A three-knife under-lid mechanism suitable for large lid type

Abstract

The utility model belongs to the technical field of lid making machinery, disclose a kind of three knives lower lid mechanism suitable for big lid type, including support plate, the top of support plate is equipped with blanking hole, the top of support plate is fixedly installed with pedestal, the center of pedestal is equipped with discharging hole corresponding blanking hole;Three evenly distributed installation ports are equipped on the outer side of the circumference of discharging hole of the pedestal, and one lid separating wheel is arranged in each installation port.The scheme provides a kind of three knives lower lid mechanism, three lid separating wheels are evenly arranged on circumference, the restraining force to lid body is enhanced using three-point positioning principle, unified screw rotation is realized by synchronous driving device, and the stable separation of lid body is realized by the rotary motion of screw dividing slot, to avoid the phenomenon of stuck lid or stacked lid.The mechanism is simple in structure and stable in operation, and is particularly suitable for the automatic production line of big lid type.

Description

Technical Field

[0001] This utility model relates to the field of cap-making machinery technology, and more specifically, to a three-blade cap-lowering mechanism suitable for large caps. Background Technology

[0002] In the cap manufacturing industry, existing cap separation mechanisms, especially for standard sizes (such as the 401 cap with a diameter ≤110mm), are mainly based on spiral cap-separating knife technology. Typically, two sets of cap-separating knives (two-knife mechanism) are used. The cap-separating knives separate stacked caps one by one by spiral rotation (in the same direction or in opposite directions) to achieve the cap-separating function.

[0003] However, for large-diameter caps (e.g., diameter > 110mm), the two-blade cap-separating mechanism has insufficient constraint force on large caps due to the point-to-line contact between the cap and the cap-separating blades, resulting in cap misalignment, jamming, or overlapping, thus affecting production efficiency. Therefore, a more stable cap-separating mechanism is urgently needed to improve the efficiency and reliability of cap-separating for large caps. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a three-blade lower cover mechanism suitable for large cover types.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A three-blade lower cover mechanism suitable for large cover type includes a support plate, a material drop hole is opened on the top of the support plate, a base is fixedly installed on the top of the support plate, and a material discharge hole is opened at the center of the base corresponding to the material drop hole;

[0007] The base has three evenly distributed mounting ports on the outer circumference of the discharge hole. Each mounting port has a cover-splitting wheel. The inner wall of the base has a notch corresponding to the discharge hole that communicates with the three mounting ports. The outer circumference of the three cover-splitting wheels extends into the discharge hole through the notch.

[0008] The three cover-splitting rollers are evenly distributed along the outer periphery of the discharge hole to support the stacked columnar covers. The outer circumference of each cover-splitting roller is provided with a spiral cutting edge. The base is provided with a drive device that drives the three cover-splitting rollers to rotate in the same direction. The cover is discharged one by one through the rotation of the spiral cutting edge.

[0009] As a further description of the above technical solution: the driving device includes a drive motor and a motor frame, the motor frame is fixedly installed on the top of the support plate, the drive motor is fixedly installed on the bottom of the motor frame, and the output shaft of the drive motor extends to the top of the motor frame and is fixedly connected to a synchronous pulley;

[0010] The base is fixedly installed with a cover wheel seat corresponding to each mounting port. Each cover wheel seat is rotatably connected to a rotating shaft through a bearing. The top end of each rotating shaft extends to the top of the cover wheel seat and is equipped with a synchronous pulley. All synchronous pulleys are linked by a synchronous belt. The bottom end of each rotating shaft extends to the bottom of the cover wheel seat and is connected to its corresponding cover wheel.

[0011] As a further description of the above technical solution: the support plate and / or base are provided with rotatable guide wheels, which contact the timing belt to achieve tensioning or guidance.

[0012] As a further description of the above technical solution: the top of the support plate has an opening to accommodate the drive motor, and the drive motor extends to the bottom of the support plate.

[0013] As a further description of the above technical solution: a limiting extension frame is fixedly installed on the base, and the limiting extension frame extends axially along the discharge hole.

[0014] As a further description of the above technical solution: the cover-separating wheel includes a cover-separating guide wheel and a spiral cover-separating wheel arranged coaxially, the cover-separating guide wheel being located above the spiral cover-separating wheel, and the cover-separating guide wheel being used for the initial guidance of the cover body;

[0015] The spiral dividing blade is located on the outer periphery of the spiral dividing wheel, dividing the wheel surface into dividing blades and spiral grooves. The dividing blades are used to separate stacked covers, and the spiral grooves are used for intermittent feeding.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution provides a three-blade cap-opening mechanism. By evenly arranging three cap-opening wheels on the circumference, the constraint force on the cap is enhanced using the three-point positioning principle. A synchronous drive device achieves a unified spiral rotation, and the rotational motion of the spiral blades ensures stable cap separation, preventing cap jamming or overlapping. This mechanism has a simple structure and stable operation, making it particularly suitable for automated production lines producing large caps. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0019] Figure 2 This is the second structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection between the base and the driving device of this utility model;

[0021] Figure 4 This is a schematic diagram of the drive device of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the cover-splitting wheel of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Support plate; 2. Material drop hole; 3. Base; 4. Material discharge hole; 5. Mounting port; 6. Cover splitting wheel; 61. Spiral dividing blade; 611. Cover splitting blade; 612. Spiral groove; 62. Cover splitting guide wheel; 63. Spiral cover splitting wheel; 7. Drive device; 71. Drive motor; 72. Motor frame; 73. Synchronous belt pulley; 74. Cover splitting wheel seat; 75. Rotating shaft; 76. Synchronous belt; 77. Guide wheel; 8. Limiting extension frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figure 1-2 A three-blade cap-dropping mechanism suitable for large caps includes a support plate 1. The top of the support plate 1 has a material drop hole 2 for the final material drop of the cap. A base 3 is fixedly installed on the top of the support plate 1. The center of the base 3 has a material discharge hole 4 corresponding to the material drop hole 2 for accommodating stacked caps.

[0028] Three evenly distributed mounting openings 5 ​​are provided on the base 3 and on the outer circumference of the discharge hole 4. Each mounting opening 5 is provided with a cover-splitting wheel 6. The inner wall of the base 3 is provided with a notch corresponding to the discharge hole 4, which communicates with the three mounting openings 5. Parts of the outer circumference of the three cover-splitting wheels 6 extend into the discharge hole 4 through the notch. The three cover-splitting wheels 6 are evenly distributed along the outer circumference of the discharge hole 4 to support the stacked columnar covers. The base 3 is provided with a drive device 7 that drives the three cover-splitting wheels 6 to rotate in the same direction. The cover is discharged one by one by the rotation of the cover-splitting wheels 6.

[0029] Among them, a limiting extension frame 8 is fixedly installed on the base 3. The limiting extension frame 8 extends axially along the discharge hole 4 to limit the position of the cover and prevent it from shifting.

[0030] In this embodiment, a third cap-separating wheel 6 is added to the original two-blade cap-separating mechanism, forming a "three-blade cap-separating mechanism." The three cap-separating wheels 6 are evenly distributed on a circumference and are driven by a drive device 7 to achieve a unified spiral rotation. Utilizing the geometric principle of "three points determining a circle," when the cap enters the cap-separating area, it is simultaneously contacted and guided by the spiral surfaces of the three cap-separating wheels 6. Through the synergistic effect of the three-point contact, the cap is stably separated, avoiding cap jamming or overlapping.

[0031] Example 2

[0032] Please see Figure 5 This embodiment further describes the cap-separating wheel 6 based on embodiment 1. The outer circumferential wall of the cap-separating wheel 6 is provided with a spiral dividing edge 61, which divides the wheel surface into cap-separating blades 611 and spiral grooves 612. The cap-separating blades 611 are used to separate stacked caps, and the spiral grooves 612 are used to guide the caps to be fed out one by one.

[0033] The lid-separating wheel 6 includes a lid-separating guide wheel 62 and a spiral lid-separating wheel 63. The lid-separating guide wheel 62 is located at the top and is used for the initial guidance of the lid. The spiral lid-separating blade 61 is located on the outer periphery of the spiral lid-separating wheel 63.

[0034] Example 3

[0035] Please see Figure 3-4 This embodiment further describes the drive device 7 based on Embodiment 1. The drive device 7 includes a drive motor 71 and a motor frame 72. The motor frame 72 is fixedly mounted on the top of the support plate 1. The drive motor 71 provides the power source and is typically a servo motor or a stepper motor to ensure precise control of speed and direction. The drive motor 71 is fixedly mounted on the bottom of the motor frame 72, and the output shaft of the drive motor 71 extends to the top of the motor frame 72 and is fixedly connected to a synchronous pulley 73 (drive pulley).

[0036] A cover-splitting wheel seat 74 is fixedly installed on the base 3 corresponding to each mounting port 5. A rotating shaft 75 is rotatably connected to each cover-splitting wheel seat 74 through a bearing. The top end of each rotating shaft 75 extends to the top of the cover-splitting wheel seat 74 and is equipped with a synchronous pulley 73 (driven pulley). All synchronous pulleys 73 are linked by a synchronous belt 76. The bottom end of each rotating shaft 75 extends to the bottom of the cover-splitting wheel seat 74 and is connected to its corresponding cover-splitting wheel 6.

[0037] After the drive motor 71 of the drive device 7 starts, its output shaft drives the synchronous pulley 73 connected to it to rotate. The power is transmitted to the other two synchronous pulleys 73 through the synchronous belt 76, realizing the linkage of the three pulleys. The meshing transmission characteristics of the synchronous belt 76 ensure that the speed and direction of rotation of the three synchronous pulleys 73 are completely consistent. Each rotating shaft 75 rotates synchronously under the bearing support of the cover-separating wheel seat 74, driving the cover-separating wheel 6 to rotate in the same direction. The cover-separating wheel 6 at the bottom of the rotating shaft 75 rotates with the shaft, and its spiral separating blade 61 contacts the cover. The rotational movement of the cover-separating blade 611 separates the stacked covers layer by layer and guides the covers to fall through the spiral groove 612.

[0038] The support plate 1 and / or base 3 are equipped with rotatable guide wheels 77, which contact the synchronous belt 76 to achieve tensioning or guidance. The rotatable guide wheels 77 apply controllable pressure to the synchronous belt 76, ensuring that the synchronous belt 76 always maintains optimal tension, and also avoiding the decrease in transmission efficiency or slippage caused by the slack of the synchronous belt 76, thus significantly improving the stability of power transmission.

[0039] In addition, an opening is made at the top of the support plate 1 to accommodate the drive motor 71, and part of the drive motor 71 extends to the bottom of the support plate 1, so that part of the drive motor 71 is recessed under the support plate 1, thus optimizing the spatial layout.

[0040] Working principle:

[0041] The stacked cover is vertically placed into the material discharge hole 4 of the base 3, and the bottom is supported by the spiral cover-separating wheels 63 of the three cover-separating wheels 6;

[0042] The drive motor 71 starts and drives the three cover rollers 6 to rotate in the same direction through the transmission of the synchronous belt 76;

[0043] The rotational motion of the spiral cap-dispensing wheel 63 and the spiral cap-dispensing blade 61 feeds the cap body one by one, and outputs it through the discharge hole 2.

[0044] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A three-blade lower cover mechanism suitable for large-cap type, comprising a support plate (1), characterized in that: The top of the support plate (1) is provided with a material drop hole (2), and a base (3) is fixedly installed on the top of the support plate (1). The center of the base (3) is provided with a material discharge hole (4) corresponding to the material drop hole (2). The base (3) has three evenly distributed mounting ports (5) on its outer circumference of the discharge hole (4). Each mounting port (5) has a cover-splitting wheel (6). The inner wall of the base (3) has a notch corresponding to the discharge hole (4) that communicates with the three mounting ports (5). The outer circumference of the three cover-splitting wheels (6) extends into the discharge hole (4) through the notch. The three cover-splitting wheels (6) are evenly distributed along the outer periphery of the discharge hole (4) to support the stacked columnar cover bodies. The outer circumferential wall of the cover-splitting wheels (6) is provided with a spiral cutting edge (61). The base (3) is provided with a driving device (7) that drives the three cover-splitting wheels (6) to rotate in the same direction. The cover bodies are discharged one by one through the rotation of the spiral cutting edge (61).

2. The three-blade lower cover mechanism suitable for large-cap type according to claim 1, characterized in that: The drive device (7) includes a drive motor (71) and a motor frame (72). The motor frame (72) is fixedly installed on the top of the support plate (1). The drive motor (71) is fixedly installed on the bottom of the motor frame (72). The output shaft of the drive motor (71) extends to the top of the motor frame (72) and is fixedly connected to a synchronous pulley (73). The base (3) is fixedly installed with a cover wheel seat (74) corresponding to each mounting port (5). Each cover wheel seat (74) is rotatably connected to a rotating shaft (75) through a bearing. The top of each rotating shaft (75) extends to the top of the cover wheel seat (74) and is equipped with a synchronous pulley (73). All synchronous pulleys (73) are linked by a synchronous belt (76). The bottom of each rotating shaft (75) extends to the bottom of the cover wheel seat (74) and is connected to its corresponding cover wheel (6).

3. A three-blade lower cover mechanism suitable for large-cap type according to claim 2, characterized in that: The support plate (1) and / or base (3) are provided with rotatable guide wheels (77), which contact the timing belt (76) to achieve tensioning or guidance.

4. A three-blade lower cover mechanism suitable for large-cap type according to claim 2, characterized in that: The support plate (1) has an opening at the top to accommodate the drive motor (71), and the drive motor (71) extends to the bottom of the support plate (1).

5. A three-blade lower cover mechanism suitable for large-cap type according to claim 1, characterized in that: A limiting extension frame (8) is fixedly installed on the base (3), and the limiting extension frame (8) extends axially along the discharge hole (4).

6. A three-blade lower cover mechanism suitable for large-cap type according to claim 1, characterized in that: The lid-separating wheel (6) includes a lid-separating guide wheel (62) and a spiral lid-separating wheel (63) arranged coaxially. The lid-separating guide wheel (62) is located above the spiral lid-separating wheel (63) and is used for the initial guidance of the lid. The spiral dividing blade (61) is located on the outer periphery of the spiral dividing wheel (63), dividing the wheel surface into a dividing blade (611) and a spiral groove (612). The dividing blade (611) is used to separate stacked covers, and the spiral groove (612) is used for intermittent feeding.

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