CN214268221U - Shrinking machine - Google Patents

Abstract

The utility model discloses a shrinking machine, wherein an upper frame and a base enclose a thermal shrinkage space, a conveyer belt is arranged on the base, a heating mechanism and an air outlet mechanism are arranged in the base, an inlet and an outlet for materials are formed at two ends of the conveyer belt by the upper frame, side air outlets are arranged at the left side and the right side of the conveyer belt, and an air deflector capable of rotating to adjust the angle is arranged above the side air outlets; the top of heating mechanism is provided with first deep bead, and this first deep bead is arranged along material direction of delivery and is provided with a plurality of air outlets, and the below of first deep bead is provided with a second deep bead, and this second deep bead is arranged along material direction of delivery and is provided with a plurality of wind scoops that correspond with the air outlet, and the setting that the second deep bead can slide is driven by second actuating mechanism and is carried out along material direction of delivery's slip, the size of overlapping of adjustment wind scoops and air outlet. The utility model discloses an angle of debugging both sides air-out and the amount of wind size of below air-out make the film of different specifications reach better thermal contraction effect.

Description

Shrinking machine

Technical Field

The utility model relates to a product packaging field, more specifically the utility model relates to a shrinker that says so.

Background

The heat shrink packaging machine is one of the more advanced packaging machines in the market at present. The product is wrapped by the shrink film, and the shrink film is tightly wrapped by the product through heating, so that the appearance of the product is fully displayed, the sales exhibition performance of the product is improved, and the appearance and the value feeling of the product are improved.

In a shrinking machine in the prior art, an air guide mechanism and a heating mechanism are arranged below a conveying space, a product sleeved with a film is conveyed by a conveying belt in the conveying space, and heat generated by the heating mechanism is blown upwards through the air guide mechanism to thermally shrink the film; the general machine only blows upwards, and does not limit the blowing direction of wind, when products with different specifications are handled, the situation that the upper part, the lower part and the periphery of a film are heated unevenly due to the fact that hot wind cannot be blown to the products and the side edges or the upper part of the film and the conveying space is large can occur, and the shrinkage quality of the film is affected; on the other hand, the size of the air blown upwards is not limited, and when the air is used for products with different specifications, the situation that the products and the films cannot be well in a proper heating environment due to too large or too small hot air can occur, the heating of the films is uneven or the shrinkage degree is different, and the shrinkage quality of the films is affected.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a shrinker guarantees through side structure that hot-blast product side and the top of waiting to shrink film by good direction to can adjust the size of below air-out, make the even shrink by being heated of film under the different product specifications, improve holistic shrink packaging quality.

The utility model provides a following technical scheme: a shrinking machine comprises a base and an upper frame, wherein the upper frame is arranged on the base, a heat shrinking space is enclosed by the upper frame and the base, a conveying belt for conveying materials is arranged on the base, a heating mechanism for heating and an air outlet mechanism for blowing air to the heating mechanism are arranged in the base, material inlets and outlets are formed at two ends of the conveying belt by the upper frame, side air outlets for blowing side hot air out are formed in the left side and the right side of the conveying belt, an air deflector is arranged above the side air outlets, the air deflector is rotatably arranged on the side wall of the upper frame and is driven by a first driving mechanism to rotate to adjust the angle of the hot air flowing to the inner side; the top of heating mechanism is provided with first deep bead, and this first deep bead is arranged along material direction of delivery and is provided with a plurality of air outlets, and the below of first deep bead is provided with a second deep bead, and this second deep bead is arranged along material direction of delivery and is provided with a plurality of wind scoops that correspond with the air outlet, and the setting that the second deep bead can slide is driven by second actuating mechanism and is carried out along material direction of delivery's slip, the size of overlapping of adjustment wind scoops and air outlet.

As an improvement, the air deflector and the first driving mechanism are driven by a connecting rod group, and the first driving mechanism and the connecting rod group are arranged at an outlet or an inlet of the material; the connecting rod group extends to two sides and is linked with the air deflectors on the two sides.

As an improvement, the connecting rod group comprises a transverse rod and two groups of longitudinal rods, the transverse rod is arranged above and linked with the first driving mechanism, the two groups of longitudinal rods are respectively arranged on the left side and the right side of the transverse rod to be linked, and the lower parts of the longitudinal rods are linked with the rotating shaft of the air deflector.

As an improvement, the lower part of the longitudinal rod is provided with a thread section, a lifting rack is meshed with the thread section, a gear matched with the lifting rack is arranged at a rotating shaft of the air deflector, and the lifting rack is driven to move up and down when the longitudinal rod rotates, so that the gear synchronously rotates.

As an improvement, the side of the vertical rod is also provided with a sliding rod in parallel, and the lifting rack can be sheathed on the sliding rod in a sliding way.

As an improvement, the upper side and the lower side of the lifting rack are respectively provided with a microswitch for detecting the up-down movement limit position of the lifting rack.

As an improvement, the air outlet sets up the first wind-guiding eaves to the material export slope in the first deep bead department that is close to material entry one side, and the air outlet sets up the second wind-guiding eaves that upwards extends in the first deep bead department that is close to material export one side.

As an improvement, the second driving mechanism comprises a driving motor, a reduction gear set and a translation rack, the driving motor is arranged on the base, a motor shaft of the driving motor is connected with the reduction gear set, the output end of the reduction gear set is connected with the translation rack, and the translation rack is connected with the second air baffle to be driven horizontally.

As an improvement, the reduction gear sets are two groups which are sequentially connected and arranged to form a two-stage reduction structure; each group of reduction gear sets is provided with a big gear and a small gear, and the two groups of reduction gear sets are connected through a chain wheel and a chain.

As an improvement, a proximity switch for detecting the front-back movement limit position of the translation rack is arranged at the side edge of the rear end of the translation rack.

The utility model has the advantages that: on one hand, after the air deflector is arranged, hot air blown out from the side edge can be guided to the position of a product at the inner side, and the hot air is directly and upwards flowed out from the lower part of the conveying belt in a matching manner, so that the temperatures of the lower part, the periphery and the upper part of a film on the product tend to be consistent, a uniform shrinkage effect is achieved, and the shrinkage quality is improved; the angle of the air deflector can be adjusted through the driving mechanism, the wind direction is adjusted, the height flow direction of wind can be controlled according to the sizes of products of different specifications, and the uniformity of heating of the thin film can be better guaranteed. On the other hand sets up the structure of debuggable air-out size with below air-out position to the realization is when dealing with the product of different specification sizes, and the amount of wind that blows out is controlled, makes the film of equidimension not reach better thermal contraction effect under suitable hot-blast amount of wind, avoids the film to be heated the condition emergence inhomogeneous or the shrink degree difference, thereby improves product packaging quality.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the shrinker after a part of the shell is removed.

Fig. 2 is a schematic view of the local three-dimensional structure of the shrinker of the present invention.

Fig. 3 is an enlarged view at M in fig. 2.

Fig. 4 is an enlarged view of fig. 2 at N.

Fig. 5 is a schematic view of the rear structure of the shrinker after the rear casing is removed.

Fig. 6 is a schematic view of the three-dimensional structure of the shrinker after the upper frame and part of the shell are removed.

Fig. 7 is a schematic perspective view of the windshield of the present invention viewed from below.

Fig. 8 is a schematic perspective view of a second driving mechanism according to the present invention.

Fig. 9 is a schematic perspective view of the second driving mechanism with a part of the housing removed.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, it is a specific embodiment of the shrinker of the present invention. The embodiment comprises a base 1 and an upper frame 2, wherein the upper frame 2 is arranged on the base 1, a thermal contraction space 3 is enclosed by the upper frame 2 and the base 1, a conveying belt 11 for conveying materials is arranged on the base 1, a heating mechanism 12 for heating and an air outlet mechanism 13 for blowing air to the heating mechanism 12 are arranged in the base 1, material inlets and outlets are formed at two ends of the conveying belt 11 by the upper frame 2, side air outlets 10 for blowing side hot air out are arranged at the left side and the right side of the conveying belt 11, an air deflector 5 is arranged above the side air outlets 10, the air deflector 5 is rotatably arranged on the side wall of the upper frame 2, and the air deflector 5 is driven by a first driving mechanism 6 to rotate so as to adjust the angle of the hot air flowing to the inner side; a first wind shield 41 is arranged above the heating mechanism 12, a plurality of air outlets 42 are arranged on the first wind shield 41 along the material conveying direction, a second wind shield 43 is arranged below the first wind shield 41, a plurality of air guide openings 44 corresponding to the air outlets 42 are arranged on the second wind shield 43 along the material conveying direction, the second wind shield 43 can slide and is driven by the second driving mechanism 0 to slide along the material conveying direction, and the overlapping size of the air guide openings 44 and the air outlets 42 is adjusted.

When the utility model is used, the conveyer belt 11 arranged on the base 1 adopts a roller arrangement mode, which is convenient for the hot air below to flow upwards; the heating mechanism 12 is located at the inlet side of the shrinking machine, the air outlet mechanism 13 is located at the outlet side of the shrinking machine, the air outlet mechanism 13 sucks relatively cooled air from the outlet side of the thermal shrinkage space 3 through a turbine and then blows the air to the heating mechanism 12 at the inlet side, the heating mechanism 12 can be selected from multiple groups of heating pipes, the flowing air is heated and heated by the heating pipes, and through continuous operation of the air outlet mechanism 13, heated air flows from the lower side to the upper side of the conveying belt 11 to reach the positions where products and films in the thermal shrinkage space 3 are located on one hand, and flows out from the side air outlets 10 at two sides on the other hand.

The first wind shield 41 is arranged below, upward wind is blocked, and then orderly blow out through the air outlets 42 arranged along the material conveying direction, so that orderly and stable hot wind blowing to products and films is facilitated, and stable thermal contraction is performed. The second wind baffle 43 is arranged to be matched with the wind guide opening 44, so that the opening degree of the wind outlet 42 can be controlled, namely when the wind guide opening 44 completely faces the wind outlet 42, the maximum opening degree is achieved, and the area blown out by wind energy is maximum; the horizontal position of the second air baffle 43 can be adjusted when the second driving mechanism 0 is controlled to work, the overlapping area of the air guide opening 44 and the air outlet 42 is reduced, namely the second air baffle 43 blocks the air outlet 42, the area blown out by wind energy is reduced, the function of debugging the air volume is achieved, when the heat shrinkage of product films with different specifications and sizes is dealt with, the better heat shrinkage effect of the films under different specifications is realized through the size of the air outlet 42, the condition that the films are heated unevenly or the shrinkage degree is different is avoided, and the product packaging quality is improved.

The side is through setting up aviation baffle 5, and when hot-blast through, according to aviation baffle 5's angle, hot-blast inside direction flow flows, flows to the position at product and film place, and the film on the product can receive from below and the hot-blast even being heated in side like this, makes the peripheral temperature of product and film keep unanimous, makes whole film be heated the shrink even, and the shrink effect is better at last, avoids original gas to flow wantonly after, product and film exist the not even phenomenon of shrink that the difference in temperature appears from top to bottom. In actual conditions, because of the difference of product specification, some high products, the difference is more likely to exist to the difference in its upper and lower difference in temperature, set up aviation baffle 5 to drive adjustable mode through first actuating mechanism 6, the staff of being convenient for adjusts aviation baffle 5's angle according to actual conditions, the higher product of reply can be adjusted to the air-out and more be partial to the top, make the hot-blast top surface that smoothly flows to product and film, avoid the appearance of difference in temperature from top to bottom, aviation baffle 5 accessible pivot is rotatable to be set up in the lateral wall of upper ledge 2, drive the pivot rotation when first actuating mechanism 6 starts and can adjust aviation baffle 5's angle.

As optimization, the shrinker can be further provided with a control module, and workers can input angle information to be adjusted by the air deflector 5 and translation information to be adjusted by the second air deflector 43 through the control module to control the first driving mechanism 6 and the second driving mechanism 0 to complete debugging; furthermore, the angle information of the air deflector 5 and the position information of the second air deflector 43 can correspond to the product information, and the required angle of the air deflector 5 can be adjusted by inputting the product specification information, and the opening degree of the air guiding opening 44 and the air outlet 42 can be adjusted by corresponding to the product specification information, so that the adjustment of workers according to the product specification can be facilitated.

As an improved specific embodiment, the air deflector 5 and the first driving mechanism 6 are driven by the connecting rod group 7, and the first driving mechanism 6 and the connecting rod group 7 are arranged at the outlet or the inlet of the material; the connecting rod group 7 extends to two sides and is linked with the air deflectors 5 on the two sides.

As shown in fig. 1 and 2, the first driving mechanism 6 and the linkage 7 may preferably be disposed at the inlet of the material, which is close to the heating mechanism 12, i.e. close to the wind outlet position, so as to be connected to the rotating shaft of the wind deflector 5; the upper part and two sides of the inlet are provided with good arrangement spaces, the first driving mechanism 6 and the connecting rod group 7 can be arranged at the positions, the structure is reasonable, the first driving mechanism and the connecting rod group are positioned outside the thermal contraction space 3, the first driving mechanism and the connecting rod group do not need to bear overhigh temperature, the service life of the mechanism is favorably ensured, and as shown in fig. 5, the shells at the positions of the first driving mechanism 6 and the connecting rod group 7 can be set to be porous structures, and the heat dissipation is favorably realized; the connecting rod group 7 extends to two sides, and the first driving mechanism 6 can drive the air deflectors 5 on two sides to be synchronously adjusted, so that cost control is facilitated, and synchronization and unification of adjustment on two sides are ensured.

As a modified specific embodiment, the linkage 7 includes a cross bar 71 and two sets of vertical bars 72, the cross bar 71 is disposed above and is linked with the first driving mechanism 6, the two sets of vertical bars 72 are disposed on the left and right sides of the cross bar 71 respectively and are linked, and the lower portion of the vertical bar 72 is linked with the rotating shaft of the air deflector 5.

As shown in fig. 1 and 2, the first driving mechanism 6 drives the cross rod 71 at the middle position, and then drives the longitudinal rods 72 at both sides through the cross rod 71, so that the whole driving force is stable, the cross rod 71 and the longitudinal rods 72 can be arranged on the upper frame 2 through bearings, the structure of a multi-rod body is utilized to guide the power of the first driving mechanism 6 at both sides to the air deflectors 5 at the lower part, and good application structure space is arranged by depending on the peripheral frame body at the inlet, so that the structure is simple, the cost is low, and the maintenance is convenient.

As an improved specific embodiment, the lower portion of the longitudinal rod 72 has a threaded section, a lifting rack 73 is engaged with the threaded section, a gear 74 matched with the lifting rack 73 is arranged at the rotating shaft of the air deflector 5, and when the longitudinal rod 72 rotates, the lifting rack 73 is driven to move up and down, so that the gear 74 rotates synchronously.

As shown in fig. 2 and 3, the above is a specific transmission structure of the vertical rod 72 and the rotating shaft of the air deflector 5, by the engagement of the lower threaded section of the vertical rod 72 and the lifting rack 73, when the vertical rod 72 rotates, the lifting rack 73 can be driven to lift, the lifting rack 73 can drive the gear 74 to rotate, and further the rotating shaft, i.e. the air deflector 5, rotates.

As an improved specific embodiment, the side of the vertical rod 72 is further provided with a sliding rod 75 in parallel, and the lifting rack 73 is slidably sleeved on the sliding rod 75.

As shown in fig. 2 and 3, the sliding rod 75 is provided to limit and improve the stability of the up-and-down movement of the lifting rack 73, and the lifting rack 73 can be well arranged in cooperation with the vertical rod 72.

As a modified embodiment, the upper and lower sides of the lifting rack 73 are provided with microswitches 9 for detecting the upper and lower movable limit positions of the lifting rack 73.

As shown in fig. 2 and 3, structure that causes when excessive for avoiding the upper and lower activity of lifting rack 73 collides with, too big specification value has been input during the debugging, or first actuating mechanism 6 breaks down and does not have the condition of in time stopping, can further set up micro-gap switch 9, when lifting rack 73 up-and-down motion reaches extreme position, can trigger micro-gap switch 9, but micro-gap switch 9 feedback signal gives control module, go to stop first actuating mechanism 6 by control module, can effectually avoid the damage that the structure collided with and brought, the time and the cost of extra shutdown maintenance cost have been avoided.

As a modified embodiment, two ends of the transverse rod 71 are respectively meshed with the two groups of longitudinal rods 72 through bevel gears 76 for transmission.

As shown in fig. 2 and 4, the above specific transmission structure of the transverse rod 71 and the longitudinal rod 72 realizes the adjustment of the multi-axis transmission direction by means of the good engagement of the bevel gears 76 arranged at the end parts of the transverse rod 71 and the longitudinal rod 72, and the gear engagement transmission is stable without the possibility of slipping, thereby better ensuring the accuracy of debugging.

As a modified embodiment, the cross bar 71 and the first driving mechanism 6 are connected and driven by a sprocket and a chain.

As shown in fig. 2 and 4, the chain and the chain wheel on the first driving mechanism 6 are not shown, the first driving mechanism 6 can be specifically configured as a motor, the chain wheel is arranged on the motor shaft, the chain wheel is arranged on the cross bar 71, the two groups of chain wheels are connected and driven by the chain, the matching of the chain wheel and the chain is stable, the possibility of slipping does not exist, and the debugging accuracy can be better ensured.

As a modified specific embodiment, the transverse rod 71 is further provided with a code wheel 8, a plurality of detection notches 81 are uniformly arranged in the circumferential direction of the code wheel 8, a detection sensor 82 is arranged on the periphery of the code wheel 8, the detection sensor 82 is used for detecting the rotation condition of the code wheel 8, and the detection sensor 82 senses and determines the rotation number and the rotation angle of the code wheel 8 when passing through the detection notches 81.

As shown in fig. 2 and 4, the installed encoder wheel 8 can match the rotation angle of the cross bar 71 with the rotation angle of itself, so as to know the rotation angles of the vertical bar 72 and the air deflectors 5, and realize accurate monitoring of the rotation angles of the air deflectors 5 on both sides; set up even detection breach 81 on the encoder wheel 8, divide with 360 degrees the quantity that detects breach 81, it can detect once to obtain corresponding angle by detection sensor 82, make this angle of every rotation of encoder wheel 8, detection sensor 82 can be once corresponding with detection breach 81, thereby make the rotation angle or the number of turns of feedback encoder wheel 8 that detection sensor 82 can be accurate, or rely on the rotation angle or the number of turns of the good control encoder wheel 8 of detection sensor 82 cooperation control module, make horizontal pole 71, vertical pole 72, aviation baffle 5 pass after accurate angle or the number of turns according to the parameter that control module needs the debugging, the signal feedback of detection sensor 82 or encoder wheel 8 to control module, control module can be accurate stop first actuating mechanism 6, realize the accurate stability of debugging, the precision is higher.

As a modified specific embodiment, the air outlet 42 is provided with a first air guiding eave 411 inclined toward the material outlet at the first air baffle 41 near the material inlet side, and the air outlet 42 is provided with a second air guiding eave 412 extending upward at the first air baffle 41 near the material outlet side.

As shown in fig. 6, the hot air flowing out of the air outlet 42 flows to the outlet side of the material transportation under the blocking and guiding of the first air guiding eaves 411, and the product is driven by the conveying belt 11 to continuously move to the outlet side, so that the guiding air can keep the hot air and the product moving at a consistent speed and direction, which is more beneficial to ensuring the temperature stability of the product and the film and ensuring a good heat shrinkage effect. The air flowing toward the outlet side is sucked again and circulated as it reaches the air outlet mechanism 13. When being guided to the outlet side by first wind-guiding eaves 411 and flowing, hot-blast can be carried out horizontal flow direction's the stopping by second wind-guiding eaves 412 at the outlet side to make hot-blast can be better toward the direction flow in the slant, product and film and the thermal contraction space 3 of flow direction top that can be more abundant, avoid hot-blast too much horizontal flow in the space between first deep bead 41 and conveyer belt 11, cause thermal loss.

As a modified specific embodiment, the second driving mechanism 0 includes a driving motor 01, a reduction gear set 02 and a translation rack 03, the driving motor 01 is disposed on the base 1, a motor shaft of the driving motor is connected with the reduction gear set 02, an output end of the reduction gear set 02 is connected with the translation rack 03, and the translation rack 03 is connected with the second wind deflector 43 for horizontal driving.

As shown in fig. 6, 7, 8, and 9, the horizontal position of the second air deflector 43 can be well adjusted by means of flexible start and stop and forward and reverse rotation of the driving motor 01, generally, the rotating speed of the driving motor 01 is higher, and the distance of the second air deflector 43 is more finely moved by matching with the reduction gear set 02, which is beneficial to better control the opening degree of the air guiding opening 44 and the air outlet 42; the translation rack 03 is used for converting the rotation state of the reduction gear set 02 to the translation state of the second wind deflector 43, the transmission is stable in structure, the slipping condition does not exist, and the accuracy of transmission debugging can be better ensured.

As an improved specific implementation manner, the reduction gear sets 02 are two groups which are sequentially connected and arranged to form a two-stage reduction structure; each group of reduction gear sets 02 is provided with a large gear and a small gear, and the two groups of reduction gear sets 02 are connected through a chain wheel and a chain.

As shown in fig. 8 and 9, in order to move the second wind deflector 43 with a finer distance, a larger reduction ratio is required, and when a first-stage reduction is adopted, the size of the gear needs to be designed to be larger, and a larger space needs to be occupied; in this embodiment, a two-stage reduction structure is adopted, and the volume of the two groups of reduction gear sets 02 can be smaller, so that the reduction of the volume in the structure is facilitated, and the second driving mechanism 0 is conveniently arranged in the base 1 as a whole without interfering with other components. Each group of reduction gear sets 02 form a reduction structure by adopting two gears which are most simplified, and the arrangement occupies a small space; then connect two sets of reduction gear sets 02 through sprocket and chain, structurally the transmission is stable, does not have the condition of skidding, the accuracy of assurance transmission debugging that can be better.

As a modified specific embodiment, a proximity switch 04 for detecting the forward and backward movement limit position of the translation rack 03 is arranged at the side edge of the rear end of the translation rack 03.

As shown in fig. 8 and 9, structure that causes when for avoiding translation rack 03 translation activity is excessive collides with, too big specification numerical value has been input during the debugging, or driving motor 01 breaks down and does not in time stop's the condition, can further set up proximity switch 04, when translation rack 03 seesaw to extreme position, can be detected by proximity switch 04, but proximity switch 04 feedback signal gives control module, go to stop driving motor 01 by control module, can effectually avoid the damage that the structure collided with and brought, the time and the cost of extra shutdown maintenance cost have been avoided.

As a modified embodiment, the air guiding opening 44 and the air outlet 42 are narrow slits extending in the width direction of the conveyor belt 11.

As shown in fig. 6 and 7, the air guiding opening 44 and the air outlet 42 in this embodiment cover the width direction of the conveying belt 11, so that hot air can flow out in order in width, a good position for placing products and films can be covered, and a good flow can be achieved to the heat shrinkage space 3; the film feeding device is arranged into a plurality of groups along the material conveying direction, so that the space on the inlet side is well and sufficiently covered, and the stability of products and films during passing is ensured.

As an improved specific implementation manner, a synchronous rotating encoding wheel 8 is further arranged at the driving motor 01 or the reduction gear group 02, a plurality of detection notches 81 are uniformly arranged in the circumferential direction of the encoding wheel 8, a detection sensor 82 is arranged on the periphery of the encoding wheel 8, the detection sensor 82 is used for detecting the rotation condition of the encoding wheel 8, and the detection sensor 82 senses and determines the rotation number and the rotation angle of the encoding wheel 8 when passing through the detection notches 81.

As shown in fig. 7, 8 and 9, the arranged encoding wheel 8 can match the rotation angle of the motor shaft of the driving motor 01 or the rotation angle of the gear in the reduction gear set 02 by the rotation angle thereof, so as to know the translation distance between the translation rack 03 and the second air baffle 43, and accurately monitor the opening degree of the air guiding opening 44 and the air outlet opening 42; set up even detection breach 81 on the encoding wheel 8, divide with 360 degrees the quantity that detects breach 81, it can detect once by detection sensor 82 to obtain corresponding angle, make this angle of every rotation of encoding wheel 8, detection sensor 82 can be once corresponding with detection breach 81, thereby make the rotation angle or the number of turns of feedback encoding wheel 8 that detection sensor 82 can be accurate, or rely on the rotation angle or the number of turns of the good control encoding wheel 8 of detection sensor 82 cooperation control module, after making second air baffle 43 remove accurate distance according to the parameter of the required debugging of control module, detect sensor 82 or signal feedback to control module of encoding wheel 8, control module can be accurate stop driving motor 01, realize the accuracy stability of debugging, the precision is higher.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a shrinker, includes base (1) and upper ledge (2), upper ledge (2) sets up on base (1), upper ledge (2) and base (1) enclose into heat shrink space (3), set up conveyer belt (11) that are used for carrying the material on base (1), set up heating mechanism (12) that are used for the heating in base (1) and be used for air-out mechanism (13) of blowing to heating mechanism (12), upper ledge (2) forms the access & exit of material at the both ends of conveyer belt (11), its characterized in that:

the left side and the right side of the conveying belt (11) are provided with side air outlets (10) for blowing side hot air out, an air deflector (5) is arranged above the side air outlets (10), the air deflector (5) is rotatably arranged on the side wall of the upper frame (2), and the air deflector (5) is driven by a first driving mechanism (6) to rotate to adjust the angle of the hot air flowing inwards;

the heating device is characterized in that a first wind shield (41) is arranged above the heating mechanism (12), a plurality of air outlets (42) are arranged on the first wind shield (41) in a material conveying direction, a second wind shield (43) is arranged below the first wind shield (41), a plurality of wind guide openings (44) corresponding to the air outlets (42) are arranged on the second wind shield (43) in the material conveying direction, the second wind shield (43) can slide in the material conveying direction under the driving of a second driving mechanism (0), and the overlapping size of the wind guide openings (44) and the air outlets (42) is adjusted.

2. A shrinker as claimed in claim 1, characterized in that: the air deflector (5) and the first driving mechanism (6) are driven by the connecting rod set (7), and the first driving mechanism (6) and the connecting rod set (7) are arranged at an outlet or an inlet of a material; the connecting rod group (7) extends to two sides and is linked with the air deflectors (5) on the two sides.

3. A shrinker as claimed in claim 2, characterized in that: the connecting rod group (7) comprises a transverse rod (71) and two groups of longitudinal rods (72), the transverse rod (71) is arranged above and is linked with the first driving mechanism (6), the two groups of longitudinal rods (72) are respectively arranged on the left side and the right side of the transverse rod (71) to be linked, and the lower portions of the longitudinal rods (72) are linked with a rotating shaft of the air deflector (5).

4. A shrinker as claimed in claim 3, characterized in that: the lower part of the longitudinal rod (72) is provided with a threaded section, a lifting rack (73) is meshed with the threaded section, a gear (74) matched with the lifting rack (73) is arranged at a rotating shaft of the air deflector (5), and the lifting rack (73) is driven to move up and down when the longitudinal rod (72) rotates, so that the gear (74) rotates synchronously.

5. A shrinker as claimed in claim 4, characterized in that: the side of the vertical rod (72) is also provided with a sliding rod (75) in parallel, and the lifting rack (73) is sleeved on the sliding rod (75) in a sliding manner.

6. A shrinker as claimed in claim 4, characterized in that: and micro switches (9) used for detecting the up-down movement limit positions of the lifting rack (73) are arranged on the upper side and the lower side of the lifting rack (73).

7. A shrinker according to any one of claims 1-6, characterized in that: the air outlet (42) sets up first wind guide eaves (411) to the material export slope in first deep bead (41) that is close to material entry one side, air outlet (42) set up the second wind guide eaves (412) that upwards extend in first deep bead (41) that is close to material export one side.

8. A shrinker according to any one of claims 1-6, characterized in that: second actuating mechanism (0) includes driving motor (01), reduction gear group (02) and translation rack (03), driving motor (01) sets up on base (1), and its motor shaft connects reduction gear group (02), translation rack (03) is connected to the output of reduction gear group (02), translation rack (03) is connected to second windshield (43) and is carried out the level and drive.

9. A shrinker as claimed in claim 8, characterized in that: the two groups of reduction gear sets (02) are sequentially connected and arranged to form a two-stage reduction structure; each group of reduction gear sets (02) is provided with a big gear and a small gear, and the two groups of reduction gear sets (02) are connected through a chain wheel and a chain.

10. A shrinker as claimed in claim 8, characterized in that: and a proximity switch (04) for detecting the forward and backward movement limit position of the translation rack (03) is arranged at the side edge of the rear end of the translation rack (03).

Images