Gate lifting device and drying oven
By installing a proximity sensor in the gate lifting device to detect the object to be detected on the conveyor device and drive the gate to rise in time, the problem of large control errors in the lifting gate lifting control in the existing technology is solved, and a more accurate judgment of the gate opening moment is achieved. , to avoid collision and damage between the gate and the bottle block.
Patent Information
- Application Number
- CN202420862592.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The existing lifting control method of lifting gates has a large error, and it is impossible to ensure that the gate rises when the bottle block and bottle push blocks arrive in time, which may cause collision and damage to the gate and bottle blocks.
A proximity sensor is installed in the gate lifting device. The proximity sensor detects that the object to be detected on the conveyor reaches the lifting gate, and drives the gate to rise in time.
Through the actual physical judgment of the proximity sensor, the opening moment of the gate can be more accurately determined to avoid collision and damage caused by the gate not being raised in time.
Smart Images
Figure CN222378743U_ABST
Abstract
Description
Technical Field
[0001] The utility model embodiment relates to the technical field of automated production equipment, and in particular to a gate lifting device and an oven. Background Art
[0002] The existing tunnel oven includes a preheating module, a heating module and a cooling module connected in sequence. A mesh belt conveyor is provided in the tunnel oven, through which the bottles can be conveyed to pass through the preheating module, the heating module and the cooling module in sequence. The hot air from the preheating module can heat the cleaned bottles to reduce the temperature difference with the heating module and prevent the bottles from bursting; the hot air from the heating module has a higher temperature than the preheating module, and can sterilize and dry the bottles at high temperature; the cold air from the cooling module can cool the bottles for subsequent filling.
[0003] A lifting gate is usually set between the preheating module and the heating module, and between the heating module and the cooling module. When the gate is raised, the mesh belt conveyor can transfer the bottle blocking block and the bottle pushing block from one module to an adjacent module. The lifting of the existing lifting gate is completely dependent on the calculated mesh belt displacement. The lifting control method of this lifting gate has a large error and cannot guarantee that the gate will be raised in time when the bottle blocking block and the bottle pushing block arrive. There may be risks such as collision and damage between the bottle blocking block and the bottle pushing block and the gate. Utility Model Content
[0004] The purpose of the embodiments of the utility model is to provide a gate lifting device and an oven, aiming to solve the problem of large errors in the lifting control method of the existing lifting gate.
[0005] In order to solve the above technical problems, the embodiment of the utility model provides a gate lifting device, comprising:
[0006] A frame, wherein a spacing structure is installed on the frame, and a conveying channel is provided on the spacing structure corresponding to the conveying device, so that the object to be detected on the conveying device can pass through the spacing structure from the conveying channel;
[0007] A lifting gate, the lifting gate is installed on the frame, and the lifting gate is used to open and close the conveying channel;
[0008] A proximity sensor is installed on the frame, the proximity sensor is located at the entrance side of the lifting gate, the proximity sensor is used to detect the object to be detected on the conveying device, and the proximity sensor is electrically connected to the lifting gate to drive the lifting gate to open the conveying channel according to the proximity sensor.
[0009] A proximity sensor is provided on the entrance side of the lifting gate of the utility model. When the proximity sensor detects that the object to be detected on the conveying device arrives in front of the lifting gate, the lifting gate can be driven to rise in time. The proximity sensor can realize actual physical judgment. The actual installation position of the proximity sensor is short from the lifting gate, which is different from the existing logical judgment and can better determine the opening time of the lifting gate.
[0010] Preferably, the proximity sensor is a proximity switch or a through-beam optical fiber sensor.
[0011] Preferably, the proximity sensors are installed on both sides of the conveying channel in the width direction of the conveying device.
[0012] Preferably, the proximity sensors are arranged along the width direction of the conveying device.
[0013] Preferably, the proximity sensor is arranged close to the lifting gate.
[0014] Preferably, a mounting seat is installed on the frame, and the proximity sensor is installed on the mounting seat, wherein:
[0015] The mounting seat is mounted on the frame in a manner that it can be adjusted along the conveying direction of the conveying device; and / or,
[0016] The proximity sensor is mounted on the mounting seat in a manner that it can be adjusted along the lifting direction of the lifting gate.
[0017] Preferably, the mounting seat is fixedly mounted on the frame via a screw connection, and a first waist-shaped hole is provided on the mounting seat for the screw connection to pass through, and the first waist-shaped hole is extended along the conveying direction of the conveying device.
[0018] Preferably, a plurality of the first waist-shaped holes are arranged on the mounting seat at intervals along the conveying direction of the conveying device.
[0019] Preferably, a second waist-shaped hole for the proximity sensor to pass through is provided on the mounting seat, the second waist-shaped hole is extended along the lifting direction of the lifting gate, and the proximity sensor is fixedly installed at the second waist-shaped hole by a locking nut.
[0020] Preferably, the mounting seat includes a first plate portion and a second plate portion, the first plate portion is fitted on the frame, the second plate portion is bent and extended from one end of the first plate portion close to the conveying device, and the proximity sensor is mounted on the second plate portion.
[0021] In order to achieve the above object, the utility model also provides an oven, comprising:
[0022] A box body, wherein a conveying device is installed in the box body;
[0023] The gate lifting device is the gate lifting device mentioned above, and the gate lifting device is installed in the box body corresponding to the conveying device.
[0024] Preferably, a preheating module, a heating module and a cooling module which are connected to each other in sequence are formed in the box body, and the gate lifting device is provided between the preheating module and the heating module, between the heating module and the cooling module, and at the outlet of the cooling module. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0026] Figure 1 A schematic diagram of the structure of an oven provided by an embodiment of the utility model;
[0027] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0028] Figure 3 for Figure 1 The structural diagram of the proximity sensor in the middle;
[0029] Figure 4 for Figure 1 A schematic diagram of the structure of another proximity sensor.
[0030] Description of the figures of the utility model:
[0031] Oven 1000, gate lifting device 100, frame 1, spacing structure 2, conveying channel 21, lifting gate 3, proximity sensor 4, mounting seat 5, first waist-shaped hole 51, second waist-shaped hole 52, first plate portion 53, second plate portion 54, screw connection 6, flat washer 61, spring washer 62, locking nut 7, conveying device 200, preheating module 300, heating module 400, cooling module 500.
[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0033] 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. Obviously, the described embodiments are only 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.
[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0036] The utility model provides a gate lifting device, which can be used in automated production equipment such as ovens. The following will take the gate lifting device used in an oven as an example for introduction. Figures 1 to 4 A preferred embodiment of the gate lifting device provided by the utility model used in an oven is shown.
[0037] See also Figures 1 to 3 In this embodiment, the gate lifting device 100 includes a frame 1, a lifting gate 3 and a proximity sensor 4. A spacing structure 2 is installed on the frame 1. A conveying channel 21 is provided on the spacing structure 2 corresponding to the conveying device 200, so that the object to be detected on the conveying device 200 can pass through the spacing structure 2 from the conveying channel 21; the lifting gate 3 is installed on the frame 1, and the lifting gate 3 is used to open and close the conveying channel 21; the proximity sensor 4 is installed on the frame 1, and the proximity sensor 4 is located at the entrance side of the lifting gate 3. The proximity sensor 4 is used to detect the object to be detected on the conveying device 200, and the proximity sensor 4 is electrically connected to the lifting gate 3 to drive the lifting gate 3 to open the conveying channel 21 according to the proximity sensor 4.
[0038] Specifically, the oven 1000 includes a preheating module 300, a heating module 400 and a cooling module 500 which are connected in sequence. A conveyor 200 is provided in the box of the oven 1000. The conveyor 200 is generally a mesh belt conveyor. The conveyor 200 can convey the bottle body to pass through the preheating module 300, the heating module 400 and the cooling module 500 in sequence. The following will take the conveyor 200 as an example of a mesh belt conveyor.
[0039] The gate lifting device 100 may be disposed between the preheating module 300 and the heating module 400; the gate lifting device 100 may be disposed between the heating module 400 and the cooling module 500; or the gate lifting device 100 may be disposed at the exit of the cooling module 500. The following description will be made by taking the gate lifting device 100 disposed between the preheating module 300 and the heating module 400 as an example.
[0040] The frame 1 is usually arranged on the box body of the oven 1000, and the partition structure 2 on the frame 1 is arranged at intervals between the preheating module 300 and the heating module 400. The conveying channel 21 passes through the partition structure 2 in the conveying direction of the conveying device 200. Objects placed on the mesh belt of the conveying device 200 (such as bottles, bottle blocking blocks and bottle pushing blocks, etc.) can pass through the partition structure 2 from the conveying channel 21 and enter the heating module 400 from the preheating module 300.
[0041] The spacing structure 2 may be a partition, etc., and the specific arrangement of the transmission channel 21 on the spacing structure 2 may not be particularly limited. Figures 1 to 3 In this embodiment, an opening is provided on the spacing structure 2 for the mesh belt of the conveying device 200 to pass through, and the opening is located on the side of the mesh belt close to the object thereon to form a conveying channel 21.
[0042] For example, the conveying direction of the conveying device 200 is usually horizontal, and an opening is provided on the spacing structure 2 for the mesh belt of the conveying device 200 to pass through. The opening penetrates the spacing structure 2 in the conveying direction of the conveying device 200, and the part of the opening located on the upper side of the mesh belt forms a conveying channel 21, that is, the conveying channel 21 is located on the upper side of the mesh belt of the conveying device 200.
[0043] The lifting gate 3 generally includes a gate (not shown in the figure) and a gate driving mechanism (not shown in the figure). The gate driving mechanism is coupled to the gate power so that the gate can be driven to lift through the gate driving mechanism. The lifting direction of the gate is generally up and down. When the gate driving mechanism drives the gate to descend, the gate closes the transmission channel 21 on the spacing structure 2, and a barrier is formed between the preheating module 300 and the heating module 400. Objects placed on the mesh belt cannot pass through the spacing structure 2 from the transmission channel 21. When the gate driving mechanism drives the gate to rise, the gate opens the transmission channel 21 on the spacing structure 2, and the preheating module 300 and the heating module 400 are connected. Objects placed on the mesh belt can pass through the spacing structure 2 from the transmission channel 21 and enter the heating module 400 from the preheating module 300. Among them, the gate driving mechanism can be a gear rack transmission mechanism, etc.
[0044] The proximity sensor 4 is located at the entrance side of the lifting gate 3, that is, the proximity sensor 4 is located in the preheating module 300. The proximity sensor 4 is used to detect the objects to be detected on the conveying device 200. The objects to be detected can be bottles, bottle blocking blocks and bottle pushing blocks placed on the mesh belt. The following will take the objects to be detected as bottle blocks and bottle pushing blocks as examples for introduction.
[0045] During the operation of the oven 1000, the proximity sensor 4 can accurately detect the arrival of the bottle blocking block and the bottle pushing block before the lifting gate 3, and timely feedback the movement position of the bottle blocking block and the bottle pushing block on the mesh belt. Since the proximity sensor 4 is electrically connected to the lifting gate 3, the proximity sensor 4 can transmit the detected signal to the lifting gate 3, and the gate drive mechanism starts to move to raise the gate, so that the medicine bottle, the bottle blocking block or the bottle pushing block can pass through the lifting gate 3 in time, avoiding the problem of collision and damage caused by the untimely lifting of the lifting gate 3. The proximity sensor 4 can realize actual physical judgment. The actual installation position of the proximity sensor 4 is short from the lifting gate 3, which is different from the existing logical judgment and can better determine the opening time of the lifting gate 3.
[0046] A proximity sensor 4 is provided on the entrance side of the lifting gate 3 of the utility model. When the object to be detected on the conveying device 200 arrives in front of the lifting gate 3, the lifting gate 3 can be driven to rise in time by the proximity sensor 4. The proximity sensor 4 can realize actual physical judgment. The actual installation position of the proximity sensor 4 is short from the lifting gate 3, which is different from the existing logical judgment and can better determine the opening time of the lifting gate 3.
[0047] In order to prevent the high temperature in the heating module 400 from damaging the proximity sensor 4, the proximity sensor 4 needs to be able to withstand a higher temperature. Figure 1 , Figure 3 and Figure 4In this embodiment, the proximity sensor 4 is a proximity switch or a through-beam optical fiber sensor.
[0048] Specifically, the proximity switch can withstand temperatures of 120 degrees, while the through-beam fiber optic sensor can withstand temperatures of 350 degrees.
[0049] See also Figure 1 and Figure 3 When the gate lifting device 100 is arranged between the preheating module 300 and the heating module 400, the proximity sensor 4 is located in the preheating module 300. The proximity sensor 4 is a proximity switch or a corresponding optical fiber sensor, which can prevent the high temperature overflow of the heating module 400 from damaging the proximity sensor 4.
[0050] See also Figure 1 and Figure 4 When the gate lifting device 100 is arranged between the heating module 400 and the cooling module 500, the proximity sensor 4 is located in the heating module 400. The proximity sensor 4 is a counter-radiation optical fiber sensor, which can prevent the high temperature of heating and sterilization in the heating module 400 from damaging the proximity sensor 4.
[0051] See also Figure 1 and Figure 4 When the gate lifting device 100 is set at the exit of the cooling module 500, the proximity sensor 4 is located in the cooling module 500. The proximity sensor 4 is a counter-radiation optical fiber sensor, which can prevent the high temperature of heating and sterilization in the cooling module 500 from damaging the proximity sensor 4.
[0052] According to the different positions of the proximity sensor 4, two sensors, a proximity switch and a through-beam optical fiber sensor, are selected, so that the temperature that the proximity sensor 4 can withstand is much higher than the actual temperature in the production process, ensuring that the proximity sensor 4 can still work normally under extreme conditions. After the lifting gate 3 is raised, the high temperature overflow in the heating module 400 will not damage the proximity sensor 4, thereby causing the risk of the lifting gate 3 losing control.
[0053] Optionally, see Figure 1 and Figure 2 In this embodiment, the proximity sensor 4 is arranged close to the lifting gate 3. The actual installation position of the proximity sensor 4 is short from the lifting gate 3, which can better determine the opening time of the lifting gate 3.
[0054] The proximity sensor 4 is usually arranged horizontally. Figures 1 to 3 In this embodiment, the proximity sensors 4 are arranged along the width direction of the conveying device 200 .
[0055] Optionally, see Figures 1 to 3In this embodiment, the proximity sensors 4 are installed on both sides of the conveying channel 21 in the width direction of the conveying device 200 .
[0056] Specifically, when the proximity sensor 4 is a through-beam optical fiber sensor, the transmitter and the receiver of the through-beam optical fiber sensor are respectively installed on both sides of the conveying device 200 in the width direction. When the proximity sensor 4 is a proximity switch, the proximity sensor 4 can be installed only on one side of the conveying device 200, or can be installed on both sides of the conveying device 200.
[0057] The proximity sensor 4 is mounted on the rack 1. Optionally, see Figures 2 to 4 In this embodiment, a mounting base 5 is mounted on the frame 1, and the proximity sensor 4 is mounted on the mounting base 5. The proximity sensor 4 is mounted on the frame 1 through the mounting base 5. Compared with directly setting a fixing structure of the proximity sensor 4 on the frame 1, it is more convenient to set a fixing structure of the proximity sensor 4 on the mounting base 5.
[0058] For further information, see Figures 2 to 4 In this embodiment, the mounting base 5 is mounted on the frame 1 in a manner that can be adjusted along the conveying direction of the conveying device 200. By adjusting the mounting position of the mounting base 5 on the frame 1 along the conveying direction of the conveying device 200, the distance between the proximity sensor 4 and the lifting gate 3 can be adjusted, so that a suitable fixing position of the proximity sensor 4 can be found according to actual conditions.
[0059] The specific installation method of the mounting base 5 on the rack 1 can be set according to the actual situation. Figure 3 and Figure 4 In this embodiment, the mounting base 5 is fixedly mounted on the frame 1 by means of a screw connection 6 , and a first waist-shaped hole 51 is provided on the mounting base 5 for the screw connection 6 to pass through, and the first waist-shaped hole 51 is extended along the conveying direction of the conveying device 200 .
[0060] Specifically, the mounting base 5 is installed on the frame 1 through the screw connection 6, and a first waist-shaped hole 51 is provided on the mounting base 5 corresponding to the screw connection 6. Through the cooperation between the first waist-shaped hole 51 and the screw connection 6, the installation position of the mounting base 5 on the frame 1 can be adjusted along the conveying direction of the conveying device 200, thereby realizing the distance between the proximity sensor 4 and the lifting gate 3.
[0061] The screw connection member 6 may be a screw or the like, and a flat washer 61, a spring washer 62, etc. may also be installed on the screw connection member 6. For example, refer to Figure 3 and Figure 4 In this embodiment, the screw connection member 6 is an M5 screw, and an M5 flat washer and an M5 spring washer are installed on the screw connection member 6.
[0062] For further information, see Figure 3 and Figure 4 In this embodiment, a plurality of first waist-shaped holes 51 are arranged on the mounting seat 5 at intervals along the conveying direction of the conveying device 200. By selectively installing the screw connector 6 at different first waist-shaped holes 51, the mounting position of the mounting seat 5 on the frame 1 can also be adjusted along the conveying direction of the conveying device 200.
[0063] The detection end of the proximity sensor 4 is located on the upper side of the conveying device 200. Figures 2 to 4 In this embodiment, the proximity sensor 4 is mounted on the mounting seat 5 in a manner that can be adjusted along the lifting direction of the lifting gate 3. Since the mounting position of the proximity sensor 4 on the mounting seat 5 can be adjusted up and down, the proximity sensor 4 can be adjusted to a suitable height position according to actual conditions, so that the proximity sensor 4 can accurately detect the bottle blocking block and the bottle pushing block on the mesh belt.
[0064] The specific installation method of the proximity sensor 4 on the mounting base 5 can be set according to the actual situation. Figure 3 and Figure 4 In this embodiment, a second waist-shaped hole 52 for the proximity sensor 4 to pass through is provided on the mounting seat 5. The second waist-shaped hole 52 is extended along the lifting direction of the lifting gate 3. The proximity sensor 4 is fixedly installed at the second waist-shaped hole 52 by a locking nut 7.
[0065] Specifically, the detection end of the proximity sensor 4 is inserted into the second waist-shaped hole 52, and after the height of the proximity sensor 4 is adjusted up and down along the second waist-shaped hole 52, the proximity sensor 4 on the mounting base 5 is locked and fixed by the locking nut 7. Through the cooperation between the second waist-shaped hole 52 and the detection end of the proximity sensor 4, the installation position of the proximity sensor 4 on the mounting base 5 can be adjusted up and down, so that the proximity sensor 4 can be adjusted to a suitable height according to actual conditions.
[0066] The specific style of the mounting base 5 may not be specifically limited. Figure 3 and Figure 4 In this embodiment, the mounting base 5 includes a first plate portion 53 and a second plate portion 54. The first plate portion 53 is fitted on the frame 1, and the second plate portion 54 is bent and extended from one end of the first plate portion 53 close to the conveying device 200. The proximity sensor 4 is installed on the second plate portion 54.
[0067] Specifically, the mounting seat 5 is L-shaped and has a relatively simple structure. A first waist-shaped hole 51 is provided on the first plate portion 53, and the first waist-shaped hole 51 passes through the first plate portion 53 from top to bottom. A second waist-shaped hole 52 is provided on the second plate portion 54, and the second waist-shaped hole 52 passes through the second plate portion 54 in the width direction of the conveying device 200. Both the first plate portion 53 and the second plate portion 54 are thin plates with rectangular waist-shaped holes.
[0068] The utility model also provides an oven, which can be a tunnel oven, etc. Figures 1 to 4 A preferred embodiment of the gate lifting device provided by the utility model is shown. Figure 1 In this embodiment, the oven 1000 includes a gate lifting device 100. Since the gate lifting device 100 adopts the technical solution of the above embodiment, it has the beneficial effects brought by the technical solution of the above embodiment.
[0069] Specifically, the oven 1000 includes a box body, a conveying device 200 is installed in the box body, a gate lifting device 100 is installed in the box body corresponding to the conveying device 200, and a frame 1 of the gate lifting device 100 is arranged on the box body.
[0070] Optionally, see Figure 1 In this embodiment, a preheating module 300, a heating module 400 and a cooling module 500 which are connected in sequence are formed in the box body, and a gate lifting device 100 is provided between the preheating module 300 and the heating module 400, between the heating module 400 and the cooling module 500, and at the exit of the cooling module 500.
[0071] Specifically, see Figure 1 and Figure 3 When the gate lifting device 100 is disposed between the preheating module 300 and the heating module 400, the proximity sensor 4 is located in the preheating module 300. The proximity sensor 4 is a proximity switch or a through-beam optical fiber sensor, which can prevent the high temperature overflow of the heating module 400 from damaging the proximity sensor 4. Figure 1 and Figure 4 When the gate lifting device 100 is disposed between the heating module 400 and the cooling module 500, the proximity sensor 4 is located in the heating module 400. The proximity sensor 4 is a through-beam optical fiber sensor, which can prevent the high temperature of heating and sterilization in the heating module 400 from damaging the proximity sensor 4. Figure 1 and Figure 4When the gate lifting device 100 is set at the exit of the cooling module 500, the proximity sensor 4 is located in the cooling module 500. The proximity sensor 4 is a through-beam optical fiber sensor, which can prevent the high temperature of heating and sterilization in the cooling module 500 from damaging the proximity sensor 4. According to the different positions of the proximity sensor 4, two sensors, the proximity switch and the through-beam optical fiber sensor, are selected, so that the temperature that the proximity sensor 4 can withstand is much higher than the actual temperature in the production process, ensuring that the proximity sensor 4 can still work normally under extreme conditions. After the lifting gate 3 is raised, the high temperature overflow in the heating module 400 will not damage the proximity sensor 4, thereby causing the risk of the lifting gate 3 losing control.
[0072] Optionally, in this embodiment, the oven 1000 further includes a controller (not shown in the figure), and the controller is electrically connected to the lifting gate 3 and the proximity sensor 4.
[0073] Specifically, the controller can be a PLC, etc. When the bottle blocking block and the bottle pushing block reach the detection position (i.e., the installation position of the proximity sensor 4), the proximity sensor 4 sends a signal to the controller. The controller receives the signal and calculates the time T required for the product to reach the lifting gate 3. The height that the lifting gate 3 needs to be raised can be determined by reading the current product information. At this time, the relative position of the current position and the target position of the lifting gate 3 can be calculated. During the operation of the mesh belt, the rising speed is adjusted according to the time T to make the lifting gate 3 rise slowly, and the internal and external pressure differences are paid attention to. The speed of the lifting gate 3 is adjusted in real time according to the pressure difference changes and the mesh belt speed. Before the product reaches the lifting gate 3, the lifting gate 3 needs to reach the target position to ensure the safe passage of the product. The proximity sensor 4 can realize actual physical judgment. The actual installation position of the proximity sensor 4 is short from the lifting gate 3. Different from the conventional logical judgment, it can better determine the opening time of the lifting gate 3, which is conducive to the maintenance of the pressure difference and other misjudgments in unconventional situations.
[0074] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A gate lifting device, characterized in that: include: A frame, wherein a spacing structure is arranged on the frame, and a conveying channel is arranged on the spacing structure corresponding to the conveying device, so that the object to be detected on the conveying device can pass through the spacing structure from the conveying channel; A lifting gate, the lifting gate is installed on the frame, and the lifting gate is used to open and close the conveying channel; A proximity sensor is installed on the frame, the proximity sensor is located at the entrance side of the lifting gate, the proximity sensor is used to detect the object to be detected on the conveying device, and the proximity sensor is electrically connected to the lifting gate to drive the lifting gate to open the conveying channel according to the proximity sensor.
2. The gate lifting device according to claim 1, characterized in that: The proximity sensor is a proximity switch or a through-beam optical fiber sensor.
3. The gate lifting device according to claim 1, characterized in that: The proximity sensors are installed on both sides of the conveying channel in the width direction of the conveying device; and / or, The proximity sensors are arranged along the width direction of the conveying device; and / or, The proximity sensor is arranged close to the lifting gate.
4. The gate lifting device according to any one of claims 1 to 3, characterized in that: The frame is provided with a mounting seat, and the proximity sensor is mounted on the mounting seat, wherein: The mounting seat is mounted on the frame in a manner that it can be adjusted along the conveying direction of the conveying device; and / or, The proximity sensor is mounted on the mounting seat in a manner that it can be adjusted along the lifting direction of the lifting gate.
5. The gate lifting device according to claim 4, characterized in that: The mounting seat is fixedly mounted on the frame through a screw connection piece. The mounting seat is provided with a first waist-shaped hole for the screw connection piece to pass through. The first waist-shaped hole is extended along the conveying direction of the conveying device.
6. The gate lifting device according to claim 5, characterized in that: The mounting seat is provided with a plurality of the first waist-shaped holes at intervals along the conveying direction of the conveying device.
7. The gate lifting device according to claim 4, characterized in that: The mounting seat is provided with a second waist-shaped hole for the proximity sensor to pass through, the second waist-shaped hole is extended along the lifting direction of the lifting gate, and the proximity sensor is fixedly installed at the second waist-shaped hole through a locking nut.
8. The gate lifting device according to claim 4, characterized in that: The mounting seat includes a first plate portion and a second plate portion, the first plate portion is fitted and mounted on the frame, the second plate portion is bent and extended from one end of the first plate portion close to the conveying device, and the proximity sensor is mounted on the second plate portion.
9. An oven, characterized in that: include: A box body, wherein a conveying device is installed in the box body; The gate lifting device is the gate lifting device as described in any one of claims 1-8, and the gate lifting device is installed in the box body corresponding to the conveying device.
10. The oven according to claim 9, characterized in that The box body is formed with a preheating module, a heating module and a cooling module which are connected in sequence. The gate lifting device is arranged between the preheating module and the heating module, between the heating module and the cooling module, and at the outlet of the cooling module.