Large cartridge charging machine card machine with card punching failure rate reducing structure
By using PTFE needle roller bearings and an improved structural design in the time clock, the movement paths of the bearings and grippers are optimized, solving the problem of easy bearing damage in the time clock, reducing the failure rate and wear, and improving the stability and lifespan of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-03
AI Technical Summary
The bearings of existing single-cylinder punching machines are prone to damage, resulting in a high punching failure rate. Furthermore, they experience severe wear during the production of emulsion explosives, affecting the equipment's lifespan and stability.
The needle roller bearings made of PTFE material and the improved structural design, including the main fixed frame, gantry moving frame, limit sleeve and ring limit guide rail, reduce impact load and wear by optimizing the movement path of the bearing and the claw.
This has reduced the failure rate of the punching mechanism, ensured smooth opening and closing of the grippers, and facilitated smooth up-and-down sliding of the gantry frame, thereby extending the service life and stability of the equipment.
Smart Images
Figure CN224080863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emulsion explosive production technology, specifically to a large-roll explosive loading machine with a structure that reduces the failure rate of the loading machine. Background Technology
[0002] Single-cylinder punching machines are important components of automatic loading machines and are widely used in emulsion explosive production lines. Most single-cylinder punching machines commonly found on the market today are similar in overall structure, using a cylinder to push and pull to open and close the punching machine's jaws.
[0003] The pressure roller bearing of the punching machine is an IKO1214 Japanese imported needle roller bearing. The outer ring uses stamped bearing steel and has an open design without an inner ring. During the production of emulsion explosives, in addition to oil and dust, residual emulsion explosives, after cooling, crystallize into fine abrasive particles that remain in the gap and rotate with the shaft. These particles grind the journal and bearing raceway surfaces, causing abrasive wear. During startup, shutdown, or edge contact between the journal and bearing, bearing wear is accelerated, leading to bearing geometric deformation, loss of precision, and increased bearing clearance due to the wear of the pin. This causes a rapid deterioration of bearing performance before its expected lifespan. Furthermore, the continuous opening and closing of the chuck is driven by the reciprocating motion of the cylinder pushing the gantry, which in turn applies radial thrust to the pressure roller bearing via the pin on the side of the gantry, thus driving the chuck. This frequent reciprocating motion of the cylinder causes rigid impacts to the hinged parts of the moving parts of the mechanism, specifically collisions between the pin and the inner ring of the bearing. Therefore, when the bearing rotates, it bears not only normal dynamic loads but also impact loads. The IKO1214 bearing is relatively thin, the bearing steel has a high elastic modulus, and the contact area between the needle roller and the pin is small. When the bearing is subjected to multiple rigid impacts, it may suffer permanent deformation and indentation, causing the movement trajectory to deviate. In severe cases, it may fail due to fatigue or even damage other components such as the gantry mounting hole, side plate, and pin.
[0004] Therefore, a novel type of large-cartridge loading machine with a structure that reduces the failure rate of card-punching is proposed to solve the above problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a large-volume medicine packaging machine with a structure that reduces the failure rate of the card-punching mechanism, so as to solve the problem of easy damage to the bearings of the card-punching mechanism mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A large-capacity medicine roll filling machine with a structure that reduces the failure rate of card-punching, includes a main fixed frame. A cylinder fixing plate is fixedly connected to the top of the main fixed frame, and a top electric cylinder is installed at the top of the cylinder fixing plate. A gantry moving frame is installed inside the main fixed frame. A shaft fixing head is fixedly connected to the bottom right side of the gantry moving frame. A first pin is longitudinally fixedly connected inside the shaft fixing head. First needle roller bearings are respectively sleeved at the front and rear ends of the first pin. A retracting claw arm is located on the right side of the main fixed frame. A bearing limiting guide rail is welded to the left side of the top of the retracting claw arm, and a bearing limiting guide rail is located on the right side of the bottom of the retracting claw arm. The main fixing frame has a fixed connection with a retractable claw head. A hinge seat is welded to the right side of the main fixing frame. A second pin is longitudinally fixedly connected inside the hinge seat. Three sets of second needle roller bearings are sleeved on the outside of the second pin. A fixing claw is fixedly connected to the bottom of the main fixing frame. A claw groove is opened on the right side of the fixing claw. Four sets of mounting bolts are inserted into the bottom of the front and rear ends of the main fixing frame respectively. A limit sleeve is welded to the left side of the main fixing frame. A ring limit guide rail is fixedly connected to the front and rear ends of the main fixing frame respectively. A limit ring is set on the outside of the main fixing frame. Fixing bolts are threadedly connected to the left and right sides of the limit ring respectively.
[0008] Furthermore, the front and rear ends of the gantry moving frame are fitted together with the front and rear ends inside the main fixed frame, and the main fixed frame and the gantry moving frame are not connected.
[0009] Furthermore, the output end of the top electric cylinder is connected to the top of the gantry moving frame, which can slide up and down along the interior of the main fixed frame.
[0010] Furthermore, the external shape and dimensions of the first needle roller bearing are adapted to the internal shape and dimensions of the bearing limiting guide rail, and the first needle roller bearing can slide left and right along the inside of the bearing limiting guide rail.
[0011] Furthermore, the second pin passes through the interior of the retractable claw arm, and the retractable claw arm and the hinge seat are hinged together by the second pin.
[0012] Furthermore, the first needle roller bearing and the second needle roller bearing have the same specifications, and the bushings of the first needle roller bearing and the second needle roller bearing are made of PTFE.
[0013] Furthermore, the shape and size of the left side of the gantry moving frame are adapted to the shape and size of the inside of the limiting sleeve, and the left side of the gantry moving frame can slide up and down along the inside of the limiting sleeve.
[0014] Furthermore, the gantry moving frame and the limiting ring are fixedly connected by fixing bolts. The front and rear ends of the inner part of the limiting ring are in contact with the front and rear ends of the main fixed frame. The front and rear ends of the limiting ring are in contact with the ring limiting guide rail. The limiting ring is not connected to the main fixed frame or the ring limiting guide rail.
[0015] The beneficial effects of this utility model are as follows: the large medicine roll filling machine with the structure for reducing the failure rate of the card-punching mechanism not only reduces the failure rate of the card-punching mechanism, but also ensures smooth opening and closing of the claws and achieves the function of smooth up and down movement of the gantry frame.
[0016] The device is equipped with a main fixed frame, a top electric cylinder, a gantry moving frame, a shaft fixing head, a first pin, a first needle roller bearing, a bearing limiting guide rail, a retracting claw arm, a retracting claw head, a second pin, a second needle roller bearing, and a hinge seat. In use, the top electric cylinder extends downward, pushing the gantry moving frame to slide downward along the main fixed frame. The first pin in the shaft fixing head, together with the first needle roller bearing, slides and displaces along the bearing limiting guide rail. The retracting claw arm is subjected to radial thrust, that is, it swings downward around the second pin as the center and closes with the fixed claw.
[0017] With a retractable claw arm, a retractable claw head, a fixed claw, and a claw groove, the retractable claw arm is subjected to radial thrust and swings downward around the second pin as the center during use, closing with the fixed claw. The shape and size of the retractable claw head, the fixed claw, and the claw groove are matched, and the two close tightly, and the claw clamp opens and closes smoothly.
[0018] By setting up a limiting sleeve, a ring limiting guide rail, a limiting ring, and fixing bolts, the gantry moving frame slides up and down during use. The limiting sleeve can restrict the up and down sliding path of the gantry moving frame, and the limiting ring slides up and down synchronously with the gantry moving frame. The main fixing frame and the ring limiting guide rail restrict the up and down movement path of the limiting ring, thereby limiting the up and down sliding displacement path of the gantry moving frame, making it smooth and stable up and down, and realizing the function of smooth up and down movement of the gantry frame.
[0019] The first and second needle roller bearings are made of PTFE, which is resistant to strong acids, alkalis, strong oxidants, water and various organic solvents. It has good weather resistance, the lowest coefficient of friction and the lowest surface tension among solid materials, and does not easily adhere to any impurities. It is not easily corroded or deformed during use, thus reducing the failure rate of the clamping mechanism. Attached Figure Description
[0020] Figure 1 This is a front view structural diagram of the present utility model;
[0021] Figure 2 This is a front view structural diagram of the gantry moving frame of this utility model;
[0022] Figure 3 This is a side enlarged structural schematic diagram of the first pin shaft of this utility model;
[0023] Figure 4 This is a side enlarged view of the second pin shaft structure of this utility model;
[0024] Figure 5 This is a side view enlarged structural diagram of the retracting claw arm of this utility model;
[0025] Figure 6 This is a side view enlarged structural schematic diagram of the fixing claw of this utility model;
[0026] Label Explanation:
[0027] 1. Main fixed frame; 2. Cylinder fixing plate; 3. Top electric cylinder; 4. Gantry moving frame; 5. Shaft fixing head; 6. First pin; 7. First needle roller bearing; 8. Bearing limit guide rail; 9. Retracting claw arm; 10. Retracting claw head; 11. Second pin; 12. Second needle roller bearing; 13. Hinge seat; 14. Fixed claw; 15. Claw groove; 16. Mounting bolt; 17. Limiting sleeve; 18. Ring limiting guide rail; 19. Limiting ring; 20. Fixing bolt. Detailed Implementation
[0028] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0029] Please refer to Figures 1 to 4 This utility model relates to a large-capacity medicine roll filling machine with a structure that reduces the failure rate of card-punching, including a main fixed frame 1. A cylinder fixing plate 2 is fixedly connected to the top of the main fixed frame 1, and a top electric cylinder 3 is installed at the top of the cylinder fixing plate 2. A gantry moving frame 4 is arranged inside the main fixed frame 1. A shaft fixing head 5 is fixedly connected to the right side of the bottom of the gantry moving frame 4. A first pin 6 is longitudinally fixedly connected inside the shaft fixing head 5. First needle roller bearings 7 are respectively sleeved at the front and rear ends of the first pin 6. A retracting claw arm 9 is arranged on the right side of the main fixed frame 1. The left side of the top of the retracting claw arm 9 is welded There is a bearing limiting guide rail 8, and a retracting claw head 10 is fixedly connected to the right side of the bottom of the retracting claw arm 9. A hinge seat 13 is welded to the right side of the main fixing frame 1. A second pin 11 is fixedly connected to the inside of the hinge seat 13 longitudinally. Three sets of second needle roller bearings 12 are sleeved on the outside of the second pin 11. A fixing claw 14 is fixedly connected to the bottom end of the main fixing frame 1. A limiting sleeve 17 is welded to the left side of the main fixing frame 1. Ring limiting guide rails 18 are fixedly connected to the front and rear ends of the main fixing frame 1 respectively. A limiting ring 19 is provided on the outside of the main fixing frame 1. Fixing bolts 20 are threadedly connected to the left and right sides of the limiting ring 19 respectively.
[0030] The front and rear ends of the gantry moving frame 4 are in contact with the front and rear ends inside the main fixed frame 1. The main fixed frame 1 and the gantry moving frame 4 are not connected. The output end of the top electric cylinder 3 is connected to the top of the gantry moving frame 4. The gantry moving frame 4 can slide up and down along the inside of the main fixed frame 1.
[0031] The external shape and dimensions of the first needle roller bearing 7 are compatible with the internal shape and dimensions of the bearing limiting guide rail 8. The first needle roller bearing 7 can slide left and right along the inside of the bearing limiting guide rail 8. The second pin 11 passes through the inside of the retracting claw arm 9. The retracting claw arm 9 and the hinge seat 13 are hinged together by the second pin 11. The specifications of the first needle roller bearing 7 and the second needle roller bearing 12 are the same. The bushings of the first needle roller bearing 7 and the second needle roller bearing 12 are made of PTFE, which has better durability.
[0032] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first needle roller bearing 7 and the second needle roller bearing 12 are made of PTFE, which is resistant to strong acids, strong alkalis, strong oxidants, water and various organic solvents, has good weather resistance, and is the solid material with the lowest coefficient of friction and the lowest surface tension. It is not easy to adhere to any impurities, and it is not easy to corrode or deform during use, thus reducing the failure rate of the carding mechanism.
[0033] The right side of the fixed claw 14 is provided with a claw groove 15, and four sets of mounting bolts 16 are respectively inserted into the bottom of the front and rear ends of the main fixing frame 1, so that the claw clamps can close smoothly.
[0034] Specifically, such as Figure 5 and Figure 6 As shown, the shapes and sizes of the retractable claw 10, the fixed claw 14, and the claw groove 15 are compatible, and the two fit together tightly, allowing the claw clamp to open and close smoothly.
[0035] The shape and size of the left side of the gantry moving frame 4 are compatible with the shape and size of the inside of the limiting sleeve 17. The left side of the gantry moving frame 4 can slide up and down along the inside of the limiting sleeve 17. The gantry moving frame 4 and the limiting ring 19 are fixedly connected by the fixing bolts 20. The front and rear ends of the inside of the limiting ring 19 are in contact with the front and rear ends of the main fixed frame 1. The front and rear ends of the limiting ring 19 are in contact with the ring limiting guide rail 18. The limiting ring 19 is not connected to the main fixed frame 1 or the ring limiting guide rail 18. The gantry frame slides up and down smoothly.
[0036] Specifically, such as Figure 1 and Figure 2 As shown, the limiting sleeve 17 can restrict the vertical sliding path of the gantry moving frame 4. The limiting ring 19 slides up and down synchronously with the gantry moving frame 4. The main fixed frame 1 and the ring limiting guide rail 18 restrict the vertical movement path of the limiting ring 19, thereby limiting the vertical sliding displacement path of the gantry moving frame 4, making it smooth and stable.
[0037] Working Principle: In use, the top electric cylinder 3 extends downward, pushing the gantry moving frame 4 to slide downward along the main fixed frame 1. The first pin 6 inside the shaft fixing head 5, together with the first needle roller bearing 7, slides along the bearing limiting guide rail 8. The retracting claw arm 9 is subjected to radial thrust, that is, it swings downward with the second pin 11 as the center, and closes with the fixed claw 14. The first needle roller bearing 7 and the second needle roller bearing 12 are made of PTFE, which is resistant to strong acids, strong alkalis, strong oxidants, water and various organic solvents, has good weather resistance, and is the solid material with the lowest coefficient of friction and the lowest surface tension. It is not easy to adhere to any impurities, and it is not easy to corrode or deform during use, reducing the failure rate of the clamping mechanism. The retracting claw arm 9 is subjected to radial thrust and swings downward with the second pin 11 as the center, closing with the fixed claw 14. The shape and size of the retracting claw head 10, the fixed claw 14 and the claw groove 15 are matched, and the two close tightly, and the claw clamp opens and closes smoothly. The gantry moving frame 4 slides up and down. The limiting sleeve 17 can restrict the up and down sliding path of the gantry moving frame 4. The limiting ring 19 slides up and down synchronously with the gantry moving frame 4. The main fixed frame 1 and the ring limiting guide rail 18 restrict the up and down movement path of the limiting ring 19, thereby limiting the up and down sliding displacement path of the gantry moving frame 4, making it smooth and stable up and down.
[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A large-cartridge filling machine with a structure that reduces the failure rate of card-punching, comprising a main fixing frame (1), characterized in that: A cylinder fixing plate (2) is fixedly connected to the top of the main fixing frame (1), and a top electric cylinder (3) is installed on the top of the cylinder fixing plate (2). A gantry moving frame (4) is provided inside the main fixing frame (1). A shaft fixing head (5) is fixedly connected to the right side of the bottom of the gantry moving frame (4). A first pin (6) is fixedly connected longitudinally inside the shaft fixing head (5). A first needle roller bearing (7) is sleeved on the front and rear ends of the first pin (6). A retracting claw arm (9) is provided on the right side of the main fixing frame (1). A bearing limiting guide rail (8) is welded to the left side of the top of the retracting claw arm (9). A retracting claw head (10) is fixedly connected to the right side of the bottom of the retracting claw arm (9). A bearing limiting guide rail (8) is welded to the right side of the main fixing frame (1). The hinge seat (13) has a second pin (11) fixedly connected longitudinally inside the hinge seat (13). Three sets of second needle roller bearings (12) are sleeved on the outside of the second pin (11). The bottom end of the main fixing frame (1) is fixedly connected to a fixing claw (14). A claw groove (15) is opened on the right side of the fixing claw (14). Four sets of mounting bolts (16) are inserted into the bottom of the front and rear ends of the main fixing frame (1). A limit sleeve (17) is welded on the left side of the main fixing frame (1). A ring limiting guide rail (18) is fixedly connected to the front and rear ends of the main fixing frame (1). A limit ring (19) is provided on the outside of the main fixing frame (1). Fixing bolts (20) are threadedly connected to the left and right sides of the limit ring (19).
2. The large-cart loading machine with a reduced card-carding failure rate structure according to claim 1, characterized in that: The front and rear ends of the gantry moving frame (4) are in contact with the front and rear ends inside the main fixed frame (1), and the main fixed frame (1) and the gantry moving frame (4) are not connected.
3. The large-cart loading machine with a reduced card-carding failure rate structure according to claim 1, characterized in that: The output end of the top electric cylinder (3) is connected to the top of the gantry moving frame (4), and the gantry moving frame (4) can slide up and down along the inside of the main fixed frame (1).
4. The large-cart loading machine with a reduced card-carding failure rate structure according to claim 1, characterized in that: The external shape and size of the first needle roller bearing (7) are adapted to the internal shape and size of the bearing limiting guide rail (8), and the first needle roller bearing (7) can slide left and right along the inside of the bearing limiting guide rail (8).
5. The large-cart loading machine with a reduced card-carding failure rate structure according to claim 1, characterized in that: The second pin (11) passes through the interior of the retracting claw arm (9), and the retracting claw arm (9) and the hinge seat (13) are hinged together by the second pin (11).
6. The large-cart loading machine with a reduced card-carding failure rate structure according to claim 1, characterized in that: The first needle roller bearing (7) and the second needle roller bearing (12) have the same specifications, and the bushings of the first needle roller bearing (7) and the second needle roller bearing (12) are made of PTFE.
7. The large-cart loading machine with a reduced card-carding failure rate structure according to claim 1, characterized in that: The shape and size of the left side of the gantry moving frame (4) are adapted to the shape and size of the inside of the limiting sleeve (17), and the left side of the gantry moving frame (4) can slide up and down along the inside of the limiting sleeve (17).
8. The large-cart loading machine with a reduced card-carding failure rate structure according to claim 1, characterized in that: The gantry moving frame (4) and the limiting ring (19) are fixedly connected by fixing bolts (20). The front and rear ends of the limiting ring (19) are in contact with the front and rear ends of the main fixing frame (1), and the front and rear ends of the limiting ring (19) are in contact with the ring limiting guide rail (18).