Automatic feeding device of plastic vacuum forming machine

Abstract

The utility model relates to the field of feeding of plastic vacuum forming machines, in particular to an automatic feeding device of a plastic vacuum forming machine, which comprises a ladder frame, a gear motor, a bearing seat, a chain wheel, a chain, a barb and the like. The ladder frame is provided with two side trusses, limiting grooves are formed in the two sides of the rear side of the top in the ladder frame, a gear motor is arranged on one side of the rear portion of the ladder frame, a bearing seat is arranged on the portion, located on the outer side of an output shaft of the gear motor, of the rear portion in the ladder frame, and chain wheels are rotationally arranged on the two sides of the upper portion and the lower portion in the ladder frame. The outer sides of the chain wheels on the same side are rotationally meshed with chains, and barbs are arranged on the outer side of one outer chain plate on the front portions of the chains on the two sides. The chain, the barb and the sliding block are matched with the gear motor, the winding drum is automatically lifted, the feeding operation process is simplified, and manual intervention is reduced. The limiting piece and the positioning screw can be finely adjusted according to the actual size of the winding drum, it is guaranteed that the winding drum cannot transversely deviate in the lifting process, and the winding drum positioning accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of feeding in blister packaging machines, and more particularly to an automatic feeding device for blister packaging machines. Background Technology

[0002] A thermoforming machine, also known as a vacuum forming machine, is a type of plastic processing equipment widely used in industrial manufacturing, particularly in the production of packaging, automotive interior parts, and medical device components.

[0003] The common feeding method for vacuum forming machines generally consists of components such as a carrier lifting platform, a lifting frame, and limiting devices. First, the carrier lifting platform needs to be operated to fix the lifting frame on top of it. Then, the plastic film roll is placed above the lifting frame and secured with the limiting devices. Finally, the lifting frame is operated to lift the plastic film roll onto the mounting frame. This feeding method requires multiple manual operations, including fixing the lifting frame, placing the roll, and securing it with limiting devices. The operation is relatively complex, resulting in a long feeding time and affecting subsequent processing efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an automatic feeding device for a blister packaging machine that is simple to operate.

[0005] To solve the aforementioned technical problems, this utility model provides an automatic feeding device for a vacuum forming machine, comprising a ladder frame, a geared motor, bearing seats, sprockets, chains, hooks, sliders, rollers, rubber bearings, limiting components, and positioning screws. The ladder frame has two side trusses, and limiting grooves are provided on both sides of the rear top of the ladder frame. A geared motor is installed on one side of the rear of the ladder frame, and a bearing seat is installed on the rear part of the ladder frame outside the output shaft of the geared motor. Sprockets are rotatably mounted on both sides of the upper and lower inner parts of the ladder frame. The output shaft of the geared motor... The output shaft is connected to one of its sprockets. Both sprockets on the same side have chains that rotate and mesh with each other. Both outer chain plates at the front of the chains on both sides have barbs. Both sides of the barbs have sliders that are slidably connected to the ladder frame. Rollers are placed in the two limiting grooves of the ladder frame. Both ends of the rollers are equipped with rubber bearings. The rollers are located close to the rubber bearings on both sides and are slidably equipped with limiting components. Several symmetrically distributed positioning screws are threaded through the limiting components. The ends of each positioning screw abut against the outside of the roller.

[0006] Preferably, the movement trajectory of the slider is guided by the upper frame of the ladder.

[0007] Preferably, the system also includes a pressurization box, a telescopic rod, a spring, a piston rod, an air pipe, a sealing box, a solenoid valve, and a load-bearing wheel. The pressurization box is located at the rear bottom of the ladder frame, and a telescopic rod is hinged to the top of the pressurization box. A spring is located at the rear of the telescopic rod, and a piston rod is located at the bottom of the spring. The top of the piston rod is connected to the bottom of the spring. Air pipes are connected to both sides of the pressurization box. Sealing boxes are symmetrically located on both sides of the lower part of the ladder frame, and the air pipes on both sides are connected to the sealing boxes below. A solenoid valve is located at the top of each sealing box, and a load-bearing wheel is slidably installed inside each sealing box.

[0008] Preferably, it also includes a handle, with a handle provided at the telescopic end of the telescopic rod.

[0009] Preferably, the bottom of the ladder frame is higher than the bottom of each load-bearing wheel.

[0010] Preferably, when the telescopic rod rotates and descends, the spring on the rear side is compressed and deformed, which drives the piston rod below to slide in the pressurization box, creating a negative pressure in the pressurization box and entering the air pipes on both sides, and finally entering each sealed box, thereby causing the bearing wheel to slide downward under pressure.

[0011] Beneficial effects: 1. The automatic lifting of the drum is achieved by using a chain, hook, and slider in conjunction with a speed reduction motor, which simplifies the feeding process and reduces manual intervention; the limit components and positioning screws can be finely adjusted according to the actual size of the drum to ensure that the drum does not shift laterally during the lifting process, thus improving the positioning accuracy of the drum.

[0012] 2. The pressure box system creates negative pressure, causing the load-bearing wheels inside the sealed box to slide upwards, helping to support the weight of the drum and reducing the load on the chain system. This ensures the stability of the drum during the lifting process and reduces shaking or instability caused by heavy loads. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the pressure box, telescopic rod, and handle of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the spring, piston rod, and air tube components of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the sealing box, solenoid valve, and bearing wheel.

[0017] The markings in the attached diagram are as follows: 1-ladder frame, 2-gear motor, 21-bearing seat, 3-sprocket, 4-chain, 5-barb, 51-slider, 6-roller, 7-rubber bearing, 8-limiting component, 9-positioning screw, 10-pressure box, 11-telescopic rod, 12-handle, 13-spring, 14-piston rod, 15-air pipe, 16-sealing box, 17-solenoid valve, 18-load-bearing wheel. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Example: An automatic feeding device for a vacuum forming machine, such as Figures 1-4 As shown, the system includes a ladder frame 1, a geared motor 2, a bearing housing 21, a sprocket 3, a chain 4, a hook 5, a slider 51, a roller 6, a rubber bearing 7, a limiting component 8, and a positioning screw 9. The ladder frame 1 has two side trusses. Limiting grooves are provided on both sides of the rear top of the ladder frame 1. The bottom of the ladder frame 1 is higher than the bottom of each bearing wheel 18. A geared motor 2 is installed on one side of the rear of the ladder frame 1. The geared motor 2 provides power to drive the sprocket 3. A bearing housing 21 is installed on the outside of the output shaft of the geared motor 2 in the rear of the ladder frame 1. The bearing housing 21 fixes the output shaft of the geared motor 2 to ensure its stable operation. Sprockets 3 are rotatably installed on both sides of the upper and lower inner parts of the ladder frame 1. The output shaft of the geared motor 2 is connected to one of its sprockets 3. The sprocket 3 transmits the power of the motor to the chain 4. The chain 4 is rotatably engaged on the outside of the sprocket 3 on the same side. The chain 4 transmits power and achieves up and down circulation through engagement with the sprocket 3. The front of the chain 4 on both sides... One of the outer chain plates is equipped with barbs 5 on the outer side. On the opposite side of each barb 5, there is a slider 51 that is slidably connected to the ladder frame 1. The slider 51 moves with the chain 4 and is used to lift or lower the material together with the barbs 5. The movement trajectory of the slider 51 is guided by the upper frame of the ladder frame 1. Rollers 6 are placed in the two limiting slots of the ladder frame 1. The rollers 6 are used to carry the material. Rubber bearings 7 are provided on both ends of the rollers 6. The rubber bearings 7 reduce the friction between the rollers 6 and the limiting parts 8 and protect the rollers 6. The rollers 6 are located close to the rubber bearings 7 on both sides and are slidably equipped with limiting parts 8. The limiting parts 8 restrict the position of the inner cylinder of the material and prevent the material from shifting during transportation. Several symmetrically distributed positioning screws 9 are threaded through the limiting parts 8. The ends of each positioning screw 9 abut against the outside of the rollers 6. The positioning screws 9 adjust the position of the limiting parts 8 to ensure the stability of materials of different sizes.

[0020] like Figures 2-4As shown, it also includes a pressure box 10, a telescopic rod 11, a spring 13, a piston rod 14, an air pipe 15, a sealing box 16, a solenoid valve 17, and a bearing wheel 18. The pressure box 10 is located at the rear bottom of the ladder frame 1. The top of the pressure box 10 is hinged to the telescopic rod 11. The telescopic rod 11, together with the pressure box 10 and the sealing box 16, enables the bearing wheel 18 to move up and down. A spring 13 is located at the rear of the telescopic rod 11. The spring 13 generates a pressure difference through deformation, helping to create negative pressure. A piston rod 14 is located at the bottom of the spring 13. The piston rod 14 slides within the pressure box 10 as the telescopic rod 11 moves. The top of the piston rod 14 is connected to the bottom of the spring 13. Air pipes 15 are connected to both sides of the pressure box 10. Pressure changes are transmitted between the 0 and the sealing box 16. The sealing boxes 16 are symmetrically arranged on both sides of the lower part of the ladder frame 1. The height of the bearing wheel 18 is adjusted by the internal pressure change of the sealing box 16. The air pipes 15 on both sides are connected to the sealing box 16 below. Each sealing box 16 is equipped with a solenoid valve 17 at the top. The solenoid valve 17 is used to control the opening and closing of the air pipe 15 and adjust the pressure of the sealing box 16. The bearing wheel 18 is slidably arranged inside each sealing box 16. When the telescopic rod 11 rotates and descends, the spring 13 on the rear side is deformed by pressure and drives the piston rod 14 below to slide in the pressure box, so that a negative pressure is formed in the pressure box 10 and enters the air pipes 15 on both sides, and finally enters each sealing box 16, so that the bearing wheel 18 is pressed down and slides.

[0021] like Figure 2 As shown, it also includes a handle 12. The telescopic end of the telescopic rod 11 is provided with a handle 12, which allows for manual adjustment of the position of the telescopic rod 11 to assist in the pressurization operation.

[0022] In use, the operator matches the roll of plastic film to the inner diameter of the roller 6, ensuring the roll can be placed stably on the roller 6. After placing the roll, the two ends of the roller 6 are placed on the hooks 5 of one of the outer chain shells of the chain 4. The operator adjusts the position of the limiting piece 8 and uses the positioning screws 9 to fix it to the roller 6, preventing lateral displacement of the roll during subsequent lifting. The design of the positioning screws 9 allows the operator to fine-tune according to the specific dimensions of the roll to ensure optimal fixing. Once the plastic film roll is initially fixed, the reduction motor is started. 2. The geared motor 2 is located on one side of the rear of the ladder frame 1. Its output shaft is connected to a sprocket 3 in the upper part of the ladder frame 1. As the motor starts, the sprocket 3 begins to rotate, and drives another sprocket 3 to rotate synchronously through the chain 4. The function of the hook 5 is to hook the edge of the drum during the lifting process, ensuring that the drum is lifted as the chain 4 rises. As the chain 4 rotates, the hook 5 gradually lifts the drum. The slider 51 slides along the upper frame of the ladder frame 1, guiding and supporting the drum's ascent. To reduce the burden on the chain 4 when lifting the drum and to ensure the stability of the lifting process, when the telescopic rod 1... 1. During the rotational descent, the rear spring 13 is compressed and deformed, causing the lower piston rod 14 to slide within the pressure chamber 10, thus creating a negative pressure within the pressure chamber 10. This negative pressure is transmitted through the air pipes 15 connected to both sides of the pressure chamber 10 to the sealing chambers 16 located on both sides of the lower part of the ladder frame 1. When the negative pressure enters the sealing chamber 16, it causes the bearing wheel 18 inside the sealing chamber 16 to slide upward. The upward sliding action of the bearing wheel 18 helps support the drum, reduces the load on the chain 4 system, and provides a smoother lifting experience. When the plastic film drum is lifted to the limit groove position at the upper part of the ladder frame 1, the chain 4 stops. During operation, the hook 5 keeps the roll in the same position. At this time, the plastic film roll will roll down naturally and be positioned in the limiting groove. Then, the operator can further adjust the position of the limiting part 8 and use the positioning screw 9 to ensure the precise positioning of the roll on the mounting frame. The design of the limiting part 8 and the positioning screw 9 allows the operator to make fine adjustments according to actual needs, ensuring that the roll can remain stable during the subsequent thermoforming process. After positioning is completed, the operator can unload the roll by reversing the above steps, or start a new production cycle directly. If a new roll needs to be replaced, simply repeat the above process.

[0023] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A blister machine automatic feeding device, characterized in that, The utility model provides a kind of ladder frame, reduction motor, bearing seat, sprocket, chain, barb, slider, roller shaft, rubber bearing, limiting piece and positioning screw, the ladder frame (1) has two side trusses, the two sides of the top rear of the ladder frame (1) are provided with limiting slot, the ladder frame (1) rear one side is provided with reduction motor (2), the ladder frame (1) rear is provided with bearing seat (21) outside the output shaft of reduction motor (2), the ladder frame (1) upper portion and inner lower portion both sides are rotatably provided with sprocket (3), the output shaft of reduction motor (2) is connected with its one sprocket (3), the same side sprocket (3) outside is rotatably engaged with chain (4), the outer chain plate outside one of two side chain (4) front is provided with barb (5), the same side barb (5) is provided with slider (51) slidingly connected in the ladder frame (1), the two limiting slots of the ladder frame (1) are placed with roller shaft (6), the two ends of the roller shaft (6) are provided with rubber bearing (7), the roller shaft (6) is located at the position close to the rubber bearing (7) of both sides, and limiting piece (8) is slidably arranged, the limiting piece (8) is internally threaded and penetrates a plurality of symmetrically distributed positioning screws (9), and the end of each positioning screw (9) is abutted on the outside of the roller shaft (6).

2. The automatic feeding device of the blister machine according to claim 1, characterized in that, The motion trajectory of the slider (51) is guided by the upper frame of the ladder frame (1).

3. The automatic feeding device of the blister machine according to claim 2, characterized in that, It also includes booster tank (10), telescopic rod (11), spring (13), piston rod (14), air pipe (15), sealed tank (16), electromagnetic valve (17) and bearing wheel (18), the bottom rear of the ladder frame (1) is provided with booster tank (10), the top of the booster tank (10) is hinged with telescopic rod (11), the rear of the telescopic rod (11) is provided with spring (13), the bottom of the spring (13) is provided with piston rod (14), the top of the piston rod (14) is connected with the bottom of the spring (13), the two sides of the booster tank (10) are communicated with air pipe (15), the lower two sides of the ladder frame (1) are symmetrically provided with sealed tank (16), the two air pipes (15) are communicated with the lower sealed tank (16), the top of each sealed tank (16) is provided with electromagnetic valve (17), and the inside of each sealed tank (16) is slidably provided with bearing wheel (18).

4. The automatic feeding device of the blister machine according to claim 3, characterized in that, It also includes handle (12), and the telescopic end of the telescopic rod (11) is provided with handle (12).

5. The automatic feeding device of the blister machine according to claim 4, characterized in that, The bottom of the ladder frame (1) is higher than the bottom of each bearing wheel (18).

6. The automatic feeding device of the blister machine according to claim 5, characterized in that, When the telescopic rod (11) rotates and descends, the rear spring (13) is compressed and deformed, and drives the lower piston rod (14) to slide in the booster tank, so that negative pressure is formed in the booster tank (10), enters the air pipes (15) on both sides, and finally enters the sealed tanks (16), so that the bearing wheels (18) are pressed and slide downward.

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