Heat sealing device of packaging machine
By installing the first connecting part and the first guide rod on the hot press head, the hot press head can be moved vertically, and the problem of incomplete bonding of the hot press head and transparent paper film is solved, improving the packaging effect and reducing wrinkling.
Patent Information
- Application Number
- CN202510070752.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-03-11
AI Technical Summary
In the prior art, when the hot press head enters the opening, the contact surface is in a rotating form, resulting in incomplete bonding with the transparent paper film, resulting in poor packaging and wrinkling problems.
By installing the first connecting portion and the first guide rod on the hot press head, the hot press head can be moved up and down perpendicular to the opening height direction, ensuring that the contact surface on the lower side of the hot press head is fully fitted with the transparent paper film on the cigarette box.
The perfect fit between the hot press head and the transparent paper film is achieved, which improves the packaging effect and reduces the wrinkling phenomenon of the transparent paper film. Moreover, since the hot press head can move vertically, the area of the opening can be kept small, avoiding excessive exposure of the transparent paper film.
Smart Images
Figure CN119590698A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of packaging machines, and in particular to a heat sealing device for a packaging machine. Background Art
[0002] A layer of transparent paper film is wrapped around the outside of the cigarette pack to seal and protect the aroma. The packaging machine uses a heat-sealing device to seal the transparent paper film on the outside of the cigarette box so that the transparent paper film is tightly wrapped around the outside of the cigarette box.
[0003] The cigarette box is inserted into the outer side of the forming wheel, and a pressure plate is installed on the upper side of the forming wheel, and an opening is set on the pressure plate. When the forming wheel drives the cigarette box to rotate to the first station, the packaging machine installs the transparent paper film on the outer side of the cigarette box, and then the forming wheel drives the cigarette box to continue to rotate to the lower side of the opening. The hot pressing head is installed on the rotating shaft through the rotating rod, and the rotating shaft drives the hot pressing head to rotate into the opening, so that the hot pressing head contacts the transparent paper film, so that the transparent paper film is tightly wrapped on the outer side of the cigarette box. However, since the hot pressing head enters the opening in a rotating manner, the contact surface also enters the opening in a rotating manner, and the rotating shaft The axis of the hot pressing head is parallel to the rotation axis of the forming wheel, and one side of the contact surface on the hot pressing head will be lifted relative to the cigarette box in the opening, resulting in the area on one side of the contact surface and the corresponding transparent paper film on the lower side being unable to completely fit together, and the transparent paper film cannot be hot-pressed, causing the transparent paper film in this area to wrinkle, affecting the packaging effect. At the same time, in order to avoid limitation between the hot pressing head and the pressing plate, and to facilitate subsequent adjustment of the hot pressing position, the opening will be enlarged, resulting in a gap between the opening and the hot pressing head. The transparent paper film in the gap cannot be hot-pressed and will also wrinkle. Summary of the invention
[0004] The object of the present invention is to provide a heat sealing device for a packaging machine, which solves the problem in the prior art that the lower contact surface cannot completely fit with the transparent paper film in the opening, resulting in wrinkles in the transparent paper film packaging.
[0005] To achieve this purpose, the present invention adopts the following technical scheme: the present invention provides a packaging machine heat sealing device, including a forming wheel, the forming wheel rotates around the main axis, a processing groove is formed on the outer circumference of the forming wheel, a cigarette box is placed in the processing groove, a pressure plate is abutted on one side of the forming wheel, the pressure plate presses the transparent paper film, the pressure plate is arc-shaped, an opening is formed on the pressure plate, the inner wall of the opening abuts against the hot pressing head, a first connecting part is installed on the upper side of the hot pressing head, a first sliding hole is formed on the upper side of the first connecting part, the first sliding hole is long strip-shaped, a first guide rod is passed through the first sliding hole, both ends of the first guide rod are connected to the adapter, the adapter is connected to the auxiliary shaft, the auxiliary shaft drives the adapter to rotate, and the axes of the auxiliary shaft, the main shaft and the first guide rod are parallel to each other.
[0006] Preferably, the hot pressing head includes a guide member and an electric perm member, the guide member is provided with a first through hole, the electric perm member is provided with a first stud on the upper side, the first stud is passed through the first through hole, a first nut is screwed on the first stud, the first nut abuts against the guide member, the area of the guide member is larger than that of the electric perm member, and the guide member abuts against the inner wall of the opening in the circumferential direction.
[0007] Preferably, the guide member is made of copper.
[0008] Preferably, a heat insulating sheet is sandwiched between the guide member and the electric iron member, a sleeve is formed on the heat insulating sheet, the first stud is inserted into the sleeve, and the sleeve is inserted into the first through hole.
[0009] Preferably, a guide portion is formed on the circumferential protrusion of the opening outside the pressure plate, a guide groove is formed in the guide portion, and the guide groove is located on one side of the opening and is chamfered.
[0010] Preferably, the first connecting portion is screwed into the guide member.
[0011] Preferably, the adapter part includes an adapter bracket, a second connecting part and a second guide rod, the second connecting part is formed with a second sliding hole, the second guide rod is inserted in the second sliding hole, the second connecting part is screwed on the auxiliary shaft, the adapter bracket is H-shaped, the adapter bracket includes ribs, gaps are formed between the ribs, the first connecting part and the second connecting part are inserted in the gaps, fixing screw holes are symmetrically formed at both ends of the ribs, the first guide rod and the second guide rod are screwed in the fixing screw holes, and the first guide rod and the second guide rod are parallel.
[0012] Beneficial effect: driven by the self-rotation of the auxiliary shaft, the adapter part rotates with the auxiliary shaft, and the first guide rod at the front end of the adapter part slides in the first sliding hole along the length direction of the first sliding hole, so that the hot pressing head can move up and down perpendicular to the height direction of the opening, so that the lower side of the hot pressing head can be completely fitted with the transparent paper film on the cigarette box, so that the plastic sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a main body diagram of the heat sealing device of the packaging machine of the present invention;
[0014] Figure 2 This is a diagram of the installation of the thermal press head of the present invention;
[0015] Figure 3 It is an exploded view of the hot pressing head of the present invention.
[0016] In the figure: 1. forming wheel; 11. processing groove; 12. guide part; 2. cigarette box; 3. pressing plate; 31. opening; 4. hot pressing head; 41. guide member; 411. first through hole; 42. electric iron member; 421. first stud; 43. heat insulation sheet; 431. sleeve; 5. first connecting part; 6. first guide rod; 7. adapter part; 71. adapter bracket; 711. rib plate; 72. second connecting part; 73. second guide rod; 8. auxiliary shaft. DETAILED DESCRIPTION
[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0018] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0020] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0021] Under the existing technology, the connecting rod is driven to rotate by the auxiliary shaft, and the hot pressing head installed perpendicular to the connecting rod will also rotate. When the hot pressing head approaches the cigarette box on the forming wheel along the opening, the hot pressing head still moves downward in an arc form. In this way, the area of the opening needs to be increased to avoid the hot pressing head being limited by the inner wall of the opening when it moves in an arc in the height direction of the opening. This will cause part of the transparent paper film on the cigarette box to be exposed, resulting in wrinkles during the hot pressing process; at the same time, since the contact surface on the lower side of the hot pressing head is a plane, when the hot pressing head rotates close to the cigarette box on the auxiliary shaft, the contact surface will form a certain angle with the surface of the transparent paper film, resulting in the transparent paper film in one area being unable to be hot pressed, causing the transparent paper film of the final cigarette box packaging to wrinkle.
[0022] In order to solve the above problems, Figures 1 to 3 As shown, the present invention provides a heat sealing device for a packaging machine, which includes a forming wheel 1, which rotates around a main axis, a processing groove 11 is formed on the outer circumference of the forming wheel 1, a cigarette box 2 is placed in the processing groove 11, a pressing plate 3 is abutted on one side of the forming wheel 1, the pressing plate 3 presses a transparent paper film, the pressing plate 3 is arc-shaped, an opening 31 is formed on the pressing plate 3, the inner wall of the opening 31 abuts against a hot pressing head 4, a first connecting part 5 is installed on the upper side of the hot pressing head 4, a first sliding hole is formed on the upper side of the first connecting part 5, the first sliding hole is in a long strip shape, a first guide rod 6 is passed through the first sliding hole, both ends of the first guide rod 6 are connected to a transfer part 7, the transfer part 7 is connected to an auxiliary shaft 8, the auxiliary shaft 8 drives the transfer part 7 to rotate, and the axes of the auxiliary shaft 8, the main shaft and the first guide rod 6 are parallel to each other.
[0023] Six groups of processing grooves 11 are arranged on the circumference of the forming wheel 1, and a cigarette box 2 is placed in each group of processing grooves 11. During the hot pressing process, the forming wheel 1 rotates the cigarette box 2 to be hot pressed to the first station in turn, and the transparent paper film is cut. Then the forming wheel 1 rotates the cigarette box 2 to the second station and the third station to heat seal the transparent paper film, wherein a pressing plate 3 is arranged on one side of the second station and the third station to press the transparent paper film to keep the transparent paper film flat. Then the auxiliary shaft 8 rotates to drive the adapter 7 to rotate, and the adapter 7 drives the hot pressing head 4 to rotate so that the hot pressing head 4 is inserted into the opening 31. When the hot pressing head 4 moves down along the opening 31, the first guide rod 6 moves along the first The sliding hole slides toward the side close to the auxiliary shaft 8, and when the hot pressing head 4 moves up along the opening 31, the first guide rod 6 slides along the first sliding hole toward the side away from the auxiliary shaft 8. Through the relative movement between the first guide rod 6 and the first connecting part 5, the hot pressing head 4 always moves up and down perpendicular to the opening 31, so that the contact surface on the lower side of the hot pressing head 4 and the side of the cigarette box 2 being hot-pressed are always kept parallel, the contact area is larger, and the final hot pressing effect is better. At the same time, since the hot pressing head 4 can move in the height direction of the opening 31 perpendicularly, the area of the opening 31 can be made smaller, and the side wall of the opening 31 can be fitted with the side wall of the hot pressing head 4, reducing the exposed transparent paper film area, so that the final hot pressing forming effect of the cigarette box 2 is better.
[0024] The hot pressing head 4 includes a guide 41 and an electric pressing member 42. The lower surface of the electric pressing member 42 is a contact surface. The guide 41 is provided with a first through hole 411. The upper side of the electric pressing member 42 is provided with a first stud 421. The first stud 421 is inserted into the first through hole 411. The first stud 421 is screwed with a first nut. The first nut abuts against the guide 41. The area of the guide 41 is larger than that of the electric pressing member 42. The guide 41 abuts against the inner wall of the opening 31 in the circumferential direction. The hot pressing head 4 can be plugged in by cooperating with the opening 31. When the position of the first through hole 411 is changed, the installation position of the electric pressing member 42 can be changed, and the hot pressing position of the electric pressing member 42 can be changed. At the same time, by replacing the guide 41 with different thicknesses, the crimping strength of the electric pressing member 42 can be adjusted. The thicker the guide 41 is, the greater the crimping strength of the electric pressing member 42 will be.
[0025] The guide member 41 of the present invention is made of copper. Since the pressure plate 3 is made of iron and the hardness of copper is relatively low, when the guide member 41 collides with the pressure plate 3, since the guide member 41 is relatively soft, it will not damage the structure of the pressure plate 3 and protect the pressure plate 3.
[0026] A heat insulating sheet 43 is sandwiched between the guide member 41 and the electric iron member 42. A sleeve 431 is formed on the heat insulating sheet 43. The first stud 421 is inserted into the sleeve 431. The sleeve 431 is inserted into the first through hole 411. The heat insulating sheet 43 can prevent the heat generated by the electric iron member 42 from being transferred to the guide member 41 to prevent the guide member 41 from being deformed. Since the area of the opening 31 is close to the area and shape of the guide member 41, the heat insulating sheet 43 can prevent the guide member 41 from being deformed, and the guide member 41 can be always inserted into the opening 31.
[0027] A guide portion 12 is formed on the circumferential protrusion of the opening 31 on the outer side of the pressure plate 3, and a guide groove is formed in the guide portion 12. The guide groove is located on one side of the opening 31 and has a chamfer. By setting the chamfer, the area on the upper side of the opening 31 can be expanded to facilitate the crimping of the hot pressing head 4. When the edge of the electric pressing part 42 contacts the chamfer, it will slide into the opening 31 along the inclined surface.
[0028] The first connection part 5 of the present invention is screwed into the guide member 41, which is convenient for later maintenance and disassembly. The adapter part 7 includes an adapter bracket 71, a second connection part 72 and a second guide rod 73. The second connection part 72 is formed with a second sliding hole, and the second guide rod 73 is inserted into the second sliding hole. The second connection part 72 is screwed onto the auxiliary shaft 8. The adapter bracket 71 is H-shaped. The adapter bracket 71 includes ribs 711. A gap is formed between the ribs 711. The first connection part 5 and the second connection part are inserted into the gap. The two ends of the ribs 711 are symmetrically formed with fixing screw holes. The first guide rod 6 and the second guide rod 73 are screwed into the fixing screw holes. The first guide rod 6 and the second guide rod 73 are parallel.
[0029] The first guide rod 6 can rotate and move along the length direction in the first sliding hole, and the length direction is tangent to the arc surface of the pressure plate 3. The second guide rod 73 can be tightly matched with the adapter bracket 71, so that the auxiliary shaft 8 can directly drive the first connecting part 5 to move along the height direction of the opening 31. At the same time, the second sliding hole therein can also be made into an elongated strip shape, so that the adapter part 7 can obtain a greater degree of freedom. When the second sliding hole is elongated, the adapter bracket 71 can rotate freely relative to the first connecting part 5 and the second connecting part 72, and at the same time, the length of the first sliding hole can be shortened. After the auxiliary shaft 8 rotates and the second guide rod 73 moves linearly to the extreme position in the second sliding hole, the auxiliary shaft 8 can continue to rotate, so that the first guide rod 6 continues to move linearly to the extreme position in the first sliding hole. In this way, the distance that the hot pressing head 4 can move in the opening 31 can be lengthened, so that the hot pressing head 4 can always keep moving in the height direction of the opening 31.
[0030] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.
Claims
1. A heat sealing device for a packaging machine, characterized in that: The invention comprises a forming wheel (1), the forming wheel (1) rotates around a main axis, a processing groove (11) is formed on the outer circumference of the forming wheel (1), a cigarette box (2) is placed in the processing groove (11), a pressing plate (3) is abutted on one side of the forming wheel (1), the pressing plate (3) presses a transparent paper film, the pressing plate (3) is arc-shaped, an opening (31) is formed on the pressing plate (3), the inner wall of the opening (31) abuts against a hot pressing head (4), and the upper side of the hot pressing head (4) is A first connecting part (5) is installed, a first sliding hole is opened on the upper side of the first connecting part (5), the first sliding hole is in the shape of an elongated strip, a first guide rod (6) is passed through the first sliding hole, two ends of the first guide rod (6) are connected to a transfer part (7), the transfer part (7) is connected to an auxiliary shaft (8), the auxiliary shaft (8) drives the transfer part (7) to rotate, and the axes of the auxiliary shaft (8), the main shaft and the first guide rod (6) are parallel to each other.
2. The heat sealing device for packaging machine according to claim 1, characterized in that: The hot pressing head (4) comprises a guide member (41) and an electric pressing member (42); a first through hole (411) is provided on the guide member (41); a first stud (421) is provided on the upper side of the electric pressing member (42); the first stud (421) is inserted into the first through hole (411); a first nut is screwed onto the first stud (421); the first nut abuts against the guide member (41); the area of the guide member (41) is larger than that of the electric pressing member (42); and the guide member (41) abuts against the inner wall of the opening (31) in the circumferential direction.
3. The heat sealing device for packaging machine according to claim 2, characterized in that: The guide member (41) is made of copper.
4. The heat sealing device for packaging machine according to claim 2, characterized in that: A heat insulating sheet (43) is sandwiched between the guide member (41) and the electric iron member (42), a sleeve (431) is formed on the heat insulating sheet (43), the first stud (421) is inserted into the sleeve (431), and the sleeve (431) is inserted into the first through hole (411).
5. The heat sealing device for packaging machine according to claim 1, characterized in that: A guide portion (12) is formed on the circumferential protrusion of the opening (31) outside the pressure plate (3), a guide groove is formed in the guide portion (12), and the guide groove is located on one side of the opening (31) and has a chamfer.
6. The heat sealing device for packaging machine according to claim 2, characterized in that: The first connecting portion (5) is screwed into the guide member (41).
7. The heat sealing device for packaging machine according to claim 1, characterized in that: The adapter part (7) comprises an adapter bracket (71), a second connecting part (72) and a second guide rod (73); a second sliding hole is formed on the second connecting part (72); the second guide rod (73) is inserted into the second sliding hole; the second connecting part (72) is screwed onto the auxiliary shaft (8); the adapter bracket (71) is H-shaped; the adapter bracket (71) comprises ribs (711); a gap is formed between the ribs (711); the first connecting part (5) and the second connecting part (72) are inserted into the gap; fixing screw holes are symmetrically formed at both ends of the ribs (711); the first guide rod (6) and the second guide rod (73) are screwed into the fixing screw holes; the first guide rod (6) and the second guide rod (73) are parallel.