Continuous automatic weighing device for detonating explosive raw materials
The continuous automatic weighing device for explosive raw materials has enabled automated weighing and addition of raw materials, solving the safety hazards and inefficiency problems caused by manual operation, and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520541596.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-26
AI Technical Summary
In the current production of explosives, the weighing of raw materials requires manual intervention, which poses significant safety hazards and results in low production efficiency.
The device employs a continuous automatic weighing system for explosive raw materials, including a rotatable turntable and a robotic arm. The mechanical claw automatically grasps and flips the material cylinder, and combined with a metering device, it realizes automatic weighing of materials and direct addition to the ball mill jar, avoiding manual operation.
It improves production efficiency, avoids frequent entry of operators into the operating room, eliminates dust exposure, ensures accurate material addition, and improves product quality.
Smart Images
Figure CN223940368U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of industrial detonator production, specifically relating to a continuous automatic weighing device for detonating explosive raw materials. Background Technology
[0002] Detonating cords are characterized by their resistance to electrical shocks, preventing accidental detonation under stray currents and electrostatic induction fields. They are a type of high-performance detonating device and are widely used in engineering blasting around the world.
[0003] The detonating charge is the energy source for the detonating cord. It is a thin layer of explosive mixture coated on the inner wall of a plastic tube, composed of four materials: high explosives of different particle sizes, aluminum powder, and additives. The manufacturing process of the detonating charge is as follows: First, the four materials need to be weighed according to the specified ratio. Then, they are added separately to a ball mill jar containing conductive rubber balls for mixing. After sieving, they are placed in a box for storage.
[0004] For a long time, raw material weighing has mostly relied on manual weighing using platform scales. While companies have replaced manual weighing with automated mechanical weighing to reduce dust exposure, in actual production, frequent manual entry into the operating room is still required to retrieve materials to be weighed and add them one by one to the grinding jar. This not only results in low production efficiency but also fails to completely eliminate dust exposure for operators. Utility Model Content
[0005] The purpose of this invention is to provide a continuous automatic weighing device for raw materials of detonating explosives, which solves the problem that manual intervention is required in the raw material weighing process of existing detonating explosives production, posing a significant safety hazard.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a continuous automatic weighing device for explosive raw materials, including a base and a support. A turntable is rotatably mounted on the base, and multiple material cylinders are mounted on the turntable. The support is arranged on the side of the base, a robotic arm is mounted on the top of the support, a robotic claw is mounted at the end of the robotic arm, a rotating shaft is rotatably mounted on the side of the support, a tray is mounted on the rotating shaft, a grinding ball container is placed below the tray, and a measuring device is mounted at the bottom of the tray.
[0007] The technical solution of this utility model also has the following characteristics:
[0008] The base is equipped with a first motor, the drive end of which is connected to a support shaft, and the turntable is located on top of the support shaft.
[0009] The turntable has multiple grooves, the shape of which matches the material cylinder.
[0010] There are four grooves, arranged at equal angles.
[0011] A second motor is installed on the side of the bracket, and one end of the rotating shaft is located on the drive end of the second motor.
[0012] A funnel support is provided on the side of the support, and a funnel is provided in the funnel support. The funnel is located between the tray and the grinding ball jar.
[0013] A vibrator is installed on the rotating shaft.
[0014] Both the first and second motors are stepper motors.
[0015] The beneficial effects of this utility model are: (1) The continuous automatic weighing device for explosive raw materials of this utility model adopts a rotatable circular turntable for automatic feeding, which avoids operators from frequently entering the operating room to change materials, and greatly improves production efficiency; (2) After the tray is flipped, the continuous automatic weighing device for explosive raw materials of this utility model can be continuously vibrated for several seconds by a vibrator to ensure that the material is completely emptied, thereby preventing weighing errors from affecting product quality; (3) The continuous automatic weighing device for explosive raw materials of this utility model has a funnel installed under the tray, and the weighed material can be directly added to the ball mill jar, which can prevent personnel from coming into contact with dust. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a continuous automatic weighing device for explosive raw materials according to this utility model;
[0017] Figure 2 This is a schematic diagram of the assembly of the turntable in a continuous automatic weighing device for explosive raw materials according to this utility model.
[0018] In the diagram, 1. base, 2. support shaft, 3. turntable, 4. material cylinder, 5. mechanical claw, 6. robotic arm, 7. tray, 8. metering device, 9. funnel, 10. grinding ball jar, 11. rotating shaft, 12. funnel support, 13. second motor, 14. support, 15. first motor, 16. reducer, 17. coupling. Detailed Implementation
[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] Example 1
[0021] like Figure 1As shown, the present invention discloses a continuous automatic weighing device for explosive raw materials, comprising a base 1 and a support 14. A turntable 3 is rotatably mounted on the base 1, and multiple material cylinders 4 are mounted on the turntable 3. The support 14 is arranged on the side of the base 1, and a mechanical arm 6 is mounted on the top of the support 14. A mechanical claw 5 is mounted at the end of the mechanical arm 6. A rotating shaft 11 is rotatably mounted on the side of the support 14, and a tray 7 is mounted on the rotating shaft 11. A grinding ball jar 10 is placed below the tray 7, and a measuring device 8 is mounted at the bottom of the tray 7.
[0022] The explosive charge is made from four components: crude RDX, fine RDX, aluminum powder, and additives. Two components are stored in four separate containers 4.
[0023] The specific operating steps of the automatic weighing device for explosive raw materials of this utility model are as follows:
[0024] Before starting work, the manual laborers place the cylinder 4 containing coarse black oxonium, ultrafine black oxonium, aluminum powder and additives into the four stations on the turntable 3 in sequence.
[0025] The turntable 3 rotates for the first time until the cylinder 4 containing coarse black pyroxene reaches the designated position and then stops. At this time, the robotic arm 6 rotates to the position of the cylinder 4, grabs the cylinder 4 containing coarse black pyroxene with the gripper 5, and then rotates it to the set position above the tray 7. The robotic claw 5 flips the cylinder 4 to add material to the grinding jar 10. The material is added to the grinding jar 10 after the predetermined weight is reached, as determined by the value displayed by the meter 8. Then the material cylinder 4 is reset, and the robotic arm 6 rotates back to the position where the coarse black pyroxene is placed and puts the cylinder 4 into the corresponding position on the turntable 3. After that, the rotating shaft 11 drives the tray 7 to rotate 180°, and the coarse black pyroxene is poured into the grinding jar 10. Finally, the rotating shaft 11 drives the tray 7 to reset.
[0026] The turntable 3 is controlled to rotate a second time until the cylinder 4 containing fine black oxalate rotates to the designated position and then stops. At this time, the robotic arm 6 rotates to the position of the cylinder 4, grabs the cylinder 4 containing fine black oxalate through the gripper 5, and then rotates it to the set position above the tray 7. The robotic claw 5 flips the cylinder 4 to add material to the grinding jar 10. The material feeding stops when the predetermined weight is reached, based on the value displayed by the meter 8. After that, the cylinder 4 is reset, and the robotic arm 6 rotates back to the position where the fine black oxalate is placed, placing the cylinder 4 into the corresponding position on the turntable 3. Then, the rotating shaft 11 drives the tray 7 to rotate 180°, and the fine black oxalate is poured into the grinding jar 10. Finally, the rotating shaft 11 drives the tray 7 to reset.
[0027] The turntable 3 is controlled to rotate for the third time until the material cylinder 4 containing aluminum powder rotates to the designated position and then stops. At this time, the robotic arm 6 rotates to the position of the material cylinder 4, grabs the material cylinder 4 containing aluminum powder with the gripper 5, and then rotates it to the set position above the tray 7. The robotic claw 5 flips the material cylinder 4 to add material to the grinding jar 10. The material feeding stops when the predetermined weight is reached, according to the value displayed by the meter 8. Then the material cylinder 4 is reset, and the robotic arm 6 rotates back to the work position where the aluminum powder is placed and puts the material cylinder 4 into the corresponding position on the turntable 3. After that, the rotating shaft 11 drives the tray 7 to rotate 180°, and the aluminum powder is poured into the grinding jar 10. Finally, the rotating shaft 11 drives the tray 7 to reset.
[0028] The turntable 3 is controlled to rotate for the fourth time until the material cylinder 4 containing the additive rotates to the designated position and then stops. At this time, the robotic arm 6 rotates to the position of the material cylinder 4, grabs the material cylinder 4 containing the additive through the gripper 5, and then rotates it to the set position above the tray 7. After that, the robotic claw 5 flips the material cylinder 4 to add material to the grinding jar 10. The material feeding stops after the value displayed by the meter 8 is determined to have reached the predetermined weight. Then the material cylinder 4 is reset, and the robotic arm 6 rotates back to the position where the additive is placed and puts the material cylinder 4 into the corresponding position on the turntable 3. After that, the rotating shaft 11 drives the tray 7 to rotate 180°, and the additive is poured into the grinding jar 10. Finally, the rotating shaft 11 drives the tray 7 to reset.
[0029] After all four materials are added to the ball mill jar 10, the ball mill jar 10 is taken out and sent to the ball milling chamber, the lid is closed, and it is installed on the ball mill for mixing.
[0030] Example 2
[0031] like Figure 1 As shown in Embodiment 1, Embodiment 2 is a continuous automatic weighing device for explosive raw materials of this utility model, including a base 1 and a support 14. A turntable 3 is rotatably arranged on the base 1, and multiple material cylinders 4 are arranged on the turntable 3. The support 14 is arranged on the side of the base 1, and a mechanical arm 6 is arranged on the top of the support 14. A mechanical claw 5 is arranged at the end of the mechanical arm 6. A rotating shaft 11 is rotatably arranged on the side of the support 14. A tray 7 is arranged on the rotating shaft 11. A grinding ball can 10 is placed below the tray 7. A measuring device 8 is arranged at the bottom of the tray 7.
[0032] Combination Figure 2 Unlike Embodiment 1, in this Embodiment 2, a continuous automatic weighing device for explosive raw materials of this utility model is provided: a first motor 15 is provided on the base 1, the drive end of the first motor 15 is connected to the support shaft 2, and the turntable 3 is provided on the top of the support shaft 2.
[0033] The drive end of the first motor 15 is connected to a reducer 16. The drive end of the reducer 16 is connected to the support shaft 2 through a coupling 17. When the first motor 15 is started, the first motor 15 drives the support shaft 2 to rotate at a certain speed through the reducer 16, thereby realizing the rotation of the turntable 3 and finally sending the material cylinder 4 on it to the designated position.
[0034] Example 3
[0035] like Figure 1 and Figure 2 As shown in Embodiment 2, Embodiment 3, a continuous automatic weighing device for explosive raw materials of this utility model, includes a base 1 and a support 14. A turntable 3 is rotatably mounted on the base 1, and multiple material cylinders 4 are mounted on the turntable 3. The support 14 is arranged beside the base 1, and a robotic arm 6 is mounted on the top of the support 14. A robotic claw 5 is mounted at the end of the robotic arm 6. A rotating shaft 11 is rotatably mounted on the side of the support 14, and a tray 7 is mounted on the rotating shaft 11. A grinding ball jar 10 is placed below the tray 7, and a measuring device 8 is mounted at the bottom of the tray 7. A first motor 15 is mounted on the base 1, and the drive end of the first motor 15 is connected to a support shaft 2. The turntable 3 is mounted on top of the support shaft 2.
[0036] like Figure 2 As shown, unlike Embodiment 2, in Embodiment 3, a continuous automatic weighing device for explosive raw materials of this utility model has multiple grooves on the turntable 3, the shape of which matches the material cylinder 4.
[0037] The material cylinders 4 can be inserted into the corresponding grooves on the turntable 3, which can prevent them from shaking when rotating and ensure good stability.
[0038] Example 4
[0039] like Figure 1 and Figure 2 As shown in Example 4, similar to Example 3, this utility model provides a continuous automatic weighing device for explosive raw materials, including a base 1 and a support 14. A turntable 3 is rotatably mounted on the base 1, and multiple material cylinders 4 are mounted on the turntable 3. The support 14 is arranged beside the base 1, with a robotic arm 6 at its top and a robotic claw 5 at its end. A rotating shaft 11 is rotatably mounted on the side of the support 14, with a tray 7 mounted on the rotating shaft 11. A grinding ball jar 10 is placed below the tray 7, and a measuring device 8 is mounted at the bottom of the tray 7. A first motor 15 is mounted on the base 1, and the drive end of the first motor 15 is connected to a support shaft 2. The turntable 3 is located on top of the support shaft 2. The turntable 3 has multiple grooves, the shapes of which match the material cylinders 4.
[0040] Combination Figure 2Unlike Example 3, in Example 4, the number of grooves in the continuous automatic weighing device for explosive raw materials of this utility model is four, and they are arranged at equal angles.
[0041] With the four material cylinders 4 arranged at 90°, the first motor 15 only needs to rotate the same angle each time to send the corresponding material cylinder 4 to the designated position, making control more convenient.
[0042] Example 5
[0043] like Figure 1 and Figure 2 As shown in Example 4, similar to Example 3, this utility model provides a continuous automatic weighing device for explosive raw materials, including a base 1 and a support 14. A turntable 3 is rotatably mounted on the base 1, and multiple material cylinders 4 are mounted on the turntable 3. The support 14 is arranged beside the base 1, with a robotic arm 6 at its top and a robotic claw 5 at its end. A rotating shaft 11 is rotatably mounted on the side of the support 14, with a tray 7 mounted on the shaft 11. A grinding ball jar 10 is placed below the tray 7, and a measuring device 8 is located at the bottom of the tray 7. A first motor 15 is mounted on the base 1, and a support shaft 2 is connected to the drive end of the first motor 15. The turntable 3 is located on top of the support shaft 2. Multiple grooves are provided on the turntable 3, the shape of which matches the material cylinders 4. There are four grooves, arranged at equal angles.
[0044] like Figure 1 As shown, unlike Embodiment 4, in Embodiment 5, a continuous automatic weighing device for explosive raw materials of this utility model is provided with a second motor 13 on the side of the bracket 14, and one end of the rotating shaft 11 is provided on the drive end of the second motor 13.
[0045] Start the second motor 13, which drives the rotating shaft 11 to rotate, thereby realizing the flipping and resetting of the tray 7 on the rotating shaft 11.
[0046] Example 6
[0047] like Figure 1 and Figure 2As shown in Embodiment 5, Embodiment 6 presents a continuous automatic weighing device for explosive raw materials of this utility model, comprising a base 1 and a support 14. A turntable 3 is rotatably mounted on the base 1, and multiple material cylinders 4 are mounted on the turntable 3. The support 14 is arranged beside the base 1, with a robotic arm 6 mounted on its top and a robotic claw 5 at its end. A rotating shaft 11 is rotatably mounted on the side of the support 14, with a tray 7 mounted on the rotating shaft 11. A grinding ball jar 10 is placed below the tray 7, and a measuring device 8 is mounted at the bottom of the tray 7. A first motor 15 is mounted on the base 1, and a support shaft 2 is connected to the drive end of the first motor 15. The turntable 3 is mounted on top of the support shaft 2. Multiple grooves are provided on the turntable 3, the shape of which matches the material cylinders 4. There are four grooves, arranged at equal angles. A second motor 13 is mounted on the side of the support 14, and one end of the rotating shaft 11 is mounted on the drive end of the second motor 13.
[0048] like Figure 1 As shown, unlike Embodiment 5, in Embodiment 6, a continuous automatic weighing device for explosive raw materials of this utility model is provided with a funnel support 12 on the side of the support 14, and a funnel 9 is provided in the funnel support 12. The funnel 9 is located between the tray 7 and the grinding ball tank 10.
[0049] The upper end of the funnel 9 has a large opening and the lower end has a small opening. The upper large opening of the funnel 9 overlaps below the tray 7 to receive the falling raw materials. The lower end of the funnel 9 is connected to the opening of the grinding ball can 10, so that all the raw materials can be fed into the grinding ball can 10 without wasting raw materials, thereby ensuring that the explosive has good performance.
[0050] Example 7
[0051] like Figure 1 and Figure 2As shown in Example 6, Example 7 presents a continuous automatic weighing device for explosive raw materials, comprising a base 1 and a support 14. A turntable 3 is rotatably mounted on the base 1, and multiple material cylinders 4 are mounted on the turntable 3. The support 14 is arranged beside the base 1, with a robotic arm 6 at its top and a robotic claw 5 at its end. A rotating shaft 11 is rotatably mounted on the side of the support 14, with a tray 7 mounted on the shaft 11. A grinding ball jar 10 is placed below the tray 7, and a measuring device 8 is located at the bottom of the tray 7. A first motor 15 is mounted on the base 1, and a support shaft 2 is connected to the drive end of the first motor 15. The turntable 3 is positioned on top of the support shaft 2. Multiple grooves are provided on the turntable 3, the shapes of which match the material cylinders 4. There are four grooves, arranged at equal angles. A second motor 13 is mounted on the side of the support 14, and one end of the rotating shaft 11 is mounted on the drive end of the second motor 13. A funnel support 12 is provided on the side of the support 14, and a funnel 9 is provided in the funnel support 12. The funnel 9 is located between the tray 7 and the grinding ball jar 10.
[0052] like Figure 1 As shown, unlike Embodiment 6, in Embodiment 7, a vibrator is provided on the rotating shaft 11 in a continuous automatic weighing device for explosive raw materials of this utility model.
[0053] After the tray 7 is rotated 180°, the raw materials are poured into the grinding ball jar 10. At this time, the vibrator is started for a few seconds. The vibration shakes the raw materials attached to the tray 7 into the grinding ball jar 10. This avoids waste of raw materials and ensures that the weight of each component is accurate and does not affect the performance of the explosive.
[0054] Example 8
[0055] like Figure 1 and Figure 2As shown in Example 7, Example 8 presents a continuous automatic weighing device for explosive raw materials of this utility model, comprising a base 1 and a support 14. A turntable 3 is rotatably mounted on the base 1, and multiple material cylinders 4 are mounted on the turntable 3. The support 14 is arranged beside the base 1, with a robotic arm 6 mounted on its top and a robotic claw 5 at its end. A rotating shaft 11 is rotatably mounted on the side of the support 14, with a tray 7 mounted on the rotating shaft 11. A grinding ball jar 10 is placed below the tray 7, and a measuring device 8 is mounted at the bottom of the tray 7. A first motor 15 is mounted on the base 1, and a support shaft 2 is connected to the drive end of the first motor 15. The turntable 3 is mounted on top of the support shaft 2. Multiple grooves are provided on the turntable 3, the shape of which matches the material cylinders 4. There are four grooves, arranged at equal angles. A second motor 13 is mounted on the side of the support 14, and one end of the rotating shaft 11 is mounted on the drive end of the second motor 13. A funnel support 12 is provided on the side of the support 14, and a funnel 9 is provided in the funnel support 12. The funnel 9 is located between the tray 7 and the grinding ball jar 10. A vibrator is provided on the rotating shaft 11.
[0056] like Figure 1 As shown, unlike Embodiment 7, in Embodiment 8, the first motor 15 and the second motor 13 of this utility model are both stepper motors.
[0057] The first motor 15 and the second motor 13 are preferably stepper motors, which can precisely control the rotation angle.
[0058] Therefore, compared with the prior art, the present invention has the following advantages:
[0059] (1) The continuous automatic weighing device for explosive raw materials of this utility model adopts a rotatable circular turntable for automatic feeding, which avoids operators from frequently entering the operating room to change materials and greatly improves production efficiency.
[0060] (2) The continuous automatic weighing device for explosive raw materials of this utility model can continuously vibrate for several seconds after the tray is flipped to ensure that the material is completely poured out, thereby preventing weighing errors from affecting product quality.
[0061] (3) The continuous automatic weighing device for explosive raw materials of this utility model has a funnel installed under the tray, and the weighed material can be directly added into the ball mill jar, which can prevent personnel from coming into contact with dust.
Claims
1. A continuous automatic weighing device for explosive raw materials, characterized in that, Includes a base (1) and a support (14). A turntable (3) is rotatably mounted on the base (1), and multiple material cylinders (4) are mounted on the turntable (3). The support (14) is arranged on the side of the base (1). A mechanical arm (6) is mounted on the top of the support (14), and a mechanical claw (5) is mounted at the end of the mechanical arm (6). A rotating shaft (11) is rotatably mounted on the side of the support (14), and a tray (7) is mounted on the rotating shaft (11). A grinding ball jar (10) is placed below the tray (7), and a meter (8) is mounted at the bottom of the tray (7).
2. The continuous automatic weighing device for explosive raw materials according to claim 1, characterized in that, The base (1) is provided with a first motor (15), the drive end of the first motor (15) is connected to a support shaft (2), and the turntable (3) is provided on the top of the support shaft (2).
3. The continuous automatic weighing device for detonating explosive raw materials according to claim 2, characterized in that, The turntable (3) is provided with a plurality of grooves, the shape of which matches the material cylinder (4).
4. The continuous automatic weighing device for explosive raw materials according to claim 3, characterized in that, The number of grooves is four, and they are arranged at equal angles.
5. The continuous automatic weighing device for detonating explosive raw materials according to claim 2, characterized in that, The side of the bracket (14) is provided with a second motor (13), and one end of the rotating shaft (11) is provided on the drive end of the second motor (13).
6. The continuous automatic weighing device for detonating explosive raw materials according to claim 1, characterized in that, The side of the support (14) is provided with a funnel support (12), and a funnel (9) is provided in the funnel support (12). The funnel (9) is located between the tray (7) and the grinding ball jar (10).
7. The continuous automatic weighing device for detonating explosive raw materials according to claim 6, characterized in that, A vibrator is installed on the rotating shaft (11).
8. The continuous automatic weighing device for detonating explosive raw materials according to claim 5, characterized in that, Both the first motor (15) and the second motor (13) are stepper motors.