Automatic opening and closing door of spring heat treatment furnace for bed net

Abstract

The utility model discloses an automatic opening and closing door of a spring heat treatment furnace for a bed net, which relates to the technical field of automatic opening and closing doors and comprises a door frame, the door frame is connected with a movable door through a rotating component, and a push-pull component is arranged on the door frame and in the middle of the height direction of the door frame. The push-pull assembly comprises an air cylinder base, an air cylinder, a universal movable head, a connecting piece and a connecting head. A sensor is fixedly arranged at the top end of the front face of the door frame. According to the spring heat treatment furnace automatic opening and closing door for the bed net, the problem that the movable door is stressed unevenly is solved, the movable door is prevented from deviating in the vertical direction after being used for a long time, resource waste is avoided, more labor is saved and energy consumption is reduced when the air cylinder pulls the movable door due to the arrangement position of the push-pull assembly, and in addition, the spring heat treatment furnace automatic opening and closing door is suitable for popularization and application. When the heat treatment furnace works, the temperature can reach 180-260 DEG C, and the movable door can be automatically opened and closed, so that the condition that a worker is scalded due to contact with the movable door is avoided, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic door opening and closing, in particular to an automatic door opening and closing device for a spring heat treatment furnace for a bed net. Background Art

[0002] The spring heat treatment furnace for a bed net integrates advanced automatic control and precise temperature control technologies to ensure that the springs obtain uniform thermal influence and ideal physical properties during the heat treatment process, thereby improving the elasticity and durability of the bed net springs. The existing spring heat treatment furnace needs to be manually opened and closed during use. Since the temperature of the heat treatment furnace is relatively high, it is easy to scald the user, and the safety is poor.

[0003] According to the existing automatic non-pressure air door (a Chinese patent with the publication number CN203531947U and the publication date of April 9, 2014), an air door, a sensor and a cylinder are disclosed. The upper end of the air door is connected to the cylinder through an air door connecting rod, and the sensor is arranged on one side of the cylinder. However, the cylinder of this automatic non-pressure air door is arranged on the door beam, and the force application point of the air door is on the upper part of the door. The force on this air door is uneven, and it will shift in the vertical direction after long-term use and cannot be used continuously, resulting in waste of resources. Content of the Utility Model

[0004] Aiming at the defects existing in the above-mentioned prior art, the purpose of the utility model is to provide an automatic door opening and closing device for a spring heat treatment furnace for a bed net, which can solve the problem of uneven force on the door when pushing and pulling the door.

[0005] The purpose of the utility model is realized by adopting the following technical scheme:

[0006] An automatic door opening and closing device for a spring heat treatment furnace for a bed net, including a door frame, an active door is rotatably arranged on the front surface of the door frame, the door frame and the active door are connected through a rotating component, a pushing and pulling component is arranged on the door frame, the pushing and pulling component is arranged in the middle of the door frame in the height direction, the pushing and pulling component is used for pushing and pulling the active door, the pushing and pulling component includes a cylinder base, a cylinder, a universal movable head, a connecting piece and a connecting head, the cylinder base is fixedly connected to the door frame, the cylinder base is fixedly connected to the connecting head, the cylinder is fixedly connected to the connecting head, the universal movable head is fixedly connected to the output end of the cylinder, the connecting piece is rotatably arranged on the universal movable head, the connecting piece is fixedly connected to the active door, and a sensor is fixedly arranged at the top end of the front surface of the door frame.

[0007] Preferably, the rotating assembly includes a fixing member and a movable shaft. The fixing member is sleeved on the movable shaft. The fixing member includes a first fixing member and a second fixing member. The first fixing member is fixedly connected to the door frame. The movable shaft is rotatably arranged on the first fixing member. The second fixing member is rotatably arranged on the movable shaft. The second fixing member is fixedly connected to the movable door.

[0008] Preferably, a plurality of the fixing members are sleeved on the movable shaft.

[0009] Preferably, the sensor includes an opening sensor and a closing sensor.

[0010] Preferably, the cylinder base and the door frame are connected by a first mounting plate, and they are respectively fixedly connected to the first mounting plate.

[0011] Preferably, a protective shell is arranged outside the cylinder, and the protective shell is fixedly connected to the cylinder base.

[0012] Preferably, the cylinder base and the protective shell are connected by a second mounting plate, and they are respectively fixedly connected to the second mounting plate.

[0013] Preferably, two sets of the movable door, the rotating assembly, the pushing and pulling assembly, and the sensor are provided, and they are respectively located on the left and right sides of the door frame.

[0014] Preferably, the cylinder and the connecting head are connected by bolts.

[0015] The beneficial effects of the present utility model are as follows:

[0016] An automatic switch door of a spring heat treatment furnace for a bed net of the present utility model is provided with a pushing and pulling assembly on the door frame. The pushing and pulling assembly is arranged in the middle of the door frame in the height direction, so that the force application point of the movable door during pushing and pulling is at the middle height of the door, avoiding the problem of uneven force on the movable door, preventing the vertical deviation of the movable door after long-term use, avoiding waste of resources, and the setting position of the pushing and pulling assembly makes it more labor-saving and energy-saving when the cylinder pulls the movable door. In addition, the temperature during the operation of the heat treatment furnace can reach 180°-260°. Since the movable door can be automatically opened and closed, it avoids the situation that the staff is scalded by contacting the movable door, improving safety. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is Figure 1 a partial enlarged view of area A of

[0019] In the figure: 100, door frame; 200, movable door; 300, rotating assembly; 301, fixing part; 302, movable shaft; 303, first fixing part; 304, second fixing part; 400, pushing and pulling assembly; 401, cylinder base; 402, cylinder; 403, universal movable head; 404, connecting part; 405, connecting head; 500, sensor; 501, opening sensor; 502, closing sensor; 600, first mounting plate; 700, protective shell; 800, second mounting plate. Detailed implementation mode

[0020] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer and more understandable, the following further describes the utility model in combination with the accompanying drawings and embodiments.

[0021] The embodiment provided by the utility model is as follows Figures 1 - 2 As shown, an automatic door opening and closing device for a spring heat treatment furnace for a bed net includes a door frame 100. A movable door 200 is rotatably arranged on the front surface of the door frame 100. The door frame 100 and the movable door 200 are connected by a rotating assembly 300. A pushing and pulling assembly 400 is arranged on the door frame 100. The pushing and pulling assembly 400 is arranged in the middle of the door frame 100 in the height direction. The pushing and pulling assembly 400 is used to push and pull the movable door 200. The pushing and pulling assembly 400 includes a cylinder base 401, a cylinder 402, a universal movable head 403, a connecting part 404 and a connecting head 405. The cylinder base 401 is fixedly connected to the door frame 100. The cylinder base 401 is fixedly connected to the connecting head 405. The cylinder 402 is fixedly connected to the connecting head 405. The universal movable head 403 is fixedly connected to the output end of the cylinder 402. The connecting part 404 is rotatably arranged on the universal movable head 403. The connecting part 404 is fixedly connected to the movable door 200. A sensor 500 is fixedly arranged at the top end of the front surface of the door frame 100.

[0022] During use, when a staff member carries the spring to be heat treated through the sensing area, the sensor 500 transmits a signal to the control center. The control center controls the cylinder 402 to start. The output end of the cylinder 402 contracts inward. The connecting part 404 is pulled through the universal movable head 403, and then the movable door 200 is pulled to open. The staff member places the spring in the heat treatment furnace and then leaves the sensing area. The sensor 500 stops transmitting the signal. The control center controls the cylinder 402 to reset. The output end of the cylinder 402 extends outward. The connecting part 404 is pushed through the universal movable head 403, and then the movable door 200 is pushed to close. When the spring processing is completed, the staff member only needs to repeat the above steps to take out the spring and complete a round of heat treatment work.

[0023] Preferably, the rotating assembly 300 includes a fixing member 301 and a movable shaft 302. The fixing member 301 is sleeved on the movable shaft 302. The fixing member 301 includes a first fixing member 303 and a second fixing member 304. The first fixing member 303 is fixedly connected to the door frame 100. The movable shaft 302 is rotatably arranged on the first fixing member 303. The second fixing member 304 is rotatably arranged on the movable shaft 302. The second fixing member 304 is fixedly connected to the movable door 200.

[0024] Preferably, a plurality of fixing members 301 are sleeved on the movable shaft 302. The arrangement of the plurality of fixing members 301 makes the arrangement of the movable shaft 302 more secure and the stability during rotation better.

[0025] Preferably, the sensor 500 includes an opening sensor 501 and a closing sensor 502. The opening sensor 501 and the closing sensor 502 respectively sense the opening and closing states of the movable door 200. If one of the sensors 500 fails, the other sensor 500 can still ensure that the movable door 200 completes part of the work. For example, during spring heat treatment, if the closing sensor 502 fails, since the opening sensor 501 works normally, the movable door 200 can still be opened normally, and the staff can still take out the heat-treated spring on time, avoiding waste of materials.

[0026] Preferably, the cylinder base 401 and the door frame 100 are connected by a first mounting plate 600, and they are respectively fixedly connected to the first mounting plate 600. By providing the first mounting plate 600, the installation of the cylinder base 401 is facilitated, and the installation stability is better.

[0027] Preferably, a protective shell 700 is arranged outside the cylinder 402. The protective shell 700 is fixedly connected to the cylinder base 401. By providing the protective shell 700, the contact between the cylinder 402 and the outside can be effectively reduced, and the interference of external factors on the operation of the cylinder 402 can be reduced.

[0028] Preferably, the cylinder base 401 and the protective shell 700 are connected by a second mounting plate 800, and they are respectively fixedly connected to the second mounting plate 800. By providing the second mounting plate 800, the installation of the protective shell 700 is facilitated, and the installation stability is better.

[0029] Preferably, two sets of the movable door 200, the rotating assembly 300, the pushing and pulling assembly 400 and the sensor 500 are provided, which are respectively located on the left and right sides of the door frame 100. The arrangement of two movable doors 200 can meet more diverse usage scenarios. If one of the movable doors 200 fails, the work of the heat treatment furnace can be continued by opening the other movable door 200, improving the work efficiency.

[0030] Preferably, the cylinder 402 and the connector 405 are connected by bolts. The staff can adjust the direction of the cylinder 402 according to the needs of the use scenario. The staff unscrews the bolts on the connector 405, and then adjusts the direction of the cylinder 402 relative to the connector 405. After the adjustment is completed, the bolts are screwed in to complete the fixation of the cylinder 402.

[0031] An automatic switch door for a spring heat treatment furnace for a bed net of the present utility model is provided with a push-pull assembly 400 on the door frame 100. The push-pull assembly 400 is arranged in the middle of the door frame 100 in the height direction, so that the force application point of the movable door 200 during pushing and pulling is at the middle height of the door, avoiding the problem of uneven force on the movable door 200, preventing the movable door 200 from shifting in the vertical direction after long-term use, avoiding waste of resources, and the setting position of the push-pull assembly 400 makes it more labor-saving and energy-saving when the cylinder 402 pulls the movable door 200. In addition, the temperature during the operation of the heat treatment furnace can reach 180°-260°. Since the movable door 200 can be automatically opened and closed, it avoids the situation of the staff being scalded by contacting the movable door 200, improving safety.

[0032] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An automatic door opening and closing device for a spring heat treatment furnace for a bed net, comprising a door frame (100), characterized in that: A movable door (200) is rotatably arranged on the front of the door frame (100). The door frame (100) and the movable door (200) are connected by a rotating assembly (300). A pushing and pulling assembly (400) is arranged on the door frame (100). The pushing and pulling assembly (400) is arranged in the middle of the door frame (100) in the height direction. The pushing and pulling assembly (400) is used to push and pull the movable door (200). The pushing and pulling assembly (400) includes a cylinder base (401), a cylinder (402), a universal movable head (403), a connecting piece (404) and a connecting head (405). The cylinder base (401) is fixedly connected to the door frame (100). The cylinder base (401) is fixedly connected to the connecting head (405). The cylinder (402) is fixedly connected to the connecting head (405). The universal movable head (403) is fixedly connected to the output end of the cylinder (402). The connecting piece (404) is rotatably arranged on the universal movable head (403). The connecting piece (404) is fixedly connected to the movable door (200). A sensor (500) is fixedly arranged at the top end of the front of the door frame (100).

2. The automatic door switch of the spring heat treatment furnace for bed nets according to claim 1, characterized in that: The rotating assembly (300) includes a fixing piece (301) and a movable shaft (302). The fixing piece (301) is sleeved on the movable shaft (302). The fixing piece (301) includes a first fixing piece (303) and a second fixing piece (304). The first fixing piece (303) is fixedly connected to the door frame (100). The movable shaft (302) is rotatably arranged on the first fixing piece (303). The second fixing piece (304) is rotatably arranged on the movable shaft (302). The second fixing piece (304) is fixedly connected to the movable door (200).

3. The automatic door switch of the spring heat treatment furnace for bed nets according to claim 2, characterized in that: A plurality of the fixing pieces (301) are sleeved on the movable shaft (302).

4. An automatic door opening and closing device for a spring heat treatment furnace for a bed net according to claim 1, characterized in that: The sensor (500) includes an opening sensor (501) and a closing sensor (502).

5. An automatic door opening and closing device for a spring heat treatment furnace used in a bed net according to claim 1, characterized in that: The cylinder base (401) and the door frame (100) are connected by a first mounting plate (600), and both are fixedly connected to the first mounting plate (600).

6. An automatic door opening and closing device for a spring heat treatment furnace for a bed net according to claim 1, characterized in that: A protective shell (700) is arranged outside the cylinder (402). The protective shell (700) is fixedly connected to the cylinder base (401).

7. An automatic door opening and closing device for a spring heat treatment furnace for a bed net according to claim 6, characterized in that: The cylinder base (401) and the protective shell (700) are connected by a second mounting plate (800), and both are fixedly connected to the second mounting plate (800).

8. An automatic door switch for a spring heat treatment furnace for a bed net according to claim 1, characterized in that: Two sets of the movable door (200), the rotating assembly (300), the pushing and pulling assembly (400) and the sensor (500) are provided, and are respectively located on the left and right sides of the door frame (100).

9. The automatic door switch of the spring heat treatment furnace for bed nets according to claim 1, characterized in that: The cylinder (402) and the connecting head (405) are connected by bolts.

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