阅读说明：本技术 一种热收缩膜制造用热收缩性检测装置 (Heat shrinkability detection device for heat shrinkable film manufacturing ) 是由 吴日香 于 2021-01-23 设计创作，主要内容包括：本发明涉及收缩膜制造检测领域,具体的说是一种热收缩膜制造用热收缩性检测装置,包括固定支架、检测箱、伸缩柱、取样头、吸附机构、裁切机构、伸缩机构、联动机构、密封机构和加热板,所述固定支架固定连接在加工台上端,所述固定支架下端中间位置固定连接有一个检测箱,所述固定支架上端中间位置开设有一个通孔,所述通孔内滑动连接有一个伸缩柱,所述伸缩柱内开设有一个伸缩槽。通过伸缩机构的液压缸输出端推动吸附机构伸缩杆滑动,从而可以推动取样头向下滑动,并且收缩膜进行吸附,最终带动收缩膜进入检测箱进行收缩性检测,实现了检测的自动话,避免了人工进行取样后,再将其放置到检测箱内的麻烦操作,从而提高了热收缩膜的检测效率。(The invention relates to the field of shrink film manufacturing and detection, in particular to a heat shrinkable property detection device for manufacturing a heat shrinkable film, which comprises a fixed support, a detection box, a telescopic column, a sampling head, an adsorption mechanism, a cutting mechanism, a telescopic mechanism, a linkage mechanism, a sealing mechanism and a heating plate, wherein the fixed support is fixedly connected to the upper end of a processing table, the middle position of the lower end of the fixed support is fixedly connected with the detection box, the middle position of the upper end of the fixed support is provided with a through hole, the through hole is internally and slidably connected with the telescopic column, and a telescopic groove is formed in the telescopic column. The hydraulic cylinder output end of the telescopic mechanism pushes the telescopic rod of the adsorption mechanism to slide, so that the sampling head can be pushed to slide downwards, the contraction film is adsorbed, and finally the contraction film is driven to enter the detection box to be subjected to contractility detection, so that the automatic detection is realized, the trouble operation of placing the contraction film in the detection box after manual sampling is avoided, and the detection efficiency of the thermal contraction film is improved.)

1. A heat-shrinkable performance detection device for manufacturing a heat-shrinkable film comprises a fixed support (1), a detection box (2), a telescopic column (3), a sampling head (4), an adsorption mechanism (5), a cutting mechanism (6), a telescopic mechanism (7), a linkage mechanism (8), a sealing mechanism (9) and a heating plate (11), and is characterized in that the fixed support (1) is fixedly connected to the upper end of a processing table, the middle position of the lower end of the fixed support (1) is fixedly connected with the detection box (2), the middle position of the upper end of the fixed support (1) is provided with a through hole (12), the through hole (12) is internally connected with the telescopic column (3) in a sliding manner, a telescopic groove (14) is formed in the telescopic column (3), the telescopic column (3) penetrates through the through hole (12) and the detection box (2), and a through hole (10) is formed in the position of the side wall of the lower end of the detection box, the utility model discloses a detection device, including detection case (2), flexible post (3), perforation (10) and sampling head (4) of fixedly connected with are just located heating plate (11) of the equal fixedly connected with of detection case (2) lateral wall in detection case (2), flexible post (3) lower extreme passes perforation (10), seted up one in sampling head (4) and adsorbed air cavity (13), be provided with one adsorption equipment structure (5) in adsorbed air cavity (13), it sets up in the sampling head (4) outside to cut mechanism (6), telescopic machanism (7) set up in fixed bolster (1) upper end, link gear (8) set up in fixed bolster (1) both sides, sealing mechanism (9) set up in fixed bolster (1) and are located detection case (2) below.

2. The heat shrinkability test apparatus for manufacturing a heat shrinkable film of claim 1, wherein: the adsorption mechanism (5) comprises a piston plate (51), a sealing gasket (52), an electric control valve (53), a limiting plate (54), an expansion rod (55) and a vent hole (56), the piston plate (51) is connected in the adsorption air cavity (13) in a sliding way, a sealing gasket (52) is fixedly connected with the outer side of the piston plate (51), the outer side of the sealing gasket (52) is connected with the side wall of the adsorption air cavity (13) in a sliding way, the limiting plate (54) is fixedly connected in the adsorption air cavity (13) and is positioned at the lower end of the adsorption air cavity (13), the lower end of the telescopic rod (55) is fixedly connected to the piston plate (51) and is positioned in the middle of the piston plate (51), the upper end of the telescopic rod (55) extends through the adsorption air cavity (13) and is connected in the telescopic groove (14) in a sliding way, the piston plate (51) is provided with a vent hole (56), and an electric control valve (53) is fixedly connected in the vent hole (56).

3. The heat shrinkability test apparatus for manufacturing a heat shrinkable film of claim 1, wherein: the cutting mechanism (6) comprises a cutting blade (61), a connecting rod (62), a connecting groove (63), a cutting seat (64) and a cutting hole (65), the cutting blade (61) is connected to the outer side of the sampling head (4) in a sliding way, the upper end of the cutting blade (61) is uniformly and fixedly connected with a group of connecting rods (62), one end of the connecting rod (62) far away from the cutting blade (61) penetrates through the sampling head (4) and is fixedly connected with the upper end of the piston plate (51), the connecting grooves (63) are all arranged on the side wall of the sampling head (4) and are positioned at the connecting part of the connecting rod (62), the connecting rods (62) are all connected in the corresponding connecting grooves (63) in a sliding way, the cutting seat (64) is fixedly connected with the upper end of the processing table and the position of the cutting seat corresponds to the position of the sampling head (4), the upper end of the cutting seat (64) and the position corresponding to the cutting blade (61) are provided with a cutting hole (65).

4. The heat shrinkability test apparatus for manufacturing a heat shrinkable film of claim 1, wherein: telescopic machanism (7) are including bracing piece (71), mount table (72), pneumatic cylinder (73), locating plate (74) and reset spring (75), bracing piece (71) are provided with four and equal fixed connection in fixed bolster (1) upper end, four bracing piece (71) are located flexible post (3) outside evenly distributed, four bracing piece (71) upper end fixedly connected with mount table (72), pneumatic cylinder (73) of fixedly connected with on mount table (72), pneumatic cylinder (73) output end fixed connection is in telescopic link (55) upper end of adsorption equipment (5).

5. The heat shrinkability test apparatus for manufacturing a heat shrinkable film of claim 4, wherein: locating plate (74) fixed connection just is located fixed bolster (1) top in flexible post (3) outside, a reset spring (75) of fixedly connected with between locating plate (74) lower extreme and fixed bolster (1) upper end, reset spring (75) are located flexible post (3) outside.

6. The heat shrinkability test apparatus for manufacturing a heat shrinkable film of claim 1, wherein: the linkage mechanism (8) comprises linkage sliding plates (81), connecting rotating rods (84), driving gear plates (85), driving gears (810) and driven gears (812), the linkage sliding plates (81) are arranged in two and are respectively connected to two sides of the upper end of the fixed support (1) in a sliding mode, the positions of the two linkage sliding plates (81) correspond to the telescopic columns (3) and are symmetrically distributed at the upper end of the fixed support (1), one side, close to the upper end of each linkage sliding plate (81), of each linkage sliding plate is fixedly connected with a first mounting seat (82), the positions, corresponding to the first mounting seats (82), of each telescopic column (3) are fixedly connected with a second mounting seat (83), one connecting rotating rod (84) is rotatably connected between each first mounting seat (82) and each second mounting seat (83), and one driving gear plate (85) is fixedly connected to the middle positions of the lower ends of the two linkage sliding plates (81), two equal fixedly connected with stopper (86) in linkage slide (81) lower extreme both sides, fixed bolster (1) upper end and with stopper (86) corresponding position all seted up one spacing groove (87), the equal sliding connection of stopper (86) is in corresponding spacing groove (87), fixed bolster (1) both sides and with driving gear board (85) corresponding position all seted up one linkage groove (88).

7. The apparatus for inspecting heat shrinkability of a heat shrinkable film of claim 6, wherein: linkage groove (88) internal rotation is connected with a initiative pivot (89) and a driven shaft (811), initiative pivot (89) are located driven shaft (811) top, driving gear (810) of fixedly connected with on initiative pivot (89), driving gear (810) upper end is connected with driving gear board (85) meshing, driven shaft (811) are gone up driven gear (812) of fixedly connected with, driven gear (812) upper end is connected with driving gear (810) meshing.

8. The heat shrinkability test apparatus for manufacturing a heat shrinkable film of claim 1, wherein: sealing mechanism (9) are including spacing spout (91), sealed slide (92), swivelling chute (93), change pearl (94) and driven gear board (95), fixed bolster (1) lateral wall is all seted up in spacing spout (91) and is located detection case (2) below, equal sliding connection has a sealed slide (92) in spacing spout (91), driven gear board (95) of the equal fixedly connected with of sealed slide (92) upper end intermediate position, driven gear board (95) are connected with driven gear (812) meshing of link gear (8), a set of swivelling chute (93) has evenly been seted up to spacing spout (91) lower extreme lateral wall, equal swivelling connection has one in swivelling chute (93) changes pearl (94), it all passes swivelling chute (93) and contacts with sealed slide (92) lower extreme to change pearl (94) upper end.

Technical Field

The invention relates to the field of shrink film manufacturing detection, in particular to a heat shrinkability detection device for manufacturing a heat shrinkable film.

Background

The heat shrinkable film is a packaging film formed by processing a polyester compound, is used for the outer packaging of daily commodities, can protect packaged objects from being impacted, has the functions of rain prevention, moisture prevention and rust prevention, can enable products to be printed with exquisite outer packages, can well show the good image of manufacturers, and is usually placed in a detection box and deformed in a heating mode when being detected in the production process, and the contractibility of the heat shrinkable film is judged according to the deformation of a heat shrinkable plate.

However, the detection is directly carried out by using a detection box, a detection sample needs to be manually placed in the detection box for fixing, the detection efficiency is low, the automation of detection cannot be realized, the automatic detection requirement of a processing table on a production line for manufacturing the heat shrinkable film cannot be met, the manual cutting and sampling are carried out on the processing table, the production line needs to be stopped for the safety of personnel and equipment, the sampling detection and the manufacture of the heat shrinkable film cannot be carried out simultaneously, the heat shrinkable film is directly placed in the detection box for heating detection, the temperature in the detection box is easily lost under the condition that the detection box is not effectively sealed by a sealing device, the temperature in the detection box cannot be well guaranteed to be stable, and the detection effect of the heat shrinkable film can be influenced.

Disclosure of Invention

The invention provides a heat shrinkability detection device for manufacturing a heat shrinkable film, aiming at the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a heat shrinkable property detection device for manufacturing a heat shrinkable film comprises a fixed support, a detection box, a telescopic column, a sampling head, an adsorption mechanism, a cutting mechanism, a telescopic mechanism, a linkage mechanism, a sealing mechanism and a heating plate, wherein the fixed support is fixedly connected to the upper end of a processing table, the middle position of the lower end of the fixed support is fixedly connected with the detection box, the middle position of the upper end of the fixed support is provided with a through hole, the through hole is internally and slidably connected with the telescopic column, the telescopic column is internally provided with a telescopic groove, the telescopic column penetrates through the through hole and the detection box, the side wall of the lower end of the detection box is provided with a through hole corresponding to the through hole, the heating plate is fixedly connected with the side wall of the detection box in the detection box, the lower end of the telescopic column penetrates through the through hole and is fixedly, the vacuum cutting device is characterized in that an adsorption mechanism is arranged in the adsorption air cavity, the cutting mechanism is arranged on the outer side of the sampling head, the telescopic mechanism is arranged at the upper end of the fixed support, the linkage mechanisms are arranged on two sides of the fixed support, and the sealing mechanism is arranged in the fixed support and located below the detection box.

The adsorption mechanism comprises a piston plate, a sealing gasket, an electric control valve, a limiting plate, a telescopic rod and an air vent, wherein the piston plate is connected in an adsorption air cavity in a sliding manner, the sealing gasket is fixedly connected to the outer side of the piston plate, the outer side of the sealing gasket is connected with the side wall of the adsorption air cavity in a sliding manner, the limiting plate is fixedly connected to the lower end of the adsorption air cavity in the adsorption air cavity, the lower end of the telescopic rod is fixedly connected to the piston plate and is located at the middle position of the piston plate, the upper end of the telescopic rod extends through the adsorption air cavity and is connected to the telescopic groove in a sliding manner, the air vent.

The utility model discloses a sample head, including cutting blade, connecting rod, spread groove, cutting seat and cutting hole, cutting blade sliding connection is in the sample head outside, cut a set of connecting rod of the even fixedly connected with in blade upper end, the connecting rod is kept away from and is cut blade one end and all pass the sample head and equal fixed connection in piston plate upper end, the spread groove is all seted up in the sample head lateral wall and is located the connecting rod junction, the equal sliding connection of connecting rod is in corresponding spread groove, it is corresponding with the sample head position to cut a fixed connection in processing platform upper end and position, cut a seat upper end and with cut the blade corresponding position and seted up one and cut the hole.

Specifically, telescopic machanism includes bracing piece, mount table, pneumatic cylinder, locating plate and reset spring, the bracing piece is provided with four and equal fixed connection in the fixed bolster upper end, four the bracing piece is located telescopic column outside evenly distributed, four mount table of upper end of the support bar fixedly connected with, pneumatic cylinder of fixedly connected with on the mount table, pneumatic cylinder output fixed connection is in adsorption apparatus's telescopic link upper end.

Specifically, locating plate fixed connection just is located the fixed bolster top in the flexible post outside, reset spring of fixedly connected with between locating plate lower extreme and the fixed bolster upper end, reset spring is located the flexible post outside.

Specifically, the linkage mechanism comprises linkage sliding plates, connecting rotating rods, driving gear plates, driving gears and driven gears, the linkage sliding plates are provided with two linkage sliding plates which are respectively connected with two sides of the upper end of a fixed support in a sliding manner, the positions of the two linkage sliding plates correspond to telescopic columns and are symmetrically distributed on the upper end of the fixed support, a first mounting seat is fixedly connected with one side of the upper end of the linkage sliding plate close to one side, a second mounting seat is fixedly connected with the telescopic columns and corresponds to the first mounting seat, a connecting rotating rod is rotatably connected between the first mounting seat and the second mounting seat, a driving gear plate is fixedly connected with the middle position of the lower ends of the two linkage sliding plates, two sides of the lower ends of the two linkage sliding plates are fixedly connected with a limiting block, and a limiting groove is formed in the upper end of the fixed support and corresponds to the limiting block, the limiting blocks are connected in the corresponding limiting grooves in a sliding mode, and linkage grooves are formed in the two sides of the fixed support and in the positions corresponding to the driving gear plates.

Concretely, linkage groove internal rotation is connected with a initiative pivot and a driven spindle, the initiative pivot is located the driven spindle top, driving gear of fixedly connected with in the initiative pivot, the driving gear upper end is connected with the meshing of initiative gear board, driven gear of fixedly connected with in the driven spindle, driven gear upper end and driving gear meshing are connected.

Specifically, sealing mechanism includes spacing spout, sealed slide, swivelling chute, commentaries on classics pearl and driven gear board, the fixed bolster lateral wall is all seted up in the spacing spout and is located the detection case below, equal sliding connection has a sealed slide in the spacing spout, driven gear board of the equal fixedly connected with of sealed slide upper end intermediate position, driven gear board is connected with link gear's driven gear meshing, a set of swivelling chute has evenly been seted up to spacing spout lower extreme lateral wall, equal swivelling connection has one to change the pearl in the swivelling chute, change the pearl upper end and all pass the swivelling chute and contact with sealed slide lower extreme.

The invention has the beneficial effects that:

(1) according to the invention, the telescopic rod of the adsorption mechanism is pushed to slide by the output end of the hydraulic cylinder of the telescopic mechanism, so that the sampling head can be pushed to slide downwards, the shrink film is adsorbed, and finally the shrink film is driven to enter the detection box for the contractility detection, thereby realizing the automatic detection, avoiding the troublesome operation of placing the shrink film in the detection box after manual sampling, and further improving the detection efficiency of the heat shrinkable film.

(2) In the process of descending the sampling head, the cutting blade of the cutting mechanism can be inserted into the cutting hole, so that the detection device can quickly sample on a production line, the trouble that the production equipment needs to be stopped to sample when the detection device detects and samples is effectively avoided, and the normal production of the production equipment is not influenced in the sampling and detection process.

(3) According to the invention, through the rotation of the connecting rotating rod of the linkage mechanism, when the sampling head carries the shrink film to enter the detection box, the two sealing sliding plates of the sealing mechanism are driven to slide towards one side, so that the through hole at the lower end of the detection box can be sealed, the shrink film can be ensured to be detected in a relatively sealed environment, the heat loss in the detection box is reduced, the detection accuracy is increased, and the condition that the temperature is difficult to keep constant in the detection process because the shrink film is directly placed in an open heating environment is effectively avoided.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a front cut-away structure provided by the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of an internal cutting structure of the sampling head provided by the present invention;

FIG. 4 is a schematic side view of the present invention;

FIG. 5 is a schematic view of a top-down cut-away structure of the sampling head provided by the present invention;

FIG. 6 is a schematic top view of the present invention;

fig. 7 is a sectional structure diagram of the side surface of the fixing bracket provided by the invention at the linkage groove.

In the figure: 1. fixing a bracket; 2. a detection box; 3. a telescopic column; 4. a sampling head; 5. an adsorption mechanism; 51. a piston plate; 52. a gasket; 53. an electrically controlled valve; 54. a limiting plate; 55. a telescopic rod; 56. a vent hole; 6. a cutting mechanism; 61. cutting a blade; 62. a connecting rod; 63. connecting grooves; 64. a cutting seat; 65. cutting holes; 7. a telescoping mechanism; 71. a support bar; 72. an installation table; 73. a hydraulic cylinder; 74. positioning a plate; 75. a return spring; 8. a linkage mechanism; 81. a linkage sliding plate; 82. a first mounting seat; 83. a second mounting seat; 84. connecting the rotating rod; 85. a drive gear plate; 86. a limiting block; 87. a limiting groove; 88. a linkage groove; 89. a driving rotating shaft; 810. a driving gear; 811. a driven rotating shaft; 812. a driven gear; 9. a sealing mechanism; 91. a limiting chute; 92. sealing the sliding plate; 93. a rotating tank; 94. rotating the beads; 95. a driven gear plate; 10. perforating; 11. heating plates; 12. a through hole; 13. an adsorption air cavity; 14. a telescopic groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the heat-shrinkable detecting device for manufacturing a heat-shrinkable film according to the present invention comprises a fixed support 1, a detecting box 2, a telescopic column 3, a sampling head 4, an adsorbing mechanism 5, a cutting mechanism 6, a telescopic mechanism 7, a linkage mechanism 8, a sealing mechanism 9 and a heating plate 11, wherein the fixed support 1 is fixedly connected to the upper end of a processing table, the detecting box 2 is fixedly connected to the middle position of the lower end of the fixed support 1, a through hole 12 is formed in the middle position of the upper end of the fixed support 1, the telescopic column 3 is slidably connected to the through hole 12, a telescopic slot 14 is formed in the telescopic column 3, the telescopic column 3 passes through the through hole 12 and the detecting box 2, a through hole 10 is formed in the side wall of the lower end of the detecting box 2 corresponding to the through hole 12, and a heating plate 11 is fixedly connected to the side wall of the detecting box 2, the lower end of the telescopic column 3 passes through the through hole 10 and is fixedly connected with a sampling head 4, an adsorption air cavity 13 is arranged in the sampling head 4, an adsorption mechanism 5 is arranged in the adsorption air cavity 13, the cutting mechanism 6 is arranged outside the sampling head 4, the telescopic mechanism 7 is arranged at the upper end of the fixed bracket 1, the linkage mechanism 8 is arranged at two sides of the fixed bracket 1, the sealing mechanism 9 is arranged in the fixed bracket 1 and is positioned below the detection box 2, during the lowering of the sampling head 4, the cutting blade 61 of the cutting mechanism 6 is inserted into the cutting hole 65, thereby realizing the rapid sampling of the detection device on the production line, effectively avoiding the problems that when the detection device detects the sampling, the production equipment needs to be shut down, so that the troublesome operation of sampling can be carried out, and the normal production of the production equipment is not influenced in the sampling detection process.

Specifically, the adsorption mechanism 5 includes a piston plate 51, a sealing gasket 52, an electric control valve 53, a limiting plate 54, a telescopic rod 55 and a vent hole 56, the piston plate 51 is slidably connected in the adsorption air cavity 13, the sealing gasket 52 is fixedly connected to the outer side of the piston plate 51, the outer side of the sealing gasket 52 is slidably connected to the side wall of the adsorption air cavity 13, the limiting plate 54 is fixedly connected in the adsorption air cavity 13 and located at the lower end of the adsorption air cavity 13, the lower end of the telescopic rod 55 is fixedly connected to the piston plate 51 and located at the middle position of the piston plate 51, the upper end of the telescopic rod 55 extends through the adsorption air cavity 13 and is slidably connected in the telescopic groove 14, the piston plate 51 is provided with the vent hole 56, the electric control valve 53 is fixedly connected in the vent hole 56, the electric control valve 53 is opened, so that external air enters the adsorption, the interior of the detection box 2 is heated by the heating plate 11.

Specifically, the cutting mechanism 6 comprises a cutting blade 61, a connecting rod 62, a connecting groove 63, a cutting seat 64 and a cutting hole 65, the cutting blade 61 is slidably connected to the outer side of the sampling head 4, a group of connecting rods 62 is fixedly connected to the upper end of the cutting blade 61, the connecting rod 62 is far away from one end of the cutting blade 61, the end of the cutting blade is passed through the sampling head 4 and fixedly connected to the upper end of the piston plate 51, the connecting groove 63 is formed in the side wall of the sampling head 4 and located at the connecting position of the connecting rod 62, the connecting rod 62 is slidably connected to the corresponding connecting groove 63, the cutting seat 64 is fixedly connected to the upper end of the processing platform and is located corresponding to the sampling head 4, the upper end of the cutting seat 64 and the position corresponding to the cutting blade 61 are provided with one cutting hole 65, the connecting rod 62 is located in the connecting groove 63 and slides downwards, so that the, and cutting and sampling the thermal shrinkage film on the workbench.

Specifically, the telescopic mechanism 7 comprises four support rods 71, a mounting table 72, hydraulic cylinders 73, positioning plates 74 and return springs 75, the four support rods 71 are fixedly connected to the upper end of the fixed support 1, the four support rods 71 are uniformly distributed on the outer side of the telescopic column 3, the upper ends of the four support rods 71 are fixedly connected with one mounting table 72, one hydraulic cylinder 73 is fixedly connected to the mounting table 72, the output end of the hydraulic cylinder 73 is fixedly connected to the upper end of the telescopic rod 55 of the adsorption mechanism 5, the positioning plates 74 are fixedly connected to the outer side of the telescopic column 3 and located above the fixed support 1, one return spring 75 is fixedly connected between the lower end of the positioning plate 74 and the upper end of the fixed support 1, the return spring 75 is located on the outer side of the telescopic column 3, the output end of the hydraulic cylinder 73 pushes the telescopic rod 55 to slide downwards, the return spring 75 drives the positioning plate 74 to slide downwards, and finally the sampling head 4 is driven to slide downwards between the fixed brackets 1.

Specifically, the linkage mechanism 8 comprises two linkage sliding plates 81, a connecting rotating rod 84, a driving gear plate 85, a driving gear 810 and a driven gear 812, the linkage sliding plates 81 are respectively connected to two sides of the upper end of the fixed support 1 in a sliding manner, the two linkage sliding plates 81 are corresponding to the telescopic column 3 and are symmetrically distributed at the upper end of the fixed support 1, a first mounting seat 82 is fixedly connected to one side of the upper end of the linkage sliding plate 81 close to the upper end, a second mounting seat 83 is fixedly connected to the telescopic column 3 corresponding to the first mounting seat 82, a connecting rotating rod 84 is rotatably connected between the first mounting seat 82 and the second mounting seat 83, a driving gear plate 85 is fixedly connected to the middle position of the lower end of each of the two linkage sliding plates 81, and a limit block 86 is fixedly connected to two sides of the lower end of each of the two linkage sliding plates 81, a limiting groove 87 is formed in the upper end of the fixed support 1 and in a position corresponding to the limiting block 86, the limiting blocks 86 are slidably connected in the corresponding limiting grooves 87, a linkage groove 88 is formed in each of the two sides of the fixed support 1 and in a position corresponding to the driving gear plate 85, a driving rotating shaft 89 and a driven rotating shaft 811 are rotatably connected in the linkage groove 88, the driving rotating shaft 89 is positioned above the driven rotating shaft 811, a driving gear 810 is fixedly connected to the driving rotating shaft 89, the upper end of the driving gear 810 is engaged with the driving gear plate 85, a driven gear 812 is fixedly connected to the driven rotating shaft 811, the upper end of the driven gear 812 is engaged with the driving gear 810, and the connecting rotating rod 84 is driven to rotate by upward sliding of the telescopic column 3, so that the connecting rotating rod 84 is far away from the telescopic column 3, one end of the connecting rotating rod 84 pulls the linkage sliding plate 81 to slide, and drives the driving gear plate 85 to slide toward the side close to the telescopic column 3, and finally drives the driving gear 810 and the driven gear 812 to rotate reversely.

Specifically, the sealing mechanism 9 includes a limiting sliding groove 91, a sealing sliding plate 92, a rotating groove 93, a rotating bead 94 and a driven gear plate 95, the limiting sliding grooves 91 are all opened on the side wall of the fixing support 1 and located below the detection box 2, the limiting sliding grooves 91 are all connected with one sealing sliding plate 92 in a sliding manner, the middle position of the upper end of the sealing sliding plate 92 is all connected with one driven gear plate 95 in a fixed manner, the driven gear plate 95 is meshed with the driven gear 812 of the linkage mechanism 8, the side wall of the lower end of the limiting sliding groove 91 is evenly provided with a group of rotating grooves 93, the rotating bead 94 is all connected in the rotating groove 93 in a rotating manner, the upper end of the rotating bead 94 passes through the rotating groove 93 and contacts with the lower end of the sealing sliding plate 92, the driving gear 810 and the driven gear 812 rotate in opposite directions, the sealing sliding plate 92 can slide towards the side close to the detection box 2, and, and seals the perforation 10.

When the device is used, firstly, the whole device is connected with an external power supply, and simultaneously, when sampling detection is carried out on the heat shrinkable film on a processing table, the hydraulic cylinder 73 is directly started, so that the output end of the hydraulic cylinder 73 pushes the telescopic rod 55 to slide downwards, the return spring 75 pulls the positioning plate 74 to slide downwards, the return spring 75 drives the positioning plate 74 to slide downwards, finally, the sampling head 4 is driven to slide downwards between the fixed supports 1, when the lower end of the sampling head 4 moves to be in contact with the cutting seat 64, the telescopic rod 55 pushes the piston plate 51 to slide downwards in the adsorption air cavity 13, so that the connecting rod 62 is driven to slide downwards in the connecting groove 63, the cutting blade 61 is positioned outside the sampling head 4 to slide downwards, the heat shrinkable film on the working table is cut and sampled, and after the heat shrinkable film is cut, the output end of the hydraulic cylinder 73 slides upwards, so as to drive the piston plate, and while driving the cutting blade 61 to slide upwards, the internal air pressure of the low adsorption air cavity 13 can be adjusted, so that the cut sample can be adsorbed at the lower end of the sampling head 4, when the piston plate 51 rises to the upper end of the adsorption air cavity 13, the piston plate 51 pushes the sampling head 4 to move upwards and pushes the telescopic column 3 to move upwards, so that the positioning plate 74 moves upwards, the reset spring 75 is stretched, and finally the sampling head 4 is pulled into the detection box 2, so that the sample can enter the detection box 2 along with the sampling head 4, in the process, the connecting rotating rod 84 is driven to rotate by the upward sliding of the telescopic column 3, so that one end of the connecting rotating rod 84, far away from the telescopic column 3, pulls the linkage sliding plate 81 to slide towards one side close to the telescopic column 3, and drives the driving gear plate 85 to slide towards one side close to the telescopic column 3, and finally drives the driving gear 810 and the driven gear 812 to rotate in reverse direction, and the sealing sliding plate 92 can slide towards one side close to the detection box 2, finally the sealing sliding plate 92 slides to the lower end of the perforation 10, the perforation 10 is sealed, finally the electric control valve 53 is opened, external air enters the adsorption air cavity 13 through the vent hole 56, a sample can fall to the upper end of the sealing sliding plate 92, the interior of the detection box 2 is heated through the heating plate 11, the heat shrinkage detection is carried out on the sample, after the detection is finished, the output end of the hydraulic cylinder 73 moves downwards, and through the linkage, the sealing sliding plate 92 can slide towards one side far away from the detection box 2, so that the sample on the sealing sliding plate 92 can be taken out of the detection box 2, the automatic sampling detection on the heat shrinkage of the heat shrinkage film is completed, and the troublesome operation that the manual sampling detection needs to be stopped for waiting in the production process of the heat shrinkage film is effectively avoided.

The invention has the beneficial effects that:

(1) according to the invention, the telescopic rod of the adsorption mechanism is pushed to slide by the output end of the hydraulic cylinder of the telescopic mechanism, so that the sampling head can be pushed to slide downwards, the shrink film is adsorbed, and finally the shrink film is driven to enter the detection box for the contractility detection, thereby realizing the automatic detection, avoiding the troublesome operation of placing the shrink film in the detection box after manual sampling, and further improving the detection efficiency of the heat shrinkable film.

(2) In the process of descending the sampling head, the cutting blade of the cutting mechanism can be inserted into the cutting hole, so that the detection device can quickly sample on a production line, the trouble that the production equipment needs to be stopped to sample when the detection device detects and samples is effectively avoided, and the normal production of the production equipment is not influenced in the sampling and detection process.

(3) According to the invention, through the rotation of the connecting rotating rod of the linkage mechanism, when the sampling head carries the shrink film to enter the detection box, the two sealing sliding plates of the sealing mechanism are driven to slide towards one side, so that the through hole at the lower end of the detection box can be sealed, the shrink film can be ensured to be detected in a relatively sealed environment, the heat loss in the detection box is reduced, the detection accuracy is increased, and the condition that the temperature is difficult to keep constant in the detection process because the shrink film is directly placed in an open heating environment is effectively avoided.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.