阅读说明：本技术 大尺寸工业微波烘干设备门体结构 (Door body structure of large-size industrial microwave drying equipment ) 是由 周永华 王红霞 陈翔宇 苟牛红 庞登怀 蒋发根 金军 徐静 于 2019-09-25 设计创作，主要内容包括：一种大尺寸工业微波烘干设备门体结构,包括门框,所述门框顶部设有往复运动的驱动组件、传动组件,所述驱动组件与所述传动组件分别设有两组,两组所述驱动组件相对运动,并分别设置在所述门框两端。所述门框上还设有门体夹紧组件、第一侧拉门、第二侧拉门；两组所述传动组件一端分别与两组所述驱动组件固定连接,另一端分别与所述第一侧拉门和所述第二侧拉门连接；所述门体夹紧组件一端与所述第一侧拉门固定连接,另一端用于第一侧拉门与第二侧拉门闭合夹紧。两组反向运动的驱动组件驱动第一侧拉门与第二侧拉门,使得门的移动轨迹缩短,降低了各部件强度、精度等性能要求。其次门的尺寸减小,制作难度降低,不易变形,密封更易保证。(The door body structure of the large-size industrial microwave drying equipment comprises a door frame, wherein a driving assembly and a transmission assembly which move in a reciprocating mode are arranged at the top of the door frame, the driving assembly and the transmission assembly are respectively provided with two groups, two groups of driving assemblies move relatively and are respectively arranged at two ends of the door frame. The door frame is also provided with a door body clamping assembly, a first side sliding door and a second side sliding door; one end of each of the two groups of transmission assemblies is fixedly connected with the two groups of driving assemblies, and the other end of each of the two groups of transmission assemblies is connected with the first side sliding door and the second side sliding door; one end of the door body clamping assembly is fixedly connected with the first side sliding door, and the other end of the door body clamping assembly is used for closing and clamping the first side sliding door and the second side sliding door. Two sets of drive assemblies moving in opposite directions drive the first side sliding door and the second side sliding door, so that the moving track of the door is shortened, and the performance requirements of strength, precision and the like of each part are reduced. The size of the secondary door is reduced, the manufacturing difficulty is reduced, the secondary door is not easy to deform, and the sealing is easier to guarantee.)

1. A large-size industrial microwave drying equipment door body structure comprises a door frame, wherein the top of the door frame is provided with a driving assembly and a transmission assembly which move in a reciprocating manner, and the door body structure is characterized in that the driving assembly and the transmission assembly are respectively provided with two groups, and the two groups of driving assemblies move relatively and are respectively arranged at two ends of the door frame;

the door frame is also provided with a side sliding door and a door body clamping assembly, and the side sliding door comprises a first side sliding door and a second side sliding door;

one end of each of the two groups of transmission assemblies is fixedly connected with the two groups of driving assemblies, and the other end of each of the two groups of transmission assemblies is connected with the first side sliding door and the second side sliding door;

one end of the door body clamping assembly is fixedly connected with the first side sliding door, and the other end of the door body clamping assembly is clamped when the first side sliding door and the second side sliding door are closed.

2. The door body structure of large-size industrial microwave drying equipment according to claim 1, wherein the door body clamping assembly comprises a connecting plate, an adapter plate, a clamping cylinder, a gas claw and a hook-shaped clamping arm, the connecting plate is fixedly connected with one side of the first side sliding door close to the second side sliding door, the clamping cylinder is fixedly installed on the connecting plate, and the running direction of the clamping cylinder is perpendicular to the moving direction of the side sliding door; one surface of the adapter plate is connected with one side of the clamping cylinder in the extending direction; the air claw is fixedly arranged on the adapter plate, and the movement direction of the air claw is consistent with the movement direction of the side sliding door; the hook-shaped clamping arm is connected with the gas claw, and the end part of the hook-shaped clamping arm extends out along the running direction of the gas claw and is matched with the side sliding door.

3. The door body structure of the large-size industrial microwave drying equipment according to claim 1, wherein at least 1 door body clamping assembly is arranged.

4. The door body structure of the large-size industrial microwave drying equipment according to claim 1, further comprising a plurality of door body pressing assemblies, wherein one end of each pressing assembly is fixedly connected with the door frame, and the other end of each pressing assembly pushes the first side sliding door and the second side sliding door.

5. The door body structure of large-size industrial microwave drying equipment according to claim 1, characterized in that the door body structure further comprises a plurality of inner guide assemblies, each inner guide assembly comprises a base, a guide structure mounted on the base, and a guide bearing mounted on the guide structure, the base is fixedly mounted on the door frame at intervals along the running direction of the side sliding door, and the guide bearings are in contact with the sealing surfaces of the first side sliding door and the second side sliding door.

6. The door body structure of large-size industrial microwave drying equipment according to claim 5, characterized in that the guide structure comprises a guide sleeve, a guide shaft, a bearing mounting plate and an elastic member, the guide sleeve is fixed on one side of the base, one end of the guide shaft is embedded in the guide sleeve, the other end of the guide shaft is fixedly connected with one side of the bearing mounting plate, and the elastic member is sleeved on the guide shaft and is located between the bearing mounting plate and the guide sleeve.

7. The door body structure of the large-size industrial microwave drying equipment according to claim 1, wherein a groove is formed in one surface of the first side sliding door, which is close to the second side sliding door.

8. The door body structure of large-size industrial microwave drying equipment according to claim 1, wherein the door frame is provided with a groove on a matching surface with the first side sliding door and the second side sliding door.

9. A large-size industrial microwave drying equipment, which is characterized in that the door body structure of the large-size industrial microwave drying equipment is provided according to any one of claims 1 to 8, and the large-size industrial microwave drying equipment further comprises an anti-deformation assembly which is arranged on the side sliding door.

Technical Field

The invention belongs to the field of microwave drying equipment, and is used for automatically drying a cast 3D printing sand core, in particular to automatic real-time drying after flow coating and dip coating of a 3D printing intelligent automatic casting sand core.

Background

Traditional casting psammitolite is dried through equipment such as natural gas drying kiln, and not only drying efficiency is low, back psammitolite surface strength is low after drying, and can produce various dust impurity etc. among the drying process, not only pollutes the mill environment, also has certain harm to the personnel health of long-term operation moreover. At present, along with the application of a casting 3D printing technology, microwave drying is applied to casting sand core drying, and the existing sand core microwave drying equipment generally comprises the following parts: an external conveying roller way, a microwave drying furnace body, an internal conveying roller way and related matched pumping and exhausting equipment. Compared with the traditional natural gas kiln, the existing microwave equipment has the following characteristics: the microwave drying efficiency is high, the energy consumption is low, the surface strength of the sand core is high, the operation environment of a factory is improved, and the like. However, for microwave drying equipment, microwave leakage is an important factor restricting its wide application, especially microwave leakage at the door of microwave oven, and since there is a great difference between industrial microwave oven and domestic microwave oven in terms of volume and frequency band of microwave, it is difficult to implement microwave leakage prevention measures once and for all.

Through retrieval, patent CN201810960370.8 "a side sliding door sealed industrial microwave drying equipment", the relevant content is that the side sliding door is fixed through the furnace door suspension mechanism, and the side sliding door is moved and is compressed tightly and sealed, thereby microwave leakage prevention of the microwave drying equipment is realized, however, in the equipment, because the door body is opened singly, for a large-size sand core, the size of the furnace door can be correspondingly increased, the processing cost and the processing difficulty of the door body can be increased, and after the long-time operation and compression process, the local deformation condition of the door body can occur, and because the single side door opening can lead to the deviation of the equipment door body to one side, the whole beauty and harmony of the equipment is poor, when the size of the equipment door opening is larger, the whole occupied space of the equipment can be increased, and.

Disclosure of Invention

The invention effectively improves and solves the problems, especially develops a door body structure and equipment of large-size industrial microwave drying equipment for microwave drying of large-size sand cores, can effectively solve microwave leakage of the door body, reduces processing cost and difficulty, and improves the attractiveness and harmony of the equipment and the whole-line layout control performance.

The technical scheme adopted by the invention for solving the technical problems is as follows: a large-size industrial microwave drying equipment door body structure comprises a door frame, wherein the top of the door frame is provided with a driving assembly and a transmission assembly which move in a reciprocating manner, the driving assembly and the transmission assembly are respectively provided with two groups, and the two groups of driving assemblies move relatively and are respectively arranged at two ends of the door frame; the door frame is also provided with a side sliding door and a door body clamping assembly, and the side sliding door comprises a first side sliding door and a second side sliding door; one end of each of the two groups of transmission assemblies is fixedly connected with the two groups of driving assemblies, and the other end of each of the two groups of transmission assemblies is connected with the first side sliding door and the second side sliding door; one end of the door body clamping assembly is fixedly connected with the first side sliding door, and the other end of the door body clamping assembly is used for clamping the second side sliding door when the first side sliding door is in closed contact with the second side sliding door.

Furthermore, the door body clamping assembly comprises a connecting plate, an adapter plate, a clamping cylinder, a gas claw and a hook-shaped clamping arm, the connecting plate is fixedly connected with one side, close to the second side sliding door, of the first side sliding door, the clamping cylinder is fixedly installed on the connecting plate, and the running direction of the clamping cylinder is perpendicular to the moving direction of the side sliding door; one surface of the adapter plate is connected with one side of the clamping cylinder in the extending direction; the air claw is fixedly arranged on the adapter plate, and the movement direction of the air claw is consistent with the movement direction of the side sliding door; the hook-shaped clamping arm is connected with the air claw, and the hook-shaped end part extends out along the running direction of the air claw and is matched with the side sliding door.

Further, the door body clamping assembly is at least provided with 1 door body clamping assembly.

And the door body pressing assembly is arranged on the door frame, one end of each pressing assembly is fixedly connected with the door frame, and the other end of each pressing assembly is in contact with the first side sliding door and the second side sliding door.

The door frame is characterized by further comprising a plurality of inner guide assemblies, each inner guide assembly comprises a base, a guide structure and a guide bearing, the guide structure is installed on the base, the guide bearings are installed on the guide structure, the base is fixedly installed on the door frame at intervals along the running direction of the side sliding door, and the guide bearings are in contact with the sealing surfaces of the first side sliding door and the second side sliding door.

Furthermore, the guide structure comprises a guide sleeve, a guide shaft, a bearing mounting plate and an elastic piece, the guide sleeve is fixed on one side of the base, one end of the guide shaft is embedded into the guide sleeve, the other end of the guide shaft is connected with one side of the bearing mounting plate, and the elastic piece is sleeved on the guide shaft and is positioned between the bearing mounting plate and the guide sleeve.

Furthermore, a groove is formed in one surface, close to the second side sliding door, of the first side sliding door.

Further, the door frame is provided with a groove on a matching surface with the first side sliding door and the second side sliding door.

A large-size industrial microwave drying equipment is provided with the door body structure of the large-size industrial microwave drying equipment, and further comprises an anti-deformation assembly arranged on the side sliding door.

According to the technical scheme, the side sliding door has the beneficial effects that the side sliding door adopts a double-opening door, so that the size of the door body can be effectively reduced, the manufacturing difficulty is reduced, the deformation is reduced, and the sealing is easier to ensure. Secondly press from both sides tightly, the door body compresses tightly compressing tightly of subassembly offside sliding door and door frame and the removal direction of interior direction subassembly to two opening the door through door body clamping component, ensures that the side sliding door removes smoothly, the sealed more reliable of door and door frame.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of a door body structure of a large-size industrial microwave drying device disclosed by the invention;

FIG. 2 is a schematic partial structure diagram of a door body clamping assembly according to an embodiment of the door body structure of the large-size industrial microwave drying equipment disclosed by the invention;

FIG. 3 is a schematic side view of a door body clamping assembly according to one embodiment of the disclosed large-size industrial microwave drying equipment door body structure;

FIG. 4 is a schematic partial structure diagram of a door body pressing assembly according to an embodiment of the door body structure of the large-size industrial microwave drying equipment disclosed by the invention;

FIG. 5 is a schematic structural diagram of one embodiment of a door body structure of a large-size industrial microwave drying device according to the present disclosure;

FIG. 6 is a partial schematic view of an inner guide assembly according to one embodiment of the disclosed door structure of a large-sized industrial microwave drying device;

FIG. 7 is a schematic axial side structure view of a guide assembly in one embodiment of a large-sized industrial microwave drying equipment door body structure according to the present disclosure;

FIG. 8 is a schematic view of a sealing structure of one embodiment of a door body structure of a large-size industrial microwave drying device according to the present disclosure;

FIG. 9 is a schematic structural diagram of an embodiment of a large-sized industrial microwave drying apparatus according to the present disclosure;

in the drawings: 1-a door frame, 11-a sealing shielding strip, 10-a driving assembly, 20-a transmission assembly, 30-a first side sliding door, 40-a second side sliding door, 41-a sealing strip, 50-a door body clamping assembly, 51-a connecting plate, 52-an adapter plate, 53-a clamping cylinder, 54-an air claw, 55-a hook-type clamping arm, 60-a door body pressing assembly, 61-a buffer plate, 62-a bottom plate, 63-a pressing cylinder, 70-an inner guide assembly, 71-a base, 72-a guide structure, 720-a shaft sleeve, 721-an elastic element, 722-a guide shaft, 73-a guide bearing, 80-an upper outer guide assembly, 90-a lower outer guide assembly, 100-a limiting assembly and 110-an anti-deformation assembly.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments. As used herein, the term "secured" may be mounted, welded, riveted, etc., and the term "connected" may be directly connected, indirectly connected, and the like for the purpose of illustrating the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, the door body structure of the large-size industrial microwave drying equipment comprises a door frame, wherein the top of the door frame is provided with a driving assembly and a transmission assembly which move in a reciprocating manner, the driving assembly and the transmission assembly are respectively provided with two groups, and the two groups of driving assemblies move relatively and are respectively arranged at two ends of the door frame; the door frame is also provided with a side sliding door and a door body clamping assembly, and the side sliding door comprises a first side sliding door and a second side sliding door; one end of each of the two groups of transmission assemblies is fixedly connected with the two groups of driving assemblies, and the other end of each of the two groups of transmission assemblies is connected with the first movable door and the second side sliding door respectively; one end of the door body clamping assembly is fixedly connected with the first side sliding door, and the other end of the door body clamping assembly is used for clamping the first side sliding door and the second side sliding door when the first side sliding door and the second side sliding door are in closed contact.

According to the door body structure of the large-size industrial microwave drying equipment, the side sliding door is divided into the first side sliding door and the second side sliding door, and the two sets of driving assemblies in reverse motion are respectively connected with the first side sliding door and the second side sliding door, so that the moving track of the door is firstly shortened, and the strength and precision requirements of corresponding transmission parts, guide assemblies and the like are reduced. Secondly, the size of door reduces relatively, reduces the preparation degree of difficulty and the deflection of each process, more is favorable to the removal of door to with the sealed easier assurance of door frame, the microwave is revealed and is changeed control.

The door body structure of the large-size industrial microwave drying equipment is described below with reference to specific embodiments, so as to further understand the inventive concept of the door body structure of the large-size industrial microwave drying equipment.

Referring to the attached drawing 1, the door body structure of the large-size industrial microwave drying equipment comprises a door frame 1, wherein the top of the door frame 1 is provided with a driving assembly 10 and a transmission assembly 20 which move in a reciprocating manner, the driving assembly and the transmission assembly are respectively provided with two groups, and the two groups of driving assemblies move in opposite directions and are respectively arranged at two ends of the door frame 1. The purpose is to provide a power source for the side sliding door. Specifically, the door frame 1 is further provided with a side sliding door and a door body clamping assembly 50, and the side sliding door comprises a first side sliding door 30 and a second side sliding door 40. One end of each of the two sets of transmission assemblies 20 is fixedly connected to the two sets of driving assemblies 10, and the other end of each of the two sets of transmission assemblies 20 is connected to the first side sliding door 30 and the second side sliding door 40, so that the first side sliding door 30 and the second side sliding door 40 can move back and forth on the door frame under the driving of the transmission assemblies and the driving assemblies, and thus, the two-way opening and closing is realized.

Further, one end of the door body clamping assembly 50 is fixedly connected with the first side sliding door 30, and the other end of the door body clamping assembly is used for clamping the first side sliding door and the second side sliding door when the first side sliding door and the second side sliding door are in closed contact. The main purpose is to make up the gap when the first side sliding door 30 and the second side sliding door 40 are closed, so that the closed gap is smaller, and the side sliding door is sealed and guaranteed.

Referring to fig. 2 and 3, the door body clamping assembly 50 includes a connecting plate 51, an adapter plate 52, a clamping cylinder 53, an air claw 54 and a hook-type clamping arm 55. The connecting plate 51 is fixedly connected to the edge of the first side sliding door 30 close to the second side sliding door 40. The clamping cylinder 53 is fixedly arranged on the connecting plate, and the running direction of the clamping cylinder is vertical to the moving direction of the side sliding door. One surface of the adapter plate 52 is connected with one side of the extending direction of the clamping cylinder 53. The air claw 54 is fixedly installed on the adapter plate 53, and the movement direction of the air claw is consistent with the movement direction of the side sliding door. One end of the hook-shaped clamping arm 55 is connected with the air claw, and the other end of the hook-shaped clamping arm extends along the running direction of the air claw to be matched with the side sliding door.

In an embodiment, the connecting plate 51 may be designed to be L-shaped, one side of which is fixedly connected to the first side sliding door 30, and the other side of which is fixedly connected to the clamping cylinder 53. The adapter plate 52 is Z-shaped, one side of two parallel sides is connected with the clamping cylinder, and the other side is connected with the air claw. And a gap is arranged between one side of the connecting plate 51 connected with the clamping cylinder 53 and the side sliding door, so that the clamping cylinder 53 can conveniently move to push out the adapter plate 52, the air claw 54 and the hook-shaped clamping arm 55 to enter a clamping position. It should be noted that the specific shapes of the connecting plate and the adapter plate are not limited, and any structural function capable of realizing the above functions may be adopted.

In an embodiment, a groove is formed in the front surface of the second side sliding door 40, the hook-shaped clamp arm 55 is provided with a hook matched with the groove, after the first side sliding door and the second side sliding door are closed, the hook-shaped clamp arm 55 can approach the first side sliding door 30 under the contraction and closing action of the air claw 54, and the hook matched with the groove of the second side sliding door 40 hooks the second side sliding door to approach the first side sliding door, so as to reduce a gap between the two doors. It should be noted that two hook-type clamp arms 55 may also be provided, and are respectively matched with the first side sliding door 30 and the second side sliding door 40, and when the air claw 54 is contracted, the two hook-type clamp arms hook the first side sliding door 30 and the second side sliding door 40 to be tensioned in opposite directions, so as to ensure that the first side sliding door and the second side sliding door are clamped tightly.

In an embodiment, the clamping cylinder may be a cylinder with a guide rod, after the first side sliding door 30 and the second side sliding door 40 are closed, the clamping cylinder 53 acts to extend out of the guide rod, and the guide rod acts on the adapter plate 52 to move the adapter plate toward the side sliding door, so that the clamping jaw and the hook-shaped clamping arm move to the clamping position, thereby increasing the reliability of sealing. It should be noted that the type of the clamping jaw is not limited, and any part capable of achieving the functions of contraction and extension can be used.

Furthermore, according to the height of the side sliding door, at least 1 door body clamping assembly is arranged, and if the height of the side sliding door is very high. In order to ensure the uniform clamping gap, the clamping assemblies can be arranged in a plurality of numbers, and the illustrated embodiment is provided with three positions, namely, an upper position, a middle position and a lower position.

Referring to fig. 1 and 4, in an embodiment, the door body structure of the large-sized industrial microwave drying equipment further includes a plurality of door body pressing assemblies 60, one end of each of the pressing assemblies is fixedly connected to the door frame 1, and the other end of each of the pressing assemblies is in contact with the first side sliding door 30 and the second side sliding door 40. Specifically, the pressing assembly 60 comprises a buffer plate 61, a pressing cylinder 62 and a bracket 63, wherein one end of the bracket 63 is fixedly installed on the outer side of the door frame 1, and the other end of the bracket 63 is connected with the pressing cylinder 62. The protruding end of the pressing cylinder 62 is matched with one surface of the buffer plate. When the side sliding door is closed in place, the pressing cylinder 62 extends out, and the buffer plate 61 is ejected out and pressed on the side sliding door. The first side sliding door and the second side sliding door are integrally pressed towards the door frame. The door body pressing assembly can be provided with a plurality of groups, the optimal upper position and the optimal lower position of the outermost side of each door are respectively provided with one group, and the upper position and the lower position of the gap after the two doors are closed are respectively provided with one group.

Referring to fig. 5, 6 and 7, in an embodiment, the door body structure of the large-sized industrial microwave drying equipment further includes a plurality of inner guide assemblies 70, each of which includes a base 71, a guide structure 72 mounted on the base, and a guide bearing 73 mounted on the guide structure. The base 71 is fixedly mounted on the door frame 1 at intervals along the running direction of the side sliding door, and the guide bearing 73 is in contact with the sealing surfaces (surfaces attached to the door frame) of the first side sliding door 30 and the second side sliding door 40. Specifically, the guide structure 72 includes a guide sleeve 720, a guide shaft 721, a bearing mounting plate 722, and an elastic member 723. The guide sleeve 720 is fixed on one side of the base 71, one end of the guide shaft 721 is embedded in the guide sleeve 720, the other end of the guide shaft is fixedly connected with one side of the bearing mounting plate 722, and the elastic member 723 is sleeved on the guide shaft 721 and is positioned between the bearing mounting plate 722 and the guide sleeve 720. Note that the outer circumferential surface of the guide bearing 73 protrudes to the outermost side of the bearing mounting plate. Therefore, the inner side surface of the side sliding door is in contact with the guide bearing for guiding in the moving process, interference friction between the side sliding door and the door frame can be avoided, and sliding is smoother. When the side sliding door is closed in place and the door body pressing assembly 60 presses the side sliding door, the bearing 73, the bearing connecting plate 722 and the guide shaft 721 integrally move towards the pressing direction of the side sliding door under the action of the elastic body 723. On one hand, the elastic member 723 is in a compression state, when the side sliding door needs to be opened, the door body pressing assembly 60 is loosened, the side sliding door can be opened quickly and smoothly under the action of the elastic force of the elastic member 723 and the outward elastic acting force, and clamping stagnation caused by pressing is avoided. On the other hand, when the side sliding door is compressed, the side sliding door moves integrally in the compressing direction, and the side sliding door is more favorable for sealing the door and the door frame.

Referring to fig. 8, the second side-sliding door 40 is provided with a groove at a side surface adjacent to the first side-sliding door 30. The doorframe 1 is provided with a groove on the mating surface with the first side sliding door 30 and the second side sliding door 40. The sealing strip 41 and the sealing shielding strip 11 are placed in the groove, and the sealing effect is achieved when the side sliding door is closed. Optimally, the size of the groove is slightly smaller than that of the sealing strip, so that the sealing strip is fastened after being installed and is not easy to fall off during working. The nesting installation can improve the installation stability and the sealing effect of the sealing strip and also prolong the service life of the sealing strip. In one embodiment, the grooves are square, semi-circular or trapezoidal in cross-section. It should be noted that the shape of the groove is not specifically limited in this embodiment, and the groove mainly plays a role of filling the sealing strip, and any other structure capable of realizing the firm installation of the sealing strip may be used. The sealing strip is not particularly limited in this embodiment, and may be rubber commonly available in the market, or may be other materials capable of sealing.

Referring to fig. 5 and 9, in an embodiment, a large-size industrial microwave drying equipment has a door body structure of any one of the large-size industrial microwave drying equipment. The large-size industrial microwave drying equipment further comprises an anti-deformation assembly 110 which is arranged on the side sliding door. Specifically, the microwave drying device further comprises an upper outer guide assembly 80, a lower outer guide assembly 90 and a buffering device 100 which are mounted on the door frame. And when the sand core tray is conveyed into the drying equipment and is in place, the side sliding door starts to act. Specifically, the driving assembly 10 drives the transmission assembly 20 to move in opposite directions, and the first side sliding door 30 and the second side sliding door 40 respectively mounted on the transmission assembly 20 perform the closing and closing actions. After running in place, the sealing strip mounted on the second side-sliding door 40 contacts the first side-sliding door 30. When the side sliding door moves to the right position, the detection signal is output, and at the moment, the driving system 10 stops running. In the moving process of the first side sliding door and the second side sliding door, the upper outer guide assembly 80, the lower outer guide assembly 90 and the inner guide assembly 70 respectively guide and limit the side sliding door, so that the side sliding door can move along a preset track in the moving process of the side sliding door. The upper outer guide assembly and the lower outer guide assembly are mounted on the connecting frame of the door frame, and the positions of the guide seats are adjusted, so that the guide bearings in the upper outer guide assembly and the lower outer guide assembly are in contact with the side sliding door moving laterally to limit the outward swinging displacement of the door in the moving process, and the door is guaranteed to move along the moving track. While a group of the inner guide assemblies 70 are always in contact with the side sliding doors, the inward offset of the doors during movement is limited by the resilience of the elastic members 723 in the inner guide assemblies. Through outside and inside spacing direction, guarantee that the side sliding door moves according to predetermined orbit reciprocating motion at the removal in-process to the side sliding door cooperation is sealed about guaranteeing, avoids the side to pull because of the sealed inefficacy problem that can't cooperate the appearance smoothly. After the first side sliding door 30 and the second side sliding door 40 are closed in a matched mode, the door body clamping assembly 50 installed on the first side sliding door clamps the first side sliding door 30 and the second side sliding door 40 tightly, so that the sealing strip 41 is compressed, a gap between the two side doors is eliminated, and microwaves are prevented from leaking from the gap. The door body clamping assembly 50 is characterized in that the hook-shaped clamping arm 55 extends into a reinforced structure of the side sliding door through the extending air claw 54, and further, the air claw contracts to drive the hook-shaped clamping arm 55 to be tensioned towards opposite directions, so that clamping and sealing of the left door body and the right door body are guaranteed. After the door body clamping assembly 50 completes the clamping action, the pressing cylinder 62 of the door body pressing assembly 60 drives the first side sliding door and the second side sliding door to move inwards (towards the door frame), so that the side sliding door is integrally matched and sealed with the sealing shielding strip 11 arranged on the door frame, the matching gap between the side sliding door and the door frame is eliminated, and the microwave leakage prevention is ensured. The side sliding door moves inwards through the pressing power provided by the pressing air cylinder 60, and during the moving process, the follow-up bearing in the transmission assembly 20 rolls inwards, and the spring is compressed, so that the pressing stroke of the side sliding door is limited, and the sealing shielding strip 11 is prevented from being damaged by overpressure. In addition, in order to prevent the deformation of the first side sliding door 30 and the second side sliding door 40 after the compression from affecting the sealing effect, the deformation preventing structures 110 are respectively installed on the first side sliding door and the second side sliding door. The deformation-preventing structure is provided with a plurality of bolts which are abutted to the easily-deformed position of the side sliding door through locking bolts, so that deformation is prevented. In the process that the door body pressing assembly 60 presses the side pulling body, the elastic parts in the transmission assembly 20 and the inner guide assembly 50 are compressed, the door body moves along the pressing direction, and the structural design also ensures the moving path and the stroke of the door body along the pressing direction. After the sand core is dried, the door body pressing assembly 60 is loosened, the elastic parts in the transmission assembly 20 and the inner guide assembly 70 are bounced open, the first side sliding door 30 and the second side sliding door 40 are separated from the door frame 1, the air claw 55 in the door body clamping assembly 50 is loosened, the first side sliding door and the second side sliding door are mutually matched and loosened, then the clamping cylinder is contracted, and the adapter plate 52, the air claw 54 and the hook-shaped clamping arm 55 move together in the direction of keeping away from the pressing direction of the side sliding door. At the moment, the driving assembly 10 starts to operate, the transmission assembly 20 operates to drive the first side sliding door 30 and the second side sliding door 40 to move in the same direction, and after the first side sliding door and the second side sliding door are operated in place, the limiting assemblies 100 arranged on the two sides of the door frame 1 perform limiting protection; after the first side sliding door and the second side sliding door are opened in place, the sand core tray is transmitted to the outside from the transmission equipment in the microwave drying furnace body, and then the next round of sand cores are sent into the microwave drying equipment from the tray, so that circulation is realized.

The double-opening door body structure is adopted, the size of the door body is reduced by increasing the number of the opened doors, the processing cost and the processing difficulty of the door body are reduced by reducing the size of the door body, the deformation of the door body is reduced, and the sealing is easier. Especially for large-size industrial microwave drying equipment, especially be applicable. Secondly, the design of the door body clamping assembly eliminates the hidden danger of microwave leakage at the butt joint of the double doors, the design and installation of the anti-deformation assembly eliminates the stress deformation of the side sliding door caused by compression, and the sealing failure caused by door deformation is avoided. The door body compresses tightly the setting of subassembly and makes the sealed more reliable of side sliding door and door frame. The design of multiple sealing structures enables the microwave drying equipment to avoid microblog leakage. The design through two divisions of doors again for the whole symmetrical structure that is of equipment, compare with the one-tenth side sliding door of equidimension and reduce occupation space, whole outward appearance is more harmonious, has more the advantage on the whole line overall arrangement of equipment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.