A film blowing device for PE heat shrinkable film processing and production and a method of using the same

Abstract

The invention is applicable to the technical field of post-molding processing of shrinkage films, and provides a film blowing device for processing and producing PE heat shrinkage films and a use method thereof, comprising a film blowing component, a positioning component being slidably arranged on the film blowing component, the film blowing component comprising a conveying member, a tensioning member slidably fitted on the conveying member, and a film blowing member reciprocatingly slidably fitted inside the conveying member. The device can realize a cooling process during the use of the entire device, and avoid the film blowing member always being at the same position to cool the formed PE heat shrinkage film by blowing the film, and can prevent the residual temperature on the surface of the formed PE heat shrinkage film, causing the formed PE heat shrinkage film to adhere to the transmission roller, the tensioning member and the winding roller of the forming and winding device, thereby damaging the formed PE heat shrinkage film, so that the entire film blowing cooling process can be more evenly blown to the surface of the formed PE heat shrinkage film, thereby increasing the film blowing cooling effect.

Description

Technical Field

[0001] The invention relates to the technical field of post-molding processing of shrinkage films, and more specifically, to a film blowing device for processing and producing PE heat shrinkage films and a use method thereof. Background Art

[0002] PE heat shrink film is commonly known as shrink film. It is a film that can shrink significantly after being heated, so it can wrap objects tightly and maintain its shape for a long time. The heat shrink film is designed based on the principle of stretching and directional polymer molecular chains and is formed by rapid cooling and shaping. PE heat shrink film has high impact resistance and high heat sealing strength after processing. It is mainly used for packaging of bottled beverages and other heavy items, such as collective packaging of alcoholic beverages, cans, and mineral water, and can partially replace carton packaging.

[0003] At present, the film blowing equipment for PE heat shrink film processing and production on the market has the following technical problems during use:

[0004] In the cooling process of the existing equipment, the film blowing parts on the equipment are mostly fixed. During its use, the film blowing parts are always in the same position to blow and cool the formed PE heat shrinkable film. It is easy for the wind direction to be unable to change during the film blowing process, resulting in the entire film blowing cooling process. The surface of the formed PE heat shrinkable film cannot be blown more evenly, reducing the film blowing cooling effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a PE heat shrink film forming and processing equipment, a PE heat shrink film processing and production blown film equipment, and a forming and winding equipment, which can realize the cooling process during the use of the equipment, so as to avoid damage to the formed PE heat shrink film when the blown film parts are always in the same position to blow the formed PE heat shrink film to cool it down, so that the entire blown film cooling process can be more evenly blown to the surface of the formed PE heat shrink film, thereby increasing the effect of blowing film cooling. A kind of PE heat shrink film processing and production blown film equipment and a method of use.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A film blowing device for processing and producing PE heat shrinkable film comprises a film blowing assembly on which a positioning assembly is slidably arranged. The film blowing assembly comprises a conveying member, a tensioning member slidably fitted on the conveying member, and a film blowing member reciprocatingly slidably fitted inside the conveying member.

[0008] The conveying member includes a bottom plate, L-shaped vertical plates are fixed on two opposite sides of the bottom plate, vertical grooves are penetrated through the two L-shaped vertical plates on one opposite side, elastic springs are fixed on the tops of the two vertical grooves, two U-shaped plates are symmetrically fixed on the top of the bottom plate, two arc-shaped plates are symmetrically fixed between the two U-shaped plates, arc-shaped grooves are penetrated through one side of the two arc-shaped plates, and transmission rollers are fixed on the inner walls of the two U-shaped plates near the tops.

[0009] A driving motor is fixed at the center position of the top of the bottom plate, a rotating cylinder is fixed to the output shaft of the driving motor, and a plurality of grooves are provided on the outer top of the rotating cylinder in a circular array.

[0010] The film blowing component comprises an I-shaped slide plate which is slidably matched between two vertical grooves, and the top of the I-shaped slide plate is fixedly connected to the bottom of the elastic spring.

[0011] A T-shaped vertical plate is fixed at the center of the bottom of the I-shaped slide, a center plate is fixed at the bottom of the T-shaped vertical plate, a plurality of vertical rods are fixed at the bottom of the center plate in a circular array, and contact balls matching the plurality of grooves are fixed at the bottom of the plurality of vertical rods.

[0012] The present invention is further configured as follows: two symmetrical first side plates are fixed on one side of the I-shaped skateboard, a first rotating shaft is fixed to the opposite side of the two first side plates, a first rotating arm is fixed to the circumferential side of the two first rotating shafts, a second rotating shaft is rotatably matched with the opposite side of the two first rotating arms, a first connecting plate is fixed to the opposite end surface of the two second rotating shafts, and a first arc-shaped slider that slides and fits inside the arc-shaped groove is fixed to the top of the two first connecting plates.

[0013] A first circulation pipe is fixed between the two first arc-shaped sliders, and two symmetrical first blowing grooves are opened through the outer peripheral side of the first circulation pipe. One side of the first arc-shaped slider is connected to a first air intake shell, and a first driving motor is fixed to an outer side of the first air intake shell. The output shaft of the first driving motor is located inside the first air intake shell and a first blowing fan is fixed thereto.

[0014] The present invention is further configured as follows: the I-shaped slide plate is fixed with two symmetrical second side plates relative to the other side, the two second side plates are fixed with a third rotating shaft relative to one side, the two third rotating shafts are fixed with second rotating arms around the side surfaces, the two second rotating arms are rotatably matched with a fourth rotating shaft relative to one side, the two fourth rotating shafts are fixed with a second connecting plate relative to one end surface, and the tops of the two second connecting plates are fixed with a second arc-shaped slider that slides and fits inside the arc-shaped groove.

[0015] A second circulation pipe is fixed between the two second arc-shaped sliders, and two symmetrical second blowing grooves are opened through the outer peripheral side of the second circulation pipe. One side of the second arc-shaped slider is connected to a second air intake shell, and a second driving motor is fixed to an outer side of the second air intake shell. The output shaft of the second driving motor is located inside the second air intake shell and a second blowing fan is fixed thereto.

[0016] The present invention is further configured as follows: guide rods which are sleeved and fitted inside the elastic springs are fixed inside the two vertical grooves.

[0017] The top of the I-shaped slide plate is provided with two symmetrical sliding holes, and the two sliding holes are respectively slidably matched with the two guide rods.

[0018] The present invention is further configured as follows: a sliding groove is provided on an outer side surface of the two L-shaped vertical plates above the vertical groove, and a vertical groove is provided on two side surfaces of the two L-shaped vertical plates.

[0019] A U-shaped base plate is fixed at the bottom of the two sliding grooves, an L-shaped support plate is fixed at the top of the two U-shaped base plates, a threaded column is fixed at the outer top of the two L-shaped support plates, a transverse groove is opened on the inner side surface opposite to the U-shaped base plate, a transverse guide rod is fixed inside the two transverse grooves, a reset spring which is sleeved on the transverse guide rod is fixed inside the two transverse grooves, and an inclined baffle is fixed inside the two U-shaped base plates.

[0020] The present invention is further configured as follows: the tensioning member includes two T-shaped sliders respectively slidably fitted in the sliding groove, two symmetrical tension rollers are fixed between the two T-shaped sliders, and hinge seats are fixed to opposite sides of the two T-shaped sliders.

[0021] The present invention is further configured as follows: a lower pressure arm is rotatably fitted inside the two articulated seats, a pin is rotatably fitted on one side of the two lower pressure arms, two symmetrical guide holes are penetrated through the circumferential side surface of the pin, the two guide holes are respectively slidably fitted with two transverse guide rods, and the circumferential side surface of the pin is fixedly connected to one end of the two return springs.

[0022] The present invention is further configured as follows: the positioning assembly includes two symmetrical V-shaped plates, two symmetrical plug-in plates are fixed at the bottom of the two V-shaped plates, the two plug-in plates are slidably matched with the two vertical grooves, a horizontal plate is commonly fixed at the top of the two V-shaped plates, an L-shaped pressure plate is fixed at the bottom of the two V-shaped plates, the inner bottom of the two L-shaped pressure plates are penetrated by plug-in holes that are plug-fitted on the threaded columns, the outer bottom of the L-shaped pressure plates are fixed with connecting blocks, the bottom of the two connecting blocks are fixed with downward pressure rods, and the top of the horizontal plate is fixed with a U-shaped handle.

[0023] A method for using a film blowing device for processing and producing a PE heat shrinkable film, including the following methods:

[0024] T1. During use, the entire device can be set up between the PE heat shrinkable film forming and processing equipment and the forming and winding equipment. After the setting is completed, the initial end of the PE heat shrinkable film formed in the PE heat shrinkable film forming and processing equipment is passed through the entire PE heat shrinkable film processing and production blown film equipment, and finally the initial end of the formed PE heat shrinkable film is sleeved and fixed on the surface of the winding roller of the forming and winding equipment to carry out the processing of the formed PE heat shrinkable film, film blowing cooling and winding after cooling.

[0025] T2. Before use, the starting end of the PE heat shrinkable film that has been processed and formed in the PE heat shrinkable film forming and processing equipment is passed through the bottom of a transmission roller, the entire tensioning member, and the bottom of another transmission roller in turn, and finally wound on the surface of the winding roller of the forming and winding equipment. After the above winding is completed, the formed PE heat shrinkable film that has passed through the bottom of a transmission roller, the entire tensioning member, and the bottom of another transmission roller in turn can be blown and cooled, and the tension in the forming and winding process can be adjusted.

[0026] T3. During the tension adjustment process, the two plug-in plates fixed at the bottom of the two V-shaped plates in the entire positioning assembly are slid and plugged into the vertical grooves opened on the opposite sides of the two L-shaped vertical plates in turn. Through the contact process of the lower pressure rod and the lower pressure arm rotating between the hinge seat and the pin shaft, an oblique downward pressure is applied to the two lower pressure arms, so that the return spring connected and fixed to the transverse groove and the side surface of the pin shaft is compressed, so that the lower pressure arm is rotated from an oblique state to a vertical state, driving the entire tensioning member to move upward, thereby completing the tension straightening adjustment of the formed PE heat shrink film.

[0027] After the steps between T4 and T1 to T3 are completed, the entire PE heat shrink film processing and production blowing equipment begins to be used in conjunction with the PE heat shrink film forming processing equipment and the forming and winding equipment. During use, the first drive motor and the second drive motor are started at the same time, so that the first blowing fan and the second blowing fan fixed on the output shafts of the first drive motor and the second drive motor inside the first air inlet shell and the second air inlet shell rotate. During the rotation, the wind force generated passes through the first flow pipe and the second flow pipe fixed between the two first arc-shaped sliders in turn and is blown out from the first blowing slot and the second blowing slot, thereby completing the film blowing cooling process.

[0028] T5. During the film blowing and cooling process in T, the driving motor is started to rotate the rotating cylinder. When the rotating cylinder rotates, a number of contact balls matched with a number of grooves opened on the top of the rotating cylinder begin to gradually slide from the bottom of the groove toward the outer top of the rotating cylinder and slide into the bottom of the groove, thereby reciprocating and driving the I-shaped slide plate to reciprocate up and down between the two vertical grooves.

[0029] T6. When the I-shaped slide plate moves up and down reciprocatingly between the two vertical grooves, the first rotating arm rotatingly cooperates with the first rotating shaft and the second rotating shaft, and starts to cooperate with the second rotating arm rotatingly cooperated on the peripheral side of the third rotating shaft and the fourth rotating shaft to perform relative expansion and contraction, thereby driving the first flow tube fixed between the two first arc-shaped sliders and the second flow tube fixed between the two second arc-shaped sliders to perform reciprocating movements of moving away from and approaching each other inside the arc-shaped grooves penetrated through one side of the two arc plates, thereby preventing the film blowing part from always being in the same position to blow and cool the formed PE heat shrink film, causing damage to the formed PE heat shrink film, so that the entire film blowing and cooling process can be more evenly blown to the surface of the formed PE heat shrink film, thereby increasing the film blowing and cooling effect.

[0030] The advantages of the present invention are:

[0031] 1. The present invention realizes the cooling process of PE heat shrink film forming and processing equipment, PE heat shrink film processing and production blown film equipment, and forming and winding equipment during use through the blowing process of wind from the first blowing slot and the second blowing slot, thereby preventing the residual temperature on the surface of the formed PE heat shrink film from causing the formed PE heat shrink film to adhere to the transmission roller, the tensioning member and the winding roller of the forming and winding equipment, thereby avoiding damage to the processed PE heat shrink film.

[0032] 2. The present invention drives the first rotating arm and the second rotating arm to expand and contract relative to each other through the reciprocating up and down movement of the entire film blowing component inside the conveying component, so that the first flow tube fixed between the two first arc-shaped sliders and the second flow tube fixed between the two second arc-shaped sliders reciprocate to move away from and approach each other inside the arc-shaped grooves penetrated through one side of the two arc-shaped plates, thereby realizing the cooling process during the use of PE heat shrinkable film forming and processing equipment, PE heat shrinkable film processing and production blown film equipment, and forming and winding equipment, avoiding damage to the formed PE heat shrinkable film when the film blowing component always blows and cools the formed PE heat shrinkable film at the same position, so that the entire film blowing and cooling process can be more evenly blown to the surface of the formed PE heat shrinkable film, thereby increasing the film blowing and cooling effect.

[0033] 3. The present invention drives the entire tensioning member to move upward during the sliding plug-in installation process of the entire positioning component, thereby adjusting the tension of the PE heat shrink film that has passed through the two tension rollers and has been formed, preventing it from wrinkling during the subsequent film blowing cooling and winding process, thereby avoiding a certain impact on the quality of the formed PE heat shrink film. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1It is a structural schematic diagram of a film blowing device for processing and producing PE heat shrinkable film according to the present invention.

[0035] Figure 2 It is a front view of a film blowing device for producing PE heat shrinkable film according to the present invention.

[0036] Figure 3 It is a schematic structural diagram of the film blowing assembly of the present invention.

[0037] Figure 4 It is a structural schematic diagram of the positioning component of the present invention.

[0038] Figure 5 It is a schematic structural diagram of the conveying member of the present invention.

[0039] Figure 6 It is a front view of the conveying member of the present invention.

[0040] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0041] Figure 8 It is a schematic structural diagram of the tensioning member of the present invention.

[0042] Fig. 9 It is a schematic structural diagram of the film blowing component of the present invention.

[0043] Fig.10 It is a front view of the film blowing part of the present invention.

[0044] Fig.11 It is a schematic diagram of the cross-sectional structure at another angle of the film blowing part of the present invention.

[0045] Fig.12 For the present invention Fig.11 Front view of .

[0046] In the figure: 1, film blowing assembly; 2, positioning assembly; 3, conveying member; 4, tensioning member; 5, film blowing member; 201, V-shaped plate; 202, plug-in plate; 203, transverse plate; 204, L-shaped pressure plate; 205, plug-in hole; 206, connecting block; 207, lower pressure rod; 301, bottom plate; 302, L-shaped vertical plate; 303, vertical groove; 304, elastic spring; 305, U-shaped plate; 306, arc plate; 307, arc groove; 308, transmission roller; 309, drive motor; 310, rotating cylinder; 311, groove; 312, guide rod; 313, sliding groove; 314, vertical groove; 315, U-shaped base plate; 316, L-shaped support plate; 317, threaded column; 318, transverse groove; 319, transverse guide rod; 320, reset spring; 321, oblique baffle; 401, T-shaped slider; 402, tension roller; 403, hinge seat; 404, lower pressure arm; 405, pin; 406, guide hole; 501, I-shaped slide plate; 502, T-shaped vertical plate; 503, center plate; 504, vertical rod; 505, contact ball; 506, first side plate; 507, first rotating shaft; 508, first rotating arm; 509, second rotating shaft; 510, first connecting plate; 511, first arc-shaped slide block; 512, first flow pipe; 513, first blowing slot; 5 14. First air inlet shell; 515. First drive motor; 516. First blowing fan; 517. Second side plate; 518. Third rotating shaft; 519. Second rotating arm; 520. Fourth rotating shaft; 521. Second connecting plate; 522. Second arc-shaped slider; 523. Second flow pipe; 524. Second blowing slot; 525. Second air inlet shell; 526. Second drive motor; 527. Second blowing fan; 528. Sliding hole. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0049] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0050] For example, see Figure 1-12 , the present invention provides the following technical solutions:

[0051] A film blowing device for processing and producing PE heat shrinkable film, specifically, comprising a film blowing component 1, a positioning component 2 is slidably arranged on the film blowing component 1, the film blowing component 1 comprises a conveying member 3, a tensioning member 4 slidably fitted on the conveying member 3, and a film blowing member 5 reciprocatingly slidably fitted inside the conveying member 3; the conveying member 3 comprises a bottom plate 301, L-shaped vertical plates 302 are fixed on opposite sides of the bottom plate 301, vertical grooves 303 are penetrated through opposite sides of the two L-shaped vertical plates 302, elastic springs 304 are fixed on the tops of the two vertical grooves 303, two U-shaped plates 305 are symmetrically fixed on the top of the bottom plate 301, two arc plates 306 are symmetrically fixed between the two U-shaped plates 305, and arc grooves 307 are penetrated through one side of the two arc plates 306. , a transmission roller 308 is fixed to the inner wall of the two U-shaped plates 305 near the top; a driving motor 309 is fixed to the center position of the top of the bottom plate 301, and a rotating cylinder 310 is fixed to the output shaft of the driving motor 309, and a plurality of grooves 311 are provided on the outer top of the rotating cylinder 310 in a circular array; the film blowing part 5 includes an I-shaped slide plate 501 that is slidably fitted between the two vertical grooves 303, and the top of the I-shaped slide plate 501 is fixedly connected to the bottom of the elastic spring 304; a T-shaped vertical plate 502 is fixed to the bottom of the T-shaped vertical plate 502, and a center disk 503 is fixed to the bottom of the center disk 503, and a plurality of vertical rods 504 are fixed to the bottom of the center disk 503 in a circular array, and the bottoms of the plurality of vertical rods 504 are all fixed with contact members that match the plurality of grooves 311 Ball 505; Two symmetrical first side plates 506 are fixed on one side of the I-shaped slide plate 501, and the first rotating shaft 507 is fixed on the opposite side of the two first side plates 506, and the first rotating arms 508 are fixed on the peripheral sides of the two first rotating shafts 507. The two first rotating arms 508 are rotatably matched with the second rotating shaft 509 on the opposite side, and the first connecting plates 510 are fixed on the opposite end faces of the two second rotating shafts 509. The tops of the two first connecting plates 510 are fixed with first arcuate sliders 511 that slide and fit inside the arc groove 307; A first flow pipe 512 is fixed between the two first arcuate sliders 511, and the outer peripheral side of the first flow pipe 512 is penetrated by two symmetrical first blowing grooves 513, and one side of the first arcuate slider 511 is connected to A first air inlet shell 514, a first drive motor 515 is fixed to an outer side of the first air inlet shell 514, the output shaft of the first drive motor 515 is located inside the first air inlet shell 514 and a first blowing fan 516 is fixed thereto; two symmetrical second side plates 517 are fixed to the other side of the I-shaped slide plate 501, a third rotating shaft 518 is fixed to the opposite side of the two second side plates 517, a second rotating arm 519 is fixed to the circumferential side of the two third rotating shafts 518, the two second rotating arms 519 are rotatably matched with the opposite side of the two second rotating arms 519, a second connecting plate 521 is fixed to the opposite end surface of the two fourth rotating shafts 520, and a second arc-shaped slider 522 slidably matched in the arc-shaped groove 307 is fixed to the top of the two second connecting plates 521;A second flow pipe 523 is fixed between the two second arc-shaped sliders 522. Two symmetrical second blowing grooves 524 are formed on the outer peripheral side of the second flow pipe 523. A second air inlet shell 525 is connected to one side of the second arc-shaped slider 522. A second driving motor 526 is fixed to an outer side of the second air inlet shell 525. The output shaft of the second driving motor 526 is located inside the second air inlet shell 525 and a second blowing fan 527 is fixed thereto.

[0052] The specific application of this embodiment 1 is:

[0053] Before use, the starting end of the PE heat shrinkable film that has been processed and formed in the PE heat shrinkable film forming and processing equipment is sequentially passed through the bottom of a transmission roller 308, the entire tensioning member 4, and the bottom of another transmission roller 308, and finally wound on the surface of the winding roller of the forming and winding equipment. After the above winding is completed, the formed PE heat shrinkable film that has sequentially passed through the bottom of a transmission roller 308, the entire tensioning member 4, and the bottom of another transmission roller 308 can be subjected to film blowing cooling and tension adjustment during the forming and winding process;

[0054] After the tension adjustment is completed, the entire device begins to be used in conjunction with the PE heat shrink film forming processing equipment and the forming and winding equipment. During use, the driving motor 309 fixed at the top center position of the bottom plate 301 is started to rotate the rotating cylinder 310 fixed by the output shaft of the driving motor 309. When the rotating cylinder 310 rotates, the contact balls 505 that are adapted to the grooves 311 opened at the top of the rotating cylinder 310 gradually begin to slide from the inner bottom of the grooves 311 toward the outer top of the rotating cylinder 310, and slide into the inner bottom of the grooves 311 to reciprocate, so that the center disk 503 generates an up and down reciprocating sliding force during the use of the entire device, driving the T-shaped vertical plate 502 fixed at the top center position of the center disk 503 and the I-shaped slide plate 501 fixed at the top of the T-shaped vertical plate 502 to reciprocate up and down between the two vertical grooves 303, thereby realizing the reciprocating up and down movement process of the entire blown film part 5 inside the conveying part 3;

[0055] When the entire film blowing member 5 reciprocates up and down inside the conveying member 3, the first driving motor 515 and the second driving motor 526 are started at the same time, so that the first blowing fan 516 and the second blowing fan 527 fixed to the output shafts of the first driving motor 515 and the second driving motor 526 inside the first air inlet shell 514 and the second air inlet shell 525 rotate. During the rotation process, the wind force generated passes through the first circulation pipe 512 and the second circulation pipe 523 fixed between the two first arc-shaped sliders 511 and blows out from the first blowing groove 513 and the second blowing groove 524 in turn, so as to realize the cooling process during the use of the PE heat shrink film forming and processing equipment, the film blowing equipment for PE heat shrink film processing and production, and the forming and winding equipment, so as to prevent the residual temperature on the surface of the formed PE heat shrink film, causing the formed PE heat shrink film to adhere to the transmission roller 308, the tensioning member 4 and the winding roller of the forming and winding equipment, so as to avoid damage to the processed and formed PE heat shrink film;

[0056] During the above film blowing process, as the entire film blowing member 5 moves back and forth up and down inside the conveying member 3, the elastic force of the elastic spring 304 connected and fixed between the vertical groove 303 and the I-shaped slide plate 501 can be combined to assist the entire film blowing member 5 to move back and forth up and down inside the conveying member 3. When the entire film blowing member 5 moves back and forth up and down inside the conveying member 3, the first rotating arm 508 rotatingly matched between the first rotating shaft 507 and the second rotating shaft 509 begins to rotate and match the second rotating arm 519 rotating and matching the side surfaces of the third rotating shaft 518 and the fourth rotating shaft 520 to perform relative expansion and relative contraction, thereby driving the two first arc-shaped slide blocks 511 to move between each other. The fixed first circulation tube 512 and the second circulation tube 523 fixed between the two second arc-shaped sliders 522 perform reciprocating movements of moving away from and approaching each other inside the arc-shaped groove 307 penetrated through one side of the two arc-shaped plates 306, thereby realizing a cooling process during the use of the PE heat shrinkable film forming and processing equipment, the film blowing equipment for PE heat shrinkable film processing and production, and the forming and winding equipment, thereby preventing the film blowing component 5 from always being at the same position to blow and cool the formed PE heat shrinkable film, thereby preventing the formed PE heat shrinkable film from being damaged, and allowing the entire film blowing and cooling process to be more evenly blown to the surface of the formed PE heat shrinkable film, thereby increasing the film blowing and cooling effect.

[0057] For example 2, please refer to Figure 1-12The second embodiment is improved on the basis of the first embodiment as follows. Specifically, the two vertical grooves 303 are fixed with guide rods 312 sleeved and matched inside the elastic spring 304; the top of the I-shaped slide plate 501 is provided with two symmetrical sliding holes 528, and the two sliding holes 528 are respectively slidably matched with the two guide rods 312; the two L-shaped vertical plates 302 are provided with sliding grooves 313 on the opposite outer side surface above the vertical grooves 303, and the two L-shaped vertical plates 302 are provided with vertical grooves 314 on the opposite sides; the bottom of the two sliding grooves 313 is fixed with a U-shaped base plate 31 5. The top of the two U-shaped base plates 315 is fixed with an L-shaped support plate 316, and the outer top of the two L-shaped support plates 316 is fixed with a threaded column 317. The U-shaped base plate 315 has a transverse groove 318 on the inner side opposite to the inner side. The two transverse grooves 318 are fixed with transverse guide rods 319, and the two transverse grooves 318 are fixed with return springs 320 sleeved on the transverse guide rods 319. The two U-shaped base plates 315 are fixed with oblique baffles 321. The tensioning member 4 includes two T-shaped sliders 40 respectively slidably fitted in the sliding grooves 313. 1. Two symmetrical tension rollers 402 are fixed between the two T-shaped sliders 401. The two T-shaped sliders 401 are fixed with hinge seats 403 on opposite sides. The two hinge seats 403 are rotatably matched with lower pressure arms 404. The two lower pressure arms 404 are rotatably matched with pins 405 on one side. The pins 405 are symmetrically provided with two guide holes 406 on the side surface. The two guide holes 406 are respectively slidably matched with the two transverse guide rods 319. The pins 405 are fixedly connected with one end of the two return springs 320 on the side surface. The positioning assembly 2 includes two symmetrical V-shaped plates 201 Two symmetrical plug-in plates 202 are fixed at the bottom of the two V-shaped plates 201, and the two plug-in plates 202 are slidably matched with the two vertical grooves 314. A horizontal plate 203 is fixed to the top of the two V-shaped plates 201. An L-shaped pressing plate 204 is fixed to the bottom of the two V-shaped plates 201. The inner bottom of the two L-shaped pressing plates 204 are penetrated by plug-in holes 205 that are plugged into the threaded column 317. A connecting block 206 is fixed to the outer bottom of the L-shaped pressing plate 204. A lower pressing rod 207 is fixed to the bottom of the two connecting blocks 206, and a U-shaped handle is fixed to the top of the horizontal plate 203.

[0058] The specific application of this second embodiment is:

[0059] During use, the entire device can be erected between the PE heat shrink film forming and processing equipment and the forming and winding equipment. After the erection is completed, the initial end of the PE heat shrink film formed in the PE heat shrink film forming and processing equipment is passed through the entire PE heat shrink film processing and production blown film equipment, and finally the initial end of the formed PE heat shrink film is sleeved and fixed on the surface of the winding roller of the forming and winding equipment to perform the processing, blown film cooling and cooling and winding process of the formed PE heat shrink film (the PE heat shrink film forming and processing equipment and the forming and winding equipment mentioned above are existing equipment and prior art, which are not drawn in the figure and will not be elaborated here);

[0060] During use, after the formed PE heat shrink film passes through the two tension rollers 402 fixed between the two T-shaped sliders 401, the two plug-in plates 202 fixed at the bottom of the two V-shaped plates 201 in the entire positioning component 2 are slid and plugged into the vertical grooves 314 opened on the two opposite sides of the two L-shaped vertical plates 302 in sequence. During the sliding and plugging process, as the entire positioning component 2 moves downward, the two L-shaped pressing plates 204 in the positioning component 2 also descend. During the descent of the two L-shaped pressing plates 204, the connecting blocks 206 fixed at the bottom of the two L-shaped pressing plates 204 and the lower pressing rods 207 fixed at the bottom of the two connecting blocks 206 will gradually rotate and cooperate with the hinge seat 403. The two lower pressure arms 404 gradually contact with the pin shaft 405, and at the same time give the two lower pressure arms 404 an oblique downward pressure, driving the two guide holes 406 penetrated through the side surface of the pin shaft 405 to slide on the transverse guide rods 319 fixed in the two transverse grooves 318. During the sliding process, the return spring 320 connected and fixed to the transverse groove 318 and the side surface of the pin shaft 405 can be compressed, so that the pin shaft 405 gradually approaches one outer side surface of the L-shaped vertical plate 302. During the process of approaching each other, the two lower pressure arms 404 respectively rotated and matched between the two hinge seats 403 and the two pin shafts 405 begin to gradually rotate from an oblique state to a vertical state, thereby driving the tensioning member 4 The two hinged seats 403 in the movable tensioning member 4 start to move upward together. When the two hinged seats 403 in the movable tensioning member 4 start to move upward together, the two T-shaped sliders 401 in the tensioning member 4 will respectively slide upward inside the sliding groove 313 opened above the vertical groove 303 on the opposite outer side of the two L-shaped vertical plates 302, thereby driving the two tension rollers 402 in the tensioning member 4 to move upward together, until the two lower pressing arms 404 rotatingly engaged between the two hinged seats 403 and the two pin shafts 405 are respectively fitted with the two oblique baffles 321 respectively fixed inside the two U-shaped base plates 315. At this time, the plug-in holes 205 respectively opened through the bottom of the two L-shaped pressing plates 204 will finally be respectively plugged into and engaged with the two L-shaped support plates 315. 6, until the outer bottom of the two L-shaped pressing plates 204 and the outer top of the two L-shaped supporting plates 316 are fitted with each other, the downward sliding and plugging process of the positioning component 2 is stopped, and the two threaded columns 317 are threadedly fixed by the external nuts. During the sliding and plugging installation process of the entire positioning component 2, only the downward sliding and plugging process of the positioning component 2 is required to drive the entire tensioning member 4 to move upward, thereby adjusting the tension of the PE heat shrink film that has passed through the two tension rollers 402 and has been formed, so as to prevent it from wrinkling during the subsequent film blowing cooling and winding process, and avoid a certain impact on the quality of the formed PE heat shrink film.

[0061] Embodiment 3, a method for using a film blowing device for processing and producing a PE heat shrinkable film, comprising the following method of use:

[0062] T1. During use, the entire device can be set up between the PE heat shrink film forming and processing equipment and the forming and winding equipment. After the setting is completed, the initial end of the PE heat shrink film formed in the PE heat shrink film forming and processing equipment is passed through the entire PE heat shrink film processing and production blown film equipment, and finally the initial end of the formed PE heat shrink film is sleeved and fixed on the surface of the winding roller of the forming and winding equipment, so as to carry out the processing, blowing and cooling of the formed PE heat shrink film and the winding process after cooling;

[0063] T2. Before use, the starting end of the PE heat shrinkable film that has been processed and formed in the PE heat shrinkable film forming and processing equipment is sequentially passed through the bottom of a transmission roller 308, the entire tensioning member 4, and the bottom of another transmission roller 308, and finally wound on the surface of the winding roller of the forming and winding equipment. After the above winding is completed, the formed PE heat shrinkable film that has sequentially passed through the bottom of a transmission roller 308, the entire tensioning member 4, and the bottom of another transmission roller 308 can be subjected to film blowing cooling and tension adjustment during the forming and winding process;

[0064] T3, during the tension adjustment process, the two plug-in plates 202 fixed at the bottom of the two V-shaped plates 201 in the entire positioning assembly 2 are slid and plugged into the vertical grooves 314 opened on the two opposite sides of the two L-shaped vertical plates 302 in sequence, and through the contact process between the lower pressure rod 207 and the lower pressure arm 404 rotating between the hinge seat 403 and the pin 405, an oblique downward downward pressure is applied to the two lower pressure arms 404, so that the return spring 320 connected and fixed to the transverse groove 318 and the side surface of the pin 405 is compressed, so that the lower pressure arm 404 is rotated from an oblique state to a vertical state, driving the entire tensioning member 4 to move upward, thereby completing the tension adjustment of the formed PE heat shrink film;

[0065] After the steps between T4 and T1 to T3 are completed, the entire PE heat shrink film processing and production blown film equipment begins to be used in conjunction with the PE heat shrink film forming and processing equipment and the forming and winding equipment. During use, the first drive motor 515 and the second drive motor 526 are started at the same time, so that the first blowing fan 516 and the second blowing fan 527 fixed on the output shafts of the first drive motor 515 and the second drive motor 526 inside the first air inlet shell 514 and the second air inlet shell 525 rotate. During the rotation process, the generated wind force passes through the first flow pipe 512 and the second flow pipe 523 fixed between the two first arc-shaped sliders 511 in turn and is blown out from the first blowing slot 513 and the second blowing slot 524, thereby completing the film blowing cooling process;

[0066] T5, when the film blowing and cooling process in T5 is being performed, the driving motor 309 is started to rotate the rotating cylinder 310. When the rotating cylinder 310 is rotating, a plurality of contact balls 505 adapted to a plurality of grooves 311 provided on the top of the rotating cylinder 310 gradually begin to slide from the inner bottom of the groove 311 toward the outer top of the rotating cylinder 310, and slide into the inner bottom of the groove 311, thereby reciprocating, and driving the I-shaped slide plate 501 to reciprocate up and down between the two vertical grooves 303;

[0067] T6. When the I-shaped slide plate 501 moves up and down reciprocatingly between the two vertical grooves 303, the first rotating arm 508 rotatingly cooperates with the first rotating shaft 507 and the second rotating shaft 509, and starts to cooperate with the second rotating arm 519 rotatingly cooperated on the side surfaces of the third rotating shaft 518 and the fourth rotating shaft 520 to perform relative expansion and contraction, thereby driving the first flow tube 512 fixed between the two first arc-shaped sliders 511 and the second flow tube 523 fixed between the two second arc-shaped sliders 522 to perform reciprocating movements of moving away from and approaching each other inside the arc-shaped groove 307 penetrating through one side of the two arc-shaped plates 306, so as to avoid damage to the formed PE heat shrinkable film when the film blowing component 5 is always in the same position for blowing and cooling the formed PE heat shrinkable film, so that the entire film blowing and cooling process can be more evenly blown to the surface of the formed PE heat shrinkable film, thereby increasing the film blowing and cooling effect.

[0068] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0069] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0070] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0072] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A film blowing device for processing and producing a PE heat shrinkable film, comprising a film blowing component (1), a positioning component (2) being slidably arranged on the film blowing component (1), characterized in that: The film blowing assembly (1) comprises a conveying member (3), a tensioning member (4) slidably engaged with the conveying member (3), and a film blowing member (5) reciprocatingly slidably engaged inside the conveying member (3); The conveying member (3) comprises a bottom plate (301), L-shaped vertical plates (302) are fixed to two opposite side surfaces of the bottom plate (301), vertical grooves (303) are penetrated through one opposite side surface of the two L-shaped vertical plates (302), elastic springs (304) are fixed to the top of the two vertical grooves (303), two U-shaped plates (305) are symmetrically fixed to the top of the bottom plate (301), two arc-shaped plates (306) are symmetrically fixed between the two U-shaped plates (305), arc-shaped grooves (307) are penetrated through one side of the two arc-shaped plates (306), and transmission rollers (308) are fixed to the inner walls of the two U-shaped plates (305) near the top; A driving motor (309) is fixed at the center of the top of the bottom plate (301); a rotating cylinder (310) is fixed to the output shaft of the driving motor (309); and a plurality of grooves (311) are formed in a circular array on the outer top of the rotating cylinder (310); The film blowing component (5) comprises an I-shaped slide plate (501) slidably fitted between two vertical grooves (303), and the top of the I-shaped slide plate (501) is fixedly connected to the bottom of the elastic spring (304); A T-shaped vertical plate (502) is fixed at the center of the bottom of the I-shaped slide plate (501), a center plate (503) is fixed at the bottom of the T-shaped vertical plate (502), a plurality of vertical rods (504) are fixed in a circular array at the bottom of the center plate (503), and contact balls (505) adapted to the plurality of grooves (311) are fixed at the bottom of the plurality of vertical rods (504); Two symmetrical first side plates (506) are fixed on one side of the I-shaped slide plate (501); a first rotating shaft (507) is fixed to the opposite side of the two first side plates (506); a first rotating arm (508) is fixed to the peripheral side of the two first rotating shafts (507); a second rotating shaft (509) is rotatably matched with the opposite side of the two first rotating arms (508); a first connecting plate (510) is fixed to the opposite end surface of the two second rotating shafts (509); and a first arc-shaped sliding block (511) slidably matched in the arc-shaped groove (307) is fixed to the top of the two first connecting plates (510); A first flow pipe (512) is fixed between the two first arc-shaped sliders (511); two symmetrical first air blowing grooves (513) are formed through the outer peripheral side of the first flow pipe (512); one side of the first arc-shaped slider (511) is connected to a first air inlet shell (514); a first drive motor (515) is fixed to an outer side of the first air inlet shell (514); an output shaft of the first drive motor (515) is located inside the first air inlet shell (514); and a first blowing fan (516) is fixed thereto; The I-shaped slide plate (501) is fixed with two symmetrical second side plates (517) on the other side, the second side plates (517) are fixed with a third rotating shaft (518) on the side opposite to the two second rotating shafts (518), the second rotating arms (519) are fixed to the side surfaces around the two third rotating shafts (518), the second rotating arms (519) are rotatably matched with the fourth rotating shafts (520) on the side opposite to the two second rotating arms (519), the second connecting plates (521) are fixed with the end surfaces opposite to the two fourth rotating shafts (520), and the tops of the two second connecting plates (521) are fixed with a second arc-shaped sliding block (522) slidably matched in the arc-shaped groove (307); A second circulation tube (523) is fixed between the two second arc-shaped sliders (522); two symmetrical second air blowing grooves (524) are formed through the outer peripheral side of the second circulation tube (523); one side of the second arc-shaped slider (522) is connected to a second air inlet shell (525); a second driving motor (526) is fixed to an outer side of the second air inlet shell (525); the output shaft of the second driving motor (526) is located inside the second air inlet shell (525); and a second blowing fan (527) is fixed thereto.

2. The film blowing equipment for processing and producing PE heat shrinkable film according to claim 1, characterized in that: A guide rod (312) is fixed inside each of the two vertical grooves (303) and is sleeved and fitted inside the elastic spring (304); Two symmetrical sliding holes (528) are formed on the top of the I-shaped slide plate (501), and the two sliding holes (528) are respectively slidably matched with the two guide rods (312).

3. The film blowing equipment for PE heat shrinkable film processing and production according to claim 2, characterized in that: The two L-shaped vertical plates (302) are provided with a sliding groove (313) on one outer side surface above the vertical groove (303), and the two L-shaped vertical plates (302) are provided with a vertical groove (314) on both sides thereof. A U-shaped base plate (315) is fixed to the bottom of the two sliding grooves (313), an L-shaped support plate (316) is fixed to the top of the two U-shaped base plates (315), a threaded column (317) is fixed to the outer top of the two L-shaped support plates (316), a transverse groove (318) is opened on the inner side surface opposite to the U-shaped base plate (315), a transverse guide rod (319) is fixed inside the two transverse grooves (318), a return spring (320) sleeved on the transverse guide rod (319) is fixed inside the two transverse grooves (318), and an inclined baffle (321) is fixed inside the two U-shaped base plates (315).

4. The film blowing equipment for PE heat shrinkable film processing and production according to claim 3 is characterized in that: The tensioning member (4) comprises two T-shaped sliders (401) respectively slidably fitted inside the sliding groove (313), two symmetrical tension rollers (402) are fixed between the two T-shaped sliders (401), and hinge seats (403) are fixed to opposite sides of the two T-shaped sliders (401).

5. The film blowing equipment for PE heat shrinkable film processing and production according to claim 4, characterized in that: The two hinge seats (403) are internally provided with a lower pressure arm (404) for rotational engagement, and one side of the two lower pressure arms (404) is provided with a pin shaft (405) for rotational engagement, and the side surface of the pin shaft (405) is penetrated by two symmetrical guide holes (406), and the two guide holes (406) are respectively slidably engaged with the two transverse guide rods (319), and the side surface of the pin shaft (405) is fixedly connected to one end of the two return springs (320).

6. The film blowing equipment for processing and producing PE heat shrinkable film according to claim 5, characterized in that: The positioning assembly (2) comprises two symmetrical V-shaped plates (201), two symmetrical plug-in plates (202) are fixed to the bottom of the two V-shaped plates (201), and the two plug-in plates (202) are slidably matched with the two vertical grooves (314); A transverse plate (203) is commonly fixed to the top of the two V-shaped plates (201), an L-shaped pressing plate (204) is fixed to the bottom of the two V-shaped plates (201), a plug hole (205) is provided through the inner bottom of the two L-shaped pressing plates (204) and is plugged into the threaded column (317), a connecting block (206) is fixed to the outer bottom of the L-shaped pressing plates (204), a lower pressing rod (207) is fixed to the bottom of the two connecting blocks (206), and a U-shaped handle is fixed to the top of the transverse plate (203).

7. The method for using the film blowing equipment for PE heat shrinkable film processing and production according to claim 6, characterized in that: Including the following usage: T1. During use, the entire device can be set up between the PE heat shrink film forming and processing equipment and the forming and winding equipment. After the setting is completed, the initial end of the PE heat shrink film formed in the PE heat shrink film forming and processing equipment is passed through the entire PE heat shrink film processing and production blown film equipment, and finally the initial end of the formed PE heat shrink film is sleeved and fixed on the surface of the winding roller of the forming and winding equipment, so as to carry out the processing, blowing and cooling of the formed PE heat shrink film and the winding process after cooling; T2. Before use, the starting end of the PE heat shrinkable film that has been processed and formed in the PE heat shrinkable film forming and processing equipment is sequentially passed through the bottom of a transmission roller (308), the entire tensioning member (4), and the bottom of another transmission roller (308), and finally wound on the surface of the winding roller of the forming and winding equipment. After the above winding is completed, the formed PE heat shrinkable film that has sequentially passed through the bottom of a transmission roller (308), the entire tensioning member (4), and the bottom of another transmission roller (308) can be subjected to film blowing cooling and tension adjustment during the forming and winding process; T3. During the tension adjustment process, the two plug-in plates (202) fixed at the bottom of the two V-shaped plates (201) in the entire positioning assembly (2) are sequentially slidably plugged into the vertical grooves (314) opened on the two opposite sides of the two L-shaped vertical plates (302), and a downward pressure is applied to the two lower pressure arms (404) through the contact process between the lower pressure rod (207) and the lower pressure arm (404) rotating between the hinge seat (403) and the pin shaft (405), so that the return spring (320) connected and fixed to the transverse groove (318) and the side surface of the pin shaft (405) is compressed, so that the lower pressure arm (404) is rotated from an oblique state to a vertical state, driving the entire tensioning member (4) to move upward, thereby completing the tension adjustment of the formed PE heat shrink film; After the steps T4, T1 to T3 are completed, the entire PE heat shrink film processing and production blown film equipment begins to be used in conjunction with the PE heat shrink film forming and processing equipment and the forming and winding equipment. During the use, the first drive motor (515) and the second drive motor (526) are started simultaneously, so that the first blowing fan (516) and the second blowing fan (527) fixed to the output shafts of the first drive motor (515) and the second drive motor (526) inside the first air inlet shell (514) and the second air inlet shell (525) rotate. During the rotation process, the wind force generated passes through the first flow pipe (512) and the second flow pipe (523) fixed between the two first arc-shaped sliders (511) and blows out from the first blowing slot (513) and the second blowing slot (524), thereby completing the film blowing cooling process; T5. When the film blowing and cooling process in T (5) is being performed, the driving motor (309) is started to rotate the rotating cylinder (310). When the rotating cylinder (310) is rotating, a plurality of contact balls (505) adapted to a plurality of grooves (311) provided on the top of the rotating cylinder (310) begin to gradually slide from the inner bottom of the groove (311) toward the outer top of the rotating cylinder (310) and slide into the inner bottom of the groove (311), thereby reciprocating and driving the I-shaped slide plate (501) to reciprocate up and down between the two vertical grooves (303); T6. When the I-shaped slide plate (501) reciprocates up and down between the two vertical grooves (303), the first rotating arm (508) rotatingly matched with the first rotating shaft (507) and the second rotating shaft (509) starts to cooperate with the second rotating arm (519) rotatingly matched with the third rotating shaft (518) and the peripheral side of the fourth rotating shaft (520) to perform relative expansion and relative contraction movements, thereby driving the first flow tube (512) fixed between the two first arc-shaped sliders (511) and the second flow tube (523) fixed between the two second arc-shaped sliders (522) to reciprocate and move away from and toward each other inside the arc-shaped groove (307) penetrating through one side of the two arc-shaped plates (306), thereby preventing the film blowing member (5) from damaging the formed PE heat shrinkable film when the film blowing and cooling is performed on the formed PE heat shrinkable film at the same position, so that the entire film blowing and cooling process can be more evenly blown to the surface of the formed PE heat shrinkable film, thereby increasing the film blowing and cooling effect.

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