High speed continuous cap screwing machine and method

Abstract

The application discloses a high-speed continuous cap screwing machine and a cap screwing method, and relates to the field of cap screwing machines. The high-speed continuous cap screwing machine comprises a base and a box body, the box body is fixed on the base, and further comprises: a rotating cavity fixed on the top plate of the box body, a plurality of fixed rods fixed below the rotating cavity, a push rod sliding in the fixed rods, a support frame fixedly connected below the push rod, a servo motor fixed in the support frame, an output end of the servo motor fixedly connected with a sliding cavity, an outer wall fixedly connected with the sliding cavity through a support, a second telescopic rod fixedly connected below the outer wall, a plurality of clamping plates fixedly connected at the other end of the second telescopic rod, a push air bag connected between the clamping plates and the outer wall, a pressing plate fixed on the inner side of the outer wall, a plurality of air bag columns fixed below the pressing plate, and a first connecting pipe in communication between the air bag columns and the push air bag. The application can clamp bottle caps of different sizes, the operation process is simple, and the cumbersome operation of replacing the clamping components is reduced.

Description

Technical Field

[0001] This invention belongs to the field of capping machine technology, specifically, it relates to a high-speed continuous capping machine and a capping method. Background Technology

[0002] Capping machines are mainly used for sealing various bottles, including those for cosmetics, pharmaceuticals, beverages, condiments, and health products. For example, they can be used to cap mineral water bottles, medicine bottles, daily chemical products, and beverage bottles, and are also suitable for canned products requiring vacuum packaging. Furthermore, capping machines are widely used in the production of products in industries such as pesticides and lubricants, covering bottle caps of different materials and specifications. They enable fully automated production, improving production efficiency and product quality, making them a powerful, easy-to-operate, and widely applicable packaging machinery.

[0003] Currently, in existing capping machines, the size of the caps that the grippers can hold is often fixed, or the range of rotation is small. At the same time, the connection between the grippers and the rotating parts is often cumbersome. Therefore, if you want to clamp and tighten caps of different sizes, you need to replace all the grippers. This process wastes a lot of manpower and time. In addition, the disassembly and assembly process is prone to damage to the device and loss of parts, which is extremely inconvenient. Based on this, a high-speed continuous capping machine is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a high-speed continuous capping machine that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a high-speed continuous capping machine, including a base and a housing, the housing being fixed on the base, and further including: a rotating cavity fixed on the top plate of the housing, multiple fixed rods fixed below the rotating cavity, a pushing rod sliding within the fixed rods, a sliding mechanism 9 fixed within the rotating cavity 11, a second sliding groove 91 formed on the sliding mechanism 9, a sliding support rod 411 fixed on the pushing rod 41, the sliding support rod 411 sliding on the second sliding groove 91; a support frame is fixedly connected below the pushing rod; A servo motor is fixed inside the support frame. The output end of the servo motor is fixedly connected to a sliding cavity, and the sliding cavity is fixedly connected to an outer wall via a bracket. A second telescopic rod is fixedly connected to the lower part of the outer wall. Multiple clamping plates are fixedly connected to the other end of the second telescopic rod. A pushing airbag is connected between the clamping plates and the outer wall. A pressure plate is fixed to the inner side of the outer wall. Multiple airbag columns are fixed below the pressure plate. A first connecting pipe connects the airbag columns to the pushing airbags. An air inlet pipe is connected to the airbag columns. A first turntable, a second turntable, and a third turntable are rotatably mounted on the bottom plate inside the box.

[0006] Preferably, a hopper is fixed above the box body, and a feeding pipe is connected to the bottom of the hopper. The outlet of the feeding pipe is located on one side of the third turntable.

[0007] Preferably, a feeding turntable is fixed below the second turntable, and a support platform is fixed on the bottom plate of the box by a column, with a conveyor belt on one side of the support platform.

[0008] Preferably, the bottom plate of the housing has multiple rotating transmission rods, and a transmission belt is sleeved on the transmission rods.

[0009] Preferably, the bottom of the push rod is connected to a fixed cylinder wall via a bearing, and a support plate is fixed to the outside of the fixed cylinder wall. The support plate is fixedly connected to the other end of the airbag column.

[0010] Furthermore, a first telescopic rod is fixedly connected to the lower end face of the fixed cylinder wall, a push plate is fixedly connected below the first telescopic rod, and a tension spring is connected between the push plate and the fixed cylinder wall.

[0011] Furthermore, a suction cup is fixed at the center of the sliding cavity, a piston slides inside the suction cup, and a tension sensor is fixed on the lower end face of the push plate, with the lower end face of the tension sensor fixedly connected to the piston.

[0012] Preferably, a second connecting pipe connects the plurality of airbag columns, and a connecting spring and a telescopic frame are fixedly connected between the clamp and the outer wall, respectively, and the pushing airbag is located inside the telescopic frame.

[0013] Furthermore, a plurality of sliding blocks are fixed on the outer side of the fixed cylinder wall, and a plurality of first sliding grooves are provided on the outer wall, and the sliding blocks slide in the first sliding grooves.

[0014] The capping method of a high-speed continuous capping machine mainly includes the following steps: S1. Inflate and deflate the airbag column and the push airbag through the air intake pipe, and adjust the opening between the clamps to a suitable size; S2. This device will be activated, putting all rotating and transmission components into operation. S3. Place the bottle cap into the hopper and send the bottle body to the second turntable from the other side; S4. Observe the sensor data through the display control panel and make appropriate adjustments as needed; S5. Collect the assembled bottles.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: This high-speed continuous capping machine can adjust the spacing between the clamping plates by adjusting the air pressure inside the air bladder column and pushing air bladder, thereby clamping bottle caps of different sizes. The operation process is simple and reduces the tedious operation of replacing clamping parts.

[0016] This high-speed continuous capping machine increases the clamping force of the clamping plate by pushing the outer wall of the rod to squeeze the airbag column during clamping, which greatly avoids the phenomenon of unstable clamping and slippage during the tightening process.

[0017] This high-speed continuous capping machine uses a suction cup to hold the bottle caps. By using the relative displacement of the push rod during clamping, a negative pressure space is created between the suction cup and the bottle cap using a piston, which increases the adhesion between the suction cup and the bottle cap and prevents the bottle cap from falling off during the transfer process.

[0018] This high-speed continuous capping machine can detect the adsorption state of bottle caps through a tension sensor, thereby completing self-inspection and error reporting, which facilitates the subsequent sorting of defective products.

[0019] The parts not covered in this device are the same as or can be implemented using existing technology. This invention can clamp bottle caps of different sizes, and the operation process is simple, reducing the tedious operation of replacing clamping parts. It greatly avoids the phenomenon of unstable clamping and slippage during tightening and prevents bottle caps from falling off during the transfer of bottle caps. It can complete self-inspection and error reporting, which facilitates the sorting of defective products in the later stage. Attached Figure Description

[0020] In the attached diagram: Figure 1 This is a front view of the high-speed continuous capping machine proposed in this invention.

[0021] Figure 2 This is a schematic diagram of the overall structure of the high-speed continuous capping machine proposed in this invention.

[0022] Figure 3 This is a schematic diagram of the internal structure of the casing in the high-speed continuous capping machine proposed in this invention.

[0023] Figure 4 This is a top view of the internal structure of the box in the high-speed continuous capping machine proposed in this invention.

[0024] Figure 5 This is a schematic diagram of the gripper part in the high-speed continuous capping machine proposed in this invention.

[0025] Figure 6 The high-speed continuous capping machine proposed in this invention Figure 5A magnified structural diagram of point A in the middle.

[0026] Figure 7 This is a cross-sectional view of the clamping plate structure in the high-speed continuous capping machine proposed in this invention.

[0027] Figure 8 This is a cross-sectional view of the gripper portion in the high-speed continuous capping machine proposed in this invention.

[0028] Figure 9 The high-speed continuous capping machine proposed in this invention Figure 8 A magnified structural diagram at point B in the middle.

[0029] Figure 10 This is a cross-sectional view of the outer wall of the high-speed continuous capping machine proposed in this invention.

[0030] Figure 11 This is a schematic diagram of the sliding mechanism in the high-speed continuous capping machine proposed in this invention.

[0031] Figure 12 This is a side view of the sliding mechanism in the high-speed continuous capping machine proposed in this invention.

[0032] In the diagram: 1. Base; 11. Rotating cavity; 12. Box body; 13. Hopper; 14. Feeding pipe; 2. Support platform; 21. First turntable; 22. Second turntable; 23. Third turntable; 24. Feeding turntable; 25. Conveyor belt; 3. Transmission rod; 31. Transmission belt; 4. Fixed rod; 41. Push rod; 411. Sliding support rod; 42. Support frame; 43. Servo motor; 44. Sliding cavity; 45. Outer wall; 451. First sliding groove; 452. Pressure plate; 5. Push plate; 51. Tension sensor; 52. Suction cup; 53. Piston; 6. Fixed cylinder wall; 61. First telescopic rod; 62. Tension spring; 63. Support plate; 64. Sliding block; 7. Airbag column; 71. Air inlet pipe; 72. First connecting pipe; 73. Push airbag; 74. Second connecting pipe; 8. Clamping plate; 81. Second telescopic rod; 82. Connecting spring; 83. Telescopic frame; 9. Sliding mechanism; 91. Second sliding groove. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] Example 1: Refer to Figures 1-12A high-speed continuous capping machine includes a base 1 and a housing 12. The housing 12 is fixed to the base 1. The machine also includes: a rotating cavity 11 fixed on the top plate of the housing 12; multiple fixed rods 4 fixed below the rotating cavity 11; a pushing rod 41 sliding within the fixed rods 4; a sliding mechanism 9 fixed within the rotating cavity 11; a second sliding groove 91 formed on the sliding mechanism 9; a sliding support rod 411 fixed on the pushing rod 41; and the sliding support rod 411 sliding within the second sliding groove 91. A support frame 42 is fixedly connected below the pushing rod 41; a servo motor 43 is fixed within the support frame 42. The output end of the machine 43 is fixedly connected to a sliding cavity 44, and the sliding cavity 44 is fixedly connected to an outer wall 45 via a bracket; a second telescopic rod 81 is fixedly connected to the lower part of the outer wall 45, and multiple clamping plates 8 are fixedly connected to the other end of the second telescopic rod 81; a push airbag 73 is connected between the clamping plate 8 and the outer wall 45; a pressure plate 452 is fixedly fixed to the inner side of the outer wall 45, and multiple airbag columns 7 are fixedly fixed below the pressure plate 452; a first connecting pipe 72 is connected between the airbag columns 7 and the push airbag 73, and an air inlet pipe 71 is connected to the airbag columns 7; connecting springs 82 are fixedly connected between the clamping plate 8 and the outer wall 45 respectively.

[0035] In this invention, traditional capping machines use planetary gears as the driving component. A main drive motor drives a drive gear to rotate, which in turn drives a small planetary gear to rotate. The small planetary gear is fixedly connected to the grippers below, thereby driving all the grippers to rotate and thus completing the cap tightening operation. However, in this method, the stroke and number of rotations of each gripper are fixed, while the parameters of the bottle itself have certain variations. The same number of rotations will result in different cap tightness. Therefore, in this invention, the rotating cavity 11 drives multiple fixed rods 4 to rotate. A support frame 42 and a servo motor 43 are fixed on each sliding push rod 41. The rotational torque of the motor is preset by the built-in chip, so that the tightness of the caps rotated out is consistent. In addition, the device guides the push rod 41 to drive the grippers to grasp the cap at different height positions and place the cap on the bottle mouth at different height positions. The timing of the bottle and cap entry is organically coordinated by servo control. Different positions, different materials, and the final precise position are all organically combined to achieve the action. Compared to the limitations of traditional grippers that open at a limited angle and cannot grip bottle caps of different sizes, this invention uses an air inlet pipe 71 to inflate and deflate the airbag column 7 and the push airbag 73, thereby changing the internal air pressure. The connecting spring 82 is always in a contracted state, thus providing a pulling force to the clamping plates 8. When the air pressure inside the push airbag 73 decreases, the clamping plates 8 contract towards the outer wall 45 due to the pulling force of the connecting spring 82, thereby increasing the distance between the clamping plates 8. Conversely, when the pressure inside the push airbag 73 increases, the push airbag 73 expands, pushing the clamping plates 8 away from the outer wall 45, thereby decreasing the distance between the connecting springs 82. Preferably, there are three clamping plates 8. The contact surface between the clamping plates 8 and the bottle cap is provided with vertical strip-shaped anti-slip textures. The vertical strip-shaped anti-slip textures can maximize the friction between the clamping plates 8 and the bottle cap while reducing the vertical friction, facilitating the subsequent separation of the clamping plates 8 from the bottle cap.

[0036] Example 2: Refer to Figures 1-12 The high-speed continuous capping machine is basically the same as in Embodiment 1, but with the following additional features: the bottom of the push rod 41 is connected to a fixed cylinder wall 6 via a bearing; a support plate 63 is fixed to the outside of the fixed cylinder wall 6; the support plate 63 is fixedly connected to the other end of the airbag column 7; a first telescopic rod 61 is fixedly connected to the lower end face of the fixed cylinder wall 6; a push plate 5 is fixedly connected below the first telescopic rod 61; a tension spring 62 is connected between the push plate 5 and the fixed cylinder wall 6; and a suction cup 52 is fixed at the center of the sliding cavity 44. A piston 53 slides inside the push plate 5. A tension sensor 51 is fixed to the lower end face of the push plate 5. The lower end face of the tension sensor 51 is fixedly connected to the piston 53. A second connecting pipe 74 connects the multiple airbag columns 7. A telescopic frame 83 is fixedly connected between the clamping plate 8 and the outer wall 45. The push airbag 73 is located inside the telescopic frame 83. Multiple sliding blocks 64 are fixed to the outer side of the fixed cylinder wall 6. Multiple first sliding grooves 451 are opened on the outer wall 45. The sliding blocks 64 slide in the first sliding grooves 451.

[0037] In this invention, when the clamping plate 8 clamps the bottle cap, during the process of rotating it above the bottle body for capping, the push rod 41 moves downward under the guidance of the second sliding groove 91. During the downward movement, the push rod 41 drives the support frame 42, the sliding cavity 44 and the outer wall 45 to move downward synchronously. The fixed cylinder wall 6 and the fixed rod 4 are connected by a bearing and do not move vertically. Under the support of the support plate 63, the pressure plate 452 compresses the airbag column 7. Through the first connecting pipe 72, the air pressure inside the pushing airbag 73 increases, thereby increasing the clamping force of the clamping plate 8 on the bottle cap under the push of the airbag. Compared with the traditional capping machine, this greatly avoids the phenomenon of unstable clamping and slippage during the operation and tightening of the bottle cap. The number and position of the airbag columns 7 and the push airbags 73 correspond to each other, so that the efficiency of transmitting the air from the space inside the airbag column 7 to the push airbag 73 is the same when compressed. At the same time, the airbag columns 7 are connected to each other through the second connecting pipe 74, so when it is necessary to adjust the air pressure in the airbag space, only one air inlet pipe 71 is needed for inflation and deflation. The airbag column 7 is equipped with an air pressure detection device, so as to facilitate real-time detection of the working status of the airbag column 7. When the bottle cap is clamped, the push rod 41 will move down a short distance under the guidance of the second sliding groove 91, so that the clamping plate 8 clamps the bottle cap from above. At this time, the sliding cavity 44 will drive the suction cup 52 to contact and adhere to the upper surface of the bottle cap, while the tension spring 62 will pull the push plate 5 and the piston 53, so that the piston 53 will not move down or the movement distance is relatively small. This creates a negative pressure space between the upper surface of the bottle cap, the suction cup 52, and the piston 53, so that the bottle cap will not fall off during the transfer. When the capping operation is completed, the push rod 41 drives the sliding cavity 44 to move up, the piston 53 returns to its original position, the pressure inside the negative pressure space decreases, and under the action of a slight external pulling force, the suction cup 52 is separated from the bottle cap. A tension sensor 51 is fixedly connected between the piston 53 and the push plate 5. The tension sensor 51 can transmit data to the control panel on one side for processing. When the suction cup 52 adsorbs the bottle cap, the negative pressure space formed between the suction cup 52 and the bottle cap will pull the piston 53, thereby causing the tension sensor 51 to generate a value. If the clamping plate 8 fails to clamp the bottle cap or fails to screw on the cap, the tension sensor 51 will not generate a data change. Therefore, based on the data transmitted by the tension sensor 51, it can be determined that a self-check is performed during the capping process, and it can be determined which batch of bottles with installed caps has defective quality. If the number of capping failures exceeds a certain limit, adjustments can be made in time.

[0038] Example 3: Reference Figures 1-12 The high-speed continuous capping machine is basically the same as that in Embodiment 2, but with the following additional features: a hopper 13 is fixed above the housing 12, a feeding pipe 14 is connected below the hopper 13, the outlet of the feeding pipe 14 is located on one side of the third turntable 23, a feeding turntable 24 is fixed below the second turntable 22, a support platform 2 is fixed on the bottom plate of the housing 12 by a column, a conveyor belt 25 is provided on one side of the support platform 2, and multiple transmission rods 3 rotate on the bottom plate of the housing 12, with a transmission belt 31 sleeved on the transmission rods 3.

[0039] In this invention, the hopper 13 is used to hold bottle caps. The bottle caps slide into the groove on the third turntable 23 through the feeding pipe 14 and are conveyed to the position where they connect with the fixed rod 4, thereby facilitating the push rod 41 to move the clamping plate 8 down for clamping. The third turntable 23 is relatively thin, so that the clamping plate 8 can hold the main body of the bottle cap. A tray fixedly connected to the feeding pipe 14 is provided below the third turntable 23. The tray is surrounded by slightly raised anti-drop guardrails. A conveying device can be installed on one side of the second turntable 22. The bottle is used to transport the bottle to the groove of the second turntable 22. During the rotation and conveying process, the bottle comes into contact with the transmission belt 31. The transmission rod 3 rotates itself, thereby driving the transmission belt 31 to carry the bottle into the first turntable 21. Under the combined action of the first turntable 21 and the transmission belt 31, the bottle is carried into the feeding turntable 24, and the feeding turntable 24 transports the bottle to the conveyor belt 25 for delivery. The operation of installing the bottle cap on the bottle is carried out during the transportation process of the transmission belt 31.

[0040] Example 4: Reference Figures 1-12 The capping method of a high-speed continuous capping machine mainly includes the following steps: S1. Input the size data of the bottle cap to be clamped into the display control panel, and inflate and deflate the airbag column 7 and the push airbag 73 according to the suggested airbag pressure provided by the display control panel, so as to adjust the opening between the clamping plates 8 to a suitable size. S2. Start this device to put all rotating and transmission components into operation; S3. The bottle caps are put into the feed hopper 13 in batches and the bottles are sent to the second turntable 22 in the same batches from the other side. The bottle caps and bottles inside the box 12 are observed through the observation window to see if all the bottle caps and bottles are installed. If the installation is completed, the materials need to be replenished in time. S4. Observe the sensor data through the display control panel. If there are many error messages, it proves that there is a certain error in the clamping force or the coordination between machines. You can check it in time. S5. Collect the installed bottles and, based on the error messages displayed on the control panel, select the defective products and re-cap them.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A high-speed continuous capping machine, comprising a base (1) and a housing (12), wherein the housing (12) is fixed on the base (1), characterized in that, Also includes: A rotating cavity (11) is fixed on the top plate of the box (12). Multiple fixed rods (4) are fixed below the rotating cavity (11). A push rod (41) slides inside the fixed rod (4). A support frame (42) is fixedly connected below the push rod (41). A sliding mechanism (9) is fixed inside the rotating cavity (11). A second sliding groove (91) is provided on the sliding mechanism (9). A sliding support rod (411) is fixed on the push rod (41). The sliding support rod (411) slides on the second sliding groove (91). A servo motor (43) is fixed inside the support frame (42), and a sliding cavity (44) is fixedly connected to the output end of the servo motor (43). The sliding cavity (44) is fixedly connected to an outer wall (45) through a bracket. A second telescopic rod (81) is fixedly connected to the lower part of the outer wall (45), and a plurality of clamps (8) are fixedly connected to the other end of the second telescopic rod (81). A push airbag (73) is connected between the clamps (8) and the outer wall (45). A pressure plate (452) is fixed on the inner side of the outer wall (45), and a plurality of airbag columns (7) are fixed below the pressure plate (452). A first connecting pipe (72) is connected between the airbag column (7) and the push airbag (73), and an air inlet pipe (71) is connected to the airbag column (7). The bottom plate inside the box (12) has a first turntable (21), a second turntable (22) and a third turntable (23) that rotate respectively. The bottom of the push rod (41) is connected to a fixed cylinder wall (6) via a bearing. A support plate (63) is fixed to the outside of the fixed cylinder wall (6). The support plate (63) is fixedly connected to the other end of the airbag column (7). A first telescopic rod (61) is fixedly connected to the lower end face of the fixed cylindrical wall (6), and a push plate (5) is fixedly connected below the first telescopic rod (61). A tension spring (62) is connected between the push plate (5) and the fixed cylindrical wall (6). A suction cup (52) is fixed at the center of the sliding cavity (44), and a piston (53) slides inside the suction cup (52). A tension sensor (51) is fixed on the lower end face of the push plate (5), and the lower end face of the tension sensor (51) is fixedly connected to the piston (53). A second connecting pipe (74) is connected between multiple airbag columns (7), and a connecting spring (82) and a telescopic frame (83) are respectively fixedly connected between the clamp (8) and the outer wall (45). The pushing airbag (73) is located inside the telescopic frame (83).

2. The high-speed continuous capping machine according to claim 1, characterized in that, A hopper (13) is fixed above the box (12), and a feeding pipe (14) is connected below the hopper (13). The outlet of the feeding pipe (14) is located on one side of the third turntable (23).

3. The high-speed continuous capping machine according to claim 1, characterized in that, A feeding turntable (24) is fixed below the second turntable (22), and a support platform (2) is fixed on the bottom plate of the box (12) by a pillar. A conveyor belt (25) is provided on one side of the support platform (2).

4. The high-speed continuous capping machine according to claim 1, characterized in that, Multiple transmission rods (3) are rotatably mounted on the bottom plate of the housing (12), and a transmission belt (31) is fitted on the transmission rods (3).

5. The high-speed continuous capping machine according to claim 1, characterized in that, Multiple sliding blocks (64) are fixed on the outer side of the fixed cylindrical wall (6), and multiple first sliding grooves (451) are provided on the outer wall (45). The sliding blocks (64) slide in the first sliding grooves (451).

6. A capping method for a high-speed continuous capping machine, comprising the high-speed continuous capping machine as described in claim 5, characterized in that, The main steps include: S1. Inflate and deflate the airbag column (7) and the push airbag (73) through the air intake pipe (71) and adjust the opening between the clamps (8) to a suitable size; S2. This device will be activated, putting all rotating and transmission components into operation. S3. Place the bottle cap into the feed hopper (13) and send the bottle body to the second turntable (22) from the other side; S4. Observe the sensor data through the display control panel and make appropriate adjustments as needed; S5. Collect the assembled bottles.

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