CN113911669A - Hot pressing production line for door processing - Google Patents

Abstract

The invention discloses a hot-pressing production line for door processing, which relates to the technical field of hot-pressing forming of plastic films and is suitable for hot-pressing forming processing of door products after film covering, under the arrangement of a feeding device, a double-layer pushing device, a hot press body, a discharging device and a buffer platform, an automatic circulating hot-pressing forming processing technology of film covering on the surfaces of the door products can be realized, a large amount of labor cost is reduced, automatic high-quality and high-efficiency production is realized, under the arrangement of a first conveying unit, a second conveying unit, an edge guide assembly and an adsorption assembly, stable and accurate conveying of materials with larger weight can be realized, the processing precision of subsequent hot-pressing forming equipment is further ensured, and the product quality is ensured; the conveying belt, the sliding frame and the material are always kept in a relatively static state, the stability of the material in the conveying process is guaranteed through the upper layer and the lower layer, friction between the material and the conveying belt is reduced, and the quality of the material to be processed is guaranteed.

Description

Hot pressing production line for door processing

Technical Field

The invention relates to the technical field of plastic film hot-press molding, in particular to a hot-press production line for door processing.

Background

The existing multilayer hot press needs to separate all adjacent hot pressing plates when feeding and discharging materials, then manually sends products into the space between the adjacent hot pressing plates, and then all the hot pressing plates are closed to realize hot press molding of the products.

Because the height of a plurality of material feedstock channel that form behind the separation of different hot pressboards differs, such mode of setting up can only adopt the artifical mode of material loading one by one just can realize the simultaneous processing of a plurality of products, and production efficiency is low, and can't realize the automated production of product.

Particularly for the film-covered door product with larger weight, the feeding mode of multi-person carrying has great labor intensity and low efficiency.

Disclosure of Invention

The invention aims to provide a hot-pressing production line for door processing, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a hot pressing production line for door processing is suitable for hot pressing forming processing of a film-coated rear door product, and comprises a feeding device, a pushing device, a hot press body, a discharging device and a buffer platform which are sequentially arranged;

the loading device comprises a mounting frame, wherein a liftable bearing frame is arranged on the mounting frame, a raw material inlet and a raw material outlet are respectively arranged at two ends of the bearing frame, a conveying unit used for conveying a door product coated with a film from the raw material inlet to the raw material outlet is arranged on the bearing frame, an edge leaning mechanism used for positioning the edge leaning of the door product coated with the film is arranged on the bearing frame, the conveying unit and the edge leaning mechanism do not work simultaneously, and an auxiliary lifting mechanism used for lifting and lifting the door product and separating from the conveying unit when the door product coated with the film is positioned by the edge leaning mechanism is arranged on the bearing frame;

the pushing device comprises a support, wherein a second conveying unit is arranged on the inner side of the support, a first conveying unit is arranged above the support, a door product conveying channel is formed between the first conveying unit and the second conveying unit, the two ends of the conveying channel in the length direction are respectively a feeding end and a discharging end, the first conveying unit and the second conveying unit can synchronously convey door products, and the conveying speed can be adjusted in a segmented manner;

the hot press body comprises an outer frame body, wherein a balance weight platform and a supporting base which can be synchronously lifted are arranged on the inner side of the outer frame body from top to bottom, a balance weight is arranged at the top of the balance weight platform, a first hot pressing plate is arranged at the bottom of the balance weight platform, a plurality of second hot pressing plates are arranged at the top of the supporting base, equal-height columns are arranged at the tops of the second hot pressing plates, a synchronous lifting unit which drives the balance weight platform and the supporting base to synchronously lift is arranged at the top of the outer frame body, two separating supporting pieces which can separate adjacent hot pressing plates to form a single material feeding channel with fixed height are arranged on the outer frame body, one side of the material feeding channel, which is close to the pushing device, is an inlet side, and one side of the material feeding channel, which is close to the blanking device, is an outlet side;

the pushing device is used for pushing the door product to be processed to the blanking device while sending the door product to be processed to the material feeding channel;

and the blanking device is used for conveying the door product to the buffer storage platform from the outlet side of the material feeding channel.

The conveying unit comprises a rotatable driving roller arranged on the bearing frame, a plurality of driven rollers arranged on the bearing frame and capable of rotating synchronously with the driving roller, and a third servo motor for driving the driving roller to rotate;

a second lifting plate is hinged in the mounting frame, the second lifting plate is hinged with a first lifting plate through a middle rotating shaft, a second optical axis is arranged on the bearing frame, one end of the second lifting plate is hinged with a second optical axis sliding block, and the second optical axis sliding block is connected with the second optical axis in a sliding manner;

a rotatable screw rod and a screw rod sliding block capable of reciprocating along the screw rod are arranged on the inner side of the mounting frame, a fourth servo motor capable of driving the screw rod to rotate is arranged on the inner side of the mounting frame, a first optical axis sliding block which follows the screw rod sliding block is hinged to one end of a first lifting plate, a first optical axis is arranged on the mounting frame, the first optical axis sliding block is connected with the first optical axis in a sliding mode, and the other end of the first lifting plate is hinged to the bearing frame;

the side-leaning mechanism comprises a rodless cylinder arranged on the bearing frame, and a sliding table of the rodless cylinder is provided with a rotatable side rolling sleeve;

the auxiliary lifting mechanism comprises a lower box body arranged on the bearing frame and an upper box body matched with the lower box body, a lifting cylinder is hinged to the lower box body and hinged to the upper box body, a side plate is arranged between the upper box body and the lower box body, two ends of the side plate are hinged to the upper box body and the lower box body respectively, a plurality of universal balls are arranged on the top surface of the upper box body, and the plurality of universal balls are arranged along the motion direction of the sliding table of the rodless cylinder.

The first conveying unit comprises a sliding frame capable of moving back and forth along a conveying channel, a plurality of adsorption components used for grabbing door products are arranged on the sliding frame, the second conveying unit comprises a conveying belt used for conveying the door products, the displacement of the sliding frame and the displacement of the conveying belt in unit time along the length direction of the conveying channel are the same, a plurality of detection plates are arranged on the support along the length direction of the conveying channel of the door products, mounting holes are formed in the detection plates, photoelectric sensors are arranged in the mounting holes, and detection blocks matched with the photoelectric sensors are arranged on the sliding frame;

the first conveying unit further comprises a hook claw assembly which is arranged on one side, close to the discharge end, of the sliding frame and used for supporting the end portion of a door product, the hook claw assembly comprises a rotating shaft and a transverse mounting plate, the rotating shaft is arranged on the sliding frame in a rotatable mode, the transverse mounting plate is connected with the rotating shaft through a longitudinal connecting plate, a plurality of nail teeth are arranged on one side, close to the feed end, of the transverse mounting plate at intervals, a turnover cylinder is hinged to the sliding frame, and a piston rod of the turnover cylinder is hinged to the longitudinal connecting plate.

Conveying passageway one side is provided with the edge direction subassembly that matches with the mechanism that leans on the limit, and the edge direction subassembly is including setting up the shell on the support, and shell one side opening and inside are provided with a plurality of rotatable side deflector rolls.

The second conveying unit also comprises a lifting guide structure arranged on one side of the discharge end and used for lifting the end part of the film-coated back door product, a gap is arranged between the lifting guide structure and the discharge end, an extension plate is arranged on the bracket, a driven conveying shaft is arranged on the extension plate, an upper support plate is arranged on the extension plate, a lifting guide structure is arranged on the upper support plate, the lifting guide structure comprises a second lifting cylinder, a first special-shaped support plate, an outer connecting rod, an inner connecting rod, a second special-shaped support plate, a movable frame and a guide roller, the bottom of the upper support plate is provided with the first special-shaped support plate, the inner side of the first special-shaped support plate is provided with the second special-shaped support plate, the second lifting cylinder is hinged with the first special-shaped support plate, the tail end of a piston rod of the second lifting cylinder is hinged with the outer connecting rod and the inner connecting rod, the outer connecting rod is hinged with the second special-shaped support plate, the movable frame is hinged with the movable frame, the movable frame is connected with the second special-shaped support plate in a sliding mode, and a rotatable guide roller is arranged on the movable frame.

The synchronous lifting unit comprises a fifth servo motor and a plurality of driving part transmission groups, the fifth servo motor and the plurality of driving part transmission groups are arranged at the top of the outer frame body, each driving part transmission group comprises a driving part rotating shaft which is arranged on the outer frame body and can rotate, driving part chain wheels are arranged at two ends of each driving part rotating shaft, a driven transmission roller group is arranged on each driving part rotating shaft, a main transmission roller group is arranged on an output shaft of the fifth servo motor, and the main transmission roller group is in transmission connection with the driven transmission roller group;

the supporting base is provided with a lifting part chain wheel which is in one-to-one correspondence with the driving part chain wheel, and the driving part chain wheel is in transmission connection with the lifting part chain wheel.

The chain wheel of the driving part is in transmission connection with the chain wheel of the lifting part through a lifting chain, a transmission connecting piece is arranged on the supporting base, a first adjusting piece is arranged at one end of the lifting chain, the first adjusting piece is connected with the transmission connecting piece through a first adjusting bolt, a second adjusting piece is arranged at the other end of the lifting chain, and the second adjusting piece is connected with the transmission connecting piece through a second adjusting bolt.

The counterweight platform is provided with a plurality of counterweight part transmission groups in one-to-one correspondence with the driving part transmission groups, each counterweight transmission group comprises a counterweight part rotating shaft which is arranged on the counterweight platform in a rotatable mode, first gears are arranged at two ends of each counterweight part rotating shaft, a plurality of racks in one-to-one correspondence with the first gears are arranged on the inner side of the outer frame body, the first gears are meshed with the racks, a plurality of second gears in one-to-one correspondence with the racks are arranged on the supporting base, and the second gears are meshed with the racks.

The balance weight platform, the first hot pressing plate and the second hot pressing plate are all provided with a plurality of special-shaped guide wheels which correspond to the racks one to one and can rotate, first guide inclined planes are arranged on the outer edges of the special-shaped guide wheels, second guide inclined planes matched with the first guide inclined planes are arranged on the racks, and the second guide inclined planes are in rolling connection with the first guide inclined planes.

The separation support piece comprises a positioning column arranged on the outer frame body, a shell is arranged on the positioning column, a separating plate capable of sliding along a special-shaped groove in the shell is arranged in the shell, and a supporting cylinder for driving the separating plate to stretch and slide is arranged on the positioning column.

The invention has the beneficial effects that:

1. under the setting of loading attachment, double-deck pusher, hot press body, unloader and buffer memory platform, can realize the automatic cycle hot briquetting processing technology of door product surface tectorial membrane, reduced a large amount of human costs, realized automatic high-quality high-efficient production.

2. Under the setting of first promotion board, second promotion board, fourth servo motor, lead screw slider, first optical axis and second optical axis, can play the effect that makes the door product behind the tectorial membrane at the high ejection of compact of low level material loading, when guaranteeing the operation of transportation personnel at comfortable high, can also make the back process equipment of the not co-altitude of transport adaptation of door product, like the hot briquetting process, be favorable to realizing the automation of production, improve production efficiency.

3. Under the setting of the edge-leaning mechanism, the edge-leaning positioning of a door product can be realized, the accurate material receiving of the hot press is facilitated, and the product quality is ensured.

4. Under the setting of supplementary lifting mechanism, the door product has become the point contact of door product and universal ball by the line contact on with drive roll and driven voller surface, sets up like this and can avoid the tectorial membrane on door product surface to appear wrinkling's the condition appearance, guarantees product quality.

5. Under the arrangement of the first conveying unit, the second conveying unit, the edge guide assembly and the adsorption assembly, stable and accurate conveying of materials with larger weight can be realized, so that the processing precision of subsequent hot-press forming equipment is ensured, and the product quality is ensured; the conveying belt, the sliding frame and the material are always kept in a relatively static state, the stability of the material in the conveying process is guaranteed through the upper layer and the lower layer, friction between the material and the conveying belt is reduced, and the quality of the material to be processed is guaranteed.

6. Under the setting of first servo motor, second servo motor, photoelectric sensor and detection piece, can control material transportation process speed, make it be in the process of acceleration rate-steadily-speed reduction gradually, avoid the material probably because its self inertia causes the inaccurate condition in the transportation to appear under the circumstances that keeps higher average speed for follow-up hot briquetting equipment can carry out the accurate processing to the material, guarantees product processingquality.

7. Under the setting of adsorption component and colluding claw subassembly, adopt the electro-magnet to adsorb the material cooperation and collude claw subassembly and assist and collude the material, improve the stability in the material transportation process, avoid material inertia to cause the inaccurate condition in material transportation location to appear.

8. Under conveyer belt and lifting guide structure's setting, door plant and conveyer belt take place relative motion's the condition when the ejection of compact under, the door plant will slightly perk can not laminate with the conveyer belt completely, only the door plant trailing edge hugs closely with the conveyer belt, reduces the tectorial membrane face and the membrane material of conveyer belt, and the door plant after avoiding the tectorial membrane appears in the condition of surface scratch, guarantees the quality of door plant ejection of compact.

9. Under the setting of synchronous lift unit and separation support piece for material charge-in passage's position remains fixed throughout, for the realization business turn over material in same position provides probably, is favorable to product automation line's arrangement, provides probably for automatic product business turn over material.

10. Under the arrangement of the fifth servo motor, the driving part transmission set, the first gear, the second gear, the rack and the special-shaped guide wheel, the condition that the product quality is influenced by the inclination of the counterweight platform and the supporting base in the lifting process can be avoided; the stability of hot pressboard can further be improved under the setting on first direction inclined plane and second direction inclined plane, further guarantee product quality.

Drawings

FIG. 1 is a schematic layout of a hot pressing line;

FIG. 2 is a schematic structural view of a feeding device in the present invention;

FIG. 3 is a schematic view of the inner side of the mounting bracket of the present invention;

FIG. 4 is a schematic structural view of an auxiliary lifting mechanism according to the present invention;

FIG. 5 is a schematic structural diagram of a pushing device according to the present invention;

FIG. 6 is a schematic structural diagram of a first conveying unit according to the present invention;

FIG. 7 is a schematic structural view of a hook component and an absorption component of the present invention;

FIG. 8 is a schematic structural view of a second conveying unit according to the present invention;

FIG. 9 is a schematic side view of the second conveying unit according to the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 9 at A according to the present invention;

FIG. 11 is an enlarged, fragmentary, schematic view of FIG. 6 illustrating the present invention;

FIG. 12 is a schematic structural view of a lift guide structure according to the present invention;

FIG. 13 is a schematic view of the construction of the hot press body of the present invention;

FIG. 14 is a schematic top view of the hot press body of the present invention;

FIG. 15 is a schematic illustration of a first product in and out of the present invention;

FIG. 16 is a schematic illustration of the last product in and out of the present invention;

FIG. 17 is an enlarged partial view taken at C of FIG. 13 in accordance with the present invention;

FIG. 18 is an enlarged partial schematic view of the present invention at D in FIG. 15;

FIG. 19 is a schematic view of the structure of the separation support member of the present invention;

FIG. 20 is a schematic view of the structure of the present invention in which the shaped guide wheel is engaged with the rack;

FIG. 21 is a schematic view of an auxiliary support assembly according to the present invention.

In the figure, 1, a feeding device;

1-1, mounting rack; 1-2, carrying frame; 1-3, a driving roller; 1-4, a driven roller; 1-5, a third servo motor; 1-6, a first lifting plate; 1-7, a second lifting plate; 1-8, a middle rotating shaft; 1-9, a fourth servo motor; 1-10, a screw rod; 1-11, a screw rod slide block; 1-12, a first optical axis; 1-13, a first optical axis slider; 1-14, a second optical axis; 1-15, a second optical axis slider; 1-16, rodless cylinder; 1-17, side rollers; 1-18, an auxiliary lifting mechanism; 1-181, lower box body; 1-182, a lifting cylinder; 1-183, side plates; 1-184, an upper box body; 1-185, universal ball;

2. a pushing device;

2-1, a bracket; 2-2, a first conveying unit; 2-22, a vertical plate; 2-23, fixing a platform; 2-24, a sliding frame; 2-25, a first servo motor; 2-26, a transmission shaft; 2-27, supporting guide wheels; 2-28, a first double row sprocket; 2-29, a second double row sprocket; 2-210, a third double sprocket; 2-211, a drive chain; 2-212, a first fixed end; 2-213, a second fixed end; 2-214, a claw component; 2-2141, a rotating shaft; 2-2142, a longitudinal connecting plate; 2-2143, a transverse mounting plate; 2-2144, spike teeth; 2-215, detecting plate; 2-216, mounting holes; 2-217, a detection block; 2-218, an adsorption component; 2-2181, a first connecting rod; 2-2182, a second connecting rod; 2-2183, a third connecting rod; 2-2184 and an electromagnet; 2-2185, a first lifting cylinder; 2-219, a slide rail; 2-220, overturning the cylinder; 2-3, a second conveying unit; 2-31, a second servo motor; 2-32, an active delivery shaft; 2-33, a driven conveying shaft; 2-34, a conveyer belt; 2-39, a first chain; 2-310, a second chain; 2-311, tensioning the conveying roller; 2-5, an edge guide assembly; 2-7, an upper support plate; 2-8, lifting the guide structure; 2-81, a second lifting cylinder; 2-82, a first special-shaped support plate; 2-83, outer connecting rod; 2-84, inner connecting rod; 2-85 parts of a second special-shaped support plate; 2-86 parts of a movable frame; 2-87, guide roller; 2-9, an extension plate;

3. a hot press body;

3-1, an outer frame body; 3-2, a fifth servo motor; 3-3, a main driving roller set; 3-4, a driving part rotating shaft; 3-5, a driven roller group; 3-6, a drive part sprocket; 3-7, a counterweight platform; 3-8, a rack; 3-9, supporting the base; 3-10, a first adjusting piece; 3-11, a first adjusting bolt; 3-12, a second adjusting piece; 3-13, a second adjusting bolt; 3-14, a transmission connecting piece; 3-15, a lifting part chain wheel; 3-16, a counterweight rotating shaft; 3-17, a special-shaped guide wheel; 3-18, contour columns; 3-19, a separation support; 3-191 and a positioning column; 3-192, a housing; 3-193, limit switch; 3-194, a support cylinder; 3-20, a first hot pressing plate; 3-21, a second hot pressing plate; 3-22, an auxiliary support component; 3-221, a telescopic cylinder; 3-222, external connectors; 3-223, sliding sleeves; 3-224, a sliding shaft; 3-225, auxiliary supporting wheels;

4. a blanking device; 5. and (4) a cache platform.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

Referring to fig. 1 to 21, an embodiment of the present invention provides a hot pressing production line for door processing, which is suitable for hot press forming processing of a door product after film covering, and the hot pressing production line includes a feeding device 1, a pushing device 2, a hot press body 3, a discharging device 4, and a buffer platform 5, which are sequentially arranged.

Feeding device

1) Material conveying and lifting

The feeding device 1 comprises a mounting frame 1-1, a liftable bearing frame 1-2 is arranged on the mounting frame 1-1, a raw material inlet and a raw material outlet are formed in two ends of the bearing frame 1-2 respectively, a conveying unit used for conveying a door product subjected to film covering to the raw material outlet from the raw material inlet is arranged on the bearing frame 1-2, an edge leaning mechanism used for positioning the door product subjected to film covering along an edge is arranged on the bearing frame 1-2, the conveying unit and the edge leaning mechanism do not work simultaneously, and an auxiliary lifting mechanism 1-18 used for lifting the door product and separating from the conveying unit after lifting when the door product subjected to film covering is positioned along the edge is arranged on the bearing frame 1-2.

The conveying unit comprises a rotatable driving roller 1-3 arranged on the bearing frame 1-2, a plurality of driven rollers 1-4 arranged on the bearing frame 1-2 and capable of rotating synchronously with the driving roller 1-3, and a third servo motor 1-5 for driving the driving roller 1-3 to rotate, wherein the driving roller 1-3 and the driven rollers 1-4 are in transmission connection through chains or belts, and then the third servo motor 1-5 is started to realize synchronous rotation of the driving roller 1-3 and the driven rollers 1-4, so that the door product after film coating can be conveyed from a raw material inlet to a raw material outlet.

A second lifting plate 1-7 is hinged in the mounting frame 1-1, the second lifting plate 1-7 is hinged with a first lifting plate 1-6 through a middle rotating shaft 1-8, a second optical axis 1-14 is arranged on the bearing frame 1-2, one end of the second lifting plate 1-7 is hinged with a second optical axis slider 1-15, and the second optical axis slider 1-15 is in sliding connection with the second optical axis 1-14;

the inner side of the mounting frame 1-1 is provided with a rotatable screw rod 1-10 and a screw rod sliding block 1-11 capable of reciprocating along the screw rod 1-10, the inner side of the mounting frame 1-1 is provided with a fourth servo motor 1-9 capable of driving the screw rod 1-10 to rotate, one end of a first lifting plate 1-6 is hinged with a first optical axis sliding block 1-13 capable of following the screw rod sliding block 1-11, the mounting frame 1-1 is provided with a first optical axis 1-12, the first optical axis sliding block 1-13 is connected with the first optical axis 1-12 in a sliding mode, and the other end of the first lifting plate 1-6 is hinged with a bearing frame 1-2.

And starting the fourth servo motor 1-9, driving the screw rod 1-10 to rotate through a chain or a belt, further driving the screw rod sliding block 1-11 to reciprocate, driving the first optical axis sliding block 1-13 to reciprocate through the reciprocating movement of the screw rod sliding block 1-11, further driving the upper end parts of the first lifting plate 1-6 and the second lifting plate 1-7 to ascend or descend, and further realizing the ascending and descending of the bearing frame 1-2.

The effect of feeding the door products after film coating at a low position and discharging the door products at a high position can be achieved, the operation of transfer personnel at a comfortable height is ensured, and meanwhile, the conveying of the door products can be matched with the height of the subsequent pushing device 2 and the height of a single material feeding channel with fixed height;

the high-position full-automatic hot-pressing processing technology is realized after the film-coated rear door product is manually fed at the low position, and the production efficiency is improved.

In order to secure the stability of the feeding platform, the number of the first lifting plates 1-6, the second lifting plates 1-7, the first optical axes 1-12, the second optical axes 1-14, etc. may be set to two, which is arranged in a manner as shown in fig. 3.

2) Side-by-side positioning of materials

The side abutting mechanism comprises rodless cylinders 1-16 arranged on the bearing frames 1-2, rotatable side rolling sleeves 1-17 are arranged on sliding tables of the rodless cylinders 1-16, and the position of the final material side abutting is matched with the position of the subsequent edge guide assembly 2-5, namely, the side edge of the material after side abutting is in contact with the side guide roller in the guide assembly 2-5 when conveyed to the subsequent pushing device 2, and the position of the side guide roller is the edge of a processing area of the hot press body 3.

In order to realize accurate processing of materials, the invention is provided with the edge leaning mechanism, but the following problems can occur in the process of the edge leaning mechanism:

in the process of positioning the materials close to the edge, the door product coated with the film can slide along the axial direction of the driving roller 1-3 and the driven roller 1-4, namely the film can slide relative to the top surface of the door product, and the film on the surface of the door product is easy to wrinkle, so that the product quality is influenced.

It is in view of the above that the loading device 1 is provided with auxiliary lifting mechanisms 1-18.

The auxiliary lifting mechanism 1-18 comprises a lower box body 1-181 arranged on the bearing frame 1-2 and an upper box body 1-184 matched with the lower box body 1-181, a lifting cylinder 1-182 is hinged on the lower box body 1-181, the lifting cylinder 1-182 is hinged with the upper box body 1-184, a side plate 1-183 is arranged between the upper box body 1-184 and the lower box body 1-181, two ends of the side plate 1-183 are respectively hinged with the upper box body 1-184 and the lower box body 1-181, the top surface of the upper box body 1-184 is provided with a plurality of universal balls 1-185, and the universal balls 1-185 are arranged along the movement direction of a sliding table of the rodless cylinder 1-16.

When the door product needs to be positioned close to the edge, the conveying of the conveying unit is stopped, the lifting air cylinders 1-182 are started, the upper box bodies 1-184 are lifted, the door product after being coated with the film is separated from the driving rollers 1-3 and the driven rollers 1-4, then the rodless air cylinders 1-16 are started, the door product can be pushed by the side rolling sleeves 1-17 to be close to the edge, in the process of driving the edge, the linear contact of the door product with the surfaces of the driving rollers 1-3 and the driven rollers 1-4 is changed into the point contact of the door product with the universal balls 1-185, and therefore the situation that the film coating on the surface of the door product wrinkles can be avoided, and the product quality is guaranteed.

Second, the pusher

The pushing device 2 comprises a support 2-1, a second conveying unit 2-3 is arranged on the inner side of the support 2-1, a first conveying unit 2-2 is arranged above the support 2-1, a door product conveying channel is formed between the first conveying unit 2-2 and the second conveying unit 2-3, the two ends of the conveying channel in the length direction are respectively a feeding end and a discharging end, the first conveying unit 2-2 and the second conveying unit 2-3 can synchronously convey door products, and the conveying speed can be adjusted in a segmented mode.

1) First conveying unit 2-2

The first conveying unit 2-2 comprises a sliding frame 2-24 capable of moving back and forth along a conveying channel, a plurality of adsorption components 2-218 used for grabbing door products are arranged on the sliding frame 2-24, the second conveying unit 2-3 comprises a conveying belt 2-34 used for conveying the door products, the displacement of the sliding frame 2-24 and the displacement of the conveying belt 2-34 in unit time along the length direction of the conveying channel are the same, a plurality of detection plates 2-215 are arranged on a support 2-1 along the length direction of the conveying channel of the door products, mounting holes 2-216 are formed in the detection plates 2-215, photoelectric sensors are arranged in the mounting holes 2-216, and detection blocks 2-217 matched with the photoelectric sensors are arranged on the sliding frame 2-24.

The first conveying unit 2-2 further comprises a fixed platform 2-23 fixedly arranged on the support 2-1, the fixed platform 2-23 is fixedly arranged above the support 2-1 through a vertical plate 2-22, the fixed platform 2-23 is provided with a rotatable transmission shaft 2-26 and a first servo motor 2-25 for driving the transmission shaft 2-26 to rotate, two ends of a sliding frame 2-24 are respectively provided with a first fixed end 2-212 and a second fixed end 2-213, a transmission chain 2-211 is arranged between the first fixed end 2-212 and the second fixed end 2-213, the transmission shaft 2-26 is provided with a first double-row chain wheel 2-28, a rotatable second double-row chain wheel 2-29 and a third double-row chain wheel 2-210 on the fixed platform 2-23, the transmission chain 2-211 is in transmission connection with the second double-row chain wheel 2-29, the first double-row chain wheel 2-28 and the third double-row chain wheel 2-210 in sequence.

Two sliding rails 2-219 are arranged on the sliding frames 2-24, sliding blocks which are in one-to-one correspondence with the sliding rails 2-219 are arranged at the bottoms of the fixed platforms 2-23, the sliding blocks are connected with the sliding rails 2-219 in a sliding mode, and the sliding rails 2-219 play a guiding role.

The first servo motor 2-25 is started, the transmission shaft 2-26 is driven to rotate by the positive and negative rotation of the first servo motor, and then the first double-row chain wheel 2-28 is driven to rotate, and because the two ends of the transmission chain 2-211 are fixed with the sliding frame 2-24, the sliding frame 2-24 can reciprocate in the door product conveying channel.

The portion of the drive chain 2-211 located between the third double row sprocket 2-210 and the first double row sprocket 2-28 and the portion of the drive chain 2-211 located between the first double row sprocket 2-28 and the second double row sprocket 2-29 are parallel to each other.

The second double-row chain wheel 2-29 and the third double-row chain wheel 2-210 are additionally arranged, and the second double-row chain wheel 2-29 and the third double-row chain wheel 2-210 are arranged as above, so that the tensioning degree of the chain can be improved, and the running stability of the sliding frame 2-24 can be further improved.

The support frame 2-1 is provided with a plurality of supporting guide wheels 2-27 for supporting the sliding frames 2-24, and the arrangement of the supporting guide wheels 2-27 can improve the running stability of the sliding frames 2-24.

The adsorption component 2-218 comprises a first connecting rod 2-2181 hinged with the sliding frame 2-24, a second connecting rod 2-2182 jointed with the sliding frame 2-24, and a first lifting cylinder 2-2185 and a third connecting rod 2-2183 hinged with the sliding frame 2-24, wherein two ends of the third connecting rod 2-2183 are respectively hinged with the first connecting rod 2-2181 and the second connecting rod 2-2182, an electromagnet 2-2184 is arranged at the bottom of the third connecting rod 2-2183, and a piston rod of the first lifting cylinder 2-2185 is hinged with a hinged point of the second connecting rod 2-2182 and the third connecting rod 2-2183.

The extension and the shortening of the piston rod of the first lifting cylinder 2-2185 are started to drive the lifting of the electromagnet 2-2184, and the electromagnet 2-2184 descends to grab a door product, so that the door product can be conveyed.

After the door product is conveyed to a processing area of the hot-press forming equipment, the electromagnet 2-2184 loses power and the door product can be conveyed.

The first conveying unit 2-2 further comprises a hook claw assembly 2-214 which is arranged on one side of the sliding frame 2-24 close to the discharging end and used for supporting the end part of a door product, the hook claw assembly 2-214 comprises a rotatable rotating shaft 2-2141 arranged on the sliding frame 2-24 and a transverse mounting plate 2-2143 connected with the rotating shaft 2-2141 through a longitudinal connecting plate 2-2142, a plurality of nail teeth 2-2144 are arranged on one side of the transverse mounting plate 2-2143 close to the feeding end at intervals, a turning cylinder 2-220 is hinged to the sliding frame 2-24, and a piston rod of the turning cylinder 2-220 is hinged to the longitudinal connecting plate 2-2142.

The extension or shortening of a piston rod of the driving overturning cylinder 2-220 can control the hook claw component 2-214 to overturn, the hook claw component 2-214 can hook the end part of a door product in a vertical state when the door product is fed, namely, the hook claw component 2-214 is adopted for assisting in hooking under the adsorption of the electromagnet 2-2184, the stability of the door product in the transportation process is improved, and the situation that the door product is inaccurate in transportation and positioning due to the inertia of the door product is avoided.

And when the door product is discharged, the hook claw assemblies 2-214 are turned to be in a horizontal state.

2) Second conveying unit 2-3

The second conveying unit 2-3 further comprises a driving conveying shaft 2-32 which is arranged on the support 2-1 and can rotate, and a driven conveying shaft 2-33 which is arranged on the support 2-1 and can rotate, wherein the driving conveying shaft 2-32 and the driven conveying shaft 2-33 are in transmission connection through a conveying belt 2-34, and the support 2-1 is further provided with a second servo motor 2-31 which drives the driving conveying shaft 2-32 to rotate.

Starting a second servo motor 2-31, and driving a conveyer belt 2-34 to operate under the transmission action of a first chain 2-39 and a second chain 2-310, so that a film-coated rear door product can be conveyed from a feeding end to a discharging end; the bracket 2-1 is also provided with a plurality of rotatable tensioning conveying rollers 2-311, and the highest point of the tensioning conveying rollers 2-311 is higher than the lowest points of the driving conveying shafts 2-32 and the driven conveying shafts 2-33; the conveying belts 2-34 are always in a tensioning state under the arrangement of the tensioning conveying rollers 2-311, so that the phenomenon that the door product slips after being coated with a film in the conveying process can be avoided, and the accurate conveying and positioning of the door product are facilitated.

The displacement of the sliding frame 2-24 and the conveyer belt 2-34 in unit time along the length direction of the conveying channel is the same; the conveying speeds of the first conveying unit 2-2 and the second conveying unit 2-3 can be controlled to be consistent by adjusting the first servo motor 2-25 and the second servo motor 2-31, namely, the conveying belts 2-34, the sliding frames 2-24 and the door products are always kept in a relatively static state in the conveying process of the door products entering the hot press body 3, the stability of the door products in the conveying process is ensured by the upper-lower double-layer conveying, and the positioning precision of the discharged materials can also be ensured.

An edge guide assembly 2-5 parallel to the conveying direction of the door product is arranged on one side of the conveying channel, the edge guide assembly 2-5 comprises a shell arranged on the support 2-1, one side of the shell is opened, and a plurality of rotatable side guide rollers are arranged in the shell; the edge guide assembly 2-5 is matched with the edge-abutting mechanism of the front-end process, and aims to accurately position the lateral direction of the door product.

When the conveyor belts 2-34 are used to convey door products, there are problems as follows:

the door product is closely attached to the conveyor belts 2-34 in parallel and can be changed from a relative static state to a relative motion state, the attaching area of the door product and the conveyor belts 2-34 is the whole door surface, after the relative motion occurs, the film coating surface can generate great friction with the conveyor belts 2-34, and then the situation that the surface of the film coating rear door product is scratched can occur, and the product quality is affected.

The second conveying unit 2-3 further comprises a lifting guide structure 2-8 arranged on one side of the discharging end and used for lifting the end part of the film-coated rear door product, a gap is arranged between the lifting guide structure 2-8 and the discharging end, an extension plate 2-9 is arranged on the support 2-1, a driven conveying shaft 2-33 is arranged on the extension plate 2-9, an upper support plate 2-7 is arranged on the extension plate 2-9, a lifting guide structure 2-8 is arranged on the upper support plate 2-7, the lifting guide structure 2-8 comprises a second lifting cylinder 2-81, a first special-shaped support plate 2-82, an outer connecting rod 2-83, an inner connecting rod 2-84, a second special-shaped support plate 2-85, a movable frame 2-86 and a guide roller 2-87, a first special-shaped support plate 2-82 is arranged at the bottom of the upper support plate 2-7, the inner side of the first special-shaped support plate 2-82 is provided with a second special-shaped support plate 2-85, a second lifting cylinder 2-81 is hinged with the first special-shaped support plate 2-82, the tail end of a piston rod of the second lifting cylinder 2-81 is hinged with an outer connecting rod 2-83 and an inner connecting rod 2-84, the outer connecting rod 2-83 is hinged with the second special-shaped support plate 2-85, a movable frame 2-86 is hinged with the second special-shaped support plate 2-85, the inner connecting rod 2-84 is hinged with a movable frame 2-86, the movable frame 2-86 is connected with the second special-shaped support plate 2-85 in a sliding mode, and a rotatable guide roller 2-87 is arranged on the movable frame 2-86.

And starting the second lifting cylinder 2-81, extending a piston rod of the second lifting cylinder to drive the outer connecting rod 2-83 and the inner connecting rod 2-84 to rotate, further slightly lifting the movable frame 2-86, slightly lifting the highest point of the guide roller 2-87 to be slightly higher than the top surface of the conveyer belt 2-34, conveying the door product to the subsequent hot press body 3 along the guide roller 2-87 after the door product to be coated is conveyed to the discharge end, further slightly tilting the door product under the condition that the door product and the conveyer belt 2-34 move relatively during discharging, not completely fitting the conveyer belt 2-34, only tightly attaching the rear edge of the door product to the conveyer belt 2-34, reducing friction between the coating surface and the conveyer belt 2-34, avoiding surface scratch of the door product after coating, and ensuring the discharging quality of the door product.

3) The feeding and discharging processes of the first conveying unit 2-2 and the second conveying unit 2-3 are as follows:

after the feeding, the side leaning and the lifting of the feeding device 1, a raw material outlet of the feeding device 1 is flush with a feeding end of the pushing device 2;

the feeding device 1 conveys the door product to the conveyor belts 2-34, and the conveyor belts 2-34 convey the door product forwards until the hook claw assemblies 2-214 hook the end parts of the door product (at this time, the front end of the door product is hooked by the hook claw assemblies 2-214);

the adsorption components 2-218 adsorb the door products to provide supporting force for the door products from the upper part;

when the door product is conveyed to the material feeding channel of the hot press body 3 from the pushing device 2, the first conveying unit 2-2 and the second conveying unit 2-3 work synchronously, and when the front end of the door product enters the inlet side of the material feeding channel, the guide rollers 2-87 are lifted;

it should be noted that only the sliding frame 2-24 will carry the door product into the material feed channel, but in the process, the rear end of the door product is supported and guided by the guide rollers 2-87 (the claw assembly 2-214 prevents the door product from being planted forward, and the guide rollers 2-87 prevents the door product from being planted backward);

when the door reaches a preset position, the hook claw assemblies 2-214 are turned over, and the door product falls onto the hot pressing plate to complete the feeding of the product.

And formally, because the height of the material feeding channel is fixed and the feeding position is the same every time, the hook claw assemblies 2 to 214 can push processed door products existing in the material feeding channel to the discharging device 4 in the hooking state feeding process, so that the hot press body 3 can realize simultaneous feeding and discharging.

4) The speed control of the first conveying unit 2-2 and the second conveying unit 2-3 in the process that the pushing device 2 pushes the door product to the material feeding channel of the hot press body is as follows:

the door detection device is characterized in that a plurality of detection plates 2-215 are arranged along the length direction of the support 2-1, mounting holes 2-216 are formed in the detection plates 2-215, photoelectric sensors are arranged in the mounting holes 2-216, detection blocks 2-217 matched with the photoelectric sensors are arranged on the sliding frames 2-24, and when the detection blocks 2-217 correspond to the photoelectric sensors in the transportation process of the sliding frames 2-24, the photoelectric sensors are triggered to detect the transportation position of a door product.

The first servo motors 2-25 and the second servo motors 2-31 are synchronously controlled by a PLC control system of the production line to achieve the relative static state.

TABLE 1 door product Standard runtime Table

frequency/Hz of servo motor	10	25	40	50	40	25	10
								Distance/mm	120	240	360	1310	360	240	120
Time/s	1.8	2.2	1.4	2	1.4	2.2	1.8

The photoelectric sensor is arranged by referring to the distance parameters in the table 1, and the table 1 shows that the speed is gradually increased, stabilized and gradually reduced in the transportation process of the door product, so that the situation that the door product is inaccurate in positioning due to the inertia of the door product in the transportation process can be avoided under the condition of keeping higher average speed, the subsequent hot-press forming equipment can accurately process the door product, and the processing quality of the product is ensured.

Third, hot press body 3

The hot press body 3 comprises an outer frame body 3-1, wherein a balance weight platform 3-7 and a supporting base 3-9 which can be synchronously lifted are arranged on the inner side of the outer frame body 3-1 from top to bottom, a balance weight block is arranged at the top of the balance weight platform 3-7, a first hot pressing plate 3-20 is arranged at the bottom of the balance weight platform 3-7, a plurality of second hot pressing plates 3-21 are arranged at the top of the supporting base 3-9, contour columns 3-18 are arranged at the tops of the second hot pressing plates 3-21, a synchronous lifting unit for driving the balance weight platform 3-7 and the supporting base 3-9 to synchronously lift is arranged at the top of the outer frame body 3-1, and two separating supporting pieces 3-19 which can separate adjacent hot pressing plates to form a single material feeding channel with fixed height are arranged on the outer frame body 3-1.

The first hot press plate 3-20 and the second hot press plate 3-21 are provided with hot water pipes inside, and the hot press plates provide a heat source through hot water circulating inside, which is not described in detail in the prior art.

1) The integral drive of the hot press body:

the synchronous lifting unit comprises a fifth servo motor 3-2 and a plurality of driving part transmission sets, the fifth servo motor 3-2 is arranged at the top of an outer frame body 3-1, the driving part transmission sets comprise a driving part rotating shaft 3-4 which is arranged on the outer frame body 3-1 in a rotatable mode, driving part chain wheels 3-6 are arranged at two ends of the driving part rotating shaft 3-4, a driven transmission roller set 3-5 is arranged on the driving part rotating shaft 3-4, a main transmission roller set 3-3 is arranged on an output shaft of the fifth servo motor 3-2, and the main transmission roller set 3-3 is in transmission connection with the driven transmission roller set 3-5 (can be in transmission connection through a chain or a belt).

In the longitudinal direction, the two driving part transmission groups are symmetrically arranged on one opposite side of the hot pressing plate, so that the lifting stability of the hot pressing plate can be improved.

Lifting part chain wheels 3-15 which are in one-to-one correspondence with the driving part chain wheels 3-6 are arranged on the supporting bases 3-9, and the driving part chain wheels 3-6 are in transmission connection with the lifting part chain wheels 3-15; the driving part chain wheels 3-6 are in transmission connection with the lifting part chain wheels 3-15 through lifting chains, transmission connecting pieces 3-14 are arranged on the supporting bases 3-9, first adjusting pieces 3-10 are arranged at one ends of the lifting chains, the first adjusting pieces 3-10 are connected with the transmission connecting pieces 3-14 through first adjusting bolts 3-11, second adjusting pieces 3-12 are arranged at the other ends of the lifting chains, and the second adjusting pieces 3-12 are connected with the transmission connecting pieces 3-14 through second adjusting bolts 3-13.

The tightness of the lifting chain in the assembling process is adjustable under the arrangement of the first adjusting pieces 3-10, the first adjusting bolts 3-11, the second adjusting pieces 3-12 and the second adjusting bolts 3-13, and the lifting chain is guaranteed to be always kept in a tensioned state during working, so that the working stability of the multilayer hot press is guaranteed, and the product quality is guaranteed.

2) Deviation prevention and guiding of the hot press body 3:

the counterweight platform 3-7 is provided with two counterweight part transmission groups which are in one-to-one correspondence with the driving part transmission groups, each counterweight transmission group comprises a rotatable counterweight part rotating shaft 3-16 arranged on the counterweight platform 3-7, first gears are arranged at two ends of each counterweight part rotating shaft 3-16, a plurality of racks 3-8 which are in one-to-one correspondence with the first gears are arranged on the inner side of the outer frame body 3-1, the first gears are meshed with the racks 3-8, a plurality of second gears which are in one-to-one correspondence with the racks 3-8 are arranged on the supporting bases 3-9, and the second gears are meshed with the racks 3-8.

Except for the transmission of a lifting chain, the support base 3-9 of the counterweight platform 3-7 adopts the auxiliary guide of a gear-rack, so that the condition that the product quality is influenced by the inclination of the counterweight platform 3-7 and the support base 3-9 in the lifting process is avoided.

The counterweight platform 3-7, the first hot pressing plate 3-20 and the second hot pressing plate 3-21 are respectively provided with a plurality of rotatable special-shaped guide wheels 3-17 which correspond to the racks 3-8 one by one, the outer edges of the special-shaped guide wheels 3-17 are provided with first guide inclined planes, the racks 3-8 are provided with second guide inclined planes matched with the first guide inclined planes, and the second guide inclined planes are in rolling connection with the first guide inclined planes.

The stability of the hot pressing plate can be further improved under the arrangement of the special-shaped guide wheels 3-17, the first guide inclined plane and the second guide inclined plane, and the product quality is further ensured.

3) Principle of forming a fixed material feed channel:

the separating support part 3-19 comprises a positioning column 3-191 arranged on the outer frame body 3-1, a shell 3-192 is arranged on the positioning column 3-191, a separating plate capable of sliding along a special-shaped groove in the shell 3-192 is arranged in the shell 3-192, and a supporting cylinder 3-194 for driving the separating plate to telescopically slide is arranged on the positioning column 3-191; the shell 3-192 is provided with a limit switch 3-193.

During feeding, the support cylinder 3-194 is driven to drive the separating plates to extend out, the two separating plates provide support for the hot pressing plate on the upper layer, the fifth servo motor 3-2 is reversed, and the hot pressing plate on the lowest layer is separated from the hot pressing plate on the uppermost layer to form a material feeding channel;

when the feeding is finished, the fifth servo motor 3-2 is rotated forward, the hot pressing plate on the lower layer is driven by the synchronous lifting unit, namely the supporting base 3-9 is lifted, and gradually approaches the hot pressing plate on the upper layer, when the equal-height column 3-18 of the uppermost hot pressing plate on the lower layer is abutted to the hot pressing plate on the lowermost layer, the separating plate retracts into the shell 3-192, the hot pressing plate on the upper layer loses the support of the separating plate, and the support is provided by the supporting base 3-9;

all hot pressboards can promote in step again this moment, when the hot pressboard promotes the one deck once more, repeats above-mentioned action, can form new material feedstock channel, and such setting up makes material feedstock channel's position remain fixed throughout, has realized hot press fixed position business turn over material mode, and then provides the basis for wireless circulation business turn over material.

The height of the material feeding channel can be controlled by controlling the fifth servo motor 3-2 through the PLC, and meanwhile, the limit switches 3-193 are triggered through different hot pressing plates, so that the automatic control of the separating plate can be realized.

A plurality of auxiliary supporting components 3-22 are arranged on the inner side of the outer frame body 3-1, each auxiliary supporting component 3-22 comprises a telescopic cylinder 3-221 and a sliding sleeve 3-223 which are arranged on the outer frame body 3-1, a sliding shaft 3-224 is connected in the sliding sleeve 3-223 in a sliding mode, a rotatable auxiliary supporting wheel 3-225 is arranged on one side, facing the material feeding channel, of the sliding shaft 3-224, and piston rods of the sliding shaft 3-224 and the telescopic cylinder 3-221 are connected with outer connecting pieces 3-222;

the telescopic cylinder 3-221 is started to drive the auxiliary supporting wheel 3-225 to extend into or out of the material feeding channel, so that auxiliary support and guide can be provided for the sliding frame 2-24 extending into the material feeding channel, and the condition that the front end of the sliding frame 2-24 falls down is avoided; namely, when the sliding frame 2-24 extends into the material feeding channel, the auxiliary supporting wheel 3-225 extends into the material feeding channel at the same time, when the sliding frame 2-24 is restored and recovered to the outer side of the material feeding channel, the auxiliary supporting wheel 3-225 extends out of the material feeding channel, and only when the sliding frame 2-24 and the auxiliary supporting wheel 3-225 are not located at the inner side of the material feeding channel, the hot press body 3 can be subjected to hot press processing.

Fourthly, the circular processing flow of the hot pressing production line is briefly described:

taking a 12-layer hot press as an example:

the 12-layer hot press has 12 processing spaces, which are designated a1, a2, A3, … … a 12.

The single lifting height is X, namely the lifting height is X, and the processing space corresponding to the material feeding channel is switched from A1 to A2;

and in the process of switching the A1 to A2, the upper and lower hot pressing plates of the A1 processing space are already attached (the attachment refers to the attachment of the contour columns 3-18 of the lower hot pressing plate and the upper hot pressing plate), and the door product in the A1 is already hot pressed;

a first cycle:

when the door products are placed in all the processing spaces of the 12-layer hot press after the door products are lifted by 11X, the door products in the A1 space are subjected to hot press forming to realize T11 required for lifting by 11X (at the moment, the time for hot press forming of the door products in the A2 space is T10 required for lifting by 10X);

at the moment, the A1 processing space is descended by 11X to correspond to the material feeding channel again;

and a second circulation:

the pushing device 2 puts a new product in the space A1 and pushes out the hot-pressed product processed by 11X in the space A1;

lifting X, switching A1 to A2, and when A2 is switched, hot-press forming is just carried out on the door product in the A2 space to realize T11 required for lifting 10X +1X height;

the pushing device 2 puts a new product in the space A2 and pushes out the hot-pressed product processed by 11X in the space A2;

……

the automatic circulation hot press molding processing of the door product surface coating can be realized by the circulation;

the above-mentioned T11 is only a brief description of the principle, and in the actual production, in this cycle, the hot press forming time of a single door product is 6min, and a series of actions of forming, feeding and discharging and feeding and discharging are uniformly controlled by a PLC system, and PLC control is well known to those skilled in the art and is not described herein.

Fifth, the blanking device 4

The specific structure of the blanking device 4 is basically the same as that of the feeding device 1, and the edge leaning mechanism and the auxiliary lifting mechanisms 1 to 18 are not included, so that the detailed description is omitted.

Sixth, buffer storage platform 5

The buffer platform 5 is a roller conveyor, which is not described herein for the prior art.

Claims (10)

1. A hot pressing production line for door processing is suitable for hot pressing forming processing of a film-coated rear door product, and comprises a feeding device (1), a pushing device (2), a hot pressing machine body (3), a discharging device (4) and a buffer platform (5) which are sequentially arranged;

the feeding device is characterized by comprising a mounting frame (1-1), wherein a lifting bearing frame (1-2) is arranged on the mounting frame (1-1), a raw material inlet and a raw material outlet are respectively arranged at two ends of the bearing frame (1-2), a conveying unit for conveying a film-coated door product from the raw material inlet to the raw material outlet is arranged on the bearing frame (1-2), an edge leaning mechanism for positioning the film-coated door product along an edge is arranged on the bearing frame (1-2), the conveying unit and the edge leaning mechanism do not work simultaneously, and an auxiliary lifting mechanism (1-18) for lifting the door product and separating from the conveying unit after lifting the door product during edge leaning positioning of the film-coated door product is arranged on the bearing frame (1-2);

the pushing device (2) comprises a support (2-1), a second conveying unit (2-3) is arranged on the inner side of the support (2-1), a first conveying unit (2-2) is arranged above the support (2-1), a door product conveying channel is formed between the first conveying unit (2-2) and the second conveying unit (2-3), the two ends of the conveying channel in the length direction are respectively a feeding end and a discharging end, the first conveying unit (2-2) and the second conveying unit (2-3) can synchronously convey door products, and the conveying speed can be adjusted in a segmented mode;

the hot press body (3) comprises an outer frame body (3-1), a balance weight platform (3-7) and a supporting base (3-9) which can be synchronously lifted are arranged on the inner side of the outer frame body (3-1) from top to bottom, a balance weight block is arranged at the top of the balance weight platform (3-7), a first hot pressing plate (3-20) is arranged at the bottom of the balance weight platform (3-7), a plurality of second hot pressing plates (3-21) are arranged at the top of the supporting base (3-9), an equal-height column (3-18) is arranged at the top of each second hot pressing plate (3-21), a synchronous lifting unit for driving the balance weight platform (3-7) and the supporting base (3-9) to synchronously lift is arranged at the top of the outer frame body (3-1), two separating supporting pieces (3-19) capable of separating adjacent hot pressing plates to form a single material feeding channel with fixed height are arranged on the outer frame body (3-1), one side of the material feeding channel, which is close to the pushing device (2), is an inlet side, and one side of the material feeding channel, which is close to the blanking device (4), is an outlet side;

the pushing device (2) is used for pushing the door product to be processed to the blanking device (4) while sending the door product to be processed to the material feeding channel;

and the blanking device (4) is used for conveying the door product to the buffer storage platform (5) from the outlet side of the material feeding channel.

2. The hot pressing production line for door processing according to claim 1, wherein the conveying unit comprises a rotatable driving roller (1-3) arranged on the bearing frame (1-2), a plurality of driven rollers (1-4) arranged on the bearing frame (1-2) and capable of rotating synchronously with the driving roller (1-3), and a third servo motor (1-5) for driving the driving roller (1-3) to rotate;

a second lifting plate (1-7) is hinged in the mounting frame (1-1), a first lifting plate (1-6) is hinged to the second lifting plate (1-7) through a middle rotating shaft (1-8), a second optical axis (1-14) is arranged on the bearing frame (1-2), a second optical axis sliding block (1-15) is hinged to one end of the second lifting plate (1-7), and the second optical axis sliding block (1-15) is in sliding connection with the second optical axis (1-14);

the inner side of the mounting frame (1-1) is provided with a rotatable screw rod (1-10) and a screw rod sliding block (1-11) capable of moving back and forth along the screw rod (1-10), the inner side of the mounting frame (1-1) is provided with a fourth servo motor (1-9) capable of driving the screw rod (1-10) to rotate, one end of the first lifting plate (1-6) is hinged with a first optical axis sliding block (1-13) capable of following the screw rod sliding block (1-11), the mounting frame (1-1) is provided with a first optical axis (1-12), the first optical axis sliding block (1-13) is connected with the first optical axis (1-12) in a sliding manner, and the other end of the first lifting plate (1-6) is hinged with the bearing frame (1-2);

the side-leaning mechanism comprises rodless cylinders (1-16) arranged on the bearing frames (1-2), and rotatable side rolling sleeves (1-17) are arranged on sliding tables of the rodless cylinders (1-16);

the auxiliary lifting mechanism (1-18) comprises a lower box body (1-181) arranged on the bearing frame (1-2) and an upper box body (1-184) matched with the lower box body (1-181), a lifting cylinder (1-182) is hinged on the lower box body (1-181), the lifting cylinder (1-182) is hinged with the upper box body (1-184), a side plate (1-183) is arranged between the upper box body (1-184) and the lower box body (1-181), two ends of the side plate (1-183) are respectively hinged with the upper box body (1-184) and the lower box body (1-181), the top surface of the upper box body (1-184) is provided with a plurality of universal balls (1-185), and the universal balls (1-185) are arranged along the moving direction of the sliding table of the rodless cylinder (1-16).

3. The hot pressing production line for door processing according to claim 1, wherein the first conveying unit (2-2) comprises a sliding frame (2-24) capable of reciprocating along the conveying passage, a plurality of adsorption assemblies (2-218) for grabbing door products are arranged on the sliding frame (2-24), the second conveying unit (2-3) comprises a conveying belt (2-34) for conveying the door products, the displacement of the sliding frame (2-24) and the displacement of the conveying belt (2-34) along the length direction of the conveying passage per unit time are the same, a plurality of detection plates (2-215) are arranged on the bracket (2-1) along the length direction of the conveying passage of the door products, mounting holes (2-216) are arranged on the detection plates (2-215), photoelectric sensors are arranged in the mounting holes (2-216), a detection block (2-217) matched with the photoelectric sensor is arranged on the sliding frame (2-24);

the first conveying unit (2-2) further comprises a hook claw assembly (2-214) which is arranged on one side, close to the discharging end, of the sliding frame (2-24) and used for supporting the end portion of a door product, the hook claw assembly (2-214) comprises a rotating shaft (2-2141) which is arranged on the sliding frame (2-24) in a rotatable mode and a transverse mounting plate (2-2143) which is connected with the rotating shaft (2-2141) through a longitudinal connecting plate (2-2142), a plurality of nail teeth (2-2144) are arranged on one side, close to the feeding end, of the transverse mounting plate (2-2143) at intervals, a turnover cylinder (2-220) is hinged to the sliding frame (2-24), and a piston rod of the turnover cylinder (2-220) is hinged to the longitudinal connecting plate (2-2142).

4. The hot pressing production line for door processing according to claim 2, wherein an edge guide assembly (2-5) matched with the edge leaning mechanism is arranged on one side of the conveying channel, the edge guide assembly (2-5) comprises a shell arranged on the bracket (2-1), and the shell is open on one side and is internally provided with a plurality of rotatable side guide rollers.

5. The hot-pressing production line for door processing according to claim 3, wherein the second conveying unit (2-3) further comprises a lifting guide structure (2-8) arranged on one side of the discharge end and used for lifting the end of the door product after film coating, a gap is formed between the lifting guide structure (2-8) and the discharge end, an extension plate (2-9) is arranged on the support (2-1), a driven conveying shaft (2-33) is arranged on the extension plate (2-9), an upper support plate (2-7) is arranged on the extension plate (2-9), a lifting guide structure (2-8) is arranged on the upper support plate (2-7), and the lifting guide structure (2-8) comprises a second lifting cylinder (2-81), a first special-shaped support plate (2-82) and a second special-shaped support plate (2-82), The device comprises outer connecting rods (2-83), inner connecting rods (2-84), second special-shaped support plates (2-85), movable frames (2-86) and guide rollers (2-87), wherein the bottom of each upper support plate (2-7) is provided with a first special-shaped support plate (2-82), the inner sides of the first special-shaped support plates (2-82) are provided with second special-shaped support plates (2-85), a second lifting cylinder (2-81) is hinged with the first special-shaped support plates (2-82), the tail ends of piston rods of the second lifting cylinders (2-81) are hinged with the outer connecting rods (2-83) and the inner connecting rods (2-84), the outer connecting rods (2-83) are hinged with the second special-shaped support plates (2-85), the movable frames (2-86) are hinged with the second special-shaped support plates (2-85), and the inner connecting rods (2-84) are hinged with the movable frames (2-86), the movable frame (2-86) is connected with the second special-shaped support plate (2-85) in a sliding mode, and the rotatable guide roller (2-87) is arranged on the movable frame (2-86).

6. The hot pressing production line for door processing according to claim 1, wherein the synchronous lifting unit comprises a fifth servo motor (3-2) and a plurality of driving part transmission sets, the fifth servo motor (3-2) is arranged at the top of the outer frame body (3-1), the driving part transmission sets comprise driving part rotating shafts (3-4) which are arranged on the outer frame body (3-1) and can rotate, driving part chain wheels (3-6) are arranged at two ends of each driving part rotating shaft (3-4), a driven transmission roller set (3-5) is arranged on each driving part rotating shaft (3-4), a main transmission roller set (3-3) is arranged on an output shaft of the fifth servo motor (3-2), and the main transmission roller set (3-3) is in transmission connection with the driven transmission roller set (3-5);

lifting part chain wheels (3-15) which are in one-to-one correspondence with the driving part chain wheels (3-6) are arranged on the supporting bases (3-9), and the driving part chain wheels (3-6) are in transmission connection with the lifting part chain wheels (3-15).

7. The hot pressing production line for door processing according to claim 6, wherein the drive part chain wheels (3-6) and the lifting part chain wheels (3-15) are in transmission connection through a lifting chain, the support base (3-9) is provided with a transmission connecting piece (3-14), one end of the lifting chain is provided with a first adjusting piece (3-10), the first adjusting piece (3-10) is connected with the transmission connecting piece (3-14) through a first adjusting bolt (3-11), the other end of the lifting chain is provided with a second adjusting piece (3-12), and the second adjusting piece (3-12) is connected with the transmission connecting piece (3-14) through a second adjusting bolt (3-13).

8. The hot pressing production line for door processing according to claim 1, wherein a plurality of counterweight transmission sets are arranged on the counterweight platform (3-7) and correspond to the driving portion transmission sets one by one, each counterweight transmission set comprises a counterweight rotating shaft (3-16) which is arranged on the counterweight platform (3-7) and can rotate, first gears are arranged at two ends of each counterweight rotating shaft (3-16), a plurality of racks (3-8) which correspond to the first gears one by one are arranged on the inner side of the outer frame body (3-1), the first gears are meshed with the racks (3-8), a plurality of second gears which correspond to the racks (3-8) one by one are arranged on the supporting base (3-9), and the second gears are meshed with the racks (3-8).

9. The hot pressing production line for door processing as claimed in claim 8, wherein the counterweight platform (3-7), the first hot pressing plate (3-20) and the second hot pressing plate (3-21) are respectively provided with a plurality of special-shaped guide wheels (3-17) which are rotatable in one-to-one correspondence with the racks (3-8), the outer edges of the special-shaped guide wheels (3-17) are provided with first guide inclined planes, the racks (3-8) are provided with second guide inclined planes matched with the first guide inclined planes, and the second guide inclined planes are in rolling connection with the first guide inclined planes.

10. The hot pressing production line for door processing according to claim 1, wherein the separating support (3-19) comprises a positioning column (3-191) arranged on the outer frame body (3-1), a housing (3-192) is arranged on the positioning column (3-191), a separating plate capable of sliding along a special-shaped groove in the housing (3-192) is arranged in the housing (3-192), and a supporting cylinder (3-194) for driving the separating plate to slide telescopically is arranged on the positioning column (3-191).

Images