A swing arm type cap screwing machine for medicine processing

By using equidistant adjustment components and clamp spacing adjustment components, the problem of low efficiency in changing bottle caps of different specifications in traditional rocker arm capping machines has been solved, achieving rapid adaptation and stable clamping, thus improving the efficiency and stability of the production line.

CN224530574UActive Publication Date: 2026-07-21GUIZHOU SHENGDE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIZHOU SHENGDE MASCH CO LTD
Filing Date
2025-09-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional pharmaceutical processing using rocker arm capping machines requires additional tools to adjust the clamping distance when changing caps of different sizes, resulting in low production efficiency. Furthermore, different bottle sizes can cause cap misalignment, affecting the stability of the production line.

Method used

Employing equidistant adjustment components and clamp spacing adjustment components, the sliding frame position can be quickly adjusted by pressing the plug to release the limit and moving the sliding frame. Combined with servo motor-driven rotation and lifting electric cylinder lifting, it can quickly adapt to and stably clamp bottle caps of different sizes.

Benefits of technology

The process of adjustment was simplified, production efficiency was improved, and the rapid adaptation of bottle caps of different specifications and the stability of capping were ensured, while reducing manual rework and economic losses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a swing arm formula cap screwing machine for medicine processing relates to medicine processing technical field, and the utility model discloses a machine table, the fixed frame is fixedly installed to the middle part of one side of machine table top, and the two symmetrical distribution's movable frame of two movable frame is equipped with in the fixed frame both sides through the slide rail sliding of fixed frame one side close, and the equal distance adjusting assembly that is used with movable frame is equipped with on the fixed frame, and three cap drive components are equipped with on equal distance adjusting assembly, and the fixture spacing adjusting assembly is equipped with on cap drive component, the utility model discloses setting fixture spacing adjusting assembly, and the operator does not need to help additional tool, and only through pressing the simple operation of plug-in bolt release limit, remove the sliding frame, loosen the plug-in bolt and complete positioning, can quickly adjust the position of sliding frame on the drive frame, and then accurate adjustment moving block's clamping spacing, and high -efficient adaptation different specifications bottle cap, and greatly simplify the adjustment process, reduce the time -consuming of change production, and improve production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical processing technology, specifically to a rocker arm capping machine for pharmaceutical processing. Background Technology

[0002] The rocker arm capping machine for pharmaceutical processing is an automated packaging equipment designed specifically for pharmaceutical production scenarios. It can grab, align, and tighten the caps of various pharmaceutical containers to ensure the sealing, safety, and standardization of pharmaceutical packaging. Different drug specifications are used in different drug production processes, which in turn leads to different bottle cap specifications that need to be clamped. Operators need to use additional tools such as wrenches and screwdrivers to disassemble the clamping structure and adjust the clamping distance of the moving blocks. Traditional tool adjustment requires disassembling and calibrating each fixed component of the moving blocks one by one, which is time-consuming and significantly reduces the efficiency of production line changeover. Secondly, different bottle body specifications result in different bottle cap calibration distances on the production line. If not adjusted in time, it will cause misalignment between the bottle body and the bottle cap, and the clamping range of adjacent capping components will overlap, making it impossible to fit the bottle cap, requiring manual rework and resulting in direct economic losses. In order to solve the above problems, the inventor proposes a rocker arm capping machine for drug processing. Utility Model Content

[0003] To address the issues of quickly adapting to and adjusting the production spacing of bottle caps of different specifications during the production process, this utility model aims to provide a rocker arm capping machine for pharmaceutical processing.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a rocker arm capping machine for pharmaceutical processing, comprising a machine base, a fixed frame fixedly installed on the middle of one side of the top of the machine base, two symmetrically distributed movable frames slidably arranged on the top of the machine base near the fixed frame via a slide rail, and the two movable frames being located on both sides of the fixed frame, the fixed frame being provided with an equidistant adjustment component that cooperates with the movable frames, the equidistant adjustment component being provided with three capping drive components, and the capping drive component being provided with a clamp spacing adjustment component.

[0005] Preferably, the capping drive assembly includes a drive frame and a drive shaft. The drive frame is mounted on an equidistant adjustment assembly, and the drive shaft is rotatably mounted on the drive frame via bearings. A base is fixedly mounted at the bottom of the drive shaft, and four movable blocks arranged in a circular array are slidably mounted on the base. A sliding cylinder is slidably fitted on the outer wall of the drive shaft, and four connecting arms arranged in a circular array are rotatably mounted on the outer wall of the sliding cylinder. The other end of the connecting arm is rotatably hinged to the top of the corresponding movable block. A guide ring is slidably fitted on the outer wall of the drive shaft, and the bottom end of the guide ring is fixedly connected to the top of the sliding cylinder. A drive cylinder is fixedly mounted on one side of the outer wall of the drive frame. A guide frame is vertically slidably mounted on the drive frame, and the bottom of the guide frame is U-shaped and embedded in the sliding groove of the outer wall of the guide ring. The drive end of the drive cylinder is fixedly connected to the guide frame. Four limit bolts arranged in a circular array and used in conjunction with the sliding cylinder are fixedly mounted on the outer wall of the drive shaft. The three drive frames are respectively fixedly mounted on the outer middle of the corresponding active lifting platform and driven lifting platform by bolts. A servo motor is fixedly mounted on the top of the drive frame, and the drive end of the servo motor is connected to the drive shaft via a coupling.

[0006] Preferably, the clamp spacing adjustment assembly includes a sliding frame and a limiting frame. The sliding frame is slidably sleeved on the outer wall of the drive frame, and the limiting frame is fixedly installed in the middle of the sliding frame. A plug is inserted through the limiting frame, and a circular plate is fixedly sleeved on the outer wall of the plug. A spring is sleeved on the outer wall of the plug, and the two ends of the spring are fixedly connected to the inner wall of the limiting frame and the top of the circular plate, respectively. A clamping frame is securely installed on the outer wall of the sliding frame by bolts. Multiple sets of four equally spaced guide posts that cooperate with the sliding frame are fixedly installed on the top of the base. The spacing between the guide posts is the same as the spacing between the limiting grooves.

[0007] Preferably, the equidistant adjustment assembly includes three equidistantly distributed fixed pins and two long rods with their middle sections intersecting. The three fixed pins are respectively fixedly installed on the outer middle of the corresponding fixed frame and movable frame. The two long rods are rotatably installed on the middle fixed pin at their middle intersection. Both ends of the long rods are rotatably hinged to short rods, and the other ends of the short rods are rotatably installed on the fixed pins in the corresponding movable frame. A lead screw linear electric cylinder is fixedly installed on one side of the top of the machine platform, and the driving end of the lead screw linear electric cylinder is fixedly connected to one side of the movable frame. Two symmetrically distributed lifting guide rods are fixedly installed on the top of both the fixed frame and the movable frame. An active lifting platform is vertically slidably provided on the outer wall of the lifting guide rod at the top of the fixed frame, and a driven lifting platform is vertically slidably provided on the outer wall of the lifting guide rod at the top of the movable frame. Fixed sliding rods are fixedly installed on the middle of both sides of the active lifting platform, and the fixed sliding rods slide through the driven lifting platform. A top plate is fixedly installed on the top of the lifting guide rod on one side of the active lifting platform, and a lifting electric cylinder is fixedly installed on the top of the top plate, and the driving end of the lifting electric cylinder is fixedly connected to the top of the active lifting platform.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting up a clamp spacing adjustment component, the operator can quickly adjust the position of the sliding frame on the drive frame by simply pressing the plug to release the limit, moving the sliding frame, and releasing the plug to complete the positioning without the need for additional tools. This allows for precise adjustment of the clamping spacing of the moving block, efficiently adapting to bottle caps of different specifications, greatly simplifying the adjustment process, reducing changeover time, and improving production efficiency. 2. By setting up an equidistant adjustment component, this utility model can quickly adjust the distance between the fixed frame and the movable frame. At the same time, under the action of the fixed slide rod, after the driven lifting platform completes the distance adjustment, the active lifting platform can still drive the driven lifting platform to lift synchronously, ensuring the stability of the cap. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram of the overall rear structure of this utility model; Figure 3 This is a schematic diagram of the screw cap drive assembly in this utility model; Figure 4 This is a schematic diagram of the screw cap drive assembly in this utility model. Figure 5 This is a schematic diagram of the drive shaft and base in this utility model; Figure 6 This is a schematic diagram of the structure of the intermediate distance adjustment component of this utility model; Figure 7 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0011] In the diagram: 1. Machine base; 2. Fixed frame; 3. Moving frame; 4. Equidistant adjustment assembly; 41. Fixed pin; 42. Long rod; 43. Short rod; 44. Lead screw linear electric cylinder; 45. Lifting guide rod; 46. Active lifting platform; 47. Driven lifting platform; 48. Fixed slide rod; 49. Top plate; 410. Lifting electric cylinder; 5. Capping drive assembly; 51. Drive frame; 52. Drive shaft; 53. Base; 54. Moving block; 55. Sliding cylinder; 56. Connecting arm; 57. Guide ring; 58. Guide frame; 59. Drive electric cylinder; 510. Limit bolt; 511. Servo motor; 6. Fixture spacing adjustment assembly; 61. Sliding frame; 62. Limit frame; 63. Insert bolt; 64. Circular plate; 65. Spring; 66. Limit groove; 67. Pointing column; 68. Clamping frame. Detailed Implementation

[0012] 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.

[0013] like Figure 1-8 As shown, this utility model provides a rocker arm capping machine for pharmaceutical processing, including a machine base 1. A fixed frame 2 is fixedly installed on the middle of one side of the top of the machine base 1. Two symmetrically distributed movable frames 3 are slidably arranged on the top of the machine base 1 near the fixed frame 2 via a slide rail. The two movable frames 3 are located on both sides of the fixed frame 2. The fixed frame 2 is provided with an equidistant adjustment component 4 that cooperates with the movable frames 3. The equidistant adjustment component 4 is provided with three capping drive components 5. The capping drive components 5 are provided with a clamp spacing adjustment component 6. The capping drive assembly 5 includes a drive frame 51 and a drive shaft 52. The drive frame 51 is mounted on the equidistant adjustment assembly 4. The drive shaft 52 is rotatably mounted on the drive frame 51 via bearings. A base 53 is fixedly mounted on the bottom end of the drive shaft 52. Four moving blocks 54 arranged in a circular array are slidably arranged on the base 53. A sliding cylinder 55 is slidably sleeved on the outer wall of the drive shaft 52. Four connecting arms 56 arranged in a circular array are rotatably arranged on the outer wall of the sliding cylinder 55. The other end of the connecting arm 56 is rotatably hinged to the top of the corresponding moving block 54. The clamp spacing adjustment assembly 6 includes a sliding frame 61 and a limiting frame 62. The sliding frame 61 is slidably sleeved on the outer wall of the drive frame 51. The limiting frame 62 is fixedly installed in the middle of the sliding frame 61. A plug 63 is inserted through the limiting frame 62. A circular plate 64 is fixedly sleeved on the outer wall of the plug 63. A spring 65 is sleeved on the outer wall of the plug 63, and the two ends of the spring 65 are fixedly connected to the inner wall of the limiting frame 62 and the top of the circular plate 64, respectively.

[0014] By adopting the above technical solution

[0015] The equidistant adjustment component 4 includes three equidistant fixed pins 41 and two long rods 42 with their middle parts intersecting. The three fixed pins 41 are respectively fixedly installed on the outer middle of the corresponding fixed frame 2 and the movable frame 3. The two long rods 42 are rotatably installed on the middle fixed pin 41 at their middle intersection. Both ends of the long rods 42 are rotatably hinged with short rods 43, and the other end of the short rods 43 is rotatably installed on the fixed pins 41 in the corresponding movable frame 3. A lead screw linear electric cylinder 44 is fixedly installed on one side of the top of the machine base 1, and the driving end of the lead screw linear electric cylinder 44 is fixedly connected to one side of the movable frame 3.

[0016] By adopting the above technical solution, the clamp spacing adjustment component 6 drives the four moving blocks 54 to move synchronously towards the center for clamping and fixing. The position of the clamping frame 68 on the moving blocks 54 is quickly adjusted by the equidistant adjustment component 4, thereby quickly adapting to the installation of bottle caps of different specifications.

[0017] A guide ring 57 is slidably sleeved on the outer wall of the drive shaft 52, and the bottom end of the guide ring 57 is fixedly connected to the top end of the sliding cylinder 55. A drive electric cylinder 59 is fixedly installed on one side of the outer wall of the drive frame 51. A guide frame 58 is vertically slidably installed on the drive frame 51, and the bottom of the guide frame 58 is U-shaped and embedded in the sliding groove of the outer wall of the guide ring 57. The drive end of the drive electric cylinder 59 is fixedly connected to the guide frame 58.

[0018] By adopting the above technical solution, the guide ring 57 can rotate on the guide frame 58 during the process of the drive electric cylinder 59 being raised and lowered through the guide frame 58 and the guide ring 57.

[0019] Four limit bolts 510 arranged in a ring array and used in conjunction with the sliding cylinder 55 are fixedly installed on the outer wall of the drive shaft 52.

[0020] By adopting the above technical solution, the sliding cylinder 55 is limited by the limiting bolt 510, so that the sliding cylinder 55 slides vertically in one direction on the outer wall of the drive shaft 52.

[0021] A clamping frame 68 is securely installed on the outer wall of the sliding frame 61 by bolts. Multiple sets of four equally spaced guide posts 67 are fixedly installed on the top of the base 53 to cooperate with the sliding frame 61. The spacing between the guide posts 67 is the same as the spacing between the limiting grooves 66.

[0022] By adopting the above technical solution, the four pointing columns 67 are respectively set with different colors to correspond to different bottle cap sizes, which facilitates the adjustment and observation of the sliding frame 61.

[0023] Both the fixed frame 2 and the movable frame 3 have two symmetrically distributed lifting guide rods 45 fixedly installed at their top ends. The outer wall of the lifting guide rod 45 at the top end of the fixed frame 2 is vertically slidably provided with an active lifting platform 46. The outer wall of the lifting guide rod 45 at the top end of the movable frame 3 is vertically slidably provided with a driven lifting platform 47. A top plate 49 is fixedly installed at the top end of the lifting guide rod 45 on one side of the active lifting platform 46. A lifting electric cylinder 410 is fixedly installed at the top end of the top plate 49, and the drive end of the lifting electric cylinder 410 is fixedly connected to the top end of the active lifting platform 46.

[0024] By adopting the above technical solution, the active lifting platform 46 and the driven lifting platform 47 can move stably under the guidance of the corresponding lifting guide rods 45.

[0025] Fixed slide rods 48 are fixedly installed on the middle of both sides of the active lifting platform 46, and the fixed slide rods 48 slide through the driven lifting platform 47.

[0026] By adopting the above technical solution, the active lifting platform 46 can move up and down synchronously through the fixed slide bar 48 during the lifting process.

[0027] Three drive frames 51 are securely mounted on the outer middle of the corresponding active lifting platform 46 and driven lifting platform 47 by bolts. A servo motor 511 is fixedly mounted on the top of the drive frame 51, and the drive end of the servo motor 511 is connected to the drive shaft 52 through a coupling.

[0028] By adopting the above technical solution, the servo motor 511 drives the shaft 52 to rotate through the coupling.

[0029] Working principle: In the actual production process, the spacing of the three adjusting capping drive components 5 is adjusted to control the opening of the lead screw linear electric cylinder 44. The lead screw linear electric cylinder 44 drives one side of the moving frame 3 to move. With the cooperation of the long rod 42, the short rod 43 and the fixing pin 41, it drives another moving frame 3 to move synchronously to the other side, thereby adjusting the spacing of the three capping drive components 5 to adapt to different specifications of medicine bottles. Then, adjust the position of the clamping frame 68, pull the plug 63 outward to separate the plug 63 from the limiting groove 66, release the limitation on the sliding frame 61, manually move the sliding frame 61 so that the clamping frame 68 corresponds to the corresponding color pointing post 67, release the plug 63, the spring 65 resets and pushes the plug 63 into the limiting groove 66 of the sliding frame 61 through the round plate 64, fix the sliding frame 61, thereby adjusting the spacing of the moving block 54 to adapt to bottle caps of different specifications; Then, the drive end of the electric cylinder 59 extends, and the guide frame 58 and guide ring 57 drive the sliding cylinder 55 to rise and fall vertically. The sliding cylinder 55 drives the moving block 54 to move closer or further away from the center through the connecting arm 56, so as to clamp or release the bottle cap. Finally, the servo motor 511 drives the shaft 52 to rotate through the coupling. The drive shaft 52 drives the base 53 and the clamped bottle cap to rotate. At the same time, the lifting cylinder 410 pushes the active lifting platform 46 and the driven lifting platform 47 to rise and fall under the guidance of the lifting guide rod 45 and the fixed slide rod 48 to complete the capping action.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rocker arm capping machine for pharmaceutical processing, comprising a machine base (1), characterized in that: A fixed frame (2) is fixedly installed on the middle of one side of the top of the machine (1). Two symmetrically distributed movable frames (3) are slidably provided on the top of the machine (1) near the fixed frame (2) via a slide rail. The two movable frames (3) are located on both sides of the fixed frame (2). The fixed frame (2) is provided with an equidistant adjustment component (4) that works in conjunction with the movable frames (3). The equidistant adjustment component (4) is provided with three capping drive components (5). The capping drive component (5) is provided with a clamp spacing adjustment component (6). The capping drive assembly (5) includes a drive frame (51) and a drive shaft (52). The drive frame (51) is mounted on the equidistant adjustment assembly (4). The drive shaft (52) is rotatably mounted on the drive frame (51) via a bearing. A base (53) is fixedly mounted on the bottom end of the drive shaft (52). Four moving blocks (54) arranged in a circular array are slidably arranged on the base (53). A sliding cylinder (55) is slidably sleeved on the outer wall of the drive shaft (52). Four connecting arms (56) arranged in a circular array are rotatably arranged on the outer wall of the sliding cylinder (55). The other end of the connecting arm (56) is rotatably hinged to the top of the corresponding moving block (54). The clamp spacing adjustment assembly (6) includes a sliding frame (61) and a limiting frame (62). The sliding frame (61) is slidably sleeved on the outer wall of the drive frame (51). The limiting frame (62) is fixedly installed in the middle of the sliding frame (61). A plug (63) is inserted through the limiting frame (62). A circular plate (64) is fixedly sleeved on the outer wall of the plug (63). A spring (65) is sleeved on the outer wall of the plug (63), and the two ends of the spring (65) are fixedly connected to the inner wall of the limiting frame (62) and the top of the circular plate (64) respectively.

2. The rocker arm capping machine for pharmaceutical processing as described in claim 1, characterized in that, The equidistant adjustment component (4) includes three equidistant fixed pins (41) and two long rods (42) with their middle parts intersecting. The three fixed pins (41) are respectively fixedly installed on the middle outer side of the corresponding fixed frame (2) and the moving frame (3). The two long rods (42) are rotatably installed on the middle fixed pin (41) at the intersection of their middle parts. Both ends of the long rods (42) are rotatably hinged with short rods (43), and the other end of the short rods (43) is rotatably installed on the fixed pins (41) in the corresponding moving frame (3). A lead screw linear electric cylinder (44) is fixedly installed on one side of the top of the machine base (1), and the drive end of the lead screw linear electric cylinder (44) is fixedly connected to the moving frame (3) on one side.

3. The rocker arm capping machine for pharmaceutical processing as described in claim 1, characterized in that, The outer wall of the drive shaft (52) is slidably fitted with a guide ring (57), and the bottom end of the guide ring (57) is fixedly connected to the top end of the sliding cylinder (55). A drive electric cylinder (59) is fixedly installed on one side of the outer wall of the drive frame (51). A guide frame (58) is vertically slidably installed on the drive frame (51), and the bottom of the guide frame (58) is U-shaped and embedded in the sliding groove of the outer wall of the guide ring (57). The drive end of the drive electric cylinder (59) is fixedly connected to the guide frame (58).

4. The rocker arm capping machine for pharmaceutical processing as described in claim 1, characterized in that, The outer wall of the drive shaft (52) is fixedly equipped with four limit bolts (510) arranged in a ring array and used in conjunction with the sliding cylinder (55).

5. The rocker arm capping machine for pharmaceutical processing as described in claim 1, characterized in that, The outer wall of the sliding frame (61) is securely fitted with a clamping frame (68) by bolts. The top of the base (53) is fixedly fitted with a number of four equally spaced guide posts (67) that cooperate with the sliding frame (61). The spacing between the guide posts (67) is the same as the spacing between the limiting grooves (66).

6. The rocker arm capping machine for pharmaceutical processing as described in claim 1, characterized in that, The top of both the fixed frame (2) and the movable frame (3) are fixedly installed with two symmetrically distributed lifting guide rods (45). The outer wall of the lifting guide rod (45) at the top of the fixed frame (2) is vertically slidably provided with an active lifting platform (46). The outer wall of the lifting guide rod (45) at the top of the movable frame (3) is vertically slidably provided with a driven lifting platform (47). The top of the lifting guide rod (45) on one side of the active lifting platform (46) is fixedly installed with a top plate (49). The top of the top plate (49) is fixedly installed with a lifting electric cylinder (410), and the driving end of the lifting electric cylinder (410) is fixedly connected to the top of the active lifting platform (46).

7. A rocker arm capping machine for pharmaceutical processing as described in claim 6, characterized in that, Fixed slide rods (48) are fixedly installed on the middle of both sides of the active lifting platform (46), and the fixed slide rods (48) slide through the driven lifting platform (47).

8. The rocker arm capping machine for pharmaceutical processing as described in claim 1, characterized in that, The three drive frames (51) are respectively fixedly installed on the outer middle of the corresponding active lifting platform (46) and driven lifting platform (47) by bolts. A servo motor (511) is fixedly installed on the top of the drive frame (51), and the drive end of the servo motor (511) is connected to the drive shaft (52) through a coupling.