Detonator bottom cover assembly machine

Abstract

This invention discloses a detonator bottom cover assembly machine, comprising a bottom cover loading robot, a bottom cover transfer mechanism, a bottom cover rotation mechanism, a core mold conveyor line, a bottom cover unloading robot, and a bottom cover pressing mechanism. The bottom cover transfer mechanism includes a platform conveyor line and a bottom cover platform disposed on the platform conveyor line. The bottom cover platform has multiple bottom cover placement slots for receiving bottom covers conveyed by the bottom cover loading robot. A window is provided in the central area of ​​the bottom surface of each placement slot. The platform conveyor line has a receiving position, an adjustment position, and an unloading position arranged sequentially. The bottom cover rotation mechanism is located at the adjustment position and includes a limiting frame, an adjustment frame, an adjustment lifting drive component, an adjustment lifting frame, and multiple sets of rotation drive components. The adjustment lifting drive component is disposed on the adjustment frame and connected to the adjustment lifting frame to drive the adjustment lifting frame to rise and fall. The rotation drive components include a rotation drive component and a rotating head. This detonator bottom cover assembly machine has high production efficiency.

Description

Technical Field

[0001] This invention relates to the field of detonator manufacturing equipment technology, and particularly to a detonator bottom cover assembly machine. Background Technology

[0002] A detonator, also known as a detonating charge, is used to detonate low-sensitivity explosives such as ammonium nitrate oil (ANFO), slurry explosives, and emulsion explosives, as well as other explosives without detonator sensitivity. The detonation principle of a detonator involves inserting a detonator or detonating cord into it to detonate the detonator, which then detonates the low-sensitivity explosive. The detonator amplifies the detonation wave.

[0003] Detonator core molds are used in the production process of detonators. Figure 1 A detonator core mold 100 is shown, comprising a core mold base plate and multiple core mold assemblies 200 disposed on the base plate. During the manufacturing process of the detonator, one step involves mounting a detonator base cover 300 onto the mandrel 2001 of the core mold assembly 200. The base cover 300 has multiple holes 3001. Since the holes 3001 need to allow the mandrel of the core mold assembly 200 to pass through, the holes on the base cover must align with the corresponding mandrels during the installation of the base cover onto the detonator core mold; otherwise, the base cover and the detonator core mold cannot be assembled. Furthermore, due to the presence of bosses 3002 and other structures on the base cover 300, the relative positions of the holes on the base cover in the horizontal plane are fixed. Existing technologies generally use visual inspection to detect the position of holes in the bottom cover, then rotate and adjust the bottom cover, and finally assemble the bottom cover onto the mandrel of the core mold assembly. The whole process is time-consuming, and the corresponding mechanism structure is relatively complex, resulting in a high manufacturing cost for the detonator bottom cover assembly machine. Summary of the Invention

[0004] The technical problem solved by this invention is to provide a high-efficiency detonator bottom cover assembly machine.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a detonator bottom cover assembly machine, comprising:

[0006] A bottom cover feeding mechanism, wherein the bottom cover feeding mechanism includes a bottom cover feeding robot;

[0007] A bottom cover transfer mechanism includes a platform conveyor line and a bottom cover platform disposed on the platform conveyor line. The bottom cover platform is provided with a plurality of bottom cover placement slots for receiving bottom covers conveyed by the bottom cover loading robot. A window is provided in the central area of ​​the bottom surface of the bottom cover placement slot. The platform conveyor line has a receiving position, an adjustment position and a unloading position arranged in sequence.

[0008] A bottom cover rotation mechanism is provided at the adjustment position. The bottom cover rotation mechanism includes a limiting frame, an adjustment frame, an adjustment lifting drive component, an adjustment lifting frame, and multiple sets of rotation drive components. The adjustment lifting drive component is provided on the adjustment frame and connected to the adjustment lifting frame to drive the adjustment lifting frame to rise and fall. The rotation drive components include a rotation drive component and a rotating head. The rotation drive component is provided on the adjustment lifting frame and connected to the rotating head to drive the rotating head to rotate. The rotating head is located below the platform conveyor line. The top of the rotating head is provided with multiple elastic pins. The elastic pins are retractable in the vertical direction. The limiting frame has several sets of abutment structures. The abutment structure includes two abutment blocks arranged opposite each other with a clearance gap between the two abutment blocks. The abutment blocks are located above the platform conveyor line. The elastic pins are set corresponding to the clearance gap. The limiting frame is provided with a light detection sensor. The light emitted by the light detection sensor is directed towards the clearance gap.

[0009] A core mold conveyor line, wherein the core mold conveyor line is used to convey the detonator core mold;

[0010] Bottom cover unloading robot, used to transfer the bottom cover on the bottom cover platform at the unloading position to the mandrel of the detonator core mold;

[0011] A bottom cover pressing mechanism is used to perform secondary pressing on the bottom cover that is sleeved on the mandrel of the detonator core mold.

[0012] The beneficial effects of this invention are as follows: The detonator bottom cover assembly machine has a novel structure. Adjusting the holes on the bottom cover requires no visual inspection; a purely mechanical structure combined with a light detection sensor can adjust the bottom cover to the preset position, which improves production efficiency. Furthermore, the absence of visual inspection equipment also helps control the manufacturing cost of the detonator bottom cover assembly machine. The bottom cover is assembled with the cylindrical body through a secondary pressing process, which improves the assembly quality of the bottom cover and reduces the production defect rate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the detonator core mold;

[0015] Figure 2 A schematic diagram of the structure of the detonator bottom cover assembly machine;

[0016] Figure 3 This is a schematic diagram of the bottom cover rotation mechanism in the detonator bottom cover assembly machine.

[0017] Explanation of icon numbers:

[0018] 1. Bottom cover feeding mechanism; 11. Bottom cover feeding robot; 12. Bottom cover vibrating feeding assembly; 121. Bottom cover vibrating plate; 122. Bottom cover conveyor; 13. Bottom cover pushing assembly; 14. Bottom cover variable pitch plate; 141. Bottom cover temporary storage slot;

[0019] 2. Bottom cover transfer mechanism; 21. Platform conveyor line; 22. Bottom cover platform; 23. Bottom cover placement trough;

[0020] 3. Bottom cover rotation mechanism; 31. Limiting frame; 311. Support block; 312. Clearance gap; 313. Light detection sensor; 32. Adjusting frame; 33. Adjusting lifting drive component; 34. Adjusting lifting frame; 351. Rotation drive component; 352. Rotating head; 353. Elastic pin;

[0021] 4. Core mold conveyor line;

[0022] 5. Bottom cover unloading robot;

[0023] 6. Bottom cover pressing mechanism; 61. Pressing mounting plate; 62. Pressing drive component; 63. Pressing frame;

[0024] 7. Lifting mechanism;

[0025] 100. Detonator core mold; 200. Core mold assembly; 2001. Mandrel; 300. Bottom cover; 3001. Hole; 3002. Boss. Detailed Implementation

[0026] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of the present invention involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0030] Furthermore, if the meaning of "and / or" appears throughout the text, it refers to three parallel solutions. For example, "and / or" includes solution 1, solution 2, and solution 3, which simultaneously satisfy the above conditions. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] Example 1

[0033] Please refer to Figure 2 and Figure 3Embodiment 1 of the present invention is: a detonator bottom cover assembly machine, including a bottom cover feeding mechanism 1, a bottom cover transfer mechanism 2, a bottom cover rotation mechanism 3, a core mold conveying line 4, a bottom cover unloading robot 5, and a bottom cover pressing mechanism 6. The bottom cover feeding mechanism 1 includes a bottom cover feeding robot 11; the bottom cover transfer mechanism 2 includes a platform conveying line 21 and a bottom cover platform 22 disposed on the platform conveying line 21. The bottom cover platform 22 is provided with a plurality of bottom cover placement slots 23. The bottom cover placement slots 23 are used to receive the bottom covers conveyed by the bottom cover feeding robot 11. The bottom surface of the bottom cover placement slot 23 is... The central area is equipped with a window. The platform conveyor line 21 has a receiving position, an adjustment position, and a unloading position arranged sequentially. The bottom cover rotation mechanism 3 is located at the adjustment position. The bottom cover rotation mechanism 3 includes a limiting frame 31, an adjustment frame 32, an adjustment lifting drive component 33, an adjustment lifting frame 34, and multiple sets of rotation drive components. The adjustment lifting drive component 33 is located on the adjustment frame 32 and connected to the adjustment lifting frame 34 to drive the adjustment lifting frame 34 to rise and fall. The rotation drive components include a rotation drive component 351 and a rotating head 352. The rotation drive component 351 is located on the adjustment lifting frame 351. 4. The rotating head 352 is connected to the platform conveyor line 21 to drive the rotating head 352 to rotate. The rotating head 352 is located below the platform conveyor line 21. The top of the rotating head 352 is provided with multiple elastic pins 353. The elastic pins 353 are retractable in the vertical direction. The limiting frame 31 has several sets of abutment structures. The abutment structure includes two abutment blocks 311 arranged opposite each other, and a clearance gap 312 is formed between the two abutment blocks 311. The clearance gap 312 is used to avoid the upward protrusion structure on the bottom cover. The abutment blocks 311 are located above the platform conveyor line 21. A flexible pin 353 is provided corresponding to the clearance gap 312. A light detection sensor 313 is provided on the limiting frame 31, and the emitted light of the light detection sensor 313 is directed towards the clearance gap 312. The core mold conveyor line 4 is used to convey the detonator core mold. The bottom cover unloading robot 5 is used to transfer the bottom cover on the bottom cover carrier 22 at the unloading position to the mandrel on the detonator core mold. The bottom cover pressing mechanism 6 is provided on the core mold conveyor line 4, and the bottom cover pressing mechanism 6 is used to perform secondary pressing on the bottom cover sleeved on the mandrel of the detonator core mold. The bottom cover carrier 22 receives the bottom cover conveyed by the bottom cover loading robot 11 at the receiving position.

[0034] The adjusting lifting drive component 33 can be a linear cylinder, an electric push rod, etc.; the rotating drive component 351 can be a motor, a rotary cylinder, etc.

[0035] Specifically, the resilient pin 353 includes a resilient element and a pin element. The resilient element contacts the pin element and the rotating head 352, and the pin element should be adapted to fit a hole on the bottom cover. The resilient element may be a spring, compression spring, spring washer, etc.

[0036] The bottom cover feeding mechanism 1 further includes a bottom cover vibration feeding assembly 12, a bottom cover pushing assembly 13, and a bottom cover pitch changing assembly. The bottom cover pitch changing assembly includes a bottom cover pitch changing drive and a bottom cover pitch changing disk 14. The bottom cover pitch changing drive is connected to the bottom cover pitch changing disk 14 to drive the bottom cover pitch changing disk 14 to move linearly. The bottom cover pitch changing disk 14 is provided with a plurality of bottom cover temporary storage slots 141, and the plurality of bottom cover temporary storage slots 141 are arranged in at least one row. The bottom cover temporary storage slots 141 are connected to the peripheral wall of the bottom cover pitch changing disk 14 to form a bottom cover inlet. The bottom cover pushing assembly 13 is used to push the bottom cover located at the output end of the bottom cover vibration feeding assembly 12 into the bottom cover temporary storage slot 141 through the bottom cover inlet. The bottom cover feeding robot 11 is used to transfer the bottom cover in the bottom cover temporary storage slot 141 to the bottom cover placement slot 23. The bottom cover vibrating feeding assembly 12 includes a connected bottom cover vibrating plate 121 and a bottom cover conveyor 122. The bottom cover pushing assembly 13 pushes each bottom cover transported to the end of the bottom cover conveyor 122 into each bottom cover temporary storage slot 141 of the bottom cover pitch changing plate 14, thereby completing the pitch changing of multiple bottom covers so that the bottom cover feeding robot 11 can grasp them. It is easy to understand that the bottom cover pitch changing drive drives the bottom cover pitch changing plate 14 to move in a stepping manner. The bottom cover pitch changing drive can be a stepper motor or the like.

[0037] To improve feeding efficiency, in this embodiment, there are two bottom cover vibration feeding components 12 and two bottom cover pushing components 13. The bottom cover vibration feeding components 12 and the bottom cover pushing components 13 correspond one-to-one. The bottom cover variable pitch disk 14 has two rows of bottom cover temporary storage slots 141. The two bottom cover pushing components 13 are located on both sides of the bottom cover variable pitch disk 14.

[0038] In this embodiment, the light detection sensor 313 is disposed on the supporting block 311. The light emission path of the light detection sensor 313 is perpendicular to the driving direction of the supporting block 311 and the adjusting lifting drive 33. The light detection sensor 313 detects whether the protrusion on the bottom cover is located in a preset position. The light detection sensor 313 may be a through-beam light sensor.

[0039] When viewed from above, the bottom cover platform 22 located in the adjustment position is positioned such that the elastic pin 353 on the rotating head 352 is within the window area. In other words, the top of the pin can pass through the window and rotate around the rotation axis of the rotating head 352 under the drive of the rotating head 352, without interfering with the bottom cover platform 22.

[0040] In one or more embodiments, when viewed from above the bottom cover platform 22 located in the adjustment position, the rotating head 352 is within the window area, that is, the top of the rotating head 352 can pass through the window and lift the bottom cover in the bottom cover placement slot 23.

[0041] To improve the operational stability of the detonator bottom cover assembly machine, the machine further includes a lifting mechanism 7 mounted on the core mold conveyor line 4. The lifting mechanism 7 includes a lifting mounting plate, a lifting plate, and a lifting drive component. Optionally, the lifting mounting plate is connected to the core mold conveyor line 4, and the lifting drive component connects the lifting mounting plate and the lifting plate. The bottom cover unloading robot 5 transfers the bottom cover to the mandrel on the detonator core mold located on the lifting plate. Preferably, the lifting plate is also provided with positioning pins for engaging with positioning holes on the detonator core mold.

[0042] The bottom cover pressing mechanism 6 includes a pressing mounting plate 61, a pressing drive component 62, and a pressing frame 63. The pressing drive component 62 connects the pressing mounting plate 61 and the pressing frame 63 to drive the pressing frame 63 to rise and fall. The pressing frame 63 is located above the core mold conveying line 4. Specifically, the pressing frame 63 includes several sets of pressing structures composed of two pressing strips. A clearance gap is formed between the two pressing strips in the pressing structure. The two pressing strips in the pressing structure respectively press against both sides of the top surface of the bottom cover, which is sleeved on the core shaft of the detonator core mold. In this way, the bottom cover pressing mechanism 6 can be used for both detonator core molds with two core shafts and detonator core molds with three core shafts, enhancing the versatility of the bottom cover pressing mechanism 6.

[0043] The working process of this explosive device bottom cover assembly machine is briefly described as follows:

[0044] The bottom cover loading robot places the gripped bottom cover onto the bottom cover platform. The platform conveyor moves the platform to the adjustment position, and then the adjusting lifting drive causes the adjusting lifting frame to rise. The rotating head passes through the window and lifts the bottom cover in the placement slot, causing the upper part of the bottom cover to contact the bottom surface of the holding block. Simultaneously, the top surface of the pin contacts the bottom surface of the bottom cover. When the hole on the bottom cover misaligns with the corresponding pin, the pin retracts into the rotating head, compressing the elastic element. The rotation drive causes the rotating head to rotate one revolution. During this rotation, the hole on the bottom cover aligns with the corresponding pin, the elastic element recovers its deformation, and the pin inserts into the corresponding hole in the bottom cover. The head continues to rotate, causing the bottom cover to rotate, thus rotating the bottom cover to the initial position. Then, based on the detection result of the light detection sensor, the rotary drive selects whether to continue driving the rotating head to rotate, thereby completing the adjustment of the bottom cover. Taking a bottom cover with two holes as an example, when the bottom cover is rotated to the initial position, if the detection path of the light detection sensor is not blocked by the protrusion on the bottom cover, the rotary drive continues to drive the rotating head to rotate 180°, so that the bottom cover is rotated to the preset position. When the detection path of the light detection sensor is blocked by the protrusion on the bottom cover, the rotary drive remains stopped. At this time, the initial position of the bottom cover is the preset position.

[0045] After all the bottom covers on the bottom cover platform have been adjusted, the platform conveyor line moves the bottom cover platform to the unloading position, ready for the bottom cover unloading robot to unload.

[0046] When the detonator core mold with the bottom cover fitted on the core shaft is transferred to the working position of the bottom cover pressing mechanism, the bottom cover pressing mechanism performs a secondary pressing on the bottom cover fitted on the core shaft of the detonator core mold.

[0047] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A detonator bottom cover assembly machine, characterized in that: include A bottom cover feeding mechanism, wherein the bottom cover feeding mechanism includes a bottom cover feeding robot; A bottom cover transfer mechanism includes a platform conveyor line and a bottom cover platform disposed on the platform conveyor line. The bottom cover platform is provided with a plurality of bottom cover placement slots for receiving bottom covers conveyed by the bottom cover loading robot. A window is provided in the central area of ​​the bottom surface of the bottom cover placement slot. The platform conveyor line has a receiving position, an adjustment position and a unloading position arranged in sequence. A bottom cover rotation mechanism is provided at the adjustment position. The bottom cover rotation mechanism includes a limiting frame, an adjustment frame, an adjustment lifting drive component, an adjustment lifting frame, and multiple sets of rotation drive components. The adjustment lifting drive component is provided on the adjustment frame and connected to the adjustment lifting frame to drive the adjustment lifting frame to rise and fall. The rotation drive components include a rotation drive component and a rotating head. The rotation drive component is provided on the adjustment lifting frame and connected to the rotating head to drive the rotating head to rotate. The rotating head is located below the platform conveyor line. The top of the rotating head is provided with multiple elastic pins. The elastic pins are retractable in the vertical direction. The limiting frame has several sets of abutment structures. The abutment structure includes two abutment blocks arranged opposite each other with a clearance gap between the two abutment blocks. The abutment blocks are located above the platform conveyor line. The elastic pins are set corresponding to the clearance gap. The limiting frame is provided with a light detection sensor. The light emitted by the light detection sensor is directed towards the clearance gap. A core mold conveyor line, wherein the core mold conveyor line is used to convey the detonator core mold; Bottom cover unloading robot, used to transfer the bottom cover on the bottom cover platform at the unloading position to the mandrel of the detonator core mold; A bottom cover pressing mechanism is provided on the core mold conveying line. The bottom cover pressing mechanism is used to perform secondary pressing on the bottom cover that is sleeved on the core shaft of the detonator core mold.

2. The detonator bottom cover assembly machine according to claim 1, characterized in that: The bottom cover feeding mechanism further includes a bottom cover vibration feeding component, a bottom cover pushing component, and a bottom cover pitch changing component. The bottom cover pitch changing component includes a bottom cover pitch changing drive and a bottom cover pitch changing disk. The bottom cover pitch changing drive is connected to the bottom cover pitch changing disk to drive the bottom cover pitch changing disk to move linearly. The bottom cover pitch changing disk is provided with multiple bottom cover temporary storage slots, and the multiple bottom cover temporary storage slots are arranged in at least one row. The bottom cover temporary storage slots are connected to the peripheral wall of the bottom cover pitch changing disk to form a bottom cover inlet. The bottom cover pushing component is used to push the bottom cover located at the output end of the bottom cover vibration feeding component into the bottom cover temporary storage slot through the bottom cover inlet. The bottom cover feeding robot is used to transfer the bottom cover in the bottom cover temporary storage slot to the bottom cover placement slot.

3. The detonator bottom cover assembly machine according to claim 2, characterized in that: The bottom cover vibrating feeding assembly includes a connected bottom cover vibrating plate and a bottom cover conveyor. The bottom cover pushing assembly pushes the bottom covers transported to the end of the bottom cover conveyor to each bottom cover temporary storage slot of the bottom cover variable pitch plate.

4. The detonator bottom cover assembly machine according to claim 1, characterized in that: The resilient pin includes a resilient element and a pin element, wherein the resilient element contacts the pin element and the rotating head.

5. The detonator bottom cover assembly machine according to claim 1, characterized in that: The light detection sensor is mounted on the support block, and the light emission path of the light detection sensor is perpendicular to the support block and the driving direction of the adjustment and lifting drive.

6. The detonator bottom cover assembly machine according to claim 1, characterized in that: When viewed from above, the bottom cover platform located in the adjustment position is within the window area, and the elastic pin on the rotating head is within the window area.

7. The detonator bottom cover assembly machine according to claim 6, characterized in that: When viewed from above, the bottom cover platform located in the adjustment position is within the window area.

8. The detonator bottom cover assembly machine according to claim 1, characterized in that: It also includes a lifting mechanism located on the core mold conveying line. The lifting mechanism includes a lifting mounting plate, a lifting plate and a lifting drive component. The lifting drive component connects the lifting mounting plate and the lifting plate. The bottom cover unloading robot transfers the bottom cover to the mandrel on the detonator core mold located on the lifting plate.

9. The detonator bottom cover assembly machine according to claim 1, characterized in that: The bottom cover pressing mechanism includes a pressing mounting plate, a pressing drive component, and a pressing frame. The pressing drive component connects the pressing mounting plate and the pressing frame to drive the pressing frame to rise and fall.

10. The detonator bottom cover assembly machine according to claim 9, characterized in that: The pressure frame includes several sets of pressing structures composed of two pressure strips, with an air gap formed between the two pressure strips in the pressing structure.

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