Feeding device of plastic bottle injection molding machine

Abstract

The utility model relates to the technical field of injection molding equipment, in particular to a feeding device of a plastic bottle injection molding machine. According to the technical scheme, the device comprises a tank body, a hopper, an extension pipe and a machine body, an extension plate is arranged on the machine body, the tank body is arranged on the extension plate, a pump body is arranged on the upper surface of the tank body, the tank body is communicated with the hopper through a connecting pipe, the hopper is arranged on the machine body, and the extension pipe is arranged at the lower end of the hopper. And an electric heating wire is arranged in the extension tube. Under the action of negative pressure, redundant materials in the hopper can be conveniently removed, follow-up production is facilitated, the humidity in the hopper can be effectively reduced in cooperation with the electric heating structure, and mutual bonding of plastic particles caused by the fact that the humidity in the hopper is too large is avoided.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and in particular to a feeding device for a plastic bottle injection molding machine. Background Technology

[0002] With the widespread use of plastic bottle packaging in many fields, plastic bottles are increasingly demonstrating their importance. Whether in beverages, dairy products, daily chemicals, pharmaceuticals, or other industries, the status of plastic bottles is becoming increasingly prominent. As a component of plastic packaging, they are crucial for ensuring product quality and shaping product personality.

[0003] An injection molding machine is a device that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting plastics.

[0004] The injection molding machine includes a feed cylinder, and the discharge port at the lower end of the feed cylinder is connected to the feed port of the injection molding machine. During production, the mixed injection molding material is put into the injection molding machine, and the injection molding material is heated to about 170 degrees Celsius in the injection molding machine to become semi-plasticized. The material is then extruded into the mold in a measured amount.

[0005] After a product of a certain specification is produced and the injection mold is changed, if there are still plastic particles in the feed cylinder of the plastic bottle injection molding machine, the remaining raw materials in the feed hopper need to be removed. However, the feed hopper of the existing injection molding machine is not convenient for removing the remaining raw materials, and manual removal is required. If the manual removal is not thorough, the raw materials required for the original product will still remain at the bottom of the inner cavity of the feed hopper, which will affect subsequent production.

[0006] Secondly, when working in environments with high humidity, excessive humidity in the hopper can cause plastic particles to stick together, affecting the uniform entry of materials into the injection molding machine.

[0007] Therefore, we propose a feeding device for a plastic bottle injection molding machine to solve the existing problems. Utility Model Content

[0008] The purpose of this utility model is to address the problems existing in the background art by proposing a feeding device for a plastic bottle injection molding machine.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for a plastic bottle injection molding machine, comprising:

[0010] The machine body comprises a tank, a hopper, an extension pipe, and a machine body. The machine body is provided with an extension plate, and the tank is provided on the extension plate. A pump body is provided on the upper surface of the tank. The tank is connected to the hopper through a connecting pipe. The hopper is located on the machine body. An extension pipe is provided at the lower end of the hopper. An electric heating wire is provided inside the extension pipe.

[0011] Preferably, the lower end of the tank is fitted with support legs by bolts;

[0012] The bottom end of the support leg is fixed to the upper surface of the extension plate by bolts;

[0013] A filter plate is bolted to the upper part of the inside of the tank.

[0014] The suction end of the pump body is inserted into the interior of the tank, and the suction end of the pump body is positioned above the filter plate;

[0015] A discharge port is installed at the bottom opening of the tank, and valve structures are provided on the discharge port and outlet.

[0016] Preferably, the top opening of the hopper is covered with a material cover;

[0017] The bottom opening of the hopper is equipped with a discharge port, which is fixed to the machine body by bolts. The inlet of the injection molding machine body is connected to the discharge port.

[0018] Preferably, a ring frame is installed on the inner wall of the extension tube, and heating wires are symmetrically installed inside the ring frame;

[0019] The extension tube has a threaded opening at the end opposite to the hopper, and a rotating cover is installed at the threaded opening at the end opposite to the hopper.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] During use, the feeding device of this utility model plastic bottle injection molding machine introduces the corresponding plastic masterbatch into the hopper, and the plastic masterbatch enters the injection molding machine through the discharge port to complete the feeding operation of the plastic bottle injection molding machine.

[0022] Secondly, when it is necessary to empty the plastic masterbatch in the hopper, the valve structure of the discharge port can be closed to create a sealed environment in the hopper. At this time, the pump body is controlled to work, and the pump body draws air from the inside of the tank to create a negative pressure state. Under the suction of the negative pressure, the remaining particles in the hopper can be drawn into the tank. The particles are blocked by the filter plate inside the tank and remain in the tank. Finally, they fall to the discharge port under the action of gravity. Personnel only need to open the discharge port periodically to complete the recycling of particles.

[0023] Furthermore, after the particles in the hopper have been removed, the rotating cover can be unscrewed, and then the heating wire can be energized to generate heat. Under the action of negative pressure, outside air enters the hopper through the heating wire, and the air carrying heat dries the inside of the hopper, which can effectively reduce the humidity inside the hopper.

[0024] This invention, through the action of negative pressure, not only facilitates the removal of excess material from the hopper, thus facilitating subsequent production, but also, in conjunction with the electric heating structure, effectively reduces the humidity inside the hopper, preventing excessive humidity from causing the plastic particles to stick together. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0026] Figure 2 This is a side view of the structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the hopper structure of this utility model;

[0028] Figure 4 For the present utility model Figure 3 A cross-sectional structural diagram.

[0029] Figure label:

[0030] 1. Extension plate; 2. Support legs; 3. Discharge port; 4. Tank body; 5. Filter plate; 6. Pump body; 7. Connecting pipe; 8. Material cover; 9. Hopper; 10. Rotating cover; 11. Extension pipe; 12. Discharge port; 13. Machine body; 14. Ring frame; 15. Heating wire. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] like Figures 1-4 As shown, the present invention proposes a feeding device for a plastic bottle injection molding machine, comprising:

[0034] The machine body 13 includes a tank 4, a hopper 9, an extension pipe 11, and a machine body 13. An extension plate 1 is provided on the machine body 13, and a tank 4 is provided on the extension plate 1. A pump body 6 is provided on the upper surface of the tank 4. The tank 4 is connected to the hopper 9 through a connecting pipe 7. The hopper 9 is located on the machine body 13. An extension pipe 11 is provided at the lower end of the hopper 9, and an electric heating wire 15 is provided inside the extension pipe 11.

[0035] Based on Example 1:

[0036] During use, the corresponding plastic masterbatch is introduced into the hopper 9, and the plastic masterbatch enters the injection molding machine through the discharge port 12 to complete the feeding operation of the plastic bottle injection molding machine.

[0037] Secondly, when it is necessary to empty the plastic masterbatch in the hopper 9, the valve structure of the discharge port 12 can be closed to form a sealed environment in the hopper 9. At this time, the pump body 6 is controlled to work, and the pump body 6 draws air from the inside of the tank 4 to form a negative pressure state. Under the suction of the negative pressure, the remaining particles in the hopper 9 can be drawn into the tank 4. The particles are blocked by the filter plate 5 inside the tank 4 and remain in the tank 4. Finally, they fall to the discharge port 3 under the action of gravity. Personnel only need to open the discharge port 3 periodically to complete the recycling of particles.

[0038] Furthermore, after the particles in the hopper 9 have been removed, the rotating cover 10 can be unscrewed, and then the heating wire 15 can be energized to generate heat. Under the action of negative pressure, outside air enters the hopper 9 through the heating wire 15, and the air carrying heat dries the inside of the hopper 9, which can effectively reduce the humidity inside the hopper 9.

[0039] Example 2

[0040] like Figures 1-4 As shown, the feeding device for a plastic bottle injection molding machine proposed in this utility model, compared with Embodiment 1, further includes:

[0041] The lower end of the tank body 4 is fitted with support legs 2 by bolts;

[0042] The bottom end of the support leg 2 is fixed to the upper surface of the extension plate 1 by bolts;

[0043] A filter plate 5 is bolted to the upper part of the inside of the tank 4.

[0044] The suction end of the pump body 6 is inserted into the inside of the tank 4, and the suction end of the pump body 6 is positioned above the filter plate 5.

[0045] A discharge port 3 is installed at the bottom opening of the tank body 4, and valve structures are provided on the discharge port 3 and the outlet 12.

[0046] The pump body 6 is controlled to work. The pump body 6 draws air from the inside of the tank 4 to form a negative pressure state. Under the suction of the negative pressure, the remaining particles in the hopper 9 can be drawn into the tank 4. The particles are blocked by the filter plate 5 inside the tank 4 and remain in the tank 4. Finally, they fall to the discharge port 3 under the action of gravity.

[0047] Example 3

[0048] like Figures 1-4 As shown, the feeding device for a plastic bottle injection molding machine proposed in this utility model, compared with Embodiment 1, further includes:

[0049] A material cover 8 is provided at the top opening of the hopper 9 to facilitate the replenishment of materials in the hopper 9.

[0050] A discharge port 12 is installed at the bottom opening of the hopper 9. The discharge port 12 is fixed to the machine body 13 by bolts. The inlet of the injection molding machine body 13 is connected to the discharge port 12.

[0051] Example 4

[0052] like Figures 1-4 As shown, the feeding device for a plastic bottle injection molding machine proposed in this utility model, compared with Embodiment 1, further includes:

[0053] A ring frame 14 is installed on the inner wall of the extension tube 11, and heating wires 15 are symmetrically installed inside the ring frame 14.

[0054] The extension tube 11 has a threaded opening at one end away from the hopper 9, and a rotating cover 10 is installed at the threaded opening at the other end of the extension tube 11 away from the hopper 9.

[0055] The rotating cover 10 can be unscrewed, and then the heating wire 15 can be energized to generate heat. Under the action of negative pressure, outside air enters the hopper 9 through the heating wire 15. The air carrying heat dries the inside of the hopper 9, which can effectively reduce the humidity inside the hopper 9.

[0056] It should be noted that the pump body 6 and heating wire 15 are existing mature technologies, and their working principle and internal structure are known to those skilled in the art. This utility model only utilizes their functions and does not improve their internal structure. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0057] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0058] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A feeding device for a plastic bottle injection molding machine, comprising a tank (4), a hopper (9), an extension pipe (11), and a machine body (13), characterized in that: The machine body (13) is provided with an extension plate (1), the extension plate (1) is provided with a tank (4), the upper surface of the tank (4) is provided with a pump body (6), the tank (4) is connected to the hopper (9) through a connecting pipe (7), the hopper (9) is provided on the machine body (13), the lower end of the hopper (9) is provided with an extension pipe (11), and the extension pipe (11) is provided with an electric heating wire (15).

2. The feeding device for a plastic bottle injection molding machine according to claim 1, characterized in that: The lower end of the tank body (4) is fitted with a support leg (2) by bolts; The bottom end of the support leg (2) is fixed to the upper surface of the extension plate (1) by bolts; A filter plate (5) is bolted to the upper part of the inside of the tank (4); The suction end of the pump body (6) is inserted into the interior of the tank (4), and the suction end of the pump body (6) is located above the filter plate (5); The bottom opening of the tank (4) is equipped with a discharge port (3), and the discharge port (3) and the outlet (12) are equipped with valve structures.

3. The feeding device for a plastic bottle injection molding machine according to claim 1, characterized in that: The top opening of the hopper (9) is covered with a material cover (8); The bottom opening of the hopper (9) is equipped with a discharge port (12), which is fixed to the machine body (13) by bolts. The feed port of the injection molding machine body (13) is connected to the discharge port (12).

4. The feeding device for a plastic bottle injection molding machine according to claim 1, characterized in that: The inner wall of the extension tube (11) is fitted with a ring frame (14), and heating wires (15) are symmetrically installed inside the ring frame (14); The extension tube (11) has a threaded opening at one end away from the hopper (9), and a rotating cover (10) is installed at the other end of the extension tube (11) away from the hopper (9) via the thread.

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