Plastic storage box forming mechanism

Abstract

The utility model relates to the field of forming mechanisms, in particular to a plastic storage box forming mechanism which comprises an injection molding machine, a machine frame, a cold air channel, a material distributing transmission belt and a plastic storage box polishing assembly. The injection molding machine is mounted at the upper end of the inner side of the rack; a cold air channel for quickly cooling and demolding the molded plastic storage box is mounted at the upper end of the injection molding machine opening and closing area on the inner side of the rack; according to the utility model, external air is guided in through the cold air channel, filtered and refrigerated and then is uniformly conveyed downwards, so that not only is the molded plastic storage box quickly cooled, but also the demolding speed of the plastic storage box can be accelerated; the plastic storage boxes at the upper end of the material distributing transmission belt are distributed through forward and reverse rotation of the material distributing transmission belt according to a preset program, the plastic storage box processing speed is increased, the four faces of each plastic storage box are finely ground through the plastic storage box grinding assembly in the discharging process, surface water gap remaining materials and burrs are removed, and the plastic storage box processing efficiency is improved. And the surface of the plastic box can be smoother and more uniform.

Description

Technical Field

[0001] The utility model relates to the field of molding mechanisms, in particular to a molding mechanism for a plastic storage box. Background Art

[0002] Plastic storage boxes are widely used in daily life. They are mainly used to store, organize and protect various items. Commonly used plastic raw materials include polypropylene (PP), polyethylene (PE), polycarbonate (PC), etc. The main manufacturing process of plastic storage boxes is usually injection molding, which injects heated molten plastic into a mold of a specific shape through a mold and takes it out after cooling.

[0003] However, the plastic storage boxes produced by the existing injection molding machine will have a sprue residue, which needs to be processed in subsequent steps. Moreover, the production efficiency of the existing injection molding machine is very high. Relying on only one processing channel is far from enough. It is easy for the feeding channel to be blocked and the sprue residue to be processed in time.

[0004] Therefore, in order to solve the problem that the discharge channel of the above-mentioned injection molding machine is easily blocked and the residual material at the sprue is not handled in time after the plastic storage box is molded, a plastic storage box molding mechanism can be designed. Utility Model Content

[0005] In order to overcome the problem that the material discharge channel of the injection molding machine is easily blocked and the residual material at the nozzle is not handled in time after the plastic storage box is molded.

[0006] The technical solution of the utility model is: a plastic storage box forming mechanism, including an injection molding machine, a frame, a cold air channel, a material dividing transmission belt, a first unloading transmission belt, a second unloading transmission belt and a plastic storage box polishing assembly; the injection molding machine is installed on the inner side of the frame near the upper end; a cold air channel for quickly cooling and demolding the plastic storage box after molding is installed on the upper end of the injection molding machine opening and closing area inside the frame; a material dividing transmission belt for left and right sorting of the plastic storage box after molding is installed in the middle position inside the frame; a first unloading transmission belt and a second unloading transmission belt are respectively installed on the lower end inside the frame; the first unloading transmission belt is installed on the lower end of the frame; the first unloading transmission belt is installed on the lower end of the frame; the first unloading transmission belt is installed on the lower end of the frame; the first unloading transmission belt is installed on the lower end of the frame; the first unloading transmission belt is installed on the lower end of the frame; the first unloading transmission belt is installed on the lower end of the frame; the first unloading transmission belt is installed on the upper end of the injection molding machine opening and closing area inside ... The upper ends of the belt and the second unloading transmission belt are both provided with a plastic storage box grinding assembly for removing excess material on the surface of the plastic storage box; the plastic storage box grinding assembly includes a pushing cylinder, a grinding block, a fixed frame, a lifting cylinder, a rotating motor, a pressure plate and a push plate; the upper end of the fixed frame is installed with a lifting cylinder; the lower end of the lifting cylinder piston rod is installed with a rotating motor; the lower end of the rotating motor is fixedly connected to a pressure plate; a pushing cylinder is installed on the outside of the frame in the first unloading transmission belt and the second unloading transmission belt area; a push plate is installed on the inner side of the pushing cylinder piston rod; a grinding block is fixedly connected to the inner side of the frame in the first unloading transmission belt and the second unloading transmission belt area.

[0007] Preferably, in the first step, the hot melt plastic is injected into a mold of a specific shape through the mold in the injection molding machine. After the mold of the injection molding machine is opened, the cold air channel introduces the outside air into the filtered and refrigerated air and then evenly transports it downward, which not only allows the plastic storage box to cool quickly after molding, but also promotes the demolding speed of the plastic storage box.

[0008] In the second step, the plastic storage boxes fall onto the material distribution conveyor belt, which rotates forward and reverse according to a predetermined program, and distributes the plastic storage boxes on the upper end of the material distribution conveyor belt to the first unloading conveyor belt and the second unloading conveyor belt respectively, thereby improving the processing speed of the plastic storage boxes;

[0009] In the third step, when the plastic storage box moves with the transmission belt, the cylinder first pushes the push plate to push the plastic storage box backward, and the end of the plastic storage box away from the push plate contacts the polishing block for fine polishing. Then, it enters the next push cylinder to drive the push plate area, and the push plate pushes the plastic storage box forward, and the end of the plastic storage box away from the push plate contacts the polishing block, so that both sides of the plastic storage box are polished;

[0010] In the fourth step, when passing the lower end of the fixed frame, the lifting cylinder drives the rotating motor to move downward, pressing the plastic storage box and driving it to rotate, turning the front and back of the plastic storage box into left and right sides, releasing the pressure, and repeating the above third step to complete the polishing of the remaining two sides while moving with the rotating belt.

[0011] Preferably, the cold air channel adopts a wind collection design that is wide at the top and narrow at the bottom.

[0012] Preferably, the grinding block and the push plate have the same length and width; the positions of the grinding block and the push plate match one by one; the positions of the grinding block and the push plate are opposite to those of the adjacent grinding blocks and push plates; first, the air cylinder is pushed to drive the push plate to push the plastic storage box backward, and the plastic storage box contacts the grinding block away from the end of the push plate for fine grinding, and then, enters the next pushing cylinder to drive the push plate area, and the push plate pushes the plastic storage box forward, and the plastic storage box contacts the grinding block away from the end of the push plate, so that both sides of the plastic storage box are polished.

[0013] Preferably, an air cooler is provided at the upper end of the cold air channel for introducing outside air for filtration and refrigeration; the air cooler and the cold air channel are connected by an input pipe; after the injection molding machine mold is opened, the cold air channel introduces outside air for filtration and refrigeration and then transports it downward evenly, which not only allows the plastic storage box to cool quickly after molding, but also promotes the demolding speed of the plastic storage box.

[0014] Preferably, the front and rear ends of the cold air channel are fixedly connected with control blocks; the rear end of the control block is installed with a threaded rod and a threaded sleeve located on the rack equipment frame; the left end of the threaded rod and the threaded sleeve is installed with a drive motor; the drive motor controls the threaded rod and the threaded sleeve to start running, and the cold air channel can be linked to the control block to perform reciprocating motion, so that the cold air radiation area output by the cold air channel is wider and the plastic storage box is cooled faster.

[0015] Preferably, a slide bar and a slide sleeve are installed at the front end of another control block and are located inside the rack; the slide bar and the slide sleeve are provided at the front end of the cold air channel to improve the stability of the cold air channel during movement.

[0016] Beneficial effects of the utility model:

[0017] The utility model introduces external air into the cold air channel, filters and refrigerates it, and then evenly transports it downward, which not only allows the plastic storage box to cool down quickly after being formed, but also promotes the demoulding speed of the plastic storage box; the material distribution transmission belt rotates forwards and backwards according to a predetermined program, and the plastic storage boxes at the upper end of the material distribution transmission belt are respectively distributed to the first material discharge transmission belt and the second material discharge transmission belt, thereby improving the processing speed of the plastic storage box and preventing the material discharge channel from being blocked; the plastic storage box polishing component is used to finely polish the four sides of the plastic storage box during the material discharge process, and removes surface water outlet excess material and burrs, so that the surface of the plastic box can be made smoother and more uniform, thereby improving the overall production precision of the plastic storage box and product consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the forming mechanism of the present invention;

[0019] Figure 2 Shown is a partial cross-sectional structural schematic diagram of the forming mechanism of the present utility model;

[0020] Figure 3 Shown is a schematic diagram of the structure of the plastic storage box polishing component of the molding mechanism of the present invention;

[0021] Figure 4 Shown is a schematic diagram of the cold air channel area structure of the molding mechanism of the present invention.

[0022] Explanation of the accompanying symbols: 1. Injection molding machine; 2. Frame; 3. Cold air duct; 4. Material distribution transmission belt; 5. First unloading transmission belt; 6. Second unloading transmission belt; 701. Push cylinder; 702. Grinding block; 703. Fixed frame; 704. Lifting cylinder; 705. Rotating motor; 706. Pressure plate; 707. Push plate; 8. Air cooler; 9. Input pipe; 10. Drive motor; 11. Threaded rod and threaded sleeve; 12. Control block; 13. Sliding rod and sliding sleeve. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1-4 The utility model provides an embodiment: a plastic storage box molding mechanism, including an injection molding machine 1, a frame 2, a cold air duct 3, a material distribution transmission belt 4, a first material discharge transmission belt 5, a second material discharge transmission belt 6 and a plastic storage box grinding assembly; the injection molding machine 1 is installed on the inner side of the frame 2 near the upper end; the upper end of the opening and closing area of ​​the injection molding machine 1 inside the frame 2 is installed with a cold air duct 3 for quickly cooling and demolding the plastic storage box after molding; the middle position of the inner side of the frame 2 is installed with a material distribution transmission belt 4 for sorting the plastic storage box left and right after molding Belt 4; the inner side of the frame 2 is respectively installed with a left-right symmetrical first unloading transmission belt 5 and a second unloading transmission belt 6; the upper ends of the first unloading transmission belt 5 and the second unloading transmission belt 6 are provided with a plastic storage box grinding assembly for removing excess material from the surface of the plastic storage box; the plastic storage box grinding assembly includes a pushing cylinder 701, a grinding block 702, a fixing frame 703, a lifting cylinder 704, a rotating motor 705, a pressure plate 706 and a push plate 707; the upper end of the fixing frame 703 is installed with a lifting cylinder 704; the lifting cylinder 704 A rotating motor 705 is installed at the lower end of the piston rod; a pressure plate 706 is fixedly connected to the lower end of the rotating motor 705; a pushing cylinder 701 is installed on the outer side of the frame 2 in the area of ​​the first unloading transmission belt 5 and the second unloading transmission belt 6; a push plate 707 is installed on the inner side of the piston rod of the pushing cylinder 701; a grinding block 702 is fixedly connected to the inner side of the frame 2 in the area of ​​the first unloading transmission belt 5 and the second unloading transmission belt 6, and the cold air channel 3 adopts a wind collection design that is wide at the top and narrow at the bottom, and the grinding block 702 and the push plate 707 have the same length and width; the grinding block 702 and the push plate 70 7 positions are matched one by one; the grinding block 702 and the push plate 707 are in opposite positions to the adjacent grinding block 702 and the push plate 707; first, the cylinder 701 is pushed to drive the push plate 707 to push the plastic storage box backward, and the end of the plastic storage box away from the push plate 707 contacts the grinding block 702 for fine grinding, and then, the next area is pushed by the cylinder 701 to drive the push plate 707, and the push plate 707 pushes the plastic storage box forward, and the end of the plastic storage box away from the push plate 707 contacts the grinding block 702, so that the two surfaces of the plastic storage box are polished.

[0025] See also Figure 2 In this embodiment, an air cooler 8 is provided at the upper end of the cold air channel 3 for introducing outside air for filtration and refrigeration; the air cooler 8 and the cold air channel 3 are connected through an input pipe 9; after the mold of the injection molding machine 1 is opened, the cold air channel 3 introduces outside air for filtration and refrigeration and then transports it downward evenly, which not only allows the plastic storage box to cool quickly after molding, but also promotes the demolding speed of the plastic storage box.

[0026] See also Figure 4In this embodiment, the front and rear ends of the cold air channel 3 are fixedly connected with a control block 12; the rear end of the control block 12 is installed with a threaded rod and a threaded sleeve 11 located on the equipment rack of the rack 2; the left end of the threaded rod and the threaded sleeve 11 is installed with a driving motor 10; the driving motor 10 controls the threaded rod and the threaded sleeve 11 to start running, and the cold air channel 3 can be linked to the control block 12 to perform reciprocating motion, so that the cold air radiation area output by the cold air channel 3 is wider, and the plastic storage box is cooled faster. The front end of the other control block 12 is installed with a sliding rod and a sliding sleeve 13 located on the inner side of the rack 2; the sliding rod and the sliding sleeve 13 are provided at the front end of the cold air channel 3 to improve the stability of the cold air channel 3 during movement.

[0027] During operation, in the first step, the injection molding machine 1 injects the hot melt plastic into a mold of a specific shape through the mold. After the mold of the injection molding machine 1 is opened, the drive motor 10 controls the threaded rod and the threaded sleeve 11 to start running. The control block 12 can be used to link the cold air channel 3 to reciprocate, so that the cold air radiation area output by the cold air channel 3 is wider and the plastic storage box is cooled faster.

[0028] In the second step, the plastic storage boxes fall onto the material distribution conveyor belt 4, which rotates forward and backward according to a predetermined program, and distributes the plastic storage boxes on the upper end of the material distribution conveyor belt 4 to the first unloading conveyor belt 5 and the second unloading conveyor belt 6, thereby improving the processing speed of the plastic storage boxes.

[0029] In the third step, when the plastic storage box moves with the transmission belt, the cylinder 701 is first pushed to drive the push plate 707 to push the plastic storage box backward, and the end of the plastic storage box away from the push plate 707 contacts the polishing block 702 for fine polishing. Then, the next push cylinder 701 drives the push plate 707, and the push plate 707 pushes the plastic storage box forward, and the end of the plastic storage box away from the push plate 707 contacts the polishing block 702, so that both sides of the plastic storage box are polished.

[0030] In the fourth step, when passing the lower end of the fixed frame 703, the lifting cylinder 704 drives the pressure plate 706 driven by the rotating motor 705 to move downward, pressing the plastic storage box and driving it to rotate, turning the front and back of the plastic storage box into left and right sides, releasing the pressure, and repeating the above third step to complete the polishing of the remaining two sides while moving with the rotating belt.

[0031] Through the above steps, the outside air is introduced into the cold air channel 3 for filtration and refrigeration, and then transported downward evenly, which not only allows the plastic storage box to cool quickly after molding, but also promotes the demolding speed of the plastic storage box; the material distribution conveyor belt 4 is rotated forward and backward according to a predetermined program, and the plastic storage boxes on the upper end of the material distribution conveyor belt 4 are distributed to the first unloading conveyor belt 5 and the second unloading conveyor belt 6 respectively, which improves the processing speed of the plastic storage box and prevents the unloading channel from being blocked. The plastic storage box polishing component is used to finely polish the four sides of the plastic storage box during the unloading process to remove the surface water outlet excess material and burrs, so that the surface of the plastic box can be made smoother and more uniform, thereby improving the overall production precision of the plastic storage box and the consistency of the product.

Claims

1. A plastic storage box molding mechanism, comprising an injection molding machine (1); characterized in that: The invention also comprises a frame (2), a cold air channel (3), a material dividing transmission belt (4), a first material discharging transmission belt (5), a second material discharging transmission belt (6) and a plastic storage box grinding component; the injection molding machine (1) is installed at the upper end of the inner side of the frame (2); a cold air channel (3) is installed at the upper end of the opening and closing area of ​​the injection molding machine (1) inside the frame (2) for quickly cooling and demoulding the plastic storage box after molding; a material dividing transmission belt (4) is installed at the middle position inside the frame (2) for sorting the plastic storage box left and right after molding; a first material discharging transmission belt (5) and a second material discharging transmission belt (6) are respectively installed at the lower end of the inner side of the frame (2); the upper ends of the first material discharging transmission belt (5) and the second material discharging transmission belt (6) are both provided with a plastic storage box grinding component for removing the residual material on the surface of the plastic storage box Components; The plastic storage box polishing component comprises a pushing cylinder (701), a polishing block (702), a fixing frame (703), a lifting cylinder (704), a rotating motor (705), a pressure plate (706) and a push plate (707); the lifting cylinder (704) is installed on the upper end of the fixing frame (703); the rotating motor (705) is installed on the lower end of the piston rod of the lifting cylinder (704); the pressure plate (706) is fixedly connected to the lower end of the rotating motor (705); the pushing cylinder (701) is installed on the outer side of the frame (2) in the area of ​​the first unloading transmission belt (5) and the second unloading transmission belt (6); the push plate (707) is installed on the inner side of the piston rod of the pushing cylinder (701); the polishing block (702) is fixedly connected to the inner side of the frame (2) in the area of ​​the first unloading transmission belt (5) and the second unloading transmission belt (6).

2. The plastic storage box forming mechanism according to claim 1, characterized in that: The cold air channel (3) adopts a wind collection design that is wide at the top and narrow at the bottom.

3. The plastic storage box forming mechanism according to claim 1, characterized in that: The grinding block (702) and the push plate (707) have the same length and width; the grinding block (702) and the push plate (707) are matched in position one to one; the grinding block (702) and the push plate (707) are in opposite positions to the adjacent grinding block (702) and the push plate (707).

4. The plastic storage box forming mechanism according to claim 1, characterized in that: An air cooler (8) for introducing outside air into the cold air passage (3) for filtration and refrigeration is provided at the upper end of the cold air passage (3); the air cooler (8) and the cold air passage (3) are connected via an input pipe (9).

5. The plastic storage box forming mechanism according to claim 1, characterized in that: The front and rear ends of the cold air channel (3) are fixedly connected to a control block (12); a threaded rod and a threaded sleeve (11) located on the equipment rack of the rack (2) are installed at the rear end of the control block (12); and a drive motor (10) is installed at the left end of the threaded rod and the threaded sleeve (11).

6. The plastic storage box forming mechanism according to claim 5, characterized in that: The front end of the other control block (12) is provided with a slide rod and a slide sleeve (13) located inside the frame (2).

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