Feeding structure of injection mold

Abstract

The utility model discloses an injection mold feeding structure which comprises an injection molding machine screw rod and a feeding pipe, a guide hopper is arranged on the feeding pipe, a heating mechanism used for heating materials is arranged on the guide hopper, the heating mechanism comprises a heating box fixedly connected to the guide hopper, a feeding hopper communicated with the interior of the heating box is arranged on the heating box, and the feeding hopper is arranged on the feeding pipe. Two material guiding plates are fixedly connected to the inner wall of the heating box, a plurality of electric heaters are arranged in the material guiding plates, and a temperature controller is arranged on the side wall of the heating box. The heating mechanism is arranged, before materials are poured into the material guide hopper, the materials flow on the two material guide plates, the multiple electric heaters heat the material guide plates to remove moisture in the materials, it can be avoided that a large number of bubbles exist in products in a mold, and therefore the quality of the products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection mold feeding structures, in particular to an injection mold feeding structure. Background Art

[0002] The injection screw is an important part of the injection molding machine. Its function is to convey, compact, melt, stir and pressurize the plastic. All of these are accomplished by the rotation of the screw in the barrel. When the screw rotates, the material is fed through the feeding structure on the screw.

[0003] In the prior art, the injection mold feeding structure is a feed hopper arranged on the screw, and the structure is relatively simple. However, some manufacturers use materials that have been stored for too long or improperly, resulting in some moisture in the materials. After the materials with moisture are heated and fed into the injection mold, surface defects such as bubbles, voids, silver threads, etc. may appear on the product, which reduces the surface gloss of the product and affects the appearance quality. It may also cause the product size to be unstable and the precision to be reduced. Therefore, it is necessary to design an injection mold feeding structure to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an injection mold feeding structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The injection mold feeding structure includes an injection molding machine screw and a feeding pipe, the feeding pipe is provided with a guide hopper, the guide hopper is provided with a heating mechanism for heating materials, the heating mechanism includes a heating box fixedly connected to the guide hopper, the heating box is provided with a feeding hopper connected to the interior thereof, two guide plates are fixedly connected to the inner wall of the heating box, a plurality of electric heaters are provided in the guide plates, a temperature controller is provided on the side wall of the heating box, the guide hopper and the side wall of the heating box are both provided with a drop port, and a delay mechanism for delaying the flow of materials is provided on the guide plate.

[0007] Preferably, the delay mechanism comprises a plurality of baffles fixedly connected to the upper end of the guide plate, and the plurality of baffles are all inclinedly arranged.

[0008] Preferably, the side wall of the heating box is connected to a conveying pipe through a connecting mechanism, a motor is provided on the conveying pipe, the motor output shaft is fixedly connected to a rotating shaft, a spiral blade is fixedly connected to the side wall of the rotating shaft, the conveying pipe is provided with a material hopper connected to the interior thereof, and the feed hopper is provided with a flange pipe.

[0009] Preferably, the connection mechanism comprises a connection plate fixedly connected to the side wall of the heating box, the side wall of the delivery pipe is fixedly connected to a mounting frame, and the mounting frame is connected to the connection plate by a plurality of bolts.

[0010] Preferably, a sealing cover is provided at the upper end of the material hopper, and the sealing cover is threadedly connected to the material hopper.

[0011] Preferably, the heating box is provided with a mounting pipe connected to the interior thereof, and a fan is provided on the mounting pipe.

[0012] The utility model has the following beneficial effects:

[0013] 1. This device is equipped with a heating mechanism. Before the material is poured into the guide hopper, the material flows on two guide plates. Multiple electric heaters heat the guide plates to remove moisture from the material, which can avoid a large number of bubbles in the product in the mold, thereby ensuring the quality of the product;

[0014] 2. The device is provided with a delay mechanism, which can prolong the retention time of the material on the guide plate through multiple baffles on the guide plate, and the moisture can be fully removed, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the injection mold feeding structure proposed by the utility model;

[0016] Figure 2 for Figure 1 A magnified view of the structure at A;

[0017] Figure 3 This is a rear view of the injection mold feeding structure proposed by the utility model.

[0018] In the figure: 1 injection molding machine screw, 2 feed pipe, 3 guide hopper, 4 heating box, 5 temperature controller, 6 feed hopper, 7 motor, 8 mounting frame, 9 material hopper, 10 guide plate, 11 electric heater, 12 baffle, 13 rotating shaft, 14 spiral blade, 15 conveying pipe, 16 connecting plate, 17 fan, 18 flange pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3The injection mold feeding structure includes an injection molding machine screw 1 and a feeding pipe 2. The feeding pipe 2 is provided with a guide hopper 3. The guide hopper 3 is provided with a heating mechanism for heating materials. The heating mechanism includes a heating box 4 fixedly connected to the guide hopper 3. The heating box 4 is provided with a feeding hopper 6 connected to the inside thereof. Two guide plates 10 are fixedly connected to the inner wall of the heating box 4. A plurality of electric heaters 11 are provided in the guide plates 10. A temperature controller 5 is provided on the side wall of the heating box 4. The guide hopper 3 and the side wall of the heating box 4 are both provided with a blanking port. Figure 1 As shown in the figure, the two are arranged up and down, and the inner bottom of the left side of the heating box 4 is provided with an inclined surface to prevent the material from piling up on the left side of the heating box 4.

[0021] The material guide plate 10 is provided with a delay mechanism for delaying the flow of materials. The delay mechanism includes a plurality of baffles 12 fixedly connected to the upper end of the material guide plate 10. The plurality of baffles 12 are all inclined.

[0022] In the utility model, the side wall of the heating box 4 is connected to the conveying pipe 15 through a connecting mechanism, the conveying pipe 15 is provided with a motor 7, the output shaft of the motor 7 is fixedly connected to the rotating shaft 13, the side wall of the rotating shaft 13 is fixedly connected to the spiral blade 14, the conveying pipe 15 is provided with a material hopper 9 connected to the interior thereof, the feed hopper 6 is provided with a flange pipe 18, so that the equipment can automatically lift the material, so that the operator does not need to manually pour the material into the feed hopper 6, and the conveying pipe 15 is provided with a connecting pipe, which is connected to the flange pipe 18 through a flange.

[0023] In the utility model, the connecting mechanism includes a connecting plate 16 fixedly connected to the side wall of the heating box 4, and the side wall of the conveying pipe 15 is fixedly connected to the mounting frame 8. The mounting frame 8 is connected to the connecting plate 16 by a plurality of bolts, so that the conveying pipe 15 can be disassembled, making the material lifting mechanism optional, and the user can add it more as needed.

[0024] In the utility model, a sealing cover is provided at the upper end of the material hopper 9, and the sealing cover is threadedly connected to the material hopper 9, so as to prevent the material hopper 9 from being filled with dust in daily life.

[0025] In the utility model, a mounting pipe communicating with the interior of the heating box 4 is provided on the heating box 4, and a fan 17 is provided on the mounting pipe. The fan 17 is an exhaust fan, which can discharge a large amount of hot air when the moisture content of the material is relatively high.

[0026] When in use, open the cover on the feed hopper 6 and pour the material into the heating box 4. When the material flows on the two guide plates 10, multiple electric heaters 11 heat the guide plates 10 to remove moisture from the material, thereby preventing some materials that have been stored for too long or improperly from being directly fed into the mold to be heated, resulting in a large number of bubbles in the product in the mold, affecting the quality of the product.

[0027] In addition, for the introduction of materials, the sealing cover can be removed, the materials can be poured into the material hopper 9, the motor 7 can be started, the output shaft of the motor 7 drives the rotating shaft 13 to rotate, the rotating shaft 13 drives the spiral blades 14 to rotate, and the spiral blades 14 lift the materials upward into the feed hopper 6, so as to realize the lifting of the materials.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and practical concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold feeding structure, comprising an injection molding machine screw (1) and a feeding pipe (2), characterized in that: The feed pipe (2) is provided with a guide hopper (3), and the guide hopper (3) is provided with a heating mechanism for heating materials, the heating mechanism comprises a heating box (4) fixedly connected to the guide hopper (3), the heating box (4) is provided with a feed hopper (6) connected to the interior thereof, the inner wall of the heating box (4) is fixedly connected with two guide plates (10), the guide plates (10) are provided with a plurality of electric heaters (11), the side wall of the heating box (4) is provided with a temperature controller (5), the side walls of the guide hopper (3) and the heating box (4) are both provided with a material drop opening, and the guide plate (10) is provided with a delay mechanism for delaying the flow of materials.

2. The injection mold feeding structure according to claim 1, characterized in that: The delay mechanism comprises a plurality of baffles (12) fixedly connected to the upper end of the guide plate (10), and the plurality of baffles (12) are all arranged at an angle.

3. The injection mold feeding structure according to claim 2, characterized in that: The side wall of the heating box (4) is connected to a conveying pipe (15) through a connecting mechanism, the conveying pipe (15) is provided with a motor (7), the output shaft of the motor (7) is fixedly connected to a rotating shaft (13), the side wall of the rotating shaft (13) is fixedly connected to a spiral blade (14), the conveying pipe (15) is provided with a material hopper (9) connected to the interior thereof, and the feed hopper (6) is provided with a flange pipe (18).

4. The injection mold feeding structure according to claim 3, characterized in that: The connection mechanism comprises a connection plate (16) fixedly connected to the side wall of the heating box (4); the side wall of the delivery pipe (15) is fixedly connected to a mounting frame (8); and the mounting frame (8) is connected to the connection plate (16) via a plurality of bolts.

5. The injection mold feeding structure according to claim 4, characterized in that: A sealing cover is provided at the upper end of the material hopper (9), and the sealing cover is threadedly connected to the material hopper (9).

6. The injection mold feeding structure according to claim 5, characterized in that: The heating box (4) is provided with a mounting pipe which is in communication with the interior thereof, and the mounting pipe is provided with a fan (17).

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