Feeding mechanism for lunch box injection molding

Abstract

The utility model discloses a feeding mechanism for meal box injection molding. The feeding mechanism comprises a storage bin, a lower-layer conveying pipe, a vertical auger elevator, an upper-layer conveying pipe, a supporting frame and a cleaning device. By arranging the cleaning device, dust can be conveniently collected while dust adsorption is conducted on raw material particles, dust is prevented from being discharged into the production environment, dust on the surfaces of the particles is adsorbed through starting of the draught fan, the rotating frame is driven to rotate while air rapidly flows, the raw material particles are stirred, and the dust removal efficiency is improved. The second assembly body is divided into an upper area and a lower area through a hollowed-out partition plate, non-woven fabric is laid on the hollowed-out partition plate, dust is prevented from being discharged, and therefore dust is blocked in a collecting area, the non-woven fabric is preliminarily positioned through a positioning plate, and then the dust is effectively cleaned through the arrangement of a positioning frame and the pressing effect of a guide frame on the positioning frame. The non-woven fabric is stably laid in the collecting area, stable placement is achieved, and dust is prevented from being discharged.

Description

Technical Field

[0001] The utility model relates to the field related to lunch box injection molding, in particular to a feeding mechanism for lunch box injection molding. Background Art

[0002] Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting. Injection molding is inseparable from the injection molding machine (referred to as injection machine or injection molding machine). It is the main molding equipment for thermoplastic plastics or thermosetting materials using plastic molding molds to make plastic products of various shapes. The components of injection molding include: loading, injection molding and molds.

[0003] The Chinese patent with patent number CN202023029963.4 discloses "A lunch box injection molding feeding mechanism", which realizes vertical feeding by setting a vertical conveying pipe and a spiral blade combination, thereby saving space and site rental costs. The air pump is connected to assist the upward transmission of the material, and the dust in the material is blown out from the screen pipe to keep the material clean.

[0004] This structure has certain advantages, but still has some shortcomings:

[0005] During the feeding process, the feeding mechanism uses an air pump to assist in conveying materials and blows dust in the materials out of the screen tube. This method makes it impossible to collect dust in a centralized manner, and this method causes the dust to scatter in the production space, polluting the production space. At the same time, the dust also falls back into the first storage bin, aggravating the pollution of the granular raw materials. The air pump is then used to clean the material repeatedly, and such a cycle increases the cleaning burden and the environmental burden, which is not conducive to achieving hygienic and environmentally friendly production. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a feeding mechanism for injection molding of a lunch box.

[0007] To achieve the above object, the utility model adopts the following technical solutions: a feeding mechanism for plastic injection of lunch boxes, including a storage bin, a lower layer conveying pipe, a vertical auger elevator, an upper layer conveying pipe, a support frame, and a cleaning device. The right end of the storage bin is provided with a lower layer conveying pipe, the right end of the lower layer conveying pipe is connected to the vertical auger elevator, the right end of the vertical auger elevator is provided with an upper layer conveying pipe, the left end of the support frame is fixed to the storage bin, the bottom end of the cleaning device is fixed to the support frame, and the top end of the cleaning device is connected to the upper layer conveying pipe. The cleaning device includes an assembly body, a support shaft, a rotating frame, a ventilation plate, a feeding pipe, a solenoid valve, a fan, a guiding frame, and a collecting member. The bottom end of the assembly body is fixed to the support frame, and the top end of the assembly body is connected to the upper layer conveying pipe. A support shaft is fixed in the middle of the assembly body, a rotating frame is rotatably connected to the outside of the support shaft, a ventilation plate is fixed to the left end of the assembly body, and a feeding pipe is arranged at the bottom end of the assembly body. A solenoid valve is installed in the middle of the feeding pipe, the fan is installed at the right end of the assembly body, the left end of the guiding frame is bolted to the assembly body, and a collecting member is threadedly connected to the bottom end of the guiding frame.

[0008] As a further scheme of the utility model, the collecting member includes a second assembly body, a collecting area, an exhaust area, a hollow partition board, a positioning plate, a non-woven fabric, and a positioning frame. The top end of the second assembly body is threadedly connected to the guiding frame. A hollow partition board is fixed inside the second assembly body. A collecting area is arranged at the upper end of the hollow partition board, and an exhaust area is arranged at the lower end of the hollow partition board. A positioning plate is fixed inside the collecting area. The non-woven fabric is in contact with the hollow partition board and the positioning plate respectively. The bottom end of the positioning frame is in contact with the non-woven fabric, and the top end of the positioning frame is in contact with the guiding frame.

[0009] As a further scheme of the utility model, both the upper and lower ends of the positioning frame are in a hollow shape, which is convenient for the circulation of air. And the bottom end of the positioning frame presses the non-woven fabric to position the non-woven fabric, so that the non-woven fabric can stably play a role in separating dust, blocking the dust inside the collecting area, and discharging the clean air from the exhaust area.

[0010] As a further scheme of the utility model, the cross section of the second assembly body is in an "L" shape, which is convenient for discharging the air upward and diffusing the air, avoiding the rapid and concentrated spraying of the extracted air to the bottom end.

[0011] As a further scheme of the utility model, the bottom end of the guiding frame is cylindrical and has a thread on its outer side, which is convenient for threadedly installing the collecting member at the bottom end of the guiding frame, realizing quick connection and disassembly, facilitating the cleaning of the collecting area in the collecting member, and improving the cleaning convenience of the collected dust.

[0012] As a further solution of the present utility model, the fan blades of the rotating frame are in a mesh shape, which is convenient for receiving and stirring granular raw materials, so that the dust adhering to the surface thereof is adsorbed from the mesh holes to the collection area. This structure effectively avoids a large amount of dust adhering to the rotating frame and is convenient for quick cleaning of the dust.

[0013] As a further solution of the present utility model, there are two groups of ventilation plates, which are distributed left and right, both of which play a role in facilitating air circulation, and the ventilation plate provided at the right end can also prevent raw material particles from being adsorbed to the collection area.

[0014] As a further solution of the present utility model, the rotating frame is made of stainless steel, with high strength, durable in use, not easily deformed, and not easily corroded.

[0015] Compared with the prior art, the present utility model provides a feeding mechanism for lunch box injection molding, which has the following beneficial effects:

[0016] 1. In the present utility model, by setting a cleaning device, it is convenient to adsorb dust from raw material particles and also convenient to collect the dust, avoiding the dust being discharged into the production environment. By starting the fan, the dust on the surface of the particles is adsorbed, and while the air is flowing rapidly, the rotating frame is driven to rotate, stirring the raw material particles to achieve an efficient cleaning effect. Moreover, the collecting part connected by a threaded connection at the bottom can be quickly installed and disassembled, facilitating the treatment of the collected dust. This device is simple, efficient, and convenient to maintain.

[0017] 2. In the present utility model, by setting a collecting part, the second assembly body is divided into upper and lower areas by a hollow partition board, and a non-woven fabric is laid on the upper part of the hollow partition board to prevent dust from being discharged, thereby blocking the dust in the collection area. And the non-woven fabric is initially positioned by a positioning plate, and then through the placement of the positioning frame and the pressing action of the guiding frame on the positioning frame, the non-woven fabric is stably laid in the collection area, realizing stable placement and blocking the discharge of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0020] Figure 3 is a three-dimensional structural schematic diagram of the cleaning device of the present utility model;

[0021] Figure 4 is a sectional structural schematic diagram of the cleaning device of the present utility model;

[0022] Figure 5 is a three-dimensional structural schematic diagram of the collecting part of the present utility model;

[0023] Figure 6 It is a schematic diagram of the internal structure of the collecting part of the present utility model.

[0024] Among them: storage bin - 1, lower - layer conveying pipe - 2, vertical auger elevator - 3, upper - layer conveying pipe - 4, support frame - 5, cleaning device - 6, assembly - 61, support shaft - 62, rotating frame - 63, ventilation plate - 64, blanking pipe - 65, solenoid valve - 66, fan - 67, guiding frame - 68, collecting part - 69, second assembly - 691, collecting area - 692, exhaust area - 693, hollow partition - 694, positioning plate - 695, non - woven fabric - 696, positioning frame - 697. Specific embodiments

[0025] In order to further explain the technical solution of the present utility model, it will be elaborated in detail through specific embodiments below.

[0026] Please refer to Figure 1-2 In the embodiments of the present utility model:

[0027] A feeding mechanism for lunch - box injection molding includes a storage bin 1, a lower - layer conveying pipe 2, a vertical auger elevator 3, an upper - layer conveying pipe 4, and a support frame 5. The right end of the storage bin 1 is provided with the lower - layer conveying pipe 2, the right end of the lower - layer conveying pipe 2 is communicated with the vertical auger elevator 3, the right end of the vertical auger elevator 3 is provided with the upper - layer conveying pipe 4, and the left end of the support frame 5 is fixed to the storage bin 1.

[0028] Refer to Figure 3-4 In the embodiments of the present utility model:

[0029] The bottom end of the cleaning device 6 is fixed to the support frame 5, and the top end thereof is connected to the upper conveying pipe 4. The cleaning device 6 comprises an assembly 61, a support shaft 62, a rotating frame 63, a ventilation plate 64, a feed pipe 65, a solenoid valve 66, a fan 67, a guide frame 68, and a collecting member 69. The bottom end of the assembly 61 is fixed to the support frame 5, and the top end thereof is connected to the upper conveying pipe 4. The middle part of the assembly 61 is fixed with a support shaft 62, and the outer side of the support shaft 62 is rotatably connected with the rotating frame 63. The left end of the assembly 61 is fixed with a ventilation plate 64, and a feed pipe 65 is provided at the bottom end thereof. A solenoid valve 66 is installed in the middle part of the feed pipe 65, and the fan 67 is installed at the right end of the assembly 61. The left end of the guide frame 68 is bolted to the assembly 61, and The bottom end thereof is threadedly connected with a collecting piece 69, the bottom end of the guide frame 68 is cylindrical, and a thread is provided on the outside thereof, which facilitates the threaded installation of the collecting piece 69 on the bottom end of the guide frame 68, thereby realizing quick connection and disassembly, and facilitating the cleaning of the collecting area 692 in the collecting piece 69, thereby improving the convenience of cleaning the collected dust. The fan blades of the rotating frame 63 are mesh-shaped, which is convenient for receiving and stirring the granular raw materials, so that the dust contaminated on the surface is adsorbed from the mesh holes to the collecting area 692. This structure effectively avoids a large amount of dust adhering to the rotating frame 63, and facilitates the rapid cleaning of the dust. Two groups of ventilation plates 64 are provided, which are distributed on the left and right sides, both of which facilitate air circulation, and the ventilation plates 64 provided on the right end can also prevent the raw material particles from being adsorbed to the collecting area 69.

[0030] refer to Figure 5-6 , in the embodiment of the utility model:

[0031] The collecting member 69 includes a second assembly 691, a collecting area 692, an exhaust area 693, a hollow partition 694, a positioning plate 695, a non-woven fabric 696, and a positioning frame 697. The top of the second assembly 691 is threadedly connected to the guide frame 68. A hollow partition 694 is fixed inside the second assembly 691. The upper end of the hollow partition 694 is provided with a collecting area 692, and the lower end thereof is provided with an exhaust area 693. A positioning plate 695 is fixed inside the collecting area 692. The non-woven fabric 696 is in contact with the hollow partition 694 and the positioning plate 695, respectively. The positioning frame 697 is provided with a plurality of non-woven fabrics. The bottom end of 7 is in contact with the non-woven fabric 696, and the top end thereof is in contact with the guide frame 68. The upper and lower ends of the positioning frame 697 are hollowed out to facilitate the circulation of air, and the bottom end of the positioning frame 697 squeezes the non-woven fabric 696 to position the non-woven fabric 696, so that the non-woven fabric can stably isolate dust, block dust inside the collection area 692, and discharge clean air from the exhaust area 693. The cross-section of the second assembly 691 is in an "L" shape, which is convenient for discharging air upwards and diffusing the air, thereby avoiding the rapid and concentrated spraying of the extracted air to the bottom.

[0032] refer to Figures 1-6, during use, by starting the vertical auger elevator 3, the granular raw materials in the storage bin 1 are conveyed upward and introduced into the assembly 61 through the upper conveying pipe 4 for temporary storage;

[0033] When the granular material enters the assembly 61, by starting the fan 67, air is inhaled to adsorb the dust on the surface of the granules. And through the rapid circulation of the air, the rotating frame 63 is driven to rotate, stirring and dispersing the material, so as to facilitate the full cleaning of the granules and adsorb the dust on their surfaces. The adsorbed air enters the interior of the collection area 692 along the guide frame 68. When the air passes through the non-woven fabric 696, the dust particles are blocked, filtering the air. The clean air then passes through the non-woven fabric 696 and the hollow partition 694 into the exhaust area 693 and is discharged upward into the production environment;

[0034] When feeding is required, open the solenoid valve 66 to discharge the material from the feeding pipe 65;

[0035] When it is necessary to clean the dust collected inside the collection area 693, unscrew the collection part 69, take out the positioning frame 697 placed inside, and then directly pull out the non-woven fabric 696 for replacement. At the same time, flush the inner wall of the collection area 692 with clean water, and then put a new non-woven fabric 696 back in. When putting it in, embed the edge of the non-woven fabric 696 into the inside of the positioning plate 695, and then put in the positioning frame 691. Among them, when the collection part 69 is installed at the bottom end of the guide frame 68, the positioning frame 691 abuts against the bottom end of the guide frame 68, thus realizing the stable placement of the positioning frame 691;

[0036] When maintaining the fan 67, unscrew the bolts of the guide frame 68 and move it to the right to expose the fan 67 inside, then the bolts of the fan 67 can be unscrewed for maintenance.

[0037] The control mode of the present utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the art. And the present utility model is mainly used to protect mechanical devices, so the control mode and wiring layout of the present utility model will not be explained in detail.

[0038] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The power supply is also common knowledge in the art. And the present utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0039] The above are only the preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A feeding mechanism for lunch box injection molding, comprising a storage bin (1), a lower conveying pipe (2), a vertical auger elevator (3), an upper conveying pipe (4), and a support frame (5), wherein the right end of the storage bin (1) is provided with a lower conveying pipe (2), the right end of the lower conveying pipe (2) is connected to the vertical auger elevator (3), the right end of the vertical auger elevator (3) is provided with an upper conveying pipe (4), and the left end of the support frame (5) is fixed to the storage bin (1); Features: The cleaning device (6) further comprises a cleaning device (6), wherein the bottom end of the cleaning device (6) is fixed to the support frame (5), and the top end thereof is communicated with the upper conveying pipe (4). The cleaning device (6) comprises an assembly (61), a support shaft (62), a rotating frame (63), a ventilation plate (64), a feed pipe (65), a solenoid valve (66), a fan (67), a guide frame (68), and a collecting member (69). The bottom end of the assembly (61) is fixed to the support frame (5), and the top end thereof is communicated with the upper conveying pipe (4). A support shaft (62) is fixed in the middle of the assembly (61), and a rotating frame (63) is rotatably connected to the outer side of the support shaft (62). A ventilation plate (64) is fixed to the left end of the assembly (61), and a feed pipe (65) is provided at the bottom end thereof. A solenoid valve (66) is installed in the middle of the feed pipe (65). The fan (67) is installed at the right end of the assembly (61). The left end of the guide frame (68) is bolted to the assembly (61), and a collecting piece (69) is threadedly connected to the bottom end thereof.

2. A feeding mechanism for lunch box injection molding according to claim 1, characterized in that: The collecting member (69) comprises a second assembly (691), a collecting area (692), an exhaust area (693), a hollow partition (694), a positioning plate (695), a non-woven fabric (696), and a positioning frame (697). The top end of the second assembly (691) is threadedly connected to the guide frame (68). A hollow partition (694) is fixed inside the second assembly (691). The upper end of the hollow partition (694) is provided with a collecting area (692), and the lower end thereof is provided with an exhaust area (693). A positioning plate (695) is fixed inside the collecting area (692). The non-woven fabric (696) is in contact with the hollow partition (694) and the positioning plate (695), respectively. The bottom end of the positioning frame (697) is in contact with the non-woven fabric (696), and the top end thereof is in contact with the guide frame (68).

3. A feeding mechanism for lunch box injection molding according to claim 2, characterized in that: The upper and lower ends of the positioning frame (697) are both hollow.

4. A feeding mechanism for lunch box injection molding according to claim 2, characterized in that: The cross section of the second assembly (691) is in an "L" shape.

5. The feeding mechanism for lunch box injection molding according to claim 1, characterized in that: The bottom end of the guide frame (68) is cylindrical and has threads on its exterior.

6. A feeding mechanism for lunch box injection molding according to claim 1, characterized in that: The fan blades of the rotating frame (63) are in a mesh shape.

7. The feeding mechanism for lunch box injection molding according to claim 1, characterized in that: The ventilation plates (64) are provided in two groups, distributed on the left and right.

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