Automatic blister tube feeding mechanism and feeding method thereof

Abstract

The application provides an automatic blister tube feeding mechanism and a feeding method thereof, and relates to the technical field of automatic feeding equipment. The mechanism comprises a machine body, a pushing power mechanism arranged on the machine body, a pushing rotation mechanism connected with the pushing power mechanism, a flexible pushing assembly, and a position detection mechanism. The pushing rotation mechanism comprises a winding wheel rotatably arranged on the machine body, and the flexible pushing assembly comprises a steel belt pushing rod. When the pushing power mechanism drives the winding wheel to rotate, the steel belt pushing rod is wound or released along with the rotation of the winding wheel, so that the steel belt pushing rod is switched between the curved storage state and the straight extension state, thereby pushing the product in the blister tube to move. The position detection mechanism is used to detect the movement position of the steel belt pushing rod. The application adopts the winding steel belt pushing rod to realize long-distance feeding, reduces the space occupation of the equipment, improves the feeding stability and position control precision, and is suitable for the automatic continuous feeding of the product in the blister tube.

Description

Technical Field

[0001] This application relates to the field of automated feeding equipment technology, and in particular to an automatic feeding mechanism for blister tubes and its feeding method. Background Technology

[0002] In the automated production of electronic components and precision parts, some products are arranged, stored, and transported using blister packs. On automated production lines, the products arranged in the blister packs need to be pushed out one by one and transferred to the next processing station.

[0003] Existing blister tube feeding mechanisms typically use cylinders, electric cylinders, or linear modules as the pushing power, and push the product out by moving a rigid push rod in a straight line.

[0004] However, the above structure has at least the following problems:

[0005] On the one hand, when using a cylinder or electric cylinder for linear drive, a linear installation space that matches the pushing stroke needs to be set. When the blister tube is long or the pushing distance is large, it will lead to an increase in the overall size of the equipment, which is not conducive to the miniaturization design of automated equipment.

[0006] On the other hand, traditional rigid push rods cannot be retracted, require a large retraction space after completing a pushing action, and are prone to vibration during operation, affecting pushing accuracy.

[0007] Furthermore, existing systems struggle to meet the requirements of long travel distances, limited space, and high positioning accuracy simultaneously.

[0008] Therefore, there is an urgent need for an automatic feeding mechanism for blister tubes that is compact in structure, stable in operation, and capable of pushing materials over long distances. Summary of the Invention

[0009] In order to solve the problems of existing automated feeding equipment, this application provides an automatic feeding mechanism for blister tubes and its feeding method.

[0010] Firstly, the automatic feeding mechanism for blister tubes provided in this application adopts the following technical solution:

[0011] An automatic feeding mechanism for blister tubes includes:

[0012] Organism;

[0013] The material pushing power mechanism is installed on the machine body;

[0014] The material pushing rotation mechanism is connected to the material pushing power mechanism;

[0015] A flexible material pushing assembly is installed on the machine body;

[0016] And a position detection mechanism for detecting the position of the flexible pusher assembly;

[0017] in:

[0018] The pusher power mechanism is used to output rotational power;

[0019] The material pushing and rotating mechanism includes a winding wheel rotatably mounted on the machine body, and the winding wheel is connected to the material pushing power mechanism.

[0020] The flexible pusher assembly includes a bendable and wound steel strip pusher rod, one end of which is fixedly connected to the winding wheel, and the other end is connected to a pusher head for extending into the blister tube and pushing the product to move.

[0021] When the pushing power mechanism drives the winding wheel to rotate, the steel strip push rod rotates with the winding wheel to wind or release, so that the steel strip push rod switches between a bent and retracted state and a straight extended state, so as to push out the product from the blister tube.

[0022] As a preferred option

[0023] The feeding power mechanism includes a servo motor, and the output end of the servo motor is connected to the winding wheel via a coupling or a speed reduction transmission assembly.

[0024] As a preferred option

[0025] The steel strip push rod is made of metal strip with elastic recovery capability, so that the steel strip push rod can maintain a straight state after the winding constraint is released.

[0026] As a preferred option

[0027] The outer periphery of the winding wheel is provided with a winding groove for accommodating the steel strip push rod.

[0028] As a preferred option

[0029] The machine body is equipped with a steel belt guide and constraint assembly;

[0030] The steel strip guide constraint assembly includes a guide sleeve disposed on the movement path of the steel strip push rod, and a guide channel is formed inside the guide sleeve for the steel strip push rod to pass through.

[0031] The guide sleeve is used to limit the lateral bending of the steel strip push rod during the extension process, so that the steel strip push rod moves in a preset direction.

[0032] As a preferred option

[0033] The guide sleeve is provided with an elastic clamping structure;

[0034] The elastic clamping structure includes at least two elastic abutment members arranged opposite each other along the width direction of the steel strip push rod;

[0035] The elastic abutment is used to abut against the side wall of the steel strip push rod and to apply an elastic constraint force to the steel strip push rod during its movement, so as to limit the lateral swing of the steel strip push rod.

[0036] As a preferred option

[0037] The position detection mechanism includes a photoelectric detection component disposed on the body;

[0038] The photoelectric detection component is used to detect the extension length or winding position of the steel strip push rod.

[0039] As a preferred option

[0040] The machine body is provided with an abutment assembly for tightly winding the steel strip push rod around the outer circumference of the winding wheel;

[0041] The abutting component includes an abutting block slidably disposed on the machine body, and an abutting wheel rotatably connected to the abutting block;

[0042] The machine body is equipped with a drive abutment block that moves toward the winding wheel and abuts the wheel against the steel belt, and an abutment spring.

[0043] As a preferred option

[0044] The body is equipped with a positioning mechanism;

[0045] The winding wheel is provided with positioning holes;

[0046] The positioning mechanism includes a positioning rod that is slidably mounted on the machine body and corresponds to the positioning hole, and a positioning spring is sleeved on the positioning rod;

[0047] The positioning spring drives the positioning rod to move in the direction of disengaging from the positioning hole;

[0048] When equipment debugging or initial position calibration is required, the positioning rod is pressed to overcome the force of the positioning spring and insert into the positioning hole, thereby limiting the rotation of the winding wheel and detecting whether the winding wheel is in the preset initial position.

[0049] Secondly, this application also provides a feeding method for the above-mentioned automatic feeding mechanism for blister tubes, comprising the following steps:

[0050] S1. Install the blister pack containing the product into the corresponding position on the machine body, and put the steel strip push rod into the initial feeding state;

[0051] S2. Control the output rotational power of the pusher mechanism to drive the winding wheel to rotate, so that the steel strip push rod wound on the winding wheel is gradually released;

[0052] S3. Under the release action of the winding wheel and its own elastic recovery, the steel strip push rod changes from a bent winding state to a straight extension state, and moves along a preset direction under the restriction of the steel strip guide constraint assembly.

[0053] S4. The steel strip push rod drives the push head to extend into the blister tube and pushes the product inside the blister tube to the next station. At the same time, the position detection mechanism detects the extension position or winding position of the steel strip push rod.

[0054] S5. Control the material pushing power mechanism to stop running or adjust its running status according to the detection signal fed back by the position detection mechanism, so that the steel strip push rod reaches the preset feeding position;

[0055] S6. Control the material pushing power mechanism to drive the winding wheel to rotate in the opposite direction, so that the steel strip push rod is re-wound and stored along the outer circumference of the winding wheel, and apply elastic abutment to the steel strip push rod during the winding process through the abutment component, so that the steel strip push rod is kept in a tightly wound state.

[0056] S7. After the steel strip push rod is retracted, the position detection mechanism confirms that the steel strip push rod has returned to its initial position and repeats the above feeding process to achieve continuous automatic feeding of products inside the blister tube.

[0057] In summary, this application includes at least one of the following beneficial technical effects:

[0058] This application enables the material pushing structure to switch between a bent and retracted state and a straight extended state by setting up a winding wheel and a flexible and winding steel strip push rod. While meeting the needs of long-distance material pushing, it effectively reduces the straight installation space required by traditional rigid push rods and improves the compactness of the equipment structure.

[0059] By employing a steel strip pusher with elastic recovery capability, when the winding wheel releases the steel strip pusher, the steel strip pusher can automatically return to a straight state by relying on its own elastic recovery force, thereby forming a stable feeding structure. Combined with the guide sleeve and elastic clamping structure, the movement direction of the steel strip pusher is constrained, reducing lateral swaying, offset and jamming during the extension process of the steel strip pusher, and improving the running stability during the feeding process.

[0060] By setting up photoelectric detection components to detect the extension length or winding position of the steel strip push rod, and combining this with a servo motor to drive the winding wheel to rotate, precise control of the pushing stroke is achieved, thereby improving the product feeding position accuracy.

[0061] By setting up a contact component, an elastic contact is applied to the steel strip pusher during the winding process, so that the steel strip pusher can fit tightly against the outer circumference of the winding wheel, preventing the steel strip pusher from becoming loose, misaligned, or warped, thus improving the long-term operational reliability of the equipment.

[0062] By setting up a positioning mechanism, the winding wheel can be mechanically positioned during equipment debugging or maintenance, the initial position of the steel strip push rod can be quickly determined, the efficiency of equipment installation and debugging can be improved, and the consistency of the cyclic feeding process can be guaranteed. Attached Figure Description

[0063] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0064] Figure 2 This is a schematic diagram illustrating the connection structure of the steel strip push rod and the winding wheel in an embodiment of this application.

[0065] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Servo motor; 3. Winding wheel; 4. Steel strip push rod; 5. Push head; 6. Guide sleeve; 7. Photoelectric detection component; 8. Abutting block; 9. Abutting wheel; 10. Positioning rod; 11. Positioning hole. Detailed Implementation

[0066] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0067] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0068] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0069] This embodiment provides an automatic feeding mechanism for blister tubes. This mechanism is used in the automated conveying process of electronic components, precision parts and other products. It is used to push the products that are pre-arranged inside the blister tube to the next processing station in a set rhythm.

[0070] The automatic feeding mechanism for blister tubes includes a body 1, which serves as the mounting base for the entire feeding mechanism. It houses functional components such as a pushing power mechanism, a pushing rotation mechanism, a flexible pushing assembly, a position detection mechanism, and a positioning mechanism. The flexible pushing assembly includes a bendable, wound steel strip push rod 4, which pushes the material by unwinding the steel strip push rod 4. The body 1 can adopt a plate structure, a frame structure, or a modular installation structure depending on the spatial layout of the automated production line to ensure a stable installation relationship between the various functional components.

[0071] The material pushing power mechanism provides rotational power to drive the flexible material pushing component. In this embodiment, the material pushing power mechanism includes a servo motor 2, which is fixedly mounted on the machine body 1. The output end of the servo motor 2 is connected to a coupling, and the other end of the coupling is connected to the material pushing rotation mechanism. In other embodiments, the servo motor 2 and the material pushing rotation mechanism can also be connected by a reduction transmission component, such as a gear reduction mechanism, a synchronous belt transmission mechanism, or a planetary reduction mechanism, to adjust the output torque according to the length of the blister tube, the weight of the product, and the material pushing speed requirements.

[0072] By employing a servo motor 2 as the power source, the winding wheel 3 can rotate precisely at a set angle, thereby controlling the extension distance of the steel strip push rod 4 and achieving precise control over the product ejection position. Compared to the traditional linear cylinder push method, the rotary power input reduces the linear installation space requirement, allowing for space compression of longer pushing distances through steel strip winding.

[0073] The material pushing and rotating mechanism is connected to the material pushing and power mechanism. The material pushing and rotating mechanism includes a winding wheel 3 rotatably mounted on the machine body 1. The winding wheel 3 can rotate around its own axis. A winding groove is machined on the outer circumference of the winding wheel 3. The winding groove is used to accommodate the part of the steel strip push rod 4 after winding, so that the steel strip push rod 4 can be stored layer by layer along the circumference of the winding wheel 3.

[0074] After the winding wheel 3 is connected to the servo motor 2, it generates rotational motion under the drive of the servo motor 2. When the winding wheel 3 rotates in the forward direction, the winding groove gradually releases the steel strip push rod 4, causing the steel strip push rod 4 to change from the winding state to the extended state; when the winding wheel 3 rotates in the reverse direction, the steel strip push rod 4 re-enters the winding groove and bends along the outer circumference of the winding wheel 3, realizing automatic recycling.

[0075] By cooperating with the winding wheel 3 and the steel strip push rod 4, the traditional linear long-stroke pushing structure is transformed into a rotary storage pushing structure, so that the pushing stroke is no longer limited by the linear space of the equipment. After the equipment stops running or after a feeding action is completed, the steel strip push rod 4 can be stored around the winding wheel 3, thereby reducing the space occupied by the equipment and avoiding interference during the long-distance rigid push rod retraction.

[0076] The steel strip push rod 4 is made of a metal strip with elastic recovery capability, such as spring steel strip, stainless steel strip, or other thin metal strip structures with a certain elastic modulus. When constrained by the winding wheel 3, the steel strip push rod 4 can bend and deform along the outer circumference of the winding wheel 3 and maintain its wound state; when the steel strip push rod 4 is released from the winding groove, due to its own elastic recovery capability, the steel strip push rod 4 gradually returns to a straight state, thereby forming a stable linear pushing structure.

[0077] The end of the steel strip push rod 4 furthest from the winding wheel 3 is connected to a pusher head 5. The pusher head 5 is used to extend into the blister tube and abut against the products arranged inside the blister tube. The pusher head 5 can be made of wear-resistant plastic, elastic material, or metal composite structure. Its end shape can be adapted to the end face structure of the product, such as setting a flat abutment surface, an arc abutment surface, or a flexible buffer surface to reduce the impact on the product surface during the pushing process.

[0078] When the servo motor 2 drives the winding wheel 3 to rotate, the winding wheel 3 releases the steel strip push rod 4. Under its own elastic restoring force, the steel strip push rod 4 gradually unfolds and enters the blister tube along the axial direction, pushing the product forward through the pusher head 5. After feeding is completed, the servo motor 2 rotates in the opposite direction, and the steel strip push rod 4 is rewound around the outer circumference of the winding wheel 3, realizing the cyclic use of the pusher assembly.

[0079] To improve the motion stability of the steel strip push rod 4 during its extension process, a steel strip guide constraint assembly is installed on the body 1.

[0080] The steel strip guide constraint assembly is located at the position where the steel strip push rod 4 enters the linear motion area from the winding wheel 3. It includes a guide sleeve 6, which is fixedly installed on the machine body 1 and extends along the movement direction of the steel strip push rod 4. A guide channel is formed inside the guide sleeve 6, and the size of the guide channel matches the shape of the steel strip push rod 4, so that the steel strip push rod 4 can reciprocate along the guide channel.

[0081] The guide sleeve 6 is used to limit the lateral bending of the steel strip push rod 4 during the extension process. When the steel strip push rod 4 is affected by the pushing resistance or its own elastic restoring force, the guide sleeve 6 can provide lateral restraint on the steel strip push rod 4, so that the steel strip push rod 4 always maintains the same direction of movement as the axis of the blister tube.

[0082] In other embodiments, the guide sleeve 6 is provided with an elastic clamping structure inside.

[0083] The elastic clamping structure includes at least two elastic abutment members arranged opposite each other along the width direction of the steel strip push rod 4. The elastic abutment members can be spring pillars, elastic rollers, or elastic plates. The two elastic abutment members are respectively arranged on both sides of the steel strip push rod 4 and maintain elastic contact with the side wall of the steel strip push rod 4.

[0084] When the steel strip push rod 4 deviates slightly during its movement, the elastic abutment can generate a restoring force through elastic deformation, causing the steel strip push rod 4 to automatically return to the center position. At the same time, the elastic abutment will not form a rigid clamp on the steel strip push rod 4, which can reduce the movement resistance of the steel strip push rod 4, allowing the steel strip push rod 4 to move smoothly while maintaining stable guidance.

[0085] By combining the guide sleeve 6 with the elastic clamping structure, the steel strip push rod 4 can simultaneously have axial guiding and lateral limiting functions, avoiding the problems of swinging, deflection and jamming that are easy to occur when traditional flexible push rods are running at high speeds.

[0086] The machine body 1 is also equipped with an abutting component, which is used to improve the winding tightness of the steel strip push rod 4 on the winding wheel 3.

[0087] The abutting assembly includes an abutting block 8 slidably disposed on the machine body 1, and an abutting wheel 9 rotatably connected to the side of the abutting block 8 facing the winding wheel 3. An abutting spring is disposed between the machine body 1 and the abutting block 8, and the abutting spring is used to continuously push the abutting block 8 to move closer to the winding wheel 3, so that the abutting wheel 9 always keeps in contact with the steel strip push rod 4 wound on the winding wheel 3.

[0088] When the winding wheel 3 performs the winding action, the abutting wheel 9 can float and adjust according to the changes in the winding thickness of the steel strip push rod 4, and keep the layers of the steel strip push rod 4 in a close fit through elastic pressure, so as to avoid uneven winding caused by the steel strip push rod 4 due to springback or loosening.

[0089] Meanwhile, the contact wheel 9 adopts a rotating structure to contact the steel strip push rod 4, so that the sliding friction of the steel strip push rod 4 is converted into rolling friction during the winding process, which reduces the surface wear of the steel strip push rod 4 and improves the long-term operational reliability of the mechanism.

[0090] The body 1 is equipped with a position detection mechanism, which includes a photoelectric detection component 7.

[0091] The photoelectric detection component 7 is installed at a position corresponding to the movement path of the steel strip push rod 4, and is used to detect the extension length or winding position of the steel strip push rod 4. The photoelectric detection component 7 can be a photoelectric sensor, a reflective sensor, or a through-beam sensor.

[0092] By detecting the position change of the steel strip push rod 4, the control system can obtain the current feeding status in real time, and control the servo motor 2 to start, stop, reverse or adjust the rotation angle according to the detection results, so as to realize feeding control based on position feedback.

[0093] For example, when the steel strip pusher 4 reaches the preset extension distance, the photoelectric detection component 7 outputs a detection signal, and the control system controls the servo motor 2 to stop rotating, so that the pusher head 5 accurately stops at the target position; after the feeding is completed, the automatic cycle operation is realized by detecting the retraction status of the steel strip pusher 4.

[0094] In this embodiment, the photoelectric detection component 7 can adopt a through-beam fiber optic detection structure. The steel strip push rod 4 is provided with a detection hole or light-transmitting area corresponding to the through-beam fiber optic detection structure. When the steel strip push rod 4 moves to a preset position, the detection hole enters the detection optical path between the transmitter and receiver, so that the receiver receives the corresponding optical signal, thereby determining whether the steel strip push rod 4 has reached the initial position or the target extension position.

[0095] The positioning mechanism is used to initially position the winding wheel 3 so as to determine the initial state of the steel strip push rod 4 during equipment installation, commissioning or maintenance.

[0096] The positioning mechanism includes a positioning rod 10 slidably mounted on the machine body 1, and a positioning hole 11 corresponding to the positioning rod 10 on the winding wheel 3. The positioning rod 10 moves in a direction close to or away from the winding wheel 3, and a positioning spring is sleeved on the outside of the positioning rod 10. The positioning spring applies an elastic force to the positioning rod 10 in a direction away from the winding wheel 3, so that the positioning rod 10 remains separated from the positioning hole 11 during normal operation of the equipment.

[0097] During normal operation of the automatic feeding mechanism for blister tubes, the winding wheel 3 needs to rotate in the forward or reverse direction according to the rotational power output by the pushing power mechanism to drive the steel strip push rod 4 to release or wind. Therefore, the positioning rod 10 is in the state of being disengaged from the positioning hole 11 under the action of the positioning spring, so as to avoid the positioning rod 10 interfering with the rotation of the winding wheel 3 and ensure that the steel strip push rod 4 can complete the extension and retraction actions according to the set stroke.

[0098] When the equipment is installed, debugged, calibrated, or maintained, the operator can press the positioning rod 10 to move it toward the winding wheel 3 against the elastic force of the positioning spring, and insert the end of the positioning rod 10 into the positioning hole 11 on the winding wheel 3.

[0099] When the positioning rod 10 is inserted into the positioning hole 11, the winding wheel 3 is restricted by the positioning rod 10 and cannot continue to rotate, thus keeping the winding wheel 3 at a preset angle position. Through this mechanical locking method, the initial reference position corresponding to the winding wheel 3 can be quickly determined, and it can be checked whether the initial storage position of the steel strip push rod 4 meets the installation requirements.

[0100] After completing the position detection or debugging operation, the external force acting on the positioning rod 10 is released. Under the action of the restoring force of the positioning spring, the positioning rod 10 automatically exits the positioning hole 11, so that the winding wheel 3 can resume free rotation, thereby avoiding the positioning mechanism from affecting the normal feeding operation of the equipment.

[0101] By setting up a positioning mechanism, the winding wheel 3 can have a repeatable and determinable mechanical reference position, which improves the convenience of adjusting the initial state of the steel strip pusher 4. At the same time, in conjunction with the position detection mechanism to detect the winding position, the positional consistency of the steel strip pusher 4 during the cyclic feeding process and the efficiency of equipment debugging can be improved. At the same time, the positioning mechanism can also determine whether the positional relationship between the photoelectric detection component 7 and the steel strip pusher 4 corresponds.

[0102] This application also discloses a feeding method based on the above-mentioned automatic feeding mechanism for blister tubes, including the following steps:

[0103] S1. Install the blister pack containing the product into the corresponding position on the machine body 1, and put the steel strip push rod 4 into the initial feeding state.

[0104] Specifically, the pre-arranged blister tubes containing the products are installed at the corresponding feeding position on the machine body 1, so that the axial direction of the blister tubes is consistent with the movement direction of the steel strip push rod 4.

[0105] Before the equipment is started, the steel strip pusher 4 is in a wound and stored state, and the pusher head 5 is located at the corresponding position at the entrance of the blister tube or in a preset standby position. By adjusting the initial angle of the winding wheel 3, the steel strip pusher 4 can maintain a corresponding relationship with the product inside the blister tube.

[0106] When the equipment needs to be recalibrated after installation, commissioning, or long-term operation, the initial position of the winding wheel 3 can be confirmed through the positioning mechanism set on the machine body 1. The operator presses the positioning rod 10, causing the positioning rod 10 to move against the force of the positioning spring and insert into the positioning hole 11 on the winding wheel 3, so that the winding wheel 3 is held at the preset angle position, thereby determining the initial feeding reference of the steel strip push rod 4.

[0107] By using the above method, each feeding action of the steel strip pusher 4 is based on a uniform initial position, thereby improving the consistency of subsequent feeding distance control.

[0108] S2. Control the output rotational power of the pusher mechanism to drive the winding wheel 3 to rotate, so that the steel strip push rod 4 wound on the winding wheel 3 is gradually released.

[0109] Specifically, after the blister tube is installed, the control system sends a feeding command to the feeding power mechanism. The servo motor 2 in the feeding power mechanism starts and transmits the rotational power to the winding wheel 3 through the coupling or reduction transmission assembly.

[0110] During the rotation of the winding wheel 3, the winding groove on its outer circumference gradually releases the steel strip push rod 4, causing the steel strip push rod 4, which was originally wound around the circumference of the winding wheel 3, to gradually detach from the winding state.

[0111] Since the release length of the steel strip push rod 4 is controlled by a rotary drive, the extension distance of the steel strip push rod 4 can be adjusted by controlling the rotation angle of the servo motor 2. There is no need to set up a linear drive structure that matches the length of the blister tube, thereby reducing the space occupied by the equipment.

[0112] S3, under the release action of the winding wheel 3 and its own elastic recovery action, the steel strip push rod 4 changes from a bent winding state to a straight extension state and moves along the direction limited by the steel strip guide constraint assembly.

[0113] Specifically, as the winding wheel 3 continues to rotate, the steel strip push rod 4 gradually breaks free from the constraint of the winding groove.

[0114] Because the steel strip push rod 4 is made of metal strip with elastic recovery capability, after the winding restriction is released, the steel strip push rod 4 can gradually return to a straight state by its own elastic recovery force and extend into the direction of the blister tube.

[0115] During the extension of the steel strip push rod 4, the steel strip push rod 4 first enters the guide sleeve 6 in the steel strip guide constraint assembly. The guide channel formed inside the guide sleeve 6 restricts the movement direction of the steel strip push rod 4, causing the steel strip push rod 4 to move along a preset path.

[0116] Meanwhile, the elastic abutment inside the guide sleeve 6 maintains elastic contact with the side wall of the steel strip push rod 4. When the steel strip push rod 4 is affected by product resistance, its own elasticity, or motion inertia and tends to deviate laterally, the elastic abutment can generate a restoring force to correct the deviation of the steel strip push rod 4 and keep the steel strip push rod 4 in a stable extended state.

[0117] Through the coordination of winding release, elastic recovery, and guiding constraints, the steel strip pusher 4 can switch from the storage state to the long-distance linear feeding state.

[0118] S4. The steel strip push rod 4 drives the push head 5 to extend into the blister tube and pushes the product in the blister tube to the next station. At the same time, the position detection mechanism detects the extension position or winding position of the steel strip push rod 4.

[0119] Specifically, when the steel strip push rod 4 moves along the guide sleeve 6 into the blister tube, the push head 5 located at the end of the steel strip push rod 4 comes into contact with the products arranged inside the blister tube.

[0120] As the steel strip push rod 4 continues to extend, the pusher head 5 pushes the product to move along the axial direction of the blister tube, so that the product is output to the next processing station according to the preset distance.

[0121] During the feeding process, the photoelectric detection component 7 in the position detection mechanism detects the position status of the steel strip push rod 4 in real time.

[0122] The photoelectric detection component 7 can determine the current motion state of the steel strip push rod 4 by detecting the extension length, winding position, or detection marks set on the steel strip push rod 4, and then feed back the detection signal to the control system.

[0123] By monitoring the feeding process through a position detection mechanism, the equipment can obtain the current position of the steel strip push rod 4 in a timely manner, thereby improving the position control accuracy during the feeding process.

[0124] S5. Based on the detection signal fed back by the position detection mechanism, control the pushing power mechanism to stop running or adjust the running status so that the steel strip push rod 4 reaches the preset feeding position.

[0125] Specifically, when the steel strip push rod 4 extends to the set position, the position detection mechanism outputs a position detection signal to the control system.

[0126] The control system controls the servo motor 2 to stop rotating based on the detection results, thereby stopping the winding wheel 3 from rotating and keeping the steel strip push rod 4 and the push head 5 in the target feeding position.

[0127] When the control system detects that the steel strip push rod 4 has not reached the preset position, it can continue to control the servo motor 2 to run or adjust the rotation angle so that the steel strip push rod 4 completes the predetermined feeding stroke.

[0128] By coordinating the position detection mechanism and the servo drive mechanism, closed-loop control is achieved during the feeding process, reducing feeding position deviations caused by elastic changes in the steel strip push rod 4, winding errors, or mechanical wear.

[0129] S6. Control the material pushing power mechanism to drive the winding wheel 3 to rotate in the opposite direction, so that the steel strip push rod 4 is re-wound and stored along the outer circumference of the winding wheel 3, and the steel strip push rod 4 is kept tightly wound through the abutment component.

[0130] Specifically, after the product is fed, the control system controls the servo motor 2 to rotate in the opposite direction, causing the winding wheel 3 to rotate in the opposite direction and driving the steel strip push rod 4 to re-enter the winding groove.

[0131] During the recovery process of the steel strip pusher 4, the abutment component set on the machine body 1 always provides an elastic force in the direction of the winding wheel 3.

[0132] The abutting wheel 9 maintains contact with the surface of the steel strip push rod 4, and its position is adjusted as the winding thickness of the steel strip push rod 4 changes, so that the steel strip push rod 4 can be wrapped layer by layer around the outer periphery of the winding wheel 3.

[0133] Because the abutting wheel 9 is set in a rotating manner, it can reduce sliding friction and reduce surface wear of the steel strip push rod 4 during the winding process, while avoiding loosening, warping or misalignment of the steel strip push rod 4 due to its own elastic restoring force.

[0134] S7. After the steel strip push rod 4 has been retracted, the position detection mechanism confirms that the steel strip push rod 4 has returned to its initial position and repeats the above feeding process to achieve continuous automatic feeding of products inside the blister tube.

[0135] Specifically, after the steel strip push rod 4 completes the retraction action, the position detection mechanism detects the position of the winding wheel 3 or the retraction status of the steel strip push rod 4, and feeds the detection signal back to the control system.

[0136] The control system determines whether the current feeding cycle is complete based on the detection results.

[0137] Once it is confirmed that the steel strip push rod 4 has returned to its initial position, the equipment enters the next feeding cycle and controls the pushing power mechanism to drive the winding wheel 3 to release the steel strip push rod 4, thereby realizing the continuous automatic conveying of the products inside the blister tube.

[0138] By utilizing the steel strip push rod 4, which can be wound and stored and automatically returns to a straight state after release, long-distance feeding can be achieved within a limited installation space. At the same time, combined with guiding constraints, elastic clamping, position detection, mechanical positioning, and winding and pressing structure, the stability, repeatability, and automated continuous feeding capabilities of the equipment during operation are improved.

[0139] The control system re-controls the pusher mechanism according to the next feeding command, so that the steel strip pusher 4 can complete the release, extension and pushing process again, realizing the continuous and automated conveying of products in the blister tube.

[0140] Utilizing the characteristic that the steel strip push rod 4 can be wound and stored and automatically returns to a straight state after release, long-distance material pushing can be achieved in a limited equipment space. At the same time, combined with guiding constraints, elastic clamping, position detection and winding and pressing structure, the feeding process has high operational stability, positioning accuracy and automated continuous operation capability.

[0141] The above are merely preferred embodiments of this application. The scope of protection of this application is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in this application should be included within the scope of protection recorded in the claims.

Claims

1. An automatic feeding mechanism for blister tubes, characterized in that, include: Body (1); The material pushing power mechanism is installed on the machine body (1); The material pushing rotation mechanism is connected to the material pushing power mechanism; A flexible material pushing assembly is disposed on the body (1); And a position detection mechanism for detecting the position of the flexible pusher assembly; in: The pusher power mechanism is used to output rotational power; The material pushing and rotating mechanism includes a winding wheel (3) rotatably mounted on the machine body (1), and the winding wheel (3) is connected to the material pushing power mechanism in a transmission manner; The flexible pusher assembly includes a bendable and wound steel strip pusher (4), one end of which is fixedly connected to the winding wheel (3), and the other end is connected to a pusher head (5) for extending into the blister tube and pushing the product to move. When the pushing power mechanism drives the winding wheel (3) to rotate, the steel strip push rod (4) rotates with the winding wheel (3) to wind or release, so that the steel strip push rod (4) switches between a bent and retracted state and a straight extended state, so as to push out the product from the blister tube.

2. The automatic feeding mechanism for blister tubes according to claim 1, characterized in that: The feeding power mechanism includes a servo motor (2), and the output end of the servo motor (2) is connected to the winding wheel (3) through a coupling or a speed reduction transmission assembly.

3. The automatic feeding mechanism for blister tubes according to claim 1, characterized in that: The steel strip push rod (4) is made of metal strip with elastic recovery capability, so that the steel strip push rod (4) can maintain a straight state after the winding constraint is released.

4. The automatic feeding mechanism for blister tubes according to claim 1, characterized in that: The outer periphery of the winding wheel (3) is provided with a winding groove for accommodating the steel strip push rod (4).

5. The automatic feeding mechanism for blister tubes according to claim 1, characterized in that: The body (1) is provided with a steel belt guide constraint assembly; The steel strip guide constraint assembly includes a guide sleeve (6) disposed on the movement path of the steel strip push rod (4), the outlet end of the guide sleeve (6) is configured to correspond to the inlet of the blister tube, and a guide channel is formed inside the guide sleeve (6) for the steel strip push rod (4) to pass through; The guide sleeve (6) is used to limit the lateral bending of the steel strip push rod (4) during the extension process, so that the steel strip push rod (4) moves in a preset direction.

6. The automatic feeding mechanism for blister tubes according to claim 5, characterized in that: The guide sleeve (6) is provided with an elastic clamping structure; The elastic clamping structure includes at least two elastic abutment members arranged opposite each other along the width direction of the steel strip push rod (4); The elastic abutment is used to abut against the side wall of the steel strip push rod (4) and to apply an elastic constraint force to the steel strip push rod (4) during its movement, so as to limit the lateral swing of the steel strip push rod (4).

7. The automatic feeding mechanism for blister tubes according to claim 1, characterized in that: The position detection mechanism includes a photoelectric detection component (7) disposed on the body (1); The photoelectric detection component (7) is used to detect the extension length or winding position of the steel strip push rod (4).

8. The automatic feeding mechanism for blister tubes according to claim 1, characterized in that: The machine body (1) is provided with an abutment assembly for tightly winding the steel strip push rod (4) around the winding wheel (3); The abutting assembly includes an abutting block (8) slidably disposed on the body (1), and an abutting wheel (9) is rotatably connected to the abutting block (8); The machine body (1) is provided with a drive abutment block (8) that moves toward the winding wheel (3) and causes the abutment wheel (9) to abut against the abutment spring on the steel belt push rod (4).

9. The automatic feeding mechanism for blister tubes according to claim 1, characterized in that: The body (1) is provided with a positioning mechanism; The winding wheel (3) is provided with a positioning hole (11); The positioning mechanism includes a positioning rod (10) that is slidably disposed on the body (1) and corresponds to the positioning hole (11), and a positioning spring is sleeved on the positioning rod (10); The positioning spring drives the positioning rod (10) to move in the direction of disengaging from the positioning hole (11); When equipment debugging or initial position calibration is required, the positioning rod (10) is pressed to overcome the force of the positioning spring and insert into the positioning hole (11) to limit the rotation of the winding wheel (3) and detect whether the winding wheel (3) is in the preset initial position.

10. A feeding method based on the automatic feeding mechanism for blister tubes according to any one of claims 1-9, characterized in that, include: S1. Install the blister tube containing the product into the corresponding position of the machine body (1) and put the steel strip push rod (4) into the initial feeding state; S2. Control the output of the pusher power mechanism to drive the winding wheel (3) to rotate, so that the steel strip push rod (4) wound on the winding wheel (3) is gradually released; S3, the steel strip push rod (4) changes from a bent and wound state to a straight extended state under the release action of the winding wheel (3) and its own elastic recovery action, and moves along the preset direction under the restriction of the steel strip guide constraint assembly; S4. The steel strip push rod (4) drives the push head (5) to extend into the blister tube and pushes the product in the blister tube to the next station. At the same time, the position detection mechanism detects the extension position or winding position of the steel strip push rod (4). S5. Control the pusher power mechanism to stop running or adjust the running status according to the detection signal fed back by the position detection mechanism, so that the steel strip push rod (4) reaches the preset feeding position; S6. Control the material pushing power mechanism to drive the winding wheel (3) to rotate in the opposite direction, so that the steel strip push rod (4) can be wound and stored again along the outer periphery of the winding wheel (3), and apply elastic abutment to the steel strip push rod (4) during the winding process through the abutment component, so that the steel strip push rod (4) remains tightly wound. S7. After the steel strip push rod (4) is retracted, the position detection mechanism confirms that the steel strip push rod (4) has returned to the initial position and repeats the above feeding process to achieve continuous automatic feeding of products in the blister tube.

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