Thermoplastic device for side seam of cigarette packet

Abstract

The present application relates to the field of cigarette packet processing equipment, and discloses a thermoplastic device for cigarette packet side glue points, which comprises a base, a first heating element, a second heating element and a No. 7 wheel, the first heating element is installed on the base, a fixed sleeve is fixed on the base, the second heating element is installed on the fixed sleeve and located on the upside of the first heating element, a rotating sleeve is rotatably installed on the base, the rotating sleeve is sleeved outside the fixed sleeve, a driving element for driving the rotating sleeve to rotate is installed on the base, the No. 7 wheel is located between the first heating element and the second heating element, the No. 7 wheel comprises two disc supports and a plurality of modules fixed between the two disc supports, a clamping assembly for clamping the cigarette packet and an adjusting assembly for adjusting the clamping assembly to adapt to cigarette packets with different thicknesses are installed on the No. 7 wheel. The cigarette packet entering between the two irons along with the No. 7 wheel is clamped, the risk of the cigarette packet being thrown out is reduced, and the cigarette packet with different thicknesses can also be acted on.

Description

Technical Field

[0001] This invention relates to the field of tobacco packaging processing equipment technology, and in particular to a thermoplastic device for adhesive dots on the side of tobacco packaging. Background Technology

[0002] The GDX2 packaging unit is a device used for packaging cigarettes. It mainly consists of eight rollers: roller 1, roller 2, roller 3, roller 4, roller 5, roller 6, roller 7, and roller 8. Roller 1 is responsible for the transfer of cigarettes; roller 2 handles the packaging of the long and short sides and corners of the aluminum foil; roller 3 transports the cigarette packs and removes defective products; roller 4 packages the inner frame paper onto the aluminum foil; roller 5 packages the label paper; roller 6 transports the cigarette packs and removes defective products; roller 7 electrically dries the long sides of the cigarette packs; and roller 8 performs quality inspection.

[0003] The No. 7 wheel consists of two disc supports and thirty-six modules. These thirty-six modules are fixed between the two disc supports. There is a station for the cigarette pack to enter between each pair of adjacent modules. Soldering irons are installed on the upper and lower sides of the No. 7 wheel. When the cigarette pack is transferred from the No. 6 wheel to the No. 7 wheel, the cigarette pack can follow the No. 7 wheel to rotate between the two soldering irons. The two soldering irons can perform thermoplastic treatment on the glue dots on the upper and lower sides of the cigarette pack, and dry and flatten these glue dots.

[0004] The width of each station on the seventh wheel is usually greater than the width of the cigarette pack. This is designed to ensure that the cigarette pack can smoothly transition from the sixth wheel to the seventh wheel. However, since the width of the station is greater than the thickness of the cigarette pack, and each station is an open structure, the cigarette pack will be subjected to centrifugal force as it rotates with the seventh wheel, making it extremely easy to move or even be thrown off the seventh wheel. Furthermore, the width of the station on the seventh wheel is also fixed and is not suitable for cigarette packs of different thicknesses. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a thermoplastic device for adhesive dots on the side of cigarette packs, which solves the problem mentioned in the background art that the width of the station on the No. 7 wheel is greater than the thickness of the cigarette pack and the width of the station is fixed, which makes it easy for the cigarette pack to be thrown off the No. 7 wheel and is not suitable for cigarette packs of different thicknesses.

[0006] The present invention solves the above-mentioned technical problems through the following technical means:

[0007] A thermoplastic device for adhesive dots on the side of cigarette packs includes a base, a first heating element, a second heating element, and a No. 7 wheel. The first heating element is mounted on the base, and a fixed sleeve is fixed on the base. The second heating element is mounted on the fixed sleeve and located above the first heating element. A rotating sleeve is rotatably mounted on the base and sleeved outside the fixed sleeve. A driving component for rotating the rotating sleeve is mounted on the base. The No. 7 wheel is located between the first and second heating elements. The No. 7 wheel includes two disc supports and multiple modules fixed between the two disc supports. A rotating support is fixed on the disc support located on the bottom side. The rotating support is fixed to the top of the rotating sleeve. There is a station for cigarette packs to enter between every two adjacent modules. A clamping assembly for clamping cigarette packs and an adjusting assembly for adjusting the clamping assembly to accommodate cigarette packs of different thicknesses are mounted on the No. 7 wheel.

[0008] Furthermore, the clamping assembly includes a width conversion disc, multiple clamping plates, and multiple push rods. Each clamping plate and push rod corresponds to a module. A groove is formed on one side of each module facing one of the adjacent workstations. The clamping plate is slidably installed within the groove. A first return spring is installed between the clamping plate and the module. One side of the clamping plate can enter the adjacent workstation, and a first wedge block is fixed to the other side of the clamping plate. The push rod is slidably installed within the module. One end of the push rod has a second wedge block adapted to the abutment block, and the other end of the push rod extends through the module and into the inner ring of wheel number seven. The width conversion disc is located in the inner ring of wheel number seven and fixed to a fixed sleeve. The width conversion disc has a missing section and a complete section, both of which are arc-shaped. The distance from the missing section to the center of the width conversion disc is less than the distance from the complete section to the center of the width conversion disc. A transition section is provided between the missing section and the complete section. The width conversion disc is used to push the push rod.

[0009] Furthermore, the module has sliding grooves on both the upper and lower sides of the groove, and L-shaped plates are fixed at both the upper and lower ends of the clamping plate. One end of the L-shaped plate is slidably installed in the sliding groove on the same side as it. There are two first reset springs, which are installed in two sliding grooves respectively. One end of the first reset spring abuts against the L-shaped plate, and the other end of the first reset spring abuts against the inner wall of the sliding groove.

[0010] Furthermore, a stop plate is fixed on the push rod, and a second return spring is sleeved on the push rod. One end of the second return spring abuts against the stop plate, and the other end of the second return spring abuts against the module.

[0011] Furthermore, the adjustment assembly includes an annular connecting plate, an annular crown tooth plate, multiple adjusting rods, multiple sleeve rods, and multiple first gears. Each adjusting rod, sleeve rod, and first gear corresponds one-to-one with a module. The annular connecting plate is fixed between two disc supports and located in the inner ring of wheel number seven. The sleeve rod passes through the annular connecting plate and is rotatably mounted on the annular connecting plate. The first gear is fixed on one end of the sleeve rod located in the inner ring of the annular connecting plate. The annular crown tooth plate is rotatably mounted in the inner ring of the annular connecting plate, and the lower end of the annular crown tooth plate is provided with an annular rack, which meshes with all the first gears. One end of the adjusting rod is threadedly connected to the push rod, and the other end of the adjusting rod passes through the sleeve rod and abuts against the outer circumferential wall of the width conversion disc. The adjusting rod is slidably mounted inside the sleeve rod.

[0012] Furthermore, a first limiting slider is fixed on the outer side wall of the adjusting rod, and a first limiting groove is provided on the inner side wall of the sleeve rod, with the first limiting slider slidably installed in the first limiting groove.

[0013] Furthermore, a hinge ball seat is fixed to one end of the adjusting rod near the width conversion disk, and a hinge ball is installed inside the hinge ball seat. The side of the hinge ball away from the adjusting rod is located outside the hinge ball seat and abuts against the outer circumferential side wall of the width conversion disk.

[0014] Furthermore, the first heating element includes a first base, a first housing, and a first soldering iron. Both the first housing and the first soldering iron are fan-shaped structures. The first soldering iron is fixed inside the first housing. The upper side of the first housing is open, and the first soldering iron protrudes from the open end of the first housing. The first base is fixed to the bottom side of the first housing. Multiple support columns are fixed to the bottom side of the first base, and the bottom ends of the support columns are fixed to the base.

[0015] Furthermore, the second heating element includes a second base, a second housing, and a second soldering iron. Both the second housing and the second soldering iron are fan-shaped structures. The second soldering iron is fixed inside the second housing. The bottom side of the second housing is open, and the second soldering iron protrudes from the open end of the second housing. The second base is fixed to the top side of the second housing. A sliding sleeve is fixed to the bottom side of the second base. The sliding sleeve is slidably installed at the top of the fixed sleeve. A second limiting groove is provided on the outer side wall of the fixed sleeve. A second limiting slider is fixed on the inner side wall of the sliding sleeve. The second limiting slider is slidably installed in the second limiting groove. A cylinder is installed on the base. The cylinder is located inside the fixed sleeve, and the drive shaft of the cylinder is fixed to the second base.

[0016] Furthermore, the driving component includes a motor, a second gear, and a third gear. The motor is mounted on a base, the second gear is fixed on the drive shaft of the motor, and the third gear is fixed on a rotating sleeve. The third gear is meshed with the second gear.

[0017] The beneficial effects of this invention are:

[0018] 1. By setting up clamping components and other structures, the present invention enables the cigarette pack to be clamped by the clamping plate after it enters between the two soldering irons following the No. 7 wheel. This reduces the risk of the cigarette pack being deviated from its position or thrown out of the No. 7 wheel due to centrifugal force during the rotation of the No. 7 wheel, thereby improving the quality of cigarette pack processing.

[0019] 2. By setting up adjustment components and other structures, the present invention can adjust the displacement of the clamping plate entering the work station, so that the device can act on cigarette packs of different thicknesses and clamp the cigarette packs, thereby making the device more applicable and improving the quality of work. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an embodiment of a thermoplastic device for adhesive dots on the side of a cigarette pack according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of wheel number seven in this invention;

[0023] Figure 4 This is an exploded structural diagram of the first heating element in this invention;

[0024] Figure 5 This is an exploded structural diagram of the second heating element in this invention;

[0025] Figure 6 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0026] Figure 7 This is a schematic diagram illustrating the structure of the driving component in this invention;

[0027] Figure 8 This is a schematic diagram illustrating the structure of the clamping assembly in this invention;

[0028] Figure 9 This is a cross-sectional view of the internal structure of the module in this invention;

[0029] Figure 10 This is a cross-sectional view of the internal structure of the module in this invention;

[0030] Figure 11 This is a cross-sectional view used to illustrate the adjustment components in this invention;

[0031] Figure 12 This is the present invention. Figure 11 Enlarged view of point B in the middle;

[0032] Figure 13 This is the present invention. Figure 8 Enlarged view of point C in the middle;

[0033] Among them, 1. Base; 11. Fixed sleeve; 111. Second limiting slide groove; 12. Rotating sleeve; 14. Cylinder; 2. First heating element; 21. First base; 22. First housing; 23. First soldering iron; 24. Support column; 3. Second heating element; 31. Second base; 32. Second housing; 33. Second soldering iron; 34. Sliding sleeve; 341. Second limiting slider; 342. Buffer spring; 4. No. 7 wheel; 41. Disc bracket; 42. Module; 421. Groove; 422. Slide groove; 43. Rotating bracket; 44. Workstation; 5. Driving element; 51. Motor; 52. Second gear; 53. Third gear; 6. Gear; 6. Clamping assembly; 61. Width conversion disc; 611. Missing section; 612. Complete section; 613. Transition section; 62. Clamping plate; 621. L-shaped plate; 622. First wedge block; 63. Push rod; 631. Abutment plate; 632. Second wedge block; 64. First return spring; 65. Second return spring; 7. Adjustment assembly; 71. Annular connecting plate; 72. Annular crown tooth plate; 721. Annular rack; 722. Auxiliary rod; 73. Adjusting rod; 731. First limiting slider; 732. Hinge ball seat; 733. Hinge ball; 74. Sleeve rod; 741. First limiting groove; 75. First gear. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figure 1 and Figure 2 As shown, a thermoplastic device for adhesive dots on the side of a cigarette pack according to the present invention includes a base 1, a first heating element 2, a second heating element 3, and a No. 7 wheel 4. The first heating element 2 is mounted on the base 1. A first mounting groove is provided at the center of the base 1. A fixed sleeve 11 is fixed in the first mounting groove of the base 1. The upper end of the fixed sleeve 11 passes through the first heating element 2 and extends to the upper side of the first heating element 2. The second heating element 3 is mounted on the upper end of the fixed sleeve 11. A rotating sleeve 12 is rotatably mounted in the first mounting groove of the base 1, and the rotating sleeve 12 is sleeved on the outside of the fixed sleeve 11. A driving element 5 for driving the rotating sleeve 12 to rotate is mounted on the base 1. The upper end of the rotating sleeve 12 passes through the first heating element 2 and extends to the middle position between the first heating element 2 and the second heating element 3. The No. 7 wheel 4 is located between the first heating element 2 and the second heating element 3.

[0036] like Figure 2 and Figure 3 As shown, the No. 7 wheel 4 includes two disc supports 41 and thirty-six modules 42 fixed between the two disc supports 41. A rotating support 43 is fixed on the inner ring of the disc support 41 located on the bottom side. The rotating support 43 is fixed to the top of the rotating sleeve 12 by means of a flange connection. There is a station 44 for cigarette packs to enter between every two adjacent modules 42. The No. 7 wheel 4 is equipped with a clamping component 6 and an adjusting component 7. The clamping component 6 can clamp the cigarette packs entering the station 44, reducing the risk of the cigarette packs being thrown out of the No. 7 wheel 4 when it rotates with the No. 7 wheel 4. The adjusting component 7 can adjust the clamping component 6 so that the clamping component 6 can be used for cigarette packs of different thicknesses, thereby making the device more applicable and improving the working quality.

[0037] like Figure 2 and Figure 4 As shown, in this embodiment, the first heating element 2 includes a first base 21, a first housing 22, and a first soldering iron 23. Both the first housing 22 and the first soldering iron 23 are fan-shaped structures. This fan-shaped structure design gives the first heating element 2 a notch, which facilitates the transfer of the cigarette pack from the sixth wheel to the seventh wheel 4, and also facilitates the transfer of the cigarette pack from the seventh wheel 4 to the eighth wheel. A heating rod is provided inside the first soldering iron 23 to provide a heat source for the first soldering iron 23. The first soldering iron 23 is fixed inside the first housing 22. The upper side of the first housing 22 is open, and the upper end of the first soldering iron 23 protrudes from the open end of the first housing 22. The upper end of the first soldering iron 23 is also located on the lower side of the seventh wheel 4. The first base 21 is fixed to the bottom side of the first housing 22, and the first base 21 does not contact the rotating sleeve 12. Multiple support columns 24 are fixed to the bottom side of the first base 21, and the bottom ends of the support columns 24 are fixed to the base 1.

[0038] like Figure 2 and Figure 5As shown, in this embodiment, the second heating element 3 includes a second base 31, a second housing 32, and a second soldering iron 33. Both the second housing 32 and the second soldering iron 33 have a fan-shaped annular structure. A heating rod is also provided inside the second soldering iron 33 to provide a heat source for the second soldering iron 33. The second soldering iron 33 is fixed inside the second housing 32. The bottom side of the second housing 32 is open, and the lower end of the second soldering iron 33 protrudes from the open end of the second housing 32. The lower end of the second soldering iron 33 is located on the upper side of the No. 7 wheel 4. The second base 31 is fixed to the top side of the second housing 32. A sliding sleeve 34 is fixed to the bottom side of the second base 31. The sliding sleeve 34 has an annular plate structure and is slidably installed outside the top of the fixed sleeve 11. A cylinder 14 is installed in the base 1 and the first mounting groove. The cylinder 14 is also located in the first mounting groove. Inside the fixed sleeve 11, the drive shaft of the cylinder 14 is fixed to the second base 31. When the seventh wheel 4 drives the cigarette pack into the space between the first heating element 2 and the second heating element 3, the drive shaft of the cylinder 14 pulls the second heating element 3 downward, causing it to move downward so that the second soldering iron 33 makes full contact with the upper side of the cigarette pack. This structural design provides a better thermoplastic effect on the adhesive dots on the side of the cigarette pack. After the second soldering iron 33 contacts the upper side of the cigarette pack, the drive shaft of the cylinder 14 immediately pushes the second heating element 3 upward, resetting it. Then, after the seventh wheel 4 brings the next cigarette pack into the space between the first heating element 2 and the second heating element 3, the cylinder 14 drives the second heating element 3 to repeat the above action, thus improving the processing quality of the cigarette pack.

[0039] like Figure 6 As shown, a second limiting groove 111 is provided on the outer side wall of the fixed sleeve 11, and a second limiting slider 341 is fixed on the inner side wall of the sliding sleeve 34. The second limiting slider 341 is slidably installed in the second limiting groove 111. Through the mutual cooperation of the second limiting slider 341 and the second limiting groove 111, the sliding sleeve 34 can be restricted to slide only in the vertical direction relative to the fixed sleeve 11, thus avoiding the problem of the second heating element 3 rotating relative to the fixed sleeve 11.

[0040] like Figure 2 As shown, a buffer spring 342 is also provided inside the sliding sleeve 34. The upper end of the buffer spring 342 abuts against the bottom side of the second base 31, and the lower end of the buffer spring 342 abuts against the top of the fixed sleeve 11. Through the buffer spring 342, the rising and falling process of the second heating element 3 is made more stable.

[0041] like Figure 7As shown, in this embodiment, the driving component 5 includes a motor 51, a second gear 52, and a third gear 53. A second mounting groove is provided on the base 1 at a position off-center. The motor 51 is fixedly installed in the second mounting groove. The second gear 52 is fixed on the drive shaft of the motor 51. The third gear 53 is fixed on the rotating sleeve 12. The third gear 53 meshes with the second gear 52. The driving component 5 drives the rotating sleeve 12 to rotate, thereby driving the seventh wheel 4 to rotate. In this embodiment, the motor 51 is set to rotate intermittently. Each rotation of the motor 51 allows a cigarette pack to enter between the first heating element 2 and the second heating element 3. When the motor 51 is working, the cylinder 14 is not working, and when the cylinder 14 is working, the motor 51 is not working. This setting ensures that the rotation process of the seventh wheel 4 and the lifting process of the first heating element 2 are not synchronized, reducing the risk of damaging the cigarette pack.

[0042] like Figure 8 , Figure 9 and Figure 10 As shown, in this embodiment, the clamping assembly 6 includes a width conversion disc 61, multiple clamping plates 62, and multiple push rods 63. Each clamping plate 62 and push rod 63 corresponds one-to-one with a module 42, meaning one module 42 is paired with one clamping plate 62 and one push rod 63. A groove 421 is provided on one side of the module 42 facing one of the adjacent workstations 44. The clamping plate 62 is slidably installed in the groove 421. Slide grooves 422 are provided on both the upper and lower sides of the groove 421 within the module 42. L-shaped plates 621 are fixed to both the upper and lower ends of the clamping plate 62. The end of the L-shaped plate 621 away from the clamping plate 62 is slidably installed in the slide groove 422 on the same side. A first return spring 64 is installed in each of the two slide grooves 422. One end of the first return spring 64 abuts against the L-shaped plate 622. On plate 621, the other end of the first return spring 64 abuts against the inner wall of the slide groove 422. One side of the clamping plate 62 can enter the adjacent station 44, thereby clamping the cigarette pack in the station 44. The other side of the clamping plate 62 is fixed with a first wedge block 622. The push rod 63 is a rectangular rod and is slidably installed in the module 42. One end of the push rod 63 is provided with a second wedge block 632 that matches the abutment block. When the second wedge block 632 abuts against the first wedge block 622, the clamping plate 62 can be pushed out of the groove 421. When the second wedge block 632 abuts against the first wedge block 622, the clamping plate 62 can be reset under the elastic force of the first return spring 64. The other end of the push rod 63 passes through the module 42 and extends into the inner ring of the seventh wheel 4.

[0043] like Figure 2 and Figure 7As shown, the width conversion disk 61 is located in the inner ring of wheel 7 4 and fixed to the fixed sleeve 11. The width conversion disk 61 is provided with a missing segment 611 and a complete segment 612. Both the missing segment 611 and the complete segment 612 are arc-shaped segments, and the distance of the missing segment 611 from the center of the width conversion disk 61 is less than the distance of the complete segment 612 from the center of the width conversion disk 61. A transition segment 613 is provided between the missing segment 611 and the complete segment 612. The transition segment 613 is a smooth surface connecting the missing segment 611 and the complete segment 612. The width conversion disk 61 is used to push the push rod 63. The missing section 611 corresponds to the notch position of the first heating element 2 and the second heating element 3, and the complete section 612 corresponds to the non-notch position of the first heating element 2 and the second heating element 3. When the push rod 63 is located in the missing section 611, the clamping plate 62 is always located inside the module 42, and the cigarette pack can enter the station 44 normally. When the push rod 63 is switched from the missing section 611 to the complete section 612, the push rod 63 will move away from the center, thereby pushing the clamping plate 62 into the station 44 through the first wedge block 622 and the second wedge block 632, and clamping the cigarette pack in the station 44.

[0044] like Figure 10 As shown, in order to enable the push rod 63 to return to its original position smoothly after transitioning from the complete segment 612 to the missing segment 611, a backing plate 631 is fixed on the push rod 63, and a second return spring 65 is sleeved on the push rod 63. One end of the second return spring 65 abuts against the backing plate 631, and the other end of the second return spring 65 abuts against the module 42.

[0045] like Figure 11As shown, the adjustment assembly 7 includes an annular connecting plate 71, an annular crown tooth plate 72, multiple adjusting rods 73, multiple sleeve rods 74, and multiple first gears 75. Each adjusting rod 73, sleeve rod 74, and first gear 75 corresponds one-to-one with a module 42; that is, one module 42 is equipped with one adjusting rod 73, one sleeve rod 74, and one first gear 75. The annular connecting plate 71 is fixed between two disc supports 41 and located in the inner ring of the seventh wheel 4. The sleeve rod 74 is a circular hollow rod that passes through the annular connecting plate 71 and rotates. Mounted on the annular connecting plate 71, the first gear 75 is fixed to the sleeve rod 74 at one end of the inner ring of the annular connecting plate 71. The annular crown tooth plate 72 is rotatably mounted in the inner ring of the annular connecting plate 71, and the lower end of the annular crown tooth plate 72 is provided with an annular rack 721, which meshes with all the first gears 75. When the annular crown tooth plate 72 rotates, it can drive all the sleeve rods 74 to rotate through the annular rack 721 and all the first gears 75. The push rod 63 is threaded at one end outside the module 42. One end of the adjusting rod 73 is threaded into the threaded hole of the push rod 63, and the other end of the adjusting rod 73 passes through the sleeve rod 74 and abuts against the outer circumferential wall of the width conversion disc 61. The adjusting rod 73 is also slidably installed in the sleeve rod 74. When it is necessary to process tobacco packs of different thicknesses, the tobacco pack can be placed directly in the station 44 located between the first heating element 2 and the second heating element 3, and then the annular crown tooth plate 72 is rotated relative to the seventh wheel 4. The annular crown tooth plate 72 drives the annular rack 721 and all the first gears 75 to rotate. When the sleeve rod 74 rotates, it drives the adjusting rod 73 to rotate. Since the adjusting rod 73 is threadedly connected to the push rod 63, the rotation of the adjusting rod 73 can move the push rod 63, thereby adjusting the distance of the clamping plate 62 into the station 44. When the clamping plate 62 can just clamp the cigarette pack, the rotation of the annular crown tooth plate 72 stops. The station 44, which is not located between the first heating element 2 and the second heating element 3, can also automatically adapt to the thickness of the cigarette pack after entering the first heating element 2 and the second heating element 3, making the operation convenient.

[0046] like Figure 12 As shown, in order to enable the adjusting rod 73 to rotate smoothly when the sleeve rod 74 rotates, a first limiting slider 731 is fixed on the outer side wall of the adjusting rod 73, and a first limiting groove 741 is provided on the inner side wall of the sleeve rod 74. The first limiting slider 731 is slidably installed in the first limiting groove 741. With this setting, the sleeve rod 74 can smoothly drive the adjusting rod 73 to rotate.

[0047] like Figure 11As shown, in order to facilitate the rotation of the annular crown tooth plate 72 by the staff, the upper end of the annular crown tooth plate 72 is higher than the upper side of the No. 7 wheel 4, and multiple auxiliary rods 722 are integrally formed on the position of the annular crown tooth plate 72 above the No. 7 wheel 4. The multiple auxiliary rods 722 are distributed in a circular array on the annular crown tooth plate 72. The staff can rotate the annular crown tooth plate 72 through the auxiliary rods 722, which is convenient for operation.

[0048] like Figure 13 As shown, in this embodiment, because the end of the adjusting rod 73 near the width conversion disk 61 always abuts against the width conversion disk 61 and also rotates with the seventh wheel 4, there will be a large friction between the width conversion disk 61 and the adjusting rod 73. Over time, this will cause serious wear to the adjusting rod 73 or the width conversion disk 61. To solve this problem, a hinge ball seat 732 is fixed to the end of the adjusting rod 73 near the width conversion disk 61. A hinge ball 733 is installed inside the hinge ball seat 732. The side of the hinge ball 733 away from the adjusting rod 73 is located outside the hinge ball seat 732 and abuts against the outer circumferential side wall of the width conversion disk 61. By rolling the hinge ball 733 on the width conversion disk 61, the adjusting rod 73 is driven to directly rub against the width conversion disk 61, reducing the risk of workpiece damage.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A thermoplastic device for adhesive dots on the side of a cigarette pack, comprising a base, a first heating element, a second heating element, and a No. 7 wheel, characterized in that, The first heating element is mounted on a base, and a fixed sleeve is fixed on the base. The second heating element is mounted on the fixed sleeve and located above the first heating element. A rotating sleeve is rotatably mounted on the base and is sleeved outside the fixed sleeve. A driving component for driving the rotating sleeve to rotate is mounted on the base. The seventh wheel is located between the first heating element and the second heating element. The seventh wheel includes two disc supports and multiple modules fixed between the two disc supports. A rotating support is fixed on the disc support located on the bottom side. The rotating support is fixed to the top of the rotating sleeve. There is a station for the cigarette pack to enter between every two adjacent modules. A clamping component for clamping the cigarette pack and an adjusting component for adjusting the clamping component to accommodate cigarette packs of different thicknesses are mounted on the seventh wheel. The clamping assembly includes a width conversion disc, multiple clamping plates, and multiple push rods. Each clamping plate and push rod corresponds to a module. Each module has a groove on one side facing one of the adjacent workstations. The clamping plate is slidably installed in the groove. A first return spring is installed between the clamping plate and the module. One side of the clamping plate can enter the adjacent workstation, and a first wedge block is fixed on the other side of the clamping plate. The push rod is slidably installed in the module. One end of the push rod is provided with a second wedge block that matches the abutment block. The other end of the push rod passes through the module and extends into the inner ring of the seventh wheel. The width conversion disc is located in the inner ring of the seventh wheel and fixed on the fixed sleeve. The width conversion disc is provided with missing sections and complete sections. Both missing sections and complete sections are arc-shaped sections. The distance of the missing section from the center of the width conversion disc is less than the distance of the complete section from the center of the width conversion disc. A transition section is provided between the missing section and the complete section. The width conversion disc is used to push the push rod. The adjustment assembly includes an annular connecting plate, an annular crown tooth plate, multiple adjusting rods, multiple sleeve rods, and multiple first gears. Each adjusting rod, sleeve rod, and first gear corresponds to a module. The annular connecting plate is fixed between two disc supports and located in the inner ring of wheel number seven. The sleeve rod passes through the annular connecting plate and is rotatably mounted on the annular connecting plate. The first gear is fixed on one end of the sleeve rod located in the inner ring of the annular connecting plate. The annular crown tooth plate is rotatably mounted in the inner ring of the annular connecting plate, and the lower end of the annular crown tooth plate is provided with an annular rack, which meshes with all the first gears. One end of the adjusting rod is threadedly connected to the push rod, and the other end of the adjusting rod passes through the sleeve rod and abuts against the outer circumferential wall of the width conversion disc. The adjusting rod is slidably mounted inside the sleeve rod.

2. The thermoplastic device for adhesive dots on the side of a cigarette pack according to claim 1, characterized in that, The module has sliding grooves on both the upper and lower sides of the groove. The clamping plate has L-shaped plates fixed at both the upper and lower ends. One end of the L-shaped plate is slidably installed in the sliding groove on the same side. There are two first return springs. The two first return springs are installed in the two sliding grooves respectively. One end of the first return spring abuts against the L-shaped plate, and the other end of the first return spring abuts against the inner wall of the sliding groove.

3. The thermoplastic device for adhesive dots on the side of a cigarette pack according to claim 1, characterized in that, A stop plate is fixed on the push rod, and a second return spring is sleeved on the push rod. One end of the second return spring abuts against the stop plate, and the other end of the second return spring abuts against the module.

4. The thermoplastic device for adhesive dots on the side of a cigarette pack according to claim 1, characterized in that, A first limiting slider is fixed on the outer side wall of the adjusting rod, and a first limiting groove is provided on the inner side wall of the sleeve rod. The first limiting slider is slidably installed in the first limiting groove.

5. A thermoplastic device for adhesive dots on the side of a cigarette pack according to claim 1, characterized in that, A hinge ball seat is fixed to one end of the adjusting rod near the width conversion disk. A hinge ball is installed inside the hinge ball seat. The side of the hinge ball away from the adjusting rod is located outside the hinge ball seat and abuts against the outer circumferential side wall of the width conversion disk.

6. A thermoplastic device for adhesive dots on the side of a cigarette pack according to any one of claims 1-5, characterized in that, The first heating element includes a first base, a first housing, and a first soldering iron. Both the first housing and the first soldering iron are fan-shaped structures. The first soldering iron is fixed inside the first housing. The upper side of the first housing is open, and the first soldering iron protrudes from the open end of the first housing. The first base is fixed to the bottom side of the first housing. Multiple support columns are fixed to the bottom side of the first base, and the bottom ends of the support columns are fixed to the base.

7. A thermoplastic device for adhesive dots on the side of a cigarette pack according to claim 6, characterized in that, The second heating element includes a second base, a second housing, and a second soldering iron. Both the second housing and the second soldering iron have a fan-shaped structure. The second soldering iron is fixed inside the second housing. The bottom side of the second housing is open, and the second soldering iron protrudes from the open end of the second housing. The second base is fixed to the top side of the second housing. A sliding sleeve is fixed to the bottom side of the second base. The sliding sleeve is slidably installed on the top end of a fixed sleeve. A second limiting groove is provided on the outer side wall of the fixed sleeve. A second limiting slider is fixed on the inner side wall of the sliding sleeve. The second limiting slider is slidably installed in the second limiting groove. A cylinder is installed on the base. The cylinder is located inside the fixed sleeve, and the drive shaft of the cylinder is fixed to the second base.

8. A thermoplastic device for adhesive dots on the side of a cigarette pack according to claim 7, characterized in that, The driving component includes a motor, a second gear, and a third gear. The motor is mounted on a base, the second gear is fixed on the motor's drive shaft, and the third gear is fixed on a rotating sleeve. The third gear meshes with the second gear.

Images