Capsule production anti-collapse device

Abstract

The application relates to a capsule production anti-collapse device which comprises a draw base assembly, a moving seat assembly and a clamping assembly; the draw base assembly is provided with a positioning part; the moving seat assembly is slidably installed on the draw base assembly and is driven to reciprocate by a first driving mechanism; and the clamping assembly is hingedly installed on the moving seat assembly and is driven to open and close by a second driving mechanism. During operation, the second driving mechanism drives the clamping assembly to close and hold the mold needle, the first driving mechanism drives the moving seat assembly to linearly retreat away from the positioning part, and the capsule is smoothly pulled out from the mold along the axial direction. The application has the advantages that: through the working mode of clamping first and then linearly pulling out, the capsule is uniformly stressed, the capsule is effectively prevented from being collapsed due to internal vacuum when being pulled out at high speed, the mold drawing precision is high, the product yield is high, and the capsule surface and the mold surface are not damaged.

Description

Technical Field

[0001] This invention relates to a device for preventing capsule collapse during capsule production, belonging to the field of capsule production equipment. Background Technology

[0002] During capsule production, the formed capsules are placed on the die pins of the mold. The capsules need to be pulled out of the die pins by a capsule removal device before entering subsequent testing, packaging and other processes.

[0003] With the continuous increase in the operating speed of capsule production lines, the production efficiency of capsule extraction devices faces increasingly higher requirements. Traditional capsule production lines typically operate at a speed of 28-35 rods / minute, while modern high-speed capsule production lines have increased to 50-60 rods / minute or even higher. With the increased production speed, capsule extraction time is significantly shortened, but the difficulty of extraction increases significantly, frequently resulting in extraction failures. This is especially true for large capsules such as #00, due to their large volume and the large contact area between the capsule wall and the mold needles. When the capsule is instantly pulled from the mold, the inside of the capsule is easily sucked in due to the instantaneous vacuum, causing capsule deformation and severely affecting the yield of the finished capsules.

[0004] In the prior art, several capsule pre-demolding devices have been proposed. For example, Chinese patent CN223278354U discloses a capsule pre-demolding device, which uses a pair of soft plates to rub the capsule on opposite sides, causing the capsule to rotate on the mold and loosen, thereby achieving pre-demolding.

[0005] For example, Chinese patent CN223030179U discloses a capsule pre-demolding device, which uses the energy stored in the energy storage spring plate to drive the clamped capsule to be pulled out of the mold and loosen, thereby achieving pre-demolding.

[0006] However, the aforementioned existing technologies have the following shortcomings: First, existing pre-demolding devices only loosen capsules through rubbing or impact, without offering any solutions to the problem of capsules collapsing. As production line speeds continue to increase, the problem of capsule collapse is becoming increasingly prominent, and existing pre-demolding devices cannot meet the demands of preventing collapse during high-speed production.

[0007] Secondly, the pre-demolding device that uses a soft plate rubbing method has the soft plate rubbing back and forth on the capsule surface, which can easily cause scratches on the capsule surface, affecting the smoothness of the capsule surface and reducing the appearance quality of the product.

[0008] Third, the pre-demolding device that uses the energy storage spring plate impact method has a high material hardness because the energy storage spring plate needs to store and release energy. During the impact demolding process, it is easy to cause scratches on the mold surface, which not only affects the service life of the mold, but the burrs generated by the scratches may also further damage the capsules produced later.

[0009] Fourth, existing pre-demolding devices mostly adopt passive or mechanical control methods, resulting in low demolding accuracy, inability to intelligently adjust the working state according to actual production conditions, and complex structure, making implementation inconvenient.

[0010] Therefore, there is an urgent need for a capsule production anti-collapse device that can adapt to the needs of high-speed capsule production lines, effectively prevent capsules from collapsing while achieving efficient demolding, and does not damage the capsule surface or the mold surface. Summary of the Invention

[0011] To overcome the shortcomings of existing technologies, this invention provides a capsule production anti-collapse device. The technical solution of this invention is as follows: A capsule manufacturing anti-collapse device, comprising: A draft mold base assembly (1) is provided with a positioning part (19) for positioning the mold. The movable seat assembly (2) is slidably mounted on the draft base assembly (1). A first drive mechanism is provided on the draft base assembly (1). The first drive mechanism is connected to the movable seat assembly (2) for driving the movable seat assembly (2) to reciprocate in a direction close to or away from the positioning part (19). The clamping assembly (3) is closably mounted on the movable seat assembly (2). The clamping assembly (3) has a first clamping member and a second clamping member disposed opposite to each other. The movable seat assembly (2) is provided with a second driving mechanism (20). The second driving mechanism (20) is connected to the clamping assembly (3) for driving the first clamping member and the second clamping member to perform opening and closing actions. After the first clamping member and the second clamping member close and clamp the capsule on the mold, the first driving mechanism drives the moving seat assembly (2) to move away from the positioning part (19) to pull the capsule off the mold.

[0012] The draft base assembly (1) includes a base (10-0), a side plate (10), and a center seat (19). The side plate (10) and the center seat (19) are both mounted on the base (10-0), and the center seat (19) constitutes the positioning part. The first driving mechanism includes a draft drive motor (11) and a lead screw (16). The draft drive motor (11) is mounted on the side plate (10). The input end of the lead screw (16) is connected to the motor shaft of the draft drive motor (11). The fixed end of the lead screw (16) is mounted on the bottom end of the center seat (19) through the lead screw fixed end (18).

[0013] The draft mold base assembly (1) further includes a first guide rail (17) and a lead screw nut fixing plate (14). The first guide rail (17) is installed on the top of the side plate (10). The lead screw (16) is connected to the motor shaft of the draft mold drive motor (11) through a coupling (15). The lead screw nut on the lead screw (16) is fixedly connected to the lead screw nut fixing plate (14). The lead screw nut fixing plate (14) is used to fixally connect to the movable seat assembly (2) so as to drive the movable seat assembly (2) to move synchronously with the lead screw nut.

[0014] The movable seat assembly (2) includes a mounting base plate (28) and a first slider (29). The first slider (29) is mounted on both sides of the mounting base plate (28). The first slider (29) is slidably engaged with the first guide rail (17). The mounting base plate (28) is fixedly connected to the lead screw nut fixing plate (14). The drafting drive motor (11) drives the mounting base plate (28) to slide back and forth along the first guide rail (17) through the lead screw (16).

[0015] The movable seat assembly (2) further includes a left front side plate (23), a left rear side plate (24), an upper end plate (22), a second guide rail (25), a reducer (21), and a drive gear (27). The lower ends of the left front side plate (23) and the left rear side plate (24) are respectively fixedly connected to the mounting base plate (28). The upper ends of the left front side plate (23) and the left rear side plate (24) are both connected to the upper end plate (22). The second guide rail (25) is installed on the left front side plate (23) and the left rear side plate (24). The clamp drive motor (20) is connected to the reducer (21). The clamp drive motor (20) and the reducer (21) are fixed together with the left front side plate (23) and the left rear side plate (24) through the mounting plate (26). The drive gear (27) is installed on the shaft of the reducer (21).

[0016] The clamping assembly (3) further includes a second slider (39), a rack (38), an upper rack fixing plate (36), a lower rack fixing plate (37), an upper left slider fixing plate (32), an upper right slider fixing plate (34), a lower left slider fixing plate (33), a lower right slider fixing plate (35), and a clamp mounting plate assembly (30). The second slider (39) is slidably engaged with the second guide rail (25) of the movable seat assembly (2). The rack (38) meshes with the drive gear (27). The rack (38) passes through the upper rack fixing plate (36) and the lower rack fixing plate (37). One end of the upper rack fixing plate (36) is connected to the upper left slider fixing plate (32), and the other end is connected to the upper right slider fixing plate (34). One end of the lower rack fixing plate (37) is connected to the lower left slider fixing plate (33), and the other end is connected to the lower right slider fixing plate (35). The second slider (39) is installed on the upper left slider fixing plate (32), the lower left slider fixing plate (33), the upper right slider fixing plate (34), and the lower right slider fixing plate (35). The clamp mounting plate assembly (30) is fixedly connected to the upper left slider fixing plate (32), the upper right slider fixing plate (34), the lower left slider fixing plate (33), and the lower right slider fixing plate (35). The clamp drive motor (20) drives the rack (38) to move up and down through the drive gear (27). The rack (38) drives the clamp mounting plate assembly (30) to move synchronously through the upper rack fixing plate (36), the lower rack fixing plate (37), the upper left slider fixing plate (32), the upper right slider fixing plate (34), the lower left slider fixing plate (33), and the lower right slider fixing plate (35). The first clamping member and the second clamping member are both installed on the clamp mounting plate assembly (30).

[0017] The clamp mounting plate assembly (30) includes an upper clamp beam (301) and a lower clamp beam (302), with an upper clamp forming the first clamping member mounted on the upper clamp beam (301) and a lower clamp forming the second clamping member mounted on the lower clamp beam (302).

[0018] The upper clamp crossbeam (301) is composed of several long clamps (303) and several short clamps (304) arranged alternately, and the lower clamp crossbeam (302) is composed of several long clamps (303) and several short clamps (304) arranged alternately. Each of the long clamps (303) and each of the short clamps (304) is equipped with a release plate (305).

[0019] It also includes a shape detection sensor, which is installed at the finished capsule exit position to detect whether the capsule has a suck-down defect after being pulled out, and controls the start or stop of the anti-suck-down device based on the detection result.

[0020] Both the first clamping member and the second clamping member are made of beryllium bronze.

[0021] The advantages of this invention are: it adapts to the high-speed production needs of modern capsule machines, solves the problem of capsules collapsing during high-speed production, significantly reduces the difficulty of capsule extraction, and improves extraction efficiency; it increases the success rate and yield of capsule extraction, reduces wear on the extraction plates, and lowers production costs. The material used for extraction in this invention is wear-resistant beryllium bronze, which will not scratch the mold surface and does not affect the surface finish of the capsules; it uses servo drive for high extraction precision; it is simple and convenient to implement for both single-row and double-row mold pins; and it can automatically identify the extraction status of the production line and intelligently control its opening and closing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure of the draft mold base assembly.

[0024] Figure 3 yes Figure 1 A schematic diagram of the structure of the clamp motor mount assembly.

[0025] Figure 4 yes Figure 3 Another perspective diagram.

[0026] Figure 5 yes Figure 1 A schematic diagram of the middle clamp assembly.

[0027] Figure 6 yes Figure 5 A schematic diagram of the middle clamp plate mounting assembly.

[0028] Figure 7 This is a schematic diagram of the double-row mold of the present invention in operation. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solutions of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0030] See Figures 1 to 7This invention relates to a capsule production anti-collapse device, comprising: a draft mold base assembly 1, on which a positioning part 19 for positioning a mold is provided; and a movable seat assembly 2, slidably mounted on the draft mold base assembly 1, on which a first driving mechanism is provided, the first driving mechanism being convexly connected to the movable seat assembly 2 for driving the movable seat assembly 2 to reciprocate in a direction approaching or away from the positioning part 19. The clamping assembly 3 is closably mounted on the movable base assembly 2. The clamping assembly 3 has a first clamping member and a second clamping member disposed opposite to each other. The movable base assembly 2 is provided with a second driving mechanism 20, which is connected to the clamping assembly 3 for driving the first clamping member and the second clamping member to perform opening and closing actions. After the first clamping member and the second clamping member close and clamp the capsule on the mold, the first driving mechanism drives the moving seat assembly 2 to move away from the positioning part 19 to pull the capsule off the mold.

[0031] The movable seat assembly 2 is slidably mounted on the draft base assembly 1. The first drive mechanism on the draft base assembly 1 drives the movable seat assembly 2 to reciprocate in the direction of approaching or moving away from the positioning part 19. The clamping assembly 3 is closably mounted on the movable seat assembly 2. The first clamping member and the second clamping member, which are arranged opposite to each other, open and close under the drive of the second drive mechanism 20. In actual operation, the second drive mechanism 20 first drives the first clamping member and the second clamping member to close, clamping and fixing the capsule on the mold. Then, the first drive mechanism drives the movable seat assembly 2 to move linearly away from the positioning part 19. The entire clamping assembly 3 moves linearly backward synchronously with the movable seat assembly 2, thereby smoothly pulling the capsule held by the clamping member out of the mold along its axis. This "close clamping first, then pull out linearly" working method ensures that the capsule is subjected to uniform force and pulled out smoothly during the process of leaving the mold, avoiding the capsule being sucked out due to the vacuum formed inside caused by instantaneous pull-out. It is especially suitable for capsule extraction operations of 00# large-size capsules on a high-speed production line of 50-60 rods / min.

[0032] The first and second clamping components (i.e., the upper and lower clamps) and the release plate 305 mounted thereon are all made of beryllium bronze. Beryllium bronze has moderate hardness and excellent wear resistance, providing sufficient clamping force and wear life without scratching the mold surface during repeated clamping of the mold pin and demolding operations. Simultaneously, the clamping components only hold the mold pin rather than directly contacting the capsule surface. Throughout the demolding process, the clamping components and the mold pin are statically held together, without relative rubbing or sliding, fundamentally eliminating scratches on the mold surface and effectively extending the mold's service life.

[0033] The first drive mechanism uses a drafting drive motor 11 in conjunction with a lead screw 16, while the second drive mechanism 20 uses a clamping drive motor 20 in conjunction with a reducer 21, a drive gear 27, and a rack 38. Both the drafting drive motor 11 and the clamping drive motor 20 are servo motors, which can precisely control the clamping closing force and the stroke and speed of the drafting retraction, ensuring consistency and reliability in each drafting action. Simultaneously, the upper clamping beam 301 assembly containing the first clamping component and the lower clamping beam 302 assembly containing the second clamping component are both composed of alternating long clamps 303 and short clamps 304. This structure can simultaneously adapt to both single-row and double-row mold needle dies, enabling drafting operations for dies with different arrangements without changing the clamping components. It is convenient to implement, highly versatile, and significantly improves bud removal efficiency and production line adaptability.

[0034] The draft mold base assembly 1 includes a base 10-0, a side plate 10, and a center seat 19. The side plate 10 and the center seat 19 are both mounted on the base 10-0, and the center seat 19 constitutes the positioning part. The first driving mechanism includes a draft mold drive motor 11 and a lead screw 16. The draft mold drive motor 11 is mounted on the side plate 10. The input end of the lead screw 16 is connected to the motor shaft of the draft mold drive motor 11. The fixed end of the lead screw 16 is mounted on the bottom end of the center seat 19 through a lead screw fixed end 18.

[0035] The input end of the lead screw 16 is connected to the motor shaft of the drafting drive motor 11. The fixed end of the lead screw 16 is fixedly installed at the bottom of the center seat 19 through the lead screw fixed end 18, so that both ends of the lead screw 16 are effectively supported when the motor drives the rotation, avoiding the lead screw 16 from swaying or vibrating during long-stroke transmission. At the same time, the center seat 19 serves as both the mounting base for the lead screw fixed end 18 and the positioning part of the mold. During the drafting process, when the moving seat assembly 2 drives the clamping assembly 3 to move away from the center seat 19, the center seat 19 abuts against the mold end to provide a stable reverse support force, so that the drafting reaction force is directly transmitted to the base 10-0 through the center seat 19, instead of being borne by the lead screw 16. This ensures that the lead screw 16 only undertakes the transmission function and does not bear the drafting reaction load, which significantly improves the service life of the lead screw 16 and the smoothness of the drafting action, ensuring that the capsule is subjected to uniform force during the extraction process, and effectively avoiding capsule damage or collapse caused by drafting vibration or swaying.

[0036] The draft mold base assembly 1 further includes a first guide rail 17 and a lead screw nut fixing plate 14. The first guide rail 17 is installed on the top of the side plate 10. The lead screw 16 is connected to the motor shaft of the draft mold drive motor 11 through a coupling 15. The lead screw nut on the lead screw 16 is fixedly connected to the lead screw nut fixing plate 14. The lead screw nut fixing plate 14 is used to fixally connect to the movable seat assembly 2 so as to drive the movable seat assembly 2 to move synchronously with the lead screw nut.

[0037] The first guide rail 17 is fixedly installed on the top of the side plate 10, serving as a guide reference for the sliding of the movable seat assembly 2. The lead screw nut fixing plate 14 is fixedly connected to the lead screw nut on the lead screw 16, and also fixedly connected to the movable seat assembly 2, so that the movable seat assembly 2 obtains driving force through the lead screw nut and precise linear guidance through the first guide rail 17. This structure achieves the separation of power transmission and motion guidance. The lead screw 16 is only responsible for transmitting driving force, while the first guide rail 17 undertakes the guiding and load-bearing functions, and the two do not interfere with each other. On the one hand, this avoids the lead screw 16 bearing radial load, ensuring the transmission accuracy and service life of the lead screw 16; on the other hand, the first guide rail 17 provides a linear motion trajectory for the movable seat assembly 2, so that the movable seat assembly 2 always moves smoothly in a fixed direction during the demolding retraction process, without skewing or vibration, thereby ensuring that the clamping assembly 3 pulls the capsule straight out along the mold needle axis with a constant posture, avoiding deformation or collapse of the capsule caused by uneven force due to demolding direction deviation.

[0038] The movable seat assembly 2 includes a mounting base plate 28 and a first slider 29. The first slider 29 is mounted on both sides of the mounting base plate 28. The first slider 29 slides in cooperation with the first guide rail 17. The mounting base plate 28 is fixedly connected to the lead screw nut fixing plate 14. The drafting drive motor 11 drives the mounting base plate 28 to slide back and forth along the first guide rail 17 through the lead screw 16.

[0039] The movable seat assembly 2 further includes a left front side plate 23, a left rear side plate 24, an upper end plate 22, a second guide rail 25, a reducer 21, and a drive gear 27. The lower ends of the left front side plate 23 and the left rear side plate 24 are respectively fixedly connected to the mounting base plate 28. The upper ends of the left front side plate 23 and the left rear side plate 24 are both connected to the upper end plate 22. The second guide rail 25 is mounted on the left front side plate 23 and the left rear side plate 24. The clamp drive motor 20 is connected to the reducer 21. The clamp drive motor 20 and the reducer 21 are fixed together with the left front side plate 23 and the left rear side plate 24 by the mounting plate 26. The drive gear 27 is mounted on the shaft of the reducer 21.

[0040] The clamp drive motor 20 and reducer 21 are fixedly mounted on the left front side plate 23 and left rear side plate 24 via mounting plate 26. The drive gear 27 is directly mounted on the shaft of the reducer 21 and meshes with the rack 38. In this structure, the meshing position of the drive gear 27 and the rack 38 is relatively close to the guide surface of the second guide rail 25, resulting in high transmission rigidity and effectively reducing off-center load and vibration in the gear and rack meshing transmission. At the same time, the second guide rail 25, mounted on the left front side plate 23 and left rear side plate 24, provides precise guidance for the up-and-down sliding of the clamping assembly 30, ensuring that the clamp mounting plate assembly 30 always moves vertically along a fixed trajectory during opening and closing, thus guaranteeing the precise alignment of the clamping parts and the mold needle.

[0041] The movable seat assembly 2 is slidably mounted on the first guide rail 17 of the drafting base assembly 1 via the first sliders 29 on both sides of the mounting base plate 28. The drafting drive motor 11 drives the mounting base plate 28 to slide back and forth along the first guide rail 17 via the lead screw 16 and the lead screw nut fixing plate 14, thereby driving the entire movable seat assembly 2 and the clamping assembly 3 mounted on it to move closer to or away from the center seat 19, realizing the linear forward and backward movement of the drafting action.

[0042] In the movable seat assembly 2, the left front side plate 23, the left rear side plate 24, and the upper end plate 22 are fixedly connected to the mounting base plate 28, forming a portal frame structure that provides rigid support for other components mounted on the movable seat assembly. The second guide rail 25 is vertically mounted on the left front side plate 23 and the left rear side plate 24, providing guidance for the opening and closing movement of the clamping assembly 3.

[0043] The clamping assembly 3 further includes a second slider 39, a rack 38, an upper rack fixing plate 36, a lower rack fixing plate 37, an upper left slider fixing plate 32, an upper right slider fixing plate 34, a lower left slider fixing plate 33, a lower right slider fixing plate 35, and a clamp mounting plate assembly 30. The second slider 39 slides in cooperation with the second guide rail 25 of the moving seat assembly 2. The rack 38 meshes with the drive gear 27. The rack 38 passes through the upper rack fixing plate 36 and the lower rack fixing plate 37. One end of the upper rack fixing plate 36 is connected to the upper left slider fixing plate 32, and the other end is connected to the upper right slider fixing plate 34. One end of the lower rack fixing plate 37 is connected to the lower left slider fixing plate 33, and the other end is connected to the lower right slider fixing plate 35. 32. The second slider 39 is installed on the lower left slider fixing plate 33, the upper right slider fixing plate 34, and the lower right slider fixing plate 35. The clamp mounting plate assembly 30 is fixedly connected to the upper left slider fixing plate 32, the upper right slider fixing plate 34, the lower left slider fixing plate 33, and the lower right slider fixing plate 35. The clamp drive motor 20 drives the rack 38 to move up and down through the drive gear 27. The rack 38 drives the clamp mounting plate assembly 30 to move synchronously through the upper rack fixing plate 36, the lower rack fixing plate 37, the upper left slider fixing plate 32, the upper right slider fixing plate 34, the lower left slider fixing plate 33, and the lower right slider fixing plate 35. The first clamping member and the second clamping member are both installed on the clamp mounting plate assembly 30.

[0044] The clamping assembly 3 is slidably mounted on the second guide rail 25 via the second slider 39, forming a second-stage motion platform. The power output from the clamp drive motor 20 is reduced and amplified by the reducer 21, and then the rotational motion is converted into the up-and-down linear motion of the rack 38 by the meshing transmission of the drive gear 27 and the rack 38. The rack 38 passes through the upper rack fixing plate 36 and the lower rack fixing plate 37. The upper rack fixing plate 36 and the lower rack fixing plate 37 are fixedly connected to the clamp mounting plate assembly 30 via the upper left slider fixing plate 32, the upper right slider fixing plate 34, the lower left slider fixing plate 33, and the lower right slider fixing plate 35, respectively. The second slider 39 is installed on all the slider fixing plates, so that the clamp mounting plate assembly 30 slides up and down along the second guide rail 25 as a whole. When the clamp drive motor 20 rotates forward, the rack 38 moves downward, driving the clamp mounting plate assembly 30 to move downward synchronously through each fixed plate, so that the first clamping member and the second clamping member close and clamp the mold needle of the mold; when the clamp drive motor 20 rotates in reverse, the rack 38 moves upward, so that the first clamping member and the second clamping member open and release the mold needle.

[0045] The ejection action and the clamping action work together. After the moving seat assembly 2 moves along the first guide rail 17 to approach the center seat 19, the clamping assembly 3 closes along the second guide rail 25 to clamp the mold needle. Then, the moving seat assembly 2 moves away from the center seat 19 along the first guide rail 17 to pull out the capsule. Finally, the clamping assembly 3 opens along the second guide rail 25 to release the mold needle, completing a complete ejection cycle.

[0046] The clamp mounting plate assembly 30 includes an upper clamp beam 301 and a lower clamp beam 302. An upper clamp forming the first clamping member is mounted on the upper clamp beam 301, and a lower clamp forming the second clamping member is mounted on the lower clamp beam 302.

[0047] The upper clamp crossbeam 301 assembly is composed of several long clamps 303 and several short clamps 304 arranged alternately, and the lower clamp crossbeam 302 is composed of several long clamps 303 and several short clamps 304 arranged alternately. Each of the long clamps 303 and each of the short clamps 304 is equipped with a release plate 305.

[0048] When the upper clamping beam 301 and the lower clamping beam 302 are closed relative to each other under the drive of the clamping drive motor 20, the release plates 305 between the corresponding upper and lower long clamps 303 and between the corresponding upper and lower short clamps 304 simultaneously grip the staggered mold pins in the double-row mold from both the upper and lower sides, clamping all the capsules on the double-row mold at once. Subsequently, when the ejection drive motor 11 drives the entire moving seat assembly 2 to retreat, all the release plates 305 synchronously pull the capsules out of the mold pins along the mold pin axis. During this process, the holding force of each release plate 305 on the mold needle is uniform and consistent. All capsules are subjected to force and release at the same time, avoiding uneven force on subsequent stations on the production line due to inconsistent release times of each capsule. At the same time, the release plate 305 directly holds the mold needle rather than the capsule body. The release force is entirely applied to the mold needle and transmitted through static friction between the clamp and the mold needle. The capsule is only subjected to uniform release force in the axial direction, avoiding radial compression deformation of the capsule body. This effectively prevents the capsule from being sucked out due to the internal vacuum at the moment of release.

[0049] It also includes a shape detection sensor, which is installed at the finished capsule exit position to detect whether the capsule has a suck-down defect after being pulled out, and controls the start or stop of the anti-suck-down device based on the detection result.

[0050] Both the first clamping member and the second clamping member are made of beryllium bronze.

[0051] The working principle of this invention is as follows: 1. The double-row mold 4 is pushed to the center seat 19 along the T-shaped guide rail. The center seat 19 acts as a positioning part to hold the mold end and position the mold in preparation for demolding.

[0052] 2. The draft drive motor 11 starts and drives the lead screw 16 to rotate via the coupling 15. The lead screw nut on the lead screw 16 converts the rotational motion into linear motion, causing the lead screw nut fixing plate 14 and the mounting base plate 28 fixedly connected to it to slide along the first guide rail 17 towards the center seat 19. Since the entire moving seat assembly 2 is fixedly mounted on the mounting base plate 28, the clamping assembly 3 also moves closer to the mold as a whole, stopping after reaching the set position. This stage completes the feed to the draft position.

[0053] 3. The clamp drive motor 20 starts, and after being reduced in speed and torque by the reducer 21, the drive gear 27 rotates in the forward direction, driving the rack 38 meshing with it to move downward. The rack 38, through the upper rack fixing plate 36 and the lower rack fixing plate 37, drives the upper left slider fixing plate 32, the upper right slider fixing plate 34, the lower left slider fixing plate 33, and the lower right slider fixing plate 35 to move downward synchronously, thereby driving the clamp mounting plate assembly 30 to slide downward along the second guide rail 25. At this time, the upper clamp crossbeam 301 and the lower clamp crossbeam 302 are closed relative to each other, and the demolding plates 305 installed on each clamp clamp the staggered mold pins in the double row mold from the upper and lower sides respectively. The clamping force is precisely controlled by the output torque of the servo motor. This stage completes the clamping of the capsule.

[0054] 4. The ejection drive motor 11 rotates in the reverse direction, driving the lead screw nut and lead screw nut fixing plate 14 to move away from the center seat 19 via the lead screw 16, causing the mounting base plate 28 and the entire moving seat assembly 2 to retract along the first guide rail 17. During this process, the clamping assembly 3 remains closed, and the ejector plate 305 grips the mold needle and retracts synchronously with the moving seat assembly 2, smoothly pulling the capsule fitted on the mold needle axially out of the mold through static friction. The center seat 19 abuts against the end of the mold during the ejection process, providing reverse support force, and the capsule extraction is completed at this stage.

[0055] 5. The clamp drive motor 20 rotates in the opposite direction, driving the gear 27 to rotate in the opposite direction, which in turn drives the rack 38 to move upward. This, through the fixing plates, causes the clamp mounting plate assembly 30 to slide upward along the second guide rail 25. At this time, the upper clamp beam 301 and the lower clamp beam 302 open relative to each other, the release plate 305 releases the mold pins, and the loosened capsule separates from the mold. This stage completes the release of the capsule.

[0056] 6. After the clamping assembly 3 is fully opened, the draft drive motor 11 rotates forward again, driving the moving seat assembly 2 to move towards the center seat 19 to the set position, and the entire device returns to the standby state. The front center push rod pushes the next mold to be drafted into the center seat 19, and at the same time pushes the mold that has completed pre-demolding to the next station, entering the next draft cycle.

[0057] 7. An appearance detection sensor is installed at the finished capsule exit point to monitor the capsules in real time after they are pulled out. When continuous capsule collapse or other capsule extraction defects are detected, the sensor sends a feedback signal to the control system, which automatically activates the anti-collapse device. When the capsule extraction is successful, the device automatically stops operating, enabling on-demand operation.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A capsule manufacturing anti-collapse device, characterized in that, include: A draft mold base assembly (1) is provided with a positioning part (19) for positioning the mold. The movable seat assembly (2) is slidably mounted on the draft base assembly (1). A first drive mechanism is provided on the draft base assembly (1). The first drive mechanism is connected to the movable seat assembly (2) for driving the movable seat assembly (2) to reciprocate in a direction close to or away from the positioning part (19). The clamping assembly (3) is closably mounted on the movable seat assembly (2). The clamping assembly (3) has a first clamping member and a second clamping member disposed opposite to each other. The movable seat assembly (2) is provided with a second driving mechanism (20). The second driving mechanism (20) is connected to the clamping assembly (3) for driving the first clamping member and the second clamping member to perform opening and closing actions. After the first clamping member and the second clamping member close and clamp the capsule on the mold, the first driving mechanism drives the moving seat assembly (2) to move away from the positioning part (19) to pull the capsule off the mold.

2. The capsule production anti-collapse device according to claim 1, characterized in that, The draft base assembly (1) includes a base (10-0), a side plate (10), and a center seat (19). The side plate (10) and the center seat (19) are both mounted on the base (10-0), and the center seat (19) constitutes the positioning part. The first driving mechanism includes a draft drive motor (11) and a lead screw (16). The draft drive motor (11) is mounted on the side plate (10). The input end of the lead screw (16) is connected to the motor shaft of the draft drive motor (11). The fixed end of the lead screw (16) is mounted on the bottom end of the center seat (19) through the lead screw fixed end (18).

3. The capsule production anti-collapse device according to claim 2, characterized in that, The draft mold base assembly (1) further includes a first guide rail (17) and a lead screw nut fixing plate (14). The first guide rail (17) is installed on the top of the side plate (10). The lead screw (16) is connected to the motor shaft of the draft mold drive motor (11) through a coupling (15). The lead screw nut on the lead screw (16) is fixedly connected to the lead screw nut fixing plate (14). The lead screw nut fixing plate (14) is used to fixally connect to the movable seat assembly (2) so as to drive the movable seat assembly (2) to move synchronously with the lead screw nut.

4. The capsule production anti-collapse device according to claim 3, characterized in that, The movable seat assembly (2) includes a mounting base plate (28) and a first slider (29). The first slider (29) is mounted on both sides of the mounting base plate (28). The first slider (29) is slidably engaged with the first guide rail (17). The mounting base plate (28) is fixedly connected to the lead screw nut fixing plate (14). The drafting drive motor (11) drives the mounting base plate (28) to slide back and forth along the first guide rail (17) through the lead screw (16).

5. The capsule production anti-collapse device according to claim 4, characterized in that, The movable seat assembly (2) further includes a left front side plate (23), a left rear side plate (24), an upper end plate (22), a second guide rail (25), a reducer (21), and a drive gear (27). The lower ends of the left front side plate (23) and the left rear side plate (24) are respectively fixedly connected to the mounting base plate (28). The upper ends of the left front side plate (23) and the left rear side plate (24) are both connected to the upper end plate (22). The second guide rail (25) is installed on the left front side plate (23) and the left rear side plate (24). The clamp drive motor (20) is connected to the reducer (21). The clamp drive motor (20) and the reducer (21) are fixed together with the left front side plate (23) and the left rear side plate (24) through the mounting plate (26). The drive gear (27) is installed on the shaft of the reducer (21).

6. The capsule production anti-collapse device according to claim 5, characterized in that, The clamping assembly (3) further includes a second slider (39), a rack (38), an upper rack fixing plate (36), a lower rack fixing plate (37), an upper left slider fixing plate (32), an upper right slider fixing plate (34), a lower left slider fixing plate (33), a lower right slider fixing plate (35), and a clamp mounting plate assembly (30). The second slider (39) is slidably engaged with the second guide rail (25) of the movable seat assembly (2). The rack (38) meshes with the drive gear (27). The rack (38) passes through the upper rack fixing plate (36) and the lower rack fixing plate (37). One end of the upper rack fixing plate (36) is connected to the upper left slider fixing plate (32), and the other end is connected to the upper right slider fixing plate (34). One end of the lower rack fixing plate (37) is connected to the lower left slider fixing plate (33), and the other end is connected to the lower right slider fixing plate (35). The second slider (39) is installed on the upper left slider fixing plate (32), the lower left slider fixing plate (33), the upper right slider fixing plate (34), and the lower right slider fixing plate (35). The clamp mounting plate assembly (30) is fixedly connected to the upper left slider fixing plate (32), the upper right slider fixing plate (34), the lower left slider fixing plate (33), and the lower right slider fixing plate (35). The clamp drive motor (20) drives the rack (38) to move up and down through the drive gear (27). The rack (38) drives the clamp mounting plate assembly (30) to move synchronously through the upper rack fixing plate (36), the lower rack fixing plate (37), the upper left slider fixing plate (32), the upper right slider fixing plate (34), the lower left slider fixing plate (33), and the lower right slider fixing plate (35). The first clamping member and the second clamping member are both installed on the clamp mounting plate assembly (30).

7. The capsule production anti-collapse device according to claim 6, characterized in that, The clamp mounting plate assembly (30) includes an upper clamp beam (301) and a lower clamp beam (302), with an upper clamp forming the first clamping member mounted on the upper clamp beam (301) and a lower clamp forming the second clamping member mounted on the lower clamp beam (302).

8. The capsule production anti-collapse device according to claim 7, characterized in that, The upper clamp crossbeam (301) is composed of several long clamps (303) and several short clamps (304) arranged alternately, and the lower clamp crossbeam (302) is composed of several long clamps (303) and several short clamps (304) arranged alternately. Each of the long clamps (303) and each of the short clamps (304) is equipped with a release plate (305).

9. The capsule production anti-collapse device according to claim 8, characterized in that, It also includes a shape detection sensor, which is installed at the finished capsule exit position to detect whether the capsule has a suck-down defect after being pulled out, and controls the start or stop of the anti-suck-down device based on the detection result.

10. The capsule production anti-collapse device according to claim 1, characterized in that, Both the first clamping member and the second clamping member are made of beryllium bronze.

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