Automatic felt replacing device

Abstract

The invention relates to the technical field of automatic equipment, in particular to an automatic felt replacing device which comprises an automatic felt head feeding mechanism, an automatic felt head mounting mechanism, an old felt head replacing mechanism and an old felt head storage bin. The automatic felt head mounting mechanism is compact in structure, two mechanisms are driven by one power, space is saved, an old felt head replacing mechanism integrates the grabbing function and is easy and efficient to disassemble, and harmful substances are convenient to recycle through the arrangement of an old felt head storage bin. According to the automatic felt head replacement device, automatic replacement of old felt heads and automatic installation of new felt heads can be completed, the working efficiency is greatly improved, reliable guarantee is provided for the follow-up process, due to the fact that the old felt heads contain harmful chemical substances, manual replacement is replaced, the health of personnel is guaranteed, and the automatic felt head replacement device has wide market value and application prospects.

Description

Technical Field

[0001] This invention relates to the field of automated equipment technology, and in particular to an automatic felt changing device. Background Technology

[0002] Automotive parts often include glass products, such as sunroofs and car windows. These products require multiple applications of chemical coatings during their manufacturing process. Depending on the process requirements, various different coatings are typically applied at intervals, with short intervals between each two coatings. This allows for a chemical reaction to occur, achieving the desired product effect.

[0003] Paint is typically applied using paint bottles, which consist of a bottle body and a felt tip at the front. Due to the strict requirements for replacing the felt tip during production, and the need for frequent replacement, manual replacement is currently employed. This method is labor-intensive for workers and results in a slow replacement rate. If paint is not applied promptly, product defects will occur. Furthermore, the felt tip is coated with harmful chemical paint, and even with protective gloves, some saturation can occur during manual replacement, posing a health risk. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic felt changing device that solves the technical problems of low changing efficiency and potential harm to human health when the felt head of the existing automatic felt changing device is manually changed.

[0005] To achieve the above objectives, the present invention provides an automatic felt replacement device, comprising an automatic felt head feeding mechanism, an automatic felt head installation mechanism, an old felt head replacement mechanism, and an old felt head storage bin. The automatic felt head feeding mechanism is used for automatically feeding new felt heads, the automatic felt head installation mechanism is used for automatically installing new felt heads, the old felt head replacement mechanism is used for replacing old felt heads, and the old felt head storage bin is used for storing old felt heads. The clamping position of the automatic felt head installation mechanism is located at the discharge port of the automatic felt head feeding mechanism, and the old felt head storage bin is installed below the old felt head replacement mechanism and cooperates with a recycling bag to facilitate the recycling of old felt heads.

[0006] The automatic felt feeding mechanism includes a first electric push rod, a second electric push rod, a third electric push rod, and a storage bin. The first electric push rod, the second electric push rod, and the third electric push rod are all mounted on the support base of the storage bin. The storage bin has a discharge port. The first electric push rod, the second electric push rod, and the third electric push rod sequentially push the felt in the storage bin to the discharge port in a pre-set order.

[0007] The push plate of the third electric push rod includes two working surfaces: an upper surface and a front surface. The upper surface is used to hold the felt heads stacked in a row, and the front surface is used to push the felt heads after they are discharged.

[0008] The automatic felt head installation mechanism includes a clamping mechanism, a rotating mechanism, a first base, and a fourth electric push rod. The clamping mechanism is mounted on the rotating mechanism. A guide rail is mounted on the first base. The rotating mechanism is provided with a slider that cooperates with the guide rail. The fourth electric push rod pushes the rotating mechanism to reciprocate between the material picking and discharging positions relative to the first base.

[0009] The clamping mechanism includes a clamping gripper, a clamping transmission mechanism, a thrust mechanism, and a clamping base. The clamping transmission mechanism includes a first rack, a second rack, a first gear, a second gear, a rotating shaft, and a clamping motor. The first gear meshes with the first rack, and the second gear meshes with the second rack. The rotating shaft is connected to the first gear and the second gear by a key, has a thread at its end, a keyway in the middle, and is tightened by a nut. The clamping motor is mounted on the clamping base and connected to the rotating shaft. The clamping gripper includes upper and lower grippers and left and right grippers. The upper and lower grippers and the left and right grippers are respectively mounted on the first rack and the second rack, realizing opening and closing in four directions: up, down, left and right. The open state is used to grasp the felt, and the closed state is used to clamp the felt. The thrust-stopping mechanism includes a push plate and a fifth electric push rod, the fifth electric push rod being mounted on the clamping base, the push plate passing through the clamping base and moving back and forth on the clamping base.

[0010] The old felt head replacement mechanism includes a right ejector pin, a left ejector pin, a right electric push rod, a left electric push rod, a right connecting plate, a left connecting plate, an upper rack, a lower rack, a third gear, a drive shaft, a control motor, and a second base. The end of the right ejector pin is connected to the right electric push rod, and the end of the left ejector pin is connected to the left electric push rod. The right and left electric push rods are connected to the sides of the lower and upper racks respectively via the right and left connecting plates. The second base has a sliding groove, and the right and left connecting plates are respectively installed in the sliding groove of the second base and slide stably laterally within the sliding groove, driving the right and left ejector pins to move laterally left and right. The drive shaft has a thread at its end and a keyway in the middle. The third gear is installed on the drive shaft and fixed by a key and a nut. The drive shaft is connected to the control motor, and the control motor is fixed on the second base.

[0011] The old felt head storage bin includes a recycling port, a baffle, a third base, and a clamping plate. The baffle has a slot, through which the right and left ejector pins pass. The size of the slot is smaller than the size of the felt head. The recycling port has an inclined surface for easy guidance. The clamping plate is installed on the side of the third base to effectively fix the plastic storage bag for recycling old felt heads, making it easy to put in and take out.

[0012] This invention discloses an automatic felt replacement device. The automatic felt head feeding mechanism can store multiple felt heads at once, meeting the operational needs of an entire shift. Due to the action of three vertically distributed electric push rods, the felt heads can be automatically retrieved one by one from the storage location. The automatic felt head installation mechanism of this invention has two working positions: one is a waiting installation position, and the other is a material retrieval position located at the discharge port. Since the clamping mechanism of the automatic felt head installation mechanism always holds one felt head, the linkage of various mechanisms is triggered by a sensor on the clamping mechanism to complete the automatic installation of the felt head. Therefore, the entire installation time can be controlled within 2 seconds. The old felt head replacement mechanism integrates the extension and opening / closing functions of the ejector pin into a single mechanism, thus allowing the disassembly time of the old felt head to be controlled within 2 seconds. Simultaneously, an old felt head storage bin is provided below, capable of temporarily storing all the old felt heads replaced during the entire shift. A recycling bag can be placed below the storage bin for quick collection of old felt head waste. The automatic felt head replacement device provided by this invention can automatically replace old felt heads and automatically install new felt heads, greatly improving work efficiency and providing reliable assurance for subsequent processes. Since old felt heads contain harmful chemicals, this invention replaces manual replacement, protecting personnel health and possessing broad market value and application prospects. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the automatic felt replacement device according to the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the automatic felt head feeding mechanism according to the first embodiment of the present invention.

[0016] Figure 3 This is a partial cross-sectional view of the automatic felt head feeding mechanism according to the first embodiment of the present invention.

[0017] Figure 4 This is a half-sectional view of the automatic felt head feeding mechanism according to the first embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the automatic felt head installation mechanism according to the first embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the clamping mechanism according to the first embodiment of the present invention.

[0020] Figure 7 This is a schematic diagram of the clamping part of the clamping mechanism according to the first embodiment of the present invention.

[0021] Figure 8 This is a front view of the clamping portion of the clamping mechanism according to the first embodiment of the present invention.

[0022] Figure 9 This is a top view of the clamping mechanism according to the first embodiment of the present invention.

[0023] Figure 10 This is a schematic diagram of the thrust-stopping mechanism according to the first embodiment of the present invention.

[0024] Figure 11 This is a schematic diagram of the rotating mechanism according to the first embodiment of the present invention.

[0025] Figure 12 This is a schematic diagram of the old felt head replacement mechanism according to the first embodiment of the present invention.

[0026] Figure 13 This is a schematic diagram of the structure of the old felt head storage bin according to the first embodiment of the present invention.

[0027] Figure 14 This is a schematic diagram of the structure of a paint bottle with a felt head according to the first embodiment of the present invention.

[0028] In the diagram: 1-Automatic felt head feeding mechanism, 2-Automatic felt head installation mechanism, 3-Old felt head replacement mechanism, 4-Old felt head storage bin, 11-First electric push rod, 12-Second electric push rod, 13-Third electric push rod, 14-Storage bin, 141-Discharge port, 21-Clamping mechanism, 22-Rotating mechanism, 23-First base, 24-Fourth electric push rod, 25-First sensor, 26-Second sensor, 211-Clamping gripper, 212-Clamping transmission mechanism, 213-Thrust mechanism, 214-Clamping base, 2111-Upper and lower grippers, 2112-Left and right grippers, 2121-First rack, 2122- Second rack, 2123-First gear, 2124-Second gear, 2125-Rotating shaft, 2126-Clamping motor, 2127-Position sensor, 2131-Push plate, 2132-Fifth electric push rod, 311-Right ejector pin, 312-Left ejector pin, 313-Right electric push rod, 314-Left electric push rod, 315-Right connecting plate, 316-Left connecting plate, 317-Upper rack, 318-Lower rack, 319-Third gear, 3110-Drive shaft, 3111-Control motor, 3112-Second base, 41-Recovery port, 42-Baffle, 43-Third base, 44-Clamping plate, 45-Third sensor. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] First embodiment: Please see Figures 1 to 14This invention provides an automatic felt replacement device, comprising an automatic felt head feeding mechanism 1, an automatic felt head installation mechanism 2, an old felt head replacement mechanism 3, and an old felt head storage bin 4. The automatic felt feeding mechanism includes a first electric push rod 11, a second electric push rod 12, a third electric push rod 13, and a storage bin 14. The automatic felt head installation mechanism 2 includes a clamping mechanism 21, a rotating mechanism 22, a first base 23, and a fourth electric push rod 24. The clamping mechanism 21 includes a clamping gripper 211, a clamping transmission mechanism 212, a thrust stop mechanism 213, and a clamping base 214. The clamping transmission mechanism 212 includes a first rack 2121, a second rack 2122, and a first gear 21. 23. The second gear 2124, the rotating shaft 2125, and the clamping motor 2126; the clamping gripper 211 includes upper and lower grippers 2111 and left and right grippers 2112; the thrust-stopping mechanism 213 includes a push plate 2131 and a fifth electric push rod 2132; the old felt head replacement mechanism 3 includes a right ejector pin 311, a left ejector pin 312, a right electric push rod 313, a left electric push rod 314, a right connecting plate 315, a left connecting plate 316, an upper rack 317, a lower rack 318, a third gear 319, a transmission shaft 3110, a control motor 3111, and a second base 3112; the old felt head storage bin 4 includes a recycling port 41, a baffle 42, a third base 43, and a clamping plate 44.

[0031] In this embodiment, the automatic felt head feeding mechanism 1 can store multiple felt heads at once, meeting the operational needs of the entire shift. Due to the presence of three vertically distributed electric push rods, the felt heads can be automatically retrieved one by one from the storage location. The automatic felt head installation mechanism 2 in this invention has two working positions: one is a waiting installation position, and the other is a material retrieval position located at the discharge port 141. Since the clamping mechanism 21 of the automatic felt head installation mechanism 2 always retains one felt head, the sensor on the clamping mechanism 21 triggers the linkage of each mechanism to complete the automatic installation of the felt head. Therefore, the entire installation time can be controlled within 2 seconds. The old felt head replacement mechanism 3 integrates the extension and opening / closing functions of the ejector pin into one mechanism, thus the disassembly time of the old felt head can be controlled within 2 seconds. Simultaneously, an old felt head storage bin 4 is provided below, which can temporarily store all the old felt heads replaced in the entire shift. A recycling bag can be placed below the storage bin 14 for quick collection of old felt head waste. The automatic felt head replacement device provided by this invention can automatically replace old felt heads and automatically install new felt heads, greatly improving work efficiency and providing reliable assurance for subsequent processes. Since old felt heads contain harmful chemicals, this invention replaces manual replacement, protecting personnel health and possessing broad market value and application prospects.

[0032] The automatic felt head feeding mechanism 1 is used for automatically feeding new felt heads, the automatic felt head installation mechanism 2 is used for automatically installing new felt heads, the old felt head replacement mechanism 3 is used for replacing old felt heads, and the old felt head storage bin 4 is used for storing old felt heads. The clamping position of the automatic felt head installation mechanism 2 is located at the discharge port 141 of the automatic felt head feeding mechanism 1. The old felt head storage bin 4 is installed below the old felt head replacement mechanism 3 and cooperates with the recycling bag to facilitate the recycling of old felt heads. The feeding mechanism 1 can feed the felt heads stored in the storage bin 14 one by one. The automatic felt head installation mechanism 2 has two working positions: the first sensor 25 and the second sensor 26. The felt head is installed at the first sensor 25 position and the felt head is removed at the second sensor 26 position. The pin of the old felt head replacement mechanism 3 has a telescopic and retractable function to simulate the removal of old felt heads by hand. The old felt head storage bin 4 is installed below the old felt head replacement mechanism 3 and can be used with a recycling bag to facilitate the recycling of old felt heads.

[0033] Secondly, the first electric push rod 11, the second electric push rod 12, and the third electric push rod 13 are all mounted on the support base of the storage bin 14. The storage bin 14 has a discharge port 141. The first electric push rod 11, the second electric push rod 12, and the third electric push rod 13 sequentially push the felt in the storage bin 14 to the discharge port 141 in a predetermined order. The push plate 2131 of the third electric push rod 13 includes two working surfaces: an upper surface and a front surface. The upper working surface is used to hold the felt heads stacked in a row, and the front working surface is used to push the felt heads after discharge. To facilitate the smooth discharge of the next felt head, the third... The height of the front working surface of the push plate 2131 of the electric push rod 13 should be less than the height of the felt head. The storage bin 14 can stack multiple felt heads at one time. A detection sensor is installed at the discharge port 141. The detection sensor is used to detect whether the clamping mechanism 21 of the automatic felt head installation mechanism 2 has reached the position of the discharge port 141. The order in which the felt heads are sent out of the storage bin is as follows: first, the second electric push rod 12 pushes all the felt heads forward, then the first electric push rod 11 pushes a row of felt heads toward the discharge port 141, and finally, the third electric push rod 13 takes out each row of felt heads one by one.

[0034] Secondly, the clamping mechanism 21 is mounted on the rotating mechanism 22. A guide rail is mounted on the first base 23, and a slider that cooperates with the guide rail is provided on the rotating mechanism 22 to ensure smooth sliding. The fourth electric push rod 24 pushes the rotating mechanism 22 to reciprocate between the material picking and discharging positions relative to the first base 23. The first base 23 is equipped with a first sensor 25 and a second sensor 26 at the material picking and discharging positions. The first sensor 25 and the second sensor 26 are used to detect whether the rotating mechanism 22 has reached the material picking or discharging position of the first base 23. The rotation angle of the rotating mechanism 22 is greater than or equal to 90 degrees. The fourth electric push rod 24 pushes the rotating mechanism 22 to reciprocate between the material picking and discharging positions. The rotating mechanism 22 reciprocates relative to the first base 23 in two positions: picking up material and discharging material. When in the discharging position, the clamping mechanism 21 is horizontal. After the discharging action is completed, the rotating mechanism 22 drives the clamping mechanism 21 to rotate 90 degrees, with the direction being vertical. This position is maintained until the material outlet 141 is reached. After picking up material, the position is maintained until the material discharging position. The rotating mechanism 22 drives the clamping mechanism 21 to rotate -90 degrees back to the horizontal position, waiting for the felt head to be installed. The rotating mechanism 22 includes a rotating shaft 2125 bearing, a rotating motor, and a rotating base. The rotating motor is mounted on the rotating base. The rotating motor drives the clamping mechanism 21 to change its position.

[0035] Simultaneously, the first gear 2123 meshes with the first rack 2121, and the second gear 2124 meshes with the second rack 2122. The rotating shaft 2125 is connected to the first gear 2123 and the second gear 2124 via a key, with a threaded end and a keyway in the middle, and is tightened by a nut. The clamping motor 2126 is mounted on the clamping base 214 and connected to the rotating shaft 2125 to transmit kinetic energy. The upper and lower grippers 2111 and the left and right grippers 2112 are respectively mounted on the first rack 2121 and the second rack 2122, realizing opening and closing in four directions: up, down, left, and right. In the open state, it is used to grasp the felt; in the closed state... For clamping felt, the fifth electric push rod 2132 is mounted on the clamping base 214. The push plate 2131 passes through the clamping base 214 and moves back and forth on the clamping base 214. The clamping base 214 is provided with a sliding groove. The sliding groove cooperates with the slider on the back of the clamping gripper 211, so that the clamping gripper 211 can slide stably in the sliding groove to complete the opening and closing functions. The outer side of the clamping gripper 211 is provided with a position sensor 2127. The position sensor 2127 is used to detect whether the material bottle of the felt head to be installed is in place. If it is in place, the felt head is automatically installed. The anti-thrust mechanism 213 can at least hold two corners of the felt head.

[0036] Additionally, the end of the right ejector pin 311 is connected to the right electric push rod 313, and the end of the left ejector pin 312 is connected to the left electric push rod 314. The right electric push rod 313 and the left electric push rod 314 are connected to the sides of the lower rack 318 and the upper rack 317 respectively through the right connecting plate 315 and the left connecting plate 316. The second base 3112 is provided with a sliding groove. The right connecting plate 315 and the left connecting plate 316 are respectively installed in the sliding groove of the second base 3112 and slide horizontally stably in the sliding groove of the second base 3112, driving the right ejector pin 311 and the left ejector pin 312 to move horizontally left and right. The end of the transmission shaft 3110 is provided with a thread and the middle is provided with a keyway. The third gear 319 is installed on the transmission shaft 3110 and fixed by a key and a nut. The transmission shaft 3110 is connected to the control motor 3111, and the control motor 3111 is fixed on the second base 3112.

[0037] Finally, the baffle 42 is provided with a slot, through which the right ejector pin 311 and the left ejector pin 312 pass. The size of the slot is smaller than the size of the felt head. The recycling port 41 is a sloped surface for easy guidance. The clamping plate 44 is installed on the side of the third base 43 to effectively fix the plastic storage bag for recycling the old felt head, making it easy to pick up and put down. The baffle 42 can effectively block the old felt head. A third sensor 45 is provided at the recycling port 41. The third sensor 45 is used to sense whether the waste felt to be replaced is in place.

[0038] When using the automatic felt changing device of this embodiment, firstly, the device is started, the device performs a self-check, and after preparation, it is ready to start feeding. The clamping mechanism 21 rotates 90 degrees under the drive of the rotating mechanism 22. After displacement, it moves backward under the action of the fourth electric push rod 24 and reaches the position of the discharge port 141. The clamping motor 2126 rotates in the forward direction, driving the upper and lower grippers 2111 and the left and right grippers 2112 to open. At this time, the detection sensor at the discharge port 141 senses that the clamping grippers 211 of the clamping mechanism 21 are in place and executes the feeding action.

[0039] The feeding action is as follows: The second electric push rod 12 pushes all the felt heads forward, and the first electric push rod 11 pushes a row of felt heads toward the discharge port 141. At this time, a row of felt heads is entirely supported on the upper working plane of the third electric push rod 13. Then, the third electric push rod 13 first moves backward, allowing the bottom felt head in the row to fall down to the rear of the discharge port 141 by gravity. Finally, the third electric push rod 13 pushes forward, smoothly pushing a felt head into the discharge port 141 and into the clamping gripper 211 of the clamping mechanism 21. Afterward, the position sensor 2127 at the clamping gripper 211 senses that the felt head has entered, and the clamping motor 2126 rotates in the opposite direction, driving the upper and lower grippers 2111 and the left and right grippers 2112 to close and clamp the felt head.

[0040] After the felt head is clamped, the fourth electric push rod 24 pushes the clamping mechanism 21 back to the mounting position of the first sensor 25. At this time, the rotating mechanism 22 rotates 90 degrees in the opposite direction and returns to the mounting position. After waiting for the paint bottle to be ready, the installation of the felt head is completed.

[0041] The installation of the felt head is as follows: After the position sensor 2127 on the outside of the clamping gripper 211 senses that the paint bottle is ready, the thrust mechanism 213 pushes the felt head forward into the front end of the paint bottle (the inner wall of the clamping gripper 211 is as smooth as possible to reduce the friction when the felt head is pushed in). After being pushed in, the thrust mechanism 213 moves backward, driving the clamping gripper 211 out of the front end of the paint bottle, completing the installation of the felt head. At this time, the clamping mechanism 21 returns to the initial position of the paint bottle with the felt head installed, and the above feeding process is repeated to continue to remove the next felt head from the storage bin 14.

[0042] The disassembly process of the old felt head is as follows: The old felt head with the disassembly attachment attached to the front end of the paint bottle is placed at the opening of the old felt head storage hopper 14. Upon detection by the third sensor 45 at the hopper opening, the right electric push rod 313 and the left electric push rod 314 of the old felt head replacement mechanism 3 simultaneously push the right ejector pin 311 and the left ejector pin 312 forward, respectively. After both the right ejector pin 311 and the left ejector pin 312 are inserted into the old felt head, the control motor 3111 drives the third gear 319 to rotate forward, thereby driving... The upper rack 317 and the lower rack 318, which mesh with the third gear 319, move towards each other, thereby driving the right ejector pin 311 and the left ejector pin 312 to retract, generating a squeezing force on the old felt head. At this time, the right electric push rod 313 and the left electric push rod 314 simultaneously retract, removing the old felt head from the front end of the paint bottle, and continue to retract until the baffle 42 completely holds the old felt head. Finally, the control motor 3111 rotates in the opposite direction, allowing the right ejector pin 311 and the left ejector pin 312 to fully reset.

[0043] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An automatic felt changing device, characterized in that: It includes an automatic felt head feeding mechanism, an automatic felt head installation mechanism, an old felt head replacement mechanism, and an old felt head storage bin. The automatic felt head feeding mechanism is used to automatically feed new felt heads, the automatic felt head installation mechanism is used to automatically install new felt heads, the old felt head replacement mechanism is used to replace old felt heads, and the old felt head storage bin is used to store old felt heads. The clamping position of the automatic felt head installation mechanism is located at the discharge port of the automatic felt head feeding mechanism. The old felt head storage bin is installed below the old felt head replacement mechanism and cooperates with the recycling bag to facilitate the recycling of old felt heads.

2. The automatic felt changing device as described in claim 1, characterized in that: The automatic felt feeding mechanism includes a first electric push rod, a second electric push rod, a third electric push rod, and a storage bin. The first electric push rod, the second electric push rod, and the third electric push rod are all mounted on the support base of the storage bin. The storage bin has a discharge port. The first electric push rod, the second electric push rod, and the third electric push rod sequentially push the felt in the storage bin to the discharge port in a pre-set order.

3. The automatic felt changing device as described in claim 2, characterized in that: The push plate of the third electric push rod includes two working surfaces: an upper surface and a front surface. The upper working surface is used to hold the felt heads stacked in a row, and the front working surface is used to push the felt heads after they are discharged.

4. The automatic felt changing device as described in claim 1, characterized in that: The automatic felt head installation mechanism includes a clamping mechanism, a rotating mechanism, a first base, and a fourth electric push rod. The clamping mechanism is mounted on the rotating mechanism. A guide rail is mounted on the first base. The rotating mechanism is provided with a slider that cooperates with the guide rail. The fourth electric push rod pushes the rotating mechanism to reciprocate between the material picking and discharging positions relative to the first base.

5. The automatic felt changing device as described in claim 4, characterized in that: The clamping mechanism includes a clamping gripper, a clamping transmission mechanism, a thrust mechanism, and a clamping base; The clamping transmission mechanism includes a first rack, a second rack, a first gear, a second gear, a rotating shaft, and a clamping motor. The first gear meshes with the first rack, and the second gear meshes with the second rack. The rotating shaft is connected to the first gear and the second gear by a key, has a thread at the end, a keyway in the middle, and is tightened by a nut. The clamping motor is mounted on the clamping base and connected to the rotating shaft. The clamping gripper includes upper and lower grippers and left and right grippers. The upper and lower grippers and the left and right grippers are respectively mounted on the first rack and the second rack, realizing opening and closing in four directions: up, down, left and right. The open state is used to grasp the felt, and the closed state is used to clamp the felt. The thrust-stopping mechanism includes a push plate and a fifth electric push rod, the fifth electric push rod being mounted on the clamping base, the push plate passing through the clamping base and moving back and forth on the clamping base.

6. The automatic felt changing device as described in claim 1, characterized in that: The old felt head replacement mechanism includes a right ejector pin, a left ejector pin, a right electric push rod, a left electric push rod, a right connecting plate, a left connecting plate, an upper rack, a lower rack, a third gear, a drive shaft, a control motor, and a second base. The end of the right ejector pin is connected to the right electric push rod, and the end of the left ejector pin is connected to the left electric push rod. The right electric push rod and the left electric push rod are respectively connected to the sides of the lower rack and the upper rack via the right connecting plate and the left connecting plate. The second base has a sliding groove, and the right connecting plate and the left connecting plate are respectively installed in the sliding groove of the second base and slide stably laterally within the sliding groove of the second base, driving the right ejector pin and the left ejector pin to move laterally left and right. The end of the drive shaft has a thread, and the middle has a keyway. The third gear is installed on the drive shaft and fixed by a key and a nut. The drive shaft is connected to the control motor, and the control motor is fixed on the second base.

7. The automatic felt changing device as described in claim 6, characterized in that: The old felt head storage bin includes a recycling port, a baffle, a third base, and a clamping plate. The baffle has a slot, through which the right and left ejector pins pass. The size of the slot is smaller than the size of the felt head. The recycling port has a sloping surface for easy guidance. The clamping plate is installed on the side of the third base to effectively fix the plastic storage bag for recycling old felt heads, making it easy to put in and take out.

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