Automatic pin inserting device

Abstract

The utility model discloses an automatic needle inserting device which comprises a needle inserting plate fixing frame, a cigarette inserting needle row bracket, needle inserting beam assemblies and a needle inserting driving 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 the lower portion of the cigarette inserting needle row bracket is detachably connected with at least one set of needle inserting beam assemblies. 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 inserting pin row bracket, and the contact pins are inserted into the tobacco frame to fix tobacco leaves. The contact pin driving mechanism is adopted to insert the contact pins into the tobacco frame to fix the 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 the tobacco leaf damage is low.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for tobacco processing, and specifically relates to an automatic needle insertion device. Background Technology

[0002] After being harvested from the field, flue-cured tobacco leaves need to be placed in curing barns for dehydration. Under high temperatures, the internal chemical components of the leaves undergo transformation, improving their overall quality. Before being placed in the curing barn, the leaves are secured with woven tobacco stalks and clips. Large quantities of these stalks or clips are then hung in layers inside the barn for curing. This method is not only time-consuming and labor-intensive, but also results in inconsistent tobacco quality. Furthermore, the process of farmers climbing up and down the barn to load the stalks or clips can sometimes pose safety risks. Existing technology includes tobacco frames, such as those described in Chinese patent applications 201010524528.0, 201510693973.2, and 202210410363.7. These frames not only save labor and eliminate the need for climbing up and down the barn, but also improve tobacco quality and curing efficiency. However, the aforementioned tobacco frame still has problems in its application: it requires manually inserting several pins one by one into the tobacco holes and leaves, which is both laborious and inefficient. Although Chinese patent application number 201510693973.2 welds several pins to a crossbar, allowing a row of pins to be inserted at once, thus improving the efficiency, relying on manual pushing force leads to fatigue, the pin insertion accuracy is affected by the stability of human operation, and it is easy to damage the tobacco leaves. The force required for inserting multiple rows of pins increases exponentially, making it difficult for ordinary workers to complete. Therefore, it is highly necessary to develop an automatic pin insertion device. Summary of the Invention

[0003] To address the problems of existing technologies, such as the difficulty and inefficiency of inserting a single pin into a tobacco frame filled with tobacco leaves, and the difficulty of inserting a row of pins into a tobacco frame filled with tobacco leaves, this utility model provides an automatic pin insertion device.

[0004] The purpose of this utility model is achieved in the following manner: an automatic needle insertion device includes a needle plate fixing frame, a needle row bracket, a needle crossbeam assembly, and a needle driving mechanism. The fixed end of the needle driving mechanism is installed on the needle plate fixing frame, and the free end is connected to the needle row bracket. At least one set of needle crossbeam assemblies is detachably connected to the lower part of the needle row bracket. Each set of needle crossbeam assemblies includes a needle crossbeam and several needles fixedly installed on the lower part of the needle crossbeam. The needle driving mechanism drives the needle crossbeam assembly to move downward through the needle row bracket, inserting the needles into the tobacco frame to fix the tobacco leaves.

[0005] The device includes a guide mechanism, which includes 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 holder is sleeved on the guide rod through a connecting plate. The cigarette needle holder moves up and down along the guide rod under the drive of the pin drive mechanism.

[0006] Each of the four corners of the cigarette insert holder is connected to a connecting plate, and four guide rods are set accordingly.

[0007] The needle insertion beam is connected to the lower part of the cigarette needle row bracket via a locking mechanism.

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

[0009] The cigarette frame is placed on the base of the tilting table, and multiple cigarette frame rollers are set on the upper surface of the tilting table base. The cigarette frame slides on the cigarette frame rollers.

[0010] Limit blocks are installed on the base frame of the tilting table.

[0011] 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 to one side of the flipping table base frame. One end of the flipping drive mechanism is hinged to the L-shaped flipping frame, and the other end is hinged to the flipping table base frame. The L-shaped flipping frame is flipped 90° under the drive of the flipping drive mechanism.

[0012] The L-shaped tilting frame includes tilting plates and track grooves arranged perpendicularly to each other. There are two track grooves, and each track groove has a flared end.

[0013] Reinforcing ribs are installed between the track groove and the bottom support of the flip plate.

[0014] Compared with the existing technology, this utility model uses a pin drive mechanism to drive the tobacco pin row bracket and the pin crossbeam assembly to move downward, insert the pins into the tobacco frame, fix the tobacco leaves, and insert at least one row of pins at a time. It has a high degree of automation, high work efficiency, and the pin insertion accuracy is not affected by human stability, resulting in low tobacco leaf breakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a side view of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of this utility model, including the flipping mechanism.

[0018] Figure 4 This is a side view of the present invention including the flipping mechanism (with smoke frame).

[0019] Figure 5 yes Figure 3 Enlarged view of point A in the middle.

[0020] Figure 6 This is a schematic diagram of another locking mechanism. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the contents of the present invention, those skilled in the art can make various modifications or alterations to the present invention, and these equivalent forms also fall within the scope defined by the present invention.

[0022] like Figure 1 and Figure 2 As shown, an automatic needle insertion device includes a needle insertion mechanism consisting of a needle plate fixing frame 1, a needle row support frame 2, a needle crossbeam assembly 3, and a needle drive mechanism 4. The fixed end of the needle drive mechanism 4 is mounted on the needle plate fixing frame 1, and the free end is connected to the needle row support frame 2. At least one set of needle crossbeam assemblies 3 are detachably connected to the bottom of the needle row support frame 2. Each set of needle crossbeam assemblies 3 includes a needle crossbeam 31 and several needles 32 fixedly installed at the lower part of the needle crossbeam 31. The needle drive mechanism 4 drives the needle crossbeam assembly 3 to move downward through the needle row support frame 2, inserting the needles into the tobacco frame 10 to fix the tobacco leaves. The needle drive mechanism 4 can insert at least one row of needles at a time, resulting in high work efficiency, needle insertion accuracy unaffected by human stability, and low tobacco leaf breakage.

[0023] Furthermore, in order to ensure that the needles are smoothly inserted into the needle holes on the cigarette frame 10 without deflection, the automatic needle insertion device also includes a guide mechanism. The guide mechanism includes a guide rod 5 installed on the needle plate fixing frame 1. The guide rod 5 is parallel to the vertical rod of the needle plate fixing frame 1. The needle insertion bracket 2 is sleeved on the guide rod 5 through the connecting plate 21. The needle insertion bracket 2 moves up and down along the guide rod 5 under the drive of the needle insertion driving mechanism.

[0024] Furthermore, a connecting plate 21 is connected to each of the four corners of the cigarette insert needle holder 2, and four guide rods 5 are set accordingly.

[0025] Furthermore, in order to support and guide the moving parts, reduce friction, improve motion accuracy, and withstand a certain load, a flange linear bearing 51 is also provided on the guide rod 5.

[0026] Furthermore, the cigarette needle holder 2 and the needle crossbeam assembly 3 are detachably connected, specifically meaning that the needle crossbeam 31 is connected to the lower part of the cigarette needle holder 2 via a locking mechanism 33. Figure 5 and Figure 6 As shown, the locking mechanism 33 is installed on the cigarette needle rack bracket 2. By rotating or pressing the handle, the needle beam 31 is fixedly locked to the cigarette needle rack bracket 2 through the locking hook.

[0027] Furthermore, in order to facilitate the insertion of the pin into the needle hole, pins 34 are provided at both ends of the pin beam 31, and the pin beam 31 is connected to the cigarette frame 10 through the pins 34.

[0028] Furthermore, the cigarette frame 10 is placed on the tilting table base 6, and multiple cigarette frame support rollers 7 are provided on the upper surface of the tilting table base 6. The cigarette frame 10 slides on the cigarette frame support rollers 7, and its position on the tilting table base 6 can be adjusted manually or by a drive mechanism. Furthermore, the cigarette frame support rollers 7 include cigarette frame support roller A and cigarette frame support roller B. The cigarette frame 10 achieves displacement in the x-direction on cigarette frame support roller A and displacement in the y-direction on cigarette frame support roller B.

[0029] Furthermore, a limiting block 8 is provided on the tilting table base 6. The presence of the limiting block 8 can limit the offset 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 in the x-direction, limiting blocks 8 need to be provided on both sides of the tilting table base 6 in the x-direction, and a limiting block 8 needs to be provided on one side of the tilting table base 6 in the y-direction, or neither side of the y-direction side needs to be provided with limiting blocks 8. If the cigarette frame 10 only undergoes a very small displacement in the x-direction for fine-tuning the cigarette frame position, limiting blocks 8 are provided on both sides of the tilting table base 6 in the y-direction. If the cigarette frame 10 needs to move a large distance or a very small displacement in the y-direction, the limiting blocks 8 are provided with reference to the above situations.

[0030] Furthermore, the automatic pin insertion device also includes a flipping 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 to one side of the flipping table base frame 6. One end of the flipping drive mechanism 11 is hinged to the L-shaped flipping frame 9, and the other end is hinged to the flipping table base frame 6. The L-shaped flipping frame 9 is flipped 90° under the drive of the flipping drive mechanism.

[0031] The L-shaped tilting frame 9 includes tilting plates 91 and track grooves 92 arranged perpendicularly to each other. The tilting plate 91 includes at least two horizontal supports and at least two vertical supports. To improve the stability of the structure, a third horizontal support is added between the two horizontal supports, and one or two more vertical supports are added between the third horizontal support and the two vertical supports. One end of the tilting drive mechanism is hinged to the third horizontal support located in the middle of the tilting plate 91. The track grooves 92 are designed to allow the smoke frame with wheels at the bottom to be pushed directly into the L-shaped tilting frame 9, reducing the use of forklifts and improving operational flexibility. There are two track grooves 92, and each track groove 92 has a flared end 93 at its end, which facilitates the adjustment of the wheels 12 at the bottom of the smoke frame so that it can smoothly enter the track groove 92.

[0032] Furthermore, a reinforcing rib 94 is provided between the track groove 92 and the bottom support of the flip plate 91.

[0033] The pin insertion drive mechanism and the flipping drive mechanism are both hydraulic cylinders, pneumatic cylinders or electric push rods, with hydraulic cylinders being preferred because they usually have greater thrust, can provide stable output, have high environmental adaptability, and are suitable for applications requiring high loads. In addition, hydraulic cylinders are relatively simple to maintain, have a relatively stable structure, a low failure rate, and low long-term operating costs.

[0034] Working process: First, the needle insertion beam assembly 3 is installed and fixed on the cigarette needle row bracket 2; then, the cigarette frame 10 is pushed into the track groove 92 of the L-shaped flipping frame 9. After the cigarette frame 10 is pushed into place, the flipping drive mechanism 11 rotates the cigarette frame 10 90° and places it horizontally on the flipping table base 6. The limit block 8 on the flipping table base 6 restricts the position of the cigarette frame 10 from large displacement; then, the needle insertion drive mechanism 4 descends, driving the cigarette needle row bracket 2 and the needle insertion beam assembly 3 to move downward, inserting the needle into the cigarette frame 10 to fix the tobacco leaves. During the downward insertion of the needle, the guide mechanism guides the cigarette needle row bracket 2 to prevent the needle from being inserted at an angle.

[0035] After the tobacco leaves are fixed with the pins, the pin beam assembly 3 is removed from the pin rack 2. The pin drive mechanism 4 drives the pin rack 2 to rise, and the flip drive mechanism 11 flips the tobacco frame 10 90° from lying horizontally on the flip table base 6 to standing upright. Then it is pushed out from the track groove 92 and directly into the curing room for curing.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. An automatic pin inserting apparatus characterized by comprising: It includes a pin plate fixing frame (1), a cigarette needle row bracket (2), a pin crossbeam assembly (3), and a pin drive mechanism (4). The fixed end of the pin drive mechanism (4) is installed on the pin plate fixing frame (1), and the free end is connected to the cigarette needle row bracket (2). At least one set of pin crossbeam assemblies (3) can be detachably connected to the bottom of the cigarette needle row bracket (2). Each set of pin crossbeam assemblies (3) includes a pin crossbeam (31) and several pins (32) fixedly installed on the lower part of the pin crossbeam (31). The pin drive mechanism drives the pin crossbeam assembly (3) to move downward through the cigarette needle row bracket (2) to insert the pins into the cigarette frame (10) to fix the tobacco leaves.

2. The automatic pin inserting apparatus according to claim 1, wherein: The guide mechanism includes 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 rack bracket (2) is sleeved on the guide rod (5) through the connecting plate (21). The cigarette needle rack bracket (2) moves up and down along the guide rod (5) under the drive of the pin drive mechanism (4).

3. The automatic pin inserting apparatus according to claim 2, wherein: A connecting plate is connected to each of the four corners of the cigarette insert holder (2), and four guide rods (5) are set accordingly.

4. The automatic pin inserting apparatus according to claim 1, wherein: The needle crossbeam (31) is connected to the lower part of the cigarette needle rack bracket (2) via a locking mechanism (33).

5. The automatic pin inserting apparatus according to claim 1, wherein: The end of the pin beam (31) is connected to the cigarette frame (10) via a pin (34).

6. The automatic pin inserting apparatus according to claim 1, wherein: The cigarette frame (10) is placed on the base frame (6) of the flipping table. Multiple cigarette frame rollers (7) are set on the upper surface of the base frame (6), and the cigarette frame (10) slides on the cigarette frame rollers (7).

7. The automatic pin inserting apparatus according to claim 6, wherein: A limit stop (8) is provided on the base frame (6) of the tilting table.

8. The automatic pin inserting apparatus according to claim 6 or 7, wherein: It also includes a flipping mechanism, which includes an L-shaped flipping frame (9) and a flipping drive mechanism (11). The L-shaped flipping frame (9) is hinged to one side of the flipping table base frame (6). One end of the flipping drive mechanism (11) is hinged to the L-shaped flipping frame (9), and the other end is hinged to the flipping table base frame (6). The L-shaped flipping frame (9) is flipped 90° under the drive of the flipping drive mechanism.

9. The automatic pin inserting apparatus according to claim 8, wherein: The L-shaped tilting frame (9) includes tilting plates (91) and track grooves (92) arranged perpendicularly to each other. There are two track grooves (92), and each track groove (92) has a flared mouth (93) at its end.

10. The automatic pin inserting apparatus according to claim 8, wherein: A reinforcing rib (94) is provided between the bottom support of the track groove (92) and the flip plate (91).

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