CN117656422A - Multi-layer co-extrusion blow molding machine head device - Google Patents

Abstract

The invention discloses a multi-layer co-extrusion blow molding machine head device, which relates to the technical field of blow molding machines and comprises a machine head mechanism, wherein an auxiliary mechanism is arranged on the machine head mechanism, the auxiliary mechanism comprises a mounting block and a cylindrical hole, a shunt pipe is arranged at the output end of a first water pipe, a first atomizing nozzle is arranged at each output end of the shunt pipe, a second atomizing nozzle is arranged at each output end of a second three-way pipe, a flow control valve is arranged at the input end of the second water pipe, a water pump is arranged at the input end of the flow control valve, a filter layer is arranged in a rectangular groove, and a water storage tank is arranged at the top of a placing table.

Description

A multi-layer co-extrusion blow molding machine head device

Technical field

The invention relates to the technical field of blow molding machines, specifically a head device of a multi-layer co-extrusion blow molding machine.

Background technique

Multi-layer co-extrusion blow molding machine is a piece of equipment used to produce multi-layer plastic films and plastic bags. It uses co-extrusion technology, that is, two or more plastic materials are extruded through different extrusion ports, so that they are combined with each other inside the extrusion head to form a multi-layer structure, and then the multi-layer extruded materials are extruded through blow molding technology. Plastic films are blown into air bags or other plastic products. The head of a multi-layer co-extrusion blow molding machine is an equipment component used to produce multi-layer plastic films or plastic tubes. It extrudes multiple molten plastic materials simultaneously and Blow molded together to form a multi-layer structure.

Although the existing multi-layer co-extrusion blow molding machine head can combine multiple molten plastic materials to form a multi-layer structure during actual use, and extrude them at the same time, it is convenient to use blow molding technology to make a multi-layer machine structure later. Multi-layer plastic films and plastic bags, however, cannot provide auxiliary functions for multi-layer fluids during the release process, and thus cannot reduce the rate at which the temperature of the multi-layer fluids decreases when they come into contact with low-temperature environments during the release process. It affects the quality of the product obtained during multi-layer fluid blow molding in the later stage, that is, it reduces the efficiency of the multi-layer co-extrusion blow molding machine head.

Therefore, it is necessary to propose a new multi-layer co-extrusion blow molding machine head device in order to solve the above-mentioned problems.

Contents of the invention

The object of the present invention is to provide a multi-layer co-extrusion blow molding machine head device to solve the problem that the existing multi-layer co-extrusion blow molding machine head proposed by the background technology cannot provide auxiliary assistance for the multi-layer fluid during the release process. function, so that when the multi-layer fluid comes into contact with a low-temperature environment during the release process, the rate at which the temperature of the multi-layer fluid decreases will be reduced, which will then affect the quality of the product obtained during the later multi-layer fluid blow molding, that is, the multi-layer co-extrusion blow molding will be reduced. The problem of the efficiency of the plastic machine head.

In order to achieve the above object, the present invention provides the following technical solution: a multi-layer co-extrusion blow molding machine head device, including a head mechanism, and the head mechanism is provided with an auxiliary mechanism;

The auxiliary mechanism includes a mounting block and a cylindrical hole. A first tee is fixedly connected to the interior of the mounting block. One of the output ends of the first tee is equipped with a connecting pipe. The first tee A first water pipe is installed at the other output end of the pipe. A shunt pipe is installed at the output end of the first water pipe. A plurality of single-hole blocks are fixed at equal intervals on the outer wall of the shunt pipe. Each output of the shunt pipe A first atomizing nozzle is installed on each end of the cylindrical hole. A water conduit is movable inside the cylindrical hole. A second tee is installed at the output end of the water conduit. The two output ends of the second tee are Both are equipped with a second atomizing nozzle, a second water pipe is installed at the input end of the first three-way pipe, a flow control valve is installed at the input end of the second water pipe, and a water pump is installed at the input end of the flow control valve. , a water inlet pipe is installed at the input end of the water pump, a placement platform is provided on the front surface of the water pump, a rectangular groove is provided on the top of the placement platform, a filter layer is provided inside the rectangular groove, and a filter layer is provided inside the rectangular groove. A round pipe is fixedly penetrated through the bottom of the inner wall. A water storage tank is installed on the top of the placing platform. A water outlet hole is provided at the bottom of the inner wall of the water storage tank.

Preferably, the output end of the circular pipe is connected to the input end of the water inlet pipe, the input end of the water outlet hole is located at the bottom of the inner wall of the water storage tank close to the first water pipe, and the input end of the circular pipe is located in a rectangular slot The bottom of the inner wall is close to the water inlet pipe, and the output end of the connecting pipe is connected to the input end of the water conduit pipe.

Preferably, a lid is installed on the top of the water storage tank, an air-conditioning valve is threaded through the top thread of the lid, and a dust-proof cover is installed on the input end of the air-conditioning valve.

Preferably, the machine head mechanism includes a connecting block. The mounting block is installed on the outer surface of the connecting block near the top through a first screw. The cylindrical hole is opened at the bottom of the inner wall at the top groove of the connecting block. The connecting block A protective shell is installed in the top groove of the block.

Preferably, a copper pipe is installed at the bottom opening of the connecting block, and a discharge pipe is installed at the bottom of the copper pipe. Each of the single-hole blocks is installed on the outer wall of the discharge pipe through a second screw.

Preferably, the bottom of the connecting block is provided with a first annular groove, the bottom of the connecting block is provided with a second annular groove, the bottom of the connecting block is provided with a third annular groove, and the bottom of the connecting block is fixed with a Ring column.

Preferably, the output end of the water conduit pipe is located inside the circular column, the input end of the second tee pipe is located at the output end of the circular column, and a circular heating ring is installed on the outer wall of the copper pipe.

Preferably, the first feed pipe is fixedly penetrated through the top of the inner wall of the first annular groove, the second feed pipe is fixedly penetrated through the top of the inner wall of the second annular groove, and the top of the inner wall of the third annular groove is fixedly penetrated. There is a third feed pipe, and the top of the first feed pipe, the top of the second feed pipe and the top of the third feed pipe all move through the bottom of the protective shell.

Preferably, a first electric valve is installed at the input end of the third feed pipe, a second electric valve is installed at the input end of the first feed pipe, and a third electric valve is installed at the input end of the second feed pipe. Three electric valves.

Preferably, the inner wall of the protective shell and the inner wall of the top groove of the connecting block are equally spaced with three arc-shaped holes, and the six arc-shaped holes are divided into three groups, and the through holes of each group of arc-shaped holes are connected. Through, the output end of the connecting pipe is movablely sleeved between the insides of a group of arc-shaped holes, and a plurality of mounting holes are equidistantly distributed on the top of the connecting block.

Compared with the prior art, the beneficial effects of the present invention are:

1. By setting up an auxiliary mechanism, the present invention can reduce the speed of rapid cooling of the multi-layer fluid when it comes into contact with the environment when it is discharged from the output end of the discharge pipe, thereby ensuring that the final result is obtained during the later multi-layer fluid blow molding. Product quality, that is, to improve the use efficiency of the multi-layer co-extrusion blow molding machine head. When the multi-layer fluid is discharged from the output end of the discharge pipe, first use the PLC controller, water pump, water inlet pipe and circle on the blow molding machine. With the cooperation of the pipe, the filtered water in the rectangular tank can be extracted, and then with the cooperation of the water outlet hole and the air-conditioning valve, the water in the water storage tank can be transported to the inside of the filter layer.

2. In the present invention, by utilizing the cooperation of the PLC controller, water pump and flow control valve on the blow molding machine, the water after flow control can be transported to the inside of the second water pipe, and then the first tee pipe, The cooperation of the first water pipe, the connecting pipe, the diverter pipe, the water conduit pipe and the second tee pipe can realize the delivery of water to the inside of each first atomizing nozzle and the inside of the second atomizing nozzle, thereby passing through Atomizing water to prevent rapid cooling of multi-layer fluids.

3. By setting up the machine head mechanism, the present invention can melt and bring together the fluid output from each die head of the blow molding machine to form a multi-layer fluid. When it is necessary to produce multi-layer fluid, the PLC on the blow molding machine is first used. The cooperation of the controller, the first electric valve, the second electric valve and the third electric valve can realize the delivery of the fluid output from each die head of the blow molding machine to the third feed pipe, the first feed pipe and the third electric valve respectively. The inside of the second feed tube.

4. By utilizing the cooperation of the first annular groove, the second annular groove, the third annular groove, the copper tube and the circular heating ring, the present invention can realize the bringing together of three fluids, and the three fluids can be brought together at the same time. The fluids are melted and contacted together again, and then under the action of the discharge pipe, the multi-layer fluid can be transported out.

Description of drawings

Figure 1 is a perspective view of the head device of a multi-layer co-extrusion blow molding machine according to the present invention;

Figure 2 is a partial cross-sectional perspective view of the head device of a multi-layer co-extrusion blow molding machine according to the present invention;

Figure 3 is a schematic three-dimensional structural diagram of the diverter pipe, the single hole block and the first atomizing nozzle of the head device of a multi-layer co-extrusion blow molding machine according to the present invention;

Figure 4 is an enlarged perspective view of the head device of a multi-layer co-extrusion blow molding machine in Figure 2 according to the present invention;

Figure 5 is a partial cross-sectional perspective view of the auxiliary mechanism of the head device of a multi-layer co-extrusion blow molding machine according to the present invention;

Figure 6 is a schematic three-dimensional structural diagram of the air conditioning valve and dust cover of the head device of a multi-layer co-extrusion blow molding machine according to the present invention;

Figure 7 is a partial perspective view of the head device of a multi-layer co-extrusion blow molding machine according to the present invention;

Figure 8 is a partial perspective view of the head device of a multi-layer co-extrusion blow molding machine from another angle according to the present invention.

In the picture: 1. Machine head mechanism; 101. Connection block; 102. Protective shell; 103. Copper pipe; 104. Discharge pipe; 105. First annular groove; 106. Second annular groove; 107. Third annular groove ; 108. Circular column; 109. Circular heating ring; 110. First feeding pipe; 111. Second feeding pipe; 112. Third feeding pipe; 113. First electric valve; 114. Second electric valve Valve; 115. Third electric valve; 116. Arc hole; 117. Installation hole; 2. Auxiliary mechanism; 201. Installation block; 202. First tee pipe; 203. Connecting pipe; 204. First water pipe; 205 , diverter pipe; 206, single hole block; 207, first atomizing nozzle; 208, cylindrical hole; 209, water conduit; 210, second three-way pipe; 211, second atomizing nozzle; 212, second water pipe; 213. Flow control valve; 214. Water pump; 215. Water inlet pipe; 216. Placement table; 217. Rectangular tank; 218. Filter layer; 219. Round pipe; 220. Water storage tank; 221. Water outlet; 222. Tank cover; 223. Air conditioning valve; 224. Dust cover.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described implementation regulations are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Referring to Figures 1 to 8, the present invention provides a technical solution: a multi-layer co-extrusion blow molding machine head device, including a head mechanism 1, and an auxiliary mechanism 2 is provided on the head mechanism 1;

The auxiliary mechanism 2 includes a mounting block 201 and a cylindrical hole 208. A first tee pipe 202 is fixedly connected to the interior of the mounting block 201. One of the output ends of the first tee pipe 202 is equipped with a connecting pipe 203. The first tee pipe 203 A first water pipe 204 is installed at the other output end of 202. A shunt pipe 205 is installed at the output end of the first water pipe 204. A plurality of single-hole blocks 206 are fixed at equal intervals on the outer wall of the shunt pipe 205. Each output of the shunt pipe 205 A first atomizing nozzle 207 is installed on each end of the cylindrical hole 208, a water conduit 209 is movablely connected inside the cylindrical hole 208, the output end of the water conduit 209 is installed with a second three-way pipe 210, and the two output ends of the second three-way pipe 210 A second atomizing nozzle 211 is installed, a second water pipe 212 is installed at the input end of the first three-way pipe 202, a flow control valve 213 is installed at the input end of the second water pipe 212, and a water pump is installed at the input end of the flow control valve 213. 214. A water inlet pipe 215 is installed at the input end of the water pump 214. A placement platform 216 is provided on the front surface of the water pump 214. A rectangular groove 217 is provided on the top of the placement platform 216. A filter layer 218 is provided inside the rectangular groove 217. The rectangular groove 217 A round pipe 219 is fixedly penetrated through the bottom of the inner wall. A water storage tank 220 is installed on the top of the placing platform 216. A water outlet hole 221 is provided at the bottom of the inner wall of the water storage tank 220.

As shown in Figures 1, 5 and 8, the output end of the circular tube 219 is connected to the input end of the water inlet pipe 215, and the input end of the water outlet hole 221 is located at the bottom of the inner wall of the water storage tank 220 close to the first water pipe 204. The input end of the pipe 219 is located at the bottom of the inner wall of the rectangular groove 217 close to the water inlet pipe 215. The output end of the connecting pipe 203 is connected to the input end of the water conduit 209. The connecting pipe 203 can be transported under the action of the water conduit 209. The water is transported to the inside of the second three-way pipe 210.

As shown in Figure 1, Figure 5 and Figure 6, a tank cover 222 is installed on the top of the water storage tank 220. The top thread of the tank cover 222 is penetrated by the air conditioning valve 223. The input end of the air conditioning valve 223 is equipped with a dust cover 224, which is convenient for installation. Under the action of the dust cover 224, the dust mixed in the gas entering the inside of the air conditioning valve 223 can be filtered and left outside.

As shown in Figures 1, 2, 7 and 8, the machine head mechanism 1 includes a connecting block 101. The mounting block 201 is installed on the outer surface of the connecting block 101 near the top through a first screw, and a cylindrical hole 208 is opened in the connecting block. At the bottom of the inner wall of the top groove of 101, a protective shell 102 is installed at the top groove of the connecting block 101. Under the action of the protective shell 102, the connecting block 101 can be raised to the first electric valve 113, the second electric valve 114 and the third electric valve 113. The protective effect of three electric valves 115.

According to Figures 1, 2, 3, 7 and 8, a copper pipe 103 is installed at the bottom opening of the connecting block 101, and a discharge pipe 104 is installed at the bottom of the copper pipe 103. Each single-hole block 206 is The second screw is installed on the outer wall of the discharge pipe 104, so that the shunt pipe 205 can be installed on the discharge pipe 104 with the cooperation of the second screw and the single-hole block 206.

As shown in Figures 1, 2, 7 and 8, the bottom of the connecting block 101 is provided with a first annular groove 105, the bottom of the connecting block 101 is provided with a second annular groove 106, and the bottom of the connecting block 101 is provided with a third annular groove 105. An annular column 108 is fixed at the bottom of the annular groove 107 and the connecting block 101, so that the formed multi-layer fluid can be transported out under the action of the annular column 108.

According to Figures 1, 2, 4, 7 and 8, the output end of the water conduit 209 is located inside the annular column 108, and the input end of the second tee pipe 210 is located at the output end of the annular column 108. A circular heating ring 109 is installed on the outer wall of the copper tube 103, so that the multi-layer fluid formed inside the copper tube 103 can be melted under the action of the circular heating ring 109.

As shown in Figures 1, 2, 7 and 8, the first feed pipe 110 is fixedly penetrated through the top of the inner wall of the first annular groove 105, and the second feed pipe 111 is fixedly penetrated through the top of the inner wall of the second annular groove 106. , the third feed pipe 112 is fixedly penetrated through the top of the inner wall of the third annular groove 107, and the top of the first feed pipe 110, the top of the second feed pipe 111 and the top of the third feed pipe 112 all movablely penetrate the protective shell. The bottom of 102 is convenient for transporting the molten fluid to the inside of the first annular groove 105 and the second annular groove 106 respectively with the cooperation of the first feeding pipe 110, the second feeding pipe 111 and the third feeding pipe 112. interior and the interior of the third annular groove 107 .

As shown in Figures 2, 7 and 8, the first electric valve 113 is installed at the input end of the third feed pipe 112, and the second electric valve 114 is installed at the input end of the first feed pipe 110. A third electric valve 115 is installed at the input end of the pipe 111. The first electric valve 113, the second electric valve 114 and the third electric valve 115 can be used to control whether the molten fluid output by the blow molding machine die can be transported into the third electric valve. The interior of the three feed tubes 112, the first feed tube 110 and the second feed tube 111.

As shown in Figures 1, 2, 7 and 8, the inner wall of the protective shell 102 and the inner wall of the top groove of the connecting block 101 are equally spaced with three arc-shaped holes 116, and the six arc-shaped holes 116 are divided into There are three groups, and the through holes of each group of arc-shaped holes 116 are connected. The output end of the connecting pipe 203 is movable between the insides of one group of arc-shaped holes 116. There are multiple holes equidistantly distributed on the top of the connecting block 101. With the cooperation of the mounting holes 117 and the bolts prepared by the staff, the connecting block 101 can be installed on the die head position mounting bracket of the blow molding machine. At the same time, under the action of the arc hole 116, the connecting block 101 can be easily installed. The first electric valve 113, the second electric valve 114 and the third electric valve 115 are electrically connected to the PLC controller used on the blow molding machine through wires.

The effect achieved by the entire mechanism is: when the blow molding machine needs to use the die head mechanism 1, first connect the first feed pipe 110 to the output end of the first die head on the blow molding machine, and then connect the second The second feed pipe 111 is connected to the output end of the second die on the blow molding machine, and then the third feed pipe 112 is connected to the output end of the third die on the blow molding machine, and then using With the use of the mounting holes 117 and the bolts prepared by the staff, the connecting block 101 is directly installed on the die position mounting bracket of the blow molding machine, and then the first electric valve 113, the second electric valve 114, and the third electric valve are installed. The valve 115, the circular heating ring 109, the water pump 214, the flow control valve 213 and the air conditioning valve 223 are all electrically connected with the PLC controller used to control the blow molding machine using wires. Afterwards, the first step is set on the PLC controller. The procedures for using the electric valve 113, the second electric valve 114, the third electric valve 115, the circular heating ring 109, the water pump 214, the flow control valve 213 and the air conditioning valve 223, and using the cooperation of the PLC controller and the flow control valve 213, Adjust the amount of water entering the second water pipe 212, finally open the tank cover 222, inject an appropriate amount of water into the inside of the water storage tank 220, and after injecting the water, install the tank cover 222 back to the initial position. When everything is ready, At this time, the blow molding machine can be started, and the parts in the blow molding machine are used to melt the required plastic materials into fluids, and then each fluid is transported to the inside the first electric valve 113, the second electric valve 114 and the third electric valve 115. At the same time, the PLC controller on the blow molding machine is used to open the first electric valve 113, the second electric valve 114, and the third electric valve 115. Three electric valves 115 and circular heating ring 109, when each fluid enters the inside of the first electric valve 113, the inside of the second electric valve 114 and the inside of the third electric valve 115, it enters the first electric valve 113 at this time. The fluid inside, the second electric valve 114 and the third electric valve 115 will be directly transported to the corresponding third feed pipe 112, the first feed pipe 110 and the second feed pipe 111, and then The fluid entering the first feed pipe 110 will directly enter the internal fluid of the first annular groove 105, and the fluid entering the second feed pipe 111 will directly enter the interior of the second annular groove 106, and at the same time enter the third feed. The fluid inside the tube 112 will directly enter the inside of the third annular groove 107, and then the fluid entering the first annular groove 105, the fluid inside the second annular groove 106, and the fluid inside the third annular groove 107 will all be directly transported to Inside the copper tube 103, when all three fluids enter the inside of the copper tube 103, the inner wall of the circular heating ring 109 started at this time will start to generate heat, and the heat generated will be directly transferred to the copper tube 103 with the cooperation of the copper tube 103. Among the three types of fluids that are put together, melt the three fluids so that the contact positions of the three fluids can better fit together. Then the multi-layer fluids that are melted and contacted together will directly enter the discharge pipe 104. Internally, when the multi-layer fluid enters the inside of the discharge pipe 104 and is discharged from the output end of the discharge pipe 104, the PLC controller on the blow molding machine is directly used to start the water pump 214 and open the air conditioning valve 223. The water pump started at this time 214 will directly pump away the clean water output from the output end of the circular pipe 219 with the cooperation of the water inlet pipe 215. When the water inside the circular pipe 219 is pumped out, the water inside the water storage tank 220 will directly flow from the water outlet 221. Pass through the inside of the filter layer 218 and enter the inside of the filter layer 218. Then the water entering the inside of the filter layer 218 will be filtered directly. Then the filtered water will directly enter the inside of the circular tube 219, and then be pumped away again, and then be filtered. The pumped water will be transported to the inside of the flow control valve 213, and then the water entering the inside of the flow control valve 213 will be directly controlled by the flow control valve 213, and finally from the output end of the flow control valve 213 It is discharged and transported to the inside of the second water pipe 212. When the clean water enters the inside of the second water pipe 212, the water entering the second water pipe 212 will directly enter the inside of the first three-way pipe 202, and then enter the first three-way pipe 202. The water inside the pipe 202 will be directly diverted and transported to the inside of the first water pipe 204 and the inside of the connecting pipe 203. Then the water entering the inside of the connecting pipe 203 will directly enter the inside of the water conduit pipe 209, and then enter the inside of the water conduit pipe 209. The water will be directly transported to the inside of the second three-way pipe 210, and then the water entering the inside of the second three-way pipe 210 will be directly diverted into the inside of the two second atomizing nozzles 211, and then enter the two second atomizing nozzles 211. The water inside the second atomizing nozzle 211 will be directly atomized and sprayed on the inner wall of the multi-layer fluid. When the atomized water contacts the inner wall of the multi-layer fluid, the water particles in the atomized water will evaporate immediately and absorb The heat of the inner wall of the multi-layer fluid can prevent the fluid from rapidly cooling down. At the same time, the coverage of water mist can also form a protective layer to reduce the direct contact between the inner wall of the fluid and the outside air, that is, further slowing down the cooling rate of the multi-layer fluid, and At the same time, the water entering the first water pipe 204 will directly enter the interior of the diverter pipe 205, and then the water entering the interior of the diverter pipe 205 will be directly diverted and transported to the interior of each first atomizing nozzle 207, and then enter each third atomizing nozzle 207. The water inside the atomizing nozzle 207 is directly atomized and sprayed on the outer wall of the multi-layer fluid to achieve the same effect as described above. When the multi-layer fluid is output for a length from the output end of the discharge pipe 104, at this time Directly use the cooperation between the PLC controller and the blow molding machine to stop the output of the multi-layer fluid from the output end of the discharge pipe 104, and close the water pump 214 and the air conditioning valve 223, and then use the cooperation of other parts of the blow molding machine to perform post-blow molding Just make the operation.

Among them, the circular heating ring 109 is a heating element used in heating equipment or processes. It is usually a ring-shaped structure made of thermally conductive materials that can be installed around objects or equipment components that need to be heated. Its main function is to provide thermal energy and transfer heat to the target object or equipment to increase its temperature or maintain a specific operating temperature. , consisting of heating element, insulation layer and shell/protective layer;

The flow control valve 213 is a device for controlling the flow rate of a fluid medium. It can control the flow rate by adjusting the opening of the valve and changing the cross-sectional area of the fluid passing through the valve. Its main function is to adjust the flow rate of the fluid medium as needed to meet the flow requirements of the process or system. It can be used in various industrial fields, such as chemical industry, petroleum, water treatment, pharmaceuticals, etc. Common applications include flow regulation, pressure control, temperature control, etc., and its components are valve bodies, valves, driving devices and accessories;

Diversion pipe 205 is a pipe element used to branch or distribute fluid media to different pipes or equipment. It usually consists of pipe connectors and support structures. Its main function is to shunt the fluid medium from one pipe to multiple pipes or equipment to meet different flow and pressure requirements and achieve fluid distribution and control. It is commonly used in industrial production, process control, liquid transportation and other fields;

Circular heating ring 109, first electric valve 113, second electric valve 114, third electric valve 115, diverter pipe 205, first atomization nozzle 207, second atomization nozzle 211, flow control valve 213, water pump 214, The filter layer 218 (composed of activated carbon particles) and the air conditioning valve 223 are both existing technologies and will not be explained too much here.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A multi-layer co-extrusion blow molding machine head device, characterized in that: the machine head comprises a machine head mechanism (1), wherein an auxiliary mechanism (2) is arranged on the machine head mechanism (1);

the auxiliary mechanism (2) comprises a mounting block (201) and a cylindrical hole (208), a first three-way pipe (202) is fixedly sleeved in the mounting block (201), one output end of the first three-way pipe (202) is provided with a connecting pipe (203), the other output end of the first three-way pipe (202) is provided with a first water pipe (204), the output end of the first water pipe (204) is provided with a shunt pipe (205), a plurality of single-hole blocks (206) are fixedly distributed on the outer wall of the shunt pipe (205) at equal intervals, each output end of the shunt pipe (205) is provided with a first atomizing nozzle (207), the inner part of the cylindrical hole (208) is movably sleeved with a water guide pipe (209), the output end of the water guide pipe (209) is provided with a second three-way pipe (210), the two output ends of the second three-way pipe (210) are respectively provided with a second atomizing nozzle (204), the input end of the first three-way pipe (202) is provided with a second water pipe (212), the input end of the second three-way pipe (212) is provided with a water inlet valve (213), the input end of the second water pipe (212) is provided with a water pump (214), the input end of the water pump (214) is provided with a water pump (214), rectangular grooves (217) are formed in the tops of the placement tables (216), filter layers (218) are arranged in the rectangular grooves (217), round tubes (219) are fixedly penetrated through the bottoms of the inner walls of the rectangular grooves (217), water storage tanks (220) are mounted on the tops of the placement tables (216), and water outlet holes (221) are formed in the bottoms of the inner walls of the water storage tanks (220).

2. The multi-layer coextrusion blow molding machine head assembly according to claim 1, wherein: the output end of the round tube (219) is connected with the input end of the water inlet tube (215), the input end position of the water outlet hole (221) is positioned at the position, close to the first water tube (204), of the inner wall bottom of the water storage tank (220), the input end position of the round tube (219) is positioned at the position, close to the water inlet tube (215), of the inner wall bottom of the rectangular groove (217), and the output end of the connecting tube (203) is connected with the input end of the water guide tube (209).

3. The multi-layer coextrusion blow molding machine head assembly according to claim 1, wherein: the top of storage water tank (220) is installed case lid (222), air conditioner valve (223) is run through to the top screw thread of case lid (222), shield (224) are installed to the input of air conditioner valve (223).

4. The multi-layer coextrusion blow molding machine head assembly according to claim 1, wherein: the machine head mechanism (1) comprises a connecting block (101), the mounting block (201) is mounted on the outer surface of the connecting block (101) through a first screw and is close to the top, the cylindrical hole (208) is formed in the bottom of the inner wall of the top groove of the connecting block (101), and the protective shell (102) is mounted on the top groove of the connecting block (101).

5. The multi-layer coextrusion blow molding machine head assembly according to claim 4, wherein: copper pipe (103) are installed at the bottom opening part of connecting block (101), discharging pipe (104) are installed to the bottom of copper pipe (103), every single hole piece (206) is all installed at the outer wall of discharging pipe (104) through the second screw.

6. The multi-layer coextrusion blow molding machine head assembly according to claim 5, wherein: the bottom of connecting block (101) has seted up first ring channel (105), second ring channel (106) have been seted up to the bottom of connecting block (101), third ring channel (107) have been seted up to the bottom of connecting block (101), the bottom of connecting block (101) is fixed with ring post (108).

7. The multi-layer coextrusion blow molding machine head assembly according to claim 6, wherein: the output end of the water guide pipe (209) is positioned in the circular column (108), the input end of the second three-way pipe (210) is positioned at the output end of the circular column (108), and the circular heating ring (109) is arranged on the outer wall of the copper pipe (103).

8. The multi-layer coextrusion blow molding machine head assembly according to claim 6, wherein: the inner wall top of first ring channel (105) is fixed to be run through has first inlet pipe (110), the inner wall top of second ring channel (106) is fixed to be run through has second inlet pipe (111), the inner wall top of third ring channel (107) is fixed to be run through has third inlet pipe (112), the bottom of protective housing (102) is all run through in the activity of the top of first inlet pipe (110), the top of second inlet pipe (111) and the top of third inlet pipe (112).

9. The multilayer coextrusion blow molding machine head arrangement according to claim 8, wherein: the input end of the third feeding pipe (112) is provided with a first electric valve (113), the input end of the first feeding pipe (110) is provided with a second electric valve (114), and the input end of the second feeding pipe (111) is provided with a third electric valve (115).

10. The multi-layer coextrusion blow molding machine head assembly according to claim 4, wherein: three arc holes (116) are uniformly distributed on the inner wall of the protective shell (102) and the inner wall of the top groove of the connecting block (101) at equal intervals, the six arc holes (116) are divided into three groups, through holes of each group of arc holes (116) are communicated, the output end of the connecting pipe (203) is movably sleeved between the inner parts of one group of arc holes (116), and a plurality of mounting holes (117) are distributed on the top of the connecting block (101) at equal intervals.