A material blocking structure for the feed inlet of an injection molding machine

Abstract

This utility model discloses an anti-clogging structure for the feed inlet of an injection molding machine, including an injection molding machine body. A connecting pipe is fixedly connected to the top of the injection molding machine body, and a discharge pipe is fixedly connected to the top of the connecting pipe. A material hopper is fixedly connected to the top of the discharge pipe, and an upper top plate is fixedly connected inside the material hopper. This utility model uses inclined plates, supports, and stainless steel chains to disperse the material, and arc-shaped plates and T-shaped rods to prevent clogging at the discharge positions of the discharge pipe and connecting pipe. All of these are achieved through smooth rotation, preventing scraping of the conical inner wall of the material hopper and related feeding parts. This effectively protects the equipment's sealing structure and the smoothness of its inner wall, ensuring continuous and smooth subsequent feeding and significantly reducing damage to the equipment. Compressed gas delivered by an air pump is injected through the conical hole of the drive shaft, working in conjunction with the mechanical dispersing action to disperse the material from multiple dimensions, making the anti-clogging more comprehensive and efficient, further reducing the probability of material blockage.

Description

Technical Field

[0001] This utility model relates to the field of anti-clogging technology, and in particular to an anti-clogging structure for the feed inlet of an injection molding machine. Background Technology

[0002] In injection molding, the feed inlet of the injection molding machine barrel serves as the "first barrier" for plastic granules entering the equipment, and its unobstructed flow directly affects the continuity and stability of injection molding production. However, in actual production, material blockage at the feed inlet frequently occurs, adversely affecting production efficiency and product quality. Poor material flowability is the key cause of blockage. Materials with poor flowability experience obstructed transport at the feed inlet during the feeding process, easily accumulating and leading to blockage.

[0003] In existing technologies, the processing can easily cause adverse effects on materials and equipment. Often, manual unblocking is required, such as using tools to pry or pry open blockages. This method not only easily leads to material contamination but may also damage the sealing structure or smoothness of the inner wall of the feed inlet due to improper operation, thus affecting the smoothness of subsequent feeding. Therefore, we propose an anti-blocking structure for the injection molding machine feed inlet to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an anti-clogging structure for the feed inlet of an injection molding machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A material blocking structure for the feed inlet of an injection molding machine includes an injection molding machine body. A connecting pipe is fixedly connected to the top of the injection molding machine body. A discharge pipe is fixedly connected to the top of the connecting pipe. A material hopper is fixedly connected to the top of the discharge pipe. An upper top plate is fixedly connected inside the material hopper. Two arc-shaped pieces are rotatably connected inside the discharge pipe. A T-shaped rod is fixedly connected between the two arc-shaped pieces. A hollow drive shaft is fixedly connected to the top of the T-shaped rod. Multiple tapered holes are formed on the outer wall of the drive shaft. Four supports are fixedly connected to the outer wall of the drive shaft. Two inclined plates are fixedly connected to each pair of the four supports. Two stainless steel chains are fixedly connected to each pair of the four supports. A rotary joint is fixedly connected to the top of the drive shaft. A drive assembly is provided on the top of the upper top plate.

[0007] Preferably, the drive assembly includes a motor, and a device frame is fixedly connected to the top of the upper plate. The inner wall of the device frame is fixedly connected to the outer wall of the motor. Synchronous pulleys are fixedly sleeved on the outer walls of the motor output shaft and the transmission shaft. The outer walls of the two synchronous pulleys are meshed with the same synchronous transmission belt. By setting the drive assembly, the transmission shaft is driven to rotate, thereby driving the four supports and the two inclined plates to rotate.

[0008] Preferably, a tapered roller bearing is fixedly sleeved on the outer wall of the drive shaft, and the outer ring of the tapered roller bearing is fixedly connected to the top of the upper plate. The drive shaft is rotated by means of the tapered roller bearing.

[0009] Preferably, the two inclined plates and four supports are all located inside the hopper.

[0010] Preferably, the bottom of the upper top plate has a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the drive shaft.

[0011] Preferably, the top of the rotary joint is fixedly connected to an air inlet pipe, one end of which penetrates the inner wall of the equipment frame and is fixedly connected to an air pump. The compressed gas generated by the air pump is transported through the air inlet pipe.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution uses inclined plates, supports, and stainless steel chains to disperse materials, while arc-shaped plates and T-shaped rods prevent blockages at the material discharge points of the feeding and connecting pipes. All of this is achieved through smooth rotation, without scraping the conical inner wall of the hopper or related feeding parts. This effectively protects the equipment's sealing structure and the smoothness of its inner wall, ensuring continuous and smooth subsequent feeding and significantly reducing damage to the equipment. Compressed gas delivered by the air pump is injected through the conical holes of the drive shaft, working in conjunction with the mechanical dispersion action to disperse materials from multiple dimensions, making anti-blockage more comprehensive and efficient, and further reducing the probability of material blockage. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of an anti-clogging structure for the feed inlet of an injection molding machine proposed in this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of an anti-clogging structure for the feed inlet of an injection molding machine proposed in this utility model;

[0017] Figure 3 This is a partial cross-sectional schematic diagram of an anti-clogging structure for the feed inlet of an injection molding machine proposed in this utility model.

[0018] In the diagram: 1. Injection molding machine body; 2. Connecting pipe; 3. Feed pipe; 4. Material hopper; 5. Top plate; 6. Arc-shaped plate; 7. T-shaped rod; 8. Drive shaft; 9. Tapered hole; 10. Bracket; 11. Inclined plate; 12. Stainless steel chain; 13. Rotary joint; 14. Air inlet pipe; 15. Motor; 16. Synchronous pulley; 17. Synchronous transmission belt; 18. Equipment frame. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figures 1-3 As shown, this invention relates to an anti-clogging structure for the feed inlet of an injection molding machine, comprising an injection molding machine body 1, a connecting pipe 2 fixedly connected to the top of the injection molding machine body 1, a discharge pipe 3 fixedly connected to the top of the connecting pipe 2, a material hopper 4 fixedly connected to the top of the discharge pipe 3, an upper top plate 5 fixedly connected inside the material hopper 4, and two arc-shaped pieces 6 rotatably connected inside the discharge pipe 3. A T-shaped rod 7 is fixedly connected between the two arc-shaped pieces 6. When the T-shaped rod 7 rotates, it drives the two arc-shaped pieces 6 to rotate. The two work together to directly act on the discharge position of the discharge pipe 3 and the connecting pipe 2, and by rotating, disturb the material in this area, effectively preventing the material from accumulating and clogging at these key discharge positions.

[0021] The top of the T-shaped rod 7 is fixedly connected to a hollow drive shaft 8. The bottom of the upper top plate 5 has a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the drive shaft 8. A tapered roller bearing is fixedly fitted on the outer wall of the drive shaft 8, and the outer ring of the tapered roller bearing is fixedly connected to the top of the upper top plate 5.

[0022] The outer wall of the drive shaft 8 has multiple tapered holes 9. These tapered holes 9 can eject the compressed gas inside the drive shaft 8 outwards, and the tapered structure helps to make the gas ejection more directional and impactful, thus more effectively dispersing the surrounding materials.

[0023] Four supports 10 are fixedly connected to the outer wall of the drive shaft 8. The four supports 10 are fixedly connected to two inclined plates 11 in pairs. The two inclined plates 11 and the four supports 10 are all located inside the hopper 4. The two inclined plates 11 can specifically disperse the material attached to the conical inner wall of the hopper 4 to prevent the material from accumulating on the wall. The four supports 10 directly agitate and disperse the material in the hopper 4. The two work together to act on the material from different positions, improving the overall dispersion of the material.

[0024] The four supports 10 are fixedly connected in pairs to two stainless steel chains 12, which can utilize the flexibility of the stainless steel chains 12 to more flexibly agitate and disperse the materials in the hopper 4.

[0025] A rotary joint 13 is fixedly connected to the top of the drive shaft 8, and an air inlet pipe 14 is fixedly connected to the top of the rotary joint 13. One end of the air inlet pipe 14 penetrates the inner wall of the equipment frame 18 and is fixedly connected to an air pump. The air inlet pipe 14 can stably deliver the compressed gas generated by the air pump to the rotary joint 13.

[0026] The top of the upper plate 5 is provided with a drive assembly, which includes a motor 15. The top of the upper plate 5 is fixedly connected to a device frame 18. The outer wall of the device frame 18 has multiple heat dissipation holes. The inner wall of the device frame 18 is fixedly connected to the outer wall of the motor 15. The output shaft of the motor 15 and the outer wall of the transmission shaft 8 are both fixedly fitted with synchronous pulleys 16. The outer walls of the two synchronous pulleys 16 are meshed with the same synchronous transmission belt 17. The synchronous transmission belt 17 is tensioned by an existing tensioning wheel.

[0027] Working principle: During use, materials are placed in the hopper 4. To prevent material blockage, the motor 15 drives the connected synchronous pulley 16 to rotate. Under the action of the synchronous transmission belt 17, another synchronous pulley 16 rotates, which in turn drives the connected transmission shaft 8. The rotation of the transmission shaft 8 drives the four supports 10 and the two inclined plates 11 to rotate. The two inclined plates 11 disperse the material on the conical inner wall of the hopper 4. Meanwhile, the four supports 10 and the two connected stainless steel... When the steel chain 12 rotates, it directly disperses the material in the hopper 4. In conjunction with the operation of the air pump, compressed gas enters the rotary joint 13 through the air inlet pipe 14, and then enters the drive shaft 8 through the rotary joint 13. Finally, it is sprayed outward through the two conical holes 9 to further disperse the material. The rotation of the drive shaft 8 drives the T-shaped rod 7 to rotate, and the rotation of the T-shaped rod 7 drives the two arc-shaped plates 6 to rotate. The two arc-shaped plates 6 and the T-shaped rod 7 prevent material blockage at the feeding positions of the feeding pipe 3 and the connecting pipe 2 through rotation.

[0028] It should be noted that, in actual use, an existing PLC controller can be added. The PLC controller is electrically connected to the injection molding machine body 1, motor 15, and air pump to facilitate the control of the overall operation.

[0029] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0030] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material blocking prevention structure for a feeding port of an injection molding machine, comprising an injection molding machine body (1), characterized in that, The top of the injection molding machine body (1) is fixedly connected to a connecting pipe (2), the top of the connecting pipe (2) is fixedly connected to a discharge pipe (3), the top of the discharge pipe (3) is fixedly connected to a hopper (4), the inside of the hopper (4) is fixedly connected to an upper top plate (5), the inside of the discharge pipe (3) is rotatably connected to two arc-shaped pieces (6), a T-shaped rod (7) is fixedly connected between the two arc-shaped pieces (6), the top of the T-shaped rod (7) is fixedly connected to a hollow transmission shaft (8), the outer wall of the transmission shaft (8) is provided with multiple tapered holes (9), the outer wall of the transmission shaft (8) is fixedly connected to four supports (10), the four supports (10) are fixedly connected to two inclined plates (11) in pairs, the four supports (10) are fixedly connected to two stainless steel chains (12) in pairs, the top of the transmission shaft (8) is fixedly connected to a rotary joint (13), and the top of the upper top plate (5) is provided with a drive assembly.

2. The material blocking prevention structure for a feeding port of an injection molding machine according to claim 1, wherein The drive assembly includes a motor (15), and a device frame (18) is fixedly connected to the top of the upper plate (5). The inner wall of the device frame (18) is fixedly connected to the outer wall of the motor (15). The output shaft of the motor (15) and the outer wall of the transmission shaft (8) are both fixedly fitted with synchronous pulleys (16), and the outer walls of the two synchronous pulleys (16) are meshed with the same synchronous transmission belt (17).

3. The anti-blocking structure of the feeding port of the injection molding machine according to claim 1, characterized in that, The outer wall of the drive shaft (8) is fixedly fitted with a tapered roller bearing, and the outer ring of the tapered roller bearing is fixedly connected to the top of the upper plate (5).

4. The anti-blocking structure of the feeding port of an injection molding machine according to claim 1, characterized in that, The two inclined plates (11) and the four supports (10) are all located inside the hopper (4).

5. The anti-blocking structure of the feeding port of an injection molding machine according to claim 1, characterized in that, The bottom of the upper plate (5) is provided with a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the drive shaft (8).

6. The anti-blocking structure of the feeding port of an injection molding machine according to claim 2, characterized in that, The top of the rotary joint (13) is fixedly connected to an air inlet pipe (14), one end of which penetrates the inner wall of the equipment frame (18) and is fixedly connected to an air pump.

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