Leveling mechanism for tobacco leaf curing

Abstract

The utility model belongs to the technical field of tobacco leaf processing, and discloses a leveling mechanism for tobacco leaf baking, which comprises a placing component for placing tobacco leaves and sucking and fixing the tobacco leaves under negative pressure, and a driving component for driving a bulldozer to move is mounted at the top of the placing component. The bulldozing assembly is mounted on the driving assembly and is used for outwards pushing and unfolding the folded parts of the tobacco leaves and reversely pushing and unfolding the tobacco leaves in a two-way manner; the bulldozing assembly comprises a first push plate and a second push plate which are symmetrically arranged on the two sides, the first push plate and the second push plate are the same in structure and are both obliquely-arranged arch-shaped plates, and the included angle between the first push plate and the horizontal plane and the included angle between the second push plate and the horizontal plane are 30 degrees. According to the leveling mechanism for tobacco leaf curing, due to the fact that the arch-shaped push plate is arranged, inward folding parts of tobacco leaves are pushed outwards, and the leveling effect on the tobacco leaves is improved; the leveling effect is further improved through the arrangement of two-way reverse pushing and unfolding; and through the arrangement of obliquely inserting the folding part, the leveling effect on the folding part is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco leaf processing, in particular to a leveling mechanism for tobacco leaf baking. Background Art

[0002] Tobacco is an annual herbaceous plant of the genus Nicotiana in the Solanaceae family. Its leaves are oblong-lanceolate, lanceolate, oblong or ovate, with a gradually pointed tip and a narrow base that is ear-shaped and semi-amplexicaulous. The petiole is not obvious or wing-shaped. The inflorescence is conical, the calyx is tubular or tubular-bell-shaped, the lobes are triangular-lanceolate, the corolla is funnel-shaped, light yellow, light green, red or pink, and the base is yellow. The capsule is oval or elliptical, almost the same length as the persistent calyx. The seeds are round or broadly oblong, brown, and the flowering and fruiting period is summer and autumn. The most important tobacco leaves usually need to be processed into shredded tobacco for people to smoke. This process requires the tobacco to be dehydrated and dried. Generally, the dehydration and drying is carried out by baking. When the tobacco is placed inside the baking oven, the uneven thickness will cause uneven heating of the tobacco leaves, and the baking effect is not ideal. Therefore, the placed tobacco leaves need to be leveled to achieve the effect of improving uniform heating.

[0003] By comparison, a Chinese patent with authorization announcement number CN220654738U discloses a leveling mechanism for tobacco leaf baking, including a baking box, a tobacco leaf placing plate for placing tobacco leaves is arranged inside the baking box, two inner walls of the baking box are located above the tobacco leaf placing plate and are fixedly connected with fixed plates, a cross beam is fixedly connected between the inner side walls of the two fixed plates in the horizontal direction, and a transmission screw is connected between the inner side walls of the two fixed plates below the cross beam in the horizontal direction, a stepping motor for driving the transmission screw to rotate is installed on the outer wall of the baking box, a movable seat is connected to the outside of the transmission screw, a lifting and lowering adjustment component is connected to the bottom of the movable seat, the bottom end of the lifting and lowering adjustment component is fixedly connected to a connecting frame, and a leveling plate is movably connected to the inner side of the bottom of the connecting frame.

[0004] The above patent adopts the arrangement of horizontally moving and flattening tobacco leaves, which can only flatten the wrinkled parts of tobacco leaves, but has a poor flattening effect on the inwardly folded parts of tobacco leaves. Therefore, a new device needs to be designed. Utility Model Content

[0005] The utility model aims to provide a tobacco leaf baking leveling mechanism to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tobacco leaf baking flattening mechanism, comprising a placing assembly for placing tobacco leaves and fixing the tobacco leaves by suction under negative pressure, a driving assembly for driving the flattening movement installed on the top of the placing assembly, and a flattening assembly installed on the driving assembly for pushing outward the folded part of the tobacco leaves and pushing in a two-way reverse direction;

[0008] The push-leveling assembly includes a first push plate and a second push plate symmetrically arranged on both sides. The first push plate and the second push plate have the same structure and are both inclined arched plates with an angle of thirty degrees with the horizontal plane. A fixed plate is arranged on the top of the first push plate and the second push plate, and an electric push rod is installed on the fixed plate.

[0009] Furthermore: the placement assembly includes a support plate, four legs are evenly arranged at the four corners below the support plate, a support rod is arranged above the legs, a negative pressure box is arranged above the support plate, an exhaust pipe is arranged in front of the negative pressure box, a negative pressure pump is installed on the exhaust pipe, and a placement plate is installed above the negative pressure box.

[0010] Furthermore: the driving assembly includes two linear guide rails symmetrically arranged front and back, a linear motor is installed on the linear guide rail, two fixed rods are symmetrically arranged on opposite sides of the two linear motors, and a movable plate is arranged between the two fixed rods.

[0011] Furthermore: the first push plate is made of PVC material, and two limit rods are symmetrically arranged on the front and rear sides of the electric push rod.

[0012] Furthermore: the placement plate is made of 304 stainless steel and has a porous structure.

[0013] Furthermore: the fixing rod is connected to the movable plate by welding.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. The arched push plate is set to push the inward folded part of the tobacco leaves outward, thus improving the flattening effect of the tobacco leaves;

[0016] 2. The leveling effect is further improved through the setting of double-pass reverse push;

[0017] 3. The leveling effect of the folded part is improved by the setting of oblique insertion into the folded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a tobacco leaf baking leveling mechanism described in the utility model;

[0019] Figure 2 It is an axonometric diagram of a placement component of a leveling mechanism for tobacco leaf baking described in the utility model;

[0020] Figure 3 This is an axonometric diagram of a driving assembly of a tobacco leaf baking leveling mechanism according to the utility model;

[0021] Figure 4 It is an axonometric view of a push-flattening assembly of a tobacco leaf baking flattening mechanism described in the utility model.

[0022] In the accompanying drawings, 101, support plate; 102, support leg; 103, support rod; 104, negative pressure box; 105, exhaust pipe; 106, negative pressure pump; 107, placement plate; 201, linear guide rail; 202, linear motor; 203, fixed rod; 204, movable plate; 301, first push plate; 302, second push plate; 303, fixed plate; 304, electric push rod; 305, limit rod. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 4 A leveling mechanism for tobacco leaf baking includes a placing component for placing tobacco leaves and fixing the tobacco leaves by negative pressure suction. A driving component for driving the pushing and leveling movement is installed on the top of the placing component. It also includes a pushing and leveling component installed on the driving component for pushing the folded part of the tobacco leaves outward and pushing them in a two-way reverse direction.

[0025] In this embodiment: the placement component includes a support plate 101, four legs 102 are evenly arranged at the four corners below the support plate 101, a support rod 103 is arranged above the legs 102, a negative pressure box 104 is arranged on the support plate 101, an exhaust pipe 105 is arranged in front of the negative pressure box 104, a negative pressure pump 106 is installed on the exhaust pipe 105, a placement plate 107 is installed on the negative pressure box 104, the placement plate 107 is made of 304 stainless steel and has a porous structure, the tobacco leaves are placed on the placement plate 107, the legs 102 support the negative pressure pump 106 to work through the support plate 101, the air in the negative pressure box 104 is extracted through the exhaust pipe 105, negative pressure is generated, the tobacco leaves are sucked on the porous placement plate 107, and it is fixed, the support rod 103 is used to support the driving component;

[0026] In this embodiment: the driving assembly includes two linear guide rails 201 symmetrically arranged front and back, a linear motor 202 is installed on the linear guide rails 201, two fixed rods 203 are symmetrically arranged on the opposite sides of the two linear motors 202, a moving plate 204 is arranged between the two fixed rods 203, the fixed rods 203 and the moving plate 204 are welded and connected, and the linear motor 202 drives the flattening assembly installed on the moving plate 204 to move along the linear guide rails 201 through the fixed rods 203 to flatten the tobacco leaves;

[0027] In this embodiment, the push-flattening assembly includes a first push plate 301 and a second push plate 302 symmetrically arranged on both sides. The first push plate 301 and the second push plate 302 have the same structure, both are inclined arched plates, and the angle with the horizontal plane is thirty degrees. A fixed plate 303 is arranged on the top of the first push plate 301 and the second push plate 302, and an electric push rod 304 is installed on the fixed plate 303. The first push plate 301 is made of PVC material, and two limit rods 305 are symmetrically arranged on the front and rear sides of the electric push rod 304. The moving plate 204 supports the electric push rod 304 above the first push plate 301 to extend through the fixed plate 303 to drive the first push plate 301 downward along the limit rod 305 to close to the surface of the tobacco leaf, and the linear motor 2 02 The flattening assembly installed on the movable plate 204 is driven by the fixed rod 203 to move along the linear guide rail 201 under the support of the support rod 103 to flatten the tobacco leaves. During this process, the arched first push plate 301 pushes the folded parts of the front and rear sides of the tobacco leaves outward. At the same time, the inclined setting makes it easier to insert the folded parts at the bottom of the first push plate 301 to push them. During the return journey, the electric push rod 304 above the first push plate 301 drives the first push plate 301 upward away from the tobacco leaves, and the electric push rod 304 above the second push plate 302 drives the second push plate 302 to fit closely to the tobacco leaves, flattening the tobacco leaves from the opposite direction, pushing the tobacco leaves folded to this side, and improving the flattening effect.

[0028] Working principle: Place tobacco leaves on the placement plate 107, and the legs 102 support the negative pressure pump 106 through the support plate 101 to work, and the air in the negative pressure box 104 is extracted through the exhaust pipe 105 to generate negative pressure, so that the tobacco leaves are sucked onto the porous placement plate 107; then the mobile plate 204 supports the electric push rod 304 above the first push plate 301 to extend through the fixed plate 303 to drive the first push plate 301 downward along the limit rod 305 to close to the surface of the tobacco leaves, and the linear motor 202 drives the push-flattening component installed on the mobile plate 204 through the fixed rod 203 to move along the linear guide rail 201 under the support of the support rod 103. The first push plate 301 is moved to flatten the tobacco leaves. During this process, the arched first push plate 301 pushes the folded parts of the front and rear sides of the tobacco leaves outward. At the same time, the inclined first push plate 301 makes it easier to insert the folded parts into the bottom of the first push plate 301 to push them out. When the moving plate 204 returns, the electric push rod 304 above the first push plate 301 drives the first push plate 301 upward away from the tobacco leaves, and the electric push rod 304 above the second push plate 302 drives the second push plate 302 to fit closely to the tobacco leaves, so as to flatten the tobacco leaves from the opposite direction, push the tobacco leaves folded to this side, and improve the flattening effect.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tobacco leaf baking leveling mechanism, comprising a placing component for placing tobacco leaves and fixing the tobacco leaves by suction under negative pressure, wherein a driving component for driving the pushing and leveling movement is installed on the top of the placing component, characterized in that: It also includes a push-flattening assembly installed on the driving assembly for pushing outward the folded portion of the tobacco leaf and pushing it in a two-way reverse direction; The push-flattening assembly comprises a first push plate (301) and a second push plate (302) symmetrically arranged on both sides. The first push plate (301) and the second push plate (302) have the same structure and are both inclined arched plates with an angle of thirty degrees with the horizontal plane. A fixed plate (303) is arranged on the top of the first push plate (301) and the second push plate (302), and an electric push rod (304) is installed on the fixed plate (303).

2. A tobacco leaf baking leveling mechanism according to claim 1, characterized in that: The placement assembly comprises a support plate (101), four legs (102) are evenly arranged at the four corners below the support plate (101), a support rod (103) is arranged above the legs (102), a negative pressure box (104) is arranged above the support plate (101), an exhaust pipe (105) is arranged in front of the negative pressure box (104), a negative pressure pump (106) is installed on the exhaust pipe (105), and a placement plate (107) is installed above the negative pressure box (104).

3. The tobacco leaf baking leveling mechanism according to claim 1, characterized in that: The driving assembly comprises two linear guide rails (201) symmetrically arranged front and rear, a linear motor (202) is mounted on the linear guide rails (201), two fixed rods (203) are symmetrically arranged on opposite sides of the two linear motors (202), and a movable plate (204) is arranged between the two fixed rods (203).

4. The tobacco leaf baking leveling mechanism according to claim 1, characterized in that: The first push plate (301) is made of PVC material, and two limit rods (305) are symmetrically arranged on the front and rear sides of the electric push rod (304).

5. The tobacco leaf baking leveling mechanism according to claim 2, characterized in that: The placement plate (107) is made of 304 stainless steel and has a porous structure.

6. A tobacco leaf baking leveling mechanism according to claim 3, characterized in that: The fixing rod (203) is connected to the moving plate (204) by welding.

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