Rear transverse sealing and lower heat sealing assembly and wet tissue barrel film and roll film packaging machine

Abstract

The utility model provides a rear transverse sealing lower heat sealing assembly and a wet tissue barrel film rolling film packaging machine, the rear transverse sealing lower heat sealing assembly comprises a heat sealing block, the width of the heat sealing block is not smaller than the sealing width of a packaging bag, a containing groove for containing a cutting knife of an upper heat sealing assembly is formed in the top face of the heat sealing block, and the cutting knife is arranged in the containing groove. The top face of the heat sealing block is divided into a first heat sealing strip located on the upstream side of the conveying direction of the packaging bag and a second heat sealing strip located on the downstream side of the conveying direction of the packaging bag through the containing groove, a mounting groove is formed in the top face of the second heat sealing strip, and a heat insulation strip is arranged in the mounting groove. According to the utility model, the heat insulation strip is arranged on the top surface of the second heat sealing strip, so that the adhesion of cut excess materials in the heat sealing process of the packaging bag is reduced, even the adhesion is reduced to be close to zero, the cut excess materials do not need to be sucked away by high-pressure negative pressure suction force, the electricity is saved, and the sealing quality of the subsequent packaging bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wet wipes packaging equipment design, in particular to a rear transverse sealing and lower heat sealing component and a wet wipes tube film roll packaging machine. Background Art

[0002] The rear transverse sealing device of the wet wipes (mini-pack) tubular film roll packaging machine is used to transversely seal the wet wipes bag and simultaneously remove any excess material from the bag. The film used in the wet wipes tubular film roll packaging machine is heat-sealed, requiring pressure and heating to securely seal the bag without leaks. During the heat-pressing process, the heat of the heat-sealing block causes the remaining material in the bag to adhere to the lower heat-sealing block, requiring strong suction to remove the remaining material. Otherwise, this affects the sealing quality of the next bag, increasing the equipment's power consumption and limiting energy efficiency. The present utility model is proposed to at least partially address the aforementioned shortcomings of the related art. Utility Model Content

[0003] The rear transverse sealing and lower heat sealing components and the wet wipes tube film roll packaging machine designed in the utility model can at least partially solve the above problems.

[0004] The purpose of the present utility model is to provide a rear transverse sealing lower heat sealing assembly, comprising a heat sealing block, the width of the heat sealing block being not less than the sealing width of the packaging bag, a receiving groove for receiving the cutting knife of the upper heat sealing assembly being formed on the top surface of the heat sealing block, the receiving groove dividing the top surface of the heat sealing block into a first heat sealing strip located on the upstream side of the packaging bag conveying direction and a second heat sealing strip located on the downstream side of the packaging bag conveying direction, a mounting groove being formed on the top surface of the second heat sealing strip, and a heat insulation strip being provided in the mounting groove.

[0005] In some embodiments, the thermal insulation strip is made of elastic thermal insulation material, and when the thermal insulation strip is in a free state, the top surface of the thermal insulation strip is higher than the top surface of the first heat sealing strip.

[0006] In some embodiments, the thermal insulation strip is made of foamed silicone.

[0007] In some embodiments, an inner wall of the installation groove on a side close to the accommodating groove is a guiding slope.

[0008] In some embodiments, a groove is provided on a side of the top surface of the first heat sealing strip away from the mounting groove.

[0009] In some embodiments, the heat sealing block has two heating tubes, and the two heating tubes are respectively arranged corresponding to the first heat sealing strip and the second heat sealing strip.

[0010] In some embodiments, the rear transverse lower heat sealing assembly further includes a mounting bracket and a height adjustment assembly assembled on the mounting bracket, wherein the height adjustment assembly is used to adjust the height of the heat sealing block.

[0011] In some embodiments, the rear transverse lower heat sealing assembly further includes guide rods fixed to both width sides of the mounting bracket, and both width ends of the heat sealing block are slidably connected to the guide rods.

[0012] In some embodiments, the height adjustment assembly includes a screw and a nut threadedly connected to the screw, the nut is fixedly assembled on the mounting bracket, one end of the screw is rotatably connected to the bottom of the heat sealing block, and the other end of the screw is fixedly connected to a handwheel.

[0013] The utility model also provides a wet wipes roll film packaging machine, comprising the above-mentioned rear transverse sealing and lower heat sealing components.

[0014] The rear transverse sealing and lower heat sealing components and wet wipes roll film packaging machine of the utility model:

[0015] By arranging a heat insulation strip on the top surface of the second heat sealing strip, the adhesion of the cut waste is reduced during the heat sealing process of the packaging bag, even to near zero. In this way, there is no need for high-pressure negative pressure suction to remove the cut waste, which saves electricity and improves the sealing quality of subsequent packaging bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the rear transverse seal lower heat seal assembly of an embodiment of the present utility model.

[0017] Figure 2 yes Figure 1 Front view of .

[0018] Figure 3 yes Figure 2 Cross-section of AA.

[0019] In the picture:

[0020] 1. Heat sealing block; 11. Receiving groove; 12. First heat sealing strip; 121. Groove; 13. Second heat sealing strip; 2. Heat insulation strip; 3. Heating tube; 4. Mounting bracket; 41. Guide rod; 5. Height adjustment assembly; 51. Screw rod; 52. Nut; 53. Handwheel; 54. Bearing. DETAILED DESCRIPTION

[0021] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. In the figures, regions and layer thicknesses are exaggerated for clarity. Identical reference numerals in the figures denote identical or similar structures, and thus detailed descriptions thereof will be omitted.

[0022] The described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be employed. In other cases, well-known structures, materials or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0023] The following examples describe embodiments of the rear transverse seal lower heat seal assembly and wet wipes roll film packaging machine of the present invention. These examples are only a portion of the embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. All other embodiments derived by persons of ordinary skill in the art without inventive effort are intended to fall within the scope of protection of the present invention.

[0024] Please refer to Figures 1 to 3 As shown, according to an embodiment of the present invention, a rear transverse seal lower heat sealing assembly is provided, comprising a heat sealing block 1, the width of the heat sealing block 1 (ie Figure 2 The left and right directions of the orientation shown) are not less than the sealing width of the packaging bag, and a accommodating groove 11 for accommodating a cutting knife of the upper heat sealing assembly is formed on the top surface of the heat sealing block 1. The cutting knife is used to cut off the remaining material after the packaging bag is heat-sealed. The accommodating groove 11 separates the top surface of the heat sealing block 1 into a first heat sealing strip 12 on the upstream side of the packaging bag conveying direction and a second heat sealing strip 13 on the downstream side of the packaging bag conveying direction. A mounting groove (not marked in the figure) is formed on the top surface of the second heat sealing strip 13, and a thermal insulation strip 2 is arranged in the mounting groove to ensure that the thermal insulation strip 2 can be stably and reliably limited in the mounting groove.

[0025] In this technical solution, by arranging a heat insulating strip 2 on the top surface of the second heat sealing strip 13, the adhesion of the cut waste is reduced during the heat sealing process of the packaging bag, and even reduced to close to zero. In this way, there is no need for high-pressure negative pressure suction to remove the cut waste, which saves electricity and improves the sealing quality of subsequent packaging bags.

[0026] In some embodiments, the insulation strip 2 is made of elastic insulation material, and when the insulation strip 2 is in a free state, the top surface of the insulation strip 2 is higher than the top surface of the first heat sealing strip 12. In a specific embodiment, the insulation strip 2 is made of foamed silicone, which has high elasticity and high insulation effect, and is relatively low in price.

[0027] In this technical solution, the thermal insulation strip 2 is made of elastic thermal insulation material, and its top surface protrudes from the top surface of the first heat sealing strip 12. This allows the elasticity of the thermal insulation strip 2 to push the remaining material upward after the upper heat sealing assembly is raised, further reducing the adhesion between the remaining material and the heat sealing block 1. The thermal insulation strip 2 can be assembled in the aforementioned mounting groove by gluing or interference fit.

[0028] In some embodiments, the inner wall of the installation groove close to the receiving groove 11 is a guiding slope, so that the groove opening of the installation groove is a flared structure, which is conducive to the assembly of the insulation strip 2. At the same time, since the guiding slope is located on the side of the installation groove close to the receiving groove 11, the contact area between the second heat sealing strip 13 and the packaging bag can be further reduced, further reducing the probability of residual material adhesion.

[0029] In some embodiments, a groove 121 is provided on the top surface of the first heat sealing strip 12 on a side away from the mounting groove. Specifically, the groove 121 runs through the width of the heat sealing block 1 from left to right. Since the groove 121 is located on the side away from the mounting groove, the heat sealing adhesion strength between the top surface of the first heat sealing strip 12 and the packaging bag can be reduced.

[0030] See Figure 3 As shown, the heat sealing block 1 has two heating tubes 3 , and the two heating tubes 3 are respectively provided corresponding to the first heat sealing strip 12 and the second heat sealing strip 13 .

[0031] As a preferred embodiment, the rear transverse lower heat sealing assembly further includes a mounting bracket 4 and a height adjustment assembly 5 assembled on the mounting bracket 4. The height adjustment assembly 5 is used to adjust the height of the heat sealing block 1 so that the rear transverse lower heat sealing assembly in the present invention can be suitable for sealing operations of packaging bags of different thicknesses.

[0032] In some embodiments, the rear transverse lower heat sealing assembly further includes guide rods 41 fixed on both sides of the width of the mounting bracket 4, and the two ends of the width of the heat sealing block 1 are slidably connected to the guide rods 41, which can ensure the smoothness of the lifting and lowering of the heat sealing block 1. Specifically, the top end of the aforementioned guide rod 41 is fixedly connected to the heat sealing block 1, and the guide rod 41 is slidably connected to the mounting bracket 4 through a sliding bearing (not marked in the figure).

[0033] As a specific implementation method, see Figure 3 As shown, the height adjustment assembly 5 includes a screw rod 51 and a nut 52 threadedly connected to the screw rod 51, the nut 52 is fixedly assembled on the mounting bracket 4, one end of the screw rod 51 is rotatably connected to the bottom of the heat sealing block 1, and the other end of the screw rod 51 is fixedly connected to a hand wheel 53. When the height of the heat sealing block 1 needs to be adjusted, the operator manually rotates the hand wheel 53 to drive the screw rod 51 to rotate a certain number of cycles. The screw rod 51 and the nut 52 form a transmission pair. Since the axial displacement of the nut 52 is fixed, the screw rod 51 produces a linear movement of lifting and lowering, thereby realizing the height adjustment of the heat sealing block 1. The structure is simple and the operation is convenient.

[0034] According to an embodiment of the present invention, a wet wipes roll film packaging machine is also provided, comprising the above-mentioned rear transverse sealing and lower heat sealing assembly.

[0035] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A rear transverse seal lower heat seal assembly, characterized in that: The invention comprises a heat sealing block (1), the width of the heat sealing block (1) is not less than the sealing width of the packaging bag, the top surface of the heat sealing block (1) is formed with a receiving groove (11) for receiving the cutting knife of the upper heat sealing assembly, the receiving groove (11) separates the top surface of the heat sealing block (1) into a first heat sealing strip (12) on the upstream side of the packaging bag conveying direction and a second heat sealing strip (13) on the downstream side of the packaging bag conveying direction, the top surface of the second heat sealing strip (13) is formed with an installation groove, and the installation groove is provided with a heat insulation strip (2).

2. The rear transverse lower heat sealing assembly according to claim 1, characterized in that: The material of the thermal insulation strip (2) is an elastic thermal insulation material, and when the thermal insulation strip (2) is in a free state, the top surface of the thermal insulation strip (2) is higher than the top surface of the first heat sealing strip (12).

3. The rear transverse lower heat sealing assembly according to claim 2, characterized in that: The material of the heat insulation strip (2) is foamed silica gel.

4. The rear transverse lower heat sealing assembly according to claim 1, characterized in that: The inner wall of the installation groove on the side close to the accommodating groove (11) is a guiding inclined surface.

5. The rear transverse lower heat sealing assembly according to claim 1, characterized in that: A groove (121) is provided on the top surface of the first heat sealing strip (12) in an area on one side away from the mounting groove.

6. The rear transverse lower heat sealing assembly according to claim 1, characterized in that: The heat sealing block (1) has two heating tubes (3), and the two heating tubes (3) are respectively arranged corresponding to the first heat sealing strip (12) and the second heat sealing strip (13).

7. The rear transverse lower heat sealing assembly according to claim 1, characterized in that: It also includes a mounting bracket (4) and a height adjustment component (5) assembled on the mounting bracket (4), wherein the height adjustment component (5) is used to adjust the height of the heat sealing block (1).

8. The rear transverse lower heat sealing assembly according to claim 7, characterized in that: It also includes guide rods (41) fixed on both sides of the width of the mounting bracket (4), and both ends of the width of the heat sealing block (1) are slidably connected to the guide rods (41).

9. The rear transverse lower heat sealing assembly according to claim 7, characterized in that: The height adjustment assembly (5) comprises a screw rod (51) and a nut (52) threadedly connected to the screw rod (51); the nut (52) is fixedly assembled on the mounting bracket (4); one end of the screw rod (51) is rotatably connected to the bottom of the heat sealing block (1); and the other end of the screw rod (51) is fixedly connected to a hand wheel (53).

10. A wet wipes roll film packaging machine, characterized in that: The invention comprises the rear transverse seal lower heat seal component according to any one of claims 1 to 9.

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