Multilayer accumulator die for producing IBC barrels and double ring barrels with antistatic coating

Abstract

The invention discloses a multi-layer material storage cylinder die head for producing an IBC barrel and a double-ring barrel with an antistatic coating. The multi-layer material storage cylinder die head comprises a plastic material storage die body, a plastic material storage cavity is arranged in the plastic material storage die body, a plastic molding die mouth connected with the plastic material storage cavity is installed at the bottom end of the plastic material storage die body, a plastic die mouth core lifting rod with a bottom end connected with the plastic molding die mouth is penetrated through the plastic material storage die body, a coating annular material channel is arranged in the plastic molding die mouth, a coating feeding device connected with the coating annular material channel is fixedly installed on the outer side of the plastic molding die mouth, and a coating annular material seam connecting the coating annular material channel and the plastic material storage cavity is arranged on the inner peripheral side of the plastic molding die mouth. The invention can produce an antistatic coating with an extremely thin thickness on the surface of the barrel. Compared with the prior art, the invention is not only very simple to operate without adding additional processing steps, so that the processing efficiency is significantly reduced, but also because of the extremely thin thickness, the production cost can be effectively reduced, and the invention has good promotion value.

Description

Technical Field

[0001] The invention relates to a plastic molding machine, in particular to a multi-layer storage cylinder die head for producing an IBC barrel and a double-ring barrel with an antistatic coating. Background Art

[0002] IBC ton barrels, double-ring barrels and other plastic chemical barrels are all made of ultra-high molecular high-density polyethylene. They have various colors, beautiful appearance, acid and alkali resistance, corrosion resistance, leakage resistance, no fading, no deformation, low price and good quality. They are the most ideal corrosion-resistant storage and transportation equipment for chemical liquids today. They are widely used in chemical, pharmaceutical, food, coating, grease and other industries. They have become an essential tool for modern warehousing and transportation of liquid products, which can greatly reduce production, storage, transportation and operation costs, and save a lot of manpower and material resources.

[0003] Plastic chemical barrels such as IBC ton barrels and double-ring barrels have static electricity hazards during the filling process. Specifically: since this type of chemical barrel is made of plastic, the outer surface of the barrel is in contact with the outside world during transportation, and static charge accumulates on the surface. When the static electricity accumulates to a certain level, brush-type discharge may occur. The energy of the brush-type discharge can reach up to 10MJ. If this brush-type discharge happens to be near the barrel mouth, it may ignite the flammable vapor emitted from the barrel mouth, and backfire to cause a flash explosion inside the barrel.

[0004] To solve this problem, chemical barrels with antistatic coatings are currently used for filling, which can effectively prevent static electricity. At present, chemical barrels with such antistatic coatings are rare in the market. At present, they are mainly achieved by coating a layer of antistatic material on the outer layer of the chemical barrel after molding. However, since the thickness of the antistatic coating increased by coating in the prior art is relatively thick, and the price of the raw materials of the coating with special functions is relatively high, the production cost of the chemical barrel will be increased, and an additional processing step will be added, resulting in low processing efficiency; and the coating material is added to the outer plastic flow channel through the traditional multi-layer storage cylinder die head. Although this method can reduce the processing steps and improve efficiency, the thickness of the coating added by this method is difficult to be extremely thin (thickness is 0.1-0.15mm), and the cost is relatively high. Therefore, our company designs a multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings, which has reasonable design, simple operation and can produce an extremely thin antistatic coating on the outer layer of the barrel.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with anti-static coatings, including a plastic storage die body, a plastic storage cavity is arranged in the plastic storage die body, a plastic molding die mouth connected to the plastic storage cavity is installed at the bottom end of the plastic storage die body, a plastic die mouth core lifting rod with a bottom end connected to the plastic molding die mouth is penetrated through the plastic storage die body, a coating annular material channel is arranged in the plastic molding die mouth, a coating feeding device connected to the coating annular material channel is fixedly installed on the outer side of the plastic molding die mouth, and a coating annular material seam connecting the coating annular material channel and the plastic storage cavity is arranged on the inner circumference of the plastic molding die mouth.

[0007] As a preferred technical solution, the plastic material storage mold body includes a plastic outer layer feed port and a plastic inner layer feed port, and an inner layer plastic flow channel for introducing the inner layer plastic into the plastic molding die is arranged corresponding to the plastic inner layer feed port, and an outer layer plastic flow channel for introducing the outer layer plastic into the plastic molding die is arranged corresponding to the plastic outer layer feed port.

[0008] As a preferred technical solution, the plastic storage mold body includes an injection storage cylinder body, a material injection connector is fixedly installed on the top of the injection storage cylinder body, a storage core rod is arranged in the injection storage cylinder body, the plastic mold core lifting rod is sleeved in the storage core rod, a core rod bushing is installed on the outer periphery of the storage core rod, a plastic injection plug that moves up and down in the plastic storage cavity is installed outside the core rod bushing, a storage cylinder sleeve is installed between the plastic injection plug and the inner wall of the injection storage cylinder body, the inner layer plastic flow channel is arranged between the core rod bushing and the storage core rod and connects the plastic inner layer feed port and the injection storage cylinder body, and the outer layer plastic flow channel is arranged between the storage cylinder sleeve and the inner wall of the injection storage cylinder body and connects the plastic outer layer feed port and the injection storage cylinder body.

[0009] As a preferred technical solution, an injection push rod is fixedly installed on the top of the plastic injection plug, and the top of the injection push rod extends outside the plastic storage mold body and is connected to an injection cylinder that drives the injection push rod to move up and down; the top of the plastic mold core lifting rod is installed with a thickness adjustment cylinder that drives the plastic mold core lifting rod to move up and down.

[0010] As a preferred technical solution, the plastic molding die includes a plastic discharge core mold fixedly connected to the bottom end of the plastic die core lifting rod, and the plastic discharge core mold is provided with a matching plastic discharge receiving body and a plastic discharge port mold outside the plastic discharge core mold. The plastic discharge receiving body and the plastic discharge port mold are successively installed at the bottom end of the plastic storage die body, the coating annular material channel and the coating annular material seam are both arranged on the plastic discharge receiving body, the coating feeding device is fixedly installed on the outside of the plastic discharge receiving body, and the plastic discharge receiving body is also provided with a coating channel connecting the coating feeding device and the coating annular material channel.

[0011] As a preferred technical solution, the plastic discharge receiving body includes an upper receiving body and a lower receiving body that cooperate with each other, the coating annular material channel and the coating annular material seam are both arranged on the matching surface between the upper receiving body and the lower receiving body, and the coating channel is arranged on the upper receiving body.

[0012] As a preferred technical solution, the coating feeding device includes a coating injection cylinder, a coating feeding device and a coating discharging device which are fixedly connected in sequence, and the discharging end of the coating discharging device is connected to the outside of the plastic molding die and is connected to the coating annular material channel.

[0013] As a preferred technical solution, the coating feeding device includes a coating feeding cylinder body, a coating feeding connector is installed on one side of the coating feeding cylinder body, the coating discharging device is installed on the other side of the coating feeding cylinder body, a coating feeding rod is installed in the coating feeding cylinder body, a coating flow channel groove is provided on the outer surface of the coating feeding rod, a coating rod bushing is provided outside the coating feeding rod, a coating feeding plug is provided between the coating rod bushing and the inner wall of the coating feeding cylinder body, and an anti-static medium inlet connected to the coating flow channel groove is provided on the coating feeding connector.

[0014] As a preferred technical solution, the coating discharging device includes a coating discharging core mold arranged at the end of the coating feeding rod, and a coating discharging port mold matching with it and connected to the end of the coating feeding cylinder is arranged outside the coating discharging core mold, and an anti-static medium outlet connected to the coating annular material channel is arranged at the tail end of the coating discharging port mold.

[0015] As a preferred technical solution, the coating injection cylinder includes a coating injection cylinder body, a coating injection piston is installed in the coating injection cylinder body, the coating injection piston is fixedly connected to a coating injection piston rod, the bottom end of the coating injection piston rod is fixedly installed with a coating injection top plate, the bottom end of the coating injection top plate is fixedly installed with a coating injection push rod, the tail end of the coating injection push rod extends into the coating feed cylinder body and is fixedly connected to the coating feed plug.

[0016] Due to the adoption of the above technical scheme, a multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings comprises a plastic storage die body, a plastic storage cavity is arranged in the plastic storage die body, a plastic molding die mouth communicating with the plastic storage cavity is installed at the bottom end of the plastic storage die body, a plastic die mouth core lifting rod is provided through the plastic storage die body, a coating annular material channel is arranged in the plastic molding die mouth, a coating feeding device communicating with the coating annular material channel is fixedly installed on the outer side of the plastic molding die mouth, and a coating annular material seam communicating with the coating annular material channel and the plastic storage cavity is arranged on the inner circumference of the plastic molding die mouth; The beneficial effect of the invention is that the coating feeding device passes the antistatic medium through the coating annular material channel and the coating annular material seam into the plastic storage cavity, contacts and adheres to the plastic outer surface in the plastic storage cavity, and forms an antistatic medium protective layer on the plastic outer surface; on the basis of ensuring the service life of the chemical barrel, the present invention can produce an extremely thin antistatic coating on the barrel surface through the design of the coating feeding device, the coating annular material channel, and the coating annular material seam. Compared with the prior art, not only is the operation very simple, there is no need to add additional processing steps, which significantly reduces the processing efficiency, but also due to the extremely thin thickness, the production cost can be effectively reduced, and it has good promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0018] in:

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0020] Figure 2 is a structural principle diagram of a coating feeding device according to an embodiment of the present invention;

[0021] In the figure: 1-plastic storage die; 11-plastic storage cavity; 12-storage cylinder sleeve; 13-plastic outer layer feed port; 14-plastic inner layer feed port; 15-injection storage cylinder; 16-injection connector; 17-storage mandrel; 18-mandrel bushing; 19-plastic injection plug; 2-plastic molding die; 21-plastic discharge core die; 22-plastic discharge receiving body; 23-plastic discharge port die; 3-coating annular channel; 4-coating annular gap; 5-coating channel; 6-coating injection cylinder; 61-coating injection cylinder; 62-coating injection piston; 63-coating injection piston rod; 64-coating injection top plate; 65-coating injection top rod; 7-coating feeding device; 71-coating feeding cylinder; 72-coating feeding connector; 73-coating feeding rod; 74-coating flow channel groove; 75-coating rod bushing; 76-coating feeding plug; 77-antistatic medium inlet; 8-coating discharging device; 81-coating discharging core mold; 82-coating discharging port mold; 83-antistatic medium outlet. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described only by way of illustration. Needless to say, those of ordinary skill in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0023] like Figure 1 and Figure 2As shown, a multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings comprises a plastic storage die body 1, the top of which is provided with an injection cylinder and a thickness adjustment cylinder, a plastic storage cavity 11 is provided inside the plastic storage die body 1, a plastic molding die 2 connected to the plastic storage cavity 11 is installed at the bottom end of the plastic storage die body 1, a plastic die core lifting rod whose bottom end is connected to the plastic molding die 2 is penetrated through the plastic storage die body 1, a coating annular channel 3 is provided inside the plastic molding die 2, a coating feeding device connected to the coating annular channel 3 is fixedly installed on the outer side of the plastic molding die 2, and a coating annular seam 4 connecting the coating annular channel 3 and the plastic storage cavity 11 is provided on the inner circumference of the plastic molding die 2. The thickness adjustment cylinder is connected to the plastic molding die 2 through the plastic die core lifting rod and is used to control the opening of the plastic molding die 2, that is, to achieve the purpose of adjusting the thickness of the molded plastic. It belongs to the prior art and will not be described in detail here and is not shown in the figure. The injection cylinder is used to extend into the plastic storage cavity 11 and is used to extrude the plastic raw material in the plastic storage cavity 11 to realize the injection process of the plastic raw material. The injection cylinder belongs to the prior art and will not be described in detail here and is not shown in the figure. The coating feeding device allows the antistatic medium to enter the plastic storage cavity 11 through the coating annular material channel 3 and the coating annular material seam 4, contact and adhere to the outer surface of the plastic in the plastic storage cavity 11, and form an antistatic medium protective layer on the outer surface of the plastic. In this embodiment, the antistatic medium is a liquid coating, which is pressurized into the plastic storage cavity 11 by the coating feeding device.

[0024] The plastic material storage mold body 1 includes a plastic outer layer feed port 13 and a plastic inner layer feed port 14. An inner layer plastic flow channel for introducing the inner layer plastic into the plastic molding die 2 is arranged corresponding to the plastic inner layer feed port 14, and an outer layer plastic flow channel for introducing the outer layer plastic into the plastic molding die 2 is arranged corresponding to the plastic outer layer feed port 13.

[0025] The plastic material storage mold body 1 includes an injection storage cylinder body 15, a material injection connector 16 is fixedly installed on the top of the injection storage cylinder body 15, a material storage core rod 17 is arranged in the injection storage cylinder body 15, the plastic mold core rod is sleeved in the material storage core rod 17, a core rod bushing 18 is installed on the outer periphery of the material storage core rod 17, and a plastic injection plug 19 that moves up and down in the plastic storage cavity 11 is installed outside the core rod bushing 18. A storage cylinder sleeve 12 is installed between the material injection plug 19 and the inner wall of the injection storage cylinder body 15, the inner plastic flow channel is arranged between the core rod bushing 18 and the storage core rod 17 and connects the plastic inner layer feed port 14 and the injection storage cylinder body 15, and the outer plastic flow channel is arranged between the storage cylinder sleeve 12 and the inner wall of the injection storage cylinder body 15 and connects the plastic outer layer feed port 13 and the injection storage cylinder body 15.

[0026] An injection ejector rod is fixedly installed on the top of the plastic injection plug 19, and the top of the injection ejector rod extends outside the plastic storage mold body 1 and is connected to an injection cylinder that drives the injection ejector rod to move up and down; the top of the plastic mold core lifting rod is installed with a thickness adjustment cylinder that drives the plastic mold core lifting rod to move up and down.

[0027] The plastic molding die 2 includes a plastic discharge core mold 21 fixedly connected to the bottom end of the plastic die core rod, and a plastic discharge receiving body 22 and a plastic discharge port mold 23 matching therewith are arranged outside the plastic discharge core mold 21. The plastic discharge receiving body 22 and the plastic discharge port mold 23 are successively installed at the bottom end of the plastic storage die body 1 from top to bottom, and the coating annular material channel 3 and the coating annular material seam 4 are both arranged on the plastic discharge receiving body 22, and the coating feeding device is fixedly installed on the outer side of the plastic discharge receiving body 22, and the plastic discharge receiving body 22 is also provided with a coating channel 5 connecting the coating feeding device and the coating annular material channel 3.

[0028] The plastic material discharging receiving body 22 includes an upper receiving body and a lower receiving body that cooperate with each other. The coating annular material channel 3 and the coating annular material seam 4 are both arranged on the matching surface between the upper receiving body and the lower receiving body, and the coating channel 5 is arranged on the upper receiving body. The plastic material discharging receiving body 22 is designed as an upper receiving body and a lower receiving body in order to facilitate the processing of the coating annular material channel 3 and the coating annular material seam 4. In this embodiment, the coating annular material channel 3 is arranged as an arc-shaped material channel, and a smooth transition plane is arranged between the arc-shaped material channel and the coating annular material seam 4, which can effectively reduce the resistance of the antistatic coating when passing through and prevent blockage.

[0029] See also Figure 2The coating feeding device includes a coating injection cylinder 6, a coating feeding device 7 and a coating discharging device 8 which are fixedly connected in sequence. The discharging end of the coating discharging device 8 is connected to the outside of the plastic molding die 2 and is connected to the coating annular material channel 3.

[0030] The coating feeding device 7 comprises a coating feeding cylinder 71, a coating feeding connector 72 is installed on one side of the coating feeding cylinder 71, the coating discharging device 8 is installed on the other side of the coating feeding cylinder 71, a coating feeding rod 73 is installed in the coating feeding cylinder 71, the outer surface of the coating feeding rod 73 is provided with a coating flow channel groove 74, a coating rod bushing 75 is provided outside the coating feeding rod 73, a coating feeding plug 76 is provided between the coating rod bushing 75 and the inner wall of the coating feeding cylinder 71, an antistatic medium inlet 77 connected to the coating flow channel groove 74 is provided on the coating feeding connector 72, and a coating feeding pressure pump for pressing the antistatic medium into the coating feeding cylinder 71 is provided at the antistatic medium inlet 77. The coating feeding pressure pump makes the antistatic coating entering the coating feeding cylinder 71 have a certain pressure, which can push the coating feeding plug 76 to move to the left.

[0031] The coating discharge device 8 includes a coating discharge core mold 81 arranged at the end of the coating feeding rod 73, and a coating discharge port mold 82 matching with the coating discharge core mold 81 and connected to the end of the coating feeding cylinder 71 is arranged outside the coating discharge core mold 81. There is a discharge gap between the coating discharge core mold 81 and the coating discharge port mold 82, and the tail end of the coating discharge port mold 82 is provided with an anti-static medium outlet 83 connected to the coating annular material channel 3.

[0032] The coating injection cylinder 6 includes a coating injection cylinder body 61, in which a coating injection piston 62 is installed, and the coating injection piston 62 is fixedly connected to a coating injection piston rod 63, and a coating injection top plate 64 is fixedly installed at the bottom end of the coating injection piston rod 63, and a coating injection push rod 65 is fixedly installed at the bottom end of the coating injection top plate 64, and the tail end of the coating injection push rod 65 extends into the coating feed cylinder body 71 and is fixedly connected to the coating feed plug 76.

[0033] The working principle of the present invention is:

[0034] Plastic storage process: After two different plastic raw materials are heated, melted, stirred and mixed by their respective extruders, the inner layer plastic enters the injection storage cylinder 15 through the plastic inner layer feed port 14 and the inner layer plastic flow channel corresponding to the plastic inner layer feed port 14. At the same time, the outer layer plastic enters the injection storage cylinder 15 through the plastic outer layer feed port 13 and the outer layer plastic flow channel corresponding to the plastic outer layer feed port 13. Specifically, the inner layer plastic passes through the injection storage cylinder 15, the storage cylinder sleeve 12, the injection storage cylinder 15, the storage cylinder sleeve 13 and the injection storage cylinder 15 in sequence. The connector 16 and the core rod bushing 18 reach the inner plastic flow channel formed between the material storage core rod 17 and the core rod bushing 18, and the outer plastic passes through the injection storage cylinder 15 and reaches the outer plastic flow channel formed between the injection storage cylinder 15 and the plastic injection plug 19. The inner plastic and the outer plastic flow downward along the inner plastic flow channel and the outer plastic flow channel respectively and reach the outlet of each flow channel; when there is no plastic in the plastic storage cavity 11 of the injection storage cylinder 15, the plastic injection plug 19 is located at the lowest end of the plastic storage cavity 11, that is, Figure 1 , at this time, the inner plastic flow channel extends from between the core rod bushing 18 and the storage core rod 17 to between the storage core rod 17 and the plastic injection plug 19, and the outer plastic flow channel extends from between the inner wall of the injection storage cylinder body 15 and the storage cylinder sleeve 12 to between the inner wall of the injection storage cylinder body 15 and the plastic injection plug 19; in the process of filling the plastic storage cavity 11 of the injection storage cylinder body 15, the plastic discharge core mold 21 and the plastic discharge port mold 23 are closed; the plastic enters the plastic storage cavity 11, and is evenly squeezed and adhered together under pressure to achieve seamless, firm and leak-free. After the plastic continuously fills the plastic storage cavity 11, it will push the plastic injection plug 19 to move upward. When the plastic fills the plastic storage cavity 11, the plastic injection plug 19 is located at the highest position of the plastic storage cavity 11, completing the storage process.

[0035] Plastic injection process: After the material storage process is completed, the automatic control system of the blow molding machine will send a signal to supply oil to the injection cylinder, so that the plastic injection plug 19 moves downward to extrude the plastic. At the same time, the automatic control system controls the plastic die core rod to drive the plastic discharge core mold 21 to move downward through the thickness adjustment cylinder, that is, the channel between the plastic discharge core mold 21 and the plastic discharge port mold 23 is opened; when the plastic passes through the coating annular material gap 4 near the plastic discharge core mold 21 and the plastic discharge port mold 23, the antistatic medium squeezed out of the coating annular material gap 4 will contact the outer surface of the plastic, that is, when the plastic The outer surface is coated with an antistatic medium in an annular shape. After being extruded by the plastic discharge core mold 21 and the plastic discharge port mold 23, the antistatic coating is molded into one body with the plastic from the plastic storage cavity 11. The layers are tightly fitted and extruded from the gap between the plastic discharge core mold 21 and the plastic discharge port mold 23 to form a tubular blank. In this way, an antistatic coating is formed on the surface of the molded blank, and then the product is made by blowing, holding pressure and shaping. Since the overall volume of the blank becomes larger after blowing and expansion, an extremely thin antistatic coating will be formed on the surface of the molded product, and the thickness of the coating is 0.1-0.15mm.

[0036] Coating storage process: The coating feed pressure pump works to transport the antistatic medium into the coating feed cylinder 71 through the antistatic medium inlet 77, and then passes through the coating feed connector 72, the coating material rod bushing 75, and the coating feed rod 73 in sequence into the coating flow channel groove 74, and then enters into the coating storage cavity through the coating flow channel groove 74. When the antistatic medium in the coating storage cavity gradually increases, the coating feed plug 76 is pushed to the left until the coating feed plug 76 can no longer be pushed, and the storage process of the antistatic medium is completed.

[0037] Coating discharging process: After the material storage process is completed, the coating injection cylinder 6 starts to work, controls the coating injection piston 62 to drive the coating injection piston rod 63, the coating injection top plate 64, and the coating injection top rod 65 to move to the right, that is, drives the coating feed plug 76 to move to the right to extrude the anti-static medium. During the extrusion process, the coating is more uniform, and the continuous extrusion increases the pressure of the anti-static medium, and then passes through the channel between the coating discharge core mold 81 and the coating discharge port mold 82, and then is discharged through the anti-static medium outlet 83, and then enters the coating channel 5 and the coating annular material channel 3 in turn. Since the coating annular material channel 3 is an annular structure, the anti-static medium will fill the entire annular structure of the coating annular material channel 3, and then continue to squeeze, the anti-static medium will fill the coating annular material gap 4 of the annular structure, etc. When the plastic to be discharged from the plastic storage cavity 11 passes through the coating annular material gap 4 near the plastic discharge core mold 21 and the plastic discharge port mold 23, the coating injection oil cylinder 6 continues to act, controlling the coating feed plug 76 to continue to extrude, so that the antistatic coating is extruded from the coating annular material gap 4, contacts with the passing plastic, and adheres to the outer surface of the plastic. Since the coating annular material gap 4 is an annular structure, as long as the plastic passes once, a layer of antistatic medium can be coated on the outer surface, and since the width of the coating annular material gap 4 is very small, about 2mm-5mm, a coating of 2mm-5mm will be formed on the outer surface of the plastic, and after being blown into shape, the thickness of the antistatic coating formed on the barrel surface is 0.1mm-0.15mm. Compared with the barrel wall thickness, the coating thickness is extremely thin, but it does not affect the antistatic effect. When designing, the coating annular material gap 4 of different widths can be designed according to actual needs to form coatings of different thicknesses to meet different usage requirements.

[0038] On the basis of ensuring the service life of the chemical barrel, the present invention can produce an extremely thin antistatic coating on the barrel surface through the design of the coating feeding device, the coating annular material channel 3, and the coating annular material seam 4. Compared with the prior art, not only is the operation very simple, no additional processing steps are required, which significantly reduces the processing efficiency, but also due to the extremely thin thickness, the production cost can be effectively reduced, and it has good promotion value.

[0039] In this embodiment, the main objects are chemical plastic barrels such as IBC ton barrels and double-ring barrels. In order to achieve the anti-static function, a very thin anti-static coating is coated on the outside of the plastic chemical barrel. Therefore, the medium transported into the storage cavity is anti-static liquid coating. Of course, in order to achieve other functions, other media can also be transported into the storage cavity to achieve other functions.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings, comprising a plastic storage die body, a plastic storage cavity is arranged in the plastic storage die body, a plastic molding die mouth communicating with the plastic storage cavity is installed at the bottom end of the plastic storage die body, and a plastic die mouth core lifting rod connected to the plastic molding die mouth at the bottom end is penetrated through the plastic storage die body, characterized in that: A coating annular channel is provided in the plastic molding die, a coating feeding device connected to the coating annular channel is fixedly installed on the outer side of the plastic molding die, and a coating annular seam connected to the coating annular channel and the plastic storage cavity is provided on the inner circumference of the plastic molding die; the coating annular channel is an arc-shaped channel, a smooth transition plane is provided between the arc-shaped channel and the coating annular seam, and the coating annular seam is an annular seam with a width of 2mm-5mm; The plastic molding die comprises a plastic discharge core mold fixedly connected to the bottom end of the plastic die core lifting rod, a plastic discharge receiving body and a plastic discharge port mold matched therewith are arranged outside the plastic discharge core mold, the plastic discharge receiving body and the plastic discharge port mold are sequentially mounted up and down at the bottom end of the plastic storage die body, the coating annular material channel and the coating annular material seam are both arranged on the plastic discharge receiving body, the coating feeding device is fixedly mounted on the outside of the plastic discharge receiving body, and a coating channel connecting the coating feeding device and the coating annular material channel is also arranged on the plastic discharge receiving body; The plastic material discharging receiving body comprises an upper receiving body and a lower receiving body which cooperate with each other, the coating annular material channel and the coating annular material seam are both arranged on the matching surface between the upper receiving body and the lower receiving body, and the coating channel is arranged on the upper receiving body.

2. The multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings as claimed in claim 1, characterized in that: The plastic material storage mold body includes a plastic outer layer feed port and a plastic inner layer feed port. An inner layer plastic flow channel for introducing the inner layer plastic into the plastic molding die is arranged corresponding to the plastic inner layer feed port, and an outer layer plastic flow channel for introducing the outer layer plastic into the plastic molding die is arranged corresponding to the plastic outer layer feed port.

3. The multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings as claimed in claim 2, characterized in that: The plastic storage mold body includes an injection storage cylinder body, a material injection connector is fixedly installed on the top of the injection storage cylinder body, a storage core rod is arranged in the injection storage cylinder body, the plastic mold core lifting rod is sleeved in the storage core rod, a core rod bushing is installed on the outer periphery of the storage core rod, a plastic injection plug that moves up and down in the plastic storage cavity is installed outside the core rod bushing, a storage cylinder sleeve is installed between the plastic injection plug and the inner wall of the injection storage cylinder body, the inner layer plastic flow channel is arranged between the core rod bushing and the storage core rod and connects the plastic inner layer feed port and the injection storage cylinder body, and the outer layer plastic flow channel is arranged between the storage cylinder sleeve and the inner wall of the injection storage cylinder body and connects the plastic outer layer feed port and the injection storage cylinder body.

4. The multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings as claimed in claim 3, characterized in that: An injection ejector rod is fixedly installed on the top of the plastic injection plug, and the top of the injection ejector rod extends outside the plastic storage mold body and is connected to an injection cylinder that drives the injection ejector rod to move up and down; the top of the plastic mold core lifting rod is installed with a thickness adjustment cylinder that drives the plastic mold core lifting rod to move up and down.

5. The multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings as claimed in claim 1, characterized in that: The coating feeding device comprises a coating injection cylinder, a coating feeding device and a coating discharging device which are fixedly connected in sequence, and the discharging end of the coating discharging device is connected to the outside of the plastic forming die and communicated with the coating annular material channel.

6. The multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings as claimed in claim 5, characterized in that: The coating feeding device includes a coating feeding cylinder body, a coating feeding connector is installed on one side of the coating feeding cylinder body, the coating discharging device is installed on the other side of the coating feeding cylinder body, a coating feeding rod is installed in the coating feeding cylinder body, a coating flow channel groove is provided on the outer surface of the coating feeding rod, a coating rod bushing is provided outside the coating feeding rod, a coating feeding plug is provided between the coating rod bushing and the inner wall of the coating feeding cylinder body, and an anti-static medium inlet connected to the coating flow channel groove is provided on the coating feeding connector.

7. The multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings as claimed in claim 6, characterized in that: The coating discharge device includes a coating discharge core mold arranged at the end of the coating feed rod, a coating discharge port mold matching with the coating discharge core mold and connected to the end of the coating feed cylinder body is arranged outside the coating discharge core mold, and an anti-static medium outlet connected to the coating annular material channel is arranged at the tail end of the coating discharge port mold.

8. The multi-layer storage cylinder die head for producing IBC barrels and double-ring barrels with antistatic coatings as claimed in claim 6, characterized in that: The coating injection cylinder includes a coating injection cylinder body, a coating injection piston is installed in the coating injection cylinder body, the coating injection piston is fixedly connected to a coating injection piston rod, the bottom end of the coating injection piston rod is fixedly installed with a coating injection top plate, the bottom end of the coating injection top plate is fixedly installed with a coating injection push rod, the tail end of the coating injection push rod extends into the coating feed cylinder body and is fixedly connected to the coating feed plug.

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