A foaming agent filling device capable of automatically adjusting a filling width

Abstract

The utility model relates to the field of civilian explosive production technology discloses a foaming agent filling device with automatic adjusting filling width, including height adjusting structure, the height adjusting structure includes support base plate, scissor arm, screw base, support mesa, support seat and lift adjusting screw rod. The utility model discloses through the rotation lift adjusting screw rod can drive screw base to carry out the translation horizontally, and screw base will drive scissor arm to unfold or contract simultaneously in the translation, thereby can adjust the height of support mesa and foaming agent filling structure whole, when the swing lever drops, the swing range of swing lever expands, and the coverage of foaming agent filling pipe is wide accordingly, and finally the filling width increases, and vice versa, the filling width reduces, the design can adjust the foaming agent filling width and match according to the width of the matrix on the cooling steel strip at any time, realizes the accuracy of foaming agent proportioning, guarantees the sensitization effect of explosive, improves explosive product quality.

Description

Technical Field

[0001] This utility model relates to the field of civil explosives production technology, and more specifically, to a foaming agent dispensing device with automatically adjustable dispensing width. Background Technology

[0002] In the production of civil explosives using the steel strip cooling process, the foaming agent injection device is a key piece of equipment to ensure the quality of explosives and production efficiency. Its core function is to accurately and evenly inject foaming agent into the explosive matrix on the cooled steel strip.

[0003] Currently, most domestic civil explosives manufacturers using steel strip cooling agents apply a fixed width of foaming agent during the application process. When production capacity decreases, some foaming agent may not be applied into the matrix, potentially affecting the foaming effect of the explosive and consequently impacting product quality. Therefore, this invention provides a foaming agent application device with an automatically adjustable application width to solve the aforementioned problem. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a foaming agent filling device with automatic adjustable filling width, which has the advantage of being able to adjust the foaming agent filling width at will within a certain range without stopping the machine during production.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a foaming agent dispensing device with automatically adjustable dispensing width, comprising: a driving structure, wherein the driving structure includes a fixed frame, a first connecting rod, a second connecting rod, a limiting rod, a first pulley and a second pulley, wherein both the first pulley and the second pulley are provided in two sets; A height adjustment structure, comprising a support base plate, a scissor arm, a threaded seat, a support platform, a support base, and a lifting adjustment screw, wherein the lower surface of the support base plate is fixedly connected to the upper surface of the fixed frame; A foaming agent filling structure includes a fixed seat, a rocker arm, a slide groove, a scale line, a foaming agent filling pipe and a foaming agent connecting pipe, wherein the fixed seat is installed on the upper surface of a support plate.

[0006] As a preferred embodiment of this utility model, a drive motor is installed at one end of the upper surface of the fixed frame, and a crank is fixedly connected to the output shaft of the drive motor. One end of the first connecting rod is connected to the internal bearing at the end of the crank away from the output shaft of the drive motor, and the other end of the first connecting rod is connected to the internal bearing at the end of the second connecting rod near the drive motor.

[0007] As a preferred technical solution of this utility model, the limiting rod is fixedly connected to the surface of one side of the middle position of the second connecting rod, and a support plate is fixedly connected to the surface of one side of the fixing frame. The two sets of first pulleys and second pulleys are respectively bearing connected to the inside of both ends of the support plate, and U-shaped grooves are opened at the wheel rims of the two sets of first pulleys.

[0008] As a preferred embodiment of this utility model, the lower surface of the second connecting rod is slidably attached to the inner wall of the two sets of U-shaped grooves, and the upper surface of the second connecting rod is slidably attached to the outer surface of the two sets of second pulleys.

[0009] As a preferred technical solution of this utility model, a first bearing and a second bearing are fixedly connected at the middle position of the upper surface of the support base plate, the support base is fixedly connected to the other end of the upper surface of the fixing frame, the lifting adjustment screw is connected to the inside of the support base, the first bearing and the second bearing, and a handwheel is provided at the end of the lifting adjustment screw away from the support base.

[0010] As a preferred technical solution of this utility model, both sides of the surface opposite to the support base plate and the support platform are fixedly connected to connecting plates. The upper and lower ends of the two sets of scissor arms are respectively hinged to the connecting plates corresponding to the support base plate and the support platform. A threaded seat is fixedly connected to the interior of the lower middle position of the scissor arm, and the lifting adjustment screw is threadedly connected to the interior of the threaded seat.

[0011] As a preferred technical solution of this utility model, a connecting rod is fixedly connected to the surface of one end of the fixed seat, and the connecting rod is connected to the internal bearing at the upper end of the swing rod. The sliding groove is opened inside the swing rod, the scale line is set on the surface of one side of the swing rod, the limiting rod is slidably inserted into the inside of the sliding groove, the foaming agent injection pipe is fixedly connected to the side wall of the swing rod, and the inside of the foaming agent injection pipe is connected to a foaming agent connecting pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a rotating lifting adjustment screw to drive the threaded seat to move laterally. Simultaneously, the threaded seat extends or retracts the scissor arm, allowing adjustment of the overall height of the support platform and the foaming agent filling structure. As the swing arm moves, the position of the limiting rod inside the slide groove changes. When the swing arm descends, its swing range expands, widening the coverage area of ​​the foaming agent filling pipe and ultimately increasing the filling width. Conversely, the filling width decreases. This design allows for real-time adjustment of the foaming agent filling width to match the width of the substrate on the cooling steel strip, ensuring accurate foaming agent ratios, guaranteeing explosive sensitization effects, and improving explosive product quality.

[0013] 2. This utility model restricts the position of the second connecting rod by setting two sets of first and second pulleys, so that the second connecting rod can only move laterally. This improves the stability when the limiting rod drives the swing arm and the foaming agent filling tube to swing. In addition, the setting of scale lines allows the operator to more intuitively observe the height of the swing arm and the foaming agent filling tube, thereby improving the accuracy of foaming agent filling width adjustment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the driving structure of this utility model; Figure 3 This is a schematic diagram of the height adjustment structure of this utility model; Figure 4 This is a partial exploded view of the height adjustment structure of this utility model; Figure 5 This is a schematic diagram of the foaming agent dispensing structure of this utility model in use.

[0015] In the diagram: 1. Drive structure; 11. Fixing frame; 12. Drive motor; 13. Crank; 14. First connecting rod; 15. Second connecting rod; 16. Limiting rod; 17. Support plate; 18. First pulley; 19. Second pulley; 2. Height adjustment structure; 21. Support base plate; 22. First bearing seat; 23. Second bearing seat; 24. Connecting plate; 25. Scissor arm; 26. Threaded seat; 27. Support platform; 28. Support base; 29. ​​Lifting adjustment screw; 3. Foaming agent filling structure; 31. Fixing base; 32. Swing rod; 33. Slide groove; 34. Scale line; 35. Foaming agent filling pipe; 36. Foaming agent connecting pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 5 As shown, this utility model provides a foaming agent dispensing device with automatically adjustable dispensing width, including: a drive structure 1, the drive structure 1 including a fixed frame 11, a first connecting rod 14, a second connecting rod 15, a limiting rod 16, a first pulley 18 and a second pulley 19, and the first pulley 18 and the second pulley 19 are each provided with two sets; The height adjustment structure 2 includes a support base plate 21, a scissor arm 25, a threaded seat 26, a support platform 27, a support seat 28, and a lifting adjustment screw 29. The lower surface of the support base plate 21 is fixedly connected to the upper surface of the fixed frame 11. The foaming agent filling structure 3 includes a fixed seat 31, a swing rod 32, a slide groove 33, a scale line 34, a foaming agent filling pipe 35 and a foaming agent connecting pipe 36. The fixed seat 31 is installed on the upper surface of the support plate 17.

[0018] The drive motor 12 is mounted on one end of the upper surface of the fixed frame 11, and a crank 13 is fixedly connected to the output shaft of the drive motor 12. One end of the first connecting rod 14 is connected to the internal bearing of the crank 13 away from the output shaft of the drive motor 12, and the other end of the first connecting rod 14 is connected to the internal bearing of the second connecting rod 15 near the drive motor 12.

[0019] By starting the drive motor 12, the crank 13 can be rotated. When the crank 13 rotates, it can drive the end of the first connecting rod 14 close to the drive motor 12 to make a circular motion with the hinge point of the crank 13. The end of the first connecting rod 14 away from the drive motor 12 will drive the second connecting rod 15 to make a horizontal reciprocating linear motion.

[0020] The limiting rod 16 is fixedly connected to the surface of one side of the middle position of the second connecting rod 15. The support plate 17 is fixedly connected to the surface of one side of the fixing frame 11. The two sets of first pulleys 18 and second pulleys 19 are respectively bearing connected to the inside of both ends of the support plate 17. The rims of the two sets of first pulleys 18 are provided with U-shaped grooves. The lower surface of the second connecting rod 15 slides against the inner wall of the two sets of U-shaped grooves, and the upper surface of the second connecting rod 15 slides against the outer surface of the two sets of second pulleys 19.

[0021] By setting up two sets of first pulleys 18 and second pulleys 19, the second connecting rod 15 can only move laterally, and there will be no wobbling or swinging during the translation process, thereby improving the stability of the limit rod 16 when it reciprocates.

[0022] The first bearing seat 22 and the second bearing seat 23 are fixedly connected to the middle position of the upper surface of the support base plate 21. The support seat 28 is fixedly connected to the other end of the upper surface of the fixed frame 11. The lifting adjustment screw 29 is connected to the inside of the support seat 28, the first bearing seat 22 and the second bearing seat 23 by a bearing. A handwheel is provided at the end of the lifting adjustment screw 29 away from the support seat 28.

[0023] The handwheel design allows operators to rotate the lifting adjustment screw 29 with less effort. The support base 28, the first shaft seat 22, and the second shaft seat 23 provide effective support and limit for the lifting adjustment screw 29, preventing it from swaying or shifting during rotation and thus effectively improving its stability.

[0024] Both sides of the support base plate 21 and the support platform 27 are fixedly connected to the connecting plates 24. The upper and lower ends of the two sets of scissor arms 25 are respectively hinged to the connecting plates 24 corresponding to the support base plate 21 and the support platform 27. The lower middle position of the scissor arm 25 is fixedly connected to the threaded seat 26. The lifting adjustment screw 29 is connected to the internal thread of the threaded seat 26.

[0025] Rotating the lifting adjustment screw 29 can drive the threaded seat 26 to move laterally. While moving, the threaded seat 26 will also cause the scissor arm 25 to extend or retract. When the scissor arm 25 extends, it will push the support platform 27 to move upward. When the scissor arm 25 retracts, it will pull the support platform 27 to move downward. When the support platform 27 moves, it will also drive the foaming agent filling structure 3 to move synchronously. The scissor arm 25 is made of 45 steel and has been quenched. The maximum load of a single scissor arm is not less than 50 kg, which is suitable for the weight requirements of the foaming agent filling structure.

[0026] Among them, a connecting rod is fixedly connected to the surface of one end of the fixed base 31, and the connecting rod is connected to the internal bearing at the upper end of the swing rod 32. The sliding groove 33 is opened inside the swing rod 32, the scale line 34 is set on the surface of one side of the swing rod 32, the limiting rod 16 is slidably inserted into the sliding groove 33, the foaming agent injection pipe 35 is fixedly connected to the side wall of the swing rod 32, and the foaming agent injection pipe 35 is connected to the foaming agent connecting pipe 36.

[0027] When the swing arm 32 moves, the position of the limiting rod 16 inside the slide groove 33 changes. When the swing arm 32 descends, its swing range expands, and the coverage area of ​​the foaming agent injection pipe 35 widens accordingly, ultimately increasing the injection width. When the swing arm 32 rises, its swing range shrinks, and the coverage area of ​​the foaming agent injection pipe 35 narrows accordingly, ultimately decreasing the injection width. The outer wall of the limiting rod 16 is coated with a polytetrafluoroethylene wear-resistant coating, and the inner wall of the slide groove 33 is coated with lithium-based grease. The grease is replenished every 30 days to reduce the friction between the limiting rod 16 and the slide groove 33. This reduces wear and tear, extending the service life of components to over 2000 hours. During adjustment, the adjustment range can be observed through the scale line 34. The scale line 34 is based on the hinge point between the swing rod 32 and the fixed seat 31, with the unit being millimeters. The minimum scale is 1mm, and each 1mm increment corresponds to an increase of 2-3mm in the foaming agent filling width. Operators can visually control the filling width deviation within ±1mm through the scale line. During use, external foaming agent can be input into the foaming agent filling tube 35 through the foaming agent connecting tube 36, and finally, the foaming agent is filled through the foaming agent filling tube 35.

[0028] Working principle and usage process of this utility model: During use, rotating the lifting adjustment screw 29 causes the threaded seat 26 to move laterally, allowing the scissor arm 25 to extend or retract, thereby adjusting the overall height of the support platform 27 and the foaming agent dispensing structure 3. The adjustment range can be visually observed through the scale line 34 on one side of the swing arm 32. When the swing arm 32 descends, its swing range expands, widening the coverage area of ​​the foaming agent dispensing pipe 35 and ultimately increasing the dispensing width; conversely, the dispensing width decreases when the swing arm 32 descends. Then, the drive motor 12 on the fixed frame 11 is activated, and its output shaft drives the crank 13. Rotating, the crank 13 drives the second connecting rod 15 through the first connecting rod 14 to make a lateral reciprocating linear motion between the U-shaped grooves of the two sets of first pulleys 18 and the second pulley 19. The limiting rod 16 on the second connecting rod 15 slides in the groove 33 of the swing rod 32 to drive the swing rod 32 to swing. Finally, the external foaming agent is input into the foaming agent injection pipe 35 through the foaming agent connecting pipe 36. The foaming agent injection pipe 35 accurately injects the explosive matrix on the cooling steel belt. The injection width can be adjusted at any time according to the matrix width through the height adjustment structure 2 to match the requirements.

[0029] However, as is well known to those skilled in the art, the working principle and wiring method of the drive motor 12 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience. Furthermore, all threaded parts and movable parts in this application need to be cleaned and maintained regularly (including but not limited to dust removal, lubrication, etc.) to ensure their normal operation.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foaming agent dispensing device with automatically adjustable dispensing width, characterized in that, include: The drive structure (1) includes a fixed frame (11), a first connecting rod (14), a second connecting rod (15), a limiting rod (16), a first pulley (18) and a second pulley (19), and the first pulley (18) and the second pulley (19) are provided in two sets; The height adjustment structure (2) includes a support base plate (21), a scissor arm (25), a threaded seat (26), a support platform (27), a support base (28), and a lifting adjustment screw (29). The lower surface of the support base plate (21) is fixedly connected to the upper surface of the fixed frame (11). The foaming agent filling structure (3) includes a fixed seat (31), a swing rod (32), a slide groove (33), a scale line (34), a foaming agent filling pipe (35) and a foaming agent connecting pipe (36), and the fixed seat (31) is installed on the upper surface of the support plate (17).

2. The foaming agent dispensing device with automatically adjustable dispensing width according to claim 1, characterized in that: A drive motor (12) is mounted on one end of the upper surface of the fixed frame (11), and a crank (13) is fixedly connected to the output shaft of the drive motor (12). One end of the first connecting rod (14) is connected to the internal bearing of the crank (13) away from the output shaft of the drive motor (12), and the other end of the first connecting rod (14) is connected to the internal bearing of the second connecting rod (15) near the drive motor (12).

3. The foaming agent dispensing device with automatically adjustable dispensing width according to claim 1, characterized in that: The limiting rod (16) is fixedly connected to the surface of the middle position of the second connecting rod (15). A support plate (17) is fixedly connected to the surface of one side of the fixing frame (11). The two sets of first pulleys (18) and second pulleys (19) are respectively bearing connected to the inside of both ends of the support plate (17). U-shaped grooves are opened at the wheel rims of the two sets of first pulleys (18).

4. The foaming agent dispensing device with automatically adjustable dispensing width according to claim 3, characterized in that: The lower surface of the second connecting rod (15) slides against the inner wall of the two sets of U-shaped grooves, and the upper surface of the second connecting rod (15) slides against the outer surface of the two sets of second pulleys (19).

5. The foaming agent dispensing device with automatically adjustable dispensing width according to claim 1, characterized in that: The first bearing seat (22) and the second bearing seat (23) are fixedly connected at the middle position of the upper surface of the support base plate (21). The support seat (28) is fixedly connected to the other end of the upper surface of the fixing frame (11). The lifting adjustment screw (29) is connected to the inside of the support seat (28), the first bearing seat (22) and the second bearing seat (23). A handwheel is provided at the end of the lifting adjustment screw (29) away from the support seat (28).

6. The foaming agent dispensing device with automatically adjustable dispensing width according to claim 1, characterized in that: Both sides of the support base plate (21) and the support platform (27) are fixedly connected with connecting plates (24). The upper and lower ends of the two sets of scissor arms (25) are respectively hinged to the connecting plates (24) corresponding to the support base plate (21) and the support platform (27). A threaded seat (26) is fixedly connected inside the middle position of the lower end of the scissor arm (25). The lifting adjustment screw (29) is connected to the internal thread of the threaded seat (26).

7. The foaming agent dispensing device with automatically adjustable dispensing width according to claim 1, characterized in that: A connecting rod is fixedly connected to the surface of one end of the fixed base (31), and the connecting rod is connected to the internal bearing at the upper end of the swing rod (32). The slide groove (33) is opened inside the swing rod (32). The scale line (34) is set on the surface of one side of the swing rod (32). The limiting rod (16) is slidably inserted into the slide groove (33). The foaming agent injection pipe (35) is fixedly connected to the side wall of the swing rod (32). The foaming agent injection pipe (35) is connected to the foaming agent connecting pipe (36).

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