CN114932674A

CN114932674A - Packaging rolling plastic suction forming machine

Info

Publication number: CN114932674A
Application number: CN202210472321.6A
Authority: CN
Inventors: 陈文凯; 方传韪; 陈凯
Original assignee: Anhui Kailisi Intelligent Packaging Co ltd
Current assignee: Anhui Kailisi Intelligent Packaging Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-23
Anticipated expiration: 2042-04-29
Also published as: CN114932674B

Abstract

The invention discloses a packaging rolling blister forming machine, which comprises a supporting seat, wherein a transmission gear is arranged in the supporting seat, one end of a rotating shaft is fixed at the center of the transmission gear, the other end of the rotating shaft penetrates through the supporting seat and is fixedly connected with a blister roller, a rotary disc and a fixed disc are respectively arranged on the side of the blister roller, an annular groove is formed in the opposite surface of the fixed disc and the rotary disc, and a compression strip is fixed on the inner wall of the annular groove. The effect of continuous rolling plastic uptake is achieved, and the production cost of the product is reduced.

Description

Packaging rolling plastic suction forming machine

Technical Field

The invention relates to the technical field of packaging, rolling and blister forming, in particular to a packaging, rolling and blister forming machine.

Background

The plastic uptake is a plastic processing technology, the main principle is that after a flat plastic hard sheet is heated and softened, the plastic hard sheet is absorbed on the surface of a mould in vacuum, and the plastic hard sheet is formed after cooling, so that the plastic uptake box is widely used in the industries of plastic packaging, lamp decoration, advertisement, decoration and the like, and the plastic uptake box mainly comprises the following raw materials: PVC, PS, PP, PET, PETG and flocking, antistatic, electrically conductive etc. material, plastic uptake is a plastics processing technology, and the leading principle is to heat the rigid sheet material of flat plastics and soften the back, adopts vacuum adsorption to the mould surface, and the shaping after the cooling is widely used for trades such as plastic packaging, lamp decoration, advertisement, decoration, plastic uptake packing: adopt the plastic uptake technology to produce plastic products, and carry out the general title of encapsulation to the product with corresponding equipment, the plastic uptake packing goods includes: blister, tray, blister box, synonyms also include: vacuum caps, blisters, and the like. The plastic uptake package has the main advantages of saving raw and auxiliary materials, light weight, convenient transportation and good sealing performance, and meets the requirement of environment-friendly green package; any special-shaped product can be packaged, and no additional buffer material is needed for boxing; the packaged product is transparent and visible, has beautiful appearance, is convenient to sell, is suitable for mechanized and automatic packaging, is convenient for modern management, saves manpower and improves efficiency. The blister packaging equipment mainly includes: plastic uptake forming machine, punch press, sealing machine, high frequency machine, and edge folding machine. The packaged products formed by packaging can be divided into: card inserting, card sucking, double-bulb shell, half-bulb shell, double-folded bulb shell, triple-folded bulb shell and the like.

Traditional plastics blister pack can use a plastic uptake make-up machine, though can be the realization to plastic material's blister pack shaping, but also certain drawback that correspondingly exists is as follows:

1. the traditional plastic suction forming machine adopts a plane adsorption method, so that the number of products formed by one-time plastic suction is limited, and the production cost of the products is higher;

2. the traditional plastic suction forming machine needs to manually control the opening and closing of the vacuum pump to realize plastic suction and demoulding, wastes time and labor, cannot be integrally connected with the front transmission line and the rear transmission line, can only place a formed product on the transmission line by means of manual participation, has more manual participation and has lower automation level;

3. in addition, the plastic uptake effect of the traditional plastic uptake forming machine on the mold is kept unchanged from beginning to end, so that the product can be subjected to a stronger plastic uptake effect at the beginning, the strong suction effect acts on the product instantly, cracks or folds of the formed product are easily caused, and the standard reaching rate of the product is further reduced.

Aiming at the problems, the invention provides a packaging rolling blister forming machine, which adopts a rolling blister process to realize the integrated connection of front and rear transmission lines of the forming machine while ensuring the standard reaching rate of products, namely, the effects of automatic blister transmission and demoulding and exporting are achieved, rolling blister can be continuously carried out along with the import of transmission line products, the automation level is higher, and the production cost of the products is also reduced.

Disclosure of Invention

The invention aims to provide a packaging, rolling and blister forming machine to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a packaging, rolling and plastic sucking molding machine, which comprises a supporting seat, a transmission gear is arranged inside the supporting seat, and one end of a rotating shaft is fixed at the center of the transmission gear, the other end of the rotating shaft penetrates through the supporting seat and is fixedly connected with a blister roll, and the sides of the plastic suction roller are respectively provided with a rotary disc and a fixed disc, the opposite surfaces of the fixed disc and the rotary disc are provided with annular grooves, and the inner wall of the annular groove is fixed with a compression strip, the fixed disk is internally provided with an air exhaust hole in a penetrating way, and the outer wall of the plastic suction roller is provided with a plastic suction groove, the interior of the plastic suction roller is transversely provided with a communicating cavity, the bottom end of the plastic suction groove is provided with a plastic suction hole which is communicated and connected with one end of the communicating cavity, and a sealing assembly is arranged between the end part of the communicating cavity and the rotary table and used for sealing the corresponding communicating cavity, and a through hole is formed in the transverse corresponding position of the rotary table and the communicating cavity in a penetrating manner.

Preferably, the supporting seat is composed of a motor, a belt and an output shaft, the supporting seat is used for supporting the rolling plastic suction main body structure, and the output shaft and the transmission gear form a transmission structure through the belt.

Preferably, the plastic suction roller is of a regular dodecagonal structure, each edge of the plastic suction roller is symmetrically provided with a plastic suction groove, and the bottom ends of the twenty-four plastic suction grooves are provided with plastic suction holes.

Preferably, twelve groups of the communicating cavities are distributed in the plastic suction roller at equal angles, and the end parts of the two plastic suction holes in the same section are communicated with the corresponding communicating cavities to ensure the plastic suction synchronism of the two adjacent plastic suction holes.

Preferably, the rotary disc and the fixed disc are tightly attached to each other, and the rotary disc and the fixed disc are sleeved on the outer wall of the rotary shaft through bearings.

Preferably, the turntable and the blister roll are tightly connected through twelve groups of bolts, one side of the blister roll is correspondingly provided with twelve groups of screw holes matched with the turntable, and the end part of the fixed disk is fixed on the side of the support seat through the bolts.

Preferably, the compressing strip is arranged in a half circular ring shape, the outer surface of the compressing strip is arranged in an inclined mode, and the upper surface of the initial end of the compressing strip is attached to the surface of the annular groove in the fixed disc.

Preferably, the air exhaust holes are matched with a vacuum pump, and the air in the communication cavity can be exhausted into the annular groove between the rotary disc and the fixed disc through the vacuum pump and then exhausted through the air exhaust holes.

Preferably, seal assembly includes annular spring holder, reset spring and ball, and the port department in intercommunication chamber is fixed with annular spring holder, the outer end welding of annular spring holder has reset spring's one end, and reset spring's other end fixedly connected with ball to the tip through-hole of ball is located the inside of ring channel.

Preferably, the ball is tightly attached to the inner wall of the rotary table, the ball and the rotary table form a sealed clamping sliding type telescopic structure under the reset action of the reset spring, a distance is reserved between the end part of the ball and the annular groove, and a through groove communicated with the communicating cavity is formed in the center of the annular spring seat.

Compared with the prior art, the invention has the beneficial effects that: the packaging, rolling and plastic sucking molding machine comprises a plastic sucking molding machine,

on the basis of an original packaging blister forming machine, a traditional plane adsorption method is changed, rolling blister is replaced, products guided along with a transmission line can be continuously rolled and blister formed by continuous rotation of a blister roller, periodic extrusion is performed on balls through pressing strips, so that blister effects are periodically generated in blister holes, continuous blister forming of the products can be realized under the rotation effect of twelve groups of blister grooves, a continuous rolling blister effect is achieved, and the production cost of the products is reduced;

on the basis, through the mutual matching effect among the parts such as the communicating cavity, the annular spring seat, the reset spring and the like, twelve groups of balls are sequentially extruded by the compression strip by utilizing the continuous rotation of the turntable, so that the corresponding communicating cavity is intermittently opened and closed, and in one period of the blister roller, the communicating cavity keeps a half-period open state and then keeps a half-period closed state, thereby realizing the blister and demolding process of a product in one rotation period of the blister roller, further enabling the packaging rolling blister forming machine to be integrally connected with a front transmission line and a rear transmission line, reducing the amount of manual participation and having higher automation effect;

three, in addition, the surface that compresses tightly the strip sets up for invading to one side, compresses tightly the strip promptly and can crescent to the squeezing action of ball when rotatory to make the clearance between ball and the through-hole crescent, the vacuum adsorption effect that the intercommunication intracavity portion received promptly also can crescent, and then make the plastic uptake effect of plastic uptake groove progressive by little to big, avoided directly producing the condition that huge plastic uptake effect leads to product quality to be influenced, thereby promoted the standard reaching rate of product.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of the cross-sectional structure of the present invention;

FIG. 3 is a schematic perspective view of the turntable according to the present invention;

FIG. 4 is a schematic view of a three-dimensional connection structure of the blister roll and the seal assembly according to the present invention;

FIG. 5 is a schematic perspective view of the fixing plate of the present invention;

FIG. 6 is a schematic view of a three-dimensional connection structure of the blister roll, the turntable and the fixed disk according to the present invention;

FIG. 7 is a schematic perspective view of a blister roll according to the present invention;

FIG. 8 is a schematic perspective view of the blister slot and the blister hole of the present invention;

FIG. 9 is a schematic view of a cut-away perspective view of a blister roll according to the present invention;

fig. 10 is a schematic cross-sectional view of the blister roll of the body 9 of the present invention.

In the figure: 1. a supporting seat; 2. a transmission gear; 3. a rotating shaft; 4. a suction molding roller; 5. a turntable; 6. fixing the disc; 7. an annular groove; 8. compressing the strips; 9. an air exhaust hole; 10. a plastic suction groove; 11. plastic sucking holes; 12. a communicating cavity; 13. an annular spring seat; 14. a return spring; 15. a ball bearing; 16. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: a packaging, rolling and plastic sucking molding machine, which comprises a supporting seat 1, a transmission gear 2 is arranged inside the supporting seat 1, and one end of a rotating shaft 3 is fixed at the center of the transmission gear 2, the other end of the rotating shaft 3 penetrates through the supporting seat 1 and is fixedly connected with a blister roll 4, and the sides of the blister roller 4 are respectively provided with a rotary disc 5 and a fixed disc 6, the opposite surfaces of the fixed disc 6 and the rotary disc 5 are provided with an annular groove 7, and the inner wall of the annular groove 7 is fixed with a compression strip 8, the fixed disk 6 is internally provided with an air exhaust hole 9 in a penetrating way, and the outer wall of the plastic suction roller 4 is provided with a plastic suction groove 10, the inner part of the plastic suction roller 4 is transversely provided with a communicating cavity 12, and the bottom end of the plastic suction groove 10 is provided with a plastic suction hole 11 communicated with one end of the communicating cavity 12, and a sealing assembly is arranged between the end part of the communicating cavity 12 and the rotary disc 5 and is used for sealing the corresponding communicating cavity 12, and a through hole 16 is formed in the transverse corresponding position of the rotary disc 5 and the communicating cavity 12 in a penetrating manner.

And further: supporting seat 1 comprises motor, belt and output shaft, and supporting seat 1 is used for supporting roll-in plastic uptake major structure to constitute transmission structure through the belt between output shaft and the drive gear 2, it is rotatory continuously to drive the output shaft through motor output kinetic energy, the rethread belt is stably transmitted the kinetic energy of output shaft to drive gear 2 on, thereby make drive gear 2 can stably drive pivot 3 and rotate, and then provide kinetic energy for the rotation of plastic uptake roller 4.

And further: the plastic uptake roller 4 is regular dodecagon body structure, and the equal symmetry in every limit of plastic uptake roller 4 has seted up plastic uptake groove 10, and the plastic uptake hole 11 has all been seted up to the bottom of twenty four plastic uptake grooves 10, every plastic uptake groove 10's inside all can set up the mould, make the product according to the appearance plastic uptake shaping of mould, and the plastic uptake roller 4 of regular dodecagon body has guaranteed that the plastic uptake groove 10 on every edge is the same, and the plastic uptake groove 10 on two adjacent edges is at the equal angular distribution of plastic uptake roller 4 outsidely, and the contained angle between the plastic uptake groove 10 on two adjacent edges is thirty degrees.

Further: the inside equal angular distribution of plastic uptake roller 4 of intercommunication chamber 12 has twelve groups, and be in same cross-section the tip of two plastic uptake holes 11 all with the intercommunication chamber 12 through connection that corresponds, be used for guaranteeing the plastic uptake synchronism of two adjacent plastic uptake holes 11, guaranteed that every group intercommunication chamber 12 all sets up with corresponding two sets of plastic uptake hole 11 intercommunication, consequently when intercommunication chamber 12 inside produces the suction effect and act on, the suction effect can transmit to plastic uptake hole 11 in step, make the synchronous suction effect that produces in intercommunication chamber 12 corresponding two sets of plastic uptake holes 11, and then utilize plastic uptake effect in plastic uptake hole 11 can be with the stable absorption of mould in plastic uptake groove 10, thereby realize the plastic uptake shaping of product.

Further: closely laminate between carousel 5 and the fixed disk 6, and carousel 5 and fixed disk 6 all locate the outer wall of pivot 3 through the bearing housing, guaranteed the leakproofness between carousel 5 and the fixed disk 6, and simultaneously, guaranteed that pivot 3 can rotate in the center department of carousel 5 and fixed disk 6 in step, utilize sealed bearing can increase the sealed effect between carousel 5 and the fixed disk 6 moreover, vacuum state between carousel 5 and the fixed disk 6 provides the guarantee.

Further: through twelve groups of bolt zonulae occludens between carousel 5 and the blister roll 4, and one side correspondence of blister roll 4 has seted up twelve groups and its assorted screw, and the avris of bolted fixation seat 1 is passed through to the tip of fixed disk 6, because the avris of carousel 5 and blister roll 4 passes through twelve groups of bolted connection and fixed disk 6 passes through the one side of bolted fixation at supporting seat 1, consequently when pivot 3 drives blister roll 4 and rotates, blister roll 4 can drive carousel 5 simultaneously and continue to rotate, thereby make carousel 5 can laminate the rotary motion that the outer wall of fixed disk 6 has the leakproofness.

Further: compressing tightly strip 8 and setting for the half ring form, and compressing tightly the surface of strip 8 and setting for the slope to compress tightly the upper surface laminating of 8 initial ends of strip in the surface of the inside ring channel 7 of fixed disk 6, when taking place relative rotation between carousel 5 and the fixed disk 6, carousel 5 can be simultaneously taken multiunit seal assembly and compress tightly strip 8 contact in proper order, and make multiunit seal assembly compressed deformation in proper order under the relative rotation squeezing action of compressing tightly strip 8, and then realize opening in proper order of twelve group's intercommunication chambeies 12.

And further: the air suction holes 9 are matched to form a vacuum pump, air in the communicating cavity 12 can be pumped into the annular groove 7 between the rotary disc 5 and the fixed disc 6 through the vacuum pump and is pumped out through the air suction holes 9, when the vacuum pump pumps air through the air suction holes 9, the air in the communicating cavity 12 is sucked into the annular groove 7 firstly when the communicating cavity is not sealed by the sealing assembly, and is pumped out through the air suction holes 9 finally.

Further: seal assembly includes annular spring seat 13, reset spring 14 and ball 15, and the port department of intercommunication chamber 12 is fixed with annular spring seat 13, the outer end welding of annular spring seat 13 has reset spring 14's one end, and reset spring 14's other end fixedly connected with ball 15, and the tip of ball 15 runs through the inside that through-hole 16 is located ring channel 7, this seal assembly equipartition angular distribution has twelve groups, and ten sufficient seal assembly provides sealed effect for twelve group's intercommunication chamber 12 is synchronous, utilize ball 15 to realize the synchronous of twelve group's through-hole 16 and seal.

Further: the balls 15 are tightly attached to the inner wall of the turntable 5, the balls 15 and the turntable 5 form a sealed clamping sliding type telescopic structure under the reset action of the reset spring 14, a distance is reserved between the end part of each ball 15 and the annular groove 7, a through groove communicated with the communication cavity 12 is formed in the center of the annular spring seat 13, when the pressing strip 8 with the outer surface being obliquely arranged penetrates through the distance between the end part of each ball 15 and the annular groove 7, the pressing strip 8 can sequentially extrude twelve groups of balls 15 outwards, so that the balls 15 gradually relieve the extrusion sealing action on the through holes 16, and the gaps between the balls 15 and the through holes 16 are gradually increased along with the fluctuation of the outer surface of the pressing strip 8, so that the circulation of air among the communication cavity 12, the through holes 16 and the annular groove 7 is realized, and then the communication cavity 12, the through holes 16 and the annular groove 7 are sequentially communicated with the annular groove 7, the through holes 16 and the communication cavity 12, The plastic uptake hole 11 and the plastic uptake groove 10 realize the plastic uptake of the product, the communicating cavity 12 can keep the unblocked state when the turntable 5 is in the first half rotation period, and the ball 15 can automatically reset and seal the communicating cavity 12 again when the turntable 5 enters the second half rotation period, thereby realizing the plastic uptake molding and the automatic demolding of the plastic uptake molded product.

The working principle is as follows: when the packaging, rolling and plastic sucking molding machine is used, firstly, the transmission gear 2 is connected to the upper end of the belt in the supporting seat 1, and a stable transmission structure is formed between the transmission gear 2 and the output shaft through the belt, then the outer wall of the rotating shaft 3 at the end part of the transmission gear 2 is sleeved with the bearing, the fixed disk 6 and the turntable 5 are sequentially and fixedly sleeved outside the bearing, then the end part of the fixed disk 6 is fixed on one side of the upper end of the supporting seat 1 through the bolts, so that the fixed disk 6 and the supporting seat 1 are kept in a fixed state, then the plastic sucking roller 4 is fixedly connected to the end part of the rotating shaft 3, the turntable 5 is hermetically fixed on one side of the plastic sucking roller 4 through a plurality of groups of bolts, twelve groups of balls 15 respectively penetrate through and are clamped in the twelve groups of through holes 16 as shown in figure 2, and the twelve groups of balls 15 synchronously block and seal the end parts of the twelve groups of through holes 16 under the extrusion action of the twelve groups of return springs 14, and a section of through hole 16 is arranged at the end part of the ball 15 and is positioned in the annular groove 7, and a certain gap is reserved between the annular groove 7 and the ball 15, at the moment, the integral installation of the packaging rolling plastic suction forming machine is finished.

Then, a vacuum pump is connected in an air suction hole 9 which is arranged in a fixed disc 6 in a penetrating way as shown in figure 6, a plastic suction roller 4 is connected with a product transmission line in a fitting way, so that the preparation work of the packaging and rolling plastic suction forming machine is completed, then a motor and the vacuum pump are synchronously started, so that a transmission gear 2 continuously drives a rotating shaft 3 to rotate, and the rotating shaft 3 drives the rotating disc 5 to rotate synchronously when driving the plastic suction roller 4 to rotate because the rotating disc 5 and the plastic suction roller 4 are fixedly connected through bolts, so that a relative rotation state is achieved between the rotating disc 5 and the fixed disc 6, and the vacuum pump continuously generates air suction action in an annular groove 7 through the air suction hole 9, the flow is explained by using a group of through holes 16, a communication cavity 12, a plastic suction hole 11 and a plastic suction groove 10 which correspond to one group of sealing components, when a ball 15 enters a front plate rotation period along with the rotating disc 5, the ball 15 starts to contact with the lower end of the pressing strip 8, and the pressing strip 8 can gradually generate an increasing squeezing effect on the ball 15 along with the rotation of the ball 15, so that the ball 15 gradually leaves away from the port of the corresponding through hole 16 in the first half rotation period, that is, the gap between the through hole 16 and the ball 15 gradually increases, further, the through hole 16 is mutually communicated and connected with the corresponding annular spring seat 13, the communicating cavity 12, the blister hole 11 and the blister groove 10, the blister effect on the product is achieved under the suction effect of the vacuum pump, the ball 15 gradually enters into the rotation period, at the moment, the contact squeezing effect on the ball 15 is suddenly released by the second half pressing strip 8, and the ball 15 is reset and tightly propped against the port of the through hole 16 under the reset effect of the corresponding reset spring 14, namely, the quick sealing of the communicating cavity 12 is realized, thereby the plastic uptake effect disappears suddenly when the product synchronous motion arrives the latter half, and reached the effect of the automatic drawing of patterns of a shaping product, twelve groups of plastic uptake groove 10 that can make two liang of correspondences of 4 outer walls of plastic uptake roller when plastic uptake roller 4 drives ten two sets of seal assembly rotation in step can carry out foretell plastic uptake and drawing of patterns step in proper order, realized linking up with front and back transmission line integration, the artifical participation volume has been reduced, higher automatic effect has, the plastic uptake effect of plastic uptake groove 10 is progressive from little to big in addition, avoided directly producing the condition that huge plastic uptake effect leads to product quality to be influenced, thereby the standard reaching rate of product has been promoted.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a packing roll-in plastic uptake make-up machine, includes supporting seat (1), its characterized in that: the plastic packaging device is characterized in that a transmission gear (2) is arranged inside the supporting seat (1), one end of a rotating shaft (3) is fixed at the center of the transmission gear (2), the other end of the rotating shaft (3) penetrates through the supporting seat (1) and is fixedly connected with a plastic packaging roller (4), a rotary disc (5) and a fixed disc (6) are respectively arranged on the lateral side of the plastic packaging roller (4), an annular groove (7) is formed in the opposite surface of the fixed disc (6) and the rotary disc (5), a compression strip (8) is fixed on the inner wall of the annular groove (7), an air suction hole (9) is formed in the fixing disc (6) in a penetrating manner, a plastic packaging groove (10) is formed in the outer wall of the plastic packaging roller (4), a communicating cavity (12) is transversely formed in the plastic packaging roller (4), a plastic packaging hole (11) communicated with one end of the communicating cavity (12) is formed in the bottom end of the plastic packaging groove (10), and a sealing assembly is arranged between the end of the communicating cavity (12) and the rotary disc (5), the sealing assembly is used for sealing the corresponding communication cavity (12), and the through hole (16) is formed in the transverse corresponding position of the turntable (5) and the communication cavity (12) in a penetrating mode.

2. The packaging roll vacuum forming machine according to claim 1, wherein: the supporting seat (1) is composed of a motor, a belt and an output shaft, the supporting seat (1) is used for supporting a rolling plastic suction main body structure, and a transmission structure is formed between the output shaft and the transmission gear (2) through the belt.

3. The packaging roll vacuum forming machine according to claim 1, wherein: the plastic suction roller (4) is of a regular dodecagonal structure, plastic suction grooves (10) are symmetrically formed in each edge of the plastic suction roller (4), and plastic suction holes (11) are formed in the bottom ends of the twenty-four plastic suction grooves (10).

4. The packaging roll vacuum forming machine according to claim 1, wherein: twelve groups of the communicating cavities (12) are distributed in the plastic suction roller (4) at equal angles, and the end parts of two plastic suction holes (11) in the same section are communicated with the corresponding communicating cavities (12) so as to ensure the plastic suction synchronism of the two adjacent plastic suction holes (11).

5. The packaging roll vacuum forming machine according to claim 1, wherein: the rotary table is characterized in that the rotary table (5) and the fixed table (6) are tightly attached to each other, and the rotary table (5) and the fixed table (6) are sleeved on the outer wall of the rotary shaft (3) through bearings.

6. The packaging roll vacuum forming machine according to claim 1, wherein: the rotary table (5) is tightly connected with the plastic suction roller (4) through twelve groups of bolts, one side of the plastic suction roller (4) is correspondingly provided with twelve groups of screw holes matched with the plastic suction roller, and the end part of the fixed disc (6) is fixed on the side of the support seat (1) through the bolts.

7. The packaging roll vacuum forming machine according to claim 1, wherein: the pressing strip (8) is arranged in a half circular ring shape, the outer surface of the pressing strip (8) is arranged in an inclined mode, and the upper surface of the initial end of the pressing strip (8) is attached to the surface of the annular groove (7) in the fixed disc (6).

8. The packaging roll vacuum forming machine according to claim 1, wherein: the air suction holes (9) are matched with a vacuum pump, and the air in the communicating cavity (12) can be pumped into the annular groove (7) between the rotary disc (5) and the fixed disc (6) through the vacuum pump and is pumped out through the air suction holes (9).

9. The packaging roll vacuum forming machine according to claim 1, wherein: seal assembly includes annular spring seat (13), reset spring (14) and ball (15), and the port department of intercommunication chamber (12) is fixed with annular spring seat (13), the outer end welding of annular spring seat (13) has the one end of reset spring (14), and the other end fixedly connected with ball (15) of reset spring (14) to the tip of ball (15) runs through-hole (16) and is located the inside of ring channel (7).

10. The packaging roll vacuum forming machine according to claim 9, wherein: the ball (15) is tightly attached to the inner wall of the rotary table (5), the ball (15) and the rotary table (5) form a sealed clamping sliding type telescopic structure under the reset action of the reset spring (14), a distance is reserved between the end part of the ball (15) and the annular groove (7), and a through groove communicated with the communicating cavity (12) is formed in the center of the annular spring seat (13).