Tobacco leaf guiding device of cigar wrapper forming machine

Abstract

The utility model discloses a tobacco leaf guiding device of a cigar wrapper forming machine, which is arranged on a protective plate in the rotating direction of a rotating disc and comprises a fixed support, a bottom guide strip, a mounting plate and an upper guide strip, and the bottom guide strip and the upper guide strip are respectively arranged on the outer side of the mounting plate and used for guiding tobacco leaves. The surfaces, in contact with tobacco leaves, of the bottom guide strip and the upper guide strip are arc surfaces; the fixing support is arranged on the lower side of the mounting plate and used for mounting and fixing the whole guide device so that the end, close to the rotary disc, of the bottom guide strip can be located under the rotary disc. And one side, close to the protective plate, of the upper guide strip is tightly attached to the protective plate, and the highest part of the upper guide strip is flush with the upper surface of the protective plate. According to the guiding device, tobacco leaves exceeding the range of the rotary table can be guided to the position over the left side protection plate from the position outside the range of the rotary table in a lossless mode, waste caused by scratching of the tobacco leaves is avoided, equipment clamping stagnation caused by the fact that the tobacco leaves enter gaps is eradicated, and the operation efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette equipment, in particular to a tobacco leaf guiding device of a wrapper forming machine. Background Art

[0002] Among all the equipment in cigar production enterprises, the TJ91A wrapper forming machine is an important one. Its working purpose is to cut a qualified tobacco leaf into a leaf with the same shape as the mold, which will be used as the wrapper. The cut and formed wrapper is arranged on a flat gauze in a certain order, and then the gauze is automatically rolled to form a gauze wrapper roll that can be used in the wrapper process of the MID-S wrapper machine.

[0003] The wrapper specifications produced by the TJ91A wrapper forming machine are: φ8.3mm*160mm wrapper. When producing this kind of wrapper, the length and width of the raw tobacco leaves are moderate: the average length is 38.1mm and the average width is 10.8mm. After the tobacco leaves are laid flat on the flattening station, the stems and leaf tips at both ends can remain on the turntable and will not appear outside the turntable.

[0004] Due to production needs, the TJ91A wrapper forming machine changed its production specifications to be suitable for φ10.8mm*178mm cigarettes. After the specification modification, the corresponding wrapper size becomes larger, and the size of the raw tobacco leaves used also increases: the average length needs to reach 83.6mm and the average width reaches .9mm. After this type of tobacco leaves are laid flat at the flattening station, due to the turntable diameter of φ750mm, the stems and leaf tips at both ends will remain on the turntable and will exceed the turntable range and appear outside the turntable. When the turntable rotates and the tobacco leaves are at the cutting station and the grabbing station, the ends of the tobacco leaves droop on the edge of the turntable. When transferring from the grabbing station to the clearing station, there is a certain gap between the left guard plate and the turntable. The gap range is statistically as follows: minimum 1.76mm, maximum 3.35mm. The drooping tobacco leaves will be caught by the turntable guard plate or enter the gap between the guard plate and the turntable. The caught tobacco leaves will be damaged and cannot be reused, which reduces the forming utilization rate of the tobacco leaves. The tobacco leaves entering the gap will gradually accumulate, and the accumulation will increase the equipment load, causing the equipment to get stuck and affect the equipment efficiency. Utility Model Content

[0005] The utility model aims to provide a tobacco leaf guiding device for a cigar wrapper forming machine, which is used to solve the technical problem in the prior art that tobacco leaves are too long and easily get stuck in the gap between a turntable and a guard plate.

[0006] The utility model solves the above problems through the following technical solutions:

[0007] A tobacco leaf guiding device for a cigar wrapper forming machine is arranged on a guard plate facing the direction of rotation of a turntable, comprising: a fixed bracket, a bottom guide bar, a mounting plate and an upper guide bar, wherein the bottom guide bar and the upper guide bar are respectively arranged on the outside of the mounting plate for guiding tobacco leaves, and the surfaces of the bottom guide bar and the upper guide bar in contact with the tobacco leaves are both arc surfaces; the fixed bracket is arranged on the lower side of the mounting plate, and is used to install and fix the entire guiding device so that the end of the bottom guide bar close to the turntable is located 10mm-20mm below the turntable, the end of the upper guide bar close to the turntable is in contact with the side of the turntable, the side close to the guard plate is tightly attached to the guard plate and the highest point is flush with the upper surface of the guard plate.

[0008] As a further improvement, the fixing bracket is "L"-shaped, with a first waist hole in the up and down directions for installing the guide device formed on the long side, and a first threaded hole for installing the mounting plate formed on the short side.

[0009] As a further improvement, the mounting plate is composed of a bottom guide bar mounting portion and an upper guide bar mounting portion which are perpendicular to each other, wherein the upper guide bar mounting portion in the horizontal direction is an obtuse triangle, and the longest side of the obtuse triangle coincides with the bottom guide bar mounting portion.

[0010] As a further improvement, the bottom guide bar mounting portion is used to install the bottom guide bar, and the bottom guide bar overlaps with the bottom guide bar mounting portion; the bottom guide bar has a connected semicircular strip and a conical surface, and the conical surface is located at one end of the semicircular strip close to the turntable.

[0011] As a further improvement, the conical surface is formed by taking the first vertex of the mounting plate as the vertex and the edge as the midline with a conical angle of 60°; and the conical surface is tangent to the semicircular strip.

[0012] As a further improvement, the upper guide bar mounting portion is used to mount the upper guide bar, the upper guide bar is a quarter-circular bar, and an arc cutting is performed near one end of the turntable.

[0013] As a further improvement, the obtuse triangle has a first vertex, a second vertex and a third vertex, the first vertex and the third vertex are respectively located at two ends of the bottom conductor bar, and the second vertex and the third vertex are respectively located at two ends of the upper conductor bar.

[0014] As a further improvement, the third vertex is flush with the outer edge of the guard plate.

[0015] As a further improvement, the upper guide bar mounting portion is formed with no less than two second waist holes for mounting the upper guide bar.

[0016] As a further improvement, the cigar wrapper forming machine is a TJ91A cigar wrapper forming machine.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] (1) During the operation of the equipment, the guide device of the utility model can guide tobacco leaves beyond the range of the turntable from outside the turntable to just above the left guard plate without damage, thereby avoiding the waste of tobacco leaves due to rubbing and improving the forming utilization rate of tobacco leaves; it also prevents the equipment from being stuck due to tobacco leaves entering the gaps, thereby improving the operating efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the cooperation between the tobacco leaf guide device and the turntable of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation of the tobacco leaf guiding device of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the bottom guide bar of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the tobacco leaf guiding device of the utility model;

[0023] Figure 5 This is a statistical chart of the monthly average tobacco leaf utilization rate of the TJ91A wrapper forming machine of the present invention.

[0024] Reference numerals:

[0025] 1. Fixed bracket; 11. First waist hole; 2. Bottom guide bar; 21. Semicircular strip; 22. Conical surface; 3. Mounting plate; 31. Bottom guide bar mounting part; 32. Upper guide bar mounting part; 33. First vertex; 34. Second vertex; 35. Third vertex; 4. Upper guide bar; 10. Turntable; 20. Guard plate; 30. Guide device. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example

[0028] Combined with Figure 1-4As shown, a tobacco leaf guiding device 30 of a TJ91A wrapper forming machine is arranged on a guard plate 20 to meet the rotation direction of a turntable 10, and comprises: a fixed bracket 1, a bottom guide bar 2, a mounting plate 3 and an upper guide bar 4. The bottom guide bar 2 and the upper guide bar 4 are respectively arranged on the outside of the mounting plate to guide the tobacco leaves, and the surfaces of the bottom guide bar and the upper guide bar in contact with the tobacco leaves are arc surfaces, which can ensure that when the tobacco leaves are guided during the rotation of the turntable, the contact surfaces with the guide device are all tangent contacts between a straight line and a circle, which can reduce the outer surface of the guide device. The shape has frictional force on the moving tobacco leaves; the fixed bracket is arranged on the lower side of the mounting plate, and is used to install and fix the entire guide device, so that the end of the bottom guide bar close to the turntable is located directly below the turntable, the end of the upper guide bar close to the turntable is in contact with the side of the turntable, the side close to the guard plate is close to the guard plate and the highest point is flush with the upper surface of the guard plate; it is convenient for the tobacco leaves hanging outside the turntable to be initially guided by the bottom guide bar, and then rise to the guard plate after secondary guidance by the upper guide bar as the turntable rotates, and prevent the hanging tobacco leaves from entering the gap between the turntable and the guard plate.

[0029] Among them, the fixed bracket 1 is an "L"-shaped bracket, the long side is in the vertical direction, and a first waist hole 11 is formed in the middle of the long side in the up and down direction, so that the fixed position of the fixed bracket can be adjusted up and down according to the installation size of the device, and the fixed bracket can be fixed to the fixed guard plate under the guard plate through an M5 bolt; the short side is in the horizontal direction, and a first M4 threaded hole is formed on the short side to realize the connection with the mounting plate 3.

[0030] The longitudinal section of the mounting plate 3 is "L" shaped, which is used to install the bottom guide bar 2 and the upper guide bar 4, and the bottom guide bar 2 and the upper guide bar 4 are respectively arranged on the outside of the mounting plate 3 in the horizontal direction and the vertical direction. The mounting plate adopts a plate that combines "Δ" and "L" shapes. The mounting plate is composed of a bottom guide bar mounting part and an upper guide bar mounting part that are perpendicular to each other. The vertical direction is the bottom guide bar mounting part 31, which is a plane similar to the side of the bottom guide bar and is used to install the bottom guide bar. The horizontal direction is the upper guide bar mounting part 32, which is an obtuse triangle, and the longest side of the obtuse triangle coincides with the bottom guide bar mounting part. The obtuse triangle has a first vertex, a second vertex and a third vertex, and the first vertex and the third vertex are respectively located at the two ends of the bottom guide bar, and the second vertex and the third vertex are respectively located at the two ends of the upper guide bar. And when installing, the first vertex 33 in the right front is located 15mm inside directly below the turntable, which is convenient for the first guidance of the tobacco leaves; of course, 15mm is the preferred value, and it can be located between 10mm-20mm directly below the turntable. The second vertex 34 at the right rear is in contact with the side of the turntable, so that there is no gap after the installation plate is installed. The upper guide bar edge close to the left guard plate fits tightly with the guard plate without any gap, which is convenient for the installation of the upper guide bar. Preferably, the third vertex 35 on the left is flush with the outer edge of the guard plate to avoid damage caused by the guide device. Two second waist holes are formed in the horizontal direction, which can realize the spacing adjustment of the upper guide bar to adapt to the differences of the equipment after installation, so as to ensure that the second vertex is in contact with the side of the turntable.

[0031] The bottom guide strip 2 has a semicircular strip 21 of R6mm. The bottom guide strip is installed on the vertical edge of the mounting plate and coincides with the vertical edge. The design of the semicircular strip can ensure that when the tobacco leaves are guided during the rotation of the turntable, the contact surface with the semicircular strip is a tangential contact between a straight line and a circle, which will reduce the friction of the bottom guide strip shape on the moving tobacco leaves. Furthermore, the right end of the strip is processed again, with the right end point of the edge of the mounting plate, i.e., the first vertex, as the vertex, the edge as the midline, and a conical surface 22 with a cone angle of 60°. The conical surface 22 is tangent to the semicircular strip 21, which can ensure that the drooping end of the tobacco leaves is effectively guided and will not collide with the bottom plate under the left guard plate.

[0032] Furthermore, the bottom guide bar is provided with no less than two M4mm second threaded holes for connecting with the mounting plate. The height of the bottom guide bar and the bottom guide bar mounting portion of the mounting plate are both 12mm.

[0033] The upper guide bar 4 adopts a quarter-circle bar of R8mm. The right end of the upper guide bar adopts an arc cut of R375mm. Through the adjustment of the second waist hole on the mounting plate, the upper guide bar can be close to the turntable with the minimum spacing. The left end of the upper guide bar is close to the equipment body to achieve seamless installation. The thickness of the left side guard plate of the turntable is 12mm, and the thickness of the upper guide bar mounting part of the upper guide bar plus the mounting plate is 11mm. Among them, the thickness of the mounting plate is 3mm, and the upper guide bar is installed on the mounting plate and close to the edge of the guard plate. This can achieve the tangential contact of the straight line and the circle when the tobacco leaves are guided for the second time by the upper guide bar, reducing the friction of the guide bar shape on the moving tobacco leaves, and achieving a smooth transition from the guide bar to the guard plate.

[0034] Furthermore, the upper guide bars are respectively provided with no less than two M4mm third threaded holes for connection with the mounting plate.

[0035] After installation, the bottom guide bar of the guide device can guide the long and thin tobacco leaves hanging below the edge of the turntable vertically upward from the bottom; the upper guide bar can smoothly transfer the tobacco leaves outside the left guard plate to the top of the guard plate when the turntable rotates. The installation of the guide device prevents the thin and thin tobacco leaves from entering the gap between the turntable and the left guard plate, and also prevents the right-angle edge of the left guard plate from damaging the tobacco leaves, successfully realizing the transition of tobacco leaves and greatly reducing the waste of tobacco leaves.

[0036] The guide device is installed on the TJ91A wrapper forming machine. The monthly average tobacco leaf utilization rate statistics of the TJ91A wrapper forming machine refer to the attached Figure 5 As shown in the figure, tobacco utilization rate (%) = (weight of tobacco leaves (kg) - weight of raw residue (kg)) ÷ weight of tobacco leaves (kg) * 100%); after the guide device was put into use, the average tobacco utilization rate of the TJ91A wrapper forming machine when using large-sized tobacco leaves increased from the initial 28.51% to 35.43%. Based on the monthly production of 2,635 kg of raw tobacco leaves, 182.34 kg of raw tobacco leaves can be saved.

[0037] From this example, it can be seen that by using the guide device of the utility model, during the operation of the equipment, tobacco leaves beyond the range of the turntable can be guided from the outside of the turntable range to the top of the left guard plate without damage during the process from the grabbing station to the clearing station, thus avoiding the waste of tobacco leaves due to rubbing and hanging, and improving the forming utilization rate of tobacco leaves. It also prevents the equipment from being stuck due to tobacco leaves entering the gap, thus improving the operation efficiency of the equipment.

[0038] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A tobacco leaf guiding device for a wrapper forming machine, arranged on a guard plate facing the direction of rotation of a turntable, characterized in that: include: A fixed bracket, a bottom guide strip, a mounting plate and an upper guide strip, wherein the bottom guide strip and the upper guide strip are respectively arranged on the outside of the mounting plate for guiding the tobacco leaves, and the surfaces of the bottom guide strip and the upper guide strip in contact with the tobacco leaves are both arc surfaces; the fixed bracket is arranged on the lower side of the mounting plate, and is used to install and fix the entire guide device so that the end of the bottom guide strip close to the turntable is located 10mm-20mm below the turntable; the end of the upper guide strip close to the turntable is in contact with the side of the turntable, the side close to the guard plate is close to the guard plate and the highest point is flush with the upper surface of the guard plate.

2. The tobacco leaf guiding device of the wrapper forming machine according to claim 1, characterized in that: The fixing bracket is "L"-shaped, with a first waist hole in the up-down direction for installing the guide device formed on the long side, and a first threaded hole for installing the mounting plate formed on the short side.

3. The tobacco leaf guiding device of the wrapper forming machine according to claim 1, characterized in that: The mounting plate is composed of a bottom guide bar mounting portion and an upper guide bar mounting portion which are perpendicular to each other, wherein the upper guide bar mounting portion in the horizontal direction is an obtuse triangle, and the longest side of the obtuse triangle coincides with the bottom guide bar mounting portion.

4. The tobacco leaf guiding device of the wrapper forming machine according to claim 3, characterized in that: The bottom guide bar installation portion is used to install the bottom guide bar, and the bottom guide bar overlaps with the bottom guide bar installation portion; the bottom guide bar has a semicircular strip and a conical surface connected to each other, and the conical surface is located at one end of the semicircular strip close to the turntable.

5. The tobacco leaf guiding device of the wrapper forming machine according to claim 4, characterized in that: The conical surface is formed by taking the first vertex of the mounting plate as the vertex and the edge as the midline, with a conical angle of 60°; and the conical surface is tangent to the semicircular strip.

6. The tobacco leaf guiding device of the wrapper forming machine according to claim 3, characterized in that: The upper guide bar installation portion is used to install the upper guide bar, and the upper guide bar adopts a quarter-circular bar and performs arc cutting close to one end of the turntable.

7. The tobacco leaf guiding device of the wrapper forming machine according to claim 3, characterized in that: The obtuse triangle has a first vertex, a second vertex and a third vertex, the first vertex and the third vertex are respectively located at two ends of the bottom conductor bar, and the second vertex and the third vertex are respectively located at two ends of the upper conductor bar.

8. The tobacco leaf guiding device of the wrapper forming machine according to claim 7, characterized in that: The third vertex is flush with the outer edge of the guard plate.

9. The tobacco leaf guiding device of the wrapper forming machine according to claim 3, characterized in that: The upper guide bar installation portion is formed with no less than two second waist holes for installing the upper guide bar.

10. A tobacco leaf guiding device for a wrapper forming machine according to any one of claims 1 to 9, characterized in that: The cigar wrapper forming machine is a TJ91A cigar wrapper forming machine.

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