Guide structure of injection molding machine

Abstract

The utility model belongs to the technical field of injection molding machine material guiding, and particularly relates to an injection molding machine material guiding structure which comprises a stock bin, a raw material crushing assembly, a cleaning assembly used for cleaning the bin wall and a quantitative discharging assembly are sequentially arranged in the stock bin from top to bottom, the crushing assembly comprises a sieve tray, leak holes are formed in the sieve tray, and the leak holes are communicated with the cleaning assembly. The raw materials enter the injection molding machine through the material guiding structure, in order to prevent large particles from existing in the raw materials, the crushing assembly is arranged in the material guiding structure, so that the raw materials enter the injection molding machine through the crushing assembly, the raw materials can be crushed through the crushing assembly, and the raw materials can be crushed through the crushing assembly. The small-particle raw materials directly fall off through the sieve plate, the large-particle raw materials fall on the sieve tray, are crushed through the crushing rod and fall off after meeting the melting size requirement, the cleaning assembly is arranged to prevent the raw materials from remaining on the stock bin, and quantitative falling of the raw materials is achieved through the quantitative discharging assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of material guiding of injection molding machines, in particular to a material guiding structure of an injection molding machine. Background Art

[0002] Injection molding machines are the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. When existing injection molding parts are being injected, the material is introduced into the injection molding machine head through a material guide structure, and then the corresponding injection molding is carried out.

[0003] CN219820466U discloses a material guiding structure of an injection molding machine, including a material injection barrel, a cleaning mechanism is provided on the material injection barrel, the bottom of the material injection barrel is fixedly connected to a discharge pipe, a valve is fixedly installed on the discharge pipe, the lower left end of the material injection barrel is fixedly connected to a connecting block, the inner side of the connecting block is slidably connected to a sliding rod, and the sliding rod passes through the connecting block, the bottom end of the sliding rod is rotatably connected to a supporting plate, the upper part of the supporting plate is provided with a placement port, and a material receiving mechanism is provided in the placement port. When the utility model is in use, after the guiding of the injection molding raw material is completed, it is convenient to collect the injection molding raw material remaining in the discharge pipe, and it is also convenient to collect the injection molding raw material remaining on the inner wall of the material injection barrel, thereby effectively avoiding the waste of injection molding raw material. However, during the granulation process of raw materials, equipment debugging or equipment maintenance and other operations will cause the diameter of plastic particles to be different from the set particle diameter. After large-particle plastics enter the injection molding machine, they are prone to incomplete melting, resulting in substandard quality of injection molded products and cost waste. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, the utility model provides a material guiding structure for an injection molding machine.

[0005] A material guiding structure for an injection molding machine includes a silo. A raw material crushing assembly, a cleaning assembly for cleaning the silo wall, and a quantitative material discharge assembly are sequentially arranged in the silo from top to bottom. The crushing assembly includes a sieve plate with leakage holes. The edge of the sieve plate is inclined upward and fixedly mounted on the silo wall. A plurality of crushing rods are provided on the upper end surface of the sieve plate, and the crushing rods are mounted on a rotating shaft.

[0006] Furthermore, the upper part of the rotating shaft is an air-drying section, which is a hollow structure. A through hole is provided on the side wall of the air-drying section. The top of the rotating shaft passes through the mounting seat and is connected to the drive motor. The mounting seat is provided with an air storage chamber, which is connected to the air inlet pipe.

[0007] Furthermore, several of the crushing rods are distributed outward in a divergent manner with the rotating shaft as the center, and crushing teeth are provided on the lower end surface of the crushing rod. The upper surface of the sieve plate is provided with several blocking rods distributed outward in a divergent manner with the rotating shaft as the center, and the blocking rods are provided with slots allowing the crushing teeth to pass through.

[0008] Furthermore, the cleaning assembly includes a fixing rod fixedly connected to the rotating shaft, and a scraper is connected to a side of the fixing rod away from the rotating shaft, and the scraper is in contact with the warehouse wall.

[0009] Furthermore, the side wall of the scraper located at the rotating front end is an inclined surface.

[0010] Furthermore, the quantitative feeding component includes a spiral blade arranged on a rotating shaft, the spiral blade is located at the discharge port, and the feed port is arranged at the top of the silo.

[0011] Furthermore, a plurality of sealing rings are sleeved on the rotating shaft above and below the air storage cavity.

[0012] Due to the adoption of the above technical solution, the beneficial technical effects of the utility model are:

[0013] 1. In the present invention, the raw materials enter the injection molding machine through the material guide structure. In order to prevent the presence of large particles in the raw materials, a crushing component is provided in the present invention. Small particles of raw materials fall directly through the sieve plate, and large particles of raw materials fall onto the sieve plate and are crushed by the crushing rod. After meeting the melting size requirements, they fall. By providing a cleaning component, raw materials are prevented from remaining on the hopper, and quantitative feeding of raw materials is achieved through the quantitative feeding component.

[0014] 2. In the utility model, the air inlet pipe is connected to the blowing device, and air is blown into the air storage chamber through the blowing device. The air enters the air drying section through the through hole and enters the silo through the through hole, thereby drying the raw materials and improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a material guiding structure of an injection molding machine according to the present utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a material guide structure of an injection molding machine according to the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the silo in this utility model.

[0018] In the figure, 1, silo, 2, sieve plate, 3, leakage hole, 4, crushing rod, 5, rotating shaft, 6, air drying section, 7, through hole, 8, mounting seat, 9, driving motor, 10, air storage chamber, 11, air inlet pipe, 12, crushing teeth, 13, blocking rod, 14, fixing rod, 15, scraper, 16, inclined surface 17, spiral blade, 18, discharge port, 19, feed port, 20, sealing ring. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on these drawings and embodiments, which all fall within the scope of protection of the present invention.

[0020] according to Figure 1-3 As shown, a material guiding structure of an injection molding machine includes a silo 1, in which a raw material crushing component, a cleaning component for cleaning the silo wall, and a quantitative feeding component are arranged from top to bottom. The crushing component includes a sieve plate 2, and the sieve plate 2 is provided with a leakage hole 3. The edge of the sieve plate 2 is inclined upward and fixedly mounted on the silo wall. The upper end surface of the sieve plate 2 is provided with a plurality of crushing rods 4, and the crushing rods 4 are mounted on a rotating shaft 5.

[0021] In the above specific embodiment, the raw materials enter the injection molding machine through the material guiding structure. In order to prevent the presence of large particles in the raw materials, a crushing component is provided in the utility model. Small-particle raw materials fall directly through the sieve plate, and large-particle raw materials fall onto the sieve plate 2. They are crushed by the crushing rod 4 and fall after meeting the melting size requirements. By providing a cleaning component, raw materials are prevented from remaining on the silo 1, and quantitative feeding of raw materials is achieved through the quantitative feeding component.

[0022] The upper part of the rotating shaft 5 is the air-drying section 6, which is a hollow structure. A through hole 7 is provided on the side wall of the air-drying section 6. The top of the rotating shaft 5 passes through the mounting seat 8 and is connected to the drive motor 9. The mounting seat 8 is provided with an air storage chamber 10, and the air storage chamber 10 is connected to the air inlet pipe 11. In the actual production process, the raw materials need to be air-dried before melting to prevent excessive moisture in the raw materials from affecting the quality of the product. In the utility model, the air inlet pipe 11 is connected to the blowing device, and air is blown into the air storage chamber 10 through the blowing device. The air enters the air-drying section 6 through the through hole 7 and enters the silo 1 through the through hole 7, thereby air-drying the raw materials.

[0023] Several of the crushing bars 4 are distributed outwardly in a divergent manner with the rotating shaft 5 as the center of the circle. Crushing teeth 12 are provided on the lower end surface of the crushing bar 4. The upper surface of the sieve plate 2 is provided with several blocking bars 13 distributed outwardly in a divergent manner with the rotating shaft 5 as the center of the circle. The blocking bars 13 are provided with slots for allowing the crushing teeth 12 to pass through. The rotation of the rotating shaft 5 drives the crushing bar to rotate. During the rotation of the crushing bar 4, the large-particle raw materials on the sieve plate 2 can be crushed.

[0024] The cleaning assembly includes a fixed rod 14 fixedly connected to the rotating shaft 5, and a scraper 15 is connected to the side of the fixed rod 14 away from the rotating shaft 5. The scraper 15 is in contact with the silo wall. The rotation of the rotating shaft 5 drives the scraper 15 to rotate along the inner wall of the silo 1, thereby removing the raw materials attached to the inner wall of the silo 1.

[0025] The side wall of the scraper 15 at the rotating front end is an inclined surface 16, which is convenient for scraping the raw materials on the inner wall of the silo 1.

[0026] The quantitative unloading component includes a spiral blade 17 arranged on the rotating shaft 5. The spiral blade 17 is located at the discharge port 18. The feed port 19 is arranged at the top of the silo 1, thereby realizing quantitative unloading of raw materials.

[0027] The rotating shaft 5 is sleeved with a plurality of sealing rings 20 above and below the air storage chamber 10 to ensure the sealing of the mounting seat 8.

[0028] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A material guiding structure for an injection molding machine, comprising a material bin (1), characterized in that: The silo (1) is provided with a raw material crushing assembly, a cleaning assembly for cleaning the silo wall and a quantitative material discharge assembly from top to bottom. The crushing assembly comprises a sieve plate (2). The sieve plate (2) is provided with a leakage hole (3). The edge of the sieve plate (2) is inclined upward and fixedly mounted on the silo wall. The upper end surface of the sieve plate (2) is provided with a plurality of crushing rods (4). The crushing rods (4) are mounted on a rotating shaft (5).

2. The material guiding structure of an injection molding machine according to claim 1, characterized in that: The upper part of the rotating shaft (5) is an air-drying section (6), and the air-drying section (6) is a hollow structure. A through hole (7) is provided on the side wall of the air-drying section (6). The top of the rotating shaft (5) passes through a mounting seat (8) and is connected to a driving motor (9). An air storage chamber (10) is provided on the mounting seat (8), and the air storage chamber (10) is connected to an air inlet pipe (11).

3. The material guiding structure of an injection molding machine according to claim 2, characterized in that: A plurality of the crushing rods (4) are distributed outwardly in a divergent manner with the rotating shaft (5) as the center of the circle, and crushing teeth (12) are provided on the lower end surface of the crushing rods (4). The upper surface of the sieve plate (2) is provided with a plurality of blocking rods (13) distributed outwardly in a divergent manner with the rotating shaft (5) as the center of the circle, and the blocking rods (13) are provided with slots for allowing the crushing teeth (12) to pass through.

4. The material guiding structure of an injection molding machine according to claim 3, characterized in that: The cleaning assembly comprises a fixed rod (14) fixedly connected to the rotating shaft (5); a scraper (15) is connected to the side of the fixed rod (14) away from the rotating shaft (5); and the scraper (15) is in contact with the warehouse wall.

5. The material guiding structure of an injection molding machine according to claim 4, characterized in that: The side wall of the scraper (15) located at the rotating front end is an inclined surface (16).

6. The material guiding structure of an injection molding machine according to claim 5, characterized in that: The quantitative feeding component comprises a spiral blade (17) arranged on a rotating shaft (5), wherein the spiral blade (17) is located at a discharge port (18), and a feed port (19) is arranged at the top of the silo (1).

7. The material guiding structure of an injection molding machine according to claim 6, characterized in that: A plurality of sealing rings (20) are sleeved on the rotating shaft (5) above and below the air storage chamber (10).

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