Longitudinal sealing mechanism of pillow type packaging machine

Abstract

The utility model provides a longitudinal sealing mechanism of a pillow type packaging machine, which belongs to the technical field of packaging equipment and comprises a packaging machine main body, a conveying belt, a support frame, a heat sealing device, a support, a pressure adjusting mechanism, a sealing wheel, an electric telescopic rod, a rack, a cross beam, a movable seat, an adjusting screw rod, a fixed frame and a heating roller, three sets of heating rollers are installed on the inner side of a fixing frame, the three sets of heating rollers are vertically distributed at equal intervals, compared with a traditional transversely-arranged heating roller, the three sets of heating rollers are evenly distributed on the inner side of the fixing frame, the heating rollers are evenly distributed on the inner side of the fixing frame, and the heating rollers are evenly distributed on the supporting frame. The three sets of vertically-arranged heating rollers can achieve stepped temperature distribution, preheating-fusing-shaping progressive sealing is achieved when packaging passes, the sealing strength of the PP / PE composite film can be improved, and the PP / PE composite film sealing device is particularly suitable for materials prone to heat shrinkage.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a longitudinal sealing mechanism for a pillow-type packaging machine. Background Technology

[0002] Pillow packaging machines are automatic continuous shrink packaging equipment that can be used for continuous packaging of various specifications for food and non-food packaging. They can achieve four-sided sealing packaging, and the packaged product is pillow-shaped. The product is pushed into the formed tubular film, and the longitudinal seam of the packaging film is heat-sealed from the longitudinal edge of the film by heated rollers.

[0003] In practical use, it has been found that the existing longitudinal sealing mechanism of the pillow packaging machine has the following shortcomings: Traditional longitudinal sealing uses a horizontally arranged heating roller to heat seal the longitudinal seam of the packaging film. The contact area between the single heating roller and the packaging film is fixed, and the temperature of the heating roller is constant. Traditional constant temperature control causes heat damage to the packaging material during heat sealing, resulting in problems such as poor sealing and poor sealing strength. Furthermore, the position adjustment of the heating roller is difficult, requiring machine stoppage for adjustment. Frequent parameter adjustments are needed when changing packaging materials, resulting in poor adaptability to various packaging materials and shapes. Therefore, this application provides a longitudinal sealing mechanism for the pillow packaging machine to meet the requirements. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a longitudinal sealing mechanism for a pillow packaging machine.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A pillow-type packaging machine's longitudinal sealing mechanism includes: a packaging machine body, a conveyor belt, a support frame, a heat sealing device, a support, a pressure regulating mechanism, a sealing wheel, an electric telescopic rod, a frame, a crossbeam, a movable seat, an adjusting screw, a fixed frame, and a heating roller. The front end of the packaging machine body is fitted with a conveyor belt, and the bottom of the conveyor belt is fitted with a support frame. The front end of the base of the packaging machine body is fitted with a heat sealing device. A support is fitted at one end of the packaging machine body near the heat sealing device. A pressure regulating mechanism is fitted at the upper side of the support, and a sealing wheel is fitted at the lower end of the pressure regulating mechanism. An electric telescopic rod is fitted inside the support, and a frame is fitted at the output end of the electric telescopic rod. A crossbeam is fitted at the lower inner side of the frame, and a movable seat is fitted on the crossbeam. An adjusting screw is fitted on the side of the movable seat, and a fixed frame is welded to the bottom of the movable seat. A heating roller is fitted inside the fixed frame.

[0007] Preferably, the support is installed vertically at the outer end of the opening of the conveyor belt, and the support is horizontally mounted on the upper outer side of the conveyor belt.

[0008] Preferably, the electric telescopic rod is vertically installed at the middle of the upper end of the support, and the frame is movably connected to the support through the electric telescopic rod.

[0009] Preferably, the crossbeam is rectangular and the movable seat is movably connected to the crossbeam.

[0010] Preferably, the crossbeam is provided with two sets of movable seats, which are horizontally nested at the outer end of the crossbeam.

[0011] Preferably, one end of the adjusting screw extends through the movable seat to the inner side of the movable seat and abuts against the surface of the crossbeam, and a nut is fitted on the adjusting screw.

[0012] Preferably, three sets of heating rollers are installed on the inner side of the fixing frame, the three sets of heating rollers extend outward to the outer end of the fixing frame, and the three sets of heating rollers are vertically and equidistantly distributed.

[0013] Preferably, the side of the fixing frame is provided with an opening, and the fixing frames at the lower ends of the two sets of movable seats on the crossbeam are arranged opposite each other.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above solution, three sets of heating rollers are installed on the inner side of the fixed frame and are arranged vertically at equal intervals. Compared with the traditional horizontally arranged heating rollers, the three sets of vertically arranged heating rollers can achieve a stepped temperature distribution, realize a progressive seal of preheating-fusion-shaping when the packaging passes through, and improve the sealing strength of PP / PE composite film, which is especially suitable for heat-shrinkable materials.

[0016] In the above solution, the electric telescopic rod can extend and retract to move the frame up and down on the inner side of the support, thereby facilitating the adjustment of the position of the heating roller. The movable seat can move laterally along the crossbeam to adjust the lateral distance of the heating roller, thus adapting to products and packaging of various heights for longitudinal sealing. It can meet the requirements of different packaging forms or sealing widths and is compatible with different types of packaging. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0018] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 is a schematic diagram of the specific connection structure between the support and the frame of this utility model;

[0020] Figure 3 is a schematic diagram of the specific connection structure of the movable seat of this utility model;

[0021] Figure 4 is a schematic diagram of the specific connection structure between the fixing frame and the heating roller of this utility model.

[0022] [Figure Labels]

[0023] 1-Main body of packaging machine; 2-Conveyor belt; 3-Support frame; 4-Heat sealing device; 5-Support; 6-Pressure regulating mechanism; 7-Sealing wheel; 8-Electric telescopic rod; 9-Frame; 10-Crossbeam; 11-Modible seat; 12-Adjusting screw; 13-Fixed frame; 14-Heating roller.

[0024] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] As shown in Figures 1, 2, and 3, and Figure 4The embodiment of this utility model provides a longitudinal sealing mechanism for a pillow-type packaging machine, comprising: a packaging machine body 1, a conveyor belt 2, a support frame 3, a heat sealing device 4, a support 5, a pressure regulating mechanism 6, a sealing wheel 7, an electric telescopic rod 8, a frame 9, a crossbeam 10, a movable seat 11, an adjusting screw 12, a fixed frame 13, and a heating roller 14. The conveyor belt 2 is installed at the front end of the packaging machine body 1, and the support frame 3 is installed at the bottom of the conveyor belt 2. The heat sealing device 4 is installed at the front end of the base of the packaging machine body 1. A support 5 is installed at one end of the packaging machine body 1 near the heat sealing device 4. A pressure regulating mechanism 6 is installed at the upper side of the support 5, and a sealing wheel 7 is installed at the lower end of the pressure regulating mechanism 6. An electric telescopic rod 8 is installed inside the support 5, and a frame 9 is installed at the output end of the electric telescopic rod 8. A crossbeam 10 is installed at the lower inner side of the frame 9. A movable seat 11 is installed on the upper part, an adjusting screw 12 is installed on the side of the movable seat 11, a fixed frame 13 is welded to the bottom of the movable seat 11, and a heating roller 14 is installed on the inner side of the fixed frame 13.

[0028] In this embodiment, the support 5 is vertically installed at the outer end of the opening of the conveyor belt 2, and the support 5 is horizontally mounted on the upper outer side of the conveyor belt 2. When the product is pushed into the heat sealing device 4 by the conveyor belt 2, it is packaged in the formed cylindrical film and then sealed at the support 5.

[0029] In this embodiment, the electric telescopic rod 8 is vertically installed at the upper middle of the support 5, and the frame 9 is movably connected to the support 5 through the electric telescopic rod 8. The extension and retraction of the electric telescopic rod 8 can drive the frame 9 to move up and down on the inner side of the support 5, thereby facilitating the adjustment of the position of the heating roller 14. This allows it to adapt to products and packaging of various heights for longitudinal sealing, meeting the requirements of different packaging forms such as straight sealing, wave sealing, or sealing width, and is compatible with different types of packaging.

[0030] In this embodiment, the crossbeam 10 is rectangular and the movable seat 11 is movably connected to the crossbeam 10. The movable seat 11 can move laterally along the crossbeam 10 to adjust the lateral distance of the heating roller 14.

[0031] In this embodiment, two sets of movable seats 11 are provided on the crossbeam 10, and the two sets of movable seats 11 are horizontally nested at the outer end of the crossbeam 10.

[0032] In this embodiment, one end of the adjusting screw 12 passes through the movable seat 11 and extends to the inner side of the movable seat 11, abutting against the surface of the crossbeam 10. A nut is installed on the adjusting screw 12. The position of the movable seat 11 on the crossbeam 10 can be adjusted by adjusting the adjusting screw 12.

[0033] In this embodiment, three sets of heating rollers 14 are installed on the inner side of the fixing frame 13. The three sets of heating rollers 14 extend outward to the outer end of the fixing frame 13 and are vertically equidistantly distributed. Compared with the traditional horizontally arranged heating rollers 14, the three sets of vertically arranged heating rollers 14 can achieve a stepped temperature distribution, realizing a progressive sealing of preheating-fusion-shaping when the packaging passes through, which can improve the sealing strength of PP / PE composite film, especially suitable for heat-shrinkable materials.

[0034] In this embodiment, the side of the fixing frame 13 is provided with an opening, and the fixing frames 13 at the lower end of the two sets of movable seats 11 on the crossbeam 10 are arranged opposite each other, so that when the packaging passes through the two sets of fixing frames 13, both sides of the packaging can be longitudinally sealed by the heating roller 14 at the same time.

[0035] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A longitudinal sealing mechanism for a pillow-type packaging machine, characterized in that, include: The packaging machine comprises a main body (1), a conveyor belt (2), a support frame (3), a heat sealing device (4), a support (5), a pressure regulating mechanism (6), a sealing wheel (7), an electric telescopic rod (8), a frame (9), a crossbeam (10), a movable seat (11), an adjusting screw (12), a fixed frame (13), and a heating roller (14). The front end of the main body (1) is equipped with a conveyor belt (2), the bottom of the conveyor belt (2) is equipped with a support frame (3), the front end of the base of the main body (1) is equipped with a heat sealing device (4), and the end of the main body (1) near the heat sealing device (4) is equipped with a support (5). A pressure regulating mechanism (6) is installed at the upper side of the support (5), a sealing wheel (7) is installed at the lower end of the pressure regulating mechanism (6), an electric telescopic rod (8) is installed on the inner side of the support (5), a frame (9) is installed at the output end of the electric telescopic rod (8), a crossbeam (10) is installed at the lower inner side of the frame (9), a movable seat (11) is installed on the crossbeam (10), an adjusting screw (12) is installed on the side of the movable seat (11), a fixed frame (13) is welded to the bottom of the movable seat (11), and a heating roller (14) is installed on the inner side of the fixed frame (13).

2. The longitudinal sealing mechanism of the pillow-type packaging machine according to claim 1, characterized in that: The support (5) is vertically installed at the outer end of the opening of the conveyor belt (2), and the support (5) is horizontally mounted on the upper outer side of the conveyor belt (2).

3. The longitudinal sealing mechanism of the pillow-type packaging machine according to claim 1, characterized in that: The electric telescopic rod (8) is vertically installed at the middle of the upper end of the support (5), and the frame (9) is movably connected to the support (5) through the electric telescopic rod (8).

4. The longitudinal sealing mechanism of the pillow-type packaging machine according to claim 1, characterized in that: The crossbeam (10) is rectangular and long, and the movable seat (11) is movably connected to the crossbeam (10).

5. The longitudinal sealing mechanism of the pillow-type packaging machine according to claim 1, characterized in that: Two sets of movable seats (11) are provided on the crossbeam (10), and the two sets of movable seats (11) are horizontally nested at the outer end of the crossbeam (10).

6. The longitudinal sealing mechanism of the pillow packaging machine according to claim 1, characterized in that: One end of the adjusting screw (12) extends through the movable seat (11) to the inner side of the movable seat (11) and abuts against the surface of the crossbeam (10), and a nut is installed on the adjusting screw (12).

7. The longitudinal sealing mechanism of the pillow-type packaging machine according to claim 1, characterized in that: Three sets of heating rollers (14) are installed on the inner side of the fixed frame (13). The three sets of heating rollers (14) extend outward to the outer end of the fixed frame (13) and are distributed vertically at equal intervals.

8. The longitudinal sealing mechanism of the pillow packaging machine according to claim 1, characterized in that: The side of the fixed frame (13) is provided with an opening, and the fixed frames (13) at the lower ends of the two sets of movable seats (11) on the crossbeam (10) are arranged opposite to each other.

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