CN117588909A

CN117588909A - Automatic pressure-maintaining hot air oven

Info

Publication number: CN117588909A
Application number: CN202311583696.0A
Authority: CN
Inventors: 曹志钊
Original assignee: Guoguang Electric Co Ltd
Current assignee: Guoguang Electric Co Ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-02-23

Abstract

The invention discloses an automatic pressure-maintaining hot air oven. In the automatic pressure-maintaining hot air oven, the pressurizing tool detection return mechanism can control the control mechanism to automatically start the pressurizing tool releasing mechanism or take the pressurizing tool mechanism according to the detected actual position of the product tool, so that the pressurizing tool releasing mechanism accurately stacks the pressurizing tool on the product tool to apply pressure to the product tool, or takes down the pressurizing tool on the dried tool through the pressurizing tool taking mechanism to be in stacking connection with the next product tool. The automatic pressure-maintaining hot air oven reduces the processes of taking the pressurizing tool and placing the pressurizing tool by human intervention, so that the automatic pressure-maintaining hot air oven can improve the consistency and the accuracy of the pressure-maintaining force and the position of the pressurizing tool on the product tool on the basis that the bonding of horn parts is firm, the production efficiency and the product quality can be effectively ensured, the equipment safety is enhanced, and the manual operation cost is reduced.

Description

Automatic pressure-maintaining hot air oven

Technical Field

The invention belongs to the technical field of horn production and manufacturing, and particularly relates to an automatic pressure-maintaining hot air oven.

Background

After the loudspeaker parts (mainly the sound membrane and the support) are assembled, AB water is required to be injected on a plane of the support, which is arranged relative to the sound membrane, and after the sound membrane is combined with the support, the sound membrane and the support are bonded through AB glue. In order to improve the mass production efficiency, the oven is adopted to bake the adhered horn parts for a period of time at a certain high temperature, so that the AB glue is quickly cured in a heating curing mode.

Because sound membrane weight is lighter, and softer, in order to guarantee that adhesion is up to standard, often use the manual pressure maintaining clamp to fold pressure on loudspeaker spare part among the prior art to can close contact between messenger's support and the sound membrane, ensure the bonding dynamics, treat the oven and toast the back again the manual pressure maintaining clamp on the loudspeaker spare part and take off. However, it is difficult for manual operations to ensure that the force and position of each lamination are completely consistent, resulting in uneven product quality, inefficient production speed, and risks of equipment damage and operator injury due to incorrect operations, and significant increases in labor costs.

Based on the foregoing, there is a need for an automatic pressure-maintaining hot air oven to solve the technical problems in the prior art.

Disclosure of Invention

The invention aims to provide an automatic pressure-maintaining hot air oven so as to reduce human intervention process, improve production speed, ensure equipment safety and reduce labor cost.

To achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an automatic pressurize hot-blast oven can toast a plurality of loudspeaker spare part that sets up on the product frock, including all being connected in control mechanism put pressurization frock mechanism, box, get pressurization frock mechanism and pressurization frock and detect passback mechanism, wherein:

the pressurizing tool mechanism is positioned at the upstream position of the box body and can stack the pressurizing tool to the top of the product tool to form a tool to be baked, and a plurality of pressurizing clamps which are arranged corresponding to the horn parts are arranged on the pressurizing tool;

the box body is used for baking the tool to be baked so as to form a baked tool;

the pressurizing tool taking mechanism is positioned at the downstream position of the box body, and can take down the pressurizing tools in the baked tools;

the pressurizing tool detection return mechanism is connected to the pressurizing tool taking mechanism and the pressurizing tool placing mechanism, the pressurizing tool can be taken down and returned to the pressurizing tool placing mechanism, and the control mechanism can be controlled to start the pressurizing tool placing mechanism or the pressurizing tool taking mechanism according to the detected actual position of the product tool, so that the pressurizing tool is stacked on the product tool or the pressurizing tool in the baked tool is taken down.

Optionally, the pressurization frock detects passback mechanism including all connect in control mechanism's passback belt subassembly and detection piece, passback belt subassembly's input, output connect respectively in get pressurization frock mechanism put pressurization frock mechanism, and can bear the pressurization frock, detection piece is configured to detect the actual position of product frock.

Optionally, the pressurizing tool is provided with a plurality of pressurizing tools;

the detection piece comprises a first sensor, and the first sensor is arranged at the output end of the return belt assembly;

the pressurizing tool detection return mechanism further comprises a first blocking interval induction driving piece, the first blocking interval induction driving piece is located at the upstream position of the first sensor along the conveying direction of the return belt assembly, and when the first sensor detects that the pressurizing tool is located on the return belt assembly and is located at a first designated position, the first sensor can send signals to the first blocking interval induction driving piece, so that an output shaft of the first blocking interval induction driving piece extends out, and the pressurizing tool is blocked to be adjacent.

Optionally, the pressurizing tool detecting and returning mechanism further comprises a second blocking interval induction driving piece, and the second blocking interval induction driving piece is located at an upstream position of the first blocking interval induction driving piece along the conveying direction of the returning belt assembly;

When the second blocking interval induction driving piece detects that the pressurizing tool is arranged on the return belt assembly and is positioned at a second designated position, an output shaft of the second blocking interval induction driving piece can extend out to block the adjacent pressurizing tool.

Optionally, the feeding conveying mechanism further comprises a feeding conveying assembly and a cylinder pushing assembly, wherein the feeding conveying assembly and the cylinder pushing assembly are both connected to the control mechanism, the input end of the feeding conveying assembly is connected to the feeding end, the output end of the feeding conveying assembly is connected to the box body, the pressurizing tool mechanism is located in the middle of the feeding conveying assembly, the cylinder pushing assembly is movably arranged on the feeding conveying assembly, and the product tool at the feeding end can be pushed into the box body through the feeding conveying assembly.

Optionally, the feeding conveying assembly is including all connect in control mechanism's first conveyer belt and first transport block the driving piece, the both ends of first conveyer belt connect respectively in the feed end with the box, just put pressurization frock mechanism and be located the middle part of first conveyer belt, pressurization frock detects passback mechanism can be according to the actual position of product frock that detects, control mechanism starts first transport blocks the driving piece, so that first transport blocks the output of driving piece and stretches out along vertical direction and blocks product frock.

Optionally, a positioning hole is formed in the product tool; the feeding conveying assembly further comprises a jacking positioning driving piece, the jacking positioning driving piece is located at the bottom of the first conveying belt and connected to the control mechanism, a positioning pin is arranged at the output end of the jacking positioning driving piece, and the control mechanism can drive the output end of the jacking positioning driving piece to extend out in the vertical direction, so that the positioning pin is limited and inserted into the positioning hole.

Optionally, the feeding conveying mechanism further comprises an oven feeding mechanism, the oven feeding mechanism comprises a bracket and a feeding pushing piece, wherein:

the bracket is fixedly arranged and is provided with a second sensor;

the feeding pushing piece is movably arranged on the support along the direction close to or far away from the inlet of the box body, the feeding pushing piece and the second inductor are both connected to the control mechanism, and when the second inductor detects that the tool to be baked is at a preset position, the control mechanism can be controlled to start the feeding pushing piece so as to push the tool to be baked into the box body through the feeding pushing piece.

Optionally, a plurality of box plates are fixedly arranged in the box body along the vertical direction so as to divide the box body into a plurality of layers of baking areas;

The oven mechanism still includes feeding lifting assembly, feeding lifting assembly includes feeding crane and feeding elevating platform, feeding crane set firmly along vertical direction in the support with between the entry of box, feeding elevating platform along vertical direction slidable set up in on the feeding crane, feeding elevating platform can receive follow get the pressurization frock mechanism release wait to toast the frock to can go up and down to the multilayer respectively toast regional department.

Optionally, the oven feeding mechanism further comprises a buffer platform, wherein the buffer platform is located between the output end of the feeding conveying assembly and the inlet of the box body and is level to the height of the output end of the feeding conveying assembly, so that the buffer platform can receive and buffer the pushed-out tool to be baked;

the feeding pushing piece comprises a first pushing piece and a plurality of second pushing pieces, the first pushing pieces are located at the bottoms of the second pushing pieces along the vertical direction, the buffer platform is correspondingly arranged at the first pushing pieces, the second pushing pieces are correspondingly arranged at the baking areas, the first pushing pieces can push the to-be-baked tools on the buffer platform to the feeding lifting table, and the second pushing pieces can push the to-be-baked tools on the feeding lifting table to the corresponding baking areas.

Optionally, the case further comprises a uniform heating element and a side plate, wherein:

the uniform heating piece is fixedly arranged in the box body;

along the horizontal perpendicular to the direction of motion of feeding impeller, the relative both sides of box respectively are equipped with one the curb plate, one of them be equipped with air inlet channel and a plurality of fresh air inlet in the curb plate, air inlet channel communicate in the gas outlet of even heating member, the fresh air inlet one-to-one communicate in toast the region, another be equipped with air-out passageway and a plurality of fresh air outlet in the curb plate, the air-out passageway communicate in the air inlet of even heating member, the fresh air outlet one-to-one communicate in toast the region.

Optionally, the device further comprises an oven outlet mechanism, wherein the oven outlet mechanism comprises a discharge lifting assembly, a discharge conveying belt and a discharge pushing member which are all connected with the control mechanism, and the oven outlet mechanism comprises:

the discharging lifting assembly comprises a discharging lifting frame and a discharging lifting table, the discharging lifting frame is fixedly arranged between the outlet of the box body and the discharging conveying belt along the vertical direction, and the discharging lifting table is slidably arranged on the discharging lifting frame along the vertical direction;

the input end and the output end of the discharging conveyor belt are respectively connected with the discharging lifting assembly and the pressurizing tool taking mechanism and are used for conveying the baked tool;

The discharging pushing piece can be movably arranged in the box body in a direction close to or far away from the discharging conveying belt, and can push the baked tool on the discharging lifting table onto the discharging conveying belt.

Optionally, the device further comprises a discharging mechanism connected to the control mechanism, wherein the discharging mechanism is located at a downstream position of the pressurizing tool taking mechanism and is configured to place the product tool after the pressurizing tool is taken down to a discharging end.

The invention has the beneficial effects that: the invention provides an automatic pressure-maintaining hot air oven which mainly comprises a pressurizing tool mechanism, a box body, a pressurizing tool taking mechanism and a pressurizing tool detection return mechanism which are all electrically connected with a control mechanism. The pressurizing tool detection return mechanism can control the control mechanism to automatically start the pressurizing tool releasing mechanism or take the pressurizing tool mechanism according to the detected actual position of the product tool, so that the pressurizing tool releasing mechanism accurately stacks the pressurizing tool on the product tool to apply pressure to the product tool, or takes down the pressurizing tool on the dried tool through the pressurizing tool taking mechanism to be in stacking connection with the next product tool. The automatic pressure-maintaining hot air oven reduces the processes of taking the pressurizing tool and placing the pressurizing tool by human intervention, so that the automatic pressure-maintaining hot air oven can improve the consistency and the accuracy of the pressure-maintaining force and the position of the pressurizing tool on the product tool on the basis that the bonding of horn parts is firm, the production efficiency and the product quality can be effectively ensured, the equipment safety is enhanced, and the manual operation cost is reduced.

Drawings

FIG. 1 is a top view of an automatic pressure maintaining hot air oven according to an embodiment of the present invention;

FIG. 2 is a schematic view of a feed conveyor mechanism according to an embodiment of the present invention;

fig. 3 is a schematic view of a portion of a first belt according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a pressurizing and pressurizing tool mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an oven inlet mechanism according to an embodiment of the present invention;

FIG. 6 is a front view of the case along the Y-axis direction according to the embodiment of the present invention;

FIG. 7 is a front view of an oven mechanism along the X-axis direction according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a box according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an oven outlet mechanism according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a pressurizing and unloading tool mechanism according to an embodiment of the present invention;

FIG. 11 is a side view of an oven exit mechanism according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a blanking mechanism according to an embodiment of the present invention;

FIG. 13 is a top view of a blanking mechanism according to an embodiment of the present invention;

fig. 14 is a top view of a part of the structure of an automatic pressure-maintaining hot air oven according to an embodiment of the present invention.

In the figure:

100. product tooling; 110. horn parts; 200. pressurizing a tool; 210. a pressurizing clamp; 300. a feed end; 400. a tool to be baked; 500. a tool after baking; 600. a discharge end;

1. placing a pressurizing tool mechanism; 11. a first support frame; 12. a first pressurizing and discharging driving assembly; 121. a first slider; 122. a first slide rail; 123. a first pressurizing/discharging driving member; 13. a second pressurizing and discharging driving assembly; 131. a second slider; 132. a second slide rail; 133. a second pressurizing drive member; 14. a first jaw;

2. a case; 21. a box plate; 22. a baking area; 23. a uniform heating member; 24. a side plate; 25. a temperature display;

3. taking a pressurizing tool mechanism; 31. a second support frame; 32. a first pressurizing driving assembly; 321. a third slider; 322. a third slide rail; 323. a first pressurizing driving member; 33. a second pressurizing driving assembly; 331. a fourth slider; 332. a fourth slide rail; 333. a second pressurizing driving piece is taken; 34. a second jaw;

4. the pressurizing tool detects a return mechanism; 41. a return belt assembly; 421. a first inductor; 43. a first blocking interval induction drive; 44. a second blocking interval induction drive;

5. A feed conveying mechanism; 51. a feed conveyor assembly; 511. a first conveyor belt; 512. a second conveyor belt; 513. a third conveyor belt; 514. a first transport block drive; 515. a cushion pad; 516. jacking the positioning driving piece; 5161. a positioning pin; 517. a second transport barrier drive; 5171. a vertical stop plate; 52. a cylinder pushing assembly; 521. a first feed cylinder; 522. a second feed cylinder; 523. a third feed cylinder;

6. a baking oven mechanism; 61. a bracket; 611. a second inductor; 62. a feed pusher; 621. a first pusher; 622. a second pusher; 63. a feed lift assembly; 631. a feeding lifting frame; 632. a feeding lifting table; 633. a feed lift drive; 64. a cache platform;

7. a discharging oven mechanism; 71. a discharging lifting assembly; 711. a discharging lifting frame; 712. a discharging lifting table; 713. a discharging lifting driving piece; 72. a discharge conveyor belt; 73. a discharge pushing member; 74. a tooling shifting assembly; 75. converting the transmission belt; 76. converting the pushing driving piece;

8. a blanking mechanism; 81. tool wire passing assembly; 811. a wire passing transmission belt; 812. a correcting member; 82. a blanking assembly; 821. a blanking frame; 822. a fifth slide rail; 823. a fifth slider; 824. a sixth slide rail; 825. a sixth slider; 826. and a third jaw.

Detailed Description

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to be within the scope of the present invention.

The following describes an automatic pressure-maintaining hot air oven capable of baking a plurality of horn parts 110 disposed on a product fixture 100 according to the present invention with reference to fig. 1 to 14 and the specific embodiment.

Specifically, the automatic pressure maintaining hot air oven comprises a pressurizing tool mechanism 1, a box body 2, a pressurizing tool taking mechanism 3, a pressurizing tool detection return mechanism 4 and a control mechanism, wherein the pressurizing tool mechanism 1, the box body 2, the pressurizing tool taking mechanism 3 and the pressurizing tool detection return mechanism 4 are all electrically connected to the control mechanism. The pressurizing tool mechanism 1 is located at an upstream position of the box 2 and can stack the pressurizing tool 200 to the top of the product tool 100 to form a tool 400 to be baked, and the pressurizing tool 200 is provided with a plurality of pressurizing clamps 210 corresponding to the horn parts 110; the box body 2 is used for baking the tooling 400 to be baked to form a baked tooling 500; the pressurizing tool mechanism 3 is positioned at the downstream position of the box body 2 and can take down the pressurizing tool 200 in the baked tool 500; the pressurizing tool detection return mechanism 4 is connected to the pressurizing tool taking mechanism 3 and the pressurizing tool placing mechanism 1, and can return the taken pressurizing tool 200 to the pressurizing tool placing mechanism 1, and can control the control mechanism to start the pressurizing tool placing mechanism 1 or the pressurizing tool taking mechanism 3 according to the detected actual position of the product tool 100, so that the pressurizing tool 200 is overlapped on the product tool 100 or the pressurizing tool 200 in the baked tool 500 is taken down.

Illustratively, when the automatic pressure-maintaining hot air oven is actually used, when the product tooling 100 is located at the first station (i.e. the product tooling 100 is disposed opposite to the pressurizing tooling 200 on the pressurizing tooling mechanism 1, as shown in fig. 4), the pressurizing tooling detection feedback mechanism 4 can send a working signal for starting the pressurizing tooling mechanism 1 to the control mechanism, and at this time, the pressurizing tooling mechanism 1 can accurately stack the pressurizing tooling 200 acquired from the pressurizing tooling detection feedback mechanism 4 on the pressurizing tooling 200, and it can be understood that the control system can also set the displacement of the movement of the pressurizing tooling mechanism 1 to ensure the consistency of the stacking force during each stacking; when the product station is located at the second station (i.e. the product tooling 100 is opposite to the pressurizing tooling mechanism 3, as shown in fig. 10), the pressurizing tooling detection return mechanism 4 can send a working signal for starting the pressurizing tooling mechanism 3 to the control mechanism, and at this time, the pressurizing tooling mechanism 3 can take down the pressurizing tooling 200 on the dried tooling, so that the taken-down pressurizing tooling 200 can be returned to the pressurizing tooling mechanism 1 again for stacking with the next product tooling 100.

Like this, make the work process that pressurization frock 200 had realized "automatic lamination-automatic take off-automatic backward flow" through control mechanism to effectively reduced human intervention, made this automatic pressurize hot-blast oven on can realizing loudspeaker spare part 110 bonding firm basis, ensured that pressurization frock 200 is overlapped dynamics and the uniformity and the accuracy in position on product frock 100, production efficiency and product quality obtain improving, when having strengthened equipment security, reduced manual operation cost.

Optionally, as shown in fig. 1, in this embodiment, the automatic pressure-maintaining hot air oven further includes a feeding and conveying mechanism 5, so as to realize that the product fixture 100 automatically passes through the first station and is conveyed into the box 2, so as to further reduce human intervention. Specifically, the feeding and conveying mechanism 5 includes a feeding and conveying assembly 51 and a cylinder pushing assembly 52 both connected to the control mechanism, wherein an input end of the feeding and conveying assembly 51 is connected to the feeding end 300, and an output end of the feeding and conveying assembly 51 is connected to the box 2, so that the feeding and conveying assembly 51 can automatically receive the product fixture 100 output from the feeding end 300, and a step of manually taking materials is eliminated; the pressurizing tool mechanism 1 is arranged in the middle of the feeding conveying mechanism 5; the cylinder pushing assembly 52 is movably arranged on the feeding conveying assembly 51, and can push the product tool 100 positioned at the feeding end 300 into the box body 2 through the feeding conveying assembly 51. Through the arrangement, under the pushing action of the air cylinder pushing assembly 52, the product tool 100 firstly realizes the lamination of the product tool 100 and the pressurizing tool 200 through the first station, and then is automatically pushed into the box body 2 for baking, so that the purpose that the tool 400 to be baked automatically enters the box body 2 while manual material taking is eliminated, and the intelligent automation of the automatic pressure-maintaining hot air oven is further improved.

Illustratively, in this embodiment, as shown in FIG. 2, the infeed conveyor assembly 51 includes a first conveyor belt 511, a second conveyor belt 512, and a third conveyor belt 513. The cylinder pushing assembly 52 includes a first feed cylinder 521 and a second feed cylinder 522. The output end of the second feeding cylinder 522 is telescopically arranged along the X-axis direction, and the third conveying belt 513 is arranged to extend along the Y-axis direction and is connected with the feeding end 300, so that the product fixture 100 can be conveyed to a position opposite to the output end of the second feeding cylinder 522. The second conveying belt 512 extends along the X-axis direction, and corresponds to the output end of the second feeding cylinder 522, so that after the output end of the second feeding cylinder 522 extends, the product fixture 100 on the third conveying belt 513 can be pushed onto the second conveying belt 512. The output end of the first feeding cylinder 521 is telescopically arranged along the Y-axis direction and is arranged at the output end of the second conveying belt 512, the first conveying belt 511 is arranged in an extending mode along the Y-axis direction, the input end of the first conveying belt 511 is oppositely arranged at the output end of the first feeding cylinder 521, the output end of the first conveying belt is connected to the box body 2, the pressurizing tool mechanism 1 is arranged at the middle position of the first conveying belt 511, so that the product tool 100 on the second conveying belt 512 can be pushed onto the first conveying belt 511 through the first feeding cylinder 521, the lamination process of the pressurizing tool 200 on the product tool 100 is completed on the first conveying belt 511, and then the tool 400 to be baked is transported into the box body 2.

Further, referring to fig. 3, the feeding and conveying assembly 51 provided in this embodiment further includes a first conveying blocking driving member 514 connected to the control mechanism, and when the pressurizing tool detecting and returning mechanism 4 detects that the product tool 100 is at the first station, a signal is sent to the control mechanism, so that the control mechanism can drive the first conveying blocking driving member 514 to start, and the output end of the first conveying blocking driving member 514 can extend along the vertical direction and block the product tool 100, so as to ensure that the product tool 100 can be accurately positioned at the first station, thereby ensuring that the pressurizing tool 200 can be accurately stacked on the product tool 100.

Optionally, in order to protect the product fixture 100 and reduce buffering, a buffer pad 515 disposed corresponding to the product fixture 100 along the Y-axis direction is further disposed at the output end of the first conveying blocking driving member 514, where the buffer pad 515 may be a polyurethane buffer pad, so as to effectively reduce the impact force between the product fixture 100 and the output end of the first conveying blocking driving member 514, thereby preventing loosening and falling of the horn part 110, and ensuring the installation stability thereof.

Still further, with continued reference to fig. 3, in this embodiment, a positioning hole is formed on the product fixture 100; the feeding conveying assembly 51 further comprises a jacking positioning driving member 516, the jacking positioning driving member 516 is located at the bottom of the first conveying belt 511 and is connected to the control mechanism, a positioning pin 5161 is arranged at the output end of the jacking positioning driving member 516, when the product fixture 100 moves to the first station, the control mechanism starts the first conveying blocking driving member 514 and simultaneously starts the jacking positioning driving member 516, so that the output end of the jacking positioning driving member 516 extends upwards in the vertical direction, and the positioning pin 5161 can be inserted into the positioning hole in a limiting mode. Through the jacking positioning driving member 516, the product tool 100 can be limited and fixed along the Y-axis direction, so that the lamination quality and accuracy of the pressurizing tool 200 are further improved.

Specifically, referring to fig. 4, the pressurizing tool mechanism 1 includes a first support frame 11, a first pressurizing driving assembly 12, a second pressurizing driving assembly 13, and a first clamping jaw 14. Wherein, the first supporting frame 11 is fixedly arranged on the horizontal plane and is positioned in the middle of the first conveying belt 511; the first pressurizing and pressurizing driving assembly 12 comprises a first sliding block 121, a first sliding rail 122 and a first pressurizing and pressurizing driving member 123, wherein the first pressurizing and pressurizing driving member 123 and the first sliding rail 122 are fixedly arranged on the first supporting frame 11, and the output end of the first pressurizing and pressurizing driving member 123 is connected to the first sliding block 121 so that the first sliding block 121 can slide on the first sliding rail 122 along the direction shown by the X axis in fig. 4; the second pressurizing and pressurizing driving assembly 13 comprises a second sliding block 131, a second sliding rail 132 and a second pressurizing and pressurizing driving member 133, wherein the second pressurizing and pressurizing driving member 133 and the second sliding rail 132 are fixedly arranged at the end part of the first sliding block 121 along the vertical direction, and the output end of the second pressurizing and pressurizing driving member 133 is connected with the second sliding block 131 so that the second sliding block 131 can slide on the second sliding rail 132 along the vertical direction; the first clamping jaw 14 is fixedly arranged on the second slider 131.

Through setting up first pressurization drive assembly 12, can make first clamping jaw 14 can stride first station and acquire pressurization frock 200 on the pressurization frock detection passback mechanism 4, then will press from both sides the pressurization frock 200 of getting and remove to the position that sets up relatively with first station again to ensure the accuracy of pressurization frock 200 fold the pressure position. And through setting up the second and putting pressurization drive assembly 13, then can control the dynamics of pressurization frock 200 fold on product frock 100 through the distance that control reciprocated, not only realized the uniformity of folding dynamics, also be convenient for to the adjustment of folding dynamics, guarantee the security and the pasting fastness of loudspeaker spare part 110.

Optionally, the automatic dwell hot air oven further includes an oven feed mechanism 6, as shown in fig. 5, which includes a bracket 61 and a feed pusher 62. Wherein the bracket 61 is fixedly arranged between the feeding conveying mechanism 5 and the box body 2, and is fixedly provided with a second sensor 611 connected with the control mechanism; the feeding pusher 62 is movably provided on the bracket 61 in a direction approaching or separating from the inlet of the casing 2 (in this embodiment, the inlet of the casing 2 and the outlet of the casing 2 are opened in a direction shown by the Y-axis in fig. 1, so that the feeding pusher 62 moves in the Y-axis direction), and is connected to the control mechanism. When the first sensor 421 detects that the tool 400 to be baked is at a preset position (i.e. the position corresponding to the inlet of the box body 2), a signal can be sent to the control mechanism, so that the feeding pushing member 62 is started, and at the moment, the feeding pushing member 62 can push the tool 400 to be baked into the box body 2 for baking, so that the process that the tool 400 to be baked can be automatically pushed into the box body 2 is realized, and the intelligent automation of the automatic pressure-maintaining hot air oven is further improved.

Referring to fig. 6, a plurality of box boards 21 are fixedly provided in the vertical direction in the box 2, for example, in this embodiment, five box boards 21 are provided to form five baking areas 22 (only one baking area 22 is indicated in the figure) in the box 2; in addition, the oven mechanism 6 provided in this embodiment further includes a feed lift assembly 63, and the feed lift assembly 63 includes a feed lift 631 and a feed lift 632. Wherein, the feeding lift 631 is fixedly arranged between the support 61 and the inlet of the box 2 along the vertical direction, the feeding lift 632 can realize the sliding on the feeding lift 631 through the driving of the feeding lift driving member 633, the feeding lift 632 can receive the tool 400 to be baked pushed out from the pressurizing tool taking mechanism 3 and can sequentially lift to the multi-layer baking area 22 on the feeding lift 631, so that the tool 400 to be baked on the feeding lift 632 is pushed into the corresponding baking area 22 through the feeding pushing member 62, and the purpose of pushing a plurality of tools 400 to be baked into the baking areas 22 of different layers is realized.

It should be noted that, in this embodiment, the length of the product fixture 100 along the direction indicated by the Y axis in fig. 2 is 280mm, the total width of the product fixture 100 along the direction indicated by the X axis is 98mm, and considering the actual specification and size of the horn parts 110 and the requirement of mass production, the product fixture 100 is designed in one-out-four manner, i.e. four horn parts 110 to be baked are arranged on the product fixture 100 at intervals, so as to improve the mass production efficiency. Correspondingly, four pressurizing jigs 210 are also fixedly arranged on the pressurizing tool 200, so that the pressurizing jigs 210 are arranged on the horn parts 110 in a one-to-one correspondence. Moreover, by adopting the automatic pressure-maintaining hot air oven with the multi-layer baking area 22 structure, the purpose of baking the horn parts 110 on more product tools 100 can be realized in a limited space, and the yield and the efficiency are further improved.

More specifically, referring to fig. 5 and 7, the oven inlet mechanism 6 further includes a buffer platform 64, where the buffer platform 64 is located between the output end of the first conveyor 511 and the inlet of the box 2 and is level with the height of the output end of the first conveyor 511, so that the buffer platform 64 can receive and buffer the pushed out tool 400 to be baked; in addition, the feeding pushing member 62 includes a first pushing member 621 and a plurality of second pushing members 622, wherein the first pushing member 621 is located at bottoms of the plurality of second pushing members 622 along a vertical direction, the buffer platform 64 is correspondingly disposed on the first pushing member 621, and the second pushing members 622 are arranged at intervals along the vertical direction and are correspondingly disposed in the baking area 22 one by one.

For example, after the second sensor 611 detects that the tool 400 to be baked is at the preset position, the control mechanism can control the first pushing member 621 to be started, so that the first pushing member 621 can move along the direction close to the inlet of the box 2, so that the first group of tools 400 to be baked on the buffer platform 64 is pushed onto the feeding lifting platform 632, then the feeding lifting platform 632 is lifted onto the first layer baking area 22 for the first time, and the second pushing member 622 corresponding to the first layer baking area 22 can move along the direction close to the inlet of the box 2 at this time, so as to push the tools 400 to be baked on the feeding lifting platform 632 into the first layer baking area 22. Then the feeding lifting table 632 descends again to the same height as the buffer platform 64, after the next group of tools 400 to be baked is located at the preset position on the buffer platform 64, the first pushing member 621 pushes the next group of tools 400 to be baked onto the feeding lifting table 632, then the feeding lifting table 632 ascends to the second layer baking area 22, the second pushing member 622 corresponding to the second layer baking area 22 can move along the direction close to the entrance of the box 2, so that the tools 400 to be baked on the feeding lifting table 632 are pushed into the second layer baking area 22, and so on until the five layers of baking areas 22 on the box 2 are all provided with tools 400 to be baked.

The advantage of this setting is that when the feeding elevating platform 632 moves up and down and pushes the tools 400 to be baked into the box 2, the tools 400 to be baked of the same group can be temporarily stored on the buffer platform 64 first, but not stacked on the first conveyor belt 511, so that the obstruction to the rhythm of the tools 400 to be baked of the next group is eliminated, when the feeding elevating platform 632 finishes sending the tools 400 to be baked into the corresponding baking area 22, the tools 400 to be baked can be lowered to the height equal to the buffer platform 64 and immediately received into the tools 400 to be baked temporarily stored in the buffer platform 64, so that the tools 400 to be baked of the next group can not be pushed into the feeding elevating platform 632 in a time-consuming manner, each group of tools 400 to be baked can be pushed into the box 2 at regular intervals, the orderly operation of the automatic pressure-maintaining hot air oven is improved, and the automatic pressure-maintaining hot air oven is ensured to have higher production efficiency.

In this embodiment, in order to reduce the length of the whole automatic pressure-maintaining hot air oven along the Y axis direction, the pressurizing tool mechanism 1 and the oven feeding mechanism 6 are disposed on one side of the first conveyor belt 511 along the X axis direction. Therefore, in order to ensure that the tool 400 to be baked can be smoothly pushed into the box 2, in this embodiment, as shown in fig. 2, the cylinder pushing assembly 52 further includes a third feeding cylinder 523, the third feeding cylinder 523 is located between the buffer platform 64 and the output end of the first conveying belt 511, and the output end of the third feeding cylinder 523 can move telescopically along the X-axis direction, so that the third feeding cylinder 523 can push the tool 400 to be baked located at the output end of the first conveying belt 511 onto the buffer platform 64.

Further, in this embodiment, in order to prevent the tool 400 to be baked from falling on the first conveyor belt 511, the feeding conveying assembly 51 further includes a second conveying blocking driving member 517, the second conveying blocking driving member 517 is disposed at the output end of the first conveyor belt 511 along the vertical direction, the second conveying blocking driving member 517 is connected to the control mechanism, and a vertical stop plate 5171 is fixedly disposed at the end of the output end of the second conveying blocking driving member 517. When the tool 400 to be baked is located at the output end of the first conveying belt 511, the control mechanism can start the second conveying blocking driving member 517, and the output end of the second conveying blocking driving member 517 extends out to block the tool 400 to be baked through the vertical stop plate 5171, so that potential safety hazards that the tool 400 to be baked falls from the tail end of the output end of the first conveying belt 511 can be avoided.

The following description will proceed with the specific structure of the case 2. Referring to fig. 6, the case 2 provided in this embodiment further includes a uniform heating member 23 and a side plate 24, wherein the uniform heating member 23 is fixedly disposed at the bottom of the case 2; along the direction of motion of horizontal perpendicular to feeding impeller 62 (i.e. along the direction shown by the Y axis), each of the opposite sides of box 2 is provided with a side plate 24, wherein an air inlet channel and a plurality of air inlet holes are arranged in one side plate 24, the air inlet channel is communicated with the air outlet of uniform heating member 23, and the air inlet holes are communicated with baking area 22 in one-to-one correspondence, an air outlet channel and a plurality of air outlet holes are arranged in the other side plate 24, and the air outlet channel is communicated with the air inlet of uniform heating member 23, and the air outlet holes are communicated with baking area 22 in one-to-one correspondence. In this way, by means of the uniform heating element 23 (for example, an air heater may be used), the hot air can circulate in the box 2 (in the circulation direction shown by the arrow in fig. 6), and a similar or identical baking temperature is provided for each layer of baking area 22, so that the baking temperature of each layer of baking area 22 can be stably maintained between 45 ° and 55 ° for example, so as to ensure the curing efficiency of the AB glue, save the baking time, and also help to reduce the energy consumption cost.

Optionally, in this embodiment, a temperature display 25 is provided in each layer of the baking area 22, so that a person skilled in the art can observe the temperature change of each layer of the baking area 22 in real time, thereby facilitating management and temperature control.

Optionally, in this embodiment, as shown in fig. 8 and 9, the automatic pressure-maintaining hot air oven further includes an oven discharging mechanism 7, where the oven discharging mechanism 7 includes a discharging lifting component 71, a discharging conveying belt 72 and a discharging pushing member 73, which are all connected to the control mechanism. The discharging lifting assembly 71 comprises a discharging lifting frame 711 and a discharging lifting table 712, the discharging lifting frame 711 is fixedly arranged between the outlet of the box body 2 and the discharging conveying belt 72 along the vertical direction, and the discharging lifting table 712 can slide on the discharging lifting frame 711 under the driving action of the discharging lifting driving piece 713; the input end and the output end of the discharging conveyor 72 are respectively connected with the discharging lifting component 71 and the pressurizing tool taking mechanism 3, and can convey the baked tool 500; the discharging pushing member 73 is movably arranged in the box 2 in a direction approaching to or separating from the discharging conveyor 72, and can push the baked tooling 500 on the discharging lifting platform 712 onto the discharging conveyor 72.

Illustratively, after baking is completed, the number of layers of the baked tooling 500 is first lifted to the baking area 22 where the baked tooling 500 is located by the discharging lifting platform 712, and then the baked tooling 400 on the feeding lifting platform 632 can push the baked tooling 500 in the baking area 22 onto the discharging lifting platform 712 under the pushing action of the second feeding pushing member 62, at this time, the discharging lifting platform 712 descends, and the height of the baked tooling 500 is reduced to be consistent with the height of the discharging pushing member 73. Then the discharging pushing member 73 is started, and the output end of the discharging pushing member 73 stretches out and moves along the direction close to the discharging conveying belt 72, so that the baked tool 500 on the discharging lifting platform 712 is pushed onto the discharging conveying belt 72, and the baked tool 500 is conveyed to the pressurizing tool taking mechanism 3 through the discharging conveying belt 72, so that the pressurizing tool 200 in the baked tool 500 is taken down. Through the arrangement, the automatic pressure-maintaining hot air oven can realize the beneficial effects of automatic blanking and automatic transportation of the tool 500 to the position of the pressurizing tool mechanism 3 after baking through the oven discharging mechanism 7, thereby further reducing human intervention and ensuring stable production process and high efficiency.

It should be emphasized that, in this embodiment, as shown in fig. 8, when the ejection pusher 73 is in the contracted state (i.e. not activated), the ejection pusher 73 is received in the position below the bottommost baking area 22 of the case 2, so that the height of the ejection pusher 73 is lower than the bottommost baking area 22, and thus, after the ejection pusher 73 is activated and extended, each layer of baking area 22 can be avoided, and interference and obstruction to the baking process in the multi-layer baking area 22 during the movement of the ejection pusher 73 are prevented.

Optionally, the oven mechanism 7 provided in this embodiment further includes a tool shifting assembly 74, where the tool shifting assembly 74 is movably disposed on the discharging lifting platform 712 along the Y axis direction and is used for carrying the post-baking tool 500, after the post-baking tool 500 is pushed onto the tool shifting assembly 74 by the discharging pushing member 73, the tool shifting assembly 74 moves a distance along a direction away from the outlet of the box 2 along with the post-baking tool 500, so as to avoid a part of the exposed tool 400 to be baked in the box 2, and avoid the collision between the discharging lifting platform 712 and the tool 400 to be baked in the box 2 in the descending process, thereby ensuring the safety of both the post-baking tool 500 and the tool 400 to be baked.

Optionally, as shown in fig. 1 and 11, the oven discharging mechanism 7 provided in this embodiment further includes a conversion transmission belt 75 and a conversion pushing driving member 76, both connected to the control mechanism, where the conversion transmission belt 75 extends along the Y axis direction, and an input end and an output end of the conversion transmission belt 75 are respectively connected to an output end of the discharge transmission belt 72 and the pressurizing tool taking mechanism 3; the output end of the conversion pushing driving piece 76 can move in a telescopic manner along the Y-axis direction and is arranged at the junction of the conversion transmission belt 75 and the discharging conveying belt 72, so that under the pushing action of the conversion pushing driving piece 76, the baked tool 500 on the discharging conveying belt 72 can be transferred to the conversion transmission belt 75 to move continuously until moving to a position (namely the second station mentioned above) opposite to the pressurizing tool taking mechanism 3, and on the premise of meeting the layout of each mechanism of the automatic pressure-maintaining hot air oven, the baked tool 500 can be automatically transferred to the pressurizing tool taking mechanism 3 so as to facilitate the subsequent operation steps.

Specifically, referring to fig. 10 and 11, the pressurizing tool mechanism 3 provided in this embodiment includes a second support frame 31, a first pressurizing driving assembly 32, a second pressurizing driving assembly 33, and a second clamping jaw 34. Wherein the second supporting frame 31 is fixedly arranged on the horizontal plane; the first pressurizing and taking driving assembly 32 comprises a third sliding block 321, a third sliding rail 322 and a first pressurizing and taking driving piece 323, wherein the first pressurizing and taking driving piece 323 and the third sliding rail 322 are fixedly arranged on the second supporting frame 31, and the output end of the first pressurizing and taking driving piece 323 is connected with the third sliding block 321 so that the third sliding block 321 can slide on the third sliding rail 322 along the direction shown by the X axis in the figure; the second pressurizing and taking driving assembly 33 comprises a fourth sliding block 331, a fourth sliding rail 332 and a second pressurizing and taking driving member 333, wherein the second pressurizing and taking driving member 333 and the fourth sliding rail 332 are fixedly arranged at the end part of the third sliding block 321 along the vertical direction, and the output end of the second pressurizing and taking driving member 333 is connected to the fourth sliding block 331 so that the fourth sliding block 331 can slide on the fourth sliding rail 332 along the vertical direction; the second clamping jaw 34 is fixedly arranged on the fourth slider 331. It should be noted that, in this embodiment, the second station is also parallel to the moving direction of the pressurizing tool 200 that is returned to the pressurizing tool mechanism 1 along the X axis, so that the obstruction of the returning pressurizing tool 200 to the movement of the product tool 100 can be avoided, and the independent circulation of the backflow path of the pressurizing tool 200 is realized.

Through setting up first pressurization drive assembly 32 and second pressurization drive assembly 33 of getting, can make second clamping jaw 34 can be respectively along X axle direction and vertical direction adjustment actual clamping position to be convenient for fix to the most accurate centre gripping position, prevent pressing from both sides the off-set and lead to pressurization frock 200 deformation to destroy, and then improved loudspeaker spare part 110's security.

Further, as shown in fig. 1, 12 and 13, the oven mechanism 7 further includes a discharging mechanism 8 connected to the control mechanism, where the discharging mechanism 8 is located at a downstream position of the pressurizing tool mechanism 3, and is capable of placing the product tool 100 after the pressurizing tool 200 is removed at the discharge end 600.

Specifically, as shown in fig. 12 and 13, the blanking mechanism 8 includes a tooling wire passing assembly 81 and a blanking assembly 82, wherein the tooling wire passing assembly 81 includes a wire passing transmission belt 811 and a correcting member 812, an input end of the wire passing transmission belt 811 is connected to an output end of the converting transmission belt 75, and an output end of the wire passing transmission belt 811 is connected to the discharging end 600, so that the purpose of moving the product tooling 100 on the converting transmission belt 75 towards the direction of the discharging end 600 is achieved; the correcting piece 812 is arranged on the line passing conveying belt 811, the correcting piece 812 comprises a position sensor, an electric cylinder and a positioning clamp, wherein the position sensor can detect whether the product tool 100 on the line passing conveying belt 811 is deflected in position, the electric cylinder can adjust and correct the position of the product tool 100 in a pushing mode, the whole product tool 100 can be placed on the line passing conveying belt 811, and the positioning clamp can position the product tool 100 to ensure that the correct position is kept in the transportation process.

More specifically, in the present embodiment, the blanking assembly 82 includes a blanking frame 821, a fifth slide rail 822, a fifth slide block 823, a sixth slide rail 824, a sixth slide block 825, and a third jaw 826, wherein the blanking frame 821 is fixedly disposed on a horizontal plane; the fifth sliding rail 822 extends along the Y-axis direction and is fixedly connected to the discharging frame 821 so as to realize butt connection with the discharging end 600 extending along the Y-axis direction; the fifth slide block 823 is slidably arranged on the fifth slide rail 822 along the Y-axis direction; the sixth slide rail 824 is fixedly connected to the fifth slide block 823 in the vertical direction; the sixth slider 825 is slidably disposed on the sixth slide 824 in the vertical direction; third jaw 826 is fixedly coupled to sixth slider 825. Through the above-mentioned unloading mechanism 8 that is connected with control mechanism, not only can guarantee through unloading subassembly 82 that product frock 100 can be transferred to along the discharge end 600 that the Y axle was prolonged to set up safely and stably, but also can realize making the automatic purpose of transferring to discharge end 600 of product frock 100 to further reduced human intervention, alleviateed staff's operating pressure greatly.

The pressurizing tool detection return mechanism 4 provided in this embodiment will be specifically described below. Specifically, referring to fig. 14, the pressurization tooling detection return mechanism 4 includes a return belt assembly 41 and a detection member both connected to the control mechanism, wherein an input end and an output end of the return belt assembly 41 are respectively connected to the pressurization tooling taking mechanism 3 and the pressurization tooling releasing mechanism 1, and are used for carrying the pressurization tooling 200; the detecting member is then capable of detecting the actual position of the product fixture 100.

When the pressurizing tool mechanism 3 is specifically used, after the pressurizing tool 200 is placed on the return belt assembly 41, the return belt assembly 41 can carry out return transportation along the direction of the pressurizing tool 200, when the detecting piece detects that the pressurizing tool 200 is arranged, the first clamping jaw 14 on the pressurizing tool mechanism 1 can automatically and sequentially move along the X-axis direction and the vertical direction under the action of the control mechanism, so that the pressurizing tool 200 on the return belt assembly 41 is obtained, then the pressurizing tool 200 is reversely moved, and the pressurizing tool 200 is moved to be positioned right above the first conveying belt 511, so that the pressurizing tool 100 is folded.

Still more particularly, with continued reference to fig. 14, the sensing member includes a first sensor 421, the first sensor 421 being disposed at the output of the return belt assembly 41; in addition, the pressurization tool detects the return mechanism 4 and further includes a first blocking interval induction driving member 43, the first blocking interval induction driving member 43 is disposed at an upstream position of the first sensor 421 along an extending direction of the return belt assembly 41, and an output end of the first blocking interval induction driving member 43 can stretch along a vertical direction. When the first sensor 421 detects that the pressurizing tool 200 on the return belt assembly 41 is at the first designated position, the first sensor 421 can send a start signal to the first blocking interval sensing driver 43, so that the output shaft of the first blocking interval sensing driver 43 can extend out and abut against the return belt assembly 41. Because the plurality of pressurizing tools 200 are arranged on the return belt assembly 41, the first blocking interval is used for sensing the blocking of the driving piece 43, so that two adjacent pressurizing tools 200 can keep a certain interval distance, for example, 20mm intervals, so as to ensure that the first clamping jaw 14 cannot lift the next pressurizing tool 200, or the condition that the previous pressurizing tool 200 cannot be clamped by the first clamping jaw 14 due to the extrusion of the two adjacent pressurizing tools 200 can be avoided. It should be noted that, the first designated position is shown as the pressurization tool 200 being located close to the output end of the return belt assembly 41.

More specifically, the pressurization tooling detection return mechanism 4 further includes a second blocking interval sensing driver 44, and the second blocking interval sensing driver 44 is disposed at an upstream position of the first blocking interval sensing driver 43 along the extending direction of the return belt assembly 41 and is in signal connection with the first blocking interval sensing driver 43. When the first blocking interval induction driving piece 43 detects that the pressurizing tools 200 on the return belt assembly 41 are at the second designated position during specific use, the first blocking interval induction driving piece 43 sends a starting signal to the second blocking interval induction driving piece 44, so that an output shaft of the second blocking interval induction driving piece 44 can extend out and abut against the return belt assembly 41, and the pressurizing tools 200 at two ends of the second blocking interval induction driving piece 44 can be subjected to interval treatment, so that every two adjacent pressurizing tools 200 on the whole return belt assembly 41 can be separated by a distance, and the condition that the pressurizing tools 200 are extruded and bumped is avoided. The second designated position is that the pressurizing tool 200 is located close to the surface of the first blocking interval sensing driver 43 opposite to the surface of the second blocking interval sensing driver 44.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. Automatic pressurize hot-blast oven can toast a plurality of loudspeaker spare part (110) that set up on product frock (100), its characterized in that, including all being connected in control mechanism put pressurization frock mechanism (1), box (2), get pressurization frock mechanism (3) and pressurization frock and detect passback mechanism (4), wherein:

the pressurizing tool mechanism (1) is positioned at the upstream position of the box body (2) and can stack the pressurizing tool (200) towards the top of the product tool (100) to form a tool (400) to be baked, and a plurality of pressurizing fixtures (210) which are arranged corresponding to the horn parts (110) are arranged on the pressurizing tool (200);

The box body (2) is used for baking the tool (400) to be baked so as to form a baked tool (500);

the pressurizing tool taking mechanism (3) is positioned at the downstream position of the box body (2), and the pressurizing tool taking mechanism (3) can take down the pressurizing tool (200) in the baked tool (500);

the pressurizing tool detection return mechanism (4) is connected to the pressurizing tool taking mechanism (3) and the pressurizing tool placing mechanism (1), the pressurizing tool (200) can be taken down and returned to the pressurizing tool placing mechanism (1), and the control mechanism can be controlled to start the pressurizing tool placing mechanism (1) or the pressurizing tool taking mechanism (3) according to the detected actual position of the product tool (100), so that the pressurizing tool (200) is overlapped on the product tool (100) or the pressurizing tool (200) in the baked tool (500) is taken down.

2. The automatic pressure maintaining hot air oven according to claim 1, wherein the pressurizing tool detection return mechanism (4) comprises a return belt assembly (41) and a detection piece, both of which are connected to the control mechanism, the input end and the output end of the return belt assembly (41) are respectively connected to the pressurizing tool taking mechanism (3) and the pressurizing tool releasing mechanism (1) and can bear the pressurizing tool (200), and the detection piece is configured to detect the actual position of the product tool (100).

3. The automatic pressure maintaining hot air oven according to claim 2, wherein,

the pressurizing tool (200) is provided with a plurality of pressurizing tools;

the detection piece comprises a first sensor (421), and the first sensor (421) is arranged at the output end of the return belt assembly (41);

the pressurizing tool detection return mechanism (4) further comprises a first blocking interval induction driving piece (43), the first blocking interval induction driving piece (43) is located at the upstream position of the first inductor (421) along the conveying direction of the return belt assembly (41), and when the first inductor (421) detects that the pressurizing tool (200) is located on the return belt assembly (41) and is located at a first designated position, the first inductor (421) can send signals to the first blocking interval induction driving piece (43) so that an output shaft of the first blocking interval induction driving piece (43) extends out to block the adjacent pressurizing tool (200).

4. The automatic pressure maintaining hot air oven according to claim 3, wherein,

the pressurizing tool detection return mechanism (4) further comprises a second blocking interval induction driving piece (44), and the second blocking interval induction driving piece (44) is positioned at the upstream position of the first blocking interval induction driving piece (43) along the conveying direction of the return belt assembly (41);

When the second blocking interval induction driving piece (44) detects that the pressurizing tool (200) is on the return belt assembly (41) and is at a second designated position, an output shaft of the second blocking interval induction driving piece (44) can extend out so as to block the adjacent pressurizing tool (200).

5. The automatic pressure-maintaining hot air oven according to claim 1, further comprising a feeding and conveying mechanism (5), wherein the feeding and conveying mechanism (5) comprises a feeding and conveying assembly (51) and a pneumatic pushing assembly (52) which are both connected to the control mechanism, an input end of the feeding and conveying assembly (51) is connected to a feeding end (300), an output end of the feeding and conveying assembly (51) is connected to the box body (2), the pressurizing tool mechanism (1) is located in the middle of the feeding and conveying assembly (51), and the pneumatic pushing assembly (52) is movably arranged on the feeding and conveying assembly (51) and can push a product tool (100) located at the feeding end (300) into the box body (2) through the feeding and conveying assembly (51).

6. The automatic pressure-maintaining hot air oven according to claim 5, wherein the feeding and conveying assembly (51) comprises a first conveying belt (511) and a first conveying blocking driving piece (514) which are both connected to the control mechanism, two ends of the first conveying belt (511) are respectively connected to the feeding end (300) and the box body (2), the pressurizing tool mechanism (1) is located in the middle of the first conveying belt (511), and the pressurizing tool detection return mechanism (4) can control the control mechanism to start the first conveying blocking driving piece (514) according to the detected actual position of the product tool (100) so that the output end of the first conveying blocking driving piece (514) stretches out in the vertical direction and blocks the product tool (100).

7. The automatic pressure maintaining hot air oven according to claim 6, wherein the product fixture (100) is provided with a positioning hole; the feeding conveying assembly (51) further comprises a jacking positioning driving piece (516), the jacking positioning driving piece (516) is located at the bottom of the first conveying belt (511) and connected to the control mechanism, a positioning pin (5161) is arranged at the output end of the jacking positioning driving piece (516), and the control mechanism can drive the output end of the jacking positioning driving piece (516) to extend out in the vertical direction, so that the positioning pin (5161) is limited and inserted into the positioning hole.

8. The automatic dwell hot air oven according to claim 5, characterized in that the feed conveyor mechanism (5) further comprises an oven feed mechanism (6), the oven feed mechanism (6) comprising a bracket (61) and a feed pusher (62), wherein:

the bracket (61) is fixedly arranged and is provided with a second sensor (611);

the feeding pushing piece (62) is movably arranged on the support (61) along the direction close to or far away from the inlet of the box body (2), the feeding pushing piece (62) and the second inductor (611) are both connected to the control mechanism, and when the second inductor (611) detects that the tool (400) to be baked is at a preset position, the control mechanism can be controlled to start the feeding pushing piece (62) so as to push the tool (400) to be baked into the box body (2) through the feeding pushing piece (62).

9. The automatic pressure-maintaining hot air oven according to claim 8, characterized in that a plurality of box plates (21) are fixedly arranged in the box body (2) along the vertical direction so as to form a multi-layer baking area (22) in the box body (2);

the oven mechanism (6) further comprises a feeding lifting assembly (63), the feeding lifting assembly (63) comprises a feeding lifting frame (631) and a feeding lifting table (632), the feeding lifting frame (631) is fixedly arranged between the support (61) and the inlet of the box body (2) along the vertical direction, the feeding lifting table (632) is slidably arranged on the feeding lifting frame (631) along the vertical direction, and the feeding lifting table (632) can receive the tool (400) to be baked pushed out from the pressurizing tool taking mechanism (3) and can be lifted to the baking area (22) of multiple layers respectively.

10. The automatic pressure-maintaining hot air oven according to claim 9, characterized in that the oven inlet mechanism (6) further comprises a buffer platform (64), wherein the buffer platform (64) is positioned between the output end of the feeding and conveying assembly (51) and the inlet of the box body (2) and is level with the height of the output end of the feeding and conveying assembly (51), so that the buffer platform (64) can receive and buffer the pushed-out tool (400) to be baked;

The feeding pushing piece (62) comprises a first pushing piece (621) and a plurality of second pushing pieces (622), the first pushing pieces (621) are located at the bottoms of the second pushing pieces (622) along the vertical direction, the buffer storage platforms (64) are correspondingly arranged on the first pushing pieces (621), the second pushing pieces (622) are correspondingly arranged in the baking areas (22), the first pushing pieces (621) can push the to-be-baked tools (400) on the buffer storage platforms (64) onto the feeding lifting platforms (632), and the second pushing pieces (622) can push the to-be-baked tools (400) on the feeding lifting platforms (632) into the corresponding baking areas (22).

11. The automatic dwell hot air oven according to claim 9, characterized in that the box (2) also comprises a uniform heating element (23) and side plates (24), wherein:

the uniform heating piece (23) is fixedly arranged in the box body (2);

along the horizontal perpendicular to the direction of motion of feeding impeller (62), the relative both sides of box (2) respectively are equipped with one curb plate (24), one of them be equipped with inlet channel and a plurality of fresh air inlet in curb plate (24), inlet channel communicate in the gas outlet of even heating member (23), the fresh air inlet one-to-one communicate in toast regional (22), another be equipped with air-out passageway and a plurality of fresh air outlet in curb plate (24), the air-out passageway communicate in the air inlet of even heating member (23), fresh air outlet one-to-one communicates toast regional (22).

12. The automatic dwell hot air oven according to claim 9, further comprising an oven exit mechanism (7), the oven exit mechanism (7) comprising a discharge lift assembly (71), a discharge conveyor belt (72) and a discharge pusher (73) all connected to the control mechanism, wherein:

the discharging lifting assembly (71) comprises a discharging lifting frame (711) and a discharging lifting table (712), the discharging lifting frame (711) is fixedly arranged between the outlet of the box body (2) and the discharging conveying belt (72) along the vertical direction, and the discharging lifting table (712) is slidably arranged on the discharging lifting frame (711) along the vertical direction;

the input end and the output end of the discharging conveying belt (72) are respectively connected with the discharging lifting assembly (71) and the pressurizing tool mechanism (3) and are used for conveying the baked tool (500);

the discharging pushing piece (73) can be movably arranged in the box body (2) towards a direction close to or far away from the discharging conveying belt (72), and can push the baked tool (500) on the discharging lifting table (712) onto the discharging conveying belt (72).

13. The automatic pressure maintaining hot air oven according to claim 1, further comprising a blanking mechanism (8) connected to the control mechanism, wherein the blanking mechanism (8) is located at a position downstream of the pressurizing tool mechanism (3) and is configured to be able to place the product tool (100) after the pressurizing tool (200) is removed to a discharge end (600).