Opening and closing device and coating die head

Abstract

The utility model relates to the technical field of coating machines and coating machine accessories, in particular to an opening and closing device and a coating die head, the opening and closing device is used for controlling the opening and closing of a first die head and a second die head of the coating die head, and the opening and closing device comprises two groups of opening and closing components which are respectively arranged at two ends of the coating die head; each opening and closing assembly comprises a hinge seat, a first hinge block and a driving piece. The hinge seat is connected with the second die head; one end of the first hinge block is rotatably connected with the hinge seat in the length direction of the coating die head, and the other end is connected with the first die head; the driving piece is arranged on the hinge seat, the output end of the driving piece is in driving connection with the first hinge block, and the driving piece is suitable for driving the first hinge block to rotate on the hinge seat so as to drive the first die head and the second die head to be opened or closed. The technical problems that according to an existing coating die head, a hinge assembly needs to be manually operated to achieve opening and closing of a first die head and a second die head, and time and labor are wasted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines and coating machine accessories, in particular to an opening and closing device and a coating die head. Background Art

[0002] Slot extrusion coating, as a precision wet coating technology, works on the principle that the slurry is extruded and sprayed along the slit of the coating die under a certain pressure and flow rate and transferred to the substrate. Compared with other coating methods, it has many advantages, such as fast coating speed, high precision, and uniform wet thickness; the coating system is closed, which can prevent pollutants from entering during the coating process, has high slurry utilization, can maintain stable slurry properties, can carry out multi-layer coating at the same time, and can adapt to different slurry viscosities and solid content ranges.

[0003] An existing coating die is usually composed of a first die, a second die and a gasket sandwiched therebetween. The height of the gasket determines the height of the coating slit. If material accumulation or blockage is found in the die cavity or slit of the coating die during use, the die needs to be opened for cleaning. A hinge assembly is usually provided on the coating die. The hinge assembly includes an upper connecting block connected to the first die and a middle connecting block connected to the second die. The upper connecting block is hinged to the lower connecting block. When the die needs to be opened, the hinge assembly needs to be manually operated to open and close the first die and the second die, which is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model provides an opening and closing device and a coating die head, which solves the technical problem that the existing coating die head needs to manually operate a hinge assembly to realize the opening and closing of a first die head and a second die head, which is time-consuming and labor-intensive.

[0005] In view of this, the first aspect of the present invention provides an opening and closing device for controlling the opening and closing of a first die head and a second die head of a coating die head, the opening and closing device comprising:

[0006] Two groups of opening and closing components are respectively arranged at the two ends of the coating die head; each group of the opening and closing components includes an articulated seat, a first articulated block and a driving member; the articulated seat is connected to the second die head; one end of the first articulated block is rotatably connected to the articulated seat around the length direction of the coating die head, and the other end is connected to the first die head; the driving member is arranged on the articulated seat, and the output end of the driving member is drivingly connected to the first articulated block, suitable for driving the first articulated block to rotate on the articulated seat to drive the first die head and the second die head to open or close the mold.

[0007] Optionally, a first limit block is provided on the articulated seat on one side close to the coating lip of the coating die head; the position of the first limit block corresponds to the position of the first hinge block, and is suitable for abutting and limiting the first hinge block when the first hinge block rotates to a preset angle.

[0008] Optionally, a groove is provided on the articulated seat along the lip direction of the coating die head, and one end of the first articulated block can be rotatably connected in the groove; one end of the first limit block extends into the groove, and the first limit block is slidably connected to the articulated seat along the lip direction of the coating die head.

[0009] Optionally, the first limit block is slidably connected to the articulated seat through an adjustment component; the adjustment component includes a fixed plate and an adjustment screw; the fixed plate is fixedly connected to the articulated seat, and a limit groove is provided on the fixed plate along the lip direction of the coating die head; the adjustment screw passes through the limit groove and is threadedly connected to the first limit block, and the adjustment screw slides in cooperation with the limit groove.

[0010] Optionally, the articulated seat includes a second articulated block and a third articulated block, the second articulated block is connected to the second die head, and the third articulated block is connected to the side of the second articulated block away from the second die head; the second articulated block and the third articulated block enclose the second articulated block to form the groove.

[0011] Optionally, the driving member is connected to the first hinge block via a driving shaft; the driving shaft passes through the hinge seat and the first hinge block along the length direction of the coating die head, and the driving shaft is rotatably connected to the hinge seat; the output end of the driving member is connected to the driving shaft, suitable for driving the driving shaft to rotate; the driving shaft is connected to the first hinge block, suitable for driving the first hinge block to rotate synchronously.

[0012] Optionally, the hinge seat is provided with two through holes on both sides of the slot, each of which is provided with a bearing; and the drive shaft is sequentially passed through the two bearings.

[0013] Optionally, the driving component includes a servo motor and a reducer, the reducer is arranged on the side of the hinged seat away from the coating die head; the servo motor is connected to the reducer, and the output end of the servo motor is drivingly connected to the input end of the reducer; the output end of the reducer is keyed to the drive shaft.

[0014] Optionally, a second limit block is detachably connected to the side of the articulated seat that is away from the coating lip of the coating die head; the position of the second limit block corresponds to the position of the first articulated block, and is suitable for abutting and limiting the first articulated block when the first articulated block is rotated to a preset angle.

[0015] The second aspect of the utility model provides a coating die, comprising a first die, a second die and an opening and closing device as described in any one of the first aspects; the first die is arranged on the top of the second die; two groups of opening and closing components of the opening and closing device are respectively arranged at both ends of the second die, suitable for driving the first die and the second die to open or close the mold through the opening and closing components.

[0016] The technical solution of the utility model has the following advantages:

[0017] In the utility model, when the first die head and the second die head need to be opened for cleaning, the two first hinge blocks can be driven to rotate on the hinge seat at the same time by two driving members, thereby driving the first die head to rotate along with the first hinge block around the length direction of the coating die head, thereby realizing the flipping of the first die head and realizing the mold opening between the first die head and the second die head. The mold opening process is as follows: Figure 5 to Figure 6 As shown, it is convenient to clean the inner cavity and the slit of the coating die head, which is convenient and quick, avoids manual flipping, saves time and effort, and after the cleaning is completed, the first hinge block is driven in the reverse direction by the driving member to rotate, so as to achieve the mold closing between the first die head and the second die head. The mold closing process is shown in FIG. Figures 9 and 10 At the same time, the rotation angle of the first hinge block can be driven by the program setting driving member, thereby controlling the flipping angle of the first die head. The specific flipping angle can be determined according to the actual situation to achieve precise control of the opening and closing angle, improve the degree of intelligence, avoid excessive or small flipping angles, and cause collision damage between the first die head and the second die head, thereby improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a coating die head provided by the utility model at a first viewing angle;

[0020] Figure 2 An exploded view of an opening and closing device provided by the utility model at a second viewing angle;

[0021] Figure 3 An exploded view of an opening and closing device provided by the utility model at a third viewing angle;

[0022] Figure 4A schematic diagram of the partial structure of an opening and closing device provided by the utility model;

[0023] Figure 5 A schematic diagram of a first state of the mold opening process of the first die head and the second die head provided by the utility model;

[0024] Figure 6 A schematic diagram of a second state of the mold opening process of the first die head and the second die head provided by the utility model;

[0025] Figure 7 A schematic diagram of a state in which the first die head and the second die head provided by the utility model are limited at a fourth viewing angle by a second limiting block during the mold opening process;

[0026] Figure 8 A schematic diagram of a state in which the first die head and the second die head provided by the utility model are limited at a fifth viewing angle by a second limiting block during the mold opening process;

[0027] Fig. 9 A schematic diagram of a first state of the mold closing process of the first die head and the second die head provided by the utility model;

[0028] Fig.10 A schematic diagram of a second state of the mold closing process of the first die head and the second die head provided by the utility model;

[0029] Fig.11 This is a schematic diagram of a third state of the mold closing process of the first die head and the second die head provided by the utility model.

[0030] Description of reference numerals:

[0031] 1. First die head; 2. Second die head; 3. First hinge block; 4. Slot; 5. Drive shaft; 6. First limit block; 7. Fixed plate; 8. Adjusting screw; 9. Limit slot; 10. Bearing; 11. Second hinge block; 12. Third hinge block; 13. Servo motor; 14. Reducer; 15. Second limit block; 16. Mounting seat; 17. Through hole; 18. First flat key; 19. First keyway. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Example 1

[0037] See also Figures 1 to 11 The present embodiment provides an opening and closing device, which is used to control the opening and closing of a first die head 1 and a second die head 2 of a coating die head. The opening and closing device comprises: two groups of opening and closing components, which are respectively arranged at the two ends of the coating die head; each group of opening and closing components comprises a hinge seat, a first hinge block 3 and a driving member; the hinge seat is connected to the second die head 2; one end of the first hinge block 3 is rotatably connected to the hinge seat around the length direction of the coating die head, and the other end is connected to the first die head 1; the driving member is arranged on the hinge seat, and the output end of the driving member is drivingly connected to the first hinge block 3, which is suitable for driving the first hinge block 3 to rotate on the hinge seat to drive the first die head 1 and the second die head 2 to open or close the mold.

[0038] In this embodiment, when the first die head 1 and the second die head 2 need to be opened for cleaning, the two first hinge blocks 3 can be driven to rotate on the hinge seat at the same time by two driving members, thereby driving the first die head 1 to rotate along with the first hinge block 3 around the length direction of the coating die head, thereby realizing the flipping of the first die head 1 and realizing the mold opening between the first die head 1 and the second die head 2. The mold opening process is as follows: Figure 5 to Figure 6As shown, it is convenient to clean the inner cavity and the slit of the coating die head, which is convenient and quick, avoids manual flipping, saves time and effort, and after the cleaning is completed, the first hinge block 3 is driven in the reverse direction by the driving member to rotate, so as to realize the mold closing between the first die head 1 and the second die head 2. The mold closing process is shown in FIG. Figures 9 and 10 At the same time, the rotation angle of the first hinge block 3 can be driven by the program setting driving member, thereby controlling the flipping angle of the first die head 1. The specific flipping angle can be determined according to the actual situation to achieve precise control of the opening and closing angle, improve the degree of intelligence, avoid excessive or small flipping angles, and cause collision damage between the first die head 1 and the second die head 2, thereby improving the service life.

[0039] Example 2

[0040] As a further improvement to Example 1, Figure 4 As shown, a first limit block 6 is provided on one side of the articulated seat close to the coating lip of the coating die head; the position of the first limit block 6 corresponds to the position of the first articulated block 3, and is suitable for abutting and limiting the first articulated block 3 when the first articulated block 3 rotates to a preset angle.

[0041] In this embodiment, a first limit block 6 is provided to abut against the first hinge block 3 when the first die head 1 is driven to flip to a preset angle and close the mold with the second die head 2, thereby preventing the first die head 1 from being damaged by colliding with the second die head 2 due to an excessively large flipping angle during mold closing, thereby improving the service life, and cooperating with the driving component to further limit the flipping angle of the first die head 1 to improve the limiting effect.

[0042] Based on the above implementation, in a preferred implementation, Figures 9 to 11 As shown, a groove 4 is provided on the articulated seat along the lip direction of the coating die head, and one end of the first articulated block 3 is rotatably connected in the groove 4; one end of the first limit block 6 extends into the groove 4, and the first limit block 6 is slidably connected to the articulated seat along the lip direction of the coating die head.

[0043] It should be noted that the groove 4 is arranged to penetrate along the coating lip direction of the coating die head, so as to facilitate the first hinge block 3 to rotate in the groove 4; the width of the first limit block 6 is smaller than the width of the groove 4, so as to facilitate the first limit block 6 to move in the groove 4.

[0044] In this embodiment, the first limit block 6 is adjusted to slide toward or away from the coating lip of the coating die, thereby changing the limit angle of rotation of the first hinge block 3 when the first die 1 and the second die 2 are molded together. At this time, the limit angle is a safety limit angle, that is, the limit angle of flipping when the first die 1 is molded is changed. In a specific application, the first limit block 6 can be pre-adjusted to slide toward the side away from the coating lip of the coating die, that is, to slide toward the side of the slot 4, such as Fig. 9As shown, the opening angle of the coating lip is increased when the first hinge block 3 abuts against the first limit block 6, thereby increasing the safety limit angle to avoid direct contact between the first die head 1 and the second die head 2 during mold closing, so that when the first hinge block 3 abuts against the first limit block 6, the first die head 1 and the second die head 2 are not completely fitted, as shown in FIG. Fig.10 As shown, after the first hinge block 3 abuts against the first limit block 6, the first limit block 6 is adjusted to slide toward the coating lip of the coating die head, so that the first die head 1 can continue to flip until it is completely fitted with the second die head 2, as shown in FIG. Fig.11 As shown, the first die head 1 can be prevented from being directly flipped over to fit the second die head 2, thereby preventing the second die head 2 from being damaged by collision, thereby increasing the service life. The specific adjustment can be made according to actual conditions. When the first hinge block 3 reaches the safety limit angle, the opening angle of the coating lip can be selected to be 1-2 degrees. Preferably, the opening angle of the coating lip is 1.5 degrees.

[0045] Specifically, Figure 4 As shown, the first limiting block 6 is a wedge-shaped block, and the inclined surface of the wedge-shaped block faces the side of the slot 4, thereby improving the limiting effect and the adjustment effect.

[0046] Specifically, the first limiting block 6 abuts against the bottom of the slot 4 to improve the supporting strength during limiting.

[0047] Based on the above implementation, in a preferred implementation, Figure 4 As shown, the first limit block 6 is slidably connected to the hinge seat through an adjustment component; the adjustment component includes a fixed plate 7 and an adjustment screw 8; the fixed plate 7 is fixedly connected to the hinge seat, and a limit groove 9 is provided on the fixed plate 7 along the lip direction of the coating die head; the adjustment screw 8 passes through the limit groove 9 and is threadedly connected to the first limit block 6, and the adjustment screw 8 and the limit groove 9 are slidably matched.

[0048] In this embodiment, when it is necessary to adjust the position of the first limit block 6, the adjusting screw 8 can be loosened, and at the same time, the first limit block 6 can be driven to slide in the lip direction of the coating die head by the adjusting screw 8 under the limit of the limit groove 9. After the first limit block 6 is adjusted to the preset position, the first hinge block 3 drives the first die head 1 to close the mold with a safety limit angle, and then the adjusting screw 8 is tightened so that the adjusting screw 8 and the first limit block 6 are clamped and fixed on the fixed plate 7 to prevent movement. After the first hinge block 3 reaches the safety limit angle, the adjusting screw 8 is loosened again, and the first limit block 6 is adjusted to move toward the coating lip direction, so as to facilitate driving the first hinge block 3 to rotate again to drive the first die head 1 and the second die head 2 to fit completely. It is also convenient to replace the first limit block 6 after removing the adjusting screw 8.

[0049] Based on the above implementation, in a preferred implementation, Figure 2 and Figure 3As shown, the articulated seat includes a second articulated block 11 and a third articulated block 12. The second articulated block 11 is connected to the second die head 2, and the third articulated block 12 is connected to the side of the second articulated block 11 away from the second die head 2. The second articulated block 11 and the third articulated block 12 enclose a groove 4.

[0050] In this embodiment, the hinge seat is formed by connecting the second hinge block 11 and the third hinge block 12, and adopts a split setting, which is easy to install and disassemble, and improves practicality.

[0051] Based on the above implementation, in a preferred implementation, Figures 1 to 4 As shown, the driving member is connected to the first articulated block 3 through the driving shaft 5; the driving shaft 5 passes through the articulated seat and the first articulated block 3 along the length direction of the coating die head, and the driving shaft 5 is rotatably connected to the articulated seat; the output end of the driving member is connected to the driving shaft 5, suitable for driving the driving shaft 5 to rotate; the driving shaft 5 is connected to the first articulated block 3, suitable for driving the first articulated block 3 to rotate synchronously.

[0052] It should be noted that the first hinge block 3 is sleeved on the driving shaft 5 .

[0053] In this embodiment, the driving shaft 5 corresponds to the slot 4 that passes through the hinge seat and the first hinge block 3, the hinge seat supports the driving shaft 5, and drives the driving shaft 5 to rotate on the hinge seat through the driving member, thereby driving the first hinge block 3 to rotate around the driving shaft 5 in the slot 4, so as to realize the opening or closing of the first die head 1 and the second die head 2.

[0054] Specifically, the fixing plate 7 is connected to the hinge seat by screws, which is convenient for installation and disassembly.

[0055] Based on the above implementation, in a preferred implementation, Figure 3 As shown, two through holes 17 are respectively penetrated on both sides of the slot 4 on the hinge seat, and a bearing 10 is arranged in each through hole 17; the drive shaft 5 is sequentially arranged in the two bearings 10.

[0056] In this embodiment, by providing the through hole 17 and arranging the bearing 10 in the through hole 17, the supporting capacity of the driving shaft 5 is improved, the driving shaft 5 is facilitated to rotate, and the driving smoothness is improved.

[0057] Specifically, the bearing 10 is a deep groove ball bearing 10 .

[0058] Specifically, the second hinge block 11 and the third hinge block 12 are connected by screws, which is convenient for installation and disassembly.

[0059] Specifically, the second hinge block 11 is connected to the second die head 2 by screws, which is convenient for installation and disassembly.

[0060] Based on the above implementation, in a preferred implementation, Figure 2 As shown, the driving shaft 5 is key-connected to the first hinge block 3 .

[0061] In this embodiment, the driving shaft 5 and the first hinge block 3 are connected by a key, which is convenient for driving the first hinge block 3 to rotate together and is also convenient for installation and disassembly.

[0062] Specifically, Figure 2 As shown, the drive shaft 5 is provided with a first flat key 18 corresponding to the first hinge block 3, and the first flat key 18 is arranged along the axial direction of the drive shaft 5. The first hinge block 3 is provided with a first opening corresponding to the drive shaft 5, and the side wall of the first opening is axially penetrated with a first keyway 19 adapted to the first flat key 18. When connected, the drive shaft 5 passes through the first opening, and the first flat key 18 is penetrated in the first keyway 19. The driving force is transmitted by the cooperation of the first flat key 18 and the first keyway 19, which is also convenient for installation and disassembly.

[0063] Specifically, the width of the slot 4 is adapted to the width of one end of the first hinge block 3 extending into the slot 4 , and the two side walls of the slot 4 are used to limit the position, thereby improving the stability of the first hinge block 3 when rotating.

[0064] Based on the above implementation, in a preferred implementation, Figure 1 As shown, the driving part includes a servo motor 13 and a reducer 14, and the reducer 14 is arranged on the side of the hinged seat away from the coating die head; the servo motor 13 is connected to the reducer 14, and the output end of the servo motor 13 is drivingly connected to the input end of the reducer 14; the output end of the reducer 14 is key-connected to the drive shaft 5.

[0065] It should be noted that the end of the driving shaft 5 away from the coating die head is connected to the output end of the reducer 14 .

[0066] In this embodiment, the servo motor 13 cooperates with the reducer 14 to increase the output torque, facilitate flipping of the first die head 1, and improve stability. At the same time, the output end of the reducer 14 is key-connected to the drive shaft 5 to facilitate connection and torque transmission.

[0067] Specifically, Figure 2 As shown, a second flat key is provided on the drive shaft 5 at the output end corresponding to the reducer 14, and the second flat key is arranged along the axial direction of the drive shaft 5. A second opening is provided at the output end of the reducer 14 corresponding to the output shaft, and a second key groove adapted to the second flat key is penetrated through the side wall of the second opening along its axial direction. When connected, the end of the drive shaft 5 passes through the second opening, and the second flat key is inserted into the second key groove. The driving force is transmitted by the cooperation of the second flat key and the second key groove, which is also convenient for installation and disassembly.

[0068] Based on the above implementation, in a preferred implementation, Figure 3 , Figure 7 and Figure 8 As shown, a second limit block 15 is detachably connected to the side of the articulated seat that is away from the coating lip of the coating die head; the position of the second limit block 15 corresponds to the position of the first articulated block 3, and is suitable for abutting and limiting the first articulated block 3 when the first articulated block 3 rotates to a preset angle.

[0069] In this embodiment, the first hinge block 3 is limited by the second limit block 15 when driving the first die head 1 to flip and open the mold, so as to avoid the first die head 1 flipping over too large an angle when opening the mold, thereby preventing damage to the second die head 2 caused by collision, thereby improving the service life, and cooperating with the driving component to further limit the maximum flipping angle of the first die head 1 to improve the limiting effect. At the same time, the second limit block 15 is detachably connected. Specifically, the connection method can be selected as a screw connection, which is convenient for replacing the second limit block 15. Second limit blocks 15 of different sizes can be replaced according to actual conditions to change the maximum angle of limiting the second limit block 15. Preferably, the maximum flipping angle of the first die head 1 when opening the mold is 116.5 degrees.

[0070] Based on the above implementation, in a preferred implementation, Figure 2 and Figure 3 As shown, the driving member is connected to the hinge seat via the mounting seat 16 .

[0071] In this embodiment, the driving member is connected to the hinge seat via the mounting seat 16, thereby increasing the support strength and improving the stability.

[0072] Specifically, the first hinge block 3 is connected to the first die head 1 by screws, which is convenient for installation and disassembly.

[0073] Specifically, the hinged seat is connected to the second die head 2 by screws, which is convenient for installation and disassembly.

[0074] The specific working principle of the opening and closing device provided in this embodiment is as follows: when it is necessary to open the first die head 1 and the second die head 2 for cleaning, the servo motors 13 located on both sides of the coating die head can be started at the same time, and the drive shaft 5 can be driven to rotate through the reducer 14, thereby driving the first hinge block 3 to rotate on the hinge seat, thereby driving the first die head 1 to rotate along with the first hinge block 3 around the length direction of the coating die head, and then turning the first die head 1 over. After the first die head 1 is turned over to the point where the first hinge block 3 abuts against the second limit block 15, the limit stop is performed, and the mold opening between the first die head 1 and the second die head 2 is completed. The mold opening process is as follows: Figures 5 to 8As shown, it is convenient to clean the inner cavity and the slit of the coating die head, which is convenient and quick, avoids manual flipping, saves time and effort, and after the cleaning is completed, the servo motor 13 is used to reversely drive the first hinge block 3 to rotate, and the first hinge block 3 stops after abutting against the first limit block 6, and then the first limit block 6 is adjusted to move toward the coating lip side and then the first hinge block 3 is continued to drive the first die head 1 to flip and close the film until the first die head 1 and the second die head 2 are completely fitted together, so as to achieve safe mold closing between the first die head 1 and the second die head 2, and avoid the first die head 1 directly fitting the second die head 2 to cause bumps and damage. The mold closing process is shown in FIG. Figures 9 and 10 At the same time, the servo motor 13 can be set by the program to drive the rotation angle of the first hinge block 3, thereby controlling the flip angle of the first die head 1. The specific flip angle can be determined according to the actual situation, so as to achieve precise control of the opening and closing angle, improve the degree of intelligence, avoid excessive or small flip angles, and cause collision damage between the first die head 1 and the second die head 2, and improve the service life. The technical problem that the existing coating die head needs to manually operate the hinge assembly to realize the opening and closing of the first die head 1 and the second die head 2, which is time-consuming and labor-intensive, is solved.

[0075] Example 3

[0076] See also Figures 1 to 11 This embodiment provides a coating die, including a first die 1, a second die 2 and an opening and closing device as described in Example 1 or Example 2; the first die 1 is arranged on the top of the second die 2; the two groups of opening and closing components of the opening and closing device are respectively arranged at the two ends of the second die 2, suitable for driving the first die 1 and the second die 2 to open or close the mold through the opening and closing components.

[0077] In this embodiment, an opening and closing assembly is arranged at both ends of the second die head 2, and the adjusting end of the opening and closing assembly is connected to the first die head 1, that is, the first hinge block 3 of the opening and closing assembly is connected to the first die head 1, and the hinge seat is connected to the second die head 2, so as to realize the opening or closing of the first die head 1 and the second die head 2; the coating die head provided in this embodiment adopts the opening and closing device of embodiment 1 or embodiment 2, and the specific structure of the opening and closing device is the same as that of embodiment 1 or embodiment 2, so that the coating die head with the opening and closing device has at least the same technical effect as the above-mentioned opening and closing device, and the specific principle is the same as that of embodiment 1 or embodiment 2, which will not be repeated here.

[0078] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An opening and closing device, characterized in that: The device is used for controlling the opening and closing of a first die head (1) and a second die head (2) of a coating die head, and the opening and closing device comprises: Two groups of opening and closing components are respectively arranged at the two ends of the coating die; each group of the opening and closing components comprises an articulated seat, a first articulated block (3) and a driving member; the articulated seat is connected to the second die (2); one end of the first articulated block (3) is rotatably connected to the articulated seat around the length direction of the coating die, and the other end is connected to the first die (1); the driving member is arranged on the articulated seat, and the output end of the driving member is drivingly connected to the first articulated block (3), suitable for driving the first articulated block (3) to rotate on the articulated seat to drive the first die (1) and the second die (2) to open or close the mold.

2. The opening and closing device according to claim 1, characterized in that: A first limiting block (6) is provided on one side of the hinge seat close to the coating lip of the coating die head; the position of the first limiting block (6) corresponds to the position of the first hinge block (3), and is suitable for abutting and limiting the first hinge block (3) when the first hinge block (3) is rotated to a preset angle.

3. The opening and closing device according to claim 2, characterized in that: A groove (4) is provided on the hinge seat along the lip direction of the coating die head, and one end of the first hinge block (3) is rotatably connected in the groove (4); one end of the first limit block (6) extends into the groove (4), and the first limit block (6) is slidably connected to the hinge seat along the lip direction of the coating die head.

4. The opening and closing device according to claim 3, characterized in that: The first limit block (6) is slidably connected to the hinge seat through an adjustment component; the adjustment component comprises a fixed plate (7) and an adjustment screw (8); the fixed plate (7) is fixedly connected to the hinge seat, and a limit groove (9) is provided on the fixed plate (7) along the lip direction of the coating die head; the adjustment screw (8) passes through the limit groove (9) and is threadedly connected to the first limit block (6), and the adjustment screw (8) is slidably matched with the limit groove (9).

5. The opening and closing device according to claim 3, characterized in that: The articulated seat comprises a second articulated block (11) and a third articulated block (12); the second articulated block (11) is connected to the second die head (2); the third articulated block (12) is connected to a side of the second articulated block (11) facing away from the second die head (2); the second articulated block (11) and the third articulated block (12) enclose the groove (4).

6. The opening and closing device according to claim 3, characterized in that: The driving member is connected to the first hinge block (3) by driving via a driving shaft (5); the driving shaft (5) passes through the hinge seat and the first hinge block (3) along the length direction of the coating die head, and the driving shaft (5) is rotatably connected to the hinge seat; the output end of the driving member is connected to the driving shaft (5) by driving, and is suitable for driving the driving shaft (5) to rotate; the driving shaft (5) is connected to the first hinge block (3) by driving, and is suitable for driving the first hinge block (3) to rotate synchronously.

7. The opening and closing device according to claim 6, characterized in that: The hinge seat is provided with two through holes (17) on both sides of the slot (4), and each through hole (17) is provided with a bearing (10); the drive shaft (5) is sequentially passed through the two bearings (10).

8. The opening and closing device according to claim 6, characterized in that: The driving component comprises a servo motor (13) and a reducer (14); the reducer (14) is arranged on a side of the hinged seat away from the coating die head; the servo motor (13) is connected to the reducer (14), and the output end of the servo motor (13) is drivingly connected to the input end of the reducer (14); the output end of the reducer (14) is key-connected to the driving shaft (5).

9. The opening and closing device according to any one of claims 1 to 8, characterized in that: A second limit block (15) is detachably connected to a side of the hinge seat that is away from the coating lip of the coating die head; the position of the second limit block (15) corresponds to the position of the first hinge block (3), and is suitable for abutting and limiting the first hinge block (3) when the first hinge block (3) rotates to a preset angle.

10. A coating die head, characterized in that: The invention comprises a first die head (1), a second die head (2) and an opening and closing device as claimed in any one of claims 1 to 9; the first die head (1) is arranged on the top of the second die head (2); two groups of opening and closing components of the opening and closing device are respectively arranged at the two ends of the second die head (2), and are suitable for driving the first die head (1) and the second die head (2) to open or close the mold through the opening and closing components.

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