WO2018094913A1 - 一种半自动热收缩包装机 - Google Patents

一种半自动热收缩包装机 Download PDF

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Publication number
WO2018094913A1
WO2018094913A1 PCT/CN2017/076594 CN2017076594W WO2018094913A1 WO 2018094913 A1 WO2018094913 A1 WO 2018094913A1 CN 2017076594 W CN2017076594 W CN 2017076594W WO 2018094913 A1 WO2018094913 A1 WO 2018094913A1
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WO
WIPO (PCT)
Prior art keywords
frame
sliding
sealing
rod
conveyor belt
Prior art date
Application number
PCT/CN2017/076594
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English (en)
French (fr)
Inventor
厉勇
Original Assignee
浙江鼎业机械设备有限公司
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Publication of WO2018094913A1 publication Critical patent/WO2018094913A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146—Closing bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat

Definitions

  • the present invention relates to a film sealing machine, and more particularly to a semi-automatic heat shrink packaging machine.
  • Heat shrinking machine also known as shrinking machine, shrink packaging machine
  • shrinking machine shrink packaging machine
  • Heat shrinking machine is one of the more advanced packaging methods in the market. In addition to its own advantages, it can also reduce the possibility of products being dismantled and stolen; suitable for tight packaging and tray packaging of multiple items. Heat shrinking machines are widely used in glass bottles, styrofoam, cartons, toys, electronics, electrical appliances, stationery, books, records, hardware tools, daily necessities, pharmaceuticals, cosmetics, beverages, fruits, commemorative labels and other packaging.
  • the heat shrinking machine generally comprises two conveyor belts arranged in the front-rear direction, one for conveying the sleeve-finished film to be packaged, on which the sealing and cutting device is arranged, and the other one is placed above the heat-shrinking device.
  • the prior art adjusts the height of the conveyor belt disposed close to the sealing and cutting device.
  • the knife and the sealing block seal the film in the middle of the package to be packaged, which forms a height difference between the two conveyor belts.
  • the prior art guides the package to be smoothly transitioned between the conveyor belts.
  • the object to be packaged has a large inclination when it is switched between the conveyor belts, and dumping occurs, and the film wrapped around the object to be packaged is in a fluffy state at this time, which is prone to offset, and the position of the sealing and cutting line occurs.
  • the offset is such that the sealing and cutting line of the film after heat shrinking is not in the middle of the package to be packaged, and the packaging quality is poor and unattractive.
  • a semi-automatic heat shrink packaging machine The utility model is characterized in comprising: a frame, wherein the frame is provided with a heat shrinking device, a sealing and cutting seat, a heat sealing blade holder, a first conveyor belt and a second conveyor belt, wherein the sealing and cutting seat is arranged above the first conveyor belt, the first A conveyor belt and a second conveyor belt are sequentially disposed in a front-rear direction, the first conveyor belt is adapted to a height of the second conveyor belt, the second conveyor belt is disposed in the heat shrink device, and the sealing and cutting seat surrounds two adjacent sides of the first conveyor belt Provided that one side of the heat sealing blade holder is hinged on the frame, and a heat sealing cutter is arranged thereon, and the heat sealing knife holder rotates with the hinge as an axis, so that the heat sealing cutter is close to or away from the sealing and cutting seat.
  • the sealing seat and the heat sealing tool holder can be moved up and down to adjust
  • a support plate is connected below the sealing and cutting seat, the heat sealing blade holder is hinged on the support plate, and the support plate is provided with a driving threaded hole, and the frame is rotatable a threaded rod extending in a vertical direction, the threaded rod being screwed to the drive threaded hole; or a support plate connected to the lower side of the sealing and cutting seat, the heat sealing blade holder being hinged on the support plate, the support plate A lifting rack extending in a vertical direction is disposed thereon, and the lifting gear is rotatably mounted on the frame, and the lifting gear meshes with the lifting rack.
  • the sealing and cutting seat comprises a first seat and a second seat arranged perpendicularly to each other, and the supporting plate has two pieces, one of which is connected below the first seat and the other is connected below the second seat.
  • a heat-resistant knife holder is hinged on a support plate facing away from the first seat, and two support plates are respectively provided with a transmission threaded hole, and the screw has two wires, respectively Threaded with two drive threaded holes.
  • the frame is provided with a mounting frame, the mounting frame is disposed under the support plate, and the mounting frame is mounted with a driving mechanism for driving the rotation of the screw rod, and the driving mechanism includes a handle a drive shaft, a driven shaft, a chain, and two transmission rods are coaxially disposed with a transmission gear, the chain meshes with two transmission gears, and the driven shaft and one of the two screw rods
  • the root is coaxially fixed, and a driven bevel gear is coaxially disposed thereon, and the driving shaft is horizontally disposed on the mounting frame, and the same
  • the shaft is provided with a driving bevel gear that meshes with the driving bevel gear, and the handle is detachably mounted at one end of the driving shaft facing away from the driving bevel gear.
  • the support plate is provided with a guiding block
  • the guiding block is provided with a guiding hole
  • the frame is provided with a guiding rod extending in a vertical direction, and the guiding rod is inserted into the guiding In the hole, the guide block can slide along the guide bar.
  • the frame is provided with a sliding frame, and the first conveyor belt, the sealing and cutting seat and the heat sealing blade holder are disposed on the sliding frame, and the sliding frame can be relatively hot on the frame.
  • the shrinking device slides left and right to adjust the relative position of the first conveyor belt and the second conveyor belt.
  • the sliding frame is provided with a sliding block
  • the sliding block is provided with a sliding hole
  • the frame is provided with a sliding bar
  • the sliding bar is horizontally disposed and Both ends extend in the front-rear direction, and the sliding bar is inserted into the sliding hole, and the sliding block can slide along the sliding bar.
  • the sliding block has four, two sets are respectively mounted on opposite sides of the sliding frame, the sliding bar has two, and the two sliding bars are arranged in parallel with each other. Each of the sliding bars passes through a set of slip blocks.
  • a fixing mechanism for fixing the sliding frame comprising a long rack, a short rack, a fixing frame, a swinging block, and a tie rod, the long rack being mounted on the frame
  • the fixing frame is mounted on the sliding frame, and is located above the long rack.
  • the fixing frame is provided with a sliding hole extending in a vertical direction, and the top end of the short rack is provided with a sliding bar, and the sliding frame is provided. The rod is inserted into the sliding hole, and the sliding rod is slidable in the sliding hole.
  • the sliding rod is laterally disposed with a driving rod
  • the fixing frame is provided with a waist hole in a vertical direction, the waist hole Interconnecting with the sliding hole, the driving rod protrudes from the waist hole
  • the swinging block is hinged on the fixing frame, one end of the swinging block is provided with a dialing portion for pushing the driving rod upward, and the other end is provided with a connecting portion, one end of the pull rod is hinged to the connecting portion, and the other end is provided with a grip portion for grasping
  • the short rack is engaged with the long rack from above, and the short rack is matched with the long rack Locking, when the pull rod moves outward, pull the swing block to rotate, so that the toggle portion rotates upward, and the drive rod is pushed up to raise the short rack, thereby unlocking the short rack and the long rack.
  • a side of the sliding frame near the grip portion is provided with a cover plate, the cover plate is provided with a through hole, the pull rod is disposed in the through hole, and the grip portion is connected Extending the hole, the pull rod is slidable in the through hole, the limit rod is fixed on the pull rod, the rod is sleeved with a spring, and the spring and the limiting piece are disposed inside the cover, the spring One end is placed against the cover plate, and the other end is placed against the limit piece, and the pull rod is pushed inward.
  • the beneficial effect of the invention is that by changing the upper and lower positions of the sealing and cutting seat, the position of the sealing cutter and the sealing and cutting seat is changed relative to the height of the conveyor belt, and when the boxes of different heights are packaged, the closed position can be adjusted to the middle of the box, located in the box.
  • the closed line in the middle has a uniform force after heat shrinkage and a firm structure.
  • the invention changes the closed position of the film on the box by changing the position of the sealing and cutting seat, and adjusts the position of the sealing and cutting line by adjusting one of the conveyor belts, so as to avoid forming a height difference between the conveyor belts, and avoiding the height difference of the box during the conveying process.
  • Tilting occurs to avoid rolling of the film caused by the tilt of the box, avoiding the inclination of the closed line caused by the rolling of the film, thereby avoiding the imbalance of the force caused by the inclination of the closed line after the heat shrinkage, and the heat shrinkage of the film is improved compared with the prior art.
  • Figure 1 is a structural view of the present invention
  • Figure 2 is an internal structural view of the present invention
  • Figure 3 is an overall structural view of the sealing and cutting seat and its driving mechanism
  • Figure 4 is a partial structural view of the sealing and cutting seat and its driving mechanism
  • Figure 5 is a structural view of the heat sealing blade holder and its driving mechanism
  • Figure 6 is a structural view of the fixing mechanism.
  • a semi-automatic heat shrink packaging machine of the present embodiment includes a frame 1 , and the frame 1 is provided with a heat shrink device 2 , a sealing and cutting seat 3 , and a heat sealing knife.
  • a frame 4 a first conveyor belt 5 and a second conveyor belt 6, the sealing and cutting seat 3 being disposed above the first conveyor belt 5, the first conveyor belt 5 and the second conveyor belt 6 being sequentially disposed in the front-rear direction, the first conveyor belt 5 Adapted to the height of the second conveyor belt 6 (the adaptation here means that the height of the conveying surface of the first conveyor belt 5 and the height of the conveying surface of the second conveyor belt 6 have a ratio such that the film does not shift during transmission).
  • the second conveyor belt 6 is disposed in the heat shrink device 2, and the sealing and cutting seat 3 surrounds the first conveyor belt 5 Adjacent to the two sides, one side of the heat sealing blade holder 4 is hinged on the frame 1, and a heat sealing cutter 7 is disposed thereon, and the heat sealing blade holder 4 rotates with the hinge as an axis to make the heat sealing cutter 7 is close to or away from the sealing seat 3, and the sealing and cutting seat 3 and the heat sealing tool holder 4 can move up and down. Seal height adjustment of the distance between the tangent to the first belt 5.
  • the operator activates the power switch, preheats the machine, causes the heat sealing cutter 7 to heat up to a certain temperature, then puts the package to be packaged into the folded film, and then deposits the film with the built-in package on the first conveyor belt 5, and then The film is stretched and placed on the sealing and cutting seat 3, and the sealing and cutting device is activated by the trigger.
  • the heat sealing blade holder 4 is pushed and rotated by a cylinder 37 to rotate the heat sealing cutter 7 toward the sealing and cutting seat 3, and the heat sealing cutter 7 and the sealing and cutting seat are heat sealed.
  • the three phases are in conflict with each other to thermally deform the film, and the package to be packaged is enclosed in the film.
  • the cylinder 37 is returned to drive the heat sealing blade holder 4 back, and then the first conveyor belt 5 and the second conveyor belt 6 are activated, the first conveyor belt 5
  • the film and the object to be packaged are conveyed to the second conveyor belt 6, and the second conveyor belt 6 feeds the film and the object to be packaged into the heat shrink device 2, and the film is thermally deformed in the heat shrink device 2 to shrink to the surface of the object to be packaged, second
  • the conveyor belt 6 feeds the heat-shrinkable package to be sent out of the heat shrink device 2.
  • the sealing and cutting lines are located in the middle of the object to be packaged by the up and down movement of the sealing block 3 and the heat sealing blade holder 4.
  • the film does not shift during transportation, avoiding the offset of the sealing and cutting line due to the film offset, ensuring that the sealing and cutting line is located in the portion to be packaged, and improving the packaging quality.
  • a support plate 8 is connected below the sealing and cutting seat 3, and the heat sealing blade holder 4 is hinged on the support plate 8.
  • the support plate 8 is provided with a transmission threaded hole.
  • the frame 1 is rotatably disposed with a threaded rod 9 extending in a vertical direction, the threaded rod 9 being screwed to the drive threaded hole; or a support plate 8 is connected below the sealing and cutting seat 3, the heat seal
  • the tool holder 4 is hinged on a support plate 8, and the support plate 8 is provided with a lifting rack extending in a vertical direction, and the lifting frame is rotatably mounted on the frame 1, the lifting gear and the lifting rack Engage.
  • the screw rod 9 is rotated to drive the sealing and cutting seat 3 and the heat sealing tool holder 4 to move up and down
  • the structure is simple, the operation is convenient, and the operation is stable; or the lifting gear is rotated to drive the lifting rack to move up and down.
  • the sealing and cutting seat 3 and the heat sealing tool holder 4 are moved up and down.
  • the sealing and cutting seat 3 includes a first seat and a second seat which are disposed perpendicularly to each other, and the supporting plate 8 has two pieces, one of which is connected under the first seat and the other is connected a lower side of the second seat facing away from the first seat, the heat sealing blade holder 4 is hinged on the support plate 8 facing away from the first seat, and the two supporting plates 8 are respectively provided with a driving threaded hole.
  • the lead screw 9 has two wires which are respectively screwed to the two drive screw holes.
  • the two support plates 8 support the sealing and cutting seat 3 from both sides, so that the sealing and cutting seat 3 is evenly stressed during the process of moving up and down, and the lifting is more stable.
  • the frame 1 is provided with a mounting frame 10 disposed under the supporting plate 8 on which the rotating screw 9 is driven for driving.
  • the driving mechanism includes a handle 11, a driving shaft 12, a driven shaft 13, and a chain 14.
  • the two screw rods 9 are coaxially provided with a transmission gear 36, the chain 14 and the two transmission gears 36.
  • Engaging the driven shaft 13 is coaxially fixed with one of the two screw rods 9, and a driven bevel gear 15 is coaxially disposed thereon, and the driving shaft 12 is horizontally disposed on the mounting frame 10,
  • the driving bevel gear 16 is coaxially disposed, and the driven bevel gear 15 is meshed with the driving bevel gear 16.
  • the handle 11 is detachably mounted at one end of the driving shaft 12 facing away from the driving bevel gear 16. The operator rotates the handle 11 to drive the driving shaft 12 to rotate, and is driven by the driving bevel gear 16 and the driven bevel gear 15 to drive the driven shaft 13 to rotate, thereby driving the two screw rods 9 to rotate synchronously, and driving the sealing and cutting seat 3 to smoothly move up and down. .
  • the support plate 8 is provided with a guiding block 17
  • the guiding block 17 is provided with a guiding hole
  • the frame 1 is provided with a guiding rod 18 extending in a vertical direction.
  • the guide rod 18 is inserted into the guide hole, and the guide block 17 is slidable along the guide rod 18.
  • the guide bar 18 guides the support frame 8 to slide down, preventing the support frame 8 from shifting during the downward sliding movement, thereby preventing the sealing and cutting seat 3 from shifting and making the sealing and cutting seat 3 move more smoothly.
  • the frame 1 is provided with a sliding frame 19, and the first conveyor belt 5, the sealing seat 3, and the heat sealing tool holder 4 are disposed on the sliding frame 19, and the sliding The frame 19 is slidable on the frame 1 relative to the heat shrink device 2 to adjust the relative position of the first conveyor belt 5 and the second conveyor belt 6.
  • the package to be packaged is placed close to both sides of the heat sealing cutter 7 so that the sealing film wrapped around the package is suitable in size and is not hot. Agglomerate when contracted.
  • the object to be packaged needs to be moved to the center of the heat shrinkable device 2, so that the film can be uniformly shrunk on the object to be packaged, and when the size of the object to be packaged changes, the package to be packaged cannot be made.
  • the object is located in the middle of the heat shrink device 2.
  • the existing semi-automatic heat shrink packaging machine guides the object to be packaged to an intermediate position of the heat shrink device 2 through a guide sheet.
  • the film is in a fluffy state when it is not contracted, and during the movement along the guide sheet, the film may be displaced, causing the film to be cut and cut. The offset is reduced to reduce the quality and aesthetics of the package.
  • the invention moves the first conveyor belt 5, the sealing and cutting seat 3 and the heat sealing cutter 7 to the left and right by the arrangement of the sliding frame 19, so that the different sizes of the articles to be packaged are in front of the center position of the heat shrinking device 2 during sealing and cutting.
  • the packaged material after the sealing and cutting is conveyed to the heat shrinking device 2 through the first conveyor belt 5 and the second conveyor belt 6 for heat shrinkage, and the film does not transmit the offset during the conveying process, so that the sealing and cutting line is kept at the center of the object to be packaged, and the packaging is improved. Quality and aesthetics of the package.
  • the sliding frame 19 is provided with a sliding block 20, the sliding block 20 is provided with a sliding hole, and the frame 1 is provided with a sliding rod 21,
  • the slide bar 21 is horizontally disposed and both ends extend in the front-rear direction, and the slide bar 21 is inserted into the slide hole, and the slide block 20 is slidable along the slide bar 21.
  • the sliding block 20 is slid on the sliding rod 21 to realize the left and right sliding of the sliding frame 19, and the structure is simple and the operation is reliable.
  • the sliding block 20 has four, two sets are respectively mounted on opposite sides of the sliding frame 19, the sliding rod 21 has two, and two sliding The rods 21 are arranged parallel to each other, and each of the sliding rods 21 passes through a set of the sliding blocks 20.
  • This structure supports the slide frame 19 from a plurality of points so that the slip frame 19 does not shift due to uneven force during the slipping process, so that the slide frame 19 smoothly slides.
  • a fixing mechanism for fixing the sliding frame 19 is further included, the fixing mechanism includes a long rack 22, a short rack 23, a fixing bracket 24, a swinging block 25, and a tie rod 26,
  • the long rack 22 is mounted on the frame 1.
  • the mounting bracket 24 is mounted on the sliding frame 19 above the long rack 22, and the mounting bracket 24 is provided with a sliding hole extending in the vertical direction.
  • the top end of the short rack 23 is provided with a sliding rod 27, the sliding rod 27 is inserted into the sliding hole, the sliding rod 27 is slidable in the sliding hole, and the driving rod 28 is laterally disposed on the sliding rod 27,
  • the fixing frame 24 is provided with a waist hole 29 in a vertical direction, the waist hole 29 communicates with the sliding hole, the driving rod 28 protrudes from the waist hole 29, and the swinging block 25 is hingedly fixed.
  • one end of the swinging block 25 is provided with a dialing portion 30 for pushing up the driving rod 28, and the other end is provided with a connecting portion 31, one end of the pulling rod 26 and the connecting portion 31 Hinged, the other end is provided with a grip portion 32 for grasping, the short rack 23 meshes with the long rack 22 from above, and locks the short rack 23 with the long rack 22 when the pull rod 26 is outward Moving, pulling the swinging block 25 to rotate, the dialing portion 30 is rotated upward, and the driving lever 28 is pushed up to lift the short rack 23, thereby releasing the locking of the short rack 23 and the long rack 22.
  • the short rack 23 and the long rack 22 are in mesh with each other to prevent the slip frame 19 from accidentally slipping; when the shift frame 19 needs to be moved, the operator pulls the grip portion 32 outward, and pulls the pull rod 26 to move outward.
  • the swinging block 25 is rotated to rotate the dialing portion 30 upward, the dialing portion 30 is in contact with the driving rod 28, and the sliding rod 27 is pushed upward to separate the short rack 23 from the long rack 22, and the operator pushes the slip at this time.
  • the frame 19 slides the slide frame 19 to adjust the position of the first conveyor belt 5. After the adjustment, the operator pushes the pull rod 26 inward to rotate the dial 30 downward, and is separated from the drive rod 28 due to gravity.
  • the short rack 23 moves downward, meshes with the long rack 22, and fixes the slide frame 19.
  • a side of the sliding frame 19 adjacent to the grip portion 32 is provided with a cover plate 33.
  • the cover plate 33 is provided with a through hole, and the pull rod 26 is disposed in the through hole.
  • the pull portion 32 protrudes from the through hole, the pull rod 26 can slide in the through hole, the limit rod 35 is fixed on the pull rod 26, and the pull rod 26 is sleeved with a spring 34, the spring 34 And a limiting piece 35 is disposed inside the cover plate 33.
  • One end of the spring 34 bears against the cover plate 33, and the other end abuts against the limiting piece 35, and pushes the pulling rod 26 inward.

Abstract

一种半自动热收缩包装机，包括机架（1），机架（1）上设置有热收缩装置（2）、封切座（3）、热封刀架（4）、第一传送带（5）和第二传送带（6），热封刀架（4）上设置有热封切刀（7），热封刀架（4）以铰接处为轴进行旋转，使热封切刀（7）靠近或远离封切座（3），封切座（3）可上下移动。所述包装机通过改变封切座（3）的上下位置，以改变封切刀（7）与封切座（3）闭合的位置相对传送带的高低，在包装不同高度的箱子时，能将闭合位置调节到箱子的中部，水平地位于箱子中部的闭合线在热收缩后受力均匀，包装结构牢固。

Description

一种半自动热收缩包装机 技术领域
本发明涉及一种封膜机，更具体的说是涉及一种半自动热收缩包装机。
背景技术
热收缩机也称收缩机，收缩包装机，是市场比较先进的包装方法之一。除包含自身的优势外，还可减低产品被拆、被窃的可能性；适用于多件物品紧包装和托盘包装。热收缩机被广泛应用于玻璃瓶、发泡胶、纸盒、玩具、电子、电器、文具、图书、唱片、五金工具、日用品、药品、化妆品、饮料、水果、纪念标签等物品包装。
热收缩机一般包括两条沿前后方向设置的传送带，一条用于输送套完膜的待包装物，其上设置有封切装置；另一条进入热收缩装置上方。在包装不同尺寸的物品时，需要调整待包装物上的封切线的位置以使薄膜在收缩后均匀的分布在带包装物上，现有技术通过调节靠近封切装置设置的传送带的高低，使封切刀与封切座在待包装物的中部封切薄膜，这种方式会在两条传送带间形成高度差，现有技术通过引导板使待包装物能较平稳的在传送带间转换。然而当高度差较大时，待包装物在传送带间转换时发生倾斜较大，会发生倾倒，包裹在待包装物外的薄膜此时处于蓬松状态，容易发生偏移，使封切线的位置发生偏移，从而导致热收缩后薄膜的封切线不在待包装物的中部，包装质量差且不美观。
发明内容
针对现有技术存在的不足，本发明的目的在于提供一种半自动热收缩包装机，在能调节封切线的位置的基础上，使薄膜在输送过程中不发生偏移。
为实现上述目的，本发明提供了如下技术方案：一种半自动热收缩包装机， 其特征在于：包括机架，所述机架上设置有热收缩装置、封切座、热封刀架、第一传送带和第二传送带，所述封切座设置在第一传送带的上方，所述第一传送带与第二传送带沿前后方向依次设置，所述第一传送带与第二传送带高度相适配，所述第二传送带设置在热收缩装置内，所述封切座环绕第一传送带的相邻两边设置，所述热封刀架的一侧铰接在机架上，其上设置有热封切刀，所述热封刀架以铰接处为轴进行旋转，使热封切刀靠近或远离封切座，所述封切座和热封刀架可上下移动，以调整封切线与第一传送带之间的高度距离。
作为本发明的进一步改进，所述封切座的下方连接有支撑板，所述热封刀架铰接在支撑板上，所述支撑板上设置有传动螺纹孔，所述机架上可旋转的设置有沿竖直方向延伸的丝杆，所述丝杆与传动螺纹孔螺纹连接；或者是所述封切座的下方连接有支撑板，所述热封刀架铰接在支撑板上，所述支撑板上设置有沿竖直方向延伸的升降齿条，所述机架上可旋转地安装有升降齿轮，所述升降齿轮与升降齿条啮合。
作为本发明的进一步改进，所述封切座包括相互垂直设置的第一座和第二座，所述支撑板有两块，其中一块连接在第一座的下方，另一块连接在第二座下方背向第一座的一侧，所述热封刀架铰接在背向第一座的支撑板上，两块所述支撑板上均开设有传动螺纹孔，所述丝杆有两根，分别与两个传动螺纹孔螺纹连接。
作为本发明的进一步改进，所述机架上设置有安装架，所述安装架设置在支撑板的下方，所述安装架上安装有用于驱动丝杆转动的驱动机构，所述驱动机构包括手柄、主动轴、从动轴、链条，两根所述丝杆上均同轴设置有传动齿轮，所述链条与两个传动齿轮啮合，所述从动轴与所述两根丝杆中的一根同轴固定，其上同轴设置有从动锥齿轮，所述主动轴水平设置在安装架上，其上同 轴设置有主动锥齿轮，所述从动锥齿轮与主动锥齿轮啮合，所述手柄可拆卸的安装在主动轴背向主动锥齿轮的一端。
作为本发明的进一步改进，所述支撑板上设置有导向块，所述导向块上开设有导向孔，所述机架上设置有沿竖直方向延伸的导杆，所述导杆插入到导向孔中，所述导向块可沿导杆滑移。
作为本发明的进一步改进，所述机架上设置有滑移架，所述第一传送带、封切座、热封刀架设置在滑移架上，所述滑移架可在机架上相对热收缩装置左右滑移，调整第一传送带与第二传送带的相对位置。
作为本发明的进一步改进，所述滑移架上设置有滑移块，所述滑移块上开设有滑移孔，所述机架上设置有滑移杆，所述滑移杆水平设置且两端沿前后方向延伸，所述滑移杆插入到滑移孔内，所述滑移块可沿滑移杆滑移。
作为本发明的进一步改进，所述滑移块有四个，两个一组分别安装在滑移架的相对两侧，所述滑移杆有两根，且两根滑移杆相互平行设置，每根所述滑移杆穿过一组滑移块。
作为本发明的进一步改进，还包括用于固定滑移架的固定机构，所述固定机构包括长齿条、短齿条、固定架、摆动块、拉杆，所述长齿条安装在机架上，所述固定架安装在滑移架上，位于长齿条的上方，所述固定架上开设有沿竖直方向延伸的滑孔，所述短齿条的顶端设置有滑杆，所述滑杆插入滑孔内，所述滑杆可在滑孔内上下滑移，所述滑杆上横向设置有驱动杆，所述固定架上沿竖直方向设置有腰形孔，所述腰形孔与滑孔相互连通，所述驱动杆从腰形孔伸出，所述摆动块铰接在固定架上，所述摆动块的一端设置有用于向上拨动驱动杆的拨动部，另一端设置有连接部，所述拉杆的一端与连接部铰接，另一端上设置有供人抓握的抓握部，所述短齿条从上方与长齿条啮合，将短齿条与长齿条相 锁定，当拉杆向外移动，拉动摆动块转动，使拨动部向上转动，向上拨动驱动杆，提升短齿条，从而解除短齿条与长齿条的锁定。
作为本发明的进一步改进，所述滑移架靠近抓握部的一侧设置有盖板，所述盖板上设置有通孔，所述拉杆设置在通孔内，所述抓握部从通孔伸出，所述拉杆可在通孔内滑移，所述拉杆上固定有限位片，所述拉杆上套设有弹簧，所述弹簧和限位片设置在盖板内侧，所述弹簧的一端顶住盖板，另一端顶住限位片，向内推动拉杆。
本发明的有益效果，通过改变封切座的上下位置，以改变封切刀与封切座闭合的位置相对传送带的高低，在包装不同高度的箱子时，就能将闭合位置调节到箱子的中部，位于箱子中部的闭合线，在热收缩后受力均匀，结构牢固。本发明通过改变封切座的位置改变薄膜在箱子上的闭合位置，相对于现有的通过调节其中一个传送带调节封切线的位置，避免在传送带间形成高低差，避免箱子在输送过程中因高低差发生倾斜，避免由箱子倾斜引起的薄膜滚动，避免由薄膜滚动引起的闭合线倾斜，进而避免在热收缩后由闭合线倾斜引起的受力不均衡，相对现有技术，提高了薄膜热收缩后的强度，并且更美观。
附图说明
图1为本发明的结构图；
图2为本发明的内部结构图；
图3为封切座及其驱动机构的整体结构图；
图4为封切座及其驱动机构的局部结构图；
图5为热封刀架及其驱动机构的结构图；
图6为固定机构的结构图。
1-机架、2-热收缩装置、3-封切座、4-热封刀架、5-第一传送带、6-第二 传送带、7-热封切刀、8-支撑架、9-丝杆、10-安装架、11-手柄、12-主动轴、13-从动轴、14-链条、15-从动锥齿轮、16-主动锥齿轮、17-导向块、18-导杆、19-滑移架、20-滑移块、21-滑移杆、22-长齿条、23-短齿条、24-固定架、25-摆动块、26-拉杆、27-滑杆、28-驱动杆、29-腰形孔、30-拨动部、31-连接部、32-抓握部、33-盖板、34-弹簧、35-限位片、36-传动齿轮、37-气缸
具体实施方式
下面将结合附图所给出的实施例对本发明做进一步的详述。
参照图1至图6所示，本实施例的一种半自动热收缩包装机，其特征在于：包括机架1，所述机架1上设置有热收缩装置2、封切座3、热封刀架4、第一传送带5和第二传送带6，所述封切座3设置在第一传送带5的上方，所述第一传送带5与第二传送带6沿前后方向依次设置，所述第一传送带5与第二传送带6高度相适配(此处所说的适配是指第一传送带5的传送面的高度与第二传送带6的传送面的高度具有使薄膜在传输过程中不发生偏移的较小的高度差，或者是第一传送带5与第二传送带3的传送面在同一平面上)，所述第二传送带6设置在热收缩装置2内，所述封切座3环绕第一传送带5的相邻两边设置，所述热封刀架4的一侧铰接在机架1上，其上设置有热封切刀7，所述热封刀架4以铰接处为轴进行旋转，使热封切刀7靠近或远离封切座3，所述封切座3和热封刀架4可上下移动，以调整封切线与第一传送带5之间的高度距离。操作人员启动电源开关，预热机器，使热封切刀7发热到一定温度，然后将待包装物放入折叠的薄膜中，接着将内置有待包装物的薄膜放置在第一传送带5上，然后将薄膜拉伸开来，放置在封切座3上，通过触发器启动封切装置，热封刀架4被一气缸37推动旋转，使热封切刀7朝封切座3转动，热封切刀7与封切座3相抵触，使其间的薄膜热变形，将待包装物封闭在薄膜内。然后气缸37回位，带动热封刀架4回位，然后第一传送带5和第二传送带6启动，第一传送带5 将薄膜和待包装物传送到第二传送带6，第二传送带6将薄膜和待包装物送到热收缩装置2内，薄膜在热收缩装置2内受热变形，收缩到待包装物表面，第二传送带6将热收缩完成的待包装物送出热收缩装置2。在包装不同高度的待包装物时，通过封切座3和热封刀架4的上下移动，使封切线位于待包装物的中部。相对于调整第一传送带5的高度的方式，在运输过程中薄膜不会发生偏移，避免封切线因薄膜偏移发生偏移，保证封切线位于待包装物中部，提高包装质量。
作为改进的一种具体实施方式，所述封切座3的下方连接有支撑板8，所述热封刀架4铰接在支撑板8上，所述支撑板8上设置有传动螺纹孔，所述机架1上可旋转的设置有沿竖直方向延伸的丝杆9，所述丝杆9与传动螺纹孔螺纹连接；或者是所述封切座3的下方连接有支撑板8，所述热封刀架4铰接在支撑板8上，所述支撑板8上设置有沿竖直方向延伸的升降齿条，所述机架1上可旋转地安装有升降齿轮，所述升降齿轮与升降齿条啮合。在需要调整封切座3的高度时，转动丝杆9，带动封切座3和热封刀架4上下移动，结构简单，操作方便，运行稳定；或者是转动升降齿轮，带动升降齿条上下移动，从而带动封切座3和热封刀架4上下移动。
作为改进的一种具体实施方式，所述封切座3包括相互垂直设置的第一座和第二座，所述支撑板8有两块，其中一块连接在第一座的下方，另一块连接在第二座下方背向第一座的一侧，所述热封刀架4铰接在背向第一座的支撑板8上，两块所述支撑板8上均开设有传动螺纹孔，所述丝杆9有两根，分别与两个传动螺纹孔螺纹连接。两块支撑板8从两侧支撑封切座3，使封切座3在上下移动的过程中受力均匀，升降更平稳。
作为改进的一种具体实施方式，所述机架1上设置有安装架10，所述安装架10设置在支撑板8的下方，所述安装架10上安装有用于驱动丝杆9转动的 驱动机构，所述驱动机构包括手柄11、主动轴12、从动轴13、链条14，两根所述丝杆9上均同轴设置有传动齿轮36，所述链条14与两个传动齿轮36啮合，所述从动轴13与所述两根丝杆9中的一根同轴固定，其上同轴设置有从动锥齿轮15，所述主动轴12水平设置在安装架10上，其上同轴设置有主动锥齿轮16，所述从动锥齿轮15与主动锥齿轮16啮合，所述手柄11可拆卸的安装在主动轴12背向主动锥齿轮16的一端。操作人员转动手柄11，带动主动轴12转动，通过主动锥齿轮16和从动锥齿轮15传动，带动从动轴13转动，进而带动两根丝杆9同步转动，带动封切座3平稳的上下移动。
作为改进的一种具体实施方式，所述支撑板8上设置有导向块17，所述导向块17上开设有导向孔，所述机架1上设置有沿竖直方向延伸的导杆18，所述导杆18插入到导向孔中，所述导向块17可沿导杆18滑移。支撑架8上下移动时，导杆18引导支撑架8上下滑移，防止支撑架8在上下滑移的过程中发生偏移，进而防止封切座3偏移，使封切座3更平稳的移动。
作为改进的一种具体实施方式，所述机架1上设置有滑移架19，所述第一传送带5、封切座3、热封刀架4设置在滑移架19上，所述滑移架19可在机架1上相对热收缩装置2左右滑移，调整第一传送带5与第二传送带6的相对位置。为使薄膜收缩在待包装物上，且在收缩时不会结块，封切时，待包装物靠近热封切刀7的两边放置，以使包裹待包装物的封切膜大小合适，不会在热收缩时结块。而在热收缩的过程中，需要将待包装物移动到热收缩装置2的中心位置，已使薄膜能均匀的收缩在待包装物上，在待包装物的尺寸改变时，就不能使待包装物位于热收缩装置2的中间位置。现有的半自动热收缩包装机通过一个引导板，将待包装物引导到热收缩装置2的中间位置。但是薄膜在未收缩时处于蓬松状态，在沿引导板运动的过程中，薄膜会发生偏移，致使薄膜的封切线发 生偏移，降低包装的质量和美观度。本发明通过滑移架19的设置，带动第一传送带5、封切座3和热封切刀7整体左右滑移，使不同尺寸的待包装物在封切时处于热收缩装置2的中心位置的前方，封切完成后的包装物通过第一传送带5和第二传送带6输送到热收缩装置2内进行热收缩，输送过程中薄膜不发送偏移，使封切线保持在待包装物的中心位置，提高包装质量以及包装的美观度。
作为改进的一种具体实施方式，所述滑移架19上设置有滑移块20，所述滑移块20上开设有滑移孔，所述机架1上设置有滑移杆21，所述滑移杆21水平设置且两端沿前后方向延伸，所述滑移杆21插入到滑移孔内，所述滑移块20可沿滑移杆21滑移。通过滑移块20在滑移杆21上滑移，实现滑移架19的左右滑移，结构简单，运行可靠。
作为改进的一种具体实施方式，所述滑移块20有四个，两个一组分别安装在滑移架19的相对两侧，所述滑移杆21有两根，且两根滑移杆21相互平行设置，每根所述滑移杆21穿过一组滑移块20。这种结构从多个点支撑滑移架19，使滑移架19在滑移过程中不会因受力不匀发生偏移，使滑移架19平稳滑移。
作为改进的一种具体实施方式，还包括用于固定滑移架19的固定机构，所述固定机构包括长齿条22、短齿条23、固定架24、摆动块25、拉杆26，所述长齿条22安装在机架1上，所述固定架24安装在滑移架19上，位于长齿条22的上方，所述固定架24上开设有沿竖直方向延伸的滑孔，所述短齿条23的顶端设置有滑杆27，所述滑杆27插入滑孔内，所述滑杆27可在滑孔内上下滑移，所述滑杆27上横向设置有驱动杆28，所述固定架24上沿竖直方向设置有腰形孔29，所述腰形孔29与滑孔相互连通，所述驱动杆28从腰形孔29伸出，所述摆动块25铰接在固定架24上，所述摆动块25的一端设置有用于向上拨动驱动杆28的拨动部30，另一端设置有连接部31，所述拉杆26的一端与连接部31 铰接，另一端上设置有供人抓握的抓握部32，所述短齿条23从上方与长齿条22啮合，将短齿条23与长齿条22相锁定，当拉杆26向外移动，拉动摆动块25转动，使拨动部30向上转动，向上拨动驱动杆28，提升短齿条23，从而解除短齿条23与长齿条22的锁定。在一般状态下，短齿条23与长齿条22相互啮合防止滑移架19意外滑移；在需要移动滑移架19时，操作人员向外侧拉动抓握部32，拉动拉杆26向外移动，转动摆动块25，使拨动部30向上转动，拨动部30与驱动杆28接触，推动滑杆27向上移动，使短齿条23与长齿条22分离，此时操作人员推动滑移架19，使滑移架19滑移，调整第一传送带5的位置，调整完后，操作人员向内推动拉杆26，使拨动30部向下转动，与驱动杆28分离，由于重力作用，短齿条23向下移动，与长齿条22啮合，固定滑移架19。
作为改进的一种具体实施方式，所述滑移架19靠近抓握部32的一侧设置有盖板33，所述盖板33上设置有通孔，所述拉杆26设置在通孔内，所述抓握部32从通孔伸出，所述拉杆26可在通孔内滑移，所述拉杆26上固定有限位片35，所述拉杆26上套设有弹簧34，所述弹簧34和限位片35设置在盖板33内侧，所述弹簧34的一端顶住盖板33，另一端顶住限位片35，向内推动拉杆26。使拉杆26回到初始状态，带动摆动块25转动，使拨动部30向下转动，与驱动杆28分离，由于重力作用，短齿条23向下移动，与长齿条22啮合，固定滑移架19。在滑移架19调整完成后，弹簧34推动短齿条23自动回位，简化了滑移架19调整的步骤，且可避免操作人员在完成对滑移架19的调整后，忘记锁定滑移架19。
以上仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进 和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种半自动热收缩包装机，其特征在于：包括机架(1)，所述机架(1)上设置有热收缩装置(2)、封切座(3)、热封刀架(4)、第一传送带(5)和第二传送带(6)，所述封切座(3)设置在第一传送带(5)的上方，所述第一传送带(5)与第二传送带(6)沿前后方向依次设置，所述第一传送带(5)与第二传送带(6)高度相适配，所述第二传送带(6)设置在热收缩装置(2)内，所述封切座(3)环绕第一传送带(5)的相邻两边设置，所述热封刀架(4)的一侧铰接在机架(1)上，其上设置有热封切刀(7)，所述热封刀架(4)以铰接处为轴进行旋转，使热封切刀(7)靠近或远离封切座(3)，所述封切座(3)和热封刀架(4)可上下移动，以调整封切线与第一传送带(5)之间的高度距离。
  2. 根据权利要求1所述的一种半自动热收缩包装机，其特征在于：所述封切座(3)的下方连接有支撑板(8)，所述热封刀架(4)铰接在支撑板(8)上，所述支撑板(8)上设置有传动螺纹孔，所述机架(1)上可旋转的设置有沿竖直方向延伸的丝杆(9)，所述丝杆(9)与传动螺纹孔螺纹连接；或者是所述封切座(3)的下方连接有支撑板(8)，所述热封刀架(4)铰接在支撑板(8)上，所述支撑板(8)上设置有沿竖直方向延伸的升降齿条，所述机架(1)上可旋转地安装有升降齿轮，所述升降齿轮与升降齿条啮合。
  3. 根据权利要求2所述的一种半自动热收缩包装机，其特征在于：所述封切座(3)包括相互垂直设置的第一座和第二座，所述支撑板(8)有两块，其中一块连接在第一座的下方，另一块连接在第二座下方背向第一座的一侧，所述热封刀架(4)铰接在背向第一座的支撑板(8)上，两块所述支撑板(8)上均开设有传动螺纹孔，所述丝杆(9)有两根，分别与两个传 动螺纹孔螺纹连接。
  4. 根据权利要求3所述的一种半自动热收缩包装机，其特征在于：所述机架(1)上设置有安装架(10)，所述安装架(10)设置在支撑板(8)的下方，所述安装架(10)上安装有用于驱动丝杆(9)转动的驱动机构，所述驱动机构包括手柄(11)、主动轴(12)、从动轴(13)、链条(14)，两根所述丝杆(9)上均同轴设置有传动齿轮(36)，所述链条(14)与两个传动齿轮(36)啮合，所述从动轴(13)与所述两根丝杆(9)中的一根同轴固定，其上同轴设置有从动锥齿轮(15)，所述主动轴(12)水平设置在安装架(10)上，其上同轴设置有主动锥齿轮(16)，所述从动锥齿轮(15)与主动锥齿轮(16)啮合，所述手柄(11)可拆卸的安装在主动轴(12)背向主动锥齿轮(16)的一端。
  5. 根据权利要求2或3或4所述的一种半自动热收缩包装机，其特征在于：所述支撑板(8)上设置有导向块(17)，所述导向块(17)上开设有导向孔，所述机架(1)上设置有沿竖直方向延伸的导杆(18)，所述导杆(18)插入到导向孔中，所述导向块(17)可沿导杆(18)滑移。
  6. 根据权利要求1或2或3或4所述的一种半自动热收缩包装机，其特征在于：所述机架(1)上设置有滑移架(19)，所述第一传送带(5)、封切座(3)、热封刀架(4)设置在滑移架(19)上，所述滑移架(19)可在机架(1)上相对热收缩装置(2)左右滑移，调整第一传送带(5)与第二传送带(6)的相对位置。
  7. 根据权利要求6所述的一种半自动热收缩包装机，其特征在于：所述滑移架(19)上设置有滑移块(20)，所述滑移块(20)上开设有滑移孔，所述机架(1)上设置有滑移杆(21)，所述滑移杆(21)水平设置且两端沿 前后方向延伸，所述滑移杆(21)插入到滑移孔内，所述滑移块(20)可沿滑移杆(21)滑移。
  8. 根据权利要求7所述的一种半自动热收缩包装机，其特征在于：所述滑移块(20)有四个，两个一组分别安装在滑移架(19)的相对两侧，所述滑移杆(21)有两根，且两根滑移杆(21)相互平行设置，每根所述滑移杆(21)穿过一组滑移块(20)。
  9. 根据权利要求8所述的一种半自动热收缩包装机，其特征在于：还包括用于固定滑移架(19)的固定机构，所述固定机构包括长齿条(22)、短齿条(23)、固定架(24)、摆动块(25)、拉杆(26)，所述长齿条(22)安装在机架(1)上，所述固定架(24)安装在滑移架(19)上，位于长齿条(22)的上方，所述固定架(24)上开设有沿竖直方向延伸的滑孔，所述短齿条(23)的顶端设置有滑杆(27)，所述滑杆(27)插入滑孔内，所述滑杆(27)可在滑孔内上下滑移，所述滑杆(27)上横向设置有驱动杆(28)，所述固定架(24)上沿竖直方向设置有腰形孔(29)，所述腰形孔(29)与滑孔相互连通，所述驱动杆(28)从腰形孔(29)伸出，所述摆动块(25)铰接在固定架(24)上，所述摆动块(25)的一端设置有用于向上拨动驱动杆(28)的拨动部(30)，另一端设置有连接部(31)，所述拉杆(26)的一端与连接部(31)铰接，另一端上设置有供人抓握的抓握部(32)，所述短齿条(23)从上方与长齿条(22)啮合，将短齿条(23)与长齿条(22)相锁定，当拉杆(26)向外移动，拉动摆动块(25)转动，使拨动部(30)向上转动，向上拨动驱动杆(28)，提升短齿条(23)，从而解除短齿条(23)与长齿条(22)的锁定。
  10. 根据权利要求9所述的一种半自动热收缩包装机，其特征在于：所述滑移 架(19)靠近抓握部(32)的一侧设置有盖板(33)，所述盖板(33)上设置有通孔，所述拉杆(26)设置在通孔内，所述抓握部(32)从通孔伸出，所述拉杆(26)可在通孔内滑移，所述拉杆(26)上固定有限位片(35)，所述拉杆(26)上套设有弹簧(34)，所述弹簧(34)和限位片(35)设置在盖板(33)内侧，所述弹簧(34)的一端顶住盖板(33)，另一端顶住限位片(35)，向内推动拉杆(26)。
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