KR20230033095A - Injection molding system with recycled pallet available - Google Patents

Abstract

According to one embodiment of the present invention, an injection-molding system capable of using recycled pellets sorts and collects by-products or defective molded products from normal injection-molded products, produces recycled pellets through grinding, automatically mixes the recycled pellets with raw-material pellets at a predetermined mixing ratio, and supplies the mixture thereof to the injection-molding system. Accordingly, production costs can be reduced by increasing the recyclability of injection-molding materials, and waste of manpower can be reduced and work efficiency can be increased by eliminating the need for a manual operation performed by workers in a process of mixing the raw-material pellets with the recycled pellets.

Description

Injection molding system with recycle pallet available {INJECTION MOLDING SYSTEM WITH RECYCLED PALLET AVAILABLE}

The present invention relates to an injection molding system, and more particularly, in an injection molding system, by-products or defective moldings are classified and collected from normal injection moldings, and then produced as recycling pallets through crushing, and recycling pallets and raw material pallets are preset. It is automatically mixed according to the mixing ratio and supplied to the injection molding system to increase the recyclability of the injection molding material, thereby reducing cost, and reducing the waste of manpower by eliminating the need for manual labor in the process of mixing raw material pallets and recycled pallets. It relates to an injection molding system capable of using recycled pallets to increase work efficiency.

In general, as shown in FIG. 1, various electrical switching elements for opening and closing circuits such as circuit breakers, earth leakage circuit breakers, circuit breakers, magnetic contactors and switches, and overload relays are used in power system lines or connection system lines.

On the other hand, the housings of various electrical switching devices as described above are mostly formed of synthetic resin of insulating material. are produced through

At this time, the above molding materials are supplied and used by raw material pallets manufactured in the form of pallets of a certain size or less provided from molding material suppliers, etc., and when by-products of molded products or defective moldings occur during the injection process, defective moldings are generated. Recycled pallets, in which moldings and by-products are processed into pallets, are sometimes mixed with raw material pallets.

However, in the case of a recycled pallet produced by crushing by-products in the molding process to a certain size, the grain size is larger than that of the raw material pallet. If the mixture is not mixed in a certain ratio or the mixture is not properly mixed, defects may occur in the molded product.

Accordingly, prior to supplying the pallets to the injection molding machine, manual work is required to mix the recycled pallets and the raw material pallets one by one at the site so that the pallets can be evenly mixed, which reduces work efficiency and requires unnecessary manpower in the process of mixing the pallets. There was a problem with wastage.

Figure 2 shows the concept of mixing and loading raw material pallets and recycled pallets in the material supply cylinder supplied to the catapult. There was a problem in that manpower was wasted in preliminary work, such as having to mix sufficiently, and the occurrence of defective moldings increased when the recycled pallet and the raw material pallet were not uniformly mixed due to differences in mixing work skills for each worker.

Republic of Korea Patent Registration No. 10-1539966 (registration date July 22, 2015)

Therefore, an object of the present invention is to classify and collect by-products or defective moldings from normal injection moldings in an injection molding system, produce recycled pallets through grinding, and automatically mix recycled pallets and raw material pallets according to a preset mixing ratio. By increasing the recyclability of injection molding materials and supplying them to the injection molding system, cost reduction is achieved, and manual labor is not required in the process of mixing raw material pallets and recycled pallets, thereby reducing manpower waste and improving work efficiency. It is to provide an injection molding system that can use recycled pallets.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

An injection molding system capable of using recycled pallets according to the present invention includes an injection molding unit for producing a target injection molding product having a predetermined specific shape, a first supply unit for supplying a raw material pallet that is a molding material of the target injection molding unit, and the target injection molding unit. A second supply unit for supplying a reclaimed pallet obtained by pulverizing a medium defective molding product or a by-product generated during injection molding; a mixing unit for mixing the raw material pallet supplied from the first supply unit and the reclaimed pallet supplied from the second supply unit; It includes a molding material storage unit for storing the mixed mixing pallet, and a third supply unit for supplying the mixing pallet stored in the molding material storage unit to the injection molding unit, wherein the second supply unit includes the raw material input to the mixing unit. Based on the first supply amount of the pallet, a second supply amount of the recycled pallet such that the mixing ratio of the raw material pallet and the recycled pallet is a predetermined reference ratio may be supplied to the mixing unit.

In addition, the second supply unit includes a loading unit for loading the recycling pallet, a recycling pallet discharge unit located below the loading unit and discharging the recycling pallet to the mixing unit, and a first raw material pallet fed into the mixing unit. Based on 1 supply amount, the second supply amount of the recycled pallet is calculated in real time so that the mixing ratio of the raw material pallet and the recycled pallet becomes a preset reference ratio, and the recycled pallet discharge unit is controlled to control the recycled pallet loaded in the loading unit. It may include a recycled pallet injection unit for supplying pallets by the second supply amount to the mixing unit.

In addition, the mixing unit includes a mixing tank for storing the raw material pallet and the regeneration pallet, a mixing wing unit installed at the center of the mixing tank and mixing the raw material pallet and the reproduction pallet for a predetermined first reference time, and the mixing unit. A mixing pallet discharge unit located at the lower part of the tank and discharging the mixed pallet to the lower part of the mixing vessel, and when the driving time of the mixing wing unit reaches the first reference time, the mixing pallet discharge unit controls the mixing pallet and a mixing control unit for discharging the mixing pallet, and the mixing pallet discharging unit may be located above the molding material storage unit so that the mixing pallet is loaded into the molding material storage unit.

In addition, the mixing control unit increases the first reference time by a first offset time according to a preset first ratio when the third supply amount obtained by adding the first supply amount and the second supply amount is greater than the preset reference summed supply amount. It is newly set as the second reference time, and the mixing wings can be controlled to operate during the second reference time.

In addition, the system includes a defect detection unit for inspecting whether a defect has occurred in the target injection-molded product produced from the injection molding unit, a first transfer unit for transporting the target injection-molded product along a first path, and the defective molded product. A second transfer unit for transporting the target injection-molded products along a second path, a sorting unit for moving the defective moldings detected as defective among the target injection-molded products from the first path to a second path, and located at an end of the second path, A first accommodating unit for accommodating the defective moldings, a pulverizing unit for pulverizing the defective moldings stored in the first accommodating unit to produce the recycled pallets, and supplying the pulverized recycled pallets through the pulverizing unit to the second supply unit. It may further include a fourth supply to provide.

In addition, the defect detection unit may include an image storage unit for storing a first appearance image when the target injection molding product is normal, and an appearance of the target injection molding discharged from the injection molding unit in a predetermined section on the first path. and a camera for generating a second appearance image by taking a picture, and a comparison unit comparing the first appearance image and the second appearance image to examine whether the target injection-molded product is a defective molding, wherein the classifying unit includes the defective molding. Installed at a rear end of the detection unit, among the target injection-molded products moving along the first path, the target injection-molded product determined to be defective may be moved from the first path to the second path.

In addition, the system further includes a third transport unit for transporting the by-products to a third path, and a second storage unit located at an end of the third path and storing the by-products, wherein the crushing unit transports the by-products to the The recycled pallets can be produced by crushing together with the defective moldings.

In addition, the mixing wing unit is installed in the mixing tank, and is formed to horizontally cross the mixing tank and rotates, and is disposed in a direction perpendicular to the center axis to rotate the inside of the mixing tank along the rotation of the center axis. While rotating in may include a plurality of blades for mixing the raw material pallet and the reproduction pallet.

In addition, the mixing wing unit may include a roller that is disposed between the blades and installed orthogonally to the central axis to rotate.

In addition, the roller may be formed with a plurality of protrusions protruding from the outer circumferential surface and spaced apart at regular intervals.

In addition, the injection molding unit includes a mold for generating the target injection molding, an extrusion supply unit for converting the mixing pallet into a molten state according to manufacturing conditions of the target injection molding, and supplying the mixture to the mold, and supplied from the third supply unit. A hopper for supplying the mixing pallet to the extrusion supply unit, a mold driving unit for controlling the operation of the mold performing injection molding, and a heating unit for heating the mixing pallet injected into the extrusion supply unit to a predetermined first temperature. And, based on the first temperature, the mixing pallet calculates a target extrusion pressure value supplied from the extrusion supply unit to the mold, and controls the extrusion supply unit to control the mixing pallet to be extruded at the target extrusion pressure value An injection molding control unit may be included.

In addition, the injection molding unit further includes a mold temperature sensor for measuring a second temperature of the mold, and the injection molding control unit, when the mold is stopped for a predetermined period of time or longer and is restarted, the second temperature sensor of the mold The temperature may be measured, and the mixing pallet may be controlled not to be supplied to the mold from the extrusion supply unit until the second temperature reaches a predetermined reference temperature.

According to one embodiment of the present invention, in an injection molding system capable of using recycled pallets, by-products or defective moldings are classified and collected from normal injection moldings, and then produced as recycled pallets through crushing, and the recycled pallets and raw material pallets are mixed in a preset manner. It is automatically mixed according to the ratio and supplied to the injection molding system to increase the recyclability of injection molding materials, thereby reducing costs, and eliminating the need for manual labor in the process of mixing raw material pallets and recycled pallets, thereby reducing manpower waste. to increase efficiency.

In addition to the effects described above, specific effects of the present invention will be described together while explaining specific details for carrying out the present invention.

1 is a diagram illustrating various conventional electrical switching devices.
Figure 2 is a conceptual diagram in which raw material pallets and recycled pallets are mixed and loaded in a material supply cylinder of a conventional injection molding machine.
Figure 3 shows a conceptual diagram of an injection molding system capable of using a recycling pallet according to an embodiment of the present invention.
4 is a detailed block configuration diagram of an injection molding system capable of using a recycling pallet according to an embodiment of the present invention.
5 is a detailed block configuration diagram of an injection molding unit according to an embodiment of the present invention.
6 is a configuration diagram of a mixing tank according to an embodiment of the present invention.
7 is a configuration diagram of a mixing wing unit according to an embodiment of the present invention.
8 is a detailed block configuration diagram of a defect detection unit according to an embodiment of the present invention.

Hereinafter, the operating principle of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification.

Figure 3 shows a conceptual diagram of an injection molding system capable of using a recycling pallet according to an embodiment of the present invention.

Figure 4 shows a detailed block configuration of an injection molding system capable of using a recycled pallet according to an embodiment of the present invention.

5 illustrates a detailed block configuration of an injection molding unit according to an embodiment of the present invention.

6 shows a mixing tank configuration according to an embodiment of the present invention.

7 shows a mixing wing configuration according to an embodiment of the present invention.

8 illustrates a detailed block configuration of a defect detection unit according to an embodiment of the present invention.

Hereinafter, with reference to FIGS. 3 to 8 , the structure and operation of each component of the injection molding system 300 capable of using a recycled pallet according to an embodiment of the present invention will be described in detail.

First, the injection molding unit 320 heats and melts molding materials such as raw material pallets and recycled pallets in a plasticized state, and then injects them into a mold under high pressure to repeatedly produce a target injection molding product having a predetermined specific shape.

At this time, as shown in FIG. 1, the target injection molding 330 may be a housing of various electrical switching elements that open and close circuits such as circuit breakers, earth leakage circuit breakers, distribution board circuit breakers, electromagnetic contactors and switches, and overload relays. However, it is not limited thereto.

As shown in FIG. 5, the injection molding unit includes a hopper 510, an extrusion supply unit 512, a heating unit 514, a mold 516, a mold driving unit 518, a mold temperature sensor 520, and an injection molding control unit ( 524) and the like.

The hopper 510 supplies a mixing pallet in which the raw material pallet supplied from the third supply unit 318 and the recycled pallet are mixed to the extrusion supply unit according to one embodiment of the present invention.

At this time, the raw material pallet means a molding material such as synthetic resin for manufacturing the target injection molding, and may be supplied after being pulverized into a predetermined first size from an external molding material supplier. In addition, the recycled pallet may refer to by-products generated during the manufacture of the target injection-molded product or defective molded products pulverized into a predetermined second size through the pulverizer 344 . The second size of the recycled pallets pulverized in the crushing unit is inevitably larger than the first size of the raw material pallets produced by the molding material supplier specializing in the production of raw material pallets, so when the recycled pallets are mixed with the raw material pallets It is necessary to ensure that the raw material pallet and the recycled pallet are evenly mixed.

In this way, a mixture of the raw material pallet and the recycled pallet may be referred to as a mixing pallet. If the raw material pallet and the recycled pallet are not evenly mixed in the mixing pallet, the target injection molding may be defective or the quality may deteriorate. It is important to do

The extrusion supply unit 512 converts the mixing pallet supplied through the hopper into a molten state according to the manufacturing conditions of the target injection molding product and supplies it to the mold.

The heating unit 514 heats the mixing pallet injected into the extrusion supply unit to a predetermined first temperature so that the mixing pallet is in a molten state that meets the manufacturing conditions of the target injection molding product.

The mold 516 produces a target injection-molded product having a specific shape by high-pressure injection of a mixing pallet, which is a plasticized molding material such as molten resin supplied from an extrusion supply unit. Such a mold may be, for example, a two-stage injection mold including a fixed mold and a movable mold, but is not limited thereto, and may be formed in the form of any injection mold such as a three-stage injection mold as necessary.

The mold temperature sensor 520 measures the second temperature of the mold. These mold temperature sensors may be installed at a plurality of locations on the surface of the mold to measure the second temperature of the mold, or may be implemented as an infrared sensor to measure the second temperature of the mold in a non-contact manner. no.

The mold driving unit 518 drives the mold to press the mixing pallet in a plasticized state injected into the mold to create a target injection-molded product, and controls an operation to separate the target injection-molded product created in the mold from the mold.

The injection molding control unit 524 calculates a target extrusion pressure value at which the mixing pallet is supplied from the extrusion supply unit to the mold based on the first temperature, and controls the extrusion supply unit to extrude the mixing pallet at the target extrusion pressure value.

In addition, the injection molding control unit measures the second temperature of the mold when the mold is operated again after being stopped for a certain period of time, and the mixing pallet is supplied from the extrusion supply unit to the mold until the second temperature reaches a predetermined reference temperature. control so that it does not

That is, for example, when the operation of the injection molding system 300 is stopped until the next operation due to the end of one day's operation, the temperature of the mold decreases, and accordingly, the state in which the mold does not rise to a certain temperature during the next operation When the injection molding operation is executed in the mold, defective moldings may occur until the temperature of the mold reaches the standard temperature. In order to minimize the occurrence of such defective moldings, the injection molding control unit measures the second temperature of the mold when the mold is operated again after being stopped for a certain period of time, and mixes until the second temperature becomes a preset reference temperature. By preventing the pallet from being supplied to the mold from the extrusion feeder, the occurrence of defective moldings is minimized.

The first supply unit 310 supplies a raw material pallet, which is a molding material of a target injection molding, to the mixing unit 314 . The first supply unit collects the raw material pallets, for example, by sucking the raw material pallets from a box (not shown) loaded with the raw material pallets provided from the molding material supplier, and then supplies the collected raw material pallets to the mixing unit. It may, but is not limited thereto.

The second supply unit 312 supplies a recycled pallet obtained by pulverizing defective moldings or by-products generated during injection molding among target injection moldings to the mixing unit. At this time, in supplying the reclaimed pallet to the mixing unit, the second supply unit sets the second supply amount of the reclaimed pallet so that the mixing ratio between the raw material pallet and the reclaimed pallet is a predetermined reference ratio based on the first supply amount of the raw material pallet introduced into the mixing unit. can be supplied to the mixing section.

That is, when the injection molding system operates and the target injection molding starts to be produced, in addition to the normal target injection molding, defective moldings such as broken parts or deformed moldings occur. In the mixing pallet in a molten state, by-products that remain after being made into a target injection molding are generated.

According to one embodiment of the present invention, these defective moldings or by-products are transported through a transport path different from normal target injection moldings, pulverized, and then provided to the second supply unit, and the second supply unit supplies these recycled pallets to the mixing unit. .

As shown in FIG. 4 , the second supply unit may include a loading unit 370, a recycling pallet discharge unit 374, a recycling pallet injection unit 372, and the like.

The loading unit 370 loads the recycling pallets that are pulverized and transported from the crushing unit.

The recycling pallet discharge unit 374 is located below the loading unit and discharges the recycling pallet loaded in the loading unit to the lower portion. The recycling pallet discharge unit may be formed in the form of an open/closed opening installed in the lower portion of the loading unit to discharge the playback pallet to the lower portion of the loading unit through an operation such as opening or closing the opening/closing opening according to the control of the recycling pallet injection unit. However, it is not limited thereto.

The recycled pallet injection unit 372 controls the recycled pallet discharge unit so that the recycled pallet is supplied from the second supply unit to the mixing unit.

In addition, the reclaimed pallet injection unit calculates in real time a second supply amount of the reclaimed pallet so that the mixing ratio of the raw material pallet and the reclaimed pallet becomes a preset reference ratio based on the first supply amount of the raw material pallet introduced into the mixing unit, and discharges the reclaimed pallet. By controlling the unit, the recycled pallets loaded in the loading unit are supplied to the mixing unit by the second supply amount.

In this case, the reference ratio may refer to the highest mixing ratio among the mixing ratio ranges in which the defect rate of the target injection molding product is within a predetermined reference value when the target injection molding product is produced by mixing the raw material pallet and the recycled pallet, but is limited thereto. it is not going to be

The mixing unit 314 mixes the raw material pallet supplied from the first supply unit and the recycled pallet supplied from the second supply unit and supplies them to the molding material storage unit 316 . The mixing pallet stored in the molding material storage unit may be collected by the third supply unit in a suction or the like and supplied to the hopper of the injection molding unit, but is not limited thereto.

As shown in FIG. 4 , the mixing unit may include a mixing tank 380 , a mixing wing unit 382 , a mixing pallet discharge unit 384 , and a mixing control unit 386 .

The mixing tank 380 stores raw material pallets and regeneration pallets supplied from the first supply unit and the second supply unit.

The mixing wing unit 382 is installed in the center of the mixing tank and mixes the raw material pallet and the reclaimed pallet in the mixing tank for a first predetermined reference time.

At this time, this mixing tank may be formed in a cylindrical shape as shown in FIG. 6 and may be a form in which raw material pallets and recycling pallets are loaded, and the mixing wing portion rotates about the central axis 640 inside the mixing tank while rotating the raw material pallet ( 620) and the reproduction pallet 630 may be implemented to mix, but is not limited thereto.

That is, the mixing wing is installed in the mixing tank, for example, as shown in FIG. 6, and is formed to cross the mixing tank horizontally and is arranged in a direction perpendicular to the central axis 640 and the center axis to rotate, It may include a plurality of wings 610 for mixing the raw material pallet and the reproduction pallet while rotating inside the mixing tank along with the rotation.

In addition, in order to more effectively mix the raw material pallet and the recycled pallet, the mixing wing part is disposed between the plurality of blades 610 of the mixing wing part and installed orthogonally to the central axis 640 as shown in FIG. 7 to rotate the roller. It may further include a 710, and such a roller protrudes from the outer circumferential surface and has a plurality of protrusions (not shown) spaced apart at regular intervals to perform an operation of mixing the raw material pallet and the recycled pallet located between the wings once again. can

The mixing pallet discharge unit 384 is located at the bottom of the mixing tank and discharges the mixing pallet to the bottom of the mixing tank.

The mixing pallet discharge unit may be formed in the form of an open/closed opening installed at the lower part of the mixing tank to discharge the mixing pallet to the lower part of the mixing tank through operations such as opening or closing the opening/closing opening under the control of the mixing control unit. , but is not limited thereto.

In this case, the mixing pallet discharge unit may be positioned above the molding material storage unit so that the mixing pallet discharged from the mixing tank is loaded into the molding material storage unit, but is not limited thereto.

The mixing control unit 386 may control the mixing pallet discharging unit to discharge the mixing pallet from the mixing tank when the driving time of the mixing wing part becomes the first reference time.

In addition, the mixing controller may increase the first reference time by the first offset time according to the preset first ratio when the third supply amount obtained by adding the first supply amount and the second supply amount is greater than the preset standard summed supply amount. It is newly set as time, and the mixing wings can be controlled to operate during the second reference time.

The third supply unit 318 supplies the mixing pallet stored in the molding material storage unit to the hopper of the injection molding unit.

The defect detection unit 340 inspects whether a defect has occurred in a target injection-molded product produced from the injection molding unit. At this time, in the defect occurrence inspection, the defect detection unit may compare the external image of the target injection-molded product discharged from the mold of the injection molding unit with the external image of the normal target injection-molded product stored in advance to check whether the defect occurs, but is limited thereto It is not.

As shown in FIG. 8 , the defect detection unit may include an image storage unit 810 , a camera 820 , a comparison unit 830 , and the like.

The image storage unit 810 stores a first appearance image when the target injection-molded product is normal.

The camera 820 captures the exterior of the target injection-molded product discharged from the injection molding unit in a predetermined section on the first path along which the target injection-molded product discharged from the mold is transported, thereby generating a second external image.

The comparator 830 compares the first appearance image with the second appearance image and inspects whether the target injection-molded product is a defective molding product.

The first transfer unit 346 transfers the target injection-molded product discharged from the mold of the injection molding unit 320 along a first predetermined path.

The second transfer unit 348 transfers defective moldings detected as defective by the defect detection unit among the target injection-molded products discharged from the mold of the injection molding unit along a predetermined second path.

The sorting unit 342 is installed at the rear end of the defect detection unit and moves defective moldings detected as defective among the target injection-molded products moving along the first path from the first path to the second path. Accordingly, defective moldings may be transported along the second path by the second transfer unit and collected in the first storage unit 322 located at the end of the second path.

The third transfer unit 350 transports by-products generated in the process of producing a target injection-molded product in the injection molding unit along a preset third path. The by-products transported along the third path may be collected in the second storage unit 324 located at the end of the third path.

The crushing unit 344 crushes the defective moldings stored in the first storage unit or the by-products stored in the second storage unit to produce a recycled pallet. The crushing unit may be a device designed to crush materials such as synthetic resin to a certain size, but is not limited thereto.

The fourth supply unit 352 supplies the recycled pallets pulverized through the crushing unit to the second supply unit.

As described above, according to one embodiment of the present invention, in an injection molding system capable of using recycled pallets, by-products or defective moldings are classified and collected from normal injection moldings, and then produced as recycled pallets through grinding, and the recycled pallets and raw materials are collected. By automatically mixing the pallets according to the preset mixing ratio and supplying them to the injection molding system, the reusability of injection molding materials is increased to reduce costs, and manual labor is not required in the process of mixing raw material pallets and recycled pallets. It can reduce manpower waste and increase work efficiency.

As described above, the present invention has been described with reference to the drawings illustrated, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various modifications are made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that variations can be made. In addition, although the operational effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the corresponding configuration should also be recognized.

310: first supply unit 312: second supply unit
314: mixing unit 316: molding material storage unit
318: third supply unit 320: injection molding unit
322: first storage unit 324: second storage unit
340: defect detection unit 342: classification unit
344: grinding unit 346: first transfer unit
348: second transfer unit 350: third transfer unit

Claims (12)

As an injection molding system capable of using a recycled pallet,
An injection molding unit for producing a target injection molded product having a predetermined specific shape;
A first supply unit for supplying a raw material pallet that is a molding material of the target injection molding;
A second supply unit for supplying recycled pallets obtained by pulverizing defective moldings or by-products generated during injection molding among the target injection moldings;
A mixing unit for mixing the raw material pallet supplied from the first supply unit and the reclaimed pallet supplied from the second supply unit;
A molding material storage unit for storing the mixed mixing pallet;
And a third supply unit for supplying the mixing pallet stored in the molding material storage unit to the injection molding unit,
The second supply unit,
A reclaimed pallet that supplies a second supply amount of the reclaimed pallet so that the mixing ratio of the raw material pallet and the reclaimed pallet becomes a predetermined reference ratio based on the first supply amount of the raw material pallet introduced into the mixing unit is injected into the mixing unit. molding system. According to claim 2,
The second supply unit,
A loading unit for loading the reproduction pallet;
a recycling pallet discharge unit located below the stacking unit and discharging the recycling pallet to the mixing unit;
Based on the first supply amount of the raw material pallet introduced into the mixing unit, a second supply amount of the recycled pallet is calculated in real time so that the mixing ratio of the raw material pallet and the recycled pallet becomes a preset reference ratio, and the recycled pallet discharge unit and a recycled pallet injection unit for controlling and supplying the recycled pallets loaded in the loading unit to the mixing unit by the second supply amount. According to claim 1,
The mixing part,
A mixing tank for storing the raw material pallet and the recycled pallet;
A mixing wing unit installed in the center of the mixing tank to mix the raw material pallet and the regeneration pallet for a predetermined first reference time;
A mixing pallet discharge unit located at the lower part of the mixing tank and discharging the mixed pallet to the lower part of the mixing tank;
A mixing control unit configured to control the mixing pallet discharge unit to discharge the mixing pallet when the driving time of the mixing wing unit is the first reference time,
The mixing pallet discharge unit,
An injection molding system capable of using a recycling pallet located above the molding material storage unit so that the mixing pallet is loaded into the molding material storage unit. According to claim 3,
The mixing control unit,
When the third supply amount obtained by adding the first supply amount and the second supply amount is greater than the preset reference summed supply amount, the first reference time is newly increased by the first offset time according to the preset first ratio as the second reference time. An injection molding system capable of using a regeneration pallet for setting and controlling the mixing blades to be operated for the second reference time. According to claim 1,
The system,
A defect detection unit inspecting whether or not a defect has occurred in the target injection-molded product produced from the injection molding unit;
A first transfer unit for transferring the target injection-molded product along a first path;
a second transport unit for transporting the defective molding along a second path;
a sorting unit for moving the defective molded product detected as defective among the target injection-molded products from the first path to a second path;
a first storage unit positioned at an end of the second path and accommodating the defective molding;
a crushing unit configured to crush the defective moldings stored in the first storage unit to produce the recycled pallet;
A fourth supply unit providing the recycled pallets pulverized through the crushing unit to the second supply unit.
Reclaimed pallet usable injection molding system further comprising a. According to claim 5,
The defect detection unit,
an image storage unit for storing a first appearance image when the target injection-molded product is normal;
A camera for generating a second appearance image by photographing the appearance of the target injection-molded object discharged from the injection molding unit in a predetermined section on the first path;
A comparison unit for comparing the first appearance image and the second appearance image to check whether the target injection-molded product is a defective molding product,
The classification unit,
An injection molding system capable of using a recycling pallet installed at the rear end of the defect detection unit and moving the target injection-molded product determined to be defective among the target injection-molded products moving along the first path from the first path to the second path . According to claim 6,
The system,
A third transfer unit for transferring the by-products to a third path;
It is located at the end of the third path and further includes a second storage unit in which the by-product is stored,
The crushing part,
An injection molding system capable of using a recycled pallet for producing the recycled pallet by crushing the by-product together with the defective molding. According to claim 3,
The mixing wing part,
A central shaft installed in the mixing tank, formed to horizontally cross the mixing tank, and rotating;
An injection molding system capable of using a recycling pallet comprising a plurality of blades disposed in a direction perpendicular to the central axis and mixing the raw material pallet and the recycling pallet while rotating inside the mixing tank along the rotation of the central axis. According to claim 8,
The mixing wing part,
An injection molding system capable of using a recycling pallet, comprising a roller disposed between the blades and installed orthogonally to the central axis to rotate. According to claim 9,
the roller,
An injection molding system capable of using a recycled pallet in which a plurality of projections protruding from the outer circumferential surface and spaced apart at regular intervals are formed. According to claim 1,
The injection molding part,
A mold for generating the target injection molding;
An extrusion supply unit for converting the mixing pallet into a molten state according to manufacturing conditions of the target injection molding and supplying it to the mold;
A hopper for supplying the mixing pallet supplied from the third supply unit to the extrusion supply unit;
A mold driving unit for controlling the operation of the mold performing injection molding;
A heating unit for heating the mixing pallet injected into the extrusion supplying unit to a predetermined first temperature;
Injection molding wherein the mixing pallet calculates a target extrusion pressure supplied from the extrusion supply unit to the mold based on the first temperature, and controls the extrusion supply unit to control the mixing pallet to be extruded at the target extrusion pressure value. An injection molding system capable of using a recycled pallet comprising a control unit. According to claim 11,
The injection molding part,
Further comprising a mold temperature sensor for measuring a second temperature of the mold,
The injection molding control unit,
When the mold is operated again after being stopped for a certain period of time, the second temperature of the mold is measured, and the mixing pallet is supplied from the extrusion supply unit to the mold until the second temperature reaches a predetermined reference temperature. Recycled pallet control to prevent injection molding systems from being used.

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