Automatic stamping and blanking equipment for refrigerator door shell

Abstract

The invention provides automatic stamping and blanking equipment for a refrigerator door shell, which solves the problems that residual stress is covered on the surface of the existing refrigerator door shell after stamping, and the integral rigidity of a metal plate is not favorably improved, and adopts the main scheme that the automatic stamping and blanking equipment comprises an outer box, a feeding track arranged at the inner bottom of the outer box, a molding table, a heating table and a stamping table connected to the feeding track in a sliding manner, a stamping assembly and a heat treatment assembly are further sequentially arranged on the inner top of the box body in the feeding direction of the feeding rail, an isolation assembly is further fixed to the position, corresponding to the lower portion of the heat treatment assembly, of the inner bottom of the box body, and vertical sliding tables are further erected on the two sides of the feeding rail; the stamping assembly is used for driving the molding table to press up and down on the sliding table in a servo mode, the heat treatment assembly is used for driving the heating table to ascend and descend on the sliding table in a servo mode, the isolation assembly is used for driving a workpiece on the stamping table to correspondingly abut against the heating table in a servo mode, and a leakage groove corresponding to the molding table is formed in the center of the stamping table.

Description

Technical Field

[0001] The invention relates to the technical field of refrigerator door processing, and in particular to an automatic stamping and blanking device for a refrigerator door shell. Background Art

[0002] Door shell forming technology is an important part of refrigerator manufacturing and also a key technology. If the door shell is used improperly or the mold structure is unreasonable, the life of the refrigerator will be reduced, and even cracking and indentation may occur. Therefore, it is necessary to study new refrigerator door shell forming technology.

[0003] After cold processing, the existing refrigerator door shell sheet metal may have some welding stress and residual stress, which may affect the service life and quality of the sheet metal. Heat treatment can eliminate these stresses and make the sheet metal more stable. It can be seen that when the sheet metal has high residual stress, deformation or cracks caused by plastic shaping, heat treatment is required to eliminate stress and strengthen some tissues. How to ensure the comprehensiveness of the heat treatment process and the degree of heat coverage are corresponding problems. For this reason, we propose an automatic stamping and blanking equipment for refrigerator door shells to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes an automatic stamping and blanking equipment for refrigerator door shells which has better heat coverage effect and is conducive to eliminating residual stress on the surface after sheet metal stamping.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic stamping and blanking equipment for refrigerator door shells, comprising: an outer box, a feed track placed on the inner bottom of the outer box, a molding table, a heating table and a stamping table slidably connected to the feed track, the top of the box body is also arranged in sequence with a stamping component and a heat treatment component in the feeding direction of the feed track, the bottom of the box body is also fixed with an isolation component below the corresponding heat treatment component, and vertical sliding tables are also set on both sides of the feed track, the stamping component is used to servo drive the molding table to press up and down on the sliding table, the heat treatment component is used to servo drive the heating table to rise and fall on the sliding table, the isolation component is used to servo drive the workpiece on the stamping table to contact the heating table accordingly, and a leakage groove corresponding to the molding table is opened in the center of the stamping table.

[0006] Furthermore, the sliding platform includes a top plate and sliding rods vertically fixed at four corners of the top plate, the top plate and the punching platform are arranged far apart, and the bottom end of each sliding rod is welded and fixed to the inner bottom of the outer box.

[0007] Furthermore, the stamping assembly includes a stamping cylinder, a slide plate and a bearing seat. The stamping cylinder is fixed on the top of the top plate and the output end is arranged through the top plate. The two ends of the slide plate are slidably connected to the slide rod through the bearing seat, and the output end of the stamping cylinder is fixed to the center of the top surface of the slide plate.

[0008] Furthermore, the slide plate is provided with an adjustment groove perpendicular to the track direction of the feed track, and the top of the molding table and the slide plate are fixed with bolts in the adjustment groove.

[0009] Furthermore, the heat treatment component includes an electric heating module, a servo motor, a belt reel, a limit table, a fixed table, a lifting rod and a limit wheel. A heating wire is embedded in the top of the heating table. The electric heating module is fixed on the sliding table and electrically connected to the heating wire. The limit table and the fixed table are both fixed on the sliding table. The servo motor is fixed to the fixed table, and the output end is coaxially fixed with the belt reel. The lifting rod is vertically slidably connected to the limit table, and belt clamps are fixed on the upper and lower sides. The limit wheel includes two and is rotatably connected to the fixed table. The belt on the belt reel is limited and passes through between the two limit wheels, and then is fixed in the belt clamps at the upper and lower ends of the lifting rod in sequence.

[0010] Furthermore, the electric heating module model is MDS300-1600, and a power adjustment knob is integrated thereon.

[0011] Furthermore, the isolation assembly includes a base, a lifting cylinder, a guide rod, a transition table and a servo turntable. The base is fixed to the inner bottom of the outer box, the lifting cylinder is built into and fixed in the base, and the output end passes through the base to be fixed to the back center of the transition table. The guide rods include four and are slidably connected to the four corners of the base, the four corners of the back of the transition table are connected and fixed to the guide rods, the servo turntable is fixed to the center of the top surface of the transition table, and vacuum suction cups are also fixed to the four corners of the top surface.

[0012] Furthermore, the servo turntable is built into the drain slot.

[0013] Furthermore, a waste trough corresponding to the mold block is provided on the inner bottom of the outer box, and the mold blocks include various models and sizes.

[0014] Furthermore, the feeding track includes a material rail, an external motor, a screw and a rotating table. Both ends of the screw are slidably connected to the inner bottom of the outer box through the rotating table. The external motor is fixed to the outer box, and its output end is coaxially fixed to the screw. Both ends of the stamping table are slidably connected to the material rail through a slider, and the corresponding screw is matched with the screw thread through a connecting block.

[0015] Compared with the prior art, the beneficial effects of the present invention include: the stamping assembly drives the molding table to achieve fixed-point stamping of the workpiece on the stamping table, and then the heat treatment assembly cooperates with the isolation assembly to achieve heating of the surface of the sheet metal workpiece, thereby ensuring a better stamping effect of the workpiece and indirectly improving the rigidity and stability of the steel material. During the heat treatment process, the isolation assembly that is servo-lifted and rotated by the bottom cooperates with the electric heating table to perform surface-to-surface resistance, thereby ensuring a better heat transfer effect. The way the workpiece itself is isolated from the stamping table also ensures that the heat loss on the bottom is minimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0017] Figure 1 Schematically shows an isometric structural diagram proposed according to one embodiment of the present invention;

[0018] Figure 2 Schematically shows a front view according to an embodiment of the present invention;

[0019] Figure 3 Schematically shows a method according to an embodiment of the present invention. Figure 2 AA section view;

[0020] Figure 4 Schematically shows a method according to an embodiment of the present invention. Figure 2 A partial enlarged view.

[0021] Numbers in the figure: 1, outer box; 101, waste trough; 2, feed track; 201, material rail; 202, external motor; 203, screw rod; 204, rotating table; 205, connecting block; 3, heating table; 4, stamping table; 5, stamping assembly; 501, stamping cylinder; 502, slide plate; 503, bearing seat; 504, adjustment slot; 6, heat treatment assembly; 601, electric heating module; 602, servo motor; 603, belt reel; 604, limit table; 605, fixed table; 606, lifting rod; 607, limit wheel; 608, belt clamp; 609, power adjustment knob; 7, isolation assembly; 701, base; 702, lifting cylinder; 703, guide rod; 704, transition table; 705, servo turntable; 706, vacuum suction cup; 8, sliding table; 801, top plate; 802, slide rod; 9, drain groove. DETAILED DESCRIPTION

[0022] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0023] According to one embodiment of the present invention, Figure 1-Figure 4 Shown.

[0024] like Figure 1 As shown, for the overall structure, in this embodiment, an automatic stamping and blanking equipment for refrigerator door shells includes: an outer box 1, a feed track 2 placed on the inner bottom of the outer box 1, a molding table, a heating table 3 and a stamping table 4 slidably connected to the feed track 2, and a stamping component 5 and a heat treatment component 6 are arranged in sequence on the top of the box body in the feeding direction of the feed track 2, and an isolation component 7 is fixed to the bottom of the box body below the corresponding heat treatment component 6, and vertical sliding tables 8 are also set on both sides of the feed track 2, the stamping component 5 is used to servo drive the molding table to press up and down on the sliding table 8, the heat treatment component 6 is used to servo drive the heating table 3 to rise and fall on the sliding table 8, and the isolation component 7 is used to servo drive the workpiece on the stamping table 4 to contact with the heating table 3 accordingly, and a leakage groove 9 corresponding to the molding table is opened in the center of the stamping table 4.

[0025] It can be seen that in the present invention, in addition to the cold stamping of the refrigerator door sheet metal workpiece, the elimination of residual stress in the workpiece after cold processing is also considered, that is, the stamping component 5 is first used to drive the molding table to realize the fixed-point stamping of the workpiece on the stamping table 4, and then the heat treatment component 6 is used in conjunction with the isolation component 7 to realize the heating of the surface of the sheet metal workpiece, thereby ensuring a better stamping effect of the workpiece and indirectly improving the stiffness and stability of the steel material.

[0026] The following is a detailed description of each implementation structure:

[0027] First, with regard to the sliding table 8 that plays the main connecting and supporting role in the present invention, the sliding table 8 includes a top plate 801 and sliding rods 802 vertically fixed at the four corners of the top plate 801. The top plate 801 is arranged away from the stamping table 4. The bottom end of each sliding rod 802 is welded and fixed to the inner bottom of the outer box 1. The top plate 801 is used to support the stamping component 5 and the heat treatment component 6. The four sliding rods 802 are used in pairs as sliding transmission media to guide the servo operation of the stamping component 5 and the heat treatment component 6.

[0028] like Figure 2 and Figure 3As shown, for the stamping assembly 5, in this embodiment, the stamping assembly 5 includes a stamping cylinder 501, a slide plate 502 and a bearing seat 503. The stamping cylinder 501 is fixed on the top of the top plate 801 and the output end is set through the top plate 801. The two ends of the slide plate 502 are slidably connected with the slide bar 802 through the bearing seat 503, and the output end of the stamping cylinder 501 is fixed to the center of the top surface of the slide plate 502. Furthermore, the slide plate 502 is also provided with an adjustment groove 504 perpendicular to the track direction of the feed track 2, and the top of the mold table and the slide plate 502 are bolted in the adjustment groove 504. The inner bottom of the outer box 1 is provided with a waste groove 101 corresponding to the mold block, and the model size includes multiple types.

[0029] The servo control process is that the stamping cylinder 501 pushes downward, driving the slide plate 502 to slide on the bearings of the two slide rods 802, and then stamping the sheet metal workpiece on the stamping plate. Gaps will be reserved at the sheet metal to be stamped to ensure that it can be stamped off in one time, and the waste will be sent out from the waste trough 101 at the bottom of the outer box 1 for recycling. At the same time, the mold table itself can be adjusted through the adjustment groove 504 on the slide plate 502. The adjustment groove 504 includes multiple columns to meet the matching requirements of mold tables of different sizes. The specific mold table size will not be repeated in the present invention.

[0030] Similarly, if Figure 2 and Figure 3 As shown, for the heat treatment component 6, the heat treatment component 6 includes an electric heating module 601, a servo motor 602, a belt reel 603, a limit platform 604, a fixed platform 605, a lifting rod 606 and a limit wheel 607. The top of the heating platform 3 is embedded with a heating wire. The electric heating module 601 is fixed on the sliding platform 8 and electrically connected to the heating wire. The limit platform 604 and the fixed platform 605 are both fixed on the sliding platform 8. The servo motor 602 is fixed to the fixed platform 605, and the output end is coaxially fixed with the belt reel 603. The lifting rod 606 is vertically slidably connected in the limit platform 604, and belt clamps 608 are fixed on the upper and lower sides. The limit wheel 607 includes two and is rotatably connected to the fixed platform 605. The belt on the belt reel 603 passes through between the two limit wheels 607 and is fixed in turn in the belt clamps 608 at the upper and lower ends of the lifting rod 606. The electric heating module model is MDS300-1600, and a power adjustment knob 609 is integrated thereon.

[0031] The servo control process is that the output rotation of the servo motor 602 drives the belt reel 603 to rotate, and the belt on the belt reel 603 is tensioned and limited by two limit wheels 607, and then fixed to the upper and lower ends of the lifting rod 606 through the belt clamp 608, which indirectly converts the shaft rotation of the servo motor 602 into the up and down sliding of the lifting rod 606 in the limit platform 604, thereby realizing the approach and distance of the bottom heating platform 3 of the lifting rod 606 relative to the stamping.

[0032] As for the heat treatment process, it actually relies on the electric heating module 601 to cooperate with the heating table 3 with built-in electric heating wire. The heat transfer requirements of sheet metal workpieces of different sizes are met through the integrated frequency adjustment knob. At the same time, in order to ensure the comprehensive surface contact between the sheet metal workpiece and the heating table 3, the present invention also arranges an isolation component 7 on the inner bottom of the outer box 1 to independently drive the workpiece to correspond to the bottom surface of the heating table 3.

[0033] Specifically, if Figure 4 As shown, the isolation assembly 7 includes a base 701, a lifting cylinder 702, a guide rod 703, a transition platform 704 and a servo turntable 705. The base 701 is fixed to the inner bottom of the outer box 1. The lifting cylinder 702 is built-in and fixed in the base 701, and the output end passes through the base 701 to be fixed to the back center of the transition platform 704. The guide rod 703 includes four and is slidably connected to the four corners of the base 701. The four back corners of the transition platform 704 are connected and fixed to the guide rod 703. The servo turntable 705 is fixed to the center of the top surface of the transition platform 704, and vacuum suction cups 706 are also fixed to the four corners of the top surface. The servo turntable 705 is built in the drain groove 9.

[0034] The corresponding process is that the lifting cylinder 702 outputs upward, driving the four guide rods 703 to slide upward on the bottom platform 701, and synchronously driving the transition platform 704 to rise to the vacuum suction cup 706 to adsorb the bottom surface of the sheet metal workpiece. After the pneumatic control adsorption is realized, the servo turntable 705 can rotate at multiple angles to achieve comprehensive contact between the top surface of the sheet metal workpiece and the bottom surface of the heating platform 3. The heat transfer process is more uniform and the heat coverage efficiency is better. It can better eliminate the hard contact stress and residual stress on the surface of the workpiece after stamping.

[0035] Furthermore, if Figure 1 As shown, for the feeding process of the workpiece, in the present invention, the feed rail 201 includes a material rail 201, an external motor 202, a screw 203 and a rotating table 204, both ends of the screw 203 are slidably connected to the inner bottom of the outer box 1 through the rotating table 204, the external motor 202 is fixed to the outer box 1, and its output end is coaxially fixed with the screw 203, and both ends of the stamping table 4 are slidably connected to the material rail 201 through a slider, and its corresponding screw 203 is threadedly matched with the screw 203 through a connecting block 205.

[0036] The external motor 202 rotates and outputs, driving the screw rod 203 to position and rotate in the rotating table 204. The connecting block 205 that is threadedly matched with the screw rod 203 can cooperate with the limit of the external material rail 201 to realize the servo sliding operation of the stamping table 4 along the track of the material rail 201, meeting the requirements of each stamping and heat treatment station. The overall structure is novel, which greatly improves the stamping processability of the refrigerator door shell sheet metal.

[0037] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. An automatic stamping and blanking equipment for refrigerator door shell, characterized in that: include: An outer box, a feed track placed on the inner bottom of the outer box, a molding table, a heating table and a stamping table slidably connected to the feed track, the top of the box body is also arranged with stamping components and heat treatment components in sequence in the feeding direction of the feed track, the bottom of the box body is also fixed with an isolation component below the corresponding heat treatment component, and vertical sliding tables are also set up on both sides of the feed track, the stamping component is used to servo drive the molding table to press up and down on the sliding table, the heat treatment component is used to servo drive the heating table to rise and fall on the sliding table, the isolation component is used to servo drive the workpiece on the stamping table to contact the heating table accordingly, and a leakage groove corresponding to the molding table is opened in the center of the stamping table.

2. The refrigerator door shell automatic stamping and blanking equipment according to claim 1, characterized in that: The sliding platform comprises a top plate and sliding rods vertically fixed at four corners of the top plate. The top plate is arranged away from the punching platform, and the bottom end of each sliding rod is welded and fixed to the inner bottom of the outer box.

3. The automatic stamping and blanking equipment for refrigerator door shell according to claim 2, characterized in that: The stamping assembly includes a stamping cylinder, a slide plate and a bearing seat. The stamping cylinder is fixed on the top of the top plate and the output end is arranged through the top plate. The two ends of the slide plate are slidably connected to the slide rod through the bearing seat, and the output end of the stamping cylinder is fixed to the center of the top surface of the slide plate.

4. The automatic stamping and blanking equipment for refrigerator door shell according to claim 3, characterized in that: The slide plate is also provided with an adjustment groove perpendicular to the track direction of the feed track, and the top of the molding platform and the slide plate are fixed with bolts in the adjustment groove.

5. The refrigerator door shell automatic stamping and blanking equipment according to claim 2, characterized in that: The heat treatment component includes an electric heating module, a servo motor, a belt reel, a limit table, a fixed table, a lifting rod and a limit wheel. A heating wire is embedded in the top of the heating table. The electric heating module is fixed to the sliding table and electrically connected to the heating wire. The limit table and the fixed table are both fixed to the sliding table. The servo motor is fixed to the fixed table, and the output end is coaxially fixed with the belt reel. The lifting rod is vertically slidably connected to the limit table, and belt clamps are fixed on the upper and lower sides. The limit wheel includes two and is rotatably connected to the fixed table. The belt on the belt reel passes through the limit position between the two limit wheels, and is then fixed in the belt clamps at the upper and lower ends of the lifting rod in sequence.

6. The refrigerator door shell automatic stamping and blanking equipment according to claim 5, characterized in that: The electric heating module model is MDS300-1600, which is also integrated with a power adjustment knob.

7. The refrigerator door shell automatic stamping and blanking equipment according to claim 1, characterized in that: The isolation assembly includes a base, a lifting cylinder, a guide rod, a transition table and a servo turntable. The base is fixed to the inner bottom of the outer box. The lifting cylinder is built into and fixed in the base, and the output end passes through the base to be fixed to the back center of the transition table. The guide rods include four and are slidably connected to the four corners of the base. The four corners of the back of the transition table are connected and fixed to the guide rods. The servo turntable is fixed to the center of the top surface of the transition table, and vacuum suction cups are also fixed to the four corners of the top surface.

8. The automatic stamping and blanking equipment for refrigerator door shells according to claim 7, characterized in that: The servo turntable is built in the drain slot.

9. The refrigerator door shell automatic stamping and blanking equipment according to claim 1, characterized in that: The inner bottom of the outer box is provided with a waste groove corresponding to the mold block, and the model size includes various types.

10. The refrigerator door shell automatic stamping and blanking equipment according to claim 1, characterized in that: The feeding track includes a material rail, an external motor, a screw and a rotating table. The two ends of the screw are slidably connected to the inner bottom of the outer box through the rotating table. The external motor is fixed to the outer box, and its output end is coaxially fixed with the screw. The two ends of the stamping table are slidably connected to the material rail through a slider, and the corresponding screw is matched with the screw thread through a connecting block.

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