Bonding equipment for back plate assembly and glass of range hood

Abstract

The utility model relates to equipment for bonding a back plate assembly and glass of a range hood, which is provided with a profiling table, a pressing mechanism, a positioning assembly and a material ejecting mechanism, the back plate assembly and the glass of the range hood are stably placed on a working table through the profiling table, and the positioning of the back plate assembly and the glass is conveniently realized; and particularly, the folded plates of the back plate assembly can be inserted into the grooves, the first inserting grooves and the second inserting grooves, so that the back plate assembly can be stably placed on the profiling table, and meanwhile, the back plate assembly can be quickly positioned. In addition, the back plate assembly and the glass are pressed up and down through the pressing mechanism, so that the back plate assembly and the glass can be fully bonded through glue. Accurate positioning of the backboard assembly and the glass is achieved through the positioning assembly in the left-right direction and the front-back direction, and the accuracy and reliability of the relative bonding positions of the backboard assembly and the glass are guaranteed. And separation of the back plate assembly and the glass from the profiling table after bonding is achieved through the material ejecting mechanism, the manual material taking time is shortened, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bonding equipment, especially to a back plate component and glass bonding equipment of extractor hood. BACKGROUND

[0002] The back plate component and glass of the extractor hood are generally fixed by bonding, for example, the extractor hood structure disclosed in Chinese utility model patent No. ZL201920716204.3 (authorized publication No. CN210069986U) and Chinese utility model patent No. ZL201920656614.3 (authorized publication No. CN210241690U). In the prior art, the back plate component and glass are generally positioned manually, and then bonded. However, manual positioning is not only inefficient and wastes manpower, but also has the problem of inaccurate positioning, which affects the quality of the bonded product. In addition, one side of the back plate component has a folding plate for mounting, and the other side is used for bonding with the glass, so the positioning is difficult.

[0003] In addition, there is a problem of improper pressing during the bonding process, which cannot effectively ensure that the adhesive between the back plate component and the glass is properly bonded. In addition, due to the pressing action during the bonding process, the finished product after bonding has a certain connection force with the workbench, making it inconvenient to take out the product, and thus affecting the overall work efficiency. SUMMARY

[0004] The first technical problem to be solved by the utility model is to provide a back plate component and glass bonding equipment of extractor hood with accurate positioning.

[0005] The second technical problem to be solved by the utility model is to provide a back plate component and glass bonding equipment of extractor hood with accurate positioning and proper bonding.

[0006] The third technical problem to be solved by the utility model is to provide a back plate component and glass bonding equipment of extractor hood with accurate positioning and convenient taking.

[0007] The technical solution adopted by the utility model to solve at least one of the above technical problems is: a back plate component and glass bonding equipment of extractor hood, comprising a rack, the top of the rack being a horizontally extending workbench, characterized in that it further comprises:

[0008] The profiling table horizontally extends and is fixed on the table top of the workbench, and is used for sequentially placing the back plate assembly and glass of the range hood from bottom to top and matching the shape of the back plate assembly of the range hood. The profiling table has a first slot for inserting the first folding plate of the back plate of the range hood and a groove for embedding the boss of the back plate assembly of the range hood. A second slot for inserting the second folding plate on the boss is formed on one side of the groove.

[0009] The pressing mechanism includes a pressing plate horizontally extending and located above the profiling table and a pressing cylinder for driving the pressing plate to move up and down.

[0010] The positioning assembly includes a centering mechanism for centering the back plate assembly and glass of the range hood left and right, and a first positioning block and a second positioning block for positioning the back plate assembly and glass front and back. The first positioning block is fixed on the table top of the workbench and located on one side of the front and back of the two, and the second positioning block is located on the other side and can move front and back relative to the profiling table under the action of the positioning cylinder.

[0011] The ejection mechanism is arranged below the workbench and includes a vertical ejection rod and an ejection cylinder for driving the ejection rod to move up and down. The workbench and the profiling table are respectively provided with a first through hole for the ejection rod to pass through.

[0012] Further, the workbench is provided with floating pins which vertically extend and can vertically float under the action of downward pressure. The floating pins are at least two and can uniformly support the lower surface of the glass. During the pressing process, the upward and downward floating support of the glass by the floating pins can buffer the downward pressure of the pressing mechanism acting on the glass, so as to avoid the glass being cracked.

[0013] Further, the profiling table is uniformly provided with at least two positioning pins which respectively vertically extend and can respectively pass into the corresponding holes on the back plate assembly of the range hood. Thus, the back plate assembly can be quickly and accurately placed on the profiling table, which is beneficial to quickly positioning the back plate assembly.

[0014] Further, the centering mechanism includes a centering cylinder, a front and back sliding assembly, a left and right sliding assembly, a left and right extending connecting rod and a vertical extending centering positioning block. The centering cylinder, the front and back sliding assembly, the left and right sliding assembly and the connecting rod assembly are arranged below the workbench. The front and back sliding assembly includes a front and back extending first sliding rail and a first sliding block slidably mounted on the first sliding rail. The centering cylinder is used for driving the first sliding block to slide along the first sliding rail.

[0015] The left and right sliding assemblies are two and are arranged relative to the left and right sides of the front and back sliding assembly. Each left and right sliding assembly includes a left and right extending second sliding rail and a second sliding block slidably mounted on the second sliding rail and extending left and right.

[0016] The connecting rods are two and correspond to the left and right slide assemblies respectively, one end of each connecting rod is pivotally connected to the first sliding block, and the other end is pivotally connected to the inner side end of the second sliding block corresponding to the left and right slide assemblies, the centering positioning blocks are two and correspond to the left and right slide assemblies respectively, the lower end of each centering positioning block is fixed to the outer side end of the corresponding second sliding block, and the upper end penetrates through the second through hole on the workbench and is exposed above the table top of the workbench, and can abut against the corresponding end of the back plate assembly and the glass in the left and right directions. In this way, the first sliding block is driven to slide along the first sliding rail by the centering cylinder, thereby driving the two connecting rods on the left and right sides, respectively, the corresponding second sliding blocks are driven by the connecting rods, respectively, and finally the corresponding centering positioning blocks are driven by the second sliding blocks, thereby achieving the centering of the back plate assembly and the glass in the left and right directions.

[0017] Further, the pressing mechanism further comprises a stand fixed on the table top of the workbench, the stand comprises an upper mounting plate located at the top and extending horizontally, and vertical columns, the columns are at least two and are uniformly distributed relative to the upper mounting plate, and the upper end of each column is fixed to the upper mounting plate and the lower end is fixed to the workbench,

[0018] The pressing plate is located below the upper mounting plate, and the pressing cylinder is mounted on the upper surface of the upper mounting plate, and the piston rod of the pressing cylinder penetrates through the upper mounting plate and is fixed to the pressing plate. The setting of the stand can realize the stable installation of the pressing cylinder, and also can stably arrange the pressing plate above the profiling table.

[0019] Further, a vertical first guide rod is fixed on the upper surface of the pressing plate, and a first guide sleeve is vertically embedded in the upper mounting plate, the first guide rod penetrates through the first guide sleeve and can move up and down along the first guide sleeve. Therefore, the pressing plate can stably move up and down to ensure the pressing effect of the back plate assembly and the glass.

[0020] Further, a vertical second guide rod is fixed between the upper mounting plate and the workbench, and a guide block is fixed on the pressing plate, the free end of the guide block is connected to the second guide rod and can move back and forth along the second guide rod. Therefore, the stability of the pressing plate moving up and down can be better ensured.

[0021] Further, a handle is fixed on the upper surface of the upper mounting plate. Therefore, the equipment can be conveniently carried.

[0022] Further, the top rod is at least two, and each top rod can be uniformly supported on the lower surface of the back plate assembly of the range hood, and the top material mechanism further comprises a horizontally arranged lifting plate, the lower end of each top rod is fixed on the upper surface of the lifting plate, and the top material cylinder is arranged below the lifting plate, and the piston rod of the top material cylinder is fixed with the lower surface of the lifting plate. The lifting plate is driven to rise by the top material cylinder, so that each top rod on the lifting plate rises to support the top of the back plate assembly, and the design of the plurality of top rods can ensure the stability of the support of the back plate assembly.

[0023] Further, the top material mechanism further comprises a lower mounting plate below the lifting plate and a third guide rod, the top material cylinder is mounted on the lower mounting plate, the second guide sleeve is vertically embedded on the lifting plate, the upper end of the third guide rod is fixed with the workbench and the lower end is fixed with the lower mounting plate, and the third guide rod is arranged in the second guide sleeve and can slide up and down in the second guide sleeve. The lifting plate can stably rise and fall, and the stability of the support of the back plate assembly is better ensured.

[0024] Compared with the prior art, the utility model has the advantages that the profiling table, the pressing mechanism, the positioning assembly and the material lifting mechanism are arranged, the profiling table is used to stably place the back plate assembly and the glass of the range hood on the workbench and facilitate positioning of the two, especially the recess, the first slot and the second slot are designed for the insertion of the flaps of the back plate assembly, so that the stable placement of the back plate assembly on the profiling table is realized, and the rapid positioning of the back plate assembly is also facilitated. In addition, the pressing mechanism is used to press the back plate assembly and the glass, so that the adhesive can fully bond the two. The positioning assembly is used to accurately position the back plate assembly and the glass in the left-right direction and the front-rear direction, so as to ensure the accuracy and reliability of the relative bonding position of the two. The material lifting mechanism is used to separate the back plate assembly and the glass from the profiling table after bonding, so as to reduce the manual material taking time and improve the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic structural view of the back plate assembly and glass bonding equipment of the range hood in the embodiment of the utility model (the state of placing the back plate assembly and glass of the range hood);

[0026] Figure 2 It is a partial structural schematic view of the back plate assembly and glass bonding equipment of the range hood in the embodiment of the utility model (the state of placing the back plate assembly of the range hood);

[0027] Figure 3 It is a partial structural schematic view of the back plate assembly and glass bonding equipment of the range hood in the embodiment of the utility model in another state (the state of not placing the back plate assembly and glass of the range hood);

[0028] Figure 4 Figure 6 is a structural schematic view of the back plate assembly and glass bonding equipment in another state (neither the back plate assembly nor the glass is placed) of the range hood according to an embodiment of the present application;

[0029] Figure 5 Figure 7 is a structural schematic view in another direction of the back plate assembly and glass bonding equipment in another state (neither the back plate assembly nor the glass is placed) of the range hood according to an embodiment of the present application; Figure 4 Figure 8 is a structural schematic view in another direction of the back plate assembly and glass bonding equipment in another state (neither the back plate assembly nor the glass is placed) of the range hood according to an embodiment of the present application;

[0030] Figure 6 Figure 9 is a partial structural schematic view of the back plate assembly and glass bonding equipment in another state (omitting the material feeding mechanism) of the range hood according to an embodiment of the present application;

[0031] Figure 7 Figure 10 is an enlarged view of part A in Figure 9; Figure 6

[0032] Figure 8 Figure 11 is a structural schematic view of the profiling table according to an embodiment of the present application;

[0033] Figure 9 Figure 12 is a structural schematic view in another direction of the profiling table according to an embodiment of the present application; Figure 8 Figure 13 is a structural schematic view in another direction of the profiling table according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] The present application will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "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 only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. Since the embodiments disclosed in the present application can be arranged in different directions, these directional terms are only illustrative and should not be regarded as limiting. For example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first", "second" can be explicitly or implicitly included one or more features.

[0036] As Figures 1-9 ​As shown, a kind of backplate assembly of range hood and glass bonding equipment, including rack 1, the top of the rack 1 is the workbench 10 of horizontal extension, also include profiling table 2, pressing mechanism 3, positioning assembly 4 and material lifting mechanism 6.Wherein, profiling table 2 extends horizontally along left and right direction and is fixed on the table top 100 of above-mentioned workbench 10, for range hood backplate assembly 11 and glass 12 are placed from below to above in turn, and with the shape of the range hood backplate assembly 11 match.And, with the first slot 21 for the first flap 111 of range hood backplate assembly is inserted, and the recess 22 for the boss 112 of range hood backplate assembly 11 is embedded, the side of the recess 22 is provided with the second slot 23 for the second flap 113 on the boss 112 is inserted.Pressing mechanism 3 includes the pressing plate 31 that extends horizontally and is located above-mentioned profiling table 2 and the pressing cylinder 32 for driving the pressing plate 31 up and down lifting.Positioning assembly 4 includes the centering mechanism 5 for the left and right centering positioning of range hood backplate assembly 11 and glass 12 and the first positioning block 41 and the second positioning block 42 for the front and rear positioning of both, wherein, the first positioning block 41 is fixed on the table top 100 of workbench 10 and is located at the front side of both, and the second positioning block 42 is located at the rear side and can be moved forward and backward relative to above-mentioned profiling table 2 under the actuation of positioning cylinder 43.Material lifting mechanism 6 is arranged below above-mentioned workbench 10, including the vertical extension of top rod 61 and the material lifting cylinder 62 for driving the top rod 61 up and down movement, and above-mentioned workbench 10 and profiling table 2 are respectively provided with the first through hole 8 for the top rod 61 is provided with.

[0037] From the above, the utility model is provided with profiling table 2, pressing mechanism 3, positioning assembly 4 and material lifting mechanism 6, wherein, through profiling table 2, range hood backplate assembly 11 and glass 12 are placed on workbench 10 stably and positioning of both is facilitated, especially through the recess 22, the first slot 21 and the second slot 23 for the insertion of each flap of backplate assembly 11, so that the stable placement of backplate assembly 11 on profiling table 2 is realized, and it is also beneficial to realize the rapid positioning of backplate assembly 11.In addition, by using pressing mechanism 3, the up and down pressing of backplate assembly 11 and glass 12 is guaranteed, so that the adhesive can fully bond the two.Through positioning assembly 4, accurate positioning of backplate assembly 11 and glass 12 in left and right direction and front and rear direction is realized, guaranteeing the accuracy and reliability of the relative bonding position of both.Through material lifting mechanism 6, the separation between backplate assembly 11 and glass 12 and profiling table 2 after bonding is realized, reducing the manual material taking time, and improving work efficiency.

[0038] Further, the workbench 10 is provided with floating pins 71 vertically extending and vertically floating under the action of a downward pressure, and the floating pins 71 are at least two and can uniformly support the lower surface of the glass 12. During the pressing process, the upward and downward floating support of the glass 12 by the floating pins 71 can buffer the downward pressure of the pressing mechanism 3 acting on the glass 12, so as to avoid the glass 12 from being cracked. The floating pins 71 in the embodiment are of the existing structure, and the structure of the floating positioning pin 72 disclosed in the Chinese invention patent of the prior application ZL201910053910.9 (the authorized publication number is CN111456989B) of the applicant can be referred to. In the embodiment, the floating pins 71 are six, two of which are arranged on the left and right sides of the front end of the profiling table 2 and are located in front of the corresponding grooves 22, respectively, and the other two are arranged in the middle of the profiling table 2 along the length direction and are exposed through the windows (not shown) opened in the profiling table 2 and the back plate assembly 11, respectively, and the remaining two are arranged in the recessed notches (not shown) on the rear side of the profiling table 2, so as to better support the glass 12 in suspension. In addition, the profiling table 2 is uniformly provided with at least two positioning pins 72, each of which vertically extends and can be inserted into the corresponding opening hole 110 on the back plate assembly 11 of the range hood, so as to quickly and accurately place the back plate assembly 11 on the profiling table 2, which is conducive to the quick positioning of the back plate assembly 11. In the embodiment, the positioning pins 72 are four, two of which are arranged on the left and right sides of the front end of the profiling table 2, and the other two are arranged on the left and right sides of the rear end of the profiling table 2, and the spacing between the two positioning pins 72 at the front end of the profiling table 2 is different from the spacing between the two positioning pins 72 at the rear end, so as to more stably position the back plate assembly 11 on the profiling table 2.

[0039] Further, the centering mechanism 5 comprises a centering cylinder 51, a front-rear sliding assembly 52, a left-right sliding assembly 53, a left-right extending connecting rod 54 and a vertically extending centering positioning block 55, and the centering cylinder 51, the front-rear sliding assembly 52, the left-right sliding assembly 53 and the connecting rod 54 are all arranged below the workbench 10. The front-rear sliding assembly 52 comprises a front-rear extending first sliding rail 522 and a first sliding block 521 slidably mounted on the first sliding rail 522, and the centering cylinder 51 is used to drive the first sliding block 521 to slide along the first sliding rail 522. The left-right sliding assembly 53 is two and arranged on the left and right sides of the front-rear sliding assembly 52, and each left-right sliding assembly 53 comprises a left-right extending second sliding rail 532 and a second sliding block 531 slidably mounted on the second sliding rail 532. The connecting rod 54 is two and corresponds to the left-right sliding assembly 53 one by one, one end of each connecting rod 54 is pivotally connected with the first sliding block 521, and the other end is pivotally connected with the inner side end of the corresponding second sliding block 531. The centering positioning block 55 is two and corresponds to the left-right sliding assembly 53 one by one, and the lower end of each centering positioning block 55 is fixed with the outer side end of the corresponding second sliding block 531, and the upper end penetrates through the second through hole 101 on the workbench 10 and is exposed above the table top 100 of the workbench 10, and can abut against the corresponding end of the back plate assembly 11 and the glass 12 of the range hood along the left-right direction. Thus, the first sliding block 521 is driven to slide along the first sliding rail 522 by the centering cylinder 51, thereby driving the connecting rod 54 on both sides, driving the corresponding second sliding block 531 through the connecting rod 54, and finally driving the corresponding centering positioning block 55 through the second sliding block 531, so as to realize the centering of the back plate assembly 11 and the glass 12 along the left-right direction.

[0040] Further, the pressing mechanism 3 further comprises a stand 33 fixed on the table top 100 of the worktable 10, which comprises an upper mounting plate 331 located at the top and horizontally extending, and vertical columns 332 vertically extending, which are at least two and evenly distributed relative to the upper mounting plate 331, and the upper ends of each vertical column 332 are fixed with the upper mounting plate 331 and the lower ends are fixed with the worktable 10 respectively. The pressing plate 31 is located below the upper mounting plate 331, and the pressing cylinder 32 is installed on the upper surface of the upper mounting plate 331, and the piston rod of the pressing cylinder 32 penetrates through the upper mounting plate 331 and is fixed with the pressing plate 31. The setting of the stand 33 can realize the stable installation of the pressing cylinder 32, and also can make the pressing plate 31 stably arranged above the profiling table 2. In the embodiment, the pressing cylinder 32 is three and evenly arranged along the left-right direction, so that the pressing plate 31 can be better driven to move up and down. Preferably, the upper surface of the pressing plate 31 is fixed with a first guide rod 34 vertically extending, and the upper mounting plate 331 is vertically embedded with a first guide sleeve 35, the first guide rod 34 penetrates through the first guide sleeve 35 and can move up and down along the first guide sleeve 35, so that the pressing plate 31 can stably move up and down, to ensure the pressing effect on the back plate assembly 11 and the glass 12. In the embodiment, the first guide rod 34 is two and arranged at the left and right ends of the pressing plate 31. Further preferably, the upper mounting plate 331 and the worktable 10 are fixed with a second guide rod 36 vertically extending, and the pressing plate 31 is fixed with a guide block 37, the free end of the guide block 37 is sleeved on the second guide rod 36 and can move back and forth along the second guide rod 36, so that the stability of the pressing plate 31 moving up and down can be better ensured. In addition, the left and right ends of the upper surface of the upper mounting plate 331 are respectively fixed with handles 38, so that the equipment can be conveniently carried.

[0041] Further, the above-mentioned ejector rods 61 are at least two (in this embodiment, four), and each of the ejector rods 61 can uniformly support the lower surface of the back plate assembly 11 of the range hood. The above-mentioned ejecting mechanism 6 further comprises a horizontally arranged lifting plate 63, the lower end of each of the ejector rods 61 is fixed to the upper surface of the lifting plate 63, and the above-mentioned ejecting cylinder 62 is arranged below the lifting plate 63, and the piston rod of the ejecting cylinder 62 is fixed to the lower surface of the lifting plate 63. In this way, the ejecting cylinder 62 drives the lifting plate 63 to rise, so that each of the ejector rods 61 on the lifting plate 63 rises and supports the top of the back plate assembly 11. The design of multiple ejector rods 61 can ensure the stability of the support of the back plate assembly 11. Preferably, the above-mentioned ejecting mechanism 6 further comprises a lower mounting plate 64 and a third guide rod 65 below the above-mentioned lifting plate 63, the above-mentioned ejecting cylinder 62 is mounted on the lower mounting plate 64, the above-mentioned lifting plate 63 is vertically embedded with a second guide sleeve 66, the upper end of the above-mentioned third guide rod 65 is fixed to the workbench 10 and the lower end is fixed to the lower mounting plate 64, and the third guide rod 65 is arranged in the above-mentioned second guide sleeve 66 and can slide up and down in the second guide sleeve 66. Thus, the lifting plate 63 can stably rise and fall, and the stability of the support of the back plate assembly 11 can be better ensured.

Claims

1. A device for bonding a back plate assembly of a range hood to glass, comprising a frame (1), the top of which is a horizontally extending worktable (10), characterized in that, Also include: Profiling table (2), horizontally extending and fixed on the table surface (100) of the above workbench (10), for the back plate assembly (11) and glass (12) of the range hood to be placed from bottom to top in turn, and matched with the shape of the back plate assembly (11) of the range hood, and has a first slot (21) for the first flap (111) of the back plate assembly (11) of the range hood to insert and a groove (22) for the boss (112) of the back plate assembly (11) of the range hood to embed, one side of the groove (22) is provided with a second slot (23) for the second flap (113) on the boss (112) to insert; Pressing mechanism (3) includes horizontally extending and located above the profiling table (2) pressing plate (31) and for driving the pressing plate (31) up and down lifting pressing cylinder (32); Positioning assembly (4) includes for the back plate assembly (11) and glass (12) of the range hood to be left and right centering positioning centering mechanism (5) and for the two to be front and rear positioning first positioning block (41) and second positioning block (42), wherein the first positioning block (41) is fixed on the table surface (100) of the workbench (10) and located in one side of the front and rear sides of the two, and the second positioning block (42) is located on the other side and can move forward and backward relative to the profiling table (2) under the action of positioning cylinder (43); The ejection mechanism (6) is arranged below the workbench (10), which comprises a vertical ejection rod (61) and an ejection cylinder (62) for driving the ejection rod (61) to move up and down, and the workbench (10) and the profiling table (2) are respectively provided with a first through hole (8) for the ejection rod (61) to pass through.

2. The range hood back panel assembly and glass bonding apparatus of claim 1, wherein, The workbench (10) is provided with floating pins (71), which vertically extend and can vertically float under the action of downward pressure, and the floating pins (71) are at least two and can uniformly support on the lower surface of the glass (12).

3. The range hood back panel assembly and glass bonding apparatus of claim 1, wherein, The profiling table (2) is uniformly provided with at least two positioning pins (72), each of which vertically extends and can be inserted into the corresponding hole (110) on the back plate assembly (11) of the range hood.

4. The apparatus according to any one of claims 1 to 3, wherein The centering mechanism (5) includes centering cylinder (51), front and rear sliding assembly (52), left and right sliding assembly (53), left and right extending connecting rod (54) and vertical extending centering positioning block (55), and the centering cylinder (51), front and rear sliding assembly (52), left and right sliding assembly (53) and connecting rod (54) assembly are arranged below the workbench (10), wherein the front and rear sliding assembly (52) includes front and rear extending first sliding rail (522) and first sliding block (521) slidingly installed on the first sliding rail (522), and the centering cylinder (51) is used for driving the first sliding block (521) to slide along the first sliding rail (522), The left and right sliding assemblies (53) are two and are arranged on the left and right sides of the front and rear sliding assembly (52), each left and right sliding assembly (53) comprises a second sliding rail (532) extending left and right and a second sliding block (531) fitted on the second sliding rail (532) and extending left and right, The connecting rods (54) are two and correspond to the left and right sliding assemblies (53), one end of each connecting rod (54) is pivotally connected to the first sliding block (521), and the other end is pivotally connected to the inner side end of the second sliding block (531) of the corresponding left and right sliding assembly (53), the centering positioning blocks (55) are two and correspond to the left and right sliding assemblies (53), the lower end of each centering positioning block (55) is fixed to the outer side end of the corresponding second sliding block (531), and the upper end passes through the second through hole (101) in the workbench (10) and is exposed above the table top (100) of the workbench (10) and can abut against the corresponding end of the back plate assembly (11) and the glass (12) of the range hood in the left and right directions.

5. The apparatus for bonding a back panel assembly to glass of a range hood according to any one of claims 1 to 3, wherein The pressing mechanism (3) further comprises a stand (33) fixed on the table top (100) of the workbench (10), the stand (33) comprises an upper mounting plate (331) located at the top and extending horizontally and vertical columns (332) extending vertically, the vertical columns (332) are at least two and are uniformly distributed relative to the upper mounting plate (331), and the upper end of each vertical column (332) is fixed to the upper mounting plate (331) and the lower end is fixed to the workbench (10), The pressing plate (31) is located below the upper mounting plate (331), and the pressing cylinder (32) is mounted on the upper surface of the upper mounting plate (331), and the piston rod of the pressing cylinder (32) passes through the upper mounting plate (331) and is fixed to the pressing plate (31).

6. The range hood back panel assembly and glass bonding apparatus of claim 5, wherein, A first guide rod (34) extending vertically is fixed on the upper surface of the pressing plate (31), and a first guide sleeve (35) is vertically embedded in the upper mounting plate (331), the first guide rod (34) is arranged in the first guide sleeve (35) and can move up and down along the first guide sleeve (35).

7. The range hood back panel assembly and glass bonding apparatus of claim 5, wherein, A second guide rod (36) extending vertically is fixed between the upper mounting plate (331) and the workbench (10), and a guide block (37) is fixed on the pressing plate (31), the free end of the guide block (37) is sleeved on the second guide rod (36) and can move back and forth along the second guide rod (36).

8. The range hood back panel assembly and glass bonding apparatus of claim 5, wherein, A handle (38) is fixed on the upper surface of the upper mounting plate (331).

9. The apparatus for bonding a back panel assembly to glass of a range hood according to any one of claims 1 to 3, wherein The ejector mechanism (6) further comprises a lifting plate (63) arranged horizontally, the lower end of each ejector rod (61) is fixed to the upper surface of the lifting plate (63), and the ejector cylinder (62) is arranged below the lifting plate (63), and the piston rod of the ejector cylinder (62) is fixed to the lower surface of the lifting plate (63).

10. The range hood back panel assembly and glass bonding apparatus of claim 9, wherein, The top mechanism (6) further comprises a lower mounting plate (64) below the lifting plate (63) and a third guide rod (65), the top cylinder (62) is mounted on the lower mounting plate (64), a second guide sleeve (66) is vertically embedded on the lifting plate (63), the upper end of the third guide rod (65) is fixed with the workbench (10) and the lower end is fixed with the lower mounting plate (64), and the third guide rod (65) is arranged in the second guide sleeve (66) and can slide up and down in the second guide sleeve (66).

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