Since s can always be displaced to a position where it can be put into the hopper, the legs S3, S4, etc. can be further divided and cut, or can be cut from any direction. Even sprue and runners S of various sizes, shapes, etc. can be easily and accurately cut and divided. In the present embodiment, the sprue runner S extending radially from the center as described above is described. However, the sprue runner S having other shapes as shown in FIG. 10 is cut. Of course, it can be divided.
[0064]
Further, as the cutting blade 2, since the nipper-shaped cutting blade 2 is provided, the sprue / runner S is pushed out, and the cutting edge can be prevented from biting into the cutting blade 2. 2 can be used continuously without frequent cleaning.
[0065]
Of course, when it is not necessary to obtain such an effect, it is also possible to attach a knurled cutting blade 2 for cutting with a shearing force as shown in FIG.
[0066]
Furthermore, as shown in FIG. 12, the cutting machine 1 can be adapted to a conventional resin molding apparatus by attaching it with a support arm or the like just above the hopper of the take-out robot in the conventional resin molding apparatus.
[0067]
Further, the cutting machine 1 can be separated from the resin molded product take-out device 20, and the cutting machine 1 can be provided on the hopper 32 of the crusher 30 to cope with it.
[0068]
【The invention's effect】
As described above, according to the resin molded product take-out device of the first aspect of the invention, the sprue runner is separated from the resin product before the taken-out sprue runner is put into the hopper of the crusher. As a technical idea of dividing the sprue runner into finer pieces than before, it is a new idea that has never been seen before. Thus, by dividing the sprue runner finely, the sprue is larger than the opening of the hopper. -Even runners can be put directly into the hopper.
[0069]
In addition, since the sprue runner is finely divided and then charged into the hopper, it can be charged even if the hopper inlet is small, and the hopper and pulverizer main body can be reduced in size, thereby saving energy.
[0070]
Therefore, the hopper can be easily cleaned in the color changing operation of the resin material, and the space of the pulverizer can be saved.
[0071]
Also, after taking out the sprue runner and putting it into the hopper, there is a molding time such as injection, holding pressure, and cooling time until the next sprue runner is taken out, but the sprue runner is cut within this time As a result, the sprue runner divided can be thrown into the hopper of the crusher without changing the time required for one cycle of molding the resin product.
[0072]
Also , Before the removed sprue runner is put into the hopper of the crusher, it is provided with a cutting machine that splits the sprue runner into finer parts than the state in which it is separated from the resin product and then throws it into the hopper There is no resin molded product take-out device equipped with such a cutting machine, and it is possible to cut an arbitrary position of the sprue / runner by providing a separate cutting machine regardless of the direction in which the sprue / runner is placed. Can be divided.
[0073]
Also As a means to divide the sprue runner into the hopper of the crusher, the sprue runner is removed from the mold by a moving take-out arm equipped with a chuck part that can be attached and detached. transfer In addition, since the cutting blade provided in the cutting machine cuts at the upper part of the hopper of the crusher, in this way, the sprue runner is cut at the upper part of the hopper of the crusher, so that the divided pieces are not scattered outside the crusher. The split sprue runner can be put into the hopper.
[0074]
Also The moving take-out arm provided with the chuck part allows the sprue / runner to be displaced to a position where the divided pieces that are divided and dropped can always be introduced with respect to the inlet of the hopper. Even if it is a sprue / runner of shape, the sprue / runner gripped by the chuck part can be cut several times or sequentially from any direction according to its size and shape, etc. Can be put into the hopper. Therefore, the opening of the hopper can be made smaller, and the pulverizer can be downsized.
Also Since the sensor is provided in the cutting machine, the cutting blade can automatically cut in accordance with the position and orientation of the sprue / runner.
[0075]
Claim 2 According to the resin molded product take-out device according to the invention described above, the cutting blade is moved back and forth with respect to the sprue runner placed above the hopper opening of the crusher, and the cutting blade is cut. A cutting angle changing means capable of changing the angle of the cutting blade, wherein the cutting angle changing means is positioned by decentering the center of the cutting blade with respect to the central axis of the forward / backward moving means, and centering the central axis Since the cutting blade is rotatably provided, the cutting blade cuts the sprue / runner by the forward / backward moving means, and the cutting blade orientation is adjusted according to the direction of the sprue / runner by the cutting angle changing means. Can be changed.
[0076]
Also Since the cutting blade is rotatably provided, the sprue runner can be easily cut and divided in a state where the chuck portion is fixed by rotating the cutting blade with respect to the sprue runner.
[0077]
Also The center of the cutting blade with respect to the central axis of the forward / backward moving means Eccentric Since the cutting blade is provided so as to be rotatable about the central axis, when the sprue runner has a shape extending radially from the center, the center of the sprue runner is fixed. If the cutting blade is rotated, the sprue runner can be easily cut and divided.
[0078]
Claim 3 According to the resin molded product take-out apparatus according to the invention described above, by using a nipper-shaped cutting blade as the cutting blade, the cutting piece at the time of cutting the sprue runner is prevented from biting into the cutting blade. It can be used continuously without frequently cleaning the cutting blade.
[0079]
Claim 4 According to the resin molded product take-out device according to the invention described in A controller for controlling the cutting machine is further provided. Therefore, the entire operation of the cutting machine can be controlled by the controller, so that it can be cut immediately upon receiving a positioning completion signal from the controller to the cutting position, so that wasted time from positioning to cutting is eliminated. It can be omitted.
[Brief description of the drawings]
FIG. 1 is a schematic view of a resin molding apparatus provided with a resin molded product take-out apparatus according to an embodiment of the present invention.
FIG. 2 is an explanatory view showing the operation of the resin molded product take-out device.
FIG. 3 is a perspective view showing a cutting machine provided in the resin molded product take-out device.
FIG. 4 is a plan view showing a cutting machine provided in the resin molded product take-out device.
FIG. 5 is a side view showing a cutting machine provided in the resin molded product take-out device.
FIG. 6 is a front view showing a cutting machine provided in the resin molded product take-out device.
FIG. 7 is a perspective view of a sprue runner.
FIG. 8 is an illustration of cutting a sprue runner with a cutting blade.
FIG. 9 is a cutting explanatory view showing the trajectory of the cutting blade.
FIG. 10 is a perspective view showing a case where another sprue runner is cut and divided.
FIG. 11 is a perspective view showing another example of the cutting blade part.
FIG. 12 is a perspective view showing a state in which a conventional resin molding machine is equipped with a cutting machine.
FIG. 13 is a perspective view showing a conventional resin molding apparatus.
FIG. 14 is a perspective view showing a state in which a sprue runner is cut and divided in a hopper in a conventional resin molding apparatus.
[Explanation of symbols]
1 Cutting machine
2 Cutting blade
3 Forward / backward moving means
4 Cutting angle moving means
10 Molding machine
12 Mold
20 Plastic molded product take-out device
30 Crusher
32 hopper
S sprue runner
A resin products

Claims (4)

Resin product and sprue runner are removed from the mold of the molding machine, and this sprue runner is put into the hopper of the crusher.
A cutting machine disposed above the hopper opening of the crusher and having a cutting blade for cutting the sprue runner ;
A sensor provided in the cutting machine for sensing whether there is a sprue runner in front of the cutting blade ;
A resin molding comprising a chuck part to which the sprue and runner can be attached and detached, and a moving take-out arm that moves the sprue and runner gripped on the chuck part up and down and horizontally with respect to the cutting blade. Product take-out device. It further comprises a back-and-forth moving means for moving the cutting blade back and forth with respect to a sprue / runner placed above the hopper opening of the crusher, and a cutting angle changing means capable of changing the cutting angle of the cutting blade. And
The cutting angle changing means is characterized in that the center of the cutting blade is decentered with respect to the central axis of the front-rear moving means, and the cutting blade is provided rotatably about the central axis. The resin molded product take-out device according to 1.   3. The resin molded product take-out device according to claim 1, wherein the cutting blade is a nipper-shaped cutting blade. A controller for controlling the cutting machine;
4. The resin molded product take-out device according to claim 1, wherein the cutting machine is controlled by the controller to automatically position and cut the sprue runner.

Images