Toughening furnace for producing and processing non-contact mobile phone tempered film

Abstract

The invention relates to the technical field of glass toughening, and discloses a non-contact mobile phone toughened film production and processing toughening furnace, which comprises a main furnace and a hanging frame, a toughening melt for soaking an object to be toughened is stored in the main furnace, and the hanging frame can carry the object to be toughened in and out of the main furnace; the hanging frame comprises a tempering area and an impurity bin; the tempering area is used for loading an object to be tempered, and the impurity bin is located under the tempering area; a filter screen is arranged at the bottom of the impurity bin, and the impurity bin is provided with a movable filter plate opposite to the tempering area; the movable filter plate can be switched into an open state or an isolated state under the driving of the driving part, the open state means that the impurity bin is communicated with the external area without barriers, and the isolated state means that only substances capable of passing through the filter holes are allowed to pass through the space between the impurity bin and the external area. And when the tempering is finished, glass chips are prevented from scratching a glass substrate for manufacturing a tempered film along with the flowing of the molten liquid.

Description

Technical Field

[0001] The invention relates to the technical field of glass tempering, and in particular to a tempering furnace for producing and processing contactless mobile phone tempered films. Background Art

[0002] When tempering the tempered film, a hanging frame is often used to load a large number of glass substrates for chemical tempering at the same time. On the tempering production line, since the glass substrates may have process defects and material defects, it is impossible to guarantee that they will not break in the high-temperature melt. After tempering is completed, it is also impossible to check in time whether the batch of glass substrates is damaged, resulting in glass fragments remaining in the melt in the tempering furnace.

[0003] During the tempering process, the molten liquid will be stirred as the hanging frame moves in and out of the molten liquid. The flowing liquid will drive the glass fragments to move at a certain speed, which may scratch the glass substrate being tempered.

[0004] The Chinese patent application with application number 2013102923702 discloses a glass support frame, which is used to be arranged in a chemical tempering furnace to place at least one glass substrate to be tempered. The glass support frame includes a frame and a receiving member. The frame is used to place the glass substrate. The receiving member is arranged at the bottom of the frame and has a plurality of pores for filtering glass debris. The glass support frame of the chemical tempering furnace can prevent the glass debris in the chemical tempering furnace from continuously scratching the glass substrate to be tempered. At the same time, it is only necessary to take the glass support frame out of the chemical tempering furnace each time to clean the filtered glass debris from the glass support frame. It is not necessary to clean the chemical tempering furnace after each tempering, which saves the preparation time before tempering and improves production efficiency. However, the glass support frame can only reduce the risk of glass debris contaminating the tempering melt. When the glass support frame is evacuated from the melt, the flowing liquid may still drive the glass debris deposited at the bottom to move again, scratching the glass substrate that has not yet evacuated from the melt, reducing the yield rate.

[0005] In summary, there is an urgent need for a contactless tempering furnace for producing and processing mobile phone tempered films that can not only collect broken glass fragments during the tempering process, but also prevent the glass fragments from scratching the glass substrate used to make the tempered film as the molten liquid flows at the end of the tempering process. Summary of the invention

[0006] In view of the problems of glass debris collection and flow in the prior art, a contactless tempering furnace for the production and processing of mobile phone tempered film is proposed, which can not only collect glass debris broken during the tempering process, but also prevent the glass debris from scratching the glass substrate used to make the tempered film as the molten liquid flows at the end of tempering.

[0007] In order to solve the above problems, the technical solution of the present invention is:

[0008] A tempering furnace for contactless production and processing of tempered films for mobile phones, comprising a main furnace and a hanging frame; the main furnace stores tempering melt for soaking objects to be tempered, and the hanging frame can carry the objects to be tempered in and out of the main furnace; the hanging frame comprises a tempering area and an impurity bin; the tempering area is used to load objects to be tempered, and the impurity bin is located directly below the tempering area; the bottom of the impurity bin is a filter net, and the impurity bin is provided with a movable filter plate opposite to the tempering area; the movable filter plate is switched to an open state or an isolated state under the drive of a driving member, the open state means that substances can pass through the movable filter plate without passing through the filter holes on the movable filter plate, and the isolated state means that only substances that can pass through the filter holes are allowed to pass through the movable filter plate.

[0009] As a preferred technical solution, the projection of the tempered zone on the impurity bin is located inside the tempered zone.

[0010] As a preferred technical solution, the driving member includes an active member and a driven member, the active member is arranged on the main furnace, the driven member is arranged on the movable filter plate, and the active member drives the movable filter plate to rotate by driving the driven member.

[0011] As a preferred technical solution, there are several groups of movable filter plates, the driven member on each movable filter plate is a gear, and adjacent driven members are meshed for transmission.

[0012] As a preferred technical solution, when the impurity bin is located in the main furnace, the outer surface of the impurity bin is in contact with the inner surface of the cavity of the main furnace.

[0013] As a preferred technical solution, a variable filter plate is provided at the bottom of the impurity bin, and the variable filter plate is used to make the bottom plate of the impurity bin in a passage state or a filtrate state, wherein the passage state is that substances can pass through both sides of the bottom of the impurity bin, and the filtrate state is that only substances that can pass through the filter holes on the bottom of the impurity bin are allowed to pass through both sides of the bottom of the impurity bin.

[0014] As a preferred technical solution, when the hanging frame enters the cavity of the main furnace, the bottom plate of the impurity bin is in a passage state, and the movable filter plate is in an isolation state.

[0015] As a preferred technical solution, a filter partition is further provided between the movable filter plate and the variable filter plate.

[0016] As a preferred technical solution, a liquid inlet pump is provided on the filter screen at the bottom of the impurity bin.

[0017] As a preferred technical solution, a longitudinal partition is provided in the impurity bin, the liquid inlet pump is provided on the filter screen on one side of the longitudinal partition, and a liquid outlet pump is provided on the other side.

[0018] Beneficial effects of the present invention:

[0019] 1. The tempering furnace for contactless production and processing of mobile phone tempered film of the present invention comprises a main furnace and a hanging frame, wherein the hanging frame comprises a tempering area and an impurity bin, wherein a movable filter plate is arranged on the impurity bin, and the impurity bin has an open state and an isolated state. In the open state, impurities such as glass debris generated by the glass substrate in the tempering area can pass through the movable filter plate and be deposited inside the impurity bin. When the tempering process is completed and the hanging frame needs to be evacuated from the tempering melt, the movable filter plate is switched to an isolated state, so that under the action of the tumbling fluid, impurities such as glass debris in the impurity bin are restricted to flow in the impurity bin, thereby preventing them from contacting and scratching the glass substrate in the tempering area. At the same time, glass debris and the like can be taken away from the tempering melt in the main furnace along with the hanging frame, thereby realizing contactless prevention and cleaning and preventing the tempering melt from being contaminated.

[0020] 2. The outer diameter of the impurity bin of the tempering furnace for the production and processing of the contactless mobile phone tempered film of the present invention is the same as the inner diameter of the cavity of the main furnace, so that the molten liquid in the main furnace needs to first pass through the filter net composed of the variable filter plate, and then pass through the movable filter plate, and then gradually immerse the hanging frame. Therefore, each time the glass substrate is tempered, the molten liquid in the main furnace can be filtered once to isolate the original impurities in the furnace body from the tempering area, so as to prevent the impurities from affecting the ion exchange during the tempering process.

[0021] 3. The tempered glass furnace for the production and processing of contactless mobile phone tempered glass films of the present invention has a variable filter plate at the bottom of its impurity bin. When the hanging frame enters the main furnace, the movable filter plate is in an isolation state, and the variable filter plate is in a passage state, so that the impurities originally existing in the main furnace can enter between the movable filter plate and the variable filter plate. When the variable filter plate is switched to the filtrate state, the collection and cleaning of the original impurities in the main furnace is realized.

[0022] 4. The tempering furnace for producing and processing contactless mobile phone tempered films of the present invention has a longitudinal partition in its impurity bin, and a liquid inlet pump and a liquid outlet pump are respectively provided on both sides of the longitudinal partition to guide the flow direction of the liquid under the filter screen. When the liquid carries impurities into the impurity bin, the longitudinal diaphragm can prevent it from flowing back into the melt in the main furnace outside the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of a tempering furnace used for producing and processing the contactless mobile phone tempered film according to the present invention.

[0024] Figure 2 It is a partial cutaway schematic diagram of the main furnace of the present invention;

[0025] Figure 3 This is a schematic diagram of the open state of the movable filter plate of the impurity bin of the present invention;

[0026] Figure 4 It is a partial schematic diagram of the movable filter plate in isolation state;

[0027] Figure 5 for Figure 2 A is an enlarged schematic diagram;

[0028] Figure 6 This is a schematic diagram of the structure of the variable filter plate at the bottom of the impurity bin of the present invention;

[0029] Figure 7 This is a schematic plan view of the impurity bin filtering principle of the present invention;

[0030] Figure 8 It is a schematic plan view of the filtering principle of the impurity bin with a filtering interlayer of the present invention;

[0031] Fig. 9 It is a schematic plan view of the filtering principle of the impurity bin capable of active filtering according to the present invention.

[0032] The reference numerals and components involved in the drawings are as follows:

[0033] 1. Main furnace;

[0034] 2. Hanging frame; 21. Tempering area; 22. Impurity bin; 221. Movable filter plate; 222. Filter screen; 223. Variable filter plate; 224. Filter interlayer; 225. Longitudinal interlayer; 226. Liquid inlet pump; 227. Liquid outlet pump;

[0035] 3. Preheating furnace; 4. Cover; 5. Hoisting mechanism;

[0036] 6. Driving member; 61. Active member; 62. Follower member. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] In order to better understand the tempering furnace for contactless mobile phone tempered film production and processing provided by this embodiment, the existing tempered film tempering furnace is briefly introduced below. The existing tempered film tempering furnace usually includes a main furnace and a preheating furnace. The hanging frame with the glass substrate is hung in the preheating furnace for preheating, and then transferred to the tempered melt in the main furnace. The tempered melt is generally a salt melt such as potassium salt. After a certain period of time, the hanging frame in the tempered melt is hung out, and the glass substrate in the hanging frame is further processed to obtain the final mobile phone tempered film; the existing technology completely relies on the replacement of the melt to keep the melt in the main furnace clean, so as not to scratch the glass substrate immersed in the melt during tempering. Moreover, since the tempered film needs to be cooled at room temperature after coming out of the melt, it cannot be checked in time, so it is necessary to approach the high-temperature melt in the main furnace to determine whether there are impurities such as glass debris left, or directly replace the melt. Frequent operations greatly increase the danger of process operations and reduce the tempering efficiency of the production line.

[0040] Please see attached Figure 1 In order to solve the above problems, the present invention provides a tempering furnace for contactless production and processing of mobile phone tempered films, including a main furnace 1 and a hanging frame 2. In some preferred embodiments, it also includes a preheating furnace 3 and a bracket for installation and sliding; specifically, the preheating furnace 3 is provided on the track on the bracket, and the main furnace 1 is provided under the track. The preheating furnace 3 can be moved along the track to the top of the main furnace 1. The preheating furnace 3 and the main furnace 1 are both provided with a cover 4, which is a prior art for closing the opening during operation. Preferably, a hoisting mechanism 5 is also integrated in the preheating furnace 3 for hoisting the hanging frame 2, which is also a prior art and will not be repeated in this embodiment. In some other embodiments, the preheating furnace 3 and the main furnace 1 can also be a split independent structure, and the hanging frame 2 is hoisted and transferred by an independent hoisting mechanism 5. In some production processes, the preheating furnace 3 may not be provided for preheating, and the glass substrate may be directly immersed and tempered.

[0041] Please see attached Figure 2 The hanging frame 2 is a steel frame structure that is conducive to the immersion of the melt, including a tempered area 21 and an impurity bin 22. The tempered area 21 is used to place objects to be tempered, such as tempered film glass substrates for mobile phones. In this embodiment, the glass substrates can be stacked in corresponding placement baskets, and then a plurality of placement baskets are sequentially mounted in the tempered area 21. In some embodiments, a plurality of placement baskets for directly placing glass substrates are fixedly arranged in the tempered area 21. The difference between the two is only that the loading and unloading methods of the glass substrates are different, and both are prior arts.

[0042] Please see attached Figure 3The impurity bin 22 of the hanging frame 2 is located below the tempered area 21 and is a chamber structure composed of a filter screen 222, wherein the impurity bin 22 has a plurality of movable filter plates 221 on one side facing the tempered area 21, and the forward projection of the tempered area 21 on the impurity bin 22 is located inside the tempered area 21, ensuring that the glass fragments generated in the tempered area 21 can be deposited into the impurity bin 22 under the action of gravity; see the attached Figure 4 When the adjacent movable filter plates 221 are attached to each other, the impurity bin 22 is in an isolated state surrounded by the filter screen 222, and the impurities in the impurity bin 22 are isolated in the impurity bin 22. Please refer to the attached Figure 3 When there is a gap between adjacent movable filter plates 221 that is larger than the size of the impurities, it is in an open state. Impurities can follow the liquid in and out of the impurity bin 22 under the flow of liquid, or settle on the filter screen 222 at the bottom of the impurity bin 22 under the influence of its own weight. In some embodiments, the side wall of the impurity bin 22 can be a solid plate structure.

[0043] Please see attached Figure 5 The present invention is further provided with a driving member 6 for controlling the rotation of the movable filter plate 221. Specifically, the driving member 6 includes an active member 61 and a driven member 62. The driven member 62 is a gear provided at one end of the rotating shaft of the movable filter plate 221. The gears of adjacent movable filter plates 221 are meshed with each other. The active member 61 is provided on the main furnace 1. The active member 61 can be a stepping motor, which can directly drive the movable filter plate 221 to rotate or can drive the movable filter plate 221 to rotate through a gear set. The cooperation between the active member 61 and the driven member 62 can also be a connecting rod motion structure, and the driving methods thereof are all prior arts.

[0044] In the usage of the present invention, in the initial state, the movable filter plate 221 of the impurity bin of the hanging frame 2 is in a fully open state, that is, the movable filter plate 221 is perpendicular to the bottom of the impurity bin 22, and the glass substrate is located in the tempering area 21. The pre-treated hanging frame 2 is hoisted to the top of the main furnace 1 and placed in. After placement, the gear on one of the movable filter plates 221 is meshed with the gear on the main furnace 1, and the tempered melt in the main furnace 1 immerses the hanging frame 2. After the hoisting mechanism 5 is separated from the hanging frame 2, the baffle 4 is covered on the main furnace 1. When the defective glass substrate in the tempering area 21 cannot withstand the stress and breaks, its debris will gradually settle downwards during the long tempering process, and finally pass through the gap between the movable filter plates 221 and fall on the bottom of the impurity bin 22 in the open state. When the tempering time is over, the baffle 4 is opened and the hanging frame 2 is ready to be lifted out. In order to prevent the hanging frame 2 from moving in the melt and stirring the liquid, so that impurities such as glass debris in the impurity bin 22 float into the tempering area 21 and scratch the glass substrate, the active member 61 is started to drive the movable filter plate 221 to rotate, and the side walls of the adjacent movable filter plates 221 fit each other. At this time, the filter screen 222 parallel to the bottom makes the impurity bin 22 in an isolated state, and the tempered melt can freely enter and exit through the filter holes of the filter screen 222 and the movable filter plate 221, while the impurities such as debris precipitated in the impurity bin 22 are isolated in the impurity bin 22 to avoid invading the tempering area 21 and damaging the glass substrate; in subsequent processing, the glass debris in the impurity bin 22 can be removed after the glass substrate is unloaded.

[0045] It should be understood that in order to ensure the stability of the movable filter plate 221, there is friction between the shaft of the movable filter plate 221 and the installation position of the hanging frame 2, which can avoid rotation due to the push of the fluid, and the active member 61 can provide a torque much greater than the fluid, thereby ensuring the stability of the state. In some preferred embodiments, the rotation of the movable filter plate 221 can also be prevented by means of a spring pin, such as a ball connected to a spring is provided on the side wall of the hanging frame 2, and the ball can be embedded in the corresponding limiting hole on the gear side wall on the shaft of the movable filter plate 221 under the action of the spring, thereby providing corresponding resistance to the rotation of the movable filter plate 221, and under the large driving force provided by the active member 61, the spring will be compressed to make the ball disengage from the limiting hole, and the movable filter plate 221 can rotate accordingly. This is all prior art.

[0046] It should be noted that the hanging frame 2 of the contactless tempered film production and processing tempered furnace of the present invention includes a tempered area 21 and an impurity bin 22. The movable filter plate 221 on the impurity bin 22 has an open state and an isolated state. In the open state, impurities such as glass debris generated by the glass substrate in the tempered area 21 can pass through the movable filter plate 221 and be deposited inside the impurity bin 22. When the tempering process is completed and the hanging frame 2 needs to be evacuated from the tempered melt, the movable filter plate 221 can be switched to an isolated state, so that impurities such as glass debris in the impurity bin 22 are restricted to flow in the impurity bin 22, thereby preventing the glass debris generated during the tempering process from contacting and scratching the glass substrate in the tempered area 21. At the same time, the glass debris and the like can be taken away from the tempered melt in the main furnace 1 along with the hanging frame 2, thereby realizing contactless prevention of the melt, improving the ability to deal with glass breakage during the tempering process, and effectively preventing the tempered melt from being contaminated.

[0047] Example 2

[0048] Although the tempering furnace for the production and processing of the contactless mobile phone tempered film of the present invention can take the debris generated in the glass tempering process out of the main furnace 1 without human intervention, after the tempering is completed, when the hanging frame 2 gradually leaves the tempered melt, if there are new fragments or impurities suspended in the melt, they cannot be effectively removed. In order to solve the above problem, in this embodiment, the outer diameter of the impurity bin 22 is the same as the inner diameter of the cavity of the main furnace 1, that is, the four sides of the impurity bin 22 of the hanging frame 2 can be moved downward in contact with the inner wall of the cavity of the main furnace 1; please refer to the attached Figure 6 , attached Figure 6 A hanging frame 2 with supporting legs is also shown, and a variable filter plate 223 is provided at the bottom of the impurity bin 22. The variable filter plate 223 can be of the same structure as the movable filter plate 221. Similarly, the filter net 222 can be composed of a plurality of the variable filter plates 223, and like the driving member 6 of the movable filter plate 221, a driving member 6 is also provided to drive the rotation of the variable filter plate 223, which will not be repeated here.

[0049] Please see attached Figure 7 , attached Figure 7The state of impurity distribution is also shown. It should be noted that: in this embodiment, when the hanging frame 2 enters the main furnace 1, since the impurity bin 22 fits the inner wall of the main furnace 1, the molten liquid in the main furnace 1 needs to first pass through the filter screen 222 composed of the variable filter plate 223, and then pass through the movable filter plate 221, and then gradually immerse the hanging frame 2. Therefore, each time the glass substrate is tempered, the molten liquid in the main furnace 1 can be filtered once, and the original impurities in the furnace body are separated from the tempering area 21 to prevent impurities from affecting ion exchange during the tempering process. Preferably, the filter screen 222 in this embodiment is a variable filter plate 223. During the entire entry process of the hanging frame 2, the movable filter plate 221 is always in an isolated state, and the variable filter plate 223 is in a passage state, so that impurities that may exist in the main furnace 1 can enter the movable filter plate 221. Between the filter plate 221 and the variable filter plate 223, when the hanging frame 2 enters the bottom of the main furnace 1, the active parts 61 and the corresponding driven parts 62 for driving the movable filter plate 221 and the variable filter plate 223 respectively engage with each other, and the variable filter plate 223 is first switched to the filtrate state to prevent the impurities that previously entered the impurity bin 22 from being freed from the area outside the impurity bin 22. After a certain period of time, the disturbance in the main furnace 1 caused by the entry of the hanging frame 2 disappears, and the movable filter plate 221 is switched to the open state, so that the impurity bin 22 is in a state of receiving the impurities generated during the tempering process. After the tempering is completed, the impurity bin 22 can take the original impurities in the melt of the main furnace 1 away from the main furnace 1 together with the newly generated impurities. Therefore, the tempering furnace for the production and processing of the contactless mobile phone tempered film of the present invention can not only isolate the influence of the original pollutants in the main furnace 1, but also further clean the original melt in the cavity of the main furnace 1.

[0050] Please see attached Figure 8 In some preferred embodiments, a filter partition 224 is further provided between the movable filter plate 221 and the variable filter plate 223. The filter partition 224 separates the impurity bin 22 into two upper and lower cavities. The upper cavity is used to receive newly generated impurities, while the lower cavity is used to isolate and collect the original impurities. The advantage is that when the original impurities do not have the sedimentation ability, the filter partition 224 can prevent them from floating to the tempering area 21 and hindering the tempering process of ion exchange.

[0051] Example 3

[0052] In order to further effectively clean the existing melt, please refer to the attached Fig. 9In this embodiment, a longitudinal partition 225 is provided in the impurity bin 22. When there is a filter partition 224 in the impurity bin 22, one end of the longitudinal partition 225 is connected to the filter partition 224, and the other end is connected to the filter screen 222 below. On the filter screen 222 at the bottom of the impurity bin 22, a liquid inlet pump 226 is provided on one side of the longitudinal partition 225, and a liquid outlet pump 227 is provided on the other side. It should be understood that when the liquid inlet pump 226 and the liquid outlet pump 227 are working, the melt on both sides of the filter screen 222 can flow, and when they are not working, the melt does not flow, that is, the liquid inlet pump 226 and the liquid outlet pump 227 in this embodiment are another structural form of the variable filter plate 223 of the present invention. The liquid inlet pump 226 and the liquid outlet pump 227 can be vane pumps, gear pumps, etc., and their drive can also be driven by a drive motor set on the main furnace 1 through a gear shaft. In some embodiments, when the filter partition 224 is absent, one end of the longitudinal partition 225 is located on the filter screen 222, and the other end is located between the movable filter plates 221. When the movable filter plates 221 are in an isolated state, the longitudinal partition 225 divides the impurity bin 22 into two left and right compartments.

[0053] When the liquid inlet pump 226 and the liquid outlet pump 227 are working, the melt below the filter screen 222 carries impurities from the liquid inlet pump 226 into the impurity bin 22, while the melt in the impurity bin 22 flows back to the melt outside the filter screen 222 through the liquid outlet pump 227. The liquid inlet pump 226 and the liquid outlet pump 227 can accelerate the flow of the liquid and increase the disturbance of the liquid below the filter, so that the impurities in the liquid can smoothly enter the impurity bin 22, realizing active cleaning, which greatly improves the cleaning effect of the original melt. It should be noted that the above is a preferred implementation scheme, and in some embodiments, only setting the liquid inlet pump 226 can also relatively improve the efficiency of the impurity bin 22 in collecting impurities.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the principle of the present invention. These improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. A tempering furnace for the production and processing of contactless mobile phone tempered films, comprising a main furnace and a hanging frame; the main furnace stores tempering melt for soaking the object to be tempered, and the hanging frame can carry the object to be tempered in and out of the main furnace; characterized in that: The hanging frame includes a tempered area and an impurity bin; the tempered area is used to load objects to be tempered, and the impurity bin is located directly below the tempered area; the bottom of the impurity bin is a filter net, and the impurity bin is provided with a movable filter plate directly opposite the tempered area; the movable filter plate is switched to an open state or an isolated state under the drive of a driving member, the open state means that substances can pass through the movable filter plate without passing through the filter holes on the movable filter plate, and the isolated state means that only substances that can pass through the filter holes are allowed to pass through the movable filter plate.

2. The tempering furnace for producing and processing the contactless mobile phone tempered film according to claim 1 is characterized in that: The projection of the tempered zone on the impurity bin is located inside the tempered zone.

3. The tempering furnace for producing and processing the contactless mobile phone tempered film according to claim 1, characterized in that: The driving member comprises an active member and a driven member, wherein the active member is arranged on the main furnace, and the driven member is arranged on the movable filter plate, and the active member drives the movable filter plate to rotate by driving the driven member.

4. The tempering furnace for producing and processing contactless mobile phone tempered film according to claim 3, characterized in that: There are several groups of movable filter plates, the driven members on each movable filter plate are gears, and adjacent driven members are meshed for transmission.

5. The tempering furnace for producing and processing contactless mobile phone tempered film according to claim 1, characterized in that: When the impurity bin is located in the main furnace, the outer surface of the impurity bin is in contact with the inner surface of the cavity of the main furnace.

6. The tempering furnace for producing and processing contactless mobile phone tempered film according to claim 5, characterized in that: A variable filter plate is provided at the bottom of the impurity bin, and the variable filter plate is used to put the bottom plate of the impurity bin in a passage state or a filtrate state. The passage state is that substances can pass through both sides of the bottom of the impurity bin, and the filtrate state is that only substances that can pass through the filter holes on the bottom of the impurity bin are allowed to pass through both sides of the bottom of the impurity bin.

7. The tempering furnace for producing and processing the contactless mobile phone tempered film according to claim 6, characterized in that: When the hanging frame enters the cavity of the main furnace, the bottom plate of the impurity bin is in a passage state, and the movable filter plate is in an isolation state.

8. The tempering furnace for producing and processing the contactless mobile phone tempered film according to claim 6, characterized in that: A filtering partition is also provided between the movable filter plate and the variable filter plate.

9. The tempering furnace for producing and processing contactless mobile phone tempered film according to any one of claims 6 to 8, characterized in that: A liquid inlet pump is arranged on the filter screen at the bottom of the impurity bin.

10. The tempering furnace for producing and processing contactless mobile phone tempered glass according to claim 9, characterized in that: A longitudinal partition is arranged in the impurity bin, the liquid inlet pump is arranged on the filter screen on one side of the longitudinal partition, and a liquid outlet pump is arranged on the other side.

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