Automatic pin inserting device

Abstract

The invention discloses an automatic needle inserting device which comprises a needle inserting plate fixing frame, a cigarette inserting needle row bracket, needle inserting beam assemblies, a needle inserting driving mechanism and a guide mechanism, the fixed end of the needle inserting driving mechanism is installed on the needle inserting plate fixing frame, the free end of the needle inserting driving mechanism is connected with the cigarette inserting needle row bracket, and at least one set of needle inserting beam assemblies is detachably connected below the cigarette inserting needle row bracket. Each contact pin beam assembly comprises a contact pin beam and a plurality of contact pins fixedly installed on the lower portion of the contact pin beam, the contact pin driving mechanism drives the contact pin beam assemblies to move downwards through the tobacco insertion pin row bracket under the guiding of the guiding mechanism, and the contact pins are inserted into a tobacco frame to fix tobacco leaves; a tobacco frame is placed on the overturning table bottom frame, a plurality of tobacco frame carrier rollers are arranged on the upper surface of the overturning table bottom frame, and the tobacco frame can slide on the tobacco frame carrier rollers. The contact pin driving mechanism is adopted to insert the contact pins into the tobacco frame to fix tobacco leaves, at least one row of contact pins can be inserted at a time, the automation degree is high, the operation efficiency is high, the contact pin precision is not influenced by manpower stability, and tobacco leaf damage is low.

Description

Technical Field

[0001] The invention belongs to the technical field of flue-cured tobacco processing auxiliary equipment, and in particular relates to an automatic needle insertion device. Background Art

[0002] After being harvested from the field, flue-cured tobacco leaves need to be sent to the curing room for curing, so that the tobacco leaves are dehydrated, and the chemical components inside them are transformed under the action of high temperature to improve the coordination. Before the tobacco leaves are sent to the curing room, they need to be fixed by braided tobacco rods and tobacco clips, and then a large number of braided tobacco rods or tobacco clips are hung in layers in the curing room for curing. This method is not only time-consuming and labor-intensive, but also the quality of tobacco leaves is unstable. In addition, when tobacco farmers load braided rods or tobacco clips into the curing room, they climb up and down, which sometimes causes safety problems. A kind of tobacco frame also appears in the prior art, such as Chinese patents with application numbers 201010524528.0, 201510693973.2 and 202210410363.7. The above-mentioned tobacco frame can not only save manpower and avoid climbing up and down during loading into the curing room, but also improve the quality of tobacco leaves and the efficiency of curing tobacco. However, there are still problems with the above-mentioned tobacco frame when it is used: it is necessary to manually insert several pins into the tobacco holes and tobacco leaves one by one, which is laborious and inefficient. Although the Chinese patent with application number 201510693973.2 welds several pins on the crossbar, and can insert a row of pins at a time, which improves the efficiency of pin insertion, but if it relies on manual thrust, manual operation is prone to fatigue, and the pin insertion accuracy is affected by human stability, which can easily cause tobacco leaf damage. When inserting multiple rows of pins, the force required increases exponentially, which is difficult for ordinary workers to complete. Therefore, it is very necessary to develop an automatic pin insertion device. Summary of the invention

[0003] Aiming at the problems in the prior art that it is laborious and inefficient to insert a single pin into a cigarette frame full of tobacco leaves, and it is difficult to insert a row of pins into a cigarette frame full of tobacco leaves, the present invention provides an automatic pin insertion device.

[0004] The objective of the present invention is achieved in the following manner: an automatic pin insertion device comprises a pin plate fixing frame, a cigarette needle row bracket, a pin crossbeam assembly, a pin driving mechanism and a guide mechanism, the fixed end of the pin driving mechanism is mounted on the pin plate fixing frame, and the free end is connected to the cigarette needle row bracket, at least one group of pin crossbeam assemblies is detachably connected to the lower part of the cigarette needle row bracket, each group of pin crossbeam assemblies comprises a pin crossbeam and a plurality of pins fixedly mounted on the lower part of the pin crossbeam, the pin driving mechanism drives the pin crossbeam assembly to move downward through the cigarette needle row bracket under the guidance of the guide mechanism, and inserts the pins into the cigarette frame to fix the tobacco leaves; the cigarette frame is placed on the bottom frame of the turning table, a plurality of cigarette frame rollers are arranged on the upper surface of the bottom frame of the turning table, and the cigarette frame slides on the cigarette frame rollers.

[0005] The guide mechanism comprises a guide rod mounted on the pin plate fixing frame and parallel to the vertical rod of the pin plate fixing frame. The cigarette needle row bracket is sleeved on the guide rod through a connecting plate. The cigarette needle row bracket rises and falls along the guide rod under the drive of the pin driving mechanism.

[0006] The four corners of the cigarette needle row bracket are respectively connected to a connecting plate, and four guide rods are correspondingly arranged.

[0007] The pin crossbeam is connected to the lower part of the cigarette pin row bracket through a locking mechanism.

[0008] The end of the pin beam is connected to the cigarette frame through a latch.

[0009] A limit stopper is arranged on the bottom frame of the turning table.

[0010] It also includes a flipping mechanism, which includes an L-shaped flipping frame and a flipping drive mechanism. The L-shaped flipping frame is hinged on one side of the flipping table base frame, one end of the flipping drive mechanism is hinged on the L-shaped flipping frame, and the other end is hinged on the flipping table base frame. The L-shaped flipping frame can be flipped 90 degrees under the drive of the flipping drive mechanism.

[0011] The L-shaped turning frame comprises a turning plate and a track groove which are arranged perpendicularly to each other. There are two track grooves, and a flare is arranged at the end of each track groove.

[0012] Reinforcing ribs are arranged between the track groove and the bottom support of the flip plate.

[0013] Compared with the prior art, the present invention adopts a pin drive mechanism to drive the cigarette insertion pin row bracket and the pin crossbeam assembly to move downward, insert the pins into the cigarette frame, and fix the tobacco leaves. At least one row of pins can be inserted at a time, with a high degree of automation and high operating efficiency. The pin insertion accuracy is not affected by human stability, and the tobacco leaf breakage is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention (without the cigarette frame).

[0015] Figure 2 It is a side view of the present invention (without cigarette frame).

[0016] Figure 3 It is a schematic diagram of the structure of the present invention including the turning mechanism.

[0017] Figure 4 It is a side view of the present invention including the flipping mechanism (with cigarette frame).

[0018] Figure 5 yes Figure 3 Enlarged view of point A in the middle.

[0019] Figure 6 It is a structural schematic diagram of another locking mechanism. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present invention.

[0021] like Figure 1 and Figure 2 As shown, the automatic pin insertion device comprises a pin insertion mechanism and a guide mechanism consisting of a pin plate fixing frame 1, a cigarette needle row bracket 2, a pin insertion beam assembly 3, and a pin insertion drive mechanism 4. The fixed end of the pin insertion drive mechanism 4 is mounted on the pin plate fixing frame 1, and the free end is connected to the cigarette needle row bracket 2. At least one group of pin insertion beam assemblies 3 are detachably connected to the lower part of the cigarette needle row bracket 2. Each group of pin insertion beam assemblies 3 comprises a pin insertion beam 31 and a plurality of pins 32 fixedly mounted on the lower part of the pin insertion beam 31. The pin insertion drive mechanism 4 drives the pin insertion beam assembly 3 to move downward through the cigarette needle row bracket 2 under the guidance of the guide mechanism, and inserts the pins into the cigarette frame 10 to fix the tobacco leaves. The cigarette frame is placed on the bottom frame of the turning table, and a plurality of cigarette frame rollers are arranged on the upper surface of the bottom frame of the turning table. The cigarette frame can slide on the cigarette frame rollers and adjust the appropriate position to align the cigarette frame with the pin insertion beam assembly 3. The pin drive mechanism 4 can insert at least one row of pins at a time, with high operating efficiency, pin insertion accuracy not affected by human stability, and low tobacco leaf breakage.

[0022] Furthermore, in order to allow the insertion pin to be smoothly inserted into the cigarette pin hole on the cigarette frame 10 without deflection, the automatic pin insertion device also includes a guiding mechanism, which includes a guide rod 5 installed on the pin plate fixing frame 1, the guide rod 5 is parallel to the vertical rod of the pin plate fixing frame 1, and the cigarette pin row bracket 2 is sleeved on the guide rod 5 through the connecting plate 21. The cigarette pin row bracket 2 is lifted and lowered along the guide rod 5 under the drive of the pin driving mechanism.

[0023] Furthermore, four corners of the cigarette needle array bracket 2 are respectively connected to a connecting plate 21, and four guide rods 5 are correspondingly provided.

[0024] Furthermore, in order to support and guide the moving parts, reduce friction, improve the movement accuracy, and withstand a certain load, a square flange linear bearing 51 is also provided on the guide rod 5.

[0025] Furthermore, the cigarette needle row bracket 2 is detachably connected to the needle beam assembly 3, specifically, the needle beam 31 is connected to the lower part of the cigarette needle row bracket 2 through a locking mechanism 33. Figure 5 and Figure 6 As shown, the locking mechanism 33 is installed on the cigarette needle row bracket 2, and the handle is rotated or pressed to fix and lock the needle beam 31 and the cigarette needle row bracket 2 through the locking hook.

[0026] Furthermore, in order to allow the pin to be smoothly inserted into the pin hole, latches 34 are respectively provided at both ends of the pin beam 31 , and the pin beam 31 is connected to the cigarette frame 10 through the latches 34 .

[0027] The cigarette frame 10 slides on the cigarette frame roller 7, and the position of the cigarette frame 10 on the flip table bottom frame 6 can be adjusted manually or by a driving mechanism. Furthermore, the cigarette frame roller 7 includes a cigarette frame roller A and a cigarette frame roller B, and the cigarette frame 10 realizes displacement in the x direction on the cigarette frame roller A, and realizes displacement in the y direction on the cigarette frame roller B.

[0028] Furthermore, a limit stopper 8 is provided on the flip table base frame 6. The presence of the limit stopper 8 can limit the displacement of the cigarette frame 10, making it easier for the pin insertion mechanism to smoothly insert the pin into the cigarette hole. If the cigarette frame 10 needs to move a large distance along the x direction, limit stops 8 need to be provided on both sides of the x direction of the flip table base frame 6, and a limit stopper 8 is provided on one side of the y direction of the flip table base frame 6, or no limit stopper 8 is provided on both sides of the y direction; if the cigarette frame 10 only has a very small displacement along the x direction for fine-tuning the position of the cigarette frame, limit stops 8 are provided on both sides of the y direction of the flip table base frame 6. If the cigarette frame 10 needs to move a large distance or a very small displacement along the y direction, set the limit stopper 8 with reference to the above situation.

[0029] Furthermore, the automatic needle insertion device also includes a flip mechanism, such as Figure 3 and Figure 4 As shown, the flipping mechanism includes an L-shaped flipping frame 9 and a flipping drive mechanism 11. The L-shaped flipping frame 9 is hinged on one side of the flipping table base frame 6. One end of the flipping drive mechanism 11 is hinged on the L-shaped flipping frame 9, and the other end is hinged on the flipping table base frame 6. The L-shaped flipping frame 9 can be flipped 90° under the drive of the flipping drive mechanism.

[0030] The L-shaped flip frame 9 includes a flip plate 91 and a track groove 92 which are arranged perpendicular to each other. The flip plate 91 includes at least two horizontal braces and at least two vertical braces. In order to improve the stability of the structure, a third horizontal brace is added between the two horizontal braces, and one or two vertical braces are added between the third horizontal brace and the two vertical braces. One end of the flip driving mechanism is hinged on the third horizontal brace located in the middle of the flip plate 91. The setting of the track groove 92 facilitates the direct pushing of the cigarette frame with wheels at the bottom into the L-shaped flip frame 9, reduces the use of forklifts, and improves the flexibility of operation; there are two track grooves 92, and a trumpet 93 is set at the end of each track groove 92, which is convenient for adjusting the wheels 12 at the bottom of the cigarette frame so that it can enter the track groove 92 smoothly.

[0031] Furthermore, a reinforcing rib 94 is provided between the track groove 92 and the bottom support of the flip plate 91 .

[0032] The pin drive mechanism and the flip drive mechanism are both oil cylinders, air cylinders or electric push rods. Oil cylinders are preferred because they usually have greater thrust, can provide stable output, have high environmental adaptability, and are suitable for application scenarios requiring high loads. In addition, oil cylinders are relatively simple to maintain, have a relatively stable structure, a low failure rate, and low long-term use costs.

[0033] Working process: First, install and fix the pin beam assembly 3 on the cigarette needle row bracket 2; then push the cigarette frame 10 into the track groove 92 of the L-shaped flip frame 9. After the cigarette frame 10 is pushed into place, the flip drive mechanism 11 is activated to flip the cigarette frame 10 90° and place it horizontally on the flip table base frame 6. The limit block 8 on the flip table base frame 6 restricts the position of the cigarette frame 10 from being greatly offset; then, the pin drive mechanism 4 descends, driving the cigarette needle row bracket 2 and the pin beam assembly 3 to move downward, and the pin is inserted into the cigarette frame 10 to fix the tobacco leaves. During the downward insertion of the pin, the guide mechanism guides the cigarette needle row bracket 2 to prevent the pin from being inserted obliquely.

[0034] After the tobacco leaves are fixed by the needles, the needle beam assembly 3 is removed from the needle insertion bracket 2, the needle drive mechanism 4 drives the needle insertion bracket 2 to rise, and the flip drive mechanism 11 is actuated to flip the cigarette frame 10 90°, from lying horizontally on the flip table base frame 6 to an upright state, and then pushed out from the track groove 92 and directly pushed into the baking room for baking.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. Automatic needle insertion device, characterized in that: The invention comprises a pin plate fixing frame (1), a cigarette needle row bracket (2), a pin crossbeam assembly (3), a pin driving mechanism (4) and a guide mechanism. The fixed end of the pin driving mechanism (4) is mounted on the pin plate fixing frame (1), and the free end is connected to the cigarette needle row bracket (2). At least one group of pin crossbeam assemblies (3) is detachably connected to the lower part of the cigarette needle row bracket (2). Each group of pin crossbeam assemblies (3) comprises a pin crossbeam (31) and a plurality of pins (32) fixedly mounted on the lower part of the pin crossbeam (31). The pin driving mechanism drives the pin crossbeam assembly (3) to move downward through the cigarette needle row bracket (2) under the guidance of the guide mechanism, and inserts the pins into the cigarette frame (10) to fix the tobacco leaves. The cigarette frame (10) is placed on a turning table bottom frame (6). A plurality of cigarette frame rollers (7) are arranged on the upper surface of the turning table bottom frame (6). The cigarette frame (10) can slide on the cigarette frame rollers (7).

2. The automatic needle insertion device according to claim 1, characterized in that: The guide mechanism comprises a guide rod (5) mounted on the pin plate fixing frame (1) and parallel to the vertical rod of the pin plate fixing frame (1); the cigarette needle row bracket (2) is sleeved on the guide rod (5) via a connecting plate (21); and the cigarette needle row bracket (2) is raised and lowered along the guide rod (5) under the drive of the pin drive mechanism (4).

3. The automatic needle insertion device according to claim 1, characterized in that: The four corners of the cigarette needle row bracket (2) are respectively connected to a connecting plate, and four guide rods (5) are correspondingly provided.

4. The automatic needle insertion device according to claim 1, characterized in that: The needle insertion beam (31) is connected to the lower part of the cigarette insertion needle row bracket (2) via a locking mechanism (33).

5. The automatic needle insertion device according to claim 1, characterized in that: The end of the pin crossbeam (31) is connected to the cigarette frame (10) via a latch (34).

6. The automatic needle insertion device according to claim 1, characterized in that: A limit stopper (8) is provided on the bottom frame (6) of the turning table.

7. The automatic needle insertion device according to claim 1 or 6, characterized in that: The invention also comprises a turning mechanism, wherein the turning mechanism comprises an L-shaped turning frame (9) and a turning drive mechanism (11), wherein the L-shaped turning frame (9) is hinged on one side of a turning platform base frame (6), and the turning drive mechanism (11) has one end hinged on the L-shaped turning frame (9) and the other end hinged on the turning platform base frame (6), and the L-shaped turning frame (9) is turned 90 degrees under the drive of the turning drive mechanism.

8. The automatic needle insertion device according to claim 7, characterized in that: The L-shaped turning frame (9) comprises a turning plate (91) and a track groove (92) which are arranged perpendicular to each other. There are two track grooves (92), and a bell mouth (93) is arranged at the end of each track groove (92).

9. The automatic needle insertion device according to claim 7, characterized in that: A reinforcing rib (94) is provided between the track groove (92) and the bottom support of the flip plate (91).

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