A thickness detection device for bag making machine

Abstract

The invention discloses a thickness detection device for a bag making machine, which relates to the technical field of bag making machines and comprises a flattening detection mechanism and a detection bracket installed on the top of the flattening detection mechanism, a winding mechanism is arranged on one side of the flattening detection mechanism, and a locking block is arranged inside the winding mechanism, the flattening detection mechanism comprises a conveying bracket, a conveying motor is fixedly installed on the back side of the conveying bracket, and the output end of the conveying motor is fixedly connected with a first sprocket transmission assembly, wherein one side of the first sprocket transmission assembly is symmetrically connected with conveying rollers, and the outer sides of two conveying rollers are transmission-connected with conveyor belts, wherein a detection trapezoidal block is fixedly installed at the top center position of the conveying bracket, and the longitudinal wrinkles of the plastic bag or the packaging bag can be eliminated by mutual expansion of the longitudinal pressing plates, so that the plastic bag and the packaging bag can be flattened on the detection trapezoidal block, which is convenient for thickness detection of the plastic bag or the packaging bag.

Description

Technical Field

[0001] The invention relates to the technical field of bag making machines, in particular to a thickness detection device for bag making machines. Background Art

[0002] Bags can be said to be indispensable daily necessities in daily life. Whether shopping in supermarkets or going out to buy groceries, whether it is food packaging or clothing transportation, bags are needed. During the production process of bags, due to temperature changes or die wear, uneven thickness may occur, resulting in too thin or too thick bags that seriously affect the quality. Therefore, thickness testing must be carried out after the bags are produced to reduce or even eliminate the appearance and outflow of defective products.

[0003] Publication No. CN218066399U discloses a thickness detection device for a bag making machine. By starting the motor, the motor output end drives the gear to rotate, the gear drives the toothed plate to move up and down, and the toothed plate synchronously drives the measuring instrument to move. When the measuring instrument needs to move forward and backward, the fixed block is pushed, and the fixed block slides forward and backward inside the slide slot, synchronously driving the measuring instrument to move forward and backward, thereby increasing the scope of applicable detection products, and there are no limitations when detecting plastic bags of different widths, and there will be no situation where the thickness detection device cannot detect the bag, thereby ensuring the production quality of plastic bags of different types and specifications, so that the thickness detection device on the bag making machine has a good use effect. By setting the slide slot to a T shape, the slide slot forms a limiting effect on the slider, thereby avoiding the separation between the slider and the slide slot, thereby ensuring the stability and firmness of the fixed block, and improving the accuracy of the thickness detection device in detecting bags. However, the patent still has the following problems in actual use:

[0004] Although the thickness detection device of the bag making machine can use the measuring instrument to detect the thickness of the bag, it is unable to flatten the bag when detecting the thickness of the bag, resulting in wrinkles on the bag during detection. When wrinkles appear on the bag, the accuracy of the measurement by the measuring instrument will be affected. Meanwhile, a flattening structure is also provided in the prior art to flatten the bag, but the bag cannot be flattened both horizontally and vertically at the same time, resulting in limited flattening effect and affecting the measurement accuracy of the measuring instrument.

[0005] Therefore, a thickness detection device for a bag making machine is proposed to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide a thickness detection device for a bag making machine to solve the problem that the thickness detection device for a bag making machine proposed in the above background technology can use a measuring instrument to detect the thickness of the bag, but when detecting the thickness of the bag, the bag cannot be flattened, resulting in wrinkles in the bag during detection. When wrinkles appear in the bag, the accuracy of the measurement by the measuring instrument will be affected. At the same time, a flattening structure is also set in the prior art to flatten the bag, but the bag cannot be flattened both horizontally and vertically at the same time, resulting in limited flattening effect and affecting the measurement accuracy of the measuring instrument.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a thickness detection device for a bag-making machine, comprising a flattening detection mechanism, and a detection bracket installed on the top of the flattening detection mechanism;

[0008] A winding mechanism is provided on one side of the flattening detection mechanism, and a clamping block is provided inside the winding mechanism;

[0009] Also includes:

[0010] The flattening detection mechanism comprises a conveying bracket, a conveying motor is fixedly mounted on one side of the back of the conveying bracket, and an output end of the conveying motor is fixedly connected to a first sprocket transmission assembly;

[0011] Wherein, one side of the first sprocket transmission assembly is symmetrically connected with a conveying roller, and the outer sides of the two conveying rollers are transmission-connected with a conveyor belt;

[0012] Among them, a detection trapezoidal block is fixedly installed at the top center position of the conveying bracket, and the first clamping brackets are symmetrically installed on both sides of the bottom of the detection trapezoidal block.

[0013] Preferably, a second clamping bracket is symmetrically installed on one side of the top of the detection trapezoidal block, and clamping sliding rods are fixedly installed inside the first clamping bracket and the second clamping bracket, and clamping sliding sleeves are slidably connected to the outer sides of the clamping sliding rods, and a clamping spring is fixedly installed on the bottom of the clamping sliding sleeve, and a clamping roller is rotatably connected between the two clamping sliding sleeves.

[0014] Preferably, a first motor cover is fixedly installed on one side of the bottom of the detection trapezoidal block, a mobile motor is fixedly installed on one side of the interior of the first motor cover, an output end of the mobile motor is fixedly connected to a second sprocket transmission assembly, one side of the second sprocket transmission assembly is symmetrically connected to a mobile threaded rod, and the outer side of the mobile threaded rod is threadedly connected to a mobile threaded sleeve.

[0015] Preferably, a lifting bracket is fixedly installed on the outer side of the movable threaded sleeve, a lifting motor is fixedly installed on the top of the lifting bracket on one side, a lifting threaded rod is fixedly connected to the output end of the lifting motor, the outer side of the lifting threaded rod is threadedly connected to the lifting threaded sleeve, a lifting plate is fixedly installed on one side of the lifting threaded sleeve, a lifting sliding sleeve is fixedly installed on the side of the lifting plate away from the lifting threaded sleeve, and the lifting sliding rod is slidably connected to the inside of the lifting sliding sleeve.

[0016] Preferably, a plurality of roller brackets are fixedly installed on one side of the bottom of the lifting plate, a guide roller is rotatably connected to the inner side of the bottom of the roller bracket, a plurality of first springs are fixedly installed on the side of the lifting plate away from the roller bracket, a transverse expansion plate is fixedly installed on the bottom of the first spring, a first bidirectional threaded rod is rotatably connected to one side of the inner part of the lifting plate, a longitudinal threaded sleeve is symmetrically threaded on the outer side of the first bidirectional threaded rod, a second spring is fixedly installed on the bottom of the two longitudinal threaded sleeves, a longitudinal clamping plate is fixedly installed on the bottom of the second spring, and meshing gears are fixedly connected at both ends of the first bidirectional threaded rod.

[0017] Preferably, support springs are fixedly installed inside the front and back sides of the detection trapezoidal block, a support plate is fixedly installed on the top of the support spring, a connecting plate is fixedly installed on the top of the support plate, a meshing rack is fixedly installed on the top of the connecting plate, the meshing rack is meshingly connected with the meshing gear, the detection bracket is fixedly installed on the top of the conveying bracket, a lifting cylinder is fixedly installed on the inner side of the top of the detection bracket, and a detection plate is fixedly installed on the bottom of the lifting cylinder.

[0018] Preferably, a detection sliding sleeve is fixedly installed around the detection plate, and the detection sliding sleeve is internally slidably connected to a detection sliding rod, a rotating bracket is symmetrically installed on one side of the bottom of the detection plate, a rotating motor is fixedly installed on the outer side of the rotating bracket on one side, the output end of the rotating motor is fixedly connected to a rotating worm, one side of the rotating worm is meshingly connected to a rotating worm wheel, an adjusting dial is fixedly installed on the bottom of the rotating worm wheel, an adjusting motor is fixedly installed on one side of the adjusting dial, an adjusting threaded rod is fixedly connected to the output end of the adjusting motor, the outer side of the adjusting threaded rod is threadedly connected to an adjusting threaded sleeve, and a microcomputer press gauge is fixedly installed on the bottom of the adjusting threaded sleeve.

[0019] Preferably, the winding mechanism includes a winding bracket, a second motor cover is fixedly installed on one side of the bottom of the winding bracket, a tensioning motor is fixedly installed on one side of the inner side of the second motor cover, the output end of the tensioning motor is fixedly connected to a third sprocket transmission assembly, a tensioning threaded rod is symmetrically installed on the top of the third sprocket transmission assembly, the outer sides of the two tensioning threaded rods are threadedly connected to tensioning threaded sleeves, a tensioning roller is rotatably connected between the two tensioning threaded sleeves, and the third motor cover is fixedly installed on one side of the front side of the winding bracket.

[0020] Preferably, a limiting motor is fixedly installed on one side of the interior of the third motor cover, and the output end of the limiting motor is fixedly connected to the fourth sprocket transmission assembly, and a limiting bidirectional threaded rod is symmetrically installed on one side of the fourth sprocket transmission assembly, and the outer sides of the two limiting bidirectional threaded rods are symmetrically threadedly connected to the limiting threaded sleeves, and a limiting plate is fixedly installed on the top of the two limiting threaded sleeves, and the inner side of the limiting plate is rotatably connected with a locking sleeve, and the locking block is locked with the locking sleeve, and a winding motor is fixedly installed on the outer side of the limiting plate on one side, and the output end of the winding motor is fixedly connected to the locking sleeve, and a winding roller is fixedly connected between the two locking blocks.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the thickness detection device for a bag making machine utilizes the guide roller inside the roller bracket to move laterally, which can eliminate the transverse wrinkles of the packaging bag or plastic bag. At the same time, utilizing the characteristics of the meshing connection between the meshing gear and the meshing rack, the longitudinal threaded sleeve can drive the longitudinal threaded sleeve and the second spring to move relative to each other under the action of the second spring, and the longitudinal wrinkles of the plastic bag or packaging bag can be eliminated by the mutual expansion of the longitudinal pressing plates, so that the plastic bag and the packaging bag can be flattened on the detection trapezoidal block, which is convenient for the thickness detection of the plastic bag or packaging bag. By starting the limit motor to drive the fourth sprocket transmission assembly and the limit bidirectional threaded rod to rotate, the limit threaded sleeve drives the limit plate to move relative to each other, thereby realizing the separation of the clamping sleeve and the clamping block, facilitating the rapid installation and replacement of the winding roller, and facilitating the uninterrupted winding of the plastic bag or packaging bag. The specific contents are as follows:

[0022] 1. By setting up the flattening detection mechanism, not only can the conveying motor be used to drive the first sprocket transmission assembly and the conveying roller to rotate, but also the conveying roller and the conveying belt can be rotated by utilizing the characteristics of the rotational connection between the conveying roller and the conveying belt, so as to transport the packaging bags or plastic bags on the surface of the conveying belt. By utilizing the characteristics of the sliding connection between the first clamping bracket and the second clamping bracket and the clamping sliding sleeve, the movement of the clamping roller can be realized, and the elastic force of the clamping spring can be used to clamp the plastic bag or packaging bag. The second sprocket transmission assembly and the moving threaded rod are driven to rotate by the moving motor, so that the moving threaded sleeve drives the lifting bracket to move, and the lifting plate is moved to the top side of the detection trapezoidal block. The lifting motor is started to drive the lifting threaded rod to rotate, so that the lifting threaded sleeve, the lifting sliding sleeve and the lifting plate are lifted and moved. The plastic bag or packaging bag is clamped by the first spring and the transverse flat plate, and the guide roller inside the roller bracket is used to move transversely, so as to eliminate the transverse wrinkles of the packaging bag or plastic bag. At the same time, by utilizing the characteristics of the meshing connection between the meshing gear and the meshing rack, the longitudinal The threaded sleeve drives the longitudinal threaded sleeve and the second spring to move relative to each other. The longitudinal wrinkles of the plastic bag or packaging bag can be eliminated by the mutual expansion of the longitudinal pressing plates, so that the plastic bag and the packaging bag can be flattened on the detection trapezoidal block, which is convenient for the thickness detection of the plastic bag or packaging bag. The elastic force of the supporting spring can drive the supporting plate and the connecting plate to move up and down, so that the meshing rack is always meshed and connected with the meshing gear. When the lifting plate rises and moves to the top side of the detection trapezoidal block, the two longitudinal pressing plates can be close to each other, so as to perform uninterrupted longitudinal flattening and transverse flattening. The lifting cylinder drives the detection plate to move up and down, so that the microcomputer press gauge can be moved up and down, and the thickness of the plastic bag or packaging bag can be detected. The rotating motor drives the rotating worm to rotate, and the meshing connection between the rotating worm and the rotating worm wheel is used to realize the rotation of the adjusting dial. At the same time, the adjusting motor is started to drive the adjusting threaded rod to rotate, so that the adjusting threaded sleeve drives the microcomputer press gauge to move, and the position of the microcomputer press gauge can be changed, so as to perform multi-point detection of the packaging bag or plastic bag and improve the accuracy of thickness detection.

[0023] 2. By setting up the winding mechanism, not only can the tensioning motor be used to drive the third sprocket transmission assembly and the tensioning threaded rod to rotate, so that the two tensioning threaded sleeves drive the tensioning roller to rise and fall, thereby pressing the packaging bag or plastic bag, which is convenient for adjusting the tension degree of winding, but also the winding motor is started to drive the locking sleeve to rotate, and the locking connection between the locking sleeve and the locking block is utilized to realize the rotation of the winding roller, thereby realizing the winding of the plastic bag or packaging bag, and the limiting motor is started to drive the fourth sprocket transmission assembly and the limiting bidirectional threaded rod to rotate, so that the limiting threaded sleeve drives the limiting plate to move relatively, thereby realizing the separation of the locking sleeve and the locking block, which is convenient for quick installation and replacement of the winding roller and uninterrupted winding of plastic bags or packaging bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the flattened detection mechanism cross section in the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the detection trapezoidal block in the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the movable threaded rod and the movable threaded sleeve in the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting plate in the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the transverse spreading plate and the longitudinal pressing plate in the present invention;

[0030] Figure 7 A schematic diagram of the three-dimensional structure of the meshing rack and the meshing gear in the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the cross section of the adjusting turntable in the present invention;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the winding mechanism in the present invention;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the tensioning roller and the limiting plate in the present invention;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the locking sleeve and the locking block in the present invention.

[0035] In the figure: 1, flattening detection mechanism; 101, conveying bracket; 102, conveying motor; 103, first sprocket transmission assembly; 104, conveying roller; 105, conveying belt; 106, detection trapezoidal block; 107, first clamping bracket; 108, second clamping bracket; 109, clamping sliding rod; 110, clamping sliding sleeve; 111, clamping spring; 112, clamping roller; 113, first motor cover; 114, moving motor; 115, second sprocket transmission assembly; 116, moving screw Threaded rod; 117, movable threaded sleeve; 118, lifting bracket; 119, lifting motor; 120, lifting threaded rod; 121, lifting threaded sleeve; 122, lifting plate; 123, roller bracket; 124, guide roller; 125, first spring; 126, transverse expansion plate; 127, first bidirectional threaded rod; 128, longitudinal threaded sleeve; 129, second spring; 130, longitudinal clamping plate; 131, support spring; 132, support plate; 133, connecting plate; 134, meshing Rack; 135, detection bracket; 136, lifting cylinder; 137, detection plate; 138, detection sliding rod; 139, detection sliding sleeve; 140, rotating bracket; 141, rotating motor; 142, rotating worm; 143, rotating worm wheel; 144, adjusting dial; 145, adjusting motor; 146, adjusting threaded rod; 147, adjusting threaded sleeve; 148, microcomputer press meter; 149, meshing gear; 150, lifting sliding sleeve; 151, lifting sliding rod; 2, collection Rolling mechanism; 201, winding bracket; 202, second motor cover; 203, tensioning motor; 204, third sprocket transmission assembly; 205, tensioning threaded rod; 206, tensioning threaded sleeve; 207, tensioning roller; 208, third motor cover; 209, limit motor; 210, fourth sprocket transmission assembly; 211, limit bidirectional threaded rod; 212, limit threaded sleeve; 213, limit plate; 214, locking sleeve; 215, winding motor; 216, locking block; 217, winding roller. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 11The present invention provides a technical solution: a thickness detection device for a bag making machine, comprising a flattening detection mechanism 1, and a detection bracket 135 installed on the top of the flattening detection mechanism 1, a winding mechanism 2 is arranged on one side of the flattening detection mechanism 1, and a locking block 216 is arranged inside the winding mechanism 2, the flattening detection mechanism 1 comprises a conveying bracket 101, a conveying motor 102 is fixedly installed on the back side of the conveying bracket 101, and the output end of the conveying motor 102 is fixedly connected to a first sprocket transmission assembly 103, wherein one side of the first sprocket transmission assembly 103 is symmetrically connected to a conveying roller 104, and the outer sides of the two conveying rollers 104 are transmission-connected to a conveyor belt 105, wherein a detection trapezoidal block 106 is fixedly installed at the top center position of the conveying bracket 101, first clamping brackets 107 are symmetrically installed on both sides of the bottom of the detection trapezoidal block 106, and second clamping brackets 108 are symmetrically installed on one side of the top of the detection trapezoidal block 106, and the insides of the first clamping bracket 107 and the second clamping bracket 108 are fixed A clamping sliding rod 109 is installed, and a clamping sliding sleeve 110 is slidably connected to the outer side of the clamping sliding rod 109. A clamping spring 111 is fixedly installed at the bottom of the clamping sliding sleeve 110. A clamping roller 112 is rotatably connected between the two clamping sliding sleeves 110. A first motor cover 113 is fixedly installed on one side of the bottom of the detection trapezoidal block 106. A moving motor 114 is fixedly installed on one side of the inner side of the first motor cover 113. The conveying motor 102 drives the first sprocket transmission assembly 103 and the conveying roller 112. 04 rotates, utilizing the characteristics of the rotational connection between the conveying roller 104 and the conveying belt 105 to realize the rotation of the conveying belt 105, and can transport the packaging bags or plastic bags on the surface of the conveying belt 105. Through the characteristics of the sliding connection between the clamping sliding rod 109 and the clamping sliding sleeve 110 inside the first clamping bracket 107 and the second clamping bracket 108, the movement of the clamping roller 112 can be realized, and utilizing the elastic force of the clamping spring 111, the clamping roller 112 can compress the plastic bags or packaging bags.

[0038] The output end of the mobile motor 114 is fixedly connected to the second sprocket transmission assembly 115, and a mobile threaded rod 116 is symmetrically connected to one side of the second sprocket transmission assembly 115. The outer side of the mobile threaded rod 116 is threadedly connected to a mobile threaded sleeve 117, and a lifting bracket 118 is fixedly installed on the outer side of the mobile threaded sleeve 117. A lifting motor 119 is fixedly installed on the top of one side of the lifting bracket 118. The output end of the lifting motor 119 is fixedly connected to a lifting threaded rod 120, and the outer side of the lifting threaded rod 120 is threadedly connected to a lifting threaded sleeve 121. A lifting plate 122 is fixedly installed on one side of the lifting plate 122. A lifting sliding sleeve 150 is fixedly installed on the side away from the lifting threaded sleeve 121, and a lifting sliding rod 151 is slidably connected inside the lifting sliding sleeve 150. A plurality of roller brackets 123 are fixedly installed on the bottom side of the lifting plate 122, and a guide roller 124 is rotatably connected to the inner side of the bottom of the roller bracket 123. A plurality of first springs 125 are fixedly installed on the side of the lifting plate 122 away from the roller bracket 123, and a transverse expansion plate 126 is fixedly installed on the bottom of the first spring 125. A first bidirectional threaded rod 127 is rotatably connected to the inner side of the lifting plate 122, and a longitudinally extending plate 126 is symmetrically threadedly connected to the outer side of the first bidirectional threaded rod 127. The second spring 129 is fixedly installed at the bottom of the two longitudinal threaded sleeves 128, and the longitudinal pressing plate 130 is fixedly installed at the bottom of the second spring 129. The second sprocket transmission assembly 115 and the moving threaded rod 116 are driven to rotate by the moving motor 114, so that the moving threaded sleeve 117 drives the lifting bracket 118 to move, and the lifting plate 122 is moved to the top side of the detection trapezoidal block 106. The lifting motor 119 is started to drive the lifting threaded rod 120 to rotate, so that the lifting threaded sleeve 121, the lifting sliding sleeve 150 and the lifting plate 122 are lifted and moved, and the first spring 125 and the horizontal expansion plate 126 are used. The plastic bag or packaging bag is compressed and the guide roller 124 inside the roller bracket 123 is used to move horizontally, which can eliminate the horizontal wrinkles of the packaging bag or plastic bag. At the same time, by utilizing the meshing connection between the meshing gear 149 and the meshing rack 134, the longitudinal threaded sleeve 128 can drive the longitudinal threaded sleeve 128 and the second spring 129 to move relative to each other under the action of the second spring 129. Through the mutual expansion of the longitudinal clamping plate 130, the longitudinal wrinkles of the plastic bag or packaging bag can be eliminated, and the plastic bag and packaging bag can be flattened on the detection trapezoidal block 106, which is convenient for thickness detection of the plastic bag or packaging bag.

[0039] Both ends of the first bidirectional threaded rod 127 are fixedly connected with meshing gears 149, support springs 131 are fixedly installed inside the front and back sides of the detection trapezoidal block 106, a support plate 132 is fixedly installed on the top of the support spring 131, a connecting plate 133 is fixedly installed on the top of the support plate 132, a meshing rack 134 is fixedly installed on the top of the connecting plate 133, and the meshing rack 134 is meshed and connected with the meshing gear 149, a detection bracket 135 is fixedly installed on the top of the conveying bracket 101, a lifting cylinder 136 is fixedly installed on the inner side of the top of the detection bracket 135, a detection plate 137 is fixedly installed on the bottom of the lifting cylinder 136, and a detection sliding sleeve 13 is fixedly installed around the detection plate 137. 9. The detection sliding sleeve 139 is internally slidably connected with a detection sliding rod 138. A rotating bracket 140 is symmetrically installed on one side of the bottom of the detection plate 137. The elastic force of the support spring 131 can drive the support plate 132 and the connecting plate 133 to move up and down, so that the meshing rack 134 is always meshed and connected with the meshing gear 149. When the lifting plate 122 rises and moves to the top side of the detection trapezoidal block 106, the two longitudinal clamping plates 130 are close to each other, so as to perform uninterrupted longitudinal and transverse flattening. The lifting cylinder 136 is used to drive the detection plate 137 to move up and down, so that the microcomputer press meter 148 can be lifted and moved, so as to detect the thickness of plastic bags or packaging bags.

[0040] A rotating motor 141 is fixedly installed on the outer side of the rotating bracket 140 on one side, and a rotating worm 142 is fixedly connected to the output end of the rotating motor 141, and a rotating worm 143 is meshedly connected to one side of the rotating worm 142, and an adjusting dial 144 is fixedly installed on the bottom of the rotating worm wheel 143, and an adjusting motor 145 is fixedly installed on one side of the adjusting dial 144, and an adjusting threaded rod 146 is fixedly connected to the output end of the adjusting motor 145, and an adjusting threaded sleeve 147 is threadedly connected to the outer side of the adjusting threaded rod 146, and the adjusting threaded sleeve 147 is threadedly connected to the outer side of the adjusting threaded sleeve 147. A microcomputer press gauge 148 is fixedly installed at the bottom, and the rotating motor 141 drives the rotating worm 142 to rotate. The rotating dial 144 is rotated by utilizing the meshing connection between the rotating worm 142 and the rotating worm wheel 143. At the same time, the adjusting motor 145 is started to drive the adjusting threaded rod 146 to rotate, so that the adjusting threaded sleeve 147 drives the microcomputer press gauge 148 to move, which can change the position of the microcomputer press gauge 148, thereby performing multi-point detection of packaging bags or plastic bags and improving the accuracy of thickness detection.

[0041] The winding mechanism 2 includes a winding bracket 201, a second motor cover 202 is fixedly installed on one side of the bottom of the winding bracket 201, a tensioning motor 203 is fixedly installed on one side of the inner part of the second motor cover 202, an output end of the tensioning motor 203 is fixedly connected to a third sprocket transmission assembly 204, a tensioning threaded rod 205 is symmetrically installed on the top of the third sprocket transmission assembly 204, the outer sides of the two tensioning threaded rods 205 are both threadedly connected to tensioning threaded sleeves 206, a tensioning roller 207 is rotatably connected between the two tensioning threaded sleeves 206, the tensioning motor 203 is used to drive the third sprocket transmission assembly 204 and the tensioning threaded rod 205 to rotate, so that the two tensioning threaded sleeves 206 drive the tensioning roller 207 to move up and down, thereby pressing the packaging bag or plastic bag, which is convenient for adjusting the tension degree of winding.

[0042] A third motor cover 208 is fixedly installed on one side of the front of the winding bracket 201, a limit motor 209 is fixedly installed on one side of the inner part of the third motor cover 208, and a fourth sprocket transmission assembly 210 is fixedly connected to the output end of the limit motor 209, and a limit bidirectional threaded rod 211 is symmetrically installed on one side of the fourth sprocket transmission assembly 210, and the outer sides of the two limit bidirectional threaded rods 211 are symmetrically threadedly connected to the limit threaded sleeves 212, and the tops of the two limit threaded sleeves 212 are fixedly installed with a limit plate 213, and the inner part of the limit plate 213 is rotatably connected with a clamping sleeve 214, and the clamping block 216 is clamped and connected with the clamping sleeve 214, and a winding motor 215 is fixedly installed on the outer side of the limit plate 213 on one side. The output end is fixedly connected to the locking sleeve 214, and a winding roller 217 is fixedly connected between the two locking blocks 216. The winding motor 215 is started to drive the locking sleeve 214 to rotate. The locking connection between the locking sleeve 214 and the locking block 216 can be used to realize the rotation of the winding roller 217, thereby realizing the winding of the plastic bag or packaging bag. The limiting motor 209 is started to drive the fourth sprocket transmission assembly 210 and the limiting bidirectional threaded rod 211 to rotate, so that the limiting threaded sleeve 212 drives the limiting plate 213 to move relatively, thereby realizing the separation of the locking sleeve 214 and the locking block 216, facilitating the rapid installation and replacement of the winding roller 217, and facilitating the uninterrupted winding of the plastic bag or packaging bag.

[0043] Working principle: Before using this thickness detection device for bag making machine, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Fig.11As shown, first, the tensioning motor 203 is used to drive the third sprocket transmission assembly 204 and the tensioning threaded rod 205 to rotate, so that the two tensioning threaded sleeves 206 drive the tensioning roller 207 to move up and down, thereby pressing the packaging bag or plastic bag, which is convenient for adjusting the tension degree of winding. At the same time, the winding motor 215 is started to drive the locking sleeve 214 to rotate. The locking connection between the locking sleeve 214 and the locking block 216 can be used to realize the rotation of the winding roller 217, thereby realizing the winding of the plastic bag or packaging bag. The fourth sprocket transmission assembly 210 and the limiting bidirectional threaded rod 211 are driven to rotate by starting the limiting motor 209, so that the limiting threaded sleeve 212 drives the limiting plate 213 to move relatively, thereby realizing the separation of the locking sleeve 214 and the locking block 216, which is convenient for quick installation and replacement of the winding roller 217 and uninterrupted winding of plastic bags or packaging bags.

[0044] Secondly, the conveying motor 102 is used to drive the first sprocket transmission assembly 103 and the conveying roller 104 to rotate, and the conveying roller 104 is used to rotate with the characteristic of the rotational connection between the conveying roller 104 and the conveyor belt 105 to realize the rotation of the conveyor belt 105, so that the packaging bags or plastic bags on the surface of the conveyor belt 105 can be transported. The first clamping bracket 107 and the second clamping bracket 108 have the characteristic of sliding connection with the clamping sliding sleeve 110, so that the movement of the clamping roller 112 can be realized, and the elastic force of the clamping spring 111 can be used to make the clamping roller 112 clamp the plastic bag or packaging bag. The second sprocket transmission assembly 115 and the moving threaded rod 116 are driven to rotate by the moving motor 114, so that the moving threaded sleeve 117 drives the lifting bracket 118 to move, and the lifting plate 122 is moved to the top side of the detection trapezoidal block 106, so as to start The dynamic lifting motor 119 drives the lifting threaded rod 120 to rotate, so that the lifting threaded sleeve 121, the lifting sliding sleeve 150 and the lifting plate 122 are lifted and moved, and the plastic bag or packaging bag is pressed by the first spring 125 and the transverse expansion plate 126. The guide roller 124 inside the roller bracket 123 is used for transverse movement, which can eliminate the transverse wrinkles of the packaging bag or plastic bag. At the same time, by utilizing the meshing connection between the meshing gear 149 and the meshing rack 134, the longitudinal threaded sleeve 128 can drive the longitudinal threaded sleeve 128 and the second spring 129 to move relative to each other under the action of the second spring 129. By the mutual expansion of the longitudinal clamping plate 130, the longitudinal wrinkles of the plastic bag or packaging bag can be eliminated, and the plastic bag and packaging bag can be flattened on the detection trapezoidal block 106, which is convenient for thickness detection of the plastic bag or packaging bag.

[0045] Finally, by utilizing the elastic force of the support spring 131, the support plate 132 and the connecting plate 133 can be driven to move up and down, so that the meshing rack 134 is always meshed and connected with the meshing gear 149, and when the lifting plate 122 rises and moves to the top side of the detection trapezoidal block 106, the two longitudinal pressing plates 130 can be brought close to each other, thereby performing uninterrupted longitudinal flattening and transverse flattening, and the lifting cylinder 136 can be used to drive the detection plate 137 to move up and down, so that the microcomputer press meter 148 can be moved up and down, and the plastic The thickness detection of material bags or packaging bags is carried out by rotating the motor 141 to drive the rotating worm 142 to rotate, and utilizing the meshing connection between the rotating worm 142 and the rotating worm wheel 143 to realize the rotation of the adjusting dial 144. At the same time, the adjusting motor 145 is started to drive the adjusting threaded rod 146 to rotate, so that the adjusting threaded sleeve 147 drives the microcomputer press gauge 148 to move, which can change the position of the microcomputer press gauge 148, thereby performing multi-point detection of packaging bags or plastic bags and improving the accuracy of thickness detection.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thickness detection device for a bag making machine, comprising a flattening detection mechanism (1), and a detection bracket (135) mounted on the top of the flattening detection mechanism (1); A winding mechanism (2) is provided on one side of the flattening detection mechanism (1), and a locking block (216) is provided inside the winding mechanism (2); It is characterized in that Also includes: The flattening detection mechanism (1) comprises a conveying bracket (101), a conveying motor (102) being fixedly mounted on a back side of the conveying bracket (101), and a first sprocket transmission assembly (103) being fixedly connected to an output end of the conveying motor (102); Wherein, one side of the first sprocket transmission assembly (103) is symmetrically connected to a conveying roller (104), and the outer sides of the two conveying rollers (104) are transmission-connected to a conveying belt (105); Wherein, a detection trapezoidal block (106) is fixedly installed at the center position of the top of the conveying bracket (101), and first pressing brackets (107) are symmetrically installed on both sides of the bottom of the detection trapezoidal block (106); A second clamping bracket (108) is symmetrically mounted on one side of the top of the detection trapezoidal block (106); a clamping sliding rod (109) is fixedly mounted inside the first clamping bracket (107) and the second clamping bracket (108); a clamping sliding sleeve (110) is slidably connected to the outer side of the clamping sliding rod (109); a clamping spring (111) is fixedly mounted on the bottom of the clamping sliding sleeve (110); and a clamping roller (112) is rotatably connected between the two clamping sliding sleeves (110); A first motor cover (113) is fixedly mounted on one side of the bottom of the detection trapezoidal block (106); a moving motor (114) is fixedly mounted on one side of the interior of the first motor cover (113); an output end of the moving motor (114) is fixedly connected to a second sprocket transmission assembly (115); a moving threaded rod (116) is symmetrically connected to one side of the second sprocket transmission assembly (115); and a moving threaded sleeve (117) is threadedly connected to the outer side of the moving threaded rod (116); A lifting bracket (118) is fixedly mounted on the outer side of the movable threaded sleeve (117); a lifting motor (119) is fixedly mounted on the top of the lifting bracket (118) on one side; a lifting threaded rod (120) is fixedly connected to the output end of the lifting motor (119); the outer side of the lifting threaded rod (120) is threadedly connected to the lifting threaded sleeve (121); a lifting plate (122) is fixedly mounted on one side of the lifting threaded sleeve (121); a lifting sliding sleeve (150) is fixedly mounted on the side of the lifting plate (122) away from the lifting threaded sleeve (121); and the lifting sliding sleeve (150) is slidably connected to the lifting sliding rod (151) inside. A plurality of roller brackets (123) are fixedly mounted on one side of the bottom of the lifting plate (122); a guide roller (124) is rotatably connected to the inner side of the bottom of the roller bracket (123); a plurality of first springs (125) are fixedly mounted on the side of the lifting plate (122) away from the roller bracket (123); a transverse expansion plate (126) is fixedly mounted on the bottom of the first spring (125); a first bidirectional threaded rod (127) is rotatably connected to the inner side of the lifting plate (122); a longitudinal threaded sleeve (128) is symmetrically threadedly connected to the outer side of the first bidirectional threaded rod (127); a second spring (129) is fixedly mounted on the bottom of the two longitudinal threaded sleeves (128); a longitudinal pressing plate (130) is fixedly mounted on the bottom of the second spring (129); and meshing gears (149) are fixedly connected to both ends of the first bidirectional threaded rod (127); Support springs (131) are fixedly installed inside the front and back sides of the detection trapezoidal block (106); a support plate (132) is fixedly installed on the top of the support spring (131); a connecting plate (133) is fixedly installed on the top of the support plate (132); a meshing rack (134) is fixedly installed on the top of the connecting plate (133); the meshing rack (134) is meshingly connected to a meshing gear (149); the detection bracket (135) is fixedly installed on the top of the conveying bracket (101); a lifting cylinder (136) is fixedly installed on the inner side of the top of the detection bracket (135); and a detection plate (137) is fixedly installed on the bottom of the lifting cylinder (136).

2. A thickness detection device for a bag making machine according to claim 1, characterized in that: A detection sliding sleeve (139) is fixedly installed around the detection plate (137), and a detection sliding rod (138) is slidably connected inside the detection sliding sleeve (139). A rotating bracket (140) is symmetrically installed on one side of the bottom of the detection plate (137), and a rotating motor (141) is fixedly installed on the outer side of the rotating bracket (140) on one side. The output end of the rotating motor (141) is fixedly connected to a rotating worm (142), and one side of the rotating worm (142) is meshingly connected to a rotating worm wheel (143). An adjusting dial (144) is fixedly installed on the bottom of the rotating worm wheel (143), and an adjusting motor (145) is fixedly installed on one side of the adjusting dial (144). An adjusting threaded rod (146) is fixedly connected to the output end of the adjusting motor (145), and an adjusting threaded sleeve (147) is threadedly connected to the outer side of the adjusting threaded rod (146), and a microcomputer press meter (148) is fixedly installed on the bottom of the adjusting threaded sleeve (147).

3. The thickness detection device for a bag making machine according to claim 1, characterized in that: The winding mechanism (2) comprises a winding bracket (201), a second motor cover (202) being fixedly mounted on one side of the bottom of the winding bracket (201), a tensioning motor (203) being fixedly mounted on one side of the interior of the second motor cover (202), an output end of the tensioning motor (203) being fixedly connected to a third sprocket transmission assembly (204), a tensioning threaded rod (205) being symmetrically mounted on the top of the third sprocket transmission assembly (204), the outer sides of the two tensioning threaded rods (205) being threadedly connected to tensioning threaded sleeves (206), a tensioning roller (207) being rotatably connected between the two tensioning threaded sleeves (206), and a third motor cover (208) being fixedly mounted on one side of the front of the winding bracket (201).

4. A thickness detection device for a bag making machine according to claim 3, characterized in that: A limit motor (209) is fixedly mounted on one side of the interior of the third motor cover (208); the output end of the limit motor (209) is fixedly connected to a fourth sprocket transmission assembly (210); a limit bidirectional threaded rod (211) is symmetrically mounted on one side of the fourth sprocket transmission assembly (210); the outer sides of the two limit bidirectional threaded rods (211) are symmetrically threadedly connected to limit threaded sleeves (212); a limit plate (213) is fixedly mounted on the tops of the two limit threaded sleeves (212); a locking sleeve (214) is rotatably connected to the interior of the limit plate (213); the locking block (216) is locked and connected to the locking sleeve (214); a winding motor (215) is fixedly mounted on the outer side of the limit plate (213) on one side; the output end of the winding motor (215) is fixedly connected to the locking sleeve (214); and a winding roller (217) is fixedly connected between the two locking blocks (216).

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