A lifting door panel with strong sealing

Abstract

The utility model discloses a lifting door panel with strong sealing, comprising: a door cover; a lifting sealing door that can move up and down, the lifting sealing door is arranged at the feeding port of the door cover and forms a seal for the inlet and outlet of the oven; two door guide rails, respectively vertically fixed on both sides of the inner side of the door cover, the door guide rails are provided with guide grooves, the lower ends of the guide grooves are bent downward toward the side close to the inner side of the door cover, the two sides of the lifting sealing door are rotatably connected with guide wheels, and the guide wheels are slidably connected with the guide grooves; a feeding width adjustment component, the feeding width adjustment component is arranged at the feeding port of the door cover and is located on the outer side of the lifting sealing door. In the utility model, the lifting seal can move downward along the track of the guide groove, and when it moves to the curved section of the guide groove, the lifting sealing door will move obliquely downward and close to the inlet and outlet of the oven to strengthen the sealing of the inlet and outlet, and the greater the force of the lifting sealing door moving downward, the stronger the sealing.

Description

Technical Field

[0001] The utility model relates to the technical field of ovens, in particular to a lifting door panel with strong sealing. Background Art

[0002] Industrial ovens are made of angle steel and thin steel plates. In addition, the box is strengthened and the outer surface is painted. The scope of application of industrial ovens is very wide. The oven has a feed inlet and a discharge inlet. The PCB board needs to be heated and baked in the oven to detect the working conditions of various components of the PCB board in a high temperature environment.

[0003] The oven has a conveyor line inside. The PCB board will enter the oven from the feed port, and then be tested under high temperature. After the test is completed, it will be discharged from the discharge port through the conveyor line. This places high demands on the sealing of the feed port and discharge port of the oven. The door panels of general ovens can be opened by pulling them out to both sides or opening them outwards. Both of these methods have certain defects. The first opening method has high requirements on the sealing of the joint between the two door panels, and the sealing of the test chamber inside the oven is not enough. The second opening method takes up more space and is not convenient for feeding and discharging materials. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems, and a lifting door panel with strong sealing is designed to solve the problems of poor sealing of the door panel of the oven, inconvenience in feeding and discharging of materials, etc.

[0005] To achieve the above purpose, the technical solution of the utility model is a lifting door panel with strong sealing, comprising:

[0006] A door cover, wherein the lower side of the door cover has a feed opening;

[0007] A lifting sealing door that can move up and down, the lifting sealing door is arranged at the feeding port of the door cover and forms a seal for the inlet and outlet of the oven;

[0008] Two door guide rails are respectively vertically fixed on both sides of the inner side of the door cover, and the door guide rails are provided with guide grooves, and the lower ends of the guide grooves are bent downward toward the side close to the inner side of the door cover, and the two sides of the lifting sealing door are rotatably connected with guide wheels, and the guide wheels are slidably connected with the guide grooves;

[0009] A feed width adjustment component is arranged at the feed port of the door cover and is located outside the lifting sealing door, and is used to limit the size of the feed product.

[0010] Preferably, a cylinder fixing adjustment seat and a lifting cylinder are provided above the lifting sealing door, an output end of the lifting cylinder is hinged to the lifting sealing door, and the other end is hinged to the cylinder fixing adjustment seat.

[0011] Preferably, a first fixing plate and a second fixing plate are respectively provided on the upper and lower sides of the door guide rail, and bolt holes are provided on the first fixing plate and the second fixing plate, wherein the second fixing plate is arranged at the position of the curved section of the guide groove to prevent the guide wheel from sliding out of the guide groove.

[0012] Preferably, a mounting plate is provided at the location of the feed opening on the door cover, and the feed width adjustment assembly is mounted on the mounting plate.

[0013] Preferably, the feed width adjustment assembly includes an adjusting motor, a screw connected to the output end of the adjusting motor, a sliding base and a second limit plate arranged on a mounting plate, and a first limit plate horizontally slidably connected to the sliding base, the two ends of the screw are respectively rotatably connected to the two ends of the sliding base, the first limit plate is transmission-connected to the screw, and the second limit plate is located opposite to the first limit plate.

[0014] Preferably, a protective cover is provided on the outer side of the door cover, a motor fixing seat is provided on the inner side of the protective cover, the adjusting motor is mounted on the motor fixing seat, and a junction box is provided on the outer side of the protective cover.

[0015] Preferably, a slide rail is provided on the sliding base, a slider is slidably connected to the slide rail, the first limit plate is fixedly installed on the slider, a light baffle is provided on the side of the slider, the light baffle extends downward through the mounting plate, a profile plate is provided below the mounting plate, a photoelectric sensor cooperating with the light baffle is provided on the profile plate, and the photoelectric sensor is provided on the moving path of the slider.

[0016] Preferably, a sealing ring is circumferentially arranged on the inner side of the lifting sealing door.

[0017] Compared with the prior art, the beneficial effects are:

[0018] In the utility model, the lifting seal can move downward along the track of the guide groove. When it moves to the curved section of the guide groove, the lifting seal door will move obliquely downward and close to the inlet and outlet of the oven, so as to enhance the sealing of the inlet and outlet. The greater the force applied to the lifting seal door to move downward, the stronger the sealing. At the same time, a feed width adjustment component is provided at the feed inlet position of the door cover. The width in the direction perpendicular to the incoming direction can be adjusted by the feed width adjustment component according to the different widths of the PCB boards, so as to limit the width of the feed channel of the PCB boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the lifting door panel in the utility model;

[0020] Figure 2It is a structural schematic diagram of the lifting door panel in the utility model from another perspective;

[0021] Figure 3 It is a schematic diagram of the installation structure of the lifting and sealing door;

[0022] Figure 4 It is a schematic diagram of the installation structure of the lifting sealing door from another perspective;

[0023] Figure 5 It is a schematic diagram of the structure of the door guide;

[0024] Figure 6 It is a structural schematic diagram of the feed width adjustment component.

[0025] In the figure, 1, door cover; 2, door guide; 201, guide groove; 3, lifting sealing door; 4, protective cover; 5, junction box; 6, feed width adjustment assembly; 61, adjustment motor; 62, screw rod; 63, sliding base; 64, first limit plate; 65, second limit plate; 7, cylinder fixed adjustment seat; 8, lifting cylinder; 9, first fixed plate; 10, second fixed plate; 11, profile plate; 12, photoelectric sensor; 13, light shielding plate; 14, motor fixed seat; 15, sealing ring; 16, guide wheel; 17, fixing piece; 18, mounting plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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.

[0027] like Figure 1-Figure 4 As shown, the preferred embodiment of the utility model proposes a lifting door panel with strong sealing, which is used to be installed at the inlet and outlet of the oven. The lifting door panel mainly includes a door cover 1, a lifting sealing door 3, a feed width adjustment component 6 and other components. It is a rectangular structure, and a feed port is provided on the lower side of the front of the door cover 1 for the entry and exit of PCB boards. The feed width adjustment component 6 is arranged at the feed port to limit the size of the PCB board, and the PCB board that meets the required size can enter the oven. The lifting sealing door 3 can move up and down to seal the inlet and outlet of the test box in the oven.

[0028] like Figure 2 , Figure 5As shown, door guide rails 2 are provided on both sides of the inner side of the door cover 1, and the door guide rails 2 are vertically fixed on the door cover 1. Two guide grooves 201 are provided on the opposite sides of the two door guide rails 2, and the two guide grooves 201 are respectively located on the upper and lower sides of the door guide rails 2. The shape of the guide groove 201 is similar to a J shape, and the lower end of the guide groove 201 is bent downward, and the bending direction is the sealing direction of the lifting sealing door 3 (that is, the side close to the inner side of the door cover 1).

[0029] refer to Figure 4 A fixing member 17 is provided on each of the top sides of the lifting sealing door 3, and a guide wheel 16 is rotatably connected to the fixing member 17. Meanwhile, a guide wheel 16 is provided on each of the lower sides of the lifting sealing door 3, and the four guide wheels 16 are respectively slidably connected to the four guide grooves 201 on the two door guide rails 2. When the lifting sealing door 3 moves up and down, the guide wheel 16 can slide along the track of the guide groove 201, which helps to improve the stability of the lifting door when it moves.

[0030] At the same time, when the guide wheel 16 slides to the curved section of the guide groove 201, the guide wheel 16 continues to slide downward, which can force the lifting and sealing door 3 to move to the side of the oven, so that the lifting and sealing door 3 is firmly attached to the inlet and outlet of the test box in the oven, which helps to enhance the sealing of the test box.

[0031] The lifting sealing door 3 is a hollow structure with a vacuum in the middle to reduce the heat dissipation in the oven. A sealing ring 15 is arranged along the circumference on the side of the lifting sealing door 3 close to the test box to strengthen the sealing between the lifting sealing door 3 and the test box inlet and outlet.

[0032] like Figure 3 As shown, a cylinder fixed adjustment seat 7 and a lifting cylinder 8 are provided above the lifting sealing door 3, wherein the cylinder fixed adjustment seat 7 will be installed and fixed on the oven, and the output end of the lifting cylinder 8 is hinged to the lifting sealing door 3 below, and the other end is hinged to the cylinder fixed adjustment seat 7 above. The lifting sealing door 3 is controlled by the lifting cylinder 8 to move up and down along the trajectory of the guide groove 201, and the lifting sealing door 3 is forced to be close to the inlet and outlet of the test box.

[0033] refer to Figure 4 A first fixing plate 9 and a second fixing plate 10 are respectively arranged on the upper and lower sides of the two door guide rails 2 near the oven. The first fixing plate 9 and the second fixing plate 10 are fixed to the door guide rail 2 by bolts, and a plurality of bolt holes are also arranged on the first fixing plate 9 and the second fixing plate 10 for fixing the lifting door panel to the oven as a whole. The second fixing plate 10 is located at the curved section of the guide groove 201, and is used to block the guide groove 201 to prevent the guide wheel 16 from sliding out of the guide groove 201.

[0034] like Figure 1As shown, a mounting plate 18 is provided on the lower side of the door cover 1 where the feeding port is located, for mounting the feeding width adjustment assembly 6 .

[0035] refer to Figure 6 The feed width adjustment assembly 6 is composed of an adjustment motor 61, a screw rod 62, a first limit plate 64, a second limit plate 65, and a sliding base 63. The sliding base 63 is fixed on the mounting plate 18. A slide rail is provided on the sliding base 63. A slider is slidably connected to the slide rail. The first limit plate 64 is vertically fixed on the slider. The second limit plate 65 is fixed on the mounting plate 18 and is opposite to the first limit plate 64. The screw rod 62 passes through the sliding base 63 horizontally, and the two ends of the screw rod 62 are respectively connected to the two ends of the sliding base 63 for rotation. The adjustment motor 61 is located outside the door cover 1. One end of the screw rod 62 passes through the door cover 1 and is connected to the output end of the adjustment motor 61 through a coupling. The first limit plate 64 is connected to the screw rod 62 for transmission. The rotation of the adjustment motor 61 can drive the screw rod 62 to rotate, thereby driving the first limit plate 64 to slide along the slide rail to adjust the distance between the first limit plate 64 and the second limit plate 65.

[0036] A roller is provided on the upper side of the opposite side of the first limit plate 64 and the second limit plate 65 to play a guiding role. According to the different sizes of the PCB board, the distance between the first limit plate 64 and the second limit plate 65 is adjusted to control the material feeding.

[0037] A fixing plate is provided below the mounting plate 18, on which two parallel profile plates 11 are provided, and the profile plates 11 have a slide groove. A photoelectric sensor 12 is provided on each profile plate 11, and the two photoelectric sensors 12 are staggered and respectively located at the two ends of the profile groove. The photoelectric sensors 12 can slide along the slide groove on the profile groove plate to adjust the distance between the two photoelectric sensors 12.

[0038] A light shielding plate 13 is disposed on each side of the slider. The two light shielding plates 13 extend downward. When the slider slides, the two light shielding plates 13 can pass through between the two photoelectric sensors 12 respectively to detect the moving position of the slider.

[0039] like Figure 2 As shown, a shield 4 is provided on the outside of the door cover 1 to protect the adjusting motor 61. A motor fixing seat 14 is provided on the inside of the shield 4 to install and fix the adjusting motor 61. A junction box 5 is provided on the outside of the shield 4, which is connected to the inside of the shield 4 and is used to store the wiring of the adjusting motor 61.

[0040] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. A lifting door panel with strong sealing, used for installation at the inlet and outlet of an oven, characterized in that: include: A door cover (1), wherein the lower side of the door cover (1) is provided with a feed opening; A lifting sealing door (3) that can move up and down, the lifting sealing door (3) being arranged at the feed inlet of the door cover (1) and forming a seal for the inlet and outlet of the oven; Two door guide rails (2) are respectively vertically fixed on two sides of the inner side of the door cover (1); a guide groove (201) is provided on the door guide rail (2); the lower end of the guide groove (201) is bent downward toward a side close to the inner side of the door cover (1); guide wheels (16) are rotatably connected to the two sides of the lifting sealing door (3); and the guide wheels (16) are slidably connected to the guide groove (201); A feed width adjustment component (6), which is arranged at the feed port of the door cover (1) and located outside the lifting sealing door (3) and is used to limit the size of the feed product.

2. A lifting door panel with strong sealing according to claim 1, characterized in that: A cylinder fixing adjustment seat (7) and a lifting cylinder (8) are arranged above the lifting sealing door (3); an output end of the lifting cylinder (8) is hinged to the lifting sealing door (3), and the other end is hinged to the cylinder fixing adjustment seat (7).

3. A lifting door panel with strong sealing according to claim 1, characterized in that: A first fixing plate (9) and a second fixing plate (10) are respectively arranged on the upper and lower sides of the door guide rail (2), and bolt holes are arranged on the first fixing plate (9) and the second fixing plate (10), wherein the second fixing plate (10) is arranged at the position of the curved section of the guide groove (201) to prevent the guide wheel (16) from sliding out of the guide groove (201).

4. A lifting door panel with strong sealing according to claim 1, characterized in that: A mounting plate (18) is provided at the location of the feed opening on the door cover (1), and the feed width adjustment component (6) is mounted on the mounting plate (18).

5. A lifting door panel with strong sealing according to claim 4, characterized in that: The feed width adjustment assembly (6) comprises an adjustment motor (61), a screw rod (62) connected to the output end of the adjustment motor (61), a sliding base (63) and a second limit plate (65) arranged on a mounting plate (18), and a first limit plate (64) horizontally slidably connected to the sliding base (63), the two ends of the screw rod (62) are respectively rotatably connected to the two ends of the sliding base (63), the first limit plate (64) and the screw rod (62) are in transmission connection, and the second limit plate (65) is located opposite to the first limit plate (64).

6. A lifting door panel with strong sealing according to claim 5, characterized in that: A protective cover (4) is arranged on the outside of the door cover (1), a motor fixing seat (14) is arranged on the inside of the protective cover (4), the regulating motor (61) is mounted on the motor fixing seat (14), and a junction box (5) is arranged on the outside of the protective cover (4).

7. A lifting door panel with strong sealing according to claim 5, characterized in that: The sliding base (63) is provided with a slide rail, and a slider is slidably connected to the slide rail. The first limit plate (64) is fixedly mounted on the slider. A light blocking plate (13) is provided on the side of the slider. The light blocking plate (13) extends downward through the mounting plate (18). A profile plate (11) is provided below the mounting plate (18). A photoelectric sensor (12) matching the light blocking plate (13) is provided on the profile plate (11). The photoelectric sensor (12) is arranged on the moving path of the slider.

8. A lifting door panel with strong sealing according to claim 1, characterized in that: A sealing ring (15) is arranged along the circumferential direction on the inner side of the lifting sealing door (3).

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