An inner cylinder dispensing and sealing device

Abstract

This invention belongs to the field of dispensing and sealing technology, and discloses an inner cylinder dispensing and sealing device, including an inner cylinder dispensing mechanism. The inner cylinder dispensing mechanism includes: a dispensing mold with several dispensing outlets at its bottom, each outlet fitted with a dispensing needle; a mold cover plate that cooperates with the dispensing mold and has a dispensing inlet for glue entry; a vibrator mounted on the surface of the mold cover plate; and a sealing strip for gap sealing between the dispensing mold and the mold cover plate; a sealing plate located in the space formed by the dispensing mold and the mold cover plate and driven by a vertical linear power source, which provides power for the dispensing action; and a clamping plate connected to the sealing plate and located below it, having several mounting holes for engaging glue plugs. This invention solves the problems of low efficiency, significant safety hazards, and difficulty in quality control caused by manual operation or semi-mechanized equipment.

Description

Technical Field

[0001] This invention belongs to the field of dispensing and sealing technology, specifically relating to an inner cylinder dispensing and sealing device. Background Technology

[0002] In the production of special ammunition and civilian pyrotechnics (such as flares, signal flares, and aerial shells), the inner cylinder loading is one of the key steps determining the final effect of the product. After loading, the inner cylinder is filled with various flammable and explosive materials, including oxidizers, reducing agents, luminescent pellets (bright beads), and propellant. To ensure the stability and safety of these materials during storage, transportation, and use, and to prevent moisture absorption, leakage, or mixing, the inner cylinder must be effectively sealed. Paraffin sealing, as a mature process, is widely used in sealing operations after inner cylinder loading due to its good sealing properties, moisture resistance, and low cost.

[0003] However, traditional paraffin sealing operations rely heavily on manual labor or semi-mechanized equipment, which presents the following prominent problems: First, manual operation is inefficient and difficult to adapt to the needs of mass production. Secondly, the lack of precise control over the heating, conveying and quantitative filling process of paraffin wax can easily lead to uneven sealing, dripping or excessive filling, affecting the consistency of product quality. Furthermore, the paraffin heating process poses risks of high-temperature burns and fires. In addition, under manual operation conditions, operators are exposed to high-temperature paraffin and drug residues for extended periods, posing serious occupational health and safety hazards.

[0004] In addition, traditional equipment mostly uses fixed tooling, which makes it difficult to adapt to the production changeover needs of products with multiple specifications and categories. The equipment reuse rate is low, and cleaning during production changeover is difficult, which cannot meet the current urgent needs of the pyrotechnics industry for flexible and automated production lines.

[0005] To address the aforementioned issues, there is an urgent need to develop an inner cylinder dispensing and sealing device. Summary of the Invention

[0006] In view of the problems of low efficiency, prominent safety hazards and difficulty in quality control caused by the reliance on manual operation or semi-mechanized equipment in the sealing process of the inner cylinder of special ammunition and civilian pyrotechnics after loading, the purpose of this invention is to provide an inner cylinder glue dispensing and sealing device to solve the above problems.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: An inner cylinder dispensing and sealing device includes an inner cylinder dispensing mechanism, wherein the inner cylinder dispensing mechanism is equipped with, A dispensing mold, wherein the bottom of the dispensing mold is provided with a plurality of dispensing outlets, and dispensing needles are installed at the dispensing outlets; A mold cover plate, which cooperates with the dispensing mold, is provided with a dispensing inlet for the glue to enter. A vibrator is installed on the surface of the mold cover plate. The gap between the dispensing mold and the mold cover plate is sealed by a sealing strip. The sealing plate is located in the space formed by the dispensing mold and the mold cover plate and is driven by a vertical linear power source, which provides power for the dispensing action. A card plate is connected to the sealing plate and located below the sealing plate. The card plate has several mounting holes, which are used to engage rubber plugs. The rubber plugs have inwardly recessed grooves. The shape of the dispensing outlet is adapted to the shape of the end of the glue stopper.

[0008] When the inner cylinder dispensing mechanism of this invention is working, liquid paraffin glue is sent into the dispensing mold through the dispensing inlet. The vibrator vibrates to make the glue evenly distributed and flow into the dispensing outlet below the dispensing mold. The linear power source drives the sealing plate, the clamping plate, and the glue plug to descend. The glue plug pushes the glue in the dispensing outlet evenly out through the dispensing needle and injects it into the inner cylinder below to complete the dispensing and sealing. After the dispensing is completed, the linear power source resets and the glue plug descends to seal the dispensing outlet and the dispensing needle to prevent leakage. The rubber stopper is inserted into the mounting hole through an inwardly recessed groove. The rubber stopper itself can be squeezed and deformed, thus locking into the mounting hole and preventing it from falling off after installation.

[0009] In some alternative instances, the linear power source is a down-pressure cylinder.

[0010] In some optional examples, guide tubes can also be installed on the mold cover plate to guide the moving end of the linear power source, thereby regulating the up and down movement of the sealing plate, clamping plate, and rubber plug, and improving the stability and accuracy of the movement.

[0011] As a preferred technical solution of the present invention, it further includes an inner cylinder conveying line, a lifting mechanism, and a frame for placing the inner cylinder dispensing mechanism. A tray is placed on the inner cylinder conveying line, and the tray is provided with positioning holes for placing the inner cylinder. The inner cylinder conveyor line is equipped with a blocking positioner and a position sensor; The lifting mechanism is equipped with a lifting cylinder, a guide column, and a lifting plate; The lifting plate is connected to the output end of the lifting cylinder; The guide column is installed on the lower surface of the lifting plate and cooperates with the guide ring set on the inner cylinder conveyor frame; The inner cylinder conveyor line passes through the frame and is located below the inner cylinder dispensing mechanism.

[0012] In this invention, the inner cylinder conveyor line is installed on a horizontal ground, located at the bottom of the frame, and runs through the front and rear of the frame to carry and transport pallets containing inner cylinders; The inner cylinder conveyor line uses a motor-driven belt drive, which can realize continuous or intermittent pallet conveying; The blocking positioner is installed inside the inner cylinder conveyor frame and consists of a blocking cylinder and a blocking block. When the pallet is conveyed to this position, the blocking cylinder drives the blocking block to rise, accurately blocking and positioning the pallet at the dispensing station to ensure the vertical alignment of the inner cylinder and the dispensing needle. The lifting mechanism is installed below the inner cylinder conveyor line and includes a lifting cylinder, guide columns, and a lifting plate. The lifting cylinder is installed on the bottom frame of the inner cylinder conveyor line, and its working end is connected to the lifting plate. The guide columns are installed around the lifting plate and cooperate with the guide rings on the inner cylinder conveyor line frame to ensure the vertical accuracy of the lifting action. When the position sensor detects that the tray is in place, the lifting cylinder drives the lifting plate to rise, smoothly lifting the tray so that the upper end face of the inner cylinder is aligned and in contact with the lower end face of the dispensing needle, ensuring that the glue is accurately injected into the inner cylinder during dispensing. After dispensing is completed, the lifting mechanism descends, the tray falls back onto the inner cylinder conveyor line, the blocking positioner retracts, the inner cylinder conveyor line starts, and the inner cylinder with the dispensing and sealing completed is transported to the next process. At the same time, a new tray enters the dispensing station to start the next cycle.

[0013] As a preferred technical solution of the present invention, it also includes an adhesive storage tank; The dispensing storage tank is equipped with a stirrer and has a liquid level sensor inside; A heating and insulation layer is provided on the outside of the dispensing storage tank, and the heating and insulation layer is electrically connected to the temperature controller. The bottom of the dispensing reservoir is provided with a dispensing port, and a ball valve is installed at the dispensing inlet of the mold cover plate. The other end of the ball valve is connected to the dispensing port at the bottom of the dispensing reservoir.

[0014] In this invention, a dispensing reservoir stores adhesive, and a heating and insulation layer covers the outside of the reservoir and is electrically connected to a temperature controller to heat and maintain the adhesive temperature. The temperature controller is installed outside the reservoir and can precisely control the heating temperature to ensure that the adhesive remains liquid and does not overheat. A stirrer is installed on the top of the reservoir and consists of a stirring motor and a stirring paddle to prevent the adhesive from separating or solidifying. A level sensor is installed inside the reservoir and is electrically connected to the electrical control system to monitor the remaining adhesive level in real time. The dispensing port is located at the bottom of the reservoir and is connected to a ball valve on the mold cover plate via a pipeline.

[0015] As a preferred technical solution of the present invention, it also includes a gantry frame for realizing quick disassembly and quick assembly of dispensing molds. The limiting seats have two rows arranged in parallel. The opposite side of the limiting seats is provided with a through guide groove along the length direction. The limiting seats are provided with threaded holes that communicate with the guide groove. The dispensing mold has guide strips on both sides of its exterior that are adapted to the guide groove; The threaded hole connects to the knob plunger. When the knob plunger is in contact with the dispensing mold, the dispensing mold is in a fixed state. When the knob plunger is not in contact with the dispensing mold, the dispensing mold is in a free state. The gantry frame is installed on the upper surface of the two rows of limit seats; The linear power source is fixed on the gantry with its output end facing downwards.

[0016] In this invention, the gantry provides a foundation for the installation of the linear power source; When installing the dispensing mold, the dispensing mold slides directly into the guide groove of the limit seat through the guide bar, and the knob plunger locks into the threaded hole. The knob plunger is used for quick positioning and locking of the dispensing mold. When it is necessary to disassemble the dispensing mold, loosen the knob plunger to remove the dispensing mold.

[0017] The beneficial effects of this invention are: 1. By using the thermostat of the glue storage tank, the temperature of the paraffin glue solution is kept constant, avoiding sealing quality defects caused by inaccurate temperature. 2. Through the coordinated control of the ball valve and the vibrator, the quantitative delivery and uniform distribution of the adhesive liquid are achieved, ensuring that the sealing amount of each inner cylinder is consistent; 3. Through the linkage design of the dispensing mold sealing plate and the clamping plate driven by the linear power source, combined with the automatic sealing function of the glue stopper, the precise dispensing and anti-drip effect are achieved, significantly improving the consistency of sealing quality; 4. The dispensing mold can be quickly assembled and disassembled by rotating the plunger, which can flexibly adapt to different specifications of inner cylinder products and meet the needs of flexible production of multiple varieties. 5. The inner cylinder conveyor line has blocking positioning and lifting functions, realizing automatic conveying and precise positioning of the inner cylinder, seamlessly connecting with the preceding and following processes, and ensuring stable work efficiency. Attached Figure Description

[0018] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the external structure of the inner cylinder dispensing mechanism in an embodiment of the present invention; Figure 3 This is a cross-sectional view of the inner cylinder dispensing mechanism in an embodiment of the present invention; Figure 4 For the embodiments of the present invention in Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the inner cylinder conveyor line in an embodiment of the present invention; The symbols for the main components are explained below: 1. Glue-dispensed storage container; 2. Inner cylinder dispensing mechanism; 21. Dispensing mold; 211. Guide strip; 212. Dispensing outlet; 22. Mold cover plate; 23. Limit seat; 24. Knob plunger; 25. Linear power source; 26. Ball valve; 27. Sealing plate; 28. Clamping plate; 281. Mounting hole; 29. ​​Plug; 3. Rack; 4. Inner cylinder conveyor line; 41. Pallet; 42. Blocking positioner; 43. Lifting mechanism; 201. Gantry frame; 202. Sealing strip; 203. Dispensing needle; 204. Vibrator. Detailed Implementation

[0019] The technical solutions of the present invention will be described in detail below with reference to specific embodiments and accompanying drawings. The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the present invention; these descriptions are explanatory and exemplary, and should not be construed as limiting the implementation methods or the scope of protection of the present invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein. Example

[0020] like Figure 2 , 3 As shown in Figure 4, this embodiment provides an inner cylinder dispensing and sealing device, including an inner cylinder dispensing mechanism 2, which is equipped with... A dispensing mold 21 is provided at the bottom of the dispensing mold 21, and a dispensing needle 203 is installed at the dispensing outlet 212. The mold cover plate 22 is fitted with the dispensing mold 21 and is provided with a dispensing inlet for the glue to enter. A vibrator 204 is installed on the surface of the mold cover plate 22. The gap between the dispensing mold 21 and the mold cover plate 22 is sealed by a sealing strip 202. The sealing plate 27 is located in the space formed by the dispensing mold 21 and the mold cover plate 22 and is driven by the vertical linear power source 25, which provides power for the dispensing action. The card plate 28 is connected to the sealing plate 27 and is located below the sealing plate 27. The card plate 28 is provided with several mounting holes 281, which are used to engage rubber plugs 29. The rubber plugs 29 are provided with inwardly recessed grooves. The shape of the dispensing outlet 212 is adapted to the end shape of the glue stopper 29. The dispensing outlet 212 is conical and has a glue outlet channel at the bottom of the conical shape.

[0021] In this embodiment, when the inner cylinder dispensing mechanism 2 is working, liquid paraffin glue is sent into the dispensing mold 21 through the dispensing inlet. The vibrator 204 vibrates to make the glue evenly distributed and flow into the dispensing outlet 212 below the dispensing mold 21. The linear power source 25 drives the sealing plate 27, the clamping plate 28, and the glue plug 29 to descend. The glue plug 29 pushes the glue in the dispensing outlet 212 evenly out through the dispensing needle 203 and injects it into the lower inner cylinder to complete the dispensing and sealing. After the dispensing is completed, the linear power source 25 resets, and the glue plug 29 descends to seal the dispensing outlet 212 and the dispensing needle 203 to prevent leakage. The rubber stopper 29 is inserted into the mounting hole 281 through the inwardly recessed groove. The rubber stopper 29 itself can be squeezed and deformed, thus locking into the mounting hole 281 and preventing it from falling off after installation. Example

[0022] like Figure 5 As shown, this embodiment provides an inner cylinder dispensing and sealing device. The difference from embodiment 1 is that it also includes an inner cylinder conveying line 4, a lifting mechanism 43, and a frame 3 for placing the inner cylinder dispensing mechanism 2. A tray 41 is placed on the inner cylinder conveying line 4, and the tray 41 is provided with positioning holes for placing the inner cylinder. The inner cylinder conveyor line 4 is equipped with a blocking positioner 42 and a position sensor; The lifting mechanism 43 is equipped with a lifting cylinder, a guide column, and a lifting plate; The lifting plate is connected to the output end of the lifting cylinder; The guide column is installed on the lower surface of the lifting plate and cooperates with the guide ring set on the 4th frame of the inner cylinder conveyor line; The inner cylinder conveyor line 4 passes through the frame 3 and is located below the inner cylinder dispensing mechanism 2.

[0023] In this embodiment, the inner cylinder conveyor line 4 is installed on a horizontal ground, located at the bottom of the frame 3, and runs through the front and rear directions of the frame 3, and is used to carry and transport the pallet 44 containing the inner cylinder; The inner cylinder conveyor line 4 adopts a motor-driven belt drive, which can realize continuous or intermittent conveying of the pallet 44; The blocking positioner 42 is installed inside the inner cylinder conveyor line 4 frame and consists of a blocking cylinder and a blocking block. When the pallet 44 is conveyed to this position, the blocking cylinder drives the blocking block to rise, accurately blocking and positioning the pallet 44 at the dispensing station, ensuring the vertical alignment of the inner cylinder and the dispensing needle 203. The lifting mechanism 43 is installed below the inner cylinder conveyor line 4 and includes a lifting cylinder, guide columns, and a lifting plate. The lifting cylinder is installed on the bottom frame of the inner cylinder conveyor line 4, and its working end is connected to the lifting plate. The guide columns are installed around the lifting plate and cooperate with the guide rings on the frame of the inner cylinder conveyor line 4 to ensure the vertical accuracy of the lifting action. When the position sensor detects that the tray 41 is in place, the lifting cylinder drives the lifting plate to rise, lifting the tray 41 smoothly so that the upper end face of the inner cylinder is aligned and in contact with the lower end face of the dispensing needle 203, ensuring that the glue is accurately injected into the inner cylinder during dispensing. After dispensing is completed, the lifting mechanism 43 descends, the tray 41 falls back onto the inner cylinder conveyor line 4, the blocking positioner 42 retracts, the inner cylinder conveyor line 4 starts, and the inner cylinder with the dispensing and sealing completed is transported to the next process. At the same time, a new tray 41 enters the dispensing station to start the next cycle. Example

[0024] like Figure 1 As shown, this embodiment provides an inner cylinder dispensing and sealing device, which differs from Embodiment 1 in that it also includes a dispensing storage tank 1; The dispensing storage tank 1 is equipped with a stirrer and has a liquid level sensor installed inside; A heating and insulation layer is provided on the outside of the dispensing storage tank 1, and the heating and insulation layer is electrically connected to the temperature controller; The bottom of the glue storage tank 1 is provided with a glue outlet, and a ball valve 26 is installed at the glue inlet of the mold cover plate 22. The other end of the ball valve 26 is connected to the glue outlet at the bottom of the glue storage tank 1.

[0025] In this embodiment, the dispensing reservoir 1 stores the adhesive. A heating and insulation layer covers the outside of the dispensing reservoir 1 and is electrically connected to a temperature controller to heat and maintain the temperature of the adhesive. The temperature controller is installed on the outside of the dispensing reservoir 1 and can precisely control the heating temperature to ensure that the adhesive remains liquid and does not exceed the temperature limit. A stirrer is installed on the top of the dispensing reservoir 1 and consists of a stirring motor and a stirring paddle to prevent the adhesive from separating or solidifying. A liquid level sensor is installed inside the dispensing reservoir 1 and is electrically connected to the electrical control system to monitor the remaining amount of adhesive in real time. The dispensing port is located at the bottom of the dispensing reservoir 1 and is connected to a ball valve on the mold cover plate 22 through a pipeline. Example

[0026] like Figure 2 , 3 As shown, this embodiment provides an inner cylinder dispensing and sealing device. The difference from embodiment 1 is that it also includes a gantry frame 201, a limiting seat 23 for quick disassembly and quick assembly of the dispensing mold 21. The limiting seat 23 has two rows arranged in parallel. The opposite side of the limiting seat 23 is provided with a through guide groove along the length direction. The limiting seat 23 is provided with a threaded hole that communicates with the guide groove. The dispensing mold 21 has guide strips 211 on both sides of its exterior that are adapted to the guide groove; The threaded hole connects to the knob plunger 24. When the knob plunger 24 contacts the dispensing mold 21, the dispensing mold 21 is in a fixed state. When the knob plunger 24 does not contact the dispensing mold 21, the dispensing mold 21 is in a free state. The gantry frame 201 is installed on the upper surface of the two rows of limit seats 23; The linear power source 25 is fixed on the gantry 201 with the output end facing downwards.

[0027] In this embodiment, the gantry 201 provides a foundation for the installation of the linear power source 25; When installing the dispensing mold 21, the dispensing mold 21 slides directly into the guide groove of the limiting seat 23 through the guide bar 211, and the knob plunger 24 is locked into the threaded hole. The knob plunger 24 is used for quick positioning and locking of the dispensing mold 21. When it is necessary to disassemble the dispensing mold 21, the knob plunger 24 is loosened and the dispensing mold 21 can be taken out.

[0028] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An inner cylinder dispensing and sealing device, characterized in that: Includes an inner cylinder dispensing mechanism (2), wherein the inner cylinder dispensing mechanism (2) is provided with, A dispensing mold (21) is provided with a plurality of dispensing outlets (212) at the bottom of the dispensing mold (21), and dispensing needles (203) are installed at the dispensing outlets (212). The mold cover plate (22) cooperates with the dispensing mold (21) and is provided with a dispensing inlet for the glue to enter; The sealing plate (27) is located in the space formed by the dispensing mold (21) and the mold cover plate (22) and is driven by a vertical linear power source (25). A card plate (28) is connected to the sealing plate (27) and located below the sealing plate (27). The card plate (28) is provided with a plurality of mounting holes (281). The mounting holes (281) engage with rubber plugs (29). The rubber plugs (29) are provided with recessed grooves. The shape of the dispensing outlet (212) is adapted to the end shape of the glue stopper (29).

2. The inner cylinder dispensing and sealing device according to claim 1, characterized in that: It also includes an inner cylinder conveyor line (4), on which a tray (41) is placed, and the tray (41) is provided with positioning holes for placing the inner cylinder.

3. The inner cylinder dispensing and sealing device according to claim 2, characterized in that: The inner cylinder conveyor line (4) is equipped with a blocking locator (42) and a position sensor.

4. The inner cylinder dispensing and sealing device according to claim 3, characterized in that: It also includes a lifting mechanism (43), which is provided with a lifting cylinder, a guide column, and a lifting plate; The lifting plate is connected to the output end of the lifting cylinder. The guide column is installed on the lower surface of the lifting plate and cooperates with the guide ring set on the frame of the inner cylinder conveyor line (4).

5. The inner cylinder dispensing and sealing device according to claim 2, characterized in that: It also includes a frame (3) for placing the inner cylinder dispensing mechanism (2). The inner cylinder conveyor line (4) passes through the frame (3) and is located below the inner cylinder dispensing mechanism (2).

6. The inner cylinder dispensing and sealing device according to claim 1, characterized in that: It also includes glued storage tanks (1); The dispensing storage tank (1) is equipped with a stirrer and has a liquid level sensor inside; A heating and insulation layer is provided on the outside of the dispensing storage tank (1), and the heating and insulation layer is electrically connected to the temperature controller; The bottom of the glue storage tank (1) is provided with a glue outlet, and a ball valve (26) is installed at the glue inlet of the mold cover plate (22). The other end of the ball valve (26) is connected to the glue outlet at the bottom of the glue storage tank (1).

7. The inner cylinder dispensing and sealing device according to claim 1, characterized in that: It also includes a limiting seat (23) for quick disassembly and quick assembly of the dispensing mold (21). The limiting seat (23) has two rows arranged in parallel. The limiting seat (23) has a through guide groove on one side along the length direction and a threaded hole that communicates with the guide groove. The dispensing mold (21) has guide strips (211) on both sides of its outer side that are adapted to the guide groove. The threaded hole connects to the knob plunger (24). When the knob plunger (24) contacts the dispensing mold (21), the dispensing mold (21) is in a fixed state. When the knob plunger (24) does not contact the dispensing mold (21), the dispensing mold (21) is in a free state.

8. The inner cylinder dispensing and sealing device according to claim 7, characterized in that: It also includes a gantry (201) which is mounted on the upper surface of the two rows of limit seats (23); The linear power source (25) is fixed on the gantry (201) with the output end facing downwards.

9. The inner cylinder dispensing and sealing device according to claim 1, characterized in that: It also includes a vibrator (204) installed on the surface of the mold cover plate (22).

10. The inner cylinder dispensing and sealing device according to claim 1, characterized in that: The gap between the dispensing mold (21) and the mold cover plate (22) is sealed by a sealing strip (202).

Images