Plastic uptake forming mechanism

Abstract

The utility model discloses a plastic uptake forming mechanism which comprises a forming cylinder, a forming mold, a lifting component and a guide component, the forming die is mounted on the forming seat in the forming cylinder; the lifting component drives the forming base to ascend and descend in the forming cylinder and comprises a motor, a left transmission assembly and a right transmission assembly, the motor is arranged outside the forming cylinder and electrically connected with the controller, and the left transmission assembly and the right transmission assembly are arranged in the forming cylinder. The left transmission assembly and the right transmission assembly each comprise a transmission belt, an upper transmission wheel and a lower transmission wheel, the transmission belts are wound around the upper transmission wheels and the lower transmission wheels, the motor drives the transmission belts of the left transmission assembly and the right transmission assembly to conduct synchronous transmission, and the left side and the right side of the forming base are connected with the transmission belts of the left transmission assembly and the right transmission assembly respectively. And during demolding, slow demolding or multi-section demolding can be adopted according to requirements, so that the forming mold is gradually separated from a formed product, the formed product is prevented from sinking, and the forming quality is improved.

Description

Technical Field

[0001] The utility model relates to an improved invention of a blister equipment, in particular to a blister forming mechanism. Background Art

[0002] The vacuum forming operation starts with blowing air to stretch the softened sheet upwards; then the forming mold rises and enters the stretched sheet; then the air is pumped out to wrap the stretched sheet outside the mold; then it is cooled and shaped; finally the forming mold moves down, the forming mold is separated from the formed product, and demolding is achieved. At present, the lifting of the forming mold is driven by a cylinder. Two cylinders drive the forming mold from both sides to lift it up and down in the forming cylinder, so that the forming mold enters the vacuum forming operation or demolding operation. However, the cylinder drives the raising and lowering of the forming mold in one step, and a negative pressure is formed between the forming mold and the formed product during demolding, which leads to problems such as dents and damages of the formed product. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the utility model is to provide a vacuum forming mechanism with good demoulding effect and good forming quality.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the vacuum forming mechanism is characterized by comprising a forming cylinder, a forming mold, a lifting component and a guide component;

[0005] The molding die is mounted on a molding seat in the molding cylinder;

[0006] The lifting component drives the molding seat to lift in the molding cylinder, and the lifting component includes a motor, a left transmission assembly and a right transmission assembly. The motor is arranged outside the molding cylinder and is electrically connected to the controller. The left transmission assembly and the right transmission assembly are arranged in the molding cylinder. The left transmission assembly and the right transmission assembly both include a transmission belt, an upper transmission wheel and a lower transmission wheel. The transmission belt is wound around the upper transmission wheel and the lower transmission wheel. The motor drives the transmission belts of the left transmission assembly and the right transmission assembly to transmit synchronously. The left and right sides of the molding seat are respectively connected to the transmission belts of the left transmission assembly and the right transmission assembly;

[0007] The guide component comprises a column and a guide sleeve sleeved outside the column, and the guide sleeve is installed on the forming seat.

[0008] The motor of the utility model drives the transmission belt to drive the molding die to rise and fall. The rise or fall of the molding die is realized by the forward and reverse rotation of the motor. The speed of the molding die can be realized by adjusting the speed of the motor. When demolding, the motor operation is controlled by the controller. Slow demolding or multi-stage demolding can be adopted according to the needs to gradually separate the molding die from the molded product, prevent the molded product from sinking, and improve the molding quality. The motor of the utility model is arranged outside the molding cylinder, the motor is not easy to be damp or damaged, has a longer service life, and is more convenient for the maintenance of the motor.

[0009] Preferably, the lower transmission wheels of the left transmission assembly and the right transmission assembly are connected to a rotating shaft, and the rotating shaft is connected to the output shaft of the motor; one end of the rotating shaft is a power input end, and the power input end is sealed with the forming cylinder, and the other end of the rotating shaft is arranged in the forming cylinder. One motor drives the transmission belts of the left and right transmission assemblies to synchronously drive, so that the molding mold can be stably lifted and lowered; the synchronization is high and the equipment cost is lower.

[0010] Preferably, a mold frame pushing component is provided outside the molding tube, and the mold frame pushing component includes two pushing members and a driving member for driving the pushing members to rise and fall, and the two pushing members are arranged on both sides of the molding tube. After molding, the driving member drives the pushing members to move upward, that is, drives the mold frame to move upward, and the molded product is not restricted by the mold frame, and the molded product can be taken out at this time.

[0011] Preferably, the driving member is connected to a push member, and the two push members are connected through a synchronous assembly, the synchronous assembly includes a transmission shaft and two groups of transmission members, the transmission members include a transmission chain, an upper sprocket and a lower sprocket, the transmission chain is wound around the upper sprocket and the lower sprocket, the lower sprockets of the two groups of transmission members are connected to the driving shaft, and the two push members are respectively connected to their corresponding transmission chains. One driving member drives the transmission chains of the two transmission members to transmit synchronously, so that the two push members are lifted and lowered synchronously; the synchronization is high and the equipment cost is lower.

[0012] Preferably, the transmission shaft is rotatably arranged at the bottom of the forming cylinder. The structural design is reasonable, which can make the two sets of transmission parts work in conjunction with each other without taking up space or affecting the vacuum forming operation.

[0013] Preferably, both ends of the rotating shaft in the forming cylinder are rotatably arranged with the forming cylinder through bearings, and the bearings are equipped with oil seals, so that the sealing effect is good and the service life of the bearings is long.

[0014] Preferably, the inner cavity of the molding die is connected with an air pipe, the air pipe is connected with a valve, the molding die is provided with an air hole communicating with the inner cavity, and the valve is electrically connected with a controller; during demolding, the air hole blows air to separate the molding die from the molded product and compensate for the space between the molding die and the molded product to prevent deformation of the molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0016] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0017] Figure 3 It is a cross-sectional view of the utility model.

[0018] Figure 4 It is a schematic diagram of the lifting component and the synchronous assembly of the utility model. DETAILED DESCRIPTION

[0019] The following describes the details and working principle of the implementation and examples of the utility model in conjunction with the accompanying drawings. This type of vacuum forming mechanism includes a forming tube 1, a forming mold 2, a lifting component 4 and a guide component 3; the forming mold is installed on a forming seat 18 in the forming tube, the forming mold has an inner cavity 20, the inner cavity is connected to an air pipe 17, the air pipe is connected to a valve, and the forming mold is provided with an air hole 23 that communicates with the inner cavity. When demolding, the air hole 23 blows air; the lifting component 4 drives the forming seat 18 to rise and fall in the forming tube, and the lifting component includes a motor, a left transmission component 21 and a right transmission component 22. The motor is arranged outside the forming tube 1, and the motor and the valve are electrically connected to the controller, and the controller controls the operation of the motor and the valve to improve the quality of demolding. The left transmission assembly 21 and the right transmission assembly 22 are arranged in the forming tube 1, and the left transmission assembly and the right transmission assembly both include a transmission belt 10, an upper transmission wheel 11 and a lower transmission wheel 12, and the transmission belt is wound around the upper transmission wheel and the lower transmission wheel. The motor drives the transmission belts 10 of the left transmission assembly and the right transmission assembly to transmit synchronously. In the figure, the lower transmission wheels of the left transmission assembly and the right transmission assembly are connected to a rotating shaft 16, and the rotating shaft 16 is connected to the output shaft of the motor; one end of the rotating shaft 16 is a power input end, and the power input end is sealed with the forming tube 1, and an asbestos pad 19, The O-ring is used for sealing; the other end of the rotating shaft 16 is arranged in the forming cylinder, and the two ends of the rotating shaft in the forming cylinder are rotatably arranged with the forming cylinder 1 through bearings 14, and the bearings are equipped with oil seals 13, so that the sealing effect is good and the bearing has a long service life; the left and right sides of the forming seat 18 are respectively connected to the transmission belts 10 of the left transmission assembly and the right transmission assembly; the guide component 3 includes a column 7 and a guide sleeve 8 sleeved outside the column, and the guide sleeve is installed on the forming seat 18. In order to ensure the stable lifting of the forming seat, four groups of guide columns and guide sleeves are provided, corresponding to the four corners of the forming seat, so that the forming seat can be stably lifted and lowered along the column.During the forming operation, the air hole 9 blows air to open the softened sheet, the motor rotates forward to drive the lower transmission wheel 12 to rotate, and the lower transmission wheel drives another lower transmission wheel to rotate synchronously through the rotating shaft 16, and then the two transmission belts 10 are synchronously driven to drive the forming seat 18 and the forming mold 2 on the forming seat to rise. After the forming mold is in place, the air hole 9 inhales air, and the sheet is covered outside the forming mold. When the material is cooled and shaped, a formed product with the same shape as the forming mold is formed; finally, demolding, the air hole blows air to separate the forming mold 2 from the formed product, and the motor reverses to drive The transmission belt drives in the reverse direction, driving the forming seat and the forming mold to move downward. The downward movement here can be set to slow downward movement or multi-stage downward movement according to the needs. The slow downward movement gradually separates the forming mold from the formed product. The multi-stage downward movement divides the downward movement of the forming mold into multiple stages, and the forming mold and the formed product are separated in stages to avoid the forming mold moving down too fast and causing the formed product to sag. In the process of gradual separation, the air hole 9 blows air to compensate for the space between the forming mold and the formed product, and prevents the formed product from being deformed due to the negative pressure generated by the downward movement of the forming mold, thereby improving the forming quality. In the utility model, a motor drives the transmission belts of the left and right transmission components to drive synchronously, so that the forming mold can be stably raised and lowered, with high synchronization and lower equipment cost. Moreover, the motor is arranged outside the forming cylinder, so the motor is not easily affected by moisture or damage, has a longer service life, and is more convenient for motor maintenance.

[0020] The molding tube 1 is provided with a mold frame push component, and the mold frame push component includes two push components 6 and a driving component 5 for driving the push components to rise and fall, and the two push components are arranged on both sides of the molding tube. After molding, the driving component 5 drives the push components to move upward, that is, the push components 6 push the mold frame to move upward, and the molded product is not restricted by the mold frame, and the molded product can be taken out at this time. The driving component 5 is connected to a push component 6, and the two push components are connected through a synchronous component, and the synchronous component includes a transmission shaft 15 and two groups of transmission components, and the transmission components include a transmission chain 23, an upper sprocket 24 and a lower sprocket 25. The transmission chain is wound around the upper sprocket and the lower sprocket, and the lower sprockets of the two groups of transmission components are connected to the transmission shaft, and the two push components 6 are respectively connected to their corresponding transmission chains. One driving component drives the transmission chains of the two transmission components to transmit synchronously, so that the two push components rise and fall synchronously; the synchronization is high and the equipment cost is lower. The transmission shaft is rotatably arranged at the bottom of the molding tube. The structural design is reasonable, which can make the two sets of transmission parts work in linkage without taking up space or affecting the blister forming operation.

Claims

1. A vacuum forming mechanism, characterized in that: It includes a forming cylinder, a forming mold, a lifting component and a guiding component; The molding die is mounted on a molding seat in the molding cylinder; The lifting component drives the molding seat to lift in the molding cylinder, and the lifting component includes a motor, a left transmission assembly and a right transmission assembly. The motor is arranged outside the molding cylinder and is electrically connected to the controller. The left transmission assembly and the right transmission assembly are arranged in the molding cylinder. The left transmission assembly and the right transmission assembly both include a transmission belt, an upper transmission wheel and a lower transmission wheel. The transmission belt is wound around the upper transmission wheel and the lower transmission wheel. The motor drives the transmission belts of the left transmission assembly and the right transmission assembly to transmit synchronously. The left and right sides of the molding seat are respectively connected to the transmission belts of the left transmission assembly and the right transmission assembly; The guide component comprises a column and a guide sleeve sleeved outside the column, and the guide sleeve is installed on the forming seat.

2. The blister forming mechanism according to claim 1, characterized in that: The lower transmission wheels of the left transmission assembly and the right transmission assembly are connected to a rotating shaft, and the rotating shaft is connected to the output shaft of the motor; one end of the rotating shaft is a power input end, and the power input end is sealed with the forming tube, and the other end of the rotating shaft is arranged in the forming tube.

3. The blister forming mechanism according to claim 1, characterized in that: A mold frame pushing component is arranged outside the forming tube, and the mold frame pushing component comprises two pushing members and a driving member for driving the pushing members to rise and fall, and the two pushing members are arranged on both sides of the forming tube.

4. The blister forming mechanism according to claim 3, characterized in that: The driving member is connected to a pushing member, and the two pushing members are connected through a synchronous assembly. The synchronous assembly includes a transmission shaft and two groups of transmission members. The transmission members include a transmission chain, an upper sprocket and a lower sprocket. The transmission chain is wound around the upper sprocket and the lower sprocket. The lower sprockets of the two groups of transmission members are connected to the transmission shaft, and the two pushing members are respectively connected to their corresponding transmission chains.

5. The blister forming mechanism according to claim 4, characterized in that: The transmission shaft is rotatably arranged at the bottom of the forming cylinder.

6. The blister forming mechanism according to claim 2, characterized in that: The two ends of the rotating shaft in the forming cylinder are rotatably arranged with the forming cylinder through bearings, and the bearings are equipped with oil seals.

7. The blister forming mechanism according to claim 1, characterized in that: The inner cavity of the molding die is connected with an air pipe, the air pipe is connected with a valve, an air hole communicating with the inner cavity is provided on the molding die, and the valve is electrically connected with a controller; During demoulding, the air holes are blown.

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