Automatic feeding structure and injection molding machine

Abstract

The utility model discloses an automatic feeding structure and an injection molding machine, and relates to the technical field of automatic feeding, the automatic feeding structure comprises a feeding hopper, a cover plate, a feed port and a material conveying pipe, the top of the feeding hopper is provided with the cover plate, the feed port is arranged in the cover plate in a penetrating manner, and the material conveying pipe is arranged above the feed port. According to the automatic feeding structure and the injection molding machine, when a forward and reverse motor rotates reversely, a rotating shaft can be driven to rotate, when the rotating shaft rotates, a gear can be driven to rotate, when the gear rotates, a tooth block can be meshed and driven to move in the direction close to a feeding hopper, and when the tooth block moves, a sliding rod can be driven to move; when the material conveying pipe is in butt joint with the cover plate, the trapezoidal clamping block can be driven to be clamped into the positioning block, so that the positioning block and the material conveying pipe are fixed, the material conveying pipe and the cover plate can be quickly and stably in butt joint through the simple and convenient mode, and the material conveying pipe is not prone to loosening.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic feeding technical field, concretely is a kind of automatic feeding structure and injection molding machine. BACKGROUND

[0002] Injection molding machine is a kind of thermoplastic plastic is made into various shapes of plastic products using plastic molding die main forming equipment, injection molding machine is widely used in various electronic products, photographic equipment, daily necessities etc. Manufacturing industry, injection molding machine when using, need to deliver plastic particles to feeding hopper, intercommunication between feeding hopper and injection molding machine, so that feeding hopper can automatically add material to the inside of injection molding machine, the existing automatic feeding structure still has certain defects when using.

[0003] The automatic feeding structure in the prior art is a part of the injection molding machine, the material can be delivered to the inside of the injection molding machine through the feeding hopper, and the material can be delivered through the delivery screw in the inside of the injection molding machine, in the process of delivery, the material can be heated through the heating mechanism, so that the plastic particles become molten state, the molten state plastic is injected into the mold, and the required plastic product is obtained after cooling, in the process of using the feeding hopper, it is difficult to control the speed of the material entering the inside of the injection molding machine according to the actual situation, and at the same time, there is always material in the inside of the injection molding machine, once the delivery mechanism of the injection molding machine fails, material waste is easily caused. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an automatic feeding structure and injection molding machine to solve the problem of the automatic feeding structure on the market that is not easy to control the material delivery speed.

[0005] To achieve the above object, the utility model provides the following technical scheme: an automatic feeding structure, comprising: a feeding hopper, a cover plate, a feed inlet and a material delivery pipe, the top of the feeding hopper is provided with a cover plate, the inside of the cover plate is provided with a feed inlet, the upper side of the feed inlet is provided with a material delivery pipe, the outside of the feeding hopper is welded with a support frame, the surface of the support frame is installed with a connecting box, the inside of the connecting box is installed with a forward and reverse motor, the output end of the forward and reverse motor is connected with a rotating shaft through a bearing between the connecting box, the outside of the rotating shaft is welded with a gear, the inside of the connecting box is connected with a T-shaped block, the feeding hopper and the connecting box are slidably connected with a sliding rod, one end of the sliding rod close to the connecting box is connected with a tooth block, the inside of the tooth block is provided with a T-shaped slot, the surface of the sliding rod is connected with a stop block, the inside of the feeding hopper is connected with a partition block, the inside of the partition block is provided with a through hole.

[0006] Preferably, the T-shaped block and the tooth block constitute a sliding structure through the T-shaped slot, and the gear and the tooth block constitute an engagement structure.

[0007] Preferably, a fixing block is connected to the surface of the cover plate near the feed inlet, a through groove is opened inside the fixing block, and a compression spring is connected inside the fixing block.

[0008] Preferably, a movable block is connected to the end of the compression spring, and a trapezoidal locking block is connected to the side of the movable block away from the compression spring.

[0009] Preferably, a connecting block is connected to the outer side of the material conveying pipe, and a positioning block is connected to the bottom of the connecting block.

[0010] An injection molding machine, wherein the bottom of the feeding hopper is connected to the injection molding machine body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: When the forward and reverse motors reverse, the automatic feeding structure and injection molding machine can drive the rotating shaft to rotate. When the rotating shaft rotates, it can drive the gear to rotate. When the gear rotates, it can mesh and drive the tooth block to move towards the feeding hopper. At the same time as the tooth block moves, it can drive the slide rod to move. When the moving block resets, it can drive the trapezoidal locking block to engage inside the positioning block, thereby fixing the positioning block and the material conveying pipe. This simple and convenient method can quickly and stably connect the material conveying pipe and the cover plate, and the material conveying pipe is not easy to loosen.

[0012] 1. The automatic feeding structure is an important component of injection molding machines. Traditional feeding hoppers have difficulty controlling the material conveying speed, leading to material waste. When the forward and reverse motors rotate in opposite directions, they drive the rotating shaft to rotate. The rotating shaft drives the gears to rotate, which in turn drives the gear block to move closer to the feeding hopper. Simultaneously, the gear block moves the sliding rod, which in turn moves the stop block. The stop block moves closer to the bottom of the through hole. When one end of the stop block moves to a designated position below the through hole, it blocks part of the material falling below the through hole, thus reducing the material's falling speed. The position of the stop block can be adjusted according to actual conditions. By controlling the stop block, the material conveying speed inside the feeding hopper can be controlled, thereby avoiding material waste.

[0013] 2. In use, the automatic feeding structure transports external materials into the feeding hopper via a material conveying pipe. Since the end of the material conveying pipe is usually directly inserted into the feeding hopper, it is prone to loosening, making it difficult to stably connect and position the pipe with the cover plate. When the end of the material conveying pipe is inserted into the through slot, the end of the positioning block can be inserted into the fixed block. The end of the positioning block can press against the inclined surface of the trapezoidal locking block. When the trapezoidal locking block is pressed, it can drive the moving block to move closer to the material conveying pipe. When the compression spring is compressed to its maximum extent, the end of the material conveying pipe can connect with the inlet. When the moving block resets, it can drive the trapezoidal locking block to engage with the positioning block, thus fixing the positioning block and the material conveying pipe. This simple and convenient method allows for quick and stable connection of the material conveying pipe to the cover plate, and the material conveying pipe is less likely to loosen. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the main sectional view of the feeding hopper of this utility model;

[0016] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the toothed block of this utility model;

[0017] Figure 4 This is a front view sectional view of the fixing block of this utility model.

[0018] In the diagram: 1. Feed hopper; 2. Cover plate; 3. Feed inlet; 4. Material conveying pipe; 5. Support frame; 6. Connecting box; 7. Forward and reverse motor; 8. Rotating shaft; 9. Gear; 10. T-block; 11. Slide rod; 12. Tooth block; 13. T-slot; 14. Stop block; 15. Divider block; 16. Through hole; 17. Fixing block; 18. Through groove; 19. Compression spring; 20. Moving block; 21. Trapezoidal locking block; 22. Connecting block; 23. Positioning block; 24. Injection molding machine body. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-3It is understood that this utility model provides a technical solution: an automatic feeding structure, including: a feeding hopper 1, a cover plate 2, a feed inlet 3, and a material conveying pipe 4. The top of the feeding hopper 1 is provided with a cover plate 2, and the feed inlet 3 is opened through the inside of the cover plate 2. The material conveying pipe 4 is provided above the feed inlet 3. A support frame 5 is welded to the outside of the feeding hopper 1. A connecting box 6 is installed on the surface of the support frame 5. A forward and reverse motor 7 is installed inside the connecting box 6. The output end of the forward and reverse motor 7 is connected to the connecting box 6 by a rotating shaft 8 through a bearing. Gear 9 is welded to the outside. T-shaped block 10 is connected inside the connecting box 6. Sliding rod 11 is slidably connected between the feeding hopper 1 and the connecting box 6. Tooth block 12 is connected to one end of the sliding rod 11 near the connecting box 6. T-shaped groove 13 is opened inside the tooth block 12. Stop block 14 is connected to the surface of the sliding rod 11. Dividing block 15 is connected inside the feeding hopper 1. Through hole 16 is opened inside the dividing block 15. T-shaped block 10 and tooth block 12 form a sliding structure through T-shaped groove 13. Gear 9 and tooth block 12 form a meshing structure.

[0021] In practical implementation, the automatic feeding structure is an important component of the injection molding machine. The traditional feeding hopper 1 is difficult to control the material conveying speed, which easily leads to material waste. When it is necessary to reduce the material conveying speed inside the feeding hopper 1, the forward and reverse motor 7 can be started. When the forward and reverse motor 7 reverses, it can drive the rotating shaft 8 to rotate. When the rotating shaft 8 rotates, it can drive the gear 9 to rotate. When the gear 9 rotates, it can mesh and drive the tooth block 12 to move closer to the feeding hopper 1. When the tooth block 12 moves, it can slide between the T-shaped groove 13 and the T-shaped block 10. At the same time, the tooth block 12 can drive the slide rod 11 to move. When the slide rod 11 moves, it can drive the stop block 14 to move. When the stop block 14 moves, it can move closer to the bottom of the through hole 16. When one end of the stop block 14 moves to the designated position below the through hole 16, the stop block 14 can block part of the bottom of the through hole 16, thereby reducing the speed of material falling. The position of the stop block 14 can be adjusted according to the actual situation.

[0022] See Figures 1-3 It can be seen that the speed of material conveying inside the feeding hopper 1 can be controlled by the stop block 14, thereby avoiding material waste.

[0023] See Figure 1 , Figure 2 and Figure 4It can be seen that a fixing block 17 is connected to the surface of the cover plate 2 near the feed inlet 3. A through groove 18 is opened inside the fixing block 17. A compression spring 19 is connected inside the fixing block 17. A moving block 20 is connected to the end of the compression spring 19. A trapezoidal locking block 21 is connected to the side of the moving block 20 away from the compression spring 19. A connecting block 22 is connected to the outside of the material conveying pipe 4. A positioning block 23 is connected to the bottom of the connecting block 22. A locking groove matching the size of the end of the trapezoidal locking block 21 is opened inside the positioning block 23.

[0024] In practical implementation, when the automatic feeding structure is in use, external materials can be transported into the feeding hopper 1 through the material conveying pipe 4. Since the end of the material conveying pipe 4 is usually directly inserted into the feeding hopper 1, the material conveying pipe 4 is prone to loosening, making it difficult to stably connect and position the material conveying pipe 4 with the cover plate 2. The end of the material conveying pipe 4 can be pushed towards the through groove 18. When the material conveying pipe 4 moves, it can drive the connecting block 22 and the positioning block 23 to move. When the end of the material conveying pipe 4 is inserted into the through groove 18, the end of the positioning block 23 can be inserted. Inside the fixed block 17, the end of the positioning block 23 can press the inclined surface of the trapezoidal locking block 21. When the trapezoidal locking block 21 is pressed, it can drive the moving block 20 to move closer to the material conveying pipe 4. When the moving block 20 moves, it can compress the compression spring 19. When the compression spring 19 is compressed to the maximum extent, the end of the material conveying pipe 4 can connect with the feed port 3. At the same time, the moving block 20 can be reset. When the moving block 20 is reset, it can drive the trapezoidal locking block 21 to engage inside the positioning block 23, thereby fixing the positioning block 23 and the material conveying pipe 4.

[0025] See Figure 1 , Figure 2 and Figure 4 It can be seen that this simple and convenient method can quickly and stably connect the material conveying pipe 4 to the cover plate 2, and the material conveying pipe 4 is not easy to loosen.

[0026] An injection molding machine, wherein the bottom of the feeding hopper 1 is connected to the injection molding machine body 24.

[0027] In summary, when using this automatic feeding structure and injection molding machine, when the forward and reverse motor 7 reverses, it can drive the rotating shaft 8 to rotate. When the rotating shaft 8 rotates, it can drive the gear 9 to rotate. When the gear 9 rotates, it can mesh and drive the toothed block 12 to move towards the feeding hopper 1. The speed of material conveying inside the feeding hopper 1 can be controlled by the stop block 14, thereby avoiding material waste. When the moving block 20 resets, it can drive the trapezoidal locking block 21 to engage inside the positioning block 23, thereby fixing the positioning block 23 and the material conveying pipe 4. This simple and convenient method can quickly and stably connect the material conveying pipe 4 to the cover plate 2, and the material conveying pipe 4 is not easy to loosen. The contents not described in detail in this description are existing technologies known to those skilled in the art.

[0028] 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 described 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 should be included within the protection scope of the present invention.

Claims

1. An automatic feeding structure, comprising: The feeding hopper (1), cover plate (2), feed inlet (3) and material conveying pipe (4) are characterized in that: a cover plate (2) is provided on the top of the feeding hopper (1), a feed inlet (3) is provided through the inside of the cover plate (2), a material conveying pipe (4) is provided above the feed inlet (3), a support frame (5) is welded to the outside of the feeding hopper (1), a connecting box (6) is installed on the surface of the support frame (5), a forward and reverse motor (7) is installed inside the connecting box (6), a rotating shaft (8) is connected to the output end of the forward and reverse motor (7) and the connecting box (6) through a bearing, a gear (9) is welded to the outside of the rotating shaft (8), a T-shaped block (10) is connected inside the connecting box (6), a sliding rod (11) is slidably connected between the feeding hopper (1) and the connecting box (6), and a toothed block (12) is connected to the end of the sliding rod (11) near the connecting box (6).

2. The automatic feeding structure according to claim 1, characterized in that: The toothed block (12) has a T-shaped groove (13) inside, the slide rod (11) is connected to a stop block (14), the feed hopper (1) is connected to a partition block (15) inside, and the partition block (15) has a through hole (16) inside.

3. The automatic feeding structure according to claim 2, characterized in that: The T-shaped block (10) and the toothed block (12) form a sliding structure through the T-shaped groove (13), and the gear (9) and the toothed block (12) form a meshing structure.

4. The automatic feeding structure according to claim 1, characterized in that: A fixing block (17) is connected to the surface of the cover plate (2) near the feed inlet (3). A through groove (18) is opened inside the fixing block (17), and a compression spring (19) is connected inside the fixing block (17).

5. The automatic feeding structure according to claim 4, characterized in that: The end of the compression spring (19) is connected to a moving block (20), and a trapezoidal locking block (21) is connected to the side of the moving block (20) away from the compression spring (19).

6. The automatic feeding structure according to claim 1, characterized in that: A connecting block (22) is connected to the outside of the material conveying pipe (4), and a positioning block (23) is connected to the bottom of the connecting block (22).

7. An injection molding machine that uses an automatic feeding structure as described in any one of claims 1-6, characterized in that: The bottom of the feeding hopper (1) is connected to the injection molding machine body (24).

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