A semi-automatic spring pre-tightening cigarette rod loading operation table

Abstract

The present invention discloses a semi-automatic spring preloaded cigarette rod loading operation table, and relates to the technical field of cigarette loading equipment. The present invention comprises a bracket and a spring preloaded cigarette rod, a cigarette rod fixing frame is installed on the top of the table panel and close to the baffle, a positioning device capable of plugging the spring preloaded cigarette rod is arranged on the top of the cigarette rod fixing frame, an electric telescopic rod is installed inside the bracket, a lifting plate is installed on the telescopic end of the electric telescopic rod, a top column is linearly arranged on the top of the lifting plate, the top column corresponds to the spring on the spring preloaded cigarette rod, a spring bayonet is provided on the top of the top column, a threaded hole is provided inside the lifting plate, and a top column height adjustment bolt is connected to the inside thread of the threaded hole. The present invention controls the extension and retraction of the electric telescopic rod by controlling the control switch, the electric telescopic rod drives the lifting plate to rise and fall, the lifting plate drives the top column to rise and fall, and the top column automatically props up the spring on the spring preloaded cigarette rod, no manual operation is required, and the cigarette loading efficiency is high and the degree of automation is high.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco baking and hanging equipment, and in particular to a semi-automatic spring pre-tightened tobacco rod loading operating table. Background Art

[0002] Tobacco leaf baking is an important processing link after the tobacco leaves are mature and picked. The baking quality of tobacco leaves has a great impact on the income of tobacco farmers. To ensure the baking effect, the most reliable baking method is still hanging baking, that is, the tobacco leaves are fixed on the hanging rods with the stems facing upwards, and then the hanging rods are placed in the baking room for baking. The earliest hanging baking method was to tie the tobacco leaves to bamboo poles for hanging baking, but with the reduction of labor costs and left-behind people in rural areas, the bundling and hanging baking method can no longer meet the requirements. For this reason, tobacco companies have launched many types of cigarette clips to improve the efficiency of hanging tobacco.

[0003] The spring preloaded tobacco rod is a new type of tobacco hanging device that is gradually being promoted and used. The patent name of its structure is: a tobacco clip for flue-cured tobacco that can reduce tobacco leaf damage. The utility model patent with patent number 202122513353X is disclosed. When using the spring preloaded tobacco rod with this structure, it is necessary to use an auxiliary hook to pull up the springs on the tobacco rod one by one and place them on the top column of the tobacco rod fixing frame. This is not only labor-intensive, but also easy to hurt the hands, and at the same time affects the efficiency of loading tobacco. For this reason, our company applied for a utility model patent named a spring opening workbench for spring preloaded tobacco rods on March 9, 2023, with patent number 202320435665X. This patent also uses a workbench to complete the spring opening work of the spring preloaded tobacco rod at one time, but it has the following problems: first, the structure is too precise, and it is necessary to entrust a mechanical processing factory to customize the parts, which is expensive. Second, the use of manual pulling for continuous work will cause arm weakness. Third, no safety protection mechanism is set, and fingers are easily pinched in case of misoperation. Summary of the invention

[0004] The purpose of the present invention is to provide a semi-automatic spring pre-tightened cigarette rod loading operation table which is more labor-saving, safe and structurally stable, and can overcome the shortcomings of the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A semi-automatic spring preloaded cigarette rod loading operating table is an auxiliary device for the use of spring preloaded cigarette rods, comprising a bracket, a horizontally arranged table panel, a cigarette rod fixing frame and a vertically arranged baffle are installed on the top of the bracket, the cigarette rod fixing frame is located between the table panel and the baffle, a positioning device for the spring preloaded cigarette rod is provided on the cigarette rod fixing frame, an electric telescopic rod is installed on the bracket, a lifting plate is installed on the telescopic end of the electric telescopic rod, top columns with the same number as the springs on the spring preloaded cigarette rod are arranged at intervals on the top of the lifting plate, a top column insertion hole is opened on the cigarette rod fixing frame, the upwardly moving top column passes through the top column insertion hole and then rises to push open the spring on the spring preloaded cigarette rod, a control switch is installed on the table panel or the baffle, and the control switch can control the up and down movement of the electric telescopic rod.

[0007] The aforementioned semi-automatic spring pre-tightening type cigarette rod loading operation table is provided with a spring bayonet at the top of the top column.

[0008] The aforementioned semi-automatic spring pre-tightening cigarette rod loading operation table is provided with a threaded hole in the vertical direction of the lifting plate, and a top column lifting height adjustment bolt cooperating therewith is provided on the threaded hole.

[0009] The aforementioned semi-automatic spring preloaded cigarette rod loading operating table is provided with a vertical pole next to the top column insertion hole of the cigarette rod fixing frame, a protective claw is hinged at the end of the vertical pole, a torsion spring that can rotate the protective claw upward is provided at the hinged part between the protective claw and the vertical pole, and a limiting block is provided at the upper end of the top column, and the limiting block is located above the protective claw.

[0010] The aforementioned semi-automatic spring preloaded cigarette rod loading operation table is that the total elastic force of the torsion spring is 50-100% of the total elastic force of the springs on the spring preloaded cigarette rod.

[0011] The aforementioned semi-automatic spring preloaded cigarette rod loading operation table is provided with a cut-angle section on the contact surface between the protective claw and the limit block for facilitating downward pressing and rotation.

[0012] The aforementioned semi-automatic spring preloaded cigarette rod loading operating table is that after the electric telescopic rod retracts downward, the upper end surface of the top column is lower than the lower end surface of the spring on the spring preloaded cigarette rod that is to be contacted, and during the upward extension and retraction process of the electric telescopic rod, a spring wire on the spring preloaded cigarette rod is located in the spring bayonet and is gradually pulled open, and the protective claw rotates upward, and the angled section of the protective claw is always in contact with the lower end surface of the limit block.

[0013] The aforementioned semi-automatic spring pre-tightening cigarette rod loading operation table is provided with two guide rods on the bracket, and two sliding holes are provided on the lifting plate, and the lifting plate moves along the guide rods through the sliding holes.

[0014] The aforementioned semi-automatic spring preloaded cigarette rod loading operation table is characterized in that the positioning device comprises an L-shaped pull tab welded on the cigarette rod fixing frame and an end positioning column located at one end of the cigarette rod fixing frame.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention controls the extension and retraction of the electric telescopic rod through a control switch, the electric telescopic rod drives the lifting plate to rise and fall, the lifting plate drives the top column to rise and fall, the top column automatically props up the spring on the spring preloaded tobacco rod and makes the spring fall back after the tobacco leaves are placed. Compared with the existing workbench, it is more labor-saving and safer, and can improve the efficiency of cigarette loading, with a high degree of automation.

[0017] 2. The present invention can control the lifting height of the lifting plate by arranging a top column lifting height adjustment bolt on the lifting plate and adjusting the distance between the top end of the top column lifting height adjustment bolt and the top end of the lifting plate, thereby adapting to the adjustment of different opening springs and cigarette clamping amounts.

[0018] 3. The present invention arranges a vertical pole beside the insertion hole of the top column of the cigarette rod fixing frame, and a protective claw is hinged at the end of the vertical pole. A torsion spring that can rotate the protective claw upward is provided at the hinged part of the protective claw and the vertical pole, and a limit block that limits its flipping is provided at the upper end of the top column. When the top column moves upward and the spring on the spring-preloaded cigarette rod is supported, the spring force gradually increases, and the protective claw also rotates upward and is always in contact with the limit block at the end of the top column (the torsion spring force gradually decreases). When the equipment fails or is misoperated, such as when the electric telescopic rod bracket breaks or is accidentally hit, the spring will press down on the top column, and the limit block on the top column will drive the protective claw downward. In this process, the spring force decreases and the torsion spring force gradually increases, and then the protective claw will gradually give greater supporting force to the top column. In this way, when the operator's hand is in a dangerous position, the operator's injury can be avoided or reduced to a great extent, making the whole set of equipment safer.

[0019] 4. The present invention can adjust the total elastic force of the torsion spring by setting the number of top columns and protective claws, thereby saving more effort when pulling the spring on the spring preloaded cigarette rod, thereby reducing the power of the electric telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the positive axis side of the present invention;

[0021] Figure 2 It is a schematic diagram of the rear axle side of the present invention;

[0022] Figure 3 The present invention Figure 1 The enlarged schematic diagram of part A in the middle;

[0023] Figure 4 It is a schematic diagram of the cigarette rod fixing frame of the present invention;

[0024] Figure 5 is a schematic cross-sectional view of the protective claw of the present invention;

[0025] Figure 6 It is a schematic diagram of the spring preloaded cigarette rod of the present invention.

[0026] Figure numerals: 1. bracket; 2. table panel; 3. cigarette rod fixing bracket; 4. baffle; 5. control switch; 6. electric telescopic rod; 7. lifting plate; 8. top column; 9. spring bayonet; 10. limit block; 11. bracket; 12. protective claw; 13. torsion spring; 14. sliding hole; 15. guide rod; 16. top column lifting height adjustment bolt; 17. L-shaped pull tab; 18. spring preloaded cigarette rod, 19. positioning column. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Example 1: Figure 1-Figure 6 As shown, the semi-automatic spring preloaded cigarette rod loading table is an auxiliary device for the spring preloaded cigarette rod 18, and its main body is a bracket 1. A horizontally arranged table panel 2, a cigarette rod fixing frame 3 and a vertically arranged baffle 4 are installed on the top of the bracket 1. The cigarette rod fixing frame 3 is located between the table panel 2 and the baffle 4. A positioning device for fixing the spring preloaded cigarette rod 18 is arranged on the cigarette rod fixing frame 3. The positioning device includes an L-shaped pull tab 17 welded on the cigarette rod fixing frame 3 and an end positioning column 19 located at one end of the cigarette rod fixing frame 3. The L-shaped pull tab 17 is two pieces, which limit the up and down movement of the spring preloaded cigarette rod 18. The positioning column 19 is used to limit the end position of the spring preloaded cigarette rod 18. When placing the spring preloaded cigarette rod 18, first push it horizontally into the L-shaped pull tab, and then slide it toward the positioning column side so that one end of the spring preloaded cigarette rod 18 is close to the positioning column 19 to achieve positioning.

[0029] An electric telescopic rod 6 is installed on the bracket 1, and a lifting plate 7 is installed on the telescopic end of the electric telescopic rod 6. The top of the lifting plate 7 is spaced apart with top posts 8 having the same number as the springs on the spring preloaded cigarette rod 18. A top post insertion hole is provided on the cigarette rod fixing frame 3. The top post 8 moving upward can push open the spring on the spring preloaded cigarette rod 18 when it passes through the top post insertion hole and then rises. A control switch 5 is installed on the table panel 2 or the baffle 4. The control switch 5 can control the up and down movement of the electric telescopic rod 6 to separate and close the springs on the spring preloaded cigarette rod 18. In order to improve the stability of the spring on the top post contact surface, a spring bayonet 9 is provided on the top of the top post 8. In order to ensure the movement stability of the electric telescopic rod 6, two guide rods 15 are provided on the bracket 1, and two sliding holes 14 are provided on the lifting plate 7. The lifting plate 7 moves along the guide rod 15 through the sliding holes 14.

[0030] In this way, after the spring-preloaded tobacco rod 18 is placed in the correct position of the tobacco rod fixing frame 3, the control switch 5 is pressed to start the electric telescopic rod 6, and the electric telescopic rod 6 drives the lifting plate 7 to move upward, and then the top column 8 on the lifting plate 7 contacts the spring of the spring-preloaded tobacco rod 18, and lifts the spring to make it away from the tobacco rod. After lifting to a certain height, the operator places tobacco leaves on the tobacco rod, and the petioles of the tobacco leaves contact with the baffle 4. After the tobacco leaves are placed, the clamping rod is inserted into the curved hole at the lifted end of the spring, and the electric telescopic rod 6 is controlled in the reverse direction. The electric telescopic rod 6 drives the lifting plate 7 to move downward, and the top column moves downward with the lifting plate 7 until the spring uses natural elastic force to drive the clamping rod to clamp the tobacco leaves between the tobacco rod and the clamping rod. The next spring-preloaded tobacco rod 18 is taken out and replaced, and the work can be repeated again.

[0031] Embodiment 2, as Figure 1-Figure 6 As shown, on the basis of Example 1, a device for adjusting the height of the top column 8 is added. Specifically, two threaded holes are opened in the vertical direction of the lifting plate 7, and bolts that can cooperate with the threaded holes, namely, the top column height adjustment bolts 16, are arranged on the threaded holes. Figure 4 As shown, when the operator believes that the amount of cigarettes in the spring preloaded cigarette rod 18 needs to be increased, the top column can be rotated to raise the height adjustment bolt 16 to move it downward. Conversely, if the amount of cigarettes needs to be reduced, the top column can be rotated to raise the height adjustment bolt 16 to move it upward.

[0032] Embodiment 3, as Figure 1-Figure 6As shown, a safety protection device and an energy-saving device are added on the basis of Example 1 or 2, in which a vertical pole 11 is provided next to the top column insertion hole of the cigarette rod fixing frame 3, a protective claw 12 is hinged at the end of the vertical pole 11, and a torsion spring 13 is provided at the hinged part of the protective claw 12 and the vertical pole 11, which can rotate the protective claw 12 upward, a limiting block 10 is provided at the upper end of the top column 8, and the limiting block 10 is located above the protective claw 12, and a cutting angle section is provided on the contact surface between the protective claw 12 and the limiting block 10 for facilitating downward pressing and rotation. The arrangement of the vertical pole 11, the protective claw 12 and the limit block 10 must meet the following conditions, that is, after the electric telescopic rod 6 retracts downward, the upper end surface of the top column 8 is lower than the lower end surface of the spring on the spring preloaded cigarette rod 18 to be in contact, and during the upward extension of the electric telescopic rod 6, a spring wire on the spring preloaded cigarette rod 18 is located in the spring bayonet 9 and is gradually pulled open, and the protective claw 12 rotates upward, and the angled section of the protective claw 12 is always in contact with the lower end surface of the limit block 10. The number of the matching vertical poles 11, protective claws 12 and torsion springs 13 is determined according to the specific situation, based on the principle that the sum of the elastic forces of the torsion springs 3 is 50-100% of the sum of the elastic forces of the springs on the spring preloaded cigarette rod 18.

[0033] The addition of the rod 11, the protective claw 12 and the limit block 10 does not change the specific use of the original spring preloaded cigarette rod 18. The spring preloaded cigarette rod 18 is still pushed into the L-shaped pull tab 17 first, but the tail of the spring and the top column 8 are staggered when pushing in. After the pushing is completed, it moves to the right so that the end of the spring preloaded cigarette rod 18 is in close contact with the positioning column 19. After the spring preloaded cigarette rod 18 is placed in the correct position of the cigarette rod fixing frame 3, the control switch 5 is pressed to start the electric telescopic rod 6. The electric telescopic rod 6 drives the lifting plate 7 to move upward, and then the top column 8 on the lifting plate 7 contacts the spring of the spring preloaded cigarette rod 18 and lifts the spring away from the cigarette rod. In the process of the top column 8 driving the spring upward, a spring wire on the spring preloaded cigarette rod 18 is located in the spring bayonet 9 and is gradually pulled open, and the protective claw 12 rotates upward. The cut corner section of the protective claw 12 is always in contact with the lower end face of the limit block 10, and when it releases the torsion spring elastic force, it can resist After part of the elastic force of the spring is eliminated and the jacking is lifted to a certain height, the operator places tobacco leaves on the tobacco rod, and the petioles of the tobacco leaves are in contact with the baffle 4. After the tobacco leaves are placed, the clamping rod is inserted into the curved hole at the top end of the spring, and the electric telescopic rod 6 is controlled in the reverse direction. The electric telescopic rod 6 drives the lifting plate 7 to move downward, and the top column 8 moves downward with the lifting plate 7. The limit block 10 on the top 8 presses down the protective claw 12, and the protective claw 12 increases the elastic force of the torsion spring 13 until the spring uses the natural elastic force to drive the clamping rod to clamp the tobacco leaves between the tobacco rod and the clamping rod. The next spring preloaded tobacco rod 18 is taken out and replaced, and the work can be repeated again.

[0034] When the equipment fails or is misoperated, such as when the mounting bracket of the electric telescopic rod 6 breaks or the control switch 5 is accidentally touched, the spring will press down the top column 8, and the limit block 10 on the top column 8 drives the protective claw 12 downward. During this process, the spring elastic force decreases and the elastic force of the torsion spring 13 gradually increases, and then the protective claw 12 will gradually give greater support to the top column 8, so that when the operator's hand is in a dangerous position, the operator's injury can be avoided or reduced to a great extent, making the whole set of equipment safer. At the same time, in the early stage of the top column 8 rising to push the spring, the torsion spring 13 has the largest torsion force, so that the electric telescopic rod 6 does not need to provide a large driving force at the initial start, which can improve the stability of the device.

[0035] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A semi-automatic spring preloaded cigarette rod loading operation table, which is an auxiliary device for using a spring preloaded cigarette rod (18), comprising a bracket (1), a horizontally arranged table panel (2), a cigarette rod fixing frame (3) and a vertically arranged baffle (4) are installed on the top of the bracket (1), the cigarette rod fixing frame (3) is located between the table panel (2) and the baffle (4), and a positioning device for the spring preloaded cigarette rod (18) is provided on the cigarette rod fixing frame (3), characterized in that: An electric telescopic rod (6) is mounted on the bracket (1), and a lifting plate (7) is mounted on the telescopic end of the electric telescopic rod (6). Top posts (8) having the same number as the springs on the spring preloaded tobacco rod (18) are arranged at intervals on the top of the lifting plate (7). A top post insertion hole is provided on the tobacco rod fixing frame (3). When the top post (8) moves upward and passes through the top post insertion hole and then rises again, it can push open the spring on the spring preloaded tobacco rod (18). A control switch (5) is mounted on the table panel (2) or the baffle (4). The control switch (5) can control the upward and downward movement of the electric telescopic rod (6). A spring bayonet (9) is provided at the top of the top column (8); a threaded hole is provided in the vertical direction of the lifting plate (7), and a top column lifting height adjustment bolt (16) matching with the threaded hole is provided on the threaded hole; a vertical rod (11) is provided next to the top column insertion hole of the cigarette rod fixing frame (3), a protective claw (12) is hinged at the end of the vertical rod (11), a torsion spring (13) that can rotate the protective claw (12) upward is provided at the hinged portion between the protective claw (12) and the vertical rod (11), and a limit block (10) is provided at the upper end of the top column (8), and the limit block (10) is located above the protective claw (12).

2. The semi-automatic spring preloaded cigarette rod loading operation table according to claim 1 is characterized in that: The total elastic force of the torsion spring (13) is 50-100% of the total elastic force of the spring on the spring preloaded cigarette rod (18).

3. The semi-automatic spring preloaded cigarette rod loading operation table according to claim 2 is characterized in that: A cut-off section is provided on the contact surface between the protective pusher claw (12) and the limit block (10) to facilitate pressing down and rotating.

4. The semi-automatic spring preloaded cigarette rod loading operation table according to claim 3 is characterized in that: After the electric telescopic rod (6) retracts downward, the upper end surface of the top column (8) is lower than the lower end surface of the spring on the spring preloaded cigarette rod (18) that is to be in contact. During the upward extension and retraction process of the electric telescopic rod (6), a spring wire on the spring preloaded cigarette rod (18) is located in the spring bayonet (9) and is gradually pulled open, and the protective claw (12) rotates upward, and the angled section of the protective claw (12) is always in contact with the lower end surface of the limit block (10).

5. The semi-automatic spring preloaded cigarette rod loading operation table according to any one of claims 1 to 4, characterized in that: Two guide rods (15) are provided on the bracket (1), and two sliding holes (14) are provided on the lifting plate (7), so that the lifting plate (7) moves along the guide rods (15) through the sliding holes (14).

6. The semi-automatic spring preloaded cigarette rod loading operation table according to claim 5 is characterized in that: The positioning device comprises an L-shaped pull tab (17) welded to the cigarette rod fixing frame (3) and an end positioning column (19) located at one end of the cigarette rod fixing frame (3).

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