Blow molding machine feed hopper

Abstract

The utility model relates to the technical field of blow molding machine, specifically disclose blow molding machine feed hopper, including the material hopper, the heat exchange box, the one end outer surface of material hopper is fitted with the cover body and installs, the feed inlet of material hopper is connected with the feeding bucket, the outer surface of material hopper is evenly provided with the exhaust hole, the outer surface fixed mounting of material hopper has the barrier box. This blow molding machine feed hopper, after the plastic particle is put into the inside of material hopper, can send the air into the inside of air inlet pipe through the start -up of second air blower or second air blower, and spouts outward through the air outlet, lets the air can blow the falling plastic particle, and lets the dust impurity among plastic particle can pass through the exhaust hole and enter the barrier box among, and make the wind through the barrier box and enter the dust bag in the filtration and collection, make the dust among plastic particle can be removed in the process when feeding, and can collect the dust particle.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, specifically to a blow molding machine feed hopper. Background Technology

[0002] In the modern plastics manufacturing industry, blow molding technology is widely used in packaging, automotive parts, medical devices and other fields due to its high efficiency and flexible molding characteristics. As the core production equipment, the pretreatment effect of the material in the feed hopper of the blow molding machine directly affects the quality of the product, production efficiency and equipment life.

[0003] In the traditional blow molding production process, dust and impurities inevitably get mixed in during the mixing, transportation and transfer of plastic granules. These dust and impurities will cause the plastic granules to be impure when they enter the blow molding machine, which will seriously affect the quality of the blow-molded film and make it inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a feed hopper for a blow molding machine to solve the problem mentioned in the background art that dust and impurities can affect the quality of the film.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blow molding machine feed hopper, including a material receiving hopper and a heat exchange box. The material receiving hopper is a conical bucket design and is connected to the blow molding machine. A cover is fitted onto the outer surface of one end of the material receiving hopper, and a suction chamber is fixedly installed on the outer surface of the cover. A suction motor is fixedly installed on the outer surface of the suction chamber. The feed inlet of the material receiving hopper is connected to the feeding bucket. An air inlet pipe is installed through the outer surface of the material receiving hopper. A second blower is fixed to the ground on one side of the material receiving hopper and is connected to the air inlet pipe. A dust filter box is fixedly installed on the outer surface of the second blower. Exhaust holes are evenly distributed on the outer surface of the material receiving hopper. A barrier box is fixedly installed on the outer surface of the material receiving hopper, and a dust collection bag is fitted onto the outer surface of the barrier box. The dust collection bag and the barrier box are fixed together using clamps.

[0006] Preferably, hooks and latches are fixedly installed on the outer surface of one end of the hopper, and the hooks and latches engage with the cover. An electromagnetic valve is fixedly installed on the outer surface of the suction chamber, and one end of the electromagnetic valve is located inside the suction chamber.

[0007] Using the above technical solution, the cover and the hopper can be easily fixed together by hook and latch, making it convenient to open and close and separate the cover and the hopper. At the same time, the use of electromagnetic valves can close the cover and improve the suction effect when the suction motor is running.

[0008] Preferably, a vibration motor is fixedly installed on the outer surface of the hopper, and an ultrasonic level sensor is fixedly installed inside the cover.

[0009] By adopting the above technical solution, the plastic granules in the hopper can be evenly fed into the blow molding machine through the vibration of the vibrating motor, so that the hopper will not be blocked. The ultrasonic level sensor can monitor the remaining plastic granules in the hopper, and when the material in the hopper is too low, the suction motor can be started to automatically feed the material.

[0010] Preferably, the heat exchange box is fixedly installed on the outer surface of the heating part of the blow molding machine, and the interior of the heat exchange box is designed with fins. A first blower is fixedly installed on the outer surface of the heat exchange box, and the air outlet of the first blower is connected to one end of the heat exchange box. One end of the heat exchange box is connected to the air inlet pipe, and a temperature sensing sensor is fixedly installed on the outer surface of the air inlet pipe.

[0011] Using the above technical solution, the heat exchange box absorbs the heat emitted by the blow molding machine when heating the plastic granules, and the heat of the heat exchange box is carried away by the air supplied by the first blower. The finned design of the heat exchange box can increase the heat exchange capacity, allowing the air to be heated and sent into the receiving hopper through the air inlet pipe. The use of temperature sensing sensors can monitor the temperature of the plastic granules, so that if the temperature of the plastic granules is too high, the first blower can be stopped and the second blower can be started to control the temperature. The material in the receiving hopper can be preheated by hot air to increase the melting speed of the subsequent plastic granules entering the blow molding machine, while recovering the waste heat emitted by the blow molding machine.

[0012] Preferably, another dust filter box is fixedly installed on the outer surface of the first blower, and the dust filter box is located at the air inlet of the first blower.

[0013] By adopting the above technical solution, the dust filter box can prevent dust and impurities in the outside air from entering the inside of the material receiving hopper, so that the plastic particles will not be affected by the incoming dust and hot air.

[0014] Preferably, the outer surface of the air inlet pipe is uniformly provided with air outlet holes, and the air outlet holes are located inside the material receiving hopper.

[0015] By adopting the above technical solution, hot air can be evenly heated in the hopper when it is sprayed out from the air inlet pipe through the evenly arranged air outlets.

[0016] Preferably, the exhaust holes are respectively arranged around the hopper, the barrier box is a ring design, the barrier box overlaps with the exhaust holes, and the exhaust holes and the barrier box are located above the air inlet pipe.

[0017] By adopting the above technical solution, the exhaust holes evenly arranged around the hopper and the ring design of the barrier box allow the air entering the hopper to be discharged to the maximum extent and evenly, further improving the heating of the plastic particles and allowing dust particles to be blown out to the maximum extent.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the feed hopper of the blow molding machine:

[0019] 1. After the plastic granules are fed into the hopper, the second blower can be activated to send air into the air inlet pipe and spray it out through the air outlet. The air can blow away the falling plastic granules and allow the dust and impurities in the plastic granules to enter the baffle box through the exhaust port. The air then enters the dust collection bag through the baffle box for filtration and collection. This allows the dust in the plastic granules to be removed during the feeding process and the dust particles to be collected.

[0020] 2. After the plastic granules are fed into the hopper through the opening of the electromagnetic valve, they can absorb heat from the blow molding machine through the heat exchange box. By starting the first blower, outside air can enter the heat exchange box and carry away the heat. The heated air will then enter the air inlet pipe and be discharged from the air outlet, so that the discharged hot air can evenly heat the plastic granules inside the hopper. This can be monitored by a temperature sensor. When the temperature is too high, the first blower will stop, and the second blower will start, sending outside air into the hopper to cool it down. This preheating and temperature control of the plastic in the hopper allows the plastic granules to melt more evenly and quickly after entering the blow molding machine, improving the uniformity of the mixing and melting.

[0021] 3. The heat exchange box can absorb the heat emitted when the blow molding machine melts plastic granules, allowing the heat emitted by the blow molding machine to be recovered and utilized. The design of the air outlet and exhaust port allows the hot air to be discharged more evenly, and the ring-shaped design of the baffle box allows the air in the receiving hopper to be discharged more evenly and quickly, thereby reducing the energy consumed when preheating the plastic granules, reducing energy consumption and use, and improving heating efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the material receiving hopper and heat exchange box of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the cover and suction bin of this utility model;

[0024] Figure 3 This is a cross-sectional perspective view of the cover and heat exchange box of this utility model.

[0025] Figure 4 This is a three-dimensional structural diagram of the vibration motor and ultrasonic level sensor of this utility model;

[0026] Figure 5 This is a cross-sectional perspective view of the exhaust port and the barrier box of this utility model.

[0027] Figure 6 This is a three-dimensional exploded view of the heat exchange box and dust filter box of this utility model.

[0028] In the diagram: 1. Hopper; 2. Hook lock; 3. Cover; 4. Suction motor; 5. Suction chamber; 6. Solenoid valve; 7. Vibration motor; 8. Ultrasonic level sensor; 9. Heat exchange box; 10. First blower; 11. Dust filter box; 12. Air inlet pipe; 13. Air outlet; 14. Exhaust port; 15. Barrier box; 16. Dust collection bag; 17. Second blower; 18. Temperature sensor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Currently, there are some technical shortcomings in the practical application of blow molding machine feed hoppers. For example, in terms of dust removal during feeding, many feed hoppers only use simple filters, which are not very effective at intercepting fine dust. Moreover, the filters are prone to clogging, leading to reduced feeding efficiency and frequent maintenance. In the preheating stage of plastic granules, common electric heating rods are used for direct heating. This direct heating method can cause uneven temperature distribution or local overheating, which can easily melt and decompose the plastic granules stored in the hopper, thus affecting the quality of the melted granule products in the subsequent blow molding. At the same time, it is difficult to accurately control the temperature to adapt to different plastic properties, which can interfere with the purity of the granules during blow molding. Furthermore, dust particles can easily affect the continuity and stability of the blow molding machine's output.

[0031] Please see Figure 1-6This utility model provides a technical solution: a blow molding machine feed hopper, including a material receiving hopper 1 and a heat exchange box 9. The material receiving hopper 1 is a conical bucket design and is connected to the blow molding machine. A hook lock 2 is fixedly installed on the outer surface of one end of the material receiving hopper 1, and the hook lock 2 is engaged with the cover 3. A vibration motor 7 is fixedly installed on the outer surface of the material receiving hopper 1. An ultrasonic level sensor 8 is fixedly installed inside the cover 3. An electromagnetic valve 6 is fixedly installed on the outer surface of the suction chamber 5, and one end of the electromagnetic valve 6 is located inside the suction chamber 5. The cover 3 is engaged on the outer surface of one end of the material receiving hopper 1, and the suction chamber 5 is fixedly installed on the outer surface of the cover 3. A suction motor 4 is fixedly installed on the outer surface of the suction chamber 5. The feed inlet of the material receiving hopper 1 is connected to the feeding bucket.

[0032] First, during blow molding, plastic granules need to be fed into the material hopper. The hook lock 2 can quickly fix and connect the material hopper 1 and the cover 3. Then, the suction motor 4 can be started and the solenoid valve 6 can be closed to create a negative pressure inside the suction chamber 5, allowing the material to be sucked into the suction chamber 5. The opening of the solenoid valve 6 allows the plastic granules to be fed into the material hopper 1. At the same time, the use of the vibration motor 7 allows the plastic granules to be discharged into the blow molding machine through the material hopper 1 without clogging. The use of the ultrasonic level sensor 8 can know the remaining amount of plastic granules in the material hopper 1 in real time, allowing the suction motor 4 and the solenoid valve 6 to be used repeatedly to pick up and remove material, so that the feeding hopper can automatically feed material, improving the practicality of the feeding hopper.

[0033] An air inlet pipe 12 is installed through the outer surface of the hopper 1. Air outlet holes 13 are evenly distributed on the outer surface of the air inlet pipe 12 and are located inside the hopper 1. A second blower 17 is fixed to the ground on one side of the hopper 1 and is connected to the air inlet pipe 12. A dust filter box 11 is fixedly installed on the outer surface of the second blower 17. Exhaust holes 14 are evenly distributed on the outer surface of the hopper 1 and are respectively arranged around the hopper 1. The barrier box 15 is a ring design and overlaps with the exhaust holes 14. The exhaust holes 14 and the barrier box 15 are located above the air inlet pipe 12. The barrier box 15 is fixedly installed on the outer surface of the hopper 1 and a dust collection bag 16 is fitted on the outer surface of the barrier box 15. The dust collection bag 16 and the barrier box 15 are fixed with clamps.

[0034] Furthermore, as the solenoid valve 6 is opened and the plastic granules are discharged into the hopper 1, the first blower 10 and the second blower 17 can be started simultaneously. This allows the dust and other particles in the falling plastic granules to be blown away by the air discharged through the air inlet pipe 12. The dust particles can then be blown into the barrier box 15 through the exhaust port 14, and the exhaust air is filtered and separated by the dust collection bag 16. This removes and collects the dust particles in the plastic granules, improving the quality of subsequent blow molding processing and enhancing the practicality and quality of the feed hopper.

[0035] The heat exchange box 9 is fixedly installed on the outer surface of the heating part of the blow molding machine, and the interior of the heat exchange box 9 is designed with fins. The outer surface of the heat exchange box 9 is fixedly installed with a first blower 10, and the air outlet of the first blower 10 is connected to one end of the heat exchange box 9. One end of the heat exchange box 9 is connected to the air inlet pipe 12. The outer surface of the air inlet pipe 12 is fixedly installed with a temperature sensor 18. The outer surface of the first blower 10 is fixedly installed with another dust filter box 11, and the dust filter box 11 is located at the air inlet of the first blower 10.

[0036] After the plastic granules are fully fed into the hopper 1, the heat exchange box 9 will recover and reuse the heat emitted by the blow molding machine. The start of the first blower 10 and the dust filter box 11 will draw outside air into the heat exchange box 9, allowing the air to pass through the heat exchange box 9 and carry away the heat. The heated air can be discharged through the air inlet pipe 12 and evenly discharged into the hopper 1 through the air outlet 13. At the same time, the temperature sensor 18 monitors the temperature of the plastic granules and the discharged air, so that the plastic granules can be heated evenly. When the temperature exceeds the set value, the first blower 10 is turned off and the second blower 17 is turned on to control the temperature of the plastic granules. This ensures that the temperature of the plastic granules can be heated evenly and the heat of the blow molding machine can be recovered and reused, reducing the energy consumed by heating the feed hopper, greatly improving the practicality of the feed hopper and improving the quality of the processed film.

[0037] Working principle: When feeding materials, the ultrasonic level sensor 8 monitors the remaining amount of plastic granules inside the hopper 1. When the amount of plastic granules is low, the suction motor 4 automatically starts and the solenoid valve 6 closes to suck the plastic granules into the suction chamber 5. After the material is sucked in, the solenoid valve 6 opens, allowing the plastic granules to fall into the hopper 1. Subsequently, the first blower 10 and the second blower 17 start simultaneously, allowing air to be evenly discharged into the hopper 1 through the air inlet pipe 12 and the air outlet 13 to clean the dust in the plastic granules. The dust can then enter the barrier box 15 through the exhaust port 14 and be discharged into the dust collection bag 16 for filtration. At the same time, the heat exchange box 9 absorbs the heat from the blow molding machine. In conjunction with the use of the first blower 10, the outside air can be filtered by the dust filter box 11 and then passed through the heat exchange box 9 for heating. This hot air can heat the plastic granules, improving the melting speed and quality of the plastic granules in the subsequent blow molding machine, allowing the plastic granules to be extruded into a film by the blow molding machine.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blow molding machine feed hopper, comprising a receiving hopper (1) and a heat exchange box (9), wherein the receiving hopper (1) is a conical bucket design and is connected to the blow molding machine, a cover (3) is fitted onto the outer surface of one end of the receiving hopper (1), and a suction chamber (5) is fixedly installed on the outer surface of the cover (3), and a suction motor (4) is fixedly installed on the outer surface of the suction chamber (5), wherein the feed inlet of the receiving hopper (1) is connected to a feeding bucket, characterized in that: An air inlet pipe (12) is installed through the outer surface of the hopper (1). A second blower (17) is fixed to the ground on one side of the hopper (1) and connected to the air inlet pipe (12). A dust filter box (11) is fixedly installed on the outer surface of the second blower (17). Exhaust holes (14) are evenly opened on the outer surface of the hopper (1). A barrier box (15) is fixedly installed on the outer surface of the hopper (1), and a dust collection bag (16) is fitted on the outer surface of the barrier box (15). The dust collection bag (16) and the barrier box (15) are fixed with a clamp.

2. The blow molding machine feed hopper according to claim 1, characterized in that: The outer surface of one end of the receiving hopper (1) is fixedly equipped with hook locks (2), and the hook locks (2) are engaged with the cover (3). The outer surface of the suction bin (5) is fixedly equipped with an electromagnetic valve (6), and one end of the electromagnetic valve (6) is located inside the suction bin (5).

3. The blow molding machine feed hopper according to claim 1, characterized in that: A vibration motor (7) is fixedly installed on the outer surface of the hopper (1), and an ultrasonic level sensor (8) is fixedly installed inside the cover (3).

4. The blow molding machine feed hopper according to claim 1, characterized in that: The heat exchange box (9) is fixedly installed on the outer surface of the heating part of the blow molding machine, and the interior of the heat exchange box (9) is designed with a fin shape. A first blower (10) is fixedly installed on the outer surface of the heat exchange box (9), and the air outlet of the first blower (10) is connected to one end of the heat exchange box (9). One end of the heat exchange box (9) is connected to the air inlet pipe (12), and a temperature sensing sensor (18) is fixedly installed on the outer surface of the air inlet pipe (12).

5. The blow molding machine feed hopper according to claim 4, characterized in that: Another dust filter box (11) is fixedly installed on the outer surface of the first blower (10), and the dust filter box (11) is located at the air inlet of the first blower (10).

6. The blow molding machine feed hopper according to claim 1, characterized in that: The outer surface of the air inlet pipe (12) is uniformly provided with air outlet holes (13), and the air outlet holes (13) are located inside the material receiving hopper (1).

7. The blow molding machine feed hopper according to claim 1, characterized in that: The exhaust holes (14) are respectively arranged around the hopper (1). The barrier box (15) is a ring design, and the barrier box (15) overlaps with the exhaust holes (14). The exhaust holes (14) and the barrier box (15) are located above the air inlet pipe (12).

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