CN112793141B - Compression roller mechanism for blown film - Google Patents
Compression roller mechanism for blown film Download PDFInfo
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- CN112793141B CN112793141B CN202011550188.9A CN202011550188A CN112793141B CN 112793141 B CN112793141 B CN 112793141B CN 202011550188 A CN202011550188 A CN 202011550188A CN 112793141 B CN112793141 B CN 112793141B
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- moving
- pushing
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- pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
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- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention relates to the field of film production, in particular to a compression roller mechanism for blown film, which comprises a bearing frame, a supporting mechanism, an extrusion roller and a moving and pushing mechanism; the supporting mechanism comprises two supporting units, each supporting unit comprises two supporting bars and a plurality of film guiding pipes, and each film guiding pipe comprises a first pipe body, a second pipe body and a connecting rod; the moving and pushing mechanism comprises a moving and pushing frame, a moving and pushing rod, a cylinder body, a connecting pipe and a lantern ring, the lantern ring is fixedly arranged on the supporting bars, and the moving and pushing frame can push the squeeze roll to move; the one end of first body and second body is passed through the connecting rod and is connected, and the one end and the lantern ring of second body rotate to be connected, and the connecting rod is located reposition of redundant personnel hole department, and the inside wall of the other end of second body is equipped with the ring channel, and the ring channel in-connection has the spring, and the free end of spring is connected with the shutoff board that slides and set up in the ring channel. When the technical scheme is adopted, the production quality of the film is improved.
Description
Technical Field
The invention relates to the field of film production, in particular to a compression roller mechanism for blown films.
Background
After the film blowing machine blows out the tubular film, the tubular film passes through two rows of obliquely arranged guide rollers under the traction action of the traction rollers, the tubular film is gradually flat, and the two extrusion rollers finally extrude the film into a film containing two films.
The two extrusion rollers are used for extruding two layers of films into one layer of film on one hand, and on the other hand, the two extrusion rollers are used for blocking air blown out by the film blowing machine, so that the phenomenon that the air enters between the two layers of films to influence the quality of the compounded film is avoided.
When the material is inhomogeneous or the raw materials is insufficient when the inflation film manufacturing machine appears crowded material at certain time quantum spiral extrusion mechanism of in-process of blown film, the thickness of film can the attenuation, and when the film was two squeeze rolls after the platykurtic under this kind of circumstances, the air that the inflation film manufacturing machine blew out can get into between two tunica adventitia to lead to the inside production bubble of film, can directly influence the quality of film.
Disclosure of Invention
The invention aims to provide a compression roller mechanism which is beneficial to improving the production quality of a film.
In order to achieve the purpose, the technical scheme of the invention provides a compression roller mechanism for blown films, which comprises a bearing frame, a supporting mechanism, two extrusion rollers and at least one shifting and pushing mechanism, wherein the extrusion rollers are rotationally arranged on the bearing frame; the supporting mechanism comprises two supporting units which are arranged in a relatively inclined mode, each supporting unit comprises two supporting strips and a plurality of film guide pipes, at least one film guide pipe in each supporting unit comprises a first pipe body, a second pipe body and a connecting rod, the first pipe body is rotatably arranged on the two supporting strips, and the first pipe body comprises a water inlet end and a water outlet end;
the moving and pushing mechanism comprises a moving and pushing frame, a moving and pushing rod, a cylinder body, a connecting pipe and at least one lantern ring, the lantern ring is fixedly arranged on the supporting bar, the side wall of the lantern ring is provided with a shunting hole, the cylinder body is communicated with the shunting hole through the connecting pipe, the moving and pushing rod is slidably arranged in the cylinder body and is fixedly connected with the moving and pushing frame, and the moving and pushing frame can push the extrusion roller to move;
the water outlet end of the first pipe body is connected with one end of the second pipe body through a connecting rod, one end of the second pipe body is rotatably connected with the lantern ring, the connecting rod is located at the position of the flow dividing hole, the inner side wall of the other end of the second pipe body is provided with an annular groove, a spring is connected in the annular groove, and the free end of the spring is connected with a plugging plate which is arranged in the annular groove in a sliding mode.
The technical effect of the scheme is as follows: the invention provides the self-checking and adjusting concept by automatically detecting the thickness of the film and immediately adjusting the distance between the two extrusion rollers, and effectively ensures the production quality of the film.
Specifically, after the film blowing machine blows out the tubular film, the film guide pipes in the two supporting units gradually flatten the tubular film, and when the film passes through the two squeezing rollers, the two squeezing rollers squeeze the film into a film containing two films.
The film guide pipe flattens the tubular film, meanwhile, the film is in contact with the film guide pipe, and water flowing through the film guide pipe cools the film to avoid the film from being folded; the film is contacted with the film guide pipe and simultaneously drives the film guide pipe to rotate, namely, the first pipe body, the second pipe body and the connecting rod are driven to rotate, the blocking plate removes the blocking of the second pipe body under the action of centrifugal force in the rotating process of the second pipe body, and water flowing through the first pipe body flows out through the second pipe body.
When the film blowing machine has uneven extrusion or insufficient raw materials in a spiral extrusion mechanism in a certain time period in the film blowing process, the thickness of the film can be thinned, the film is not contacted with the film guide pipe any more, the film guide pipe is in a static state in the process, the second pipe body is blocked by the blocking plate, water flowing through the first pipe body enters the cylinder body through the diversion hole and the connecting pipe, so that the moving push rod and the pushing frame are driven to move, the extrusion rollers are further pushed to move to enable the two extrusion rollers to be close together, air blown out from the film blowing machine is blocked, air is prevented from entering between the two films and generating bubbles when the thinned film passes through the two extrusion rollers, and the production quality of the film is improved.
When the material is even or the raw materials are sufficient when the thickness of the film is normal, the film guide pipe can continue to rotate, the water flowing through the first pipe body flows out through the second pipe body, the water in the barrel and the connecting pipe also flows out from the second pipe body, negative pressure is generated in the barrel during the water flowing out process in the barrel, the moving push rod and the pushing frame are driven to move in the reverse direction, so that the extrusion rollers are driven to move, the distance between the two extrusion rollers is matched with the normal thickness of the film, and the situation that the film is stretched and broken due to the fact that the two extrusion rollers clamp the film too tightly can be avoided.
Furthermore, the number of the moving and pushing mechanism is one, the number of the lantern rings included by the moving and pushing mechanism is two, and the two lantern rings are respectively fixed on one supporting strip in the two supporting units. The technical effect of the scheme is as follows: through setting up a removal and push away the mechanism, only need carry out position control to one of them squeeze roll, be favorable to improving the stability of film traction direction one side squeeze roll.
Furthermore, the diameter of the connecting rod is smaller than that of the shunt hole. The technical effect of the scheme is as follows: connecting rod shutoff reposition of redundant personnel hole when avoiding leading the stop rotation of diaphragm tube.
Furthermore, a gap exists between the connecting rod and the shunt hole. The technical effect of the scheme is as follows: the centrifugal force generated by the rotation of the connecting rod is avoided to convey water into the connecting pipe.
Furthermore, a fluorescent powder layer is coated on the outer side wall of the first tube body. The technical effect of the scheme is as follows: whether the first pipe body is convenient to manually observe rotates, and the position of the pushing frame is convenient to manually adjust in time.
Furthermore, a limiting rod for limiting the moving and pushing frame is fixed on the bearing frame. The technical effect of the scheme is as follows: is beneficial to improving the stability of the squeeze roll.
Further, still include the bearing, first body passes through the bearing and is connected with the support bar. The technical effect of the scheme is as follows: the smooth rotation of the first pipe body is guaranteed.
Drawings
FIG. 1 is a three-dimensional schematic of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the connection location of the support bar, collar, first tube and second tube.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: bear frame 1, squeeze roll 2, move and push away frame 3, move push rod 4, barrel 5, connecting pipe 6, lantern ring 7, support bar 8, first body 9, second body 10, connecting rod 11, reposition of redundant personnel hole 12, ring channel 13, shutoff board 14, gag lever post 15.
The embodiment is as follows:
the embodiment is basically as shown in the attached figures 1 and 2: the press roll mechanism for blown film shown in fig. 1 comprises a frame, a bearing frame 1, a supporting mechanism, two extrusion rolls 2 and at least one moving and pushing mechanism, wherein the bearing frame 1 is welded with the frame; the number of the moving and pushing mechanisms is one or two, and when the number of the moving and pushing mechanisms is two, the moving and pushing mechanisms are respectively positioned at the left side and the right side of the bearing frame 1; in this embodiment, the number of the moving and pushing mechanisms is one, the moving and pushing mechanisms are located on the right side of the bearing frame 1, each moving and pushing mechanism comprises a moving and pushing frame 3, a moving and pushing rod 4, a cylinder 5, a connecting pipe 6 and two lantern rings 7, and the cylinder 5 is welded on the bearing frame 1.
Bear 1 and go up to open and have rotation hole and bar groove, left squeeze roll 2 rotates and sets up in the rotation hole, and squeeze roll 2 on right side rotates and sets up in the bar groove.
The supporting mechanism comprises two supporting units which are oppositely and obliquely arranged, and each supporting unit comprises two supporting strips 8 and a plurality of film guiding pipes (downward extending parts of the supporting strips 8 and the rest film guiding pipes are omitted in figure 1). At least one membrane guide tube in every supporting unit includes as shown in fig. 2 first body 9, second body 10 and connecting rod 11, and only the membrane guide tube of the top includes first body 9, second body 10 and connecting rod 11 in this embodiment, and first body 9 passes through the bearing and rotates the setting on two support bars 8 in same supporting unit, and first body 9 is including the water inlet end that is located the left end and the water outlet end that is located the right end.
Two lantern rings 7 weld respectively on a support bar 8 in two support units, the lateral wall of lantern ring 7 is opened there is reposition of redundant personnel hole 12, barrel 5 passes through connecting pipe 6 and reposition of redundant personnel hole 12 intercommunication, the one end that moves push rod 4 slides and sets up in barrel 5, it has the sealing washer to move push rod 4 bonding, the other end that moves push rod 4 with move and push away frame 3 welding, squeeze roll 2 on right side in figure 1 with move push rod 4 and rotate and be connected, the middle part horizontal welding that moves and push away frame 3 has reset spring, reset spring's the other end and bear 1 welding, it resets to be convenient for right after moving to push away frame 3 and remove left.
As shown in fig. 2, the water outlet end of the first tube 9 and the left end of the second tube 10 are connected by a connecting rod 11, that is, the left end of the connecting rod 11 is welded to the first tube 9, the right end of the connecting rod 11 is welded to the second tube 10, the left end of the second tube 10 is rotatably disposed in the sleeve ring 7, the connecting rod 11 is located at the diversion hole 12, the diameter of the connecting rod 11 is smaller than that of the diversion hole 12, and a gap exists between the connecting rod 11 and the diversion hole 12.
An annular groove 13 is formed in the inner side wall of the right end of the second pipe body 10, a spring is welded at the bottom of the annular groove 13, a plugging plate 14 is welded at the free end of the spring, and the plugging plate 14 is arranged in the annular groove 13 in a sliding mode; of course, the shape of the hollow portion inside the second tubular body 10 may be square, i.e. a square through hole, instead of circular, in which case the shape of the annular groove 13 is not circular but square.
As shown in fig. 1, a limiting rod 15 for limiting the moving and pushing frame 3 is welded on the bearing frame 1. In addition, the connecting pipe 6 is a transparent pipe, the length of the first pipe body 9 is larger than the width of the film, a fluorescent powder layer is coated on the outer side wall of one end of the first pipe body 9, the fluorescent powder layer is convenient for manually observing whether the first pipe body 9 rotates or not, a fluorescence detector and a controller can be installed on the rack, if the first pipe body 9 does not rotate, and when the fluorescent powder layer cannot be detected by the fluorescence detector within a period of time, the fluorescence detector transmits signals to the controller to realize alarming, and a worker is reminded to adjust the distance between the two extrusion rollers 2.
Four sleeves (not shown in the figure) are further fixed on the rack through bolts, water inlet pipes are fixedly connected to two sleeves, water outlet pipes are fixedly connected to the other two sleeves, the water inlet end of the first pipe body 9 is rotatably connected with the sleeves in the figure 2, and the right end of the second pipe body 10 is rotatably connected with the other sleeve.
The specific implementation process is as follows:
after the film blowing machine blows the tubular film, the first pipe 9 in the two supporting units in fig. 1 gradually flattens the tubular film, and when the film moves leftwards through the two squeeze rollers 2, the two squeeze rollers 2 squeeze the film into a film containing two films.
The first tube 9 flattens the tubular film, meanwhile, the film is in contact with the first tube 9, and water flowing through the first tube 9 cools the film to avoid the film from wrinkling; the film drives first body 9 to rotate with the contact of first body 9 to drive second body 10 and connecting rod 11 to rotate, and the shutoff of second body 10 is relieved to second body 10 under the effect of centrifugal force to shutoff board 14 in-process that second body 10 rotated, and the water that flows through first body 9 flows out through second body 10.
When the material extrusion is inhomogeneous or the raw materials is insufficient when the inflation film manufacturing machine appears in the in-process certain time quantum spiral extrusion mechanism of blown film, the thickness of film can the attenuation, the film no longer contacts with first body 9, first body 9 is in quiescent condition in this process, because second body 10 is blocked by shutoff board 14, the water that flows through first body 9 gets into in barrel 5 after reposition of redundant personnel hole 12 and connecting pipe 6, thereby drive and move push rod 4 and pass the frame and remove, and then promote squeeze roll 2 and remove and make two squeeze roll 2 draw close, the air that blows out the inflation film manufacturing machine carries out the separation, the air gets into between two rete and produces the bubble when avoiding the film after the attenuation through two squeeze roll 2, be favorable to improving the production quality of film.
When the crowded material is even or the raw materials are sufficient, first body 9 can continue to rotate when film thickness is normal, the water that flows through first body 9 flows out through second body 10, the water in barrel 5 and the connecting pipe 6 also flows out from second body 10, produce the negative pressure in the in-process barrel 5 of the rivers play in the barrel 5, drive and move push rod 4 and pass frame antiport, thereby drive squeeze roll 2 and remove and make the distance between two squeeze rolls 2 and the normal thickness phase-match of film, the condition that two squeeze rolls 2 press from both sides the film too tightly and lead to the film to stretch out can not appear.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (5)
1. A compression roller mechanism for blown film, its characterized in that: the extrusion device comprises a bearing frame, a supporting mechanism, two extrusion rollers and at least one moving and pushing mechanism, wherein the extrusion rollers are rotatably arranged on the bearing frame; the supporting mechanism comprises two supporting units which are arranged in a relatively inclined mode, each supporting unit comprises two supporting strips and a plurality of film guide pipes, at least one film guide pipe in each supporting unit comprises a first pipe body, a second pipe body and a connecting rod, the first pipe body is rotatably arranged on the two supporting strips, and the first pipe body comprises a water inlet end and a water outlet end;
the moving and pushing mechanism comprises a moving and pushing frame, a moving and pushing rod, a cylinder body, a connecting pipe and at least one lantern ring, the lantern ring is fixedly arranged on the supporting bar, the side wall of the lantern ring is provided with a shunting hole, the cylinder body is communicated with the shunting hole through the connecting pipe, the moving and pushing rod is slidably arranged in the cylinder body and is fixedly connected with the moving and pushing frame, and the moving and pushing frame can push the extrusion roller to move;
the water outlet end of the first pipe body is connected with one end of the second pipe body through a connecting rod, one end of the second pipe body is rotatably connected with the lantern ring, the connecting rod is positioned at the position of the diversion hole, the inner side wall of the other end of the second pipe body is provided with an annular groove, a spring is connected in the annular groove, and the free end of the spring is connected with a plugging plate which is slidably arranged in the annular groove; the diameter of the connecting rod is smaller than that of the shunting hole, and a gap exists between the connecting rod and the shunting hole.
2. A roller mechanism for blown film according to claim 1 wherein: the number of the moving and pushing mechanisms is one, the number of the lantern rings included by the moving and pushing mechanisms is two, and the two lantern rings are respectively fixed on one supporting strip in the two supporting units.
3. A roller mechanism for blown film according to claim 1 wherein: the outer side wall of the first tube body is coated with a fluorescent powder layer.
4. A roller mechanism for blown film according to claim 3 wherein: the bearing frame is fixed with a limiting rod for limiting the moving and pushing frame.
5. A roller mechanism for blown film according to claim 4 wherein: still include the bearing, first body passes through the bearing and is connected with the support bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550188.9A CN112793141B (en) | 2020-12-24 | 2020-12-24 | Compression roller mechanism for blown film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550188.9A CN112793141B (en) | 2020-12-24 | 2020-12-24 | Compression roller mechanism for blown film |
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| Publication Number | Publication Date |
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| CN112793141A CN112793141A (en) | 2021-05-14 |
| CN112793141B true CN112793141B (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011550188.9A Active CN112793141B (en) | 2020-12-24 | 2020-12-24 | Compression roller mechanism for blown film |
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| CN (1) | CN112793141B (en) |
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| CN112793141A (en) | 2021-05-14 |
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