Paper jam needle return prevention and ejection structure

Abstract

The utility model discloses a paper plug needle return position prevents taking out structure relates to firework tube production technical field, including pressing plate. The paper plug needle return position prevents taking out structure provided in the application, enables side cylinder and drives the pressing plate to drop through connecting rod, and the floating plate in the height gap of pressing plate and hole plate is driven synchronously to move in this interval, and the part of the needle cylinder is contacted and cut paperboard through the paper plug needle that sends and exposes, after the paperboard is cut into the paper piece of preset size by the paper plug needle that sends, the limit pin of spacing rod top reaches the maximum stroke, and the moving stroke of subsequent floating plate is further limited, but the hole plate and the needle cylinder that it installs still continue to move under the pushing of side cylinder to pressing plate, so the needle cylinder ejects the paper piece that is cut by the paper plug needle that sends and places in the firework inner tube, and the paper piece is completely separated from the paper plug needle that sends and falls into the firework inner tube accurately through the step -by -step movement design of floating plate and hole plate.

Description

Technical Field

[0001] This utility model relates to the field of fireworks tube production technology, specifically a paper-inserting needle return structure to prevent it from being pulled out. Background Technology

[0002] The discs (mostly made of cardboard) placed inside the fireworks tube are an important part of the fireworks structure. They are mainly used to separate the gunpowder layers, seal the cavity, or fix the internal components, and directly affect the stability and effect of the fireworks display.

[0003] However, in actual production, when using a feeding needle to cut and feed paper, due to the adsorption or friction between the feeding needle and the cut paper, and the lack of an effective separation structure, the feeding needle easily causes the paper to rise synchronously during the return process, resulting in the paper being carried out of the fireworks inner tube. This seriously restricts the automation efficiency and product qualification rate of fireworks inner tube assembly. Utility Model Content

[0004] The purpose of this invention is to provide a paper-inserting needle return structure to prevent it from being pulled out, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a paper-inserting needle return and anti-ejection structure, including a pressure plate, with guide sleeves installed around the pressure plate, and connecting arms evenly distributed on the outer edge of the bottom of the pressure plate. The end of the connecting arm away from the pressure plate is fixed to a perforated plate, and holes are evenly opened in the middle of the perforated plate, with syringes correspondingly installed in the holes of the perforated plate.

[0006] Furthermore, the syringe is provided with an axial through hole inside, and the axial through hole of the syringe is connected to the hole provided at the corresponding orifice plate mounting position.

[0007] Furthermore, connecting rods are bolted to both ends of the top of the pressure plate, and the connecting rods are respectively connected to the telescopic ends of the two side cylinders.

[0008] Furthermore, a floating plate is installed within the height gap between the pressure plate and the perforated plate, and feeding needles are evenly distributed at the bottom of the floating plate.

[0009] Furthermore, the needle is connected to the corresponding syringe through the hole in the perforated plate, and the outer diameter of the needle is smaller than the inner diameter of the syringe hole.

[0010] Furthermore, limit rods are fixedly installed around the top of the floating plate, and limit pins are installed at the top of each limit rod, with springs sleeved at the base of each limit rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In use, this utility model activates the side cylinder and drives the pressure plate to descend via the connecting rod. During this process, the floating plate within the height gap between the pressure plate and the perforated plate moves synchronously. The part of the needle protruding from the syringe contacts and cuts the cardboard. After the cardboard is cut to a preset size by the needle, the limiting pin at the top of the limiting rod reaches its maximum stroke, thereby limiting the subsequent movement of the floating plate. However, the perforated plate and the syringe installed thereon continue to move under the push of the side cylinder on the pressure plate. Therefore, the syringe pushes out the paper cut by the needle and places it into the inner tube of the firework. This application, through the step-by-step movement design of the floating plate and the perforated plate, allows the syringe to continue pushing the paper cut by the needle after the limiting pin limits the floating plate, ensuring that the paper completely detaches from the needle and falls accurately into the inner tube of the firework, thus structurally preventing the problem of the paper being pulled out during return. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a schematic diagram of part of the structure of the device of this utility model; Figure 3 This is a schematic diagram of part of the structure of the device of this utility model.

[0013] In the diagram: 1. Pressure plate; 2. Guide sleeve; 3. Connecting arm; 4. Orifice plate; 5. Syringe; 6. Connecting rod; 7. Side cylinder; 8. Floating plate; 9. Needle feeder; 10. Limiting rod; 11. Limiting pin; 12. Spring. Detailed Implementation

[0014] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0015] like Figures 1 to 3As shown, the paper-feeding needle return and anti-outflow structure includes a pressure plate 1, with guide sleeves 2 installed around the pressure plate 1. Connecting arms 3 are evenly distributed on the bottom outer edge of the pressure plate 1. The end of the connecting arm 3 facing away from the pressure plate 1 is fixed to a perforated plate 4. Holes are evenly opened in the middle of the perforated plate 4, and a syringe 5 is installed in each hole. The syringe 5 has an axial through hole inside, and the axial through hole of the syringe 5 is connected to the hole at the corresponding installation position of the perforated plate 4. When the side cylinder 7 is activated, the pressure plate 1 is lowered through the connecting rod 6. At the same time, the floating plate 8 within the height gap between the pressure plate 1 and the perforated plate 4 moves synchronously. The part of the feeding needle 9 exposed in the syringe 5 contacts and cuts the paperboard, cutting the paperboard into a preset size. The connecting rod 6 is bolted to both ends of the top of the pressure plate 1, and the connecting rod 6 is respectively connected to two side cylinders. At the telescopic end of cylinder 7, a floating plate 8 is installed within the height gap between pressure plate 1 and perforated plate 4. Needles 9 are evenly distributed at the bottom of the floating plate 8. The needles 9 communicate with the corresponding syringes 5 through holes in perforated plate 4. The outer diameter of the needles 9 is smaller than the inner diameter of the through hole in syringe 5. Limiting rods 10 are fixedly installed around the top of the floating plate 8, and limiting pins 11 are installed at the top of each limiting rod 10. Springs 12 are fitted at the base of each limiting rod 10. After the cardboard is cut to a preset size by the needles 9, the limiting pins 11 at the top of the limiting rods 10 reach their maximum stroke, thus limiting the subsequent movement of the floating plate 8. However, the perforated plate 4 and the syringes 5 installed thereon continue to move under the push of the side cylinder 7 against the pressure plate 1. Therefore, the syringes 5 push out the paper cut by the needles 9 and place it inside the fireworks cylinder.

[0016] Working principle: The side cylinder 7 is activated and the connecting rod 6 drives the pressure plate 1 to descend. At the same time, the floating plate 8 within the height gap between the pressure plate 1 and the perforated plate 4 moves synchronously. The part of the needle 9 exposed in the syringe 5 contacts and cuts the cardboard. After the cardboard is cut to the preset size by the needle 9, the limiting pin 11 at the top of the limiting rod 10 reaches its maximum stroke, thereby limiting the subsequent movement of the floating plate 8. However, the perforated plate 4 and the syringe 5 installed thereon continue to move under the push of the side cylinder 7 on the pressure plate 1. Therefore, the syringe 5 pushes out the paper cut by the needle 9 and places it into the inner tube of the firework. Through the step-by-step movement design of the floating plate 8 and the perforated plate 4, the syringe 5 continues to push the paper cut by the needle 9 after the limiting pin 11 limits the floating plate 8, ensuring that the paper completely detaches from the needle 9 and falls accurately into the inner tube of the firework, thus structurally preventing the problem of the paper being pulled out during return.

[0017] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A paper-inserting needle return and anti-ejection structure, comprising a pressure plate (1), characterized in that, The pressure plate (1) is equipped with guide sleeves (2) around its perimeter, and connecting arms (3) are evenly distributed on the bottom outer edge of the pressure plate (1). The end of the connecting arm (3) facing away from the pressure plate (1) is fixed to the perforated plate (4). Holes are evenly opened in the middle of the perforated plate (4), and syringes (5) are installed in the holes of the perforated plate (4).

2. The paper-plugging needle return and anti-outflow structure according to claim 1, characterized in that, The syringe (5) has an axial through hole inside, and the axial through hole of the syringe (5) is connected to the hole provided at the corresponding orifice plate (4) installation position.

3. The paper-plugging needle return and anti-outflow structure according to claim 2, characterized in that, The top two ends of the pressure plate (1) are bolted with connecting rods (6), and the connecting rods (6) are respectively connected to the telescopic ends of the two side cylinders (7).

4. The paper-plugging needle return and anti-outflow structure according to claim 3, characterized in that, A floating plate (8) is installed in the height gap between the pressure plate (1) and the perforated plate (4), and needles (9) are evenly distributed at the bottom of the floating plate (8).

5. The paper-plugging needle return and anti-outflow structure according to claim 4, characterized in that, The needle (9) is connected to the corresponding syringe (5) through the hole provided in the perforated plate (4), and the outer diameter of the needle (9) is smaller than the inner diameter of the through hole of the syringe (5).

6. The paper-plugging needle return and anti-outflow structure according to claim 5, characterized in that, Limiting rods (10) are fixedly installed around the top of the floating plate (8), and limiting pins (11) are installed at the top of each limiting rod (10), and springs (12) are sleeved at the base of each limiting rod (10).

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