Screen frame hot-pressing equipment

Abstract

The utility model relates to the technical field of hot pressing, and discloses screen frame hot pressing equipment which comprises a bottom plate, the bottom plate is provided with a fixing frame, and two clamping plates are slidably connected between the front inner side wall and the rear inner side wall of the middle end of the fixing frame. According to the screen frame hot-pressing equipment, through the design of the clamping plates and the side plates which are in sliding connection, the equipment can easily adapt to screen frames of different sizes, flexible adjustment in the hot-pressing process is achieved, the universality and the production efficiency of the equipment are greatly improved, a cooling mechanism composed of an air pipe and a nozzle can rapidly cool the screen frames after hot-pressing is completed, and the cooling efficiency is improved. The device effectively shortens the production cycle, is provided with a pressure sensor, can monitor and feed back the pressure change in the hot pressing process in real time, effectively avoids the damage to the screen frame caused by overlarge pressure, integrates automatic elements such as a hydraulic push rod, a conveying roller, a power shaft and an electric push rod, realizes the automatic clamping, hot pressing, cooling and conveying of the screen frame, and improves the production efficiency. And the manual operation intensity is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hot pressing, and specifically relates to a screen frame hot pressing device. Background Art

[0002] A composite screen is a single-piece wire mesh composed of metal woven meshes, metal welded meshes, or metal stamping meshes with the same or different mesh wire diameters through welding, rolling, or sintering, and is commonly used in fields such as manufacturing screen printing plates. Screen printing has been widely used in the electronic industry, ceramic decal industry, textile printing and dyeing industry, packaging printing industry, etc.

[0003] A prior patent (publication number: CN216176240U) discloses a hot pressing device for a composite screen plate, including a machine body. An opening groove is provided inside the machine body. A first cylinder is fixedly installed at the top of the machine body. A hot pressing component is arranged at the output end of the first cylinder corresponding to the inside of the opening groove. A sliding component is arranged at the bottom end inside the opening groove. A feeding component is arranged at the front side of the machine body corresponding to one side of the opening groove. A control switch is fixedly installed on the front surface of the machine body. In the process of daily use of this hot pressing device for a composite screen plate, the heating tube is turned on to generate heat through the control switch. The hot pressing component is pushed downward by the first cylinder, and the composite screen plate is hot pressed by the hot pressing frame. Instead of the traditional full-coverage hot pressing method of the hot pressing plate, the frame structure of the hot pressing frame is used to locally hot press the composite screen plate, avoiding damage to the composite screen and protecting the stability of the tension, thereby improving the product quality.

[0004] However, after the hot pressing of the above device is completed, the screen plate needs to be quickly cooled to fix its shape and size. However, the device is not equipped with a corresponding cooling mechanism, resulting in the need for natural cooling of the hot pressed screen plate. This not only prolongs the production cycle but also may cause new deformation problems due to uneven cooling. Although the device realizes the control of the heating tube and the cylinder through the control switch, in actual production, for screen plates of different materials and thicknesses, the required parameters such as hot pressing temperature, pressure, and time are often different, and it is not easy to control the pressure. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the present application provides a screen frame hot pressing device, which has the advantages of high efficiency and solves the problems raised in the background art.

[0006] To achieve the above object, the present application provides the following technical solution: A screen frame hot pressing device includes a bottom plate. A fixed frame is provided on the bottom plate. Two clamping plates are slidably connected between the front and rear inner side walls at the middle end of the fixed frame. Side plates are provided on both inner side walls at the middle end of the fixed frame.

[0007] Two hydraulic push rods are fixedly installed at the bottom of the bottom plate, and the output ends of the two hydraulic push rods are fixedly connected with conveying frames. Conveying rollers are rotatably connected between the front and rear inner side walls of the two conveying frames.

[0008] Air pipes are fixedly embedded between the front and rear inner side walls at the top end of the fixed frame. A group of nozzles are fixedly communicated with the outer surfaces of the two air pipes, and the output ends of each nozzle are arranged obliquely downward.

[0009] Through the above scheme, through the design of the clamping plate and the side plate connected by sliding, the equipment can easily adapt to wire frames of different sizes, realizing flexible adjustment during the hot pressing process, greatly improving the versatility and production efficiency of the equipment. The cooling mechanism composed of the air pipe and the nozzle can quickly cool the wire frame after hot pressing is completed, effectively shortening the production cycle. The equipment is equipped with a pressure sensor, which can monitor and feedback the pressure change during the hot pressing process in real time, effectively avoiding damage to the wire frame caused by excessive pressure. It integrates automatic components such as hydraulic push rods, conveying rollers, power shafts, and electric push rods, realizing automatic clamping, hot pressing, cooling, and conveying of the wire frame, and greatly reducing the manual operation intensity.

[0010] Further, two connecting rods are fixedly connected to the bottom of the middle end of the fixed frame, and pressure sensors are installed between the two connecting rods and the bottom plate.

[0011] Through the above scheme, through the setting of the pressure sensor, the purpose of monitoring the pressure can be achieved, and damage to the wire frame caused by excessive applied pressure can be avoided.

[0012] Further, a hot press is installed on the inner top wall of the fixed frame.

[0013] Through the above scheme, through the setting of the hot press, the purpose of hot pressing the wire frame can be achieved.

[0014] Further, two rubber pads are fixedly installed between the fixed frame and the bottom plate.

[0015] Through the above scheme, through the setting of the rubber pads, it is convenient for the pressure sensor to monitor the pressure.

[0016] Further, power shafts are rotatably connected to the fronts of the two conveying frames. Pulley wheels are fixedly connected to the outer surfaces of each power shaft and the front ends of the conveying rollers. The pulley wheels close to each other are connected by belts in transmission, and the front ends of the two power shafts are fixedly connected to the output ends of an external motor.

[0017] Through the above scheme, through the setting of the external motor, power can be provided for the rotation of the conveying rollers.

[0018] Further, two electric push rods are fixedly installed at the bottom of the middle end of the fixing frame, and the output ends of the two electric push rods are respectively fixedly connected to the side plates close to them.

[0019] Through the above solution, through the setting of the electric push rods, power can be provided for the movement of the side plates.

[0020] Further, a bidirectional threaded rod is rotatably connected between the front and rear inner side walls of the middle end of the fixing frame. The two clamping plates are respectively threadedly connected to both ends of the bidirectional threaded rod, and the rear end of the bidirectional threaded rod is fixedly connected to the output end of an external motor.

[0021] Through the above solution, through the setting of the bidirectional threaded rod, the purpose of the two clamping plates approaching or separating from each other can be achieved.

[0022] Further, the front ends of the two air pipes are fixedly communicated with the output end of an external air pump. A sliding plate is fixedly connected to the right side surface of the bottom plate. The left end of the sliding plate contacts the right side surface of the fixing frame. A control host is installed at the left end of the upper surface of the bottom plate. The electric push rods, hydraulic push rods, external motor, external air pump, and pressure sensors are all electrically connected to the control host.

[0023] Through the above solution, through the setting of the sliding plate, the sliding of materials can be facilitated. Through the setting of the control host, the control of electrical components can be facilitated.

[0024] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0025] The screen frame hot pressing device, through the design of the clamping plates and side plates connected by sliding, the device can easily adapt to screen frames of different sizes, realizes flexible adjustment during the hot pressing process, greatly improves the versatility and production efficiency of the device. The cooling mechanism composed of air pipes and nozzles can quickly cool the screen frame after hot pressing is completed, effectively shortening the production cycle. The device is equipped with pressure sensors, which can monitor and feedback the pressure changes during the hot pressing process in real time, effectively avoiding damage to the screen frame caused by excessive pressure. It integrates automation components such as hydraulic push rods, conveying rollers, power shafts, and electric push rods, realizes automatic clamping, hot pressing, cooling, and conveying of the screen frame, and greatly reduces the manual operation intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic three-dimensional view of the overall structure of the present application Figure One ;

[0027] Figure 2 Schematic three-dimensional view of the overall structure of the present application Figure Two ;

[0028] Figure 3 Front view of the overall structure of the present application;

[0029] Figure 4 This is the structural diagram of the conveying roller of the present application.

[0030] In the figure:

[0031] 1. Bottom plate; 2. Fixed frame; 3. Clamping plate; 4. Side plate; 5. Hydraulic push rod; 6. Conveying frame; 7. Conveying roller; 8. Air pipe; 9. Nozzle; 10. Connecting rod; 11. Pressure sensor; 12. Hot press; 13. Rubber pad; 14. Power shaft; 15. Pulley; 16. Electric push rod; 17. Bidirectional threaded rod; 18. Slide plate; 19. Control host. Specific implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, a screen frame hot pressing device includes a bottom plate 1. A fixed frame 2 is provided on the bottom plate 1. Between the front and rear inner side walls of the middle end of the fixed frame 2, two clamping plates 3 are slidably connected. Between the front and rear inner side walls of the middle end of the fixed frame 2, a bidirectional threaded rod 17 is rotatably connected. The two clamping plates 3 are respectively threadedly connected to both ends of the bidirectional threaded rod 17. The rear end of the bidirectional threaded rod 17 is fixedly connected to the output end of an external motor. Through the setting of the bidirectional threaded rod 17, the purpose of making the two clamping plates 3 approach or move away from each other can be achieved. Through the setting of the clamping plates 3, the purpose of fixing screen frames of different sizes can be achieved. On both inner side walls of the middle end of the fixed frame 2, side plates 4 are provided. Through the setting of the side plates 4, the two sides of the screen frame can be fixed. On the inner top wall of the fixed frame 2, a hot press 12 is installed. Through the setting of the hot press 12, the purpose of hot pressing the screen frame can be achieved. At the bottom of the middle end of the fixed frame 2, two electric push rods 16 are fixedly installed. The output ends of the two electric push rods 16 are respectively fixedly connected to the side plates 4 close to them. Through the setting of the electric push rods 16, power can be provided for the movement of the side plates 4.

[0034] Please refer to Figure 1 , Figure 2 and Figure 4, two hydraulic push rods 5 are fixedly installed at the bottom of the bottom plate 1. The output ends of the two hydraulic push rods 5 are fixedly connected with conveying frames 6. Conveying rollers 7 are rotatably connected between the front and rear inner side walls of the two conveying frames 6. Through the arrangement of the conveying rollers 7, after hot pressing is completed, the hydraulic push rods 5 can be driven to make the conveying rollers 7 contact the wire frame, and the purpose of moving it through friction can be achieved, so as to achieve the effect of automatic blanking. Power shafts 14 are rotatably connected to the fronts of the two conveying frames 6. Pulley 15 are fixedly connected to the outer surfaces of each power shaft 14 and the front ends of the conveying rollers 7. Each two adjacent pulleys 15 are connected by a belt. The front ends of the two power shafts 14 are fixedly connected to the output ends of an external motor. Through the arrangement of the external motor, power can be provided for the rotation of the conveying rollers 7.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , air pipes 8 are fixedly embedded between the front and rear inner side walls at the top of the fixed frame 2. A group of nozzles 9 are fixedly communicated with the outer surfaces of the two air pipes 8. The output end of each nozzle 9 is arranged obliquely downward. Through the arrangement of the air nozzles, the purpose of cooling the wire frame can be achieved, and its shaping efficiency can be improved.

[0036] Please refer to Figure 1 , Figure 2 and Figure 3 , two connecting rods 10 are fixedly connected to the bottom of the middle end of the fixed frame 2. Pressure sensors 11 are installed between the two connecting rods 10 and the bottom plate 1. Through the arrangement of the pressure sensors 11, the purpose of monitoring the pressure can be achieved, and the wire frame can be prevented from being damaged due to excessive applied pressure. Two rubber pads 13 are fixedly installed between the fixed frame 2 and the bottom plate 1. Through the arrangement of the rubber pads 13, it is convenient for the pressure sensors 11 to monitor the pressure. The front ends of the two air pipes 8 are fixedly communicated with the output end of an external air pump. A sliding plate 18 is fixedly connected to the right side surface of the bottom plate 1. The left end of the sliding plate 18 contacts the right side surface of the fixed frame 2. A control host 19 is installed at the left end of the upper surface of the bottom plate 1. The electric push rod 16, the hydraulic push rod 5, the external motor, the external air pump and the pressure sensor 11 are all electrically connected to the control host 19. Through the arrangement of the sliding plate 18, it is convenient for the material to slide. Through the arrangement of the control host 19, it is convenient to control the electrical components.

[0037] A screen frame hot pressing device in this embodiment is designed with a clamping plate 3 and a side plate 4 connected by sliding. This device can easily adapt to screen frames of different sizes, achieving flexible adjustment during the hot pressing process, greatly improving the versatility and production efficiency of the device. The cooling mechanism composed of an air pipe 8 and a nozzle 9 can quickly cool the screen frame after hot pressing is completed, effectively shortening the production cycle. The device is equipped with a pressure sensor 11, which can monitor and feedback the pressure change during the hot pressing process in real time, effectively avoiding damage to the screen frame caused by excessive pressure. It integrates automation components such as a hydraulic push rod 5, a conveying roller 7, a power shaft 14, and an electric push rod 16, realizing automatic clamping, hot pressing, cooling, and conveying of the screen frame, and greatly reducing the manual operation intensity.

[0038] The working principle of the above embodiment is as follows: The operator places the screen frame to be hot pressed on the fixed frame 2 and adjusts the positions of the clamping plate 3 and the side plate 4. The electric push rod 16 and the bidirectional threaded rod 17 drive the side plate 4 and the clamping plate 3 to move, firmly clamping the screen frame. When the device is preheated, the control host 19 sends a signal to start the hot press 12. The hot press 12 moves downward to contact the workpiece, and the heating element in the hot press 12 starts to heat up and transfers the heat to the screen frame through structures such as the hot pressing frame. During the hot pressing process, the pressure sensor 11 monitors the hot pressing pressure in real time to ensure it is within a safe range. After hot pressing is completed, the control host 19 sends a signal to start the external pump body. The cooling gas in the air pipe 8 is sprayed onto the surface of the screen frame through the nozzle 9, quickly reducing its temperature. After cooling is completed, the side plate 4 and the clamping plate 3 are reset. The control host 19 sends a signal to start the hydraulic push rod 5. The hydraulic push rod 5 pushes the conveying frame 6 and the conveying roller 7 thereon to rise, making the conveying roller 7 contact the screen frame. Subsequently, the external motor drives the power shaft 14 to rotate, and drives the conveying roller 7 to rotate through the pulley 15 and the belt transmission mechanism. The conveying roller 7 uses friction to move the screen frame out of the hot pressing area, and the screen frame enters the slide plate 18 under the guidance of the conveying roller 7, realizing automatic blanking.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to this process, method, article or device. Without more limitations, the element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0040] Although embodiments of the present application have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A screen frame hot pressing device, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with a fixing frame (2), two clamping plates (3) are slidably connected between the front and rear inner side walls of the middle end of the fixing frame (2), and side plates (4) are provided on both inner side walls of the middle end of the fixing frame (2); Two hydraulic push rods (5) are fixedly mounted at the bottom of the base plate (1); the output ends of the two hydraulic push rods (5) are fixedly connected to a conveying frame (6); and conveying rollers (7) are rotatably connected between the front and rear inner side walls of the two conveying frames (6); An air pipe (8) is fixedly embedded between the front and rear inner walls of the top end of the fixing frame (2), and the outer surfaces of the two air pipes (8) are fixedly connected to a group of nozzles (9), and the output end of each nozzle (9) is arranged to be inclined downward.

2. A screen frame hot pressing device according to claim 1, characterized in that: Two connecting rods (10) are fixedly connected to the bottom of the middle end of the fixing frame (2), and pressure sensors (11) are installed between the two connecting rods (10) and the bottom plate (1).

3. The screen frame hot pressing device according to claim 1, characterized in that: A heat press (12) is installed on the inner top wall of the fixing frame (2).

4. The screen frame hot pressing device according to claim 1, characterized in that: Two rubber pads (13) are fixedly mounted between the fixing frame (2) and the bottom plate (1).

5. The screen frame hot pressing device according to claim 1, characterized in that: The front sides of the two conveying frames (6) are rotatably connected to a power shaft (14), the outer surface of each power shaft (14) and the front end of the conveying roller (7) are fixedly connected to a pulley (15), and every two adjacent pulleys (15) are connected via a belt transmission, and the front ends of the two power shafts (14) are fixedly connected to the output end of an external motor.

6. The screen frame hot pressing device according to claim 1, characterized in that: Two electric push rods (16) are fixedly mounted on the bottom of the middle end of the fixing frame (2), and the output ends of the two electric push rods (16) are respectively fixedly connected to the side plates (4) adjacent thereto.

7. The screen frame hot pressing device according to claim 1, characterized in that: A bidirectional threaded rod (17) is rotatably connected between the front and rear inner side walls of the middle end of the fixing frame (2), the two clamping plates (3) are respectively threadedly connected to the two ends of the bidirectional threaded rod (17), and the rear end of the bidirectional threaded rod (17) is fixedly connected to the output end of the external motor.

8. The screen frame hot pressing device according to claim 1, characterized in that: The front ends of the two air pipes (8) are fixedly connected to the output ends of an external air pump, a slide plate (18) is fixedly connected to the right side surface of the base plate (1), the left end of the slide plate (18) contacts the right side surface of the fixing frame (2), a control host (19) is installed at the left end of the upper surface of the base plate (1), and the electric push rod (16), the hydraulic push rod (5), the external motor, the external air pump and the pressure sensor (11) are all electrically connected to the control host (19).

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