Automatic sealing device of food packaging machine

Abstract

The utility model relates to the technical field of food processing, and discloses an automatic sealing device of a food packaging machine, which comprises a device main body, the device main body further comprises a heat sealing module, the heat sealing module comprises two groups of height telescopic rods, and the height telescopic rods are arranged at the top end of a supporting bottom plate; the number of the rotating shaft supports is two, the rotating shaft supports are connected with the height telescopic rod, and heating assemblies are embedded in the rotating shaft supports; and the number of the sealing rollers is two, and the sealing rollers are movably installed on the outer surface of the rotating shaft support in a sleeving mode. The heat sealing module and the heating assembly are arranged in the rotating shaft support, heat is evenly transferred to the sealing roller, the temperature of a sealing area is stable, the sealing quality is improved, sealing fusion penetration or infirmness is avoided, meanwhile, due to the fact that the sealing roller rotates along with friction of a packaging bag, pause is not needed, continuous sealing is achieved, and the sealing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to food processing technical field more particularly to automatic sealing device of food packaging machine. BACKGROUND

[0002] The existing food packaging sealing equipment mostly adopts traditional flat plate heating sealing or intermittent heat sealing technology, which has certain limitations in actual production process. The traditional sealing machine usually needs the packaging bag to stay in the heating sealing area for a period of time to ensure the sealing quality, which leads to low sealing efficiency and affects the overall speed of the production line. For high-speed production demand, intermittent sealing is easy to become a bottleneck, affecting the production efficiency. At the same time, in the common upper and lower heating plate clamping type sealing equipment, the sealing area is easy to cause uneven heating, leading to unstable sealing strength, and the overheat melting or sealing of some areas may occur, affecting the sealing of the packaging, and even may cause product leakage, affecting the shelf life of food. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides an automatic sealing device of food packaging machine to solve the problems existing in the above background technology.

[0004] The utility model provides the following technical scheme: automatic sealing device of food packaging machine, including device main part, device main part includes control panel, device main part still includes support base plate, the top fixed mounting of support base plate has drive frame, be provided with two drive wheels on drive frame, be provided with a plurality of support wheels on drive frame, the outer surface of drive wheel and support wheel installs a conveyer belt simultaneously, device main part still includes heat sealing module, heat sealing module includes:

[0005] Height telescopic link, the number of height telescopic link is two groups, height telescopic link all sets up in the top of support base plate,

[0006] Pivot bracket, the number of pivot bracket is two groups, pivot bracket all is linked with height telescopic link, the inside of pivot bracket all inlays installation has heating assembly,

[0007] Sealing cylinder, the number of sealing cylinder is two groups, sealing cylinder all movably sets up installation on the outer surface of pivot bracket.

[0008] Through setting up heat sealing module, heating assembly is placed in pivot bracket, and uniform heat is transferred to sealing cylinder, so that the temperature of the sealing area is stable, the sealing quality is improved, and the sealing melting or unfirmness is avoided. At the same time, since the sealing cylinder rotates with the friction of the packaging bag, it is not necessary to stop, and continuous sealing can be realized, and the sealing efficiency is improved.

[0009] Further, the top end of the height telescopic rod is fixedly installed with horizontal telescopic rods, the number of the horizontal telescopic rods is two groups, and the side, close to each other, of the horizontal telescopic rods is connected with the rotating shaft support. The interval between the sealing drums can be changed through the adjustment of the horizontal telescopic rods, so that the device is suitable for packaging bags of different materials and thicknesses, the compatibility of the device is improved, the pressure between the sealing drums can be adjusted through the horizontal telescopic rods, the sealing line is clear, and the situation that the sealing is not firm or the pressure is too large is avoided.

[0010] Further, the rotating shaft support is fixedly installed with protective covers, and the sealing drums are movably arranged in the protective covers. The protective covers protect the sealing drums, dust or impurities are prevented from entering the sealing area, and the sanitary conditions of sealing are improved.

[0011] Further, the top end of the support bottom plate is fixedly installed with two center guide plates, the center guide plates are arranged above the conveying belt, and the top view projection shapes of the center guide plates are trapezoidal. The center guide plates are arranged, the shape design of the center guide plates can prevent the packaging bag from deviating in the transmission process, the sealing line is ensured to be located at the correct position at all times, the sealing consistency is improved, the trapezoidal design allows packaging bags of different specifications to be automatically adjusted to the center, manual intervention is reduced, and the automation degree is improved.

[0012] Further, the top end of the horizontal telescopic rod is fixedly installed with a scale, the top end of the rotating shaft support is fixedly installed with a pointer, the pointer is provided with a through groove, and the scale is arranged in the through grooves of the two pointers. The scale and the pointer are matched, an operator can intuitively read and adjust the interval between the sealing drums, blind adjustment is avoided, the precision and convenience of device adjustment are improved, different packaging materials can require different sealing pressures and intervals, the scale and the pointer provide a standardized adjustment mode, and the sealing quality of different batches of products is ensured to be consistent.

[0013] Further, the bottom end of the height telescopic rod is fixedly installed with an electric sliding block, the top end of the support bottom plate is fixedly installed with two sliding rails, and the electric sliding block at the bottom end of the height telescopic rod is slidably installed on the sliding rails. Through the cooperation of the electric sliding block and the sliding rail, the relative position of the sealing mechanism above the conveying belt can be automatically adjusted, so that the device is adapted to different packaging bags, and the applicability is improved.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. The utility model discloses a heat sealing module is set up, and the heating assembly is placed in the rotating shaft support, and uniform heat is transferred to the sealing drum, so that the sealing area temperature is stable, the sealing quality is improved, the sealing is avoided to melt and wear, or not firm, and simultaneously, since the sealing drum rotates with the friction of the packaging bag, it is not necessary to stop, and continuous sealing can be realized, and the sealing efficiency is improved.

[0016] 2. The utility model discloses through being equipped with horizontal telescopic link, can change the interval between sealing drum, is applicable to the packaging bag of different material, thickness, improves the equipment compatibility, and the pressure between sealing drum can be adjusted through horizontal telescopic link, ensures that sealing line is clear, avoids the situation of not firm or excessive pressure of sealing. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure front view stereogram schematic drawing of the utility model.

[0018] Figure 2 It is the partial structure stereogram schematic drawing of the utility model.

[0019] Figure 3 It is the drive module stereogram schematic drawing of the utility model.

[0020] Figure 4 It is the structure plan schematic drawing of the utility model.

[0021] The figure mark is: 100, support base plate, 110, drive frame, 111, drive wheel, 112, support wheel, 113, height telescopic link, 114, pivot support, 115, sealing drum, 116, conveyer belt, 117, horizontal telescopic link, 118, protective cover, 119, centering guide plate, 120, scale, 121, pointer, 122, slide rail. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model will be described below in clear and complete manner in combination with the drawings in the utility model.

[0023] Example one:

[0024] Reference Figure 1 And Figure 2 The utility model provides a food packaging machine's automatic sealing device, including device main body, and device main body includes control panel, its characterized in being, device main body still includes support base plate 100, and the top of support base plate 100 is fixedly installed with drive frame 110, is provided with two drive wheels 111 on drive frame 110, is provided with a plurality of support wheels 112 on drive frame 110, and the outer surface of drive wheel 111 and support wheel 112 simultaneously installs one conveyer belt 116, and device main body still includes heat sealing module, and heat sealing module includes:

[0025] Height telescopic link 113, the number of height telescopic link 113 is two groups, and height telescopic link 113 all are set up in the top of support base plate 100;

[0026] Rotating shaft supports 114, the number of rotating shaft supports 114 is two groups, rotating shaft supports 114 are all connected with height telescopic rods 113, the inside of rotating shaft supports 114 are all embeddedly installed with heating assemblies;

[0027] Sealing rollers 115, the number of sealing rollers 115 is two groups, sealing rollers 115 are all movably sleevedly installed on the outer surface of rotating shaft supports 114.

[0028] The top end of height telescopic rod 113 is fixedly installed with horizontal telescopic rods 117, the number of horizontal telescopic rods 117 is two groups, the side of horizontal telescopic rods 117 close to each other is connected with rotating shaft supports 114.

[0029] Rotating shaft supports 114 are all fixedly installed with protective covers 118, sealing rollers 115 are all movably arranged in the inside of protective covers 118.

[0030] The top end of support bottom plate 100 is fixedly installed with two center guide plates 119, center guide plates 119 are all arranged above conveying belt 116, the plan view projection shape of center guide plates 119 is all trapezoidal.

[0031] Working principle: Conveying belt 116 is supported and driven by driving wheel 111 and supporting wheel 112, the trapezoidal guide structure of center guide plate 119 ensures that the packaging bag is adjusted to the center of conveying belt 116 before sealing to prevent deviation and improve sealing accuracy; Rotating shaft supports 114 are embedded with electric heating pipes as heating assemblies, the electric heating pipes select nickel-chromium alloy heating wires, which are used for stably providing high temperature, the heating element is connected with the control panel through wires and is controlled by the temperature control system of the control panel, so as to ensure that the surface temperature of sealing roller 115 is constant, the temperature control system is set at 180-250 degrees Celsius, which is suitable for packaging bags of different materials such as PE, PP, aluminum foil composite film, etc., after starting, heat is transferred from rotating shaft support 114 to sealing roller 115, sealing roller 115 is made of aluminum alloy metal with high thermal conductivity, which is fast in heat conduction, corrosion-resistant and light in weight, and is suitable for making sealing roller 115; When heat sealing, the packaging bag enters between the two sealing rollers 115, relies on the propulsion of conveying belt 116, the sealing roller 115 forms friction with the packaging bag, the sealing roller 115 is passively rotated, the sealing roller 115 is heated to melt and fuse the opening part of the packaging bag, the surface pressure of the sealing roller 115 is used to ensure that the plastic is firmly welded, and the sealing is formed; Horizontal telescopic rods 117 connect two rotating shaft supports 114, which can adjust the distance between sealing rollers 115 to adapt to packaging bags of different thicknesses and prevent excessive pressure from causing bag opening to melt or sealing to be not firm.

[0032] Example two:

[0033] Reference Figure 1 The difference between example two and example one is:

[0034] The top end of the horizontal telescopic rod 117 is fixedly installed with a scale 120, and the top end of the rotating shaft support 114 is fixedly installed with a pointer 121, which is provided with a through slot. The scale 120 is arranged in the through slot of the two pointers 121.

[0035] The bottom end of the height telescopic rod 113 is fixedly installed with an electric sliding block, and the top end of the support bottom plate 100 is fixedly installed with two sliding rails 122. The electric sliding block at the bottom end of the height telescopic rod 113 is slidingly installed on the sliding rail 122.

[0036] Working principle: when the horizontal telescopic rod 117 drives the two rotating shaft supports 114 to adjust the interval, the two pointers 121 at the top end of the rotating shaft support 114 will slide along the scale 120. At this time, the operator reads the interval between the two pointers 121, and can know whether the interval between the two sealing rollers 115 is reasonable. When it is necessary to change the relative position of the heat sealing module on the top end of the conveying belt 116, the two electric sliding blocks at the bottom end of the height telescopic rod 113 are started at the same time, so that they drive the two height telescopic rods 113 to slide along the track of the sliding rail 122, so that the heat sealing module can change its relative position according to the demand. The electric sliding blocks at the bottom end of the height telescopic rod 113 all adopt THK-KR30 type ball screw electric sliding blocks, and the sliding rail 122 adopts HIWIN-HGR20 linear rail, which can bear the load of the sealing mechanism and ensure the sliding stability.

Claims

1. Automatic sealing device for food packaging machines, comprising a device body, said device body comprising a control panel, characterized in that, The device body also includes a support base plate (100), the top end of the support base plate (100) is fixedly installed with a drive frame (110), two drive wheels (111) are arranged on the drive frame (110), a plurality of support wheels (112) are arranged on the drive frame (110), the outer surfaces of the drive wheels (111) and the support wheels (112) are simultaneously installed with a conveyor belt (116), the device body also includes a heat sealing module, the heat sealing module includes: A height telescopic rod (113), the number of height telescopic rods (113) is two groups, the height telescopic rods (113) are arranged at the top end of the support base plate (100); A rotating shaft support (114), the number of rotating shaft supports (114) is two groups, the rotating shaft supports (114) are connected with the height telescopic rods (113), and the rotating shaft supports (114) are all embeddedly installed with heating assemblies; A sealing roller (115), the number of sealing rollers (115) is two groups, the sealing rollers (115) are movably sleevedly installed on the outer surfaces of the rotating shaft supports (114).

2. The automatic sealing device of a food packaging machine according to claim 1, characterized in that: The top end of the height telescopic rod (113) is fixedly installed with a horizontal telescopic rod (117), the number of horizontal telescopic rods (117) is two groups, and the sides of the horizontal telescopic rods (117) close to each other are connected with the rotating shaft supports (114).

3. The automatic sealing device of a food packaging machine according to claim 1, characterized in that: The rotating shaft support (114) is fixedly installed with a protective cover (118), and the sealing roller (115) is movably arranged in the protective cover (118).

4. The automatic sealing device of a food packaging machine according to claim 1, characterized in that: The top end of the support base plate (100) is fixedly installed with two centering guide plates (119), the centering guide plates (119) are arranged above the conveyor belt (116), and the top view projection shapes of the centering guide plates (119) are all trapezoidal.

5. The automatic sealing device of a food packaging machine according to claim 2, characterized in that: The top end of the horizontal telescopic rod (117) is simultaneously fixedly installed with a scale (120), the top end of the rotating shaft support (114) is fixedly installed with a pointer (121), the pointer (121) is provided with a through groove, and the scale (120) is arranged in the through grooves of the two pointers (121) simultaneously.

6. The automatic sealing device of a food packaging machine according to claim 1, characterized in that: The bottom end of the height telescopic rod (113) is fixedly installed with an electric sliding block, the top end of the support base plate (100) is fixedly installed with two sliding rails (122), and the electric sliding blocks at the bottom end of the height telescopic rod (113) are slidably installed on the sliding rails (122).

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