Etching equipment for folding screen production

Abstract

The invention relates to etching equipment for folding screen production, and relates to the technical field of folding screen production, the etching equipment comprises a machine body, the machine body is internally provided with at least two chambers, one chamber is an etching chamber, the other chamber is a cleaning chamber, a group of vertically distributed nozzles are arranged in the chambers, and the nozzles are arranged in the machine body. An inlet / outlet is formed in the side wall of the cavity in a penetrating manner; a sliding rail is fixedly arranged in the machine body and penetrates through all the inlets and outlets, a carrying frame is horizontally arranged on the sliding rail in a sliding mode, a supporting frame is rotatably arranged on the carrying frame and used for horizontally placing a material plate, and a swing mechanism and a movable mechanism are arranged on the carrying frame. The swing mechanism is used for driving the supporting frame to rotate, and the movable mechanism is used for driving the carrying frame to slide. The device has the effects that the flow direction orderliness of liquid on the surface of the material plate is improved, and local retention of the liquid on the upper surface of the material plate is reduced.

Description

Technical Field

[0001] This application relates to the field of foldable screen manufacturing technology, and in particular to an etching device for foldable screen manufacturing. Background Technology

[0002] Metal etching, also known as photochemical metal etching, refers to the process of removing the protective film from the metal to be etched area after exposure and development. During etching, the metal comes into contact with a chemical solution, which dissolves and corrodes the metal, creating a raised or hollowed-out effect. In the production of foldable screens, etching is required on the bending area in the center of the reinforcing plate to reduce stress during bending.

[0003] A related technology discloses an etching device comprising a body containing an etching chamber and a cleaning chamber. A feeding mechanism is also included within the body to transport a workpiece through the etching and cleaning chambers. Each chamber has a set of vertically distributed nozzles for spraying liquid onto the workpiece. The nozzles in the etching chamber spray etching solution, while those in the cleaning chamber spray cleaning solution. During operation, the feeding mechanism horizontally transports the workpiece through the etching and cleaning chambers. During this process, the nozzles spray etching or cleaning solution onto the workpiece surface, completing the etching and cleaning operations.

[0004] In the process of developing this application, it was found that the technology has at least the following problems: In this technology, when the material plate is sprayed, the upper surface is always in a horizontal state, the liquid flow on the surface of the material plate is disordered and easily stagnates locally, resulting in inconsistent etching effects. Moreover, under the influence of the surface tension of the material plate, the residual liquid is difficult to remove, causing the liquid to leave with the material plate, resulting in resource waste. Summary of the Invention

[0005] In order to improve the orderliness of liquid flow on the surface of the material plate and reduce local stagnation of liquid on the surface of the material plate, this application provides an etching device for foldable screen production.

[0006] This application provides an etching equipment for foldable screen production, which adopts the following technical solution: An etching device for foldable screen production includes a body with at least two chambers, one of which is an etching chamber and the other is a cleaning chamber. Each chamber has a set of vertically distributed nozzles, and an inlet / outlet is formed through the side wall of each chamber. A slide rail is fixedly installed inside the body, passing through all the inlets / outlets. A transport frame slides horizontally on the slide rail, and a support frame is rotatably mounted on the transport frame for horizontally placing a material plate. The transport frame is equipped with a swing mechanism and a movable mechanism; the swing mechanism drives the support frame to rotate, and the movable mechanism drives the transport frame to slide.

[0007] By adopting the above technical solution, the material plate is placed on a support frame, carried by a transport frame, and moved along a slide rail, entering the etching chamber and cleaning chamber sequentially for operation. In the etching chamber, the material plate is sprayed with etching solution from the nozzles; in the cleaning chamber, it is sprayed with cleaning solution from the nozzles. During the spraying process, a swing mechanism drives the support frame and the material plate to swing back and forth at a certain angle, causing the material plate to tilt. This changes the horizontal state of the material plate surface, causing the liquid to preferentially flow in the tilted direction of the material plate, guiding the sprayed liquid to flow in an orderly manner and reducing stagnation. This not only improves the uniformity of etching or cleaning but also facilitates the liquid to detach from the material plate surface under gravity, reducing residue and waste.

[0008] Preferably, the machine body is provided with a number of gates that slide vertically, and each gate corresponds to an inlet and outlet, and the gates are used to close the inlet and outlet.

[0009] By adopting the above technical solution, when the transport frame carries the material plate into a certain chamber, the corresponding gate can be lowered to close the chamber, thereby effectively isolating each chamber during operation and preventing liquids of different properties, such as etching solution and cleaning solution, from splashing and cross-contaminating each other.

[0010] Preferably, a gate cylinder is fixedly installed on the machine body, and a common frame is fixedly installed at the output end of the gate cylinder, and the common frame is fixedly connected to all the gate plates.

[0011] By adopting the above technical solution, a gate cylinder drives the joint frame, synchronously controlling the lifting and lowering of all gates, thereby achieving unified opening and closing of all inlet and outlet gates.

[0012] Preferably, the movable mechanism includes a rack, a drive gear, a motor, and a connecting rod. The motor is fixedly connected to the transport frame, and the drive gear is coaxially fixed to the drive shaft of the motor. The rack includes a fixed part and a movable part. The fixed part is located at the inlet / outlet and is fixedly connected to the machine body. The movable part is located inside the cavity and is fixedly connected to the connecting rod. The connecting rod is fixedly connected to the connecting frame. When the gate is opened, the movable part and the fixed part are continuous in a straight line, and the drive gear meshes with the rack.

[0013] By adopting the above technical solution, when the gate is open, the moving part and the fixed part are continuous in a straight line. The motor drives the drive gear to rotate, and the drive gear meshes with the rack to realize the movement of the transport frame itself. When the gate is closed, if the transport frame is located in the chamber, the moving part in the chamber disengages from the drive gear, and the drive gear cannot mesh with the rack. At this time, the transport frame cannot be driven to move by the motor.

[0014] Preferably, the swing mechanism includes a driving pulley, a driven pulley, a transmission belt, a driven gear, a sliding block, and a pressing assembly. The sliding block slides vertically on the transport frame, the driven gear is rotatably connected to the sliding block, and the pressing assembly is used to drive the sliding block closer to or away from the driving gear. The driven gear can mesh with the driving gear. The driving pulley and the driven gear are coaxially fixed, the driven pulley is coaxially fixed to the support frame, and the transmission belt is configured to drive between the driving pulley and the driven pulley.

[0015] By adopting the above technical solution, when it is necessary to drive the support frame to rotate, the pressing component pushes the sliding block to engage the driven gear with the driving gear. The power output from the motor is transmitted to the driving pulley via the driving gear and the driven gear. The driving pulley transmits the power to the driven pulley through the transmission belt, thereby driving the support frame and the material plate to rotate. When it is not necessary to drive the support frame to rotate, the driven gear and the driving gear disengage, and the support frame remains fixed.

[0016] Preferably, the pressing assembly includes a first pressing block and a return spring. The first pressing block is fixedly connected to the connecting rod. The first pressing block can abut against the sliding block and push the sliding block closer to the drive gear. The return spring is used to drive the sliding block away from the drive gear.

[0017] By adopting the above technical solution, when the gate cylinder drives the connecting frame and connecting rod to move downward to close the gate, the connecting rod drives the first pressure block to move downward synchronously. The first pressure block presses down on the sliding block, forcing the driven gear to mesh with the driving gear. At this time, the motor starts, and the support frame can be driven to swing through the transmission between the driven gear and the driving gear. When the gate opens, after the connecting rod and the first pressure block move upward, under the action of the return spring, the sliding block drives the driven gear to move upward, disengaging from the driving gear, and the motor's power cannot be transmitted to the swing mechanism.

[0018] Preferably, a tensioning block is slidably mounted on the transport frame, a tensioning wheel is rotatably mounted on the tensioning block, the transmission belt is wound around the tensioning wheel, and a tensioning spring is also mounted on the transport frame, the tensioning spring driving the tensioning wheel to tension the transmission belt.

[0019] By adopting the above technical solution, the tension spring provides continuous elastic force to the tension block, so that the tension wheel always presses the transmission belt, thereby automatically compensating for the tension state of the transmission belt and adapting to the change in the distance between the driving pulley and the driven pulley caused by the slippage of the sliding block.

[0020] Preferably, a locking block is slidably disposed on the transport frame, and a locking spring is disposed on the transport frame to drive the locking block closer to the driven pulley. The locking block abuts against the driven pulley and prevents the driven pulley from rotating. An unlocking component is disposed inside the machine body to drive the locking block away from the driven pulley.

[0021] By adopting the above technical solution, before the driving gear and the driven gear complete meshing, the locking block abuts against the driven pulley and prevents the driven pulley from rotating, thus preventing the support frame from rotating unexpectedly; when the driving gear and the driven gear are about to complete meshing, the unlocking component drives the locking block away from the driven pulley, releasing the lock on the driven pulley, at which point the driving pulley can drive the driven pulley to rotate.

[0022] Preferably, the locking block slides vertically on the transport frame, and the unlocking component includes a second pressing block, which is fixedly connected to the connecting rod and can abut against the locking block.

[0023] By adopting the above technical solution, as the connecting rod moves down, the driven gear gradually approaches the driving gear and engages with it. When the driving gear and the driven gear are about to complete engagement, the second pressing block abuts against the locking block and pushes the locking block away from the driven pulley, thereby releasing the driven pulley.

[0024] Preferably, the transmission belt is a synchronous belt.

[0025] By adopting the above technical solution, synchronous belts are used for transmission. Power is transmitted by the meshing of the belt teeth and pulley teeth. The transmission ratio is accurate and there is no slippage, which ensures precise control of the swing angle of the support frame.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up slide rails, transport racks, support frames, swing mechanisms, and movable mechanisms, during the spraying process, the swing mechanism drives the support frame and material plate to swing back and forth at a certain angle, causing the material plate to tilt, thereby changing the horizontal state of the material plate surface. The liquid will preferentially flow towards the tilt direction of the material plate, guiding the sprayed liquid to flow in an orderly manner and reducing stagnation. This not only improves the uniformity of etching or cleaning, but also facilitates the liquid to detach from the material plate surface under the action of gravity, reducing residue and waste. 2. By setting up gates, gate cylinders, and connecting frames, when the transport frame carries the material plate into the chamber, the gate cylinders drive the connecting frames to slide and lower all the gates to seal the chamber, thereby effectively isolating each chamber during operation and preventing different types of liquids, such as etching solution and cleaning solution, from splashing and cross-contaminating each other. 3. By setting up a rack, drive gear, motor, connecting rod, fixed part, movable part, drive pulley, driven pulley, transmission belt, driven gear, sliding block, and pressing assembly, the movement of the transport frame and the swing of the support frame are driven by the same motor, and are automatically switched by the opening and closing state of the gate: when the gate is open, the rack continuously meshes with the drive gear, and the motor drives the transport frame to move; when the gate is closed, the rack disengages, and at the same time the pressing assembly pushes the driven gear to mesh with the drive gear, and the motor drives the support frame to swing back and forth. 4. By setting a first pressure block, a return spring, a locking block, a locking spring, and a second pressure block, the locking block locks the driven pulley before the driving gear and the driven gear are fully engaged, preventing the support frame from rotating freely. And before the gate is fully closed and the driven gear is about to engage, the second pressure block pushes the locking block to release the lock. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an etching device for foldable screen production provided in the embodiments of this application.

[0028] Figure 2 This is a cross-sectional structural diagram of an etching device for foldable screen production provided in an embodiment of this application.

[0029] Figure 3 This is a schematic diagram illustrating the internal structure of the machine body in the embodiments of this application.

[0030] Figure 4 yes Figure 3 Enlarged view of section A.

[0031] Explanation of reference numerals in the attached drawings: 1. Body; 11. Etching chamber; 12. Cleaning chamber; 13. Nozzle; 14. Inlet / outlet; 15. Slide rail; 16. Gate cylinder; 161. Connecting frame; 162. Gate plate; 163. Second pressure block; 17. Observation window; 2. Transport frame; 21. Support frame; 22. Tensioning block; 221. Tensioning wheel; 222. Tensioning spring; 23. Locking block; 231. Locking spring; 3. Swinging mechanism; 31. Driving pulley; 32. Driven pulley; 33. Transmission belt; 34. Driven gear; 35. Sliding block; 36. Pressing assembly; 361. First pressure block; 362. Return spring; 4. Movable mechanism; 41. Rack; 411. Fixed part; 412. Movable part; 42. Driving gear; 43. Motor; 44. Connecting rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] This application discloses an etching apparatus for foldable screen production. (See also...) Figure 1 and Figure 2 The device includes a body 1, which contains at least two chambers. In this embodiment, two chambers are arranged at intervals along the length of the body 1, one chamber being an etching chamber 11 and the other a cleaning chamber 12. An observation window 17 is provided on the side wall of the body 1 for observing the interior of the chambers. Each chamber contains a set of vertically distributed nozzles 13, all of which are connected to a liquid pump via pipes. The nozzles 13 in the etching chamber 11 spray etching solution, and the nozzles 13 in the cleaning chamber 12 spray cleaning solution.

[0034] Reference Figure 1 and Figure 2 The chamber has inlets and outlets 14 extending through both side walls along the length of the body 1. In this embodiment, there are three inlets and outlets 14: one for connecting the etching chamber 11 to the outside of the body 1, one for connecting the etching chamber 11 to the cleaning chamber 12, and one for connecting the cleaning chamber 12 to the outside of the body 1. A slide rail 15 is fixedly installed inside the body 1 along its own length, passing through all the inlets and outlets 14, and both ends of the slide rail 15 extend to the outside of the body 1.

[0035] Reference Figure 1 and Figure 2 A transport frame 2 is horizontally slidable on the slide rail 15, and a support frame 21 is rotatably mounted on the transport frame 2. The axis of rotation of the support frame 21 is parallel to the width direction of the machine body 1. The support frame 21 is used to horizontally place the material plate. The bottom of the support frame 21 is hollow, so as not to obstruct the liquid sprayed from the nozzle 13 below from contacting the lower surface of the material plate. The four corners of the upper surface of the support frame 21 are integrally formed with L-shaped frames to jointly constrain the four corners of the side walls of the material plate and prevent the material plate from sliding out. The transport frame 2 is provided with a swing mechanism 3 and a movable mechanism 4. The swing mechanism 3 is used to drive the support frame 21 to rotate, and the movable mechanism 4 is used to drive the transport frame 2 to slide.

[0036] Reference Figure 1 and Figure 2 In use, the initial position of the transport frame 2 is located outside the end of the machine body 1 furthest from the cleaning chamber 12. The material plate is placed on the support frame 21, and the movable mechanism 4 drives the transport frame 2 to slide, transporting the material plate sequentially into the etching chamber 11 and the cleaning chamber 12. The material plate is sprayed with liquid from the nozzle 13 for etching and cleaning. During the spraying process, the swing mechanism 3 drives the support frame 21 and the material plate to swing back and forth at a certain angle, causing the material plate to tilt. This changes the horizontal state of the material plate surface, causing the liquid to preferentially flow in the tilted direction of the material plate, guiding the sprayed liquid to flow in an orderly manner and reducing stagnation.

[0037] To isolate the chambers during spraying from nozzle 13 and prevent cross-contamination from splashing liquids of different properties, refer to... Figure 1 and Figure 2 Several gates 162 are vertically slidably mounted on the machine body 1, each corresponding to an inlet / outlet 14. The gates 162 are used to close the inlets / outlets 14. A gate cylinder 16 is fixedly mounted on the machine body 1, with its output end facing upwards. A connecting frame 161 is also fixedly mounted on the cylinder, and the connecting frame 161 is fixedly connected to all the gates 162. When the transport frame 2 carries the material plate into any chamber, the gate cylinder 16 drives the connecting frame 161 to descend, and all the gates 162 close all the chambers, preventing liquid from leaving the chambers.

[0038] In order to drive the transport frame 2 to slide, refer to Figures 2 to 4 The moving mechanism 4 includes a rack 41, a drive gear 42, a motor 43, and a connecting rod 44. The motor 43 is fixedly connected to the transport frame 2, and the drive gear 42 is coaxially fixed to the drive shaft of the motor 43. The axis of the drive gear 42 is parallel to the width direction of the machine body 1. The rack 41 includes a fixed part 411 and a moving part 412. The fixed part 411 is located at the inlet / outlet 14, and the fixed parts 411 at both ends of the machine body 1 extend out of the machine body 1 and are fixedly connected to the machine body 1. The moving part 412 is located in the cavity and is fixedly connected to the bottom of the connecting rod 44. The top of the connecting rod 44 is fixedly connected to the connecting frame 161. When the gate 162 is opened, the moving part 412 and the fixed part 411 together form a continuous rack 41 in a straight direction. The rack 41 is located below the drive gear 42, and the drive gear 42 meshes with the rack 41.

[0039] Reference Figures 2 to 4 When the gate 162 is open, the movable part 412 and the fixed part 411 are continuous in a straight line. The motor 43 drives the drive gear 42 to rotate, and the drive gear 42 meshes with the rack 41, realizing the movement of the transport frame 2 itself. When the gate 162 is closed, if the transport frame 2 is located in the cavity, as the gate 162 and the connecting frame 161 move downward, the movable part 412 in the cavity disengages from the drive gear 42, and the drive gear 42 cannot mesh with the rack 41. At this time, the transport frame 2 cannot be driven to move by the motor 43.

[0040] In order to drive the support frame 21 to rotate, refer to Figure 3 and Figure 4 The swing mechanism 3 includes a driving pulley 31, a driven pulley 32, a transmission belt 33, a driven gear 34, a sliding block 35, and a pressing assembly 36. The sliding block 35 slides vertically on the transport frame 2 and is located above the driving gear 42. The driven gear 34 is rotatably connected to the sliding block 35, and the axis of rotation is parallel to the width direction of the machine body 1. The pressing assembly 36 is used to drive the sliding block 35 closer to or further away from the driving gear 42. The driven gear 34 can mesh with the driving gear 42. The driving pulley 31 is coaxially fixed with the driven gear 34, and the driven pulley 32 is coaxially fixed with the support frame 21. The transmission belt 33 is a synchronous belt, which is installed between the driving pulley 31 and the driven pulley 32. One end of the transmission belt 33 is sleeved on the driving pulley 31 and meshes with it, while the other end is sleeved on the driven pulley 32 and meshes with it.

[0041] Reference Figure 3 and Figure 4Specifically, the pressing component 36 includes a first pressing block 361 and a return spring 362. The first pressing block 361 is fixedly connected to the connecting rod 44. The bottom of the first pressing block 361 can abut against the sliding block 35 and push the sliding block 35 closer to the drive gear 42. The return spring 362 is used to drive the sliding block 35 away from the drive gear 42. The top of the return spring 362 is fixedly connected to the sliding block 35, and the bottom of the return spring 362 is fixedly connected to the transport frame 2. The return spring 362 is in a compressed state.

[0042] Reference Figure 3 and Figure 4 The transport frame 2 has two tensioning blocks 22 symmetrically and slidably arranged along the length of the machine body 1. A tensioning wheel 221 is rotatably mounted on each tensioning block 22. The tensioning wheel 221 is located inside the transmission belt 33, which passes around it. A tension spring 222 is also provided on the transport frame 2. One end of the tension spring 222 is fixedly connected to the machine body 1, and the other end is fixedly connected to the tensioning block 22. When the tension spring 222 is in a compressed state, it drives the tensioning wheel 221 to tension the transmission belt 33.

[0043] Reference Figure 3 and Figure 4 The transport frame 2 is vertically slidably equipped with a locking block 23. A locking spring 231 is provided on the transport frame 2 to drive the locking block 23 towards the driven pulley 32. The top end of the locking spring 231 is fixedly connected to the locking block 23, and the bottom end of the locking spring 231 is fixedly connected to the transport frame 2. The locking spring 231 is in a compressed state. The locking block 23 abuts against the driven pulley 32 and prevents the driven pulley 32 from rotating. The locking block 23 can be inserted into the tooth groove of the driven pulley 32 by setting locking teeth, or it can have a friction component to make frictional contact with the driven pulley 32. An unlocking component is provided inside the machine body 1 to drive the locking block 23 away from the driven pulley 32. The unlocking component includes a second pressing block 163, which is fixedly connected to the connecting rod 44 and can abut against the locking block 23.

[0044] Reference Figure 3 and Figure 4When the transport frame 2 is positioned in the chamber, the gate cylinder 16 drives the connecting frame 161 to move downwards, causing all the gate plates 162 to descend synchronously to close each inlet and outlet 14, thus isolating the etching chamber 11 and cleaning chamber 12 from the outside. During the downward movement of the connecting frame 161, the connecting rod 44 drives the first pressure block 361, the second pressure block 163, and the movable part 412 to move downwards synchronously. The movable part 412 first disengages from the drive gear 42. Then, the first pressure block 361 contacts and presses down on the sliding block 35, forcing the sliding block 35 to overcome the elastic force of the return spring 362 and move downwards, driving the driven gear 34 to engage with the drive gear 42. During this period, the tension spring 222 provides continuous elastic force to the tension block 22, ensuring that the tension wheel 221 always tensions the transmission belt 33 to accommodate the changes in the distance between the drive pulley 31 and the driven pulley 32 caused by the slippage of the sliding block 35. Before the driving gear 42 and the driven gear 34 complete meshing, the second pressure block 163 abuts against the locking block 23 and pushes the locking block 23 to move vertically downward, releasing the locking block 23 from the driven pulley 32 and preventing the driven pulley 32 from rotating unexpectedly before the driving gear 42 and the driven gear 34 mesh.

[0045] The implementation principle of the etching equipment for foldable screen production according to this application embodiment is as follows: During use, the initial position of the transport frame 2 is located outside the end of the machine body 1 away from the cleaning chamber 12. The material plate is placed on the support frame 21. The motor 43 drives the transport frame 2 to slide through the drive gear 42 meshing with the rack 41, transporting the material plate to the etching chamber 11 and the cleaning chamber 12 in sequence. The material plate is sprayed by the liquid sprayed from the nozzle 13. Finally, the transport frame 2 transports the material plate out of the machine body 1 from the inlet and outlet at the end away from the etching chamber 11. During the spraying process, the gate 162 moves down to close the inlet and outlet 14. The motor 43 meshes with the driven gear 34 through the drive gear 42, and drives the support frame 21 and the material plate to swing back and forth at a certain angle through the drive pulley 31, the transmission belt 33, and the driven pulley 32. The material plate tilts, thereby changing the horizontal state of the material plate surface. The liquid will preferentially flow in the tilt direction of the material plate, guiding the sprayed liquid to flow in an orderly manner and reducing stagnation.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An etching apparatus for foldable screen production, comprising a body (1), wherein the body (1) has at least two chambers, one of which is an etching chamber (11) and the other is a cleaning chamber (12), wherein a set of vertically distributed nozzles (13) are arranged in the chambers, and an inlet / outlet (14) is provided through the side wall of the chambers; characterized in that: The machine body (1) is fixedly provided with a slide rail (15), which passes through all inlets and outlets (14). A transport frame (2) is horizontally slidable on the slide rail (15). A support frame (21) is rotatably provided on the transport frame (2). The support frame (21) is used to place the material plate horizontally. The transport frame (2) is provided with a swing mechanism (3) and a movable mechanism (4). The swing mechanism (3) is used to drive the support frame (21) to rotate, and the movable mechanism (4) is used to drive the transport frame (2) to slide.

2. The etching equipment for foldable screen production according to claim 1, characterized in that: The machine body (1) is vertically slidably provided with several gates (162), each gate (162) corresponding to an inlet / outlet (14), and the gates (162) are used to close the inlet / outlet (14).

3. The etching equipment for foldable screen production according to claim 2, characterized in that: A gate cylinder (16) is fixedly installed on the body (1), and a common frame (161) is fixedly installed at the output end of the gate cylinder (16), and the common frame (161) is fixedly connected to all the gate plates (162).

4. The etching equipment for foldable screen production according to claim 3, characterized in that: The active mechanism (4) includes a rack (41), a drive gear (42), a motor (43), and a connecting rod (44). The motor (43) is fixedly connected to the transport frame (2). The drive gear (42) is coaxially fixed with the drive shaft of the motor (43). The rack (41) includes a fixed part (411) and a movable part (412). The fixed part (411) is located at the inlet / outlet (14) and is fixedly connected to the machine body (1). The movable part (412) is located in the cavity and is fixedly connected to the connecting rod (44). The connecting rod (44) is fixedly connected to the co-connecting frame (161). When the gate (162) is opened, the movable part (412) and the fixed part (411) are continuous in the straight direction, and the drive gear (42) meshes with the rack (41).

5. The etching equipment for foldable screen production according to claim 4, characterized in that: The swing mechanism (3) includes a driving pulley (31), a driven pulley (32), a transmission belt (33), a driven gear (34), a sliding block (35), and a pressing assembly (36). The sliding block (35) slides vertically on the transport frame (2). The driven gear (34) is rotatably connected to the sliding block (35). The pressing assembly (36) is used to drive the sliding block (35) closer to or away from the driving gear (42). The driven gear (34) can mesh with the driving gear (42). The driving pulley (31) is coaxially fixed with the driven gear (34). The driven pulley (32) is coaxially fixed with the support frame (21). The transmission belt (33) is configured to drive between the driving pulley (31) and the driven pulley (32).

6. The etching equipment for foldable screen production according to claim 5, characterized in that: The pressing assembly (36) includes a first pressing block (361) and a return spring (362). The first pressing block (361) is fixedly connected to the connecting rod (44). The first pressing block (361) can abut against the sliding block (35) and push the sliding block (35) closer to the drive gear (42). The return spring (362) is used to drive the sliding block (35) away from the drive gear (42).

7. The etching equipment for foldable screen production according to claim 5, characterized in that: A tensioning block (22) is slidably mounted on the transport frame (2), and a tensioning wheel (221) is rotatably mounted on the tensioning block (22). The transmission belt (33) passes around the tensioning wheel (221). A tensioning spring (222) is also mounted on the transport frame (2), and the tensioning spring (222) drives the tensioning wheel (221) to tension the transmission belt (33).

8. The etching equipment for foldable screen production according to claim 5, characterized in that: A locking block (23) is slidably disposed on the transport frame (2), and a locking spring (231) is disposed on the transport frame (2) for driving the locking block (23) closer to the driven pulley (32). The locking block (23) abuts against the driven pulley (32) and prevents the driven pulley (32) from rotating. An unlocking component is disposed inside the machine body (1), and the unlocking component is used to drive the locking block (23) away from the driven pulley (32).

9. An etching apparatus for producing foldable screens according to claim 8, characterized in that: The locking block (23) slides vertically on the transport frame (2), and the unlocking component includes a second pressing block (163), which is fixedly connected to the connecting rod (44). The second pressing block (163) can abut against the locking block (23).

10. An etching apparatus for producing foldable screens according to claim 5, characterized in that: The transmission belt (33) is a synchronous belt.

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