Timing door opening structure of oven

Abstract

The utility model discloses an oven timing door opening structure which comprises a blocking rod hinged to the lower portion of an oven protection door, and the blocking rod can abut against the oven protection door after being turned upwards. A connecting piece is arranged on the outer wall of the blocking rod, a penetrating hole is formed in the connecting piece, and a driving rod of the air cylinder can penetrate through the penetrating hole; two abutting blocks are arranged on the inner wall of the stopping rod, and the two abutting blocks can make contact with the oven protection door; the air cylinder is electrically connected with a timing device, and the timing device drives the air cylinder to retract to leave the penetrating hole after timing is finished, so that the oven protection door can be opened. The stop rod is arranged on the oven protection door and locked by the air cylinder and the timing device, the stop rod can be taken down only after 20 minutes of timing, the oven protection door can be opened, and product scrapping caused by the fact that workers open the oven protection door in advance is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a oven, concretely is a kind of oven timing door opening structure. BACKGROUND

[0002] In die-casting production process, the casting needs to be installed with a ridge, before installing the ridge, the ridge needs to be cleaned, and after cleaning, it needs to be heated in an oven, heated to 180 DEG C, and then kept warm for 20 minutes, and then it can be taken out, if it is taken out less than 20 minutes, it will cause the aluminum liquid around the casting ridge to shrink, and abnormal quality phenomena such as shell separation will occur, resulting in product scrap. CONTENT OF THE UTILITY MODEL

[0003] To solve the defects of the prior art, the utility model provides a kind of oven timing door opening structure, the utility model is installed on the oven door with a blocking rod, the blocking rod is locked with cylinder and timing device, only when timing is ended for 20 minutes, the blocking rod can be removed, and the oven door can be opened, to prevent workers from opening the oven door in advance and causing product scrap.

[0004] To achieve the above technical purpose, the utility model adopts the following technical scheme: a kind of oven timing door opening structure, including the blocking rod hinged in the lower of oven door, the blocking rod can abut against the oven door after turning over;The outer wall of the blocking rod is provided with a connecting piece, the connecting piece is provided with a through hole, and the through hole can be provided with the driving rod of cylinder;The inner wall of the blocking rod is provided with two abutting blocks, and the two abutting blocks can contact the oven door;

[0005] The cylinder is electrically connected with timing device, and the timing device drives the cylinder to retract to leave the through hole after timing is ended, so that the oven door can be opened.

[0006] The end of the blocking rod is provided with a hinged seat, the hinged seat adopts two fixed plate structures, and the end of the blocking rod is hinged on the two fixed plate structures by using a pin shaft, so that the blocking rod can be turned over up and down.

[0007] The two abutting blocks are installed above and below, and can abut against the upper edge and lower edge of the oven door respectively;The thickness of the two abutting blocks is greater than the thickness of the blocking rod, so that the blocking rod is away from the oven door;The width of the two abutting blocks is greater than the width of the blocking rod.

[0008] The through hole is a circular hole, and the inner diameter is greater than the outer diameter of the blocking rod.

[0009] The timing device comprises an intermediate relay KA, a time relay KT, a cylinder electromagnetic valve KM1, a push button switch SB, a temperature controller, one end of the push button switch SB is connected with a live wire L of commercial power, the other end of the push button switch SB is connected with a normally closed contact of the time relay KT, a normally closed contact switch end of the time relay KT is connected with a coil of the cylinder electromagnetic valve KM1, the coil of the cylinder electromagnetic valve KM1 is connected with a neutral wire N of commercial power, one end of the temperature controller is connected with the live wire L of commercial power, the other end of the temperature controller is connected with a coil of the intermediate relay KA, the other end of the coil of the intermediate relay KA is connected with the neutral wire N of commercial power, one end of a normally open contact of the intermediate relay KA is connected with the live wire L of commercial power, the other end of the normally open contact of the intermediate relay KA is connected with a coil of the time relay KT, the other end of the coil of the time relay KT is connected with the neutral wire N of commercial power, one end of a normally open contact of the cylinder electromagnetic valve KM1 is connected with the live wire L of commercial power, the other end of the normally open contact of the cylinder electromagnetic valve KM1 is connected with a normally closed contact of the time relay KT.

[0010] In conclusion, the utility model obtains the following technical effects:

[0011] The utility model discloses a blocking rod is installed on the oven door, and the blocking rod is locked by a cylinder and a timing device, only when the timing is 20 minutes, the blocking rod can be removed, and the oven door can be opened, preventing the worker from opening the oven door in advance and causing the product to be scrapped.

[0012] After the device is started, the temperature process of the product is guaranteed, and the quality stability of the product is improved.

[0013] The temperature controller outputs a relay control timer, and the staff on site cannot change the control program privately, and if forcibly powering off, the system cannot produce, and an alarm will be given. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model relates to an oven timing door opening structure.

[0015] Figure 2 It is a blocking rod schematic view.

[0016] Figure 3 It is the electrical connection schematic view of the utility model. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in connection with the drawings.

[0018] The specific embodiments are merely illustrative of the present application, and are not intended to limit the present application, and those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the present application.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0021] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0023] Embodiment:

[0024] Figure 1 The utility model relates to a kind of oven timing opening structure, including the blocking bar 3 being hinged below oven door 2, the blocking bar 3 can be butted after turning up the oven door 2;Connecting piece 32 is provided on the outer wall of the blocking bar 3, the through hole 33 is opened in the connecting piece 32, the through hole 33 can be worn the driving rod 41 of cylinder 4;Two abutting blocks 34 are provided on the inner wall of the blocking bar 3, and the two abutting blocks 34 can contact the oven door 2;

[0025] The cylinder 4 is electrically connected timing device, and the timing device drives the cylinder 4 to retract to leave the through hole 33 after timing ends, so that the oven door 2 can be opened.

[0026] The utility model sets up a blocking bar on oven door, only when timing ends, cylinder leaves blocking bar, blocking bar can be removed at this time, so that oven door can be opened, prevent oven from being opened before heat preservation time and make internal product unqualified.

[0027] Figure 2 It is blocking bar schematic diagram, the end of the blocking bar 3 is provided with hinged seat 31, the hinged seat 31 uses two fixed plate structures, and the end of the blocking bar 3 is hinged on the two fixed plate structures using pin shaft, so that the blocking bar 3 can be turned up and down, and turning down can leave the area of entire oven door, prevent affecting door opening and closing.

[0028] The two abutting blocks 34 are installed upside down, and the upper edge and the lower edge of the oven door 2 can be butted respectively;The thickness of the two abutting blocks 34 is greater than the thickness of the blocking bar 3, so that the blocking bar 3 is away from the oven door 2;The width of the two abutting blocks 34 is greater than the width of the blocking bar 3. Two abutting blocks are arranged to prevent the blocking bar from contacting the oven door, prevent the heat of the oven door from being transmitted to the blocking bar, and affect the work when worker contacts the blocking bar.

[0029] The through hole 33 is a circular hole, and the inner diameter is greater than the outer diameter of the blocking bar 3. Specifically, the inner diameter is slightly larger than the outer diameter of the blocking bar 3, so that the driving rod 41 is just worn into the hole, and the blocking bar is not shaken.

[0030] Timing device can adopt timer, timing 20 minutes in advance, signal is sent to cylinder after timing ends, and cylinder is controlled to retract.

[0031] The utility model gives a kind of embodiment of timing device:

[0032] Figure 3It is the electrical connection schematic diagram of the utility model, the timing device includes intermediate relay KA, time relay KT, cylinder solenoid valve KM1, button switch SB, temperature controller, one end of button switch SB connects live wire L of commercial power, the other end of button switch SB connects normally closed contact of time relay KT, normally closed contact switch end of time relay KT is connected to coil of cylinder solenenoide valve KM1, coil of cylinder solenenoide valve KM1 is connected to neutral wire N of commercial power, one end of temperature controller is connected to live wire L of commercial power, the other end of temperature controller connects electric coil of intermediate relay KA, the other end of coil of intermediate relay KA connects neutral wire N of commercial power, one end of normally open contact of intermediate relay KA is connected to live wire L of commercial power, the other end of normally open contact of intermediate relay KA is connected to coil of time relay KT, the other end of coil of time relay KT connects neutral wire N of commercial power, one end of normally open contact of cylinder solenenoide valve KM1 is connected to live wire L of commercial power, the other end of normally open contact of cylinder solenenoide valve KM1 is connected to normally closed contact of time relay KT.

[0033] Before the oven works, press button switch SB, normally open contact KM1 is attracted normally closed, button switch SB is self-locking, the whole system starts to work, and the detection end (not shown) of temperature controller starts to detect the temperature in the oven, when the temperature reaches 180 DEG C, temperature controller output point outputs signal to the coil of intermediate relay KA, and the intermediate relay KA controls the cylinder solenenoide valve KM1 to be powered to extend and lock the blocking rod 3, when the time relay KT is timed for 20 minutes, the time relay KT coil is powered, the time relay KT normally closed point is disconnected, and the cylinder solenenoide valve KM1 is powered off, and the driving rod 41 is retracted.

[0034] The time relay KT realizes timing for 20 minutes.

[0035] The on-site operator can start to open the oven to take out the use phenomenon when the temperature of the oven does not reach the standard temperature or the temperature reaches but does not carry out the heat preservation, the utility model designs the locking device, the oven is in the heating process, the cylinder is always in the action state, locks the oven protective door, when the temperature reaches 180 DEG C, the temperature controller output relay is closed, provides the timer coil power supply, and the oven timer starts to work, the timer reaches 20 minutes, the cylinder solenenoide valve acts, the cylinder acts and retracts to the reset position, and the oven protective door can be opened. Thus, the operator can avoid taking the use of the object at will.

[0036] In addition, the temperature controller of the utility model selects the relay output, and the thermocouple and the temperature controller model are matched according to the situation, so that the accuracy of the temperature is guaranteed, the timer output power supply is low level, the contact is in high-frequency attraction in the off state, and the effect is better.

[0037] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments are within the scope of the technical scheme of the present application.

Claims

1. An oven timer door opening structure, characterized by: The application relates to a blocking rod (3) hinged below an oven door (2), which can abut against the oven door (2) after being turned up; a connecting piece (32) is arranged on the outer wall of the blocking rod (3), the connecting piece (32) is provided with a through hole (33), the through hole (33) can pass through the driving rod (41) of a cylinder (4); two abutting blocks (34) are arranged on the inner wall of the blocking rod (3), and the two abutting blocks (34) can contact the oven door (2). The cylinder (4) is electrically connected with a timing device, which drives the cylinder (4) to retract and leave the through hole (33) after timing, so that the oven door (2) can be opened.

2. The oven door opening structure according to claim 1, wherein: The end of the blocking rod (3) is provided with a hinged seat (31) adopting a two-piece fixed plate structure, and the end of the blocking rod (3) is hinged on the two-piece fixed plate structure through a pin shaft, so that the blocking rod (3) can be turned up and down.

3. The oven door opening structure according to claim 1, wherein: The two abutting blocks (34) are installed upwards and downwards respectively, and can abut against the upper edge and the lower edge of the oven door (2) respectively; the thickness of the two abutting blocks (34) is greater than the thickness of the blocking rod (3), so that the blocking rod (3) is away from the oven door (2); the width of the two abutting blocks (34) is greater than the width of the blocking rod (3).

4. The oven door opening structure according to claim 1, wherein: The through hole (33) is a circular hole, and the inner diameter is greater than the outer diameter of the blocking rod (3).

5. The oven door opening structure according to claim 1, wherein: The timing device comprises an intermediate relay KA, a time relay KT, a cylinder electromagnetic valve KM1, a button switch SB and a temperature controller; one end of the button switch SB is connected with a live wire L of commercial power, the other end of the button switch SB is connected with a normally closed contact of the time relay KT, the normally closed contact of the time relay KT is connected with a coil of the cylinder electromagnetic valve KM1, the coil of the cylinder electromagnetic valve KM1 is connected with a neutral wire N of commercial power, one end of the temperature controller is connected with the live wire L of commercial power, the other end of the temperature controller is connected with a coil of the intermediate relay KA, the other end of the coil of the intermediate relay KA is connected with the neutral wire N of commercial power, one end of a normally open contact of the intermediate relay KA is connected with the live wire L of commercial power, the other end of the normally open contact of the intermediate relay KA is connected with a coil of the time relay KT, the other end of the coil of the time relay KT is connected with the neutral wire N of commercial power; one end of a normally open contact of the cylinder electromagnetic valve KM1 is connected with the live wire L of commercial power, and the other end of the normally open contact of the cylinder electromagnetic valve KM1 is connected with the normally closed contact of the time relay KT.

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