Sealing device of mattress packaging machine

Abstract

The embodiment of the present invention discloses a sealing device of a mattress packaging machine, including a lower sealing device and an upper sealing device; the lower sealing device includes a lower crossbeam that can move up and down, a heating plate is provided on the upper surface of the lower crossbeam, both ends of the heating plate are arranged in a junction box, and the junction box is provided with an air cooling mechanism; the upper sealing device includes an upper crossbeam that can move up and down and is located above the lower crossbeam, a pressing pad that is directly opposite to the heating plate is provided on the lower surface of the upper crossbeam, and a cutter is also provided in the upper crossbeam; the cutter is arranged on a movable trolley. By adopting the present invention, the end of the heating plate can be continuously cooled by air, thereby extending the service life of the heating plate. The cutter is driven to move by the movement of the movable trolley to cut off the packaging film. The movement of the movable trolley is restricted by a specially designed slide slot, and the operation is stable, and the force distribution is reasonable, so as to ensure that the cutter can stably and smoothly cut the packaging film, and the work efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of mattress production, and in particular to a sealing device of a mattress packaging machine. Background Art

[0002] After the mattress is produced, it needs to be packaged with packaging film to prevent the mattress from being contaminated during transportation or storage. The mattress filming process is mainly completed automatically by the mattress packaging machine, and the packaging machine uses a sealing device to seal the packaging film after the filming. The existing sealing device has the following defects:

[0003] 1. The cutter is driven horizontally by the cylinder, and the cutter runs unsteadily, which may easily lead to the cutter breaking or uneven cutting.

[0004] 2. The junction box used to connect the heater has poor heat dissipation, which can easily cause high temperature at the end of the heater due to heat accumulation, causing the heater or terminal to oxidize or melt, affecting the service life of the heater. Summary of the invention

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a sealing device for a mattress packaging machine, which can seal the mattress packaging film and cut the sealed packaging film with a cutter. The cutter can stably and smoothly cut the packaging film, with high working efficiency and stable operation.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a sealing device for a mattress packaging machine, including a lower sealing device and an upper sealing device;

[0007] The lower sealing device comprises a lower crossbeam that can move up and down, a heating plate is provided on the upper surface of the lower crossbeam, both ends of the heating plate are arranged in a junction box, and the junction box is provided with an air cooling mechanism for reducing the temperature of the heating plate located therein;

[0008] The upper sealing device comprises an upper beam which can move up and down and is located above the lower beam, a pressing pad which is opposite to the heating plate is provided on the lower surface of the upper beam, and a cutting knife is also provided inside the upper beam;

[0009] The cutter is arranged on a movable trolley, and the upper crossbeam is also provided with a trolley driving mechanism, and the trolley driving mechanism can drive the movable trolley to slide in the sliding groove of the upper crossbeam.

[0010] As an improvement of the above-mentioned solution, a terminal head accommodating chamber and a spring accommodating chamber are provided in the junction box, a terminal head is provided in the terminal head accommodating chamber, a tensioning spring and a tensioning rod are provided in the spring accommodating chamber, and the tensioning rod is connected to the terminal head and can keep the heating plate fixed on the terminal head tensioned under the tensioning action of the tensioning spring.

[0011] As an improvement of the above scheme, the air cooling mechanism includes an air inlet, an air outlet and an air supply mechanism; the air inlet is arranged on one side of the wiring box, corresponding to the wiring head accommodating cavity, the air outlet is arranged behind the spring accommodating cavity, and the air supply mechanism is used to blow cooling air into the air inlet.

[0012] As an improvement of the above solution, the lower cross beam is further provided with a metal pad, and the working area of ​​the heating plate is supported on the metal pad.

[0013] As an improvement of the above solution, the movable trolley is provided with two sets of pulleys, and the pulleys can slide in the slide grooves.

[0014] As an improvement of the above-mentioned scheme, the trolley driving mechanism includes a driving motor, a reduction box and a driving belt. The driving motor is connected to the reduction box. The driving belt is arranged in the upper cross beam and one end of the driving belt is connected to the output wheel of the reduction box. The driving belt is connected to the movable trolley to drive the movable trolley to move along the upper cross beam.

[0015] As an improvement of the above-mentioned scheme, the upper crossbeam includes a perforated alloy plate located on both sides of the upper crossbeam, an upper accommodating cavity located on the upper side, a trolley accommodating cavity located in the center, and a cutter fixing portion accommodating cavity located on the lower side; the trolley accommodating cavity is provided with a supporting surface for the pulley to slide, and the supporting surface is inclined.

[0016] As an improvement of the above solution, the support surface located on the lower side is provided with a reserved gap, and the connection portion between the driving belt and the movable trolley is located in the reserved gap.

[0017] As an improvement of the above solution, the upper crossbeam and the lower crossbeam are both arranged on the guide column, and the upper crossbeam and the lower crossbeam are also connected to a lifting drive cylinder.

[0018] Implementing the embodiments of the present invention has the following beneficial effects:

[0019] The junction box is provided with an air cooling mechanism, which can use air to continuously cool the end of the heating plate, thereby extending the service life of the heating plate and improving the sealing reliability. The cutter is arranged on a movable trolley, and the movement of the movable trolley drives the cutter to move and cut the packaging film. The movement of the movable trolley is restricted by a specially designed slide slot, and the operation is stable and the force distribution is reasonable, so as to ensure that the cutter can stably and smoothly cut the packaging film, and the working efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of a sealing device of a mattress packaging machine of the present invention;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of a sealing device of a mattress packaging machine of the present invention;

[0022] Figure 3 yes Figure 1 AA surface section view;

[0023] Figure 4 yes Figure 3 A magnified view of part A;

[0024] Figure 5 It is a schematic diagram of the assembly state of the movable vehicle of the present invention;

[0025] Figure 6 It is a schematic diagram of the internal structure of the junction box of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0027] like Figure 1 and Figure 2 As shown, a specific embodiment of the present invention provides a sealing device for a mattress packaging machine, comprising a lower sealing device 1 and an upper sealing device 2;

[0028] The lower sealing device 1 comprises a lower crossbeam 3 which can move up and down, a heating plate 4 is provided on the upper surface of the lower crossbeam 3, both ends of the heating plate 4 are arranged in a junction box 5, and the junction box 5 is provided with an air cooling mechanism for reducing the temperature of the heating plate 4 located therein;

[0029] The upper sealing device 2 includes an upper beam 6 that can move up and down and is located above the lower beam 3. The lower surface of the upper beam 6 is provided with a pressing pad 61 that is opposite to the heating plate 4. A cutter 7 is also provided inside the upper beam 6.

[0030] The cutter 7 is arranged on a movable trolley 8, and the upper beam 6 is also provided with a trolley driving mechanism, which can drive the movable trolley 8 to slide in the slide groove 62 of the upper beam 6. The upper beam 6 and the lower beam 3 are both arranged on a guide column 91, and the upper beam 6 and the lower beam 3 are also connected with a lifting drive cylinder 92, and the upper beam 6 and the lower beam 3 are driven to rise and fall by the lifting drive cylinder 92. After the mattress is wrapped with the packaging film, the opening is placed between the upper crossbeam 6 and the lower crossbeam 3. At this time, the upper crossbeam 6 and the lower crossbeam 3 move toward each other to press the opening of the packaging film. Since two side-by-side heating plates 4 are provided on the surface of the upper crossbeam 6, the packaging film can be formed into two seals by hot melting during the process of the upper crossbeam 6 and the lower crossbeam 3 pressing the packaging film. Then the cutter 7 moves from one end of the upper crossbeam 6 to the other end to cut the two seals. The seal at the front seals the mattress, and the seal at the back connects the upper and lower rolls of packaging film to prepare for wrapping the next mattress.

[0031] With the above structure, the junction box 5 is provided with an air cooling mechanism, which can continuously cool the end of the heating plate 4 with air, thereby extending the service life of the heating plate 4 and improving the sealing reliability. The cutter 7 is arranged on the movable trolley 8, and the movement of the movable trolley 8 drives the cutter 7 to move and cut the packaging film. The movement of the movable trolley 8 is restricted by the specially designed slide 62, and the operation is stable, and the force distribution is reasonable, so as to ensure that the cutter 7 can stably and smoothly cut the packaging film, and the working efficiency is high.

[0032] Specifically, combined Figure 6The junction box 5 is provided with a terminal head accommodating chamber 51 and a spring accommodating chamber 52. The terminal head accommodating chamber 51 is provided with a terminal head 53. The spring accommodating chamber 52 is provided with a tensioning spring 54 and a tensioning rod 55. The tensioning rod 55 is connected to the terminal head 53, and can keep the heating plate 4 fixed on the terminal head 53 in tension under the tensioning action of the tensioning spring 54. The lower cross beam 3 is also provided with a metal pad 31, and the working area of ​​the heating plate 4 is supported on the metal pad 31. When the heating plate 4 is heated, the heat generated in the working part will be evenly transferred to the metal pad 31, so that the heating plate 4 can quickly heat up and stay at a predetermined temperature. In order to prevent high temperature from affecting other electronic components, the junction box 5 is made of high temperature resistant insulation material. Since the end of the heating plate 4 is no longer in contact with the metal pad 31, the heat can only be transferred to the junction box 5 through air. The air cooling mechanism blows out the air in the junction box 5 through a specific path to prevent heat accumulation inside the junction box 5 and improve the stability during long-term operation. The air cooling mechanism includes an air inlet 56, an air outlet 57 and an air supply mechanism (not shown in the figure); the air inlet 56 is arranged on one side of the junction box 5, corresponding to the accommodating cavity 51 of the terminal head 53, the air outlet 57 is arranged behind the spring accommodating cavity 52, and the air supply mechanism is used to blow cooling air into the air inlet 56. The air supply mechanism can be an air compressor, which is connected to the air inlet 56 through an air duct to blow compressed air into the junction box 5. Through the above arrangement, the blown cold air can directly cool the high-temperature part of the heating plate, and then the hot air is discharged from the side away from the packaging film to prevent the hot air from affecting the operator or the sealing of the packaging film.

[0033] Combination Figure 3 and Figure 5 In order to ensure the stable operation of the cutter 7, the force applied to the movable trolley 8 during the movement process must be precisely designed. The movable trolley 8 is provided with two sets of pulleys 81, and the pulleys 81 can slide in the slide groove 62. The trolley driving mechanism includes a driving motor 82, a reduction box 83 and a driving belt 84. The driving motor 82 is connected to the reduction box 83. The driving belt 84 is arranged in the upper beam 6, and one end of the driving belt 84 is connected to the output wheel of the reduction box 83. The driving belt 84 is connected to the movable trolley 8 to drive the movable trolley 8 to move along the upper beam 6. The driving belt 84 itself has a certain elasticity, and can play a certain buffering role when the cutter 7 is subjected to a sudden impact.

[0034] Combination Figure 4The upper crossbeam 6 includes a perforated alloy plate 63 located on both sides of the upper crossbeam 6, an upper accommodating chamber 64 located on the upper side, a trolley accommodating chamber 65 located in the center, and a cutter fixing chamber 66 located on the lower side; the trolley accommodating chamber 65 is provided with a supporting surface 67 for the pulley 81 to slide, and the supporting surface 67 is inclined. The perforated alloy plate 63 provides sufficient strength for the upper crossbeam 6, including bending strength and torsional strength, to ensure that the movable trolley 8 can move in a straight line. The upper accommodating chamber 64 is used to accommodate the upper half of the driving belt 84. The supporting surface 67 is inclined. On the one hand, it cooperates with the surface of the pulley 81 of the movable trolley 8, which also has an inclined surface, so that the movable trolley 8 can move in the center line between the two supporting surfaces 67; on the other hand, the inclined supporting surface 67 is convenient for automatically discharging debris and dust that may be generated in the working environment, so as to ensure that the movable trolley 8 moves smoothly on the supporting surface 67.

[0035] Preferably, the support surface 67 located at the lower side is provided with a reserved gap 68, and the connection portion between the driving belt 84 and the movable trolley 8 is located in the reserved gap 68. The reserved gap 68 serves as a limit for the movable trolley 8 to prevent the movable trolley 8 from slipping out. In addition, placing the lower half of the driving belt 84 in the reserved gap 68 can prevent the driving belt 84 from shaking left and right due to the overall long stroke, so that the driving force of the driving belt 84 is always maintained in the running direction of the movable trolley 8.

[0036] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A sealing device for a mattress packaging machine, characterized in that: It includes a lower sealing device and an upper sealing device, The lower sealing device comprises a lower crossbeam that can move up and down, a heating plate is provided on the upper surface of the lower crossbeam, both ends of the heating plate are arranged in a junction box, and the junction box is provided with an air cooling mechanism for reducing the temperature of the heating plate located therein; The upper sealing device comprises an upper beam which can move up and down and is located above the lower beam, a pressing pad which is opposite to the heating plate is provided on the lower surface of the upper beam, and a cutting knife is also provided inside the upper beam; The cutter is arranged on a movable trolley, and the upper crossbeam is also provided with a trolley driving mechanism, and the trolley driving mechanism can drive the movable trolley to slide in the slide groove of the upper crossbeam; The movable trolley is provided with two sets of pulleys, and the pulleys can slide in the slide grooves; The trolley driving mechanism includes a driving motor, a reduction box and a driving belt, wherein the driving motor is connected to the reduction box, the driving belt is arranged in the upper crossbeam, one end of which is connected to the output wheel of the reduction box, and the driving belt is connected to the movable trolley to drive the movable trolley to move along the upper crossbeam; The upper crossbeam includes a perforated alloy plate located on both sides of the upper crossbeam, an upper accommodating cavity located on the upper side, a trolley accommodating cavity located in the center, and a cutter fixing portion accommodating cavity located on the lower side; the trolley accommodating cavity is provided with a supporting surface for the pulley to slide, and the supporting surface is arranged obliquely; The support surface at the lower side is provided with a reserved gap, and the connection part between the driving belt and the movable trolley is located in the reserved gap; The junction box is provided with a terminal head accommodating chamber and a spring accommodating chamber, the terminal head is provided in the terminal head accommodating chamber, the spring accommodating chamber is provided with a tensioning spring and a tensioning rod, the tensioning rod is connected to the terminal head, and can keep the heating plate fixed on the terminal head in tension under the tensioning action of the tensioning spring; The air cooling mechanism includes an air inlet, an air outlet and an air supply mechanism; the air inlet is arranged on one side of the junction box, corresponding to the junction head accommodating cavity, the air outlet is arranged behind the spring accommodating cavity, and the air supply mechanism is used to blow cooling air into the air inlet; The lower cross beam is also provided with a metal pad, and the working area of ​​the heating plate is supported on the metal pad.

2. The sealing device of the mattress packaging machine according to claim 1, characterized in that: The upper crossbeam and the lower crossbeam are both arranged on the guide pillars, and the upper crossbeam and the lower crossbeam are also connected with lifting drive cylinders.

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