Bending mechanism with controllable hot-pressing structure

Abstract

The utility model relates to the technical field of bending, and discloses a bending mechanism with a controllable hot-pressing structure, which comprises a machining table, a hydraulic cylinder fixedly mounted at the right end of the machining table, a connecting frame fixedly connected to the output end of the hydraulic cylinder, a rack fixedly connected to the left end of the connecting frame, and a lead screw rotationally connected to the rear end of the top of the machining table. The other end of the lead screw is fixedly connected with a gear, the gear is in meshed connection with the rack, the left end of the exterior of the lead screw is in threaded connection with a mounting plate, the bottom end of the mounting plate is fixedly connected with a plurality of outer pipes, the interiors of the outer pipes are slidably connected with pushing columns, and the other ends of the outer pipes are fixedly connected with springs. According to the lower die, impurities in the lower die can be conveniently cleaned, the phenomenon that the workpiece bending quality is low due to the fact that the impurities adhere to the interior is reduced, the percent of pass of the bent workpiece can be improved, the cleanliness of the lower die can be improved, the service life of the lower die can be prolonged, and therefore the lower die is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of bending, in particular to a bending mechanism with a controllable hot pressing structure. Background Art

[0002] The bending mechanism is the core component of the bending machine, which is responsible for realizing the bending operation of thin plate materials. It is a mechanism that can heat the plate by controlling the heating element and perform bending operations at a specific temperature. The controllable hot pressing bending mechanism is a special bending mechanism. On the basis of the traditional bending machine, a hot pressing control function is added to meet the temperature requirements of specific materials during the bending process. It is widely used in fields that require high-precision bending and shaping processing, such as aerospace, automobile manufacturing, precision instruments and other industries.

[0003] After searching, the Chinese patent with application number CN202121224319.4 discloses an acrylic sheet bending machine. Since the acrylic sheet is brittle and easy to break during the bending process, it is generally heated before bending. Improper heating will cause the acrylic sheet to stick or bubble. Therefore, the temperature sensor detects the temperature of the heated acrylic sheet. When it is detected that the temperature of the acrylic sheet reaches the preset value, the heater is driven to leave and the voltage of the heater is reduced. While saving electricity, it also avoids further heating, so that the acrylic sheet is bent consistently, avoiding sticking and bubbling, and also ensuring the quality of the bending.

[0004] During the use of the above-mentioned bending machine, foreign particles will be attached to the surface of the workpiece to be bent, and the foreign particles will fall into the lower mold during bending. After the bending machine has been used for a long time, the lower mold will be filled with foreign particles carried by the workpiece due to long-term use. It is not convenient to clean the inside of the lower mold, and the quality of the workpiece during heating and bending is easily reduced due to the obstruction of the particles, which reduces the qualified rate of bending and is inconvenient to use. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a bending mechanism with a controllable hot pressing structure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bending mechanism with a controllable hot pressing structure comprises a processing table, a hydraulic cylinder is fixedly installed on the right end of the processing table, the output end of the hydraulic cylinder is fixedly connected to a connecting frame, the left end of the connecting frame is fixedly connected to a rack, the top rear end of the processing table is rotatably connected to a screw rod, the other end of the screw rod is fixedly connected to a gear, the gear and the rack are meshingly connected, the outer left end of the screw rod is threadedly connected to a mounting plate, the bottom end of the mounting plate is fixedly connected to a plurality of outer tubes, the inner part of the outer tube is slidably connected to a pushing column, the other end of the outer tube is fixedly connected to a spring, the other end of the pushing column is fixedly connected to a cleaning brush, the other end of the spring is fixedly connected to the top of the cleaning brush, the left and right ends of the bottom of the processing table are fixedly connected to a dirt collecting box, and the middle part of the top of the processing table is fixedly connected to a lower mold.

[0007] As a further description of the above technical solution:

[0008] A fixed plate is fixedly connected to the middle of the rear end of the processing table, a liquid storage tank is fixedly connected to the rear end of the fixed plate, a delivery pipe is fixedly connected to the bottom of the left end of the liquid storage tank, and a water pump is fixedly installed in the middle of the delivery pipe.

[0009] As a further description of the above technical solution:

[0010] The other end of the conveying pipe is fixedly connected with a spray head, and the front and rear ends of the processing table are fixedly connected with leaking plates.

[0011] As a further description of the above technical solution:

[0012] Drainage grooves are arranged at both left and right ends of the processing table, and the rear end of the water pump is fixedly installed on the front end of the fixing plate.

[0013] As a further description of the above technical solution:

[0014] A water receiving box is fixedly connected to the middle of the bottom end of the processing table, and a hydraulic cylinder is fixedly installed on the top end of the fixed plate.

[0015] As a further description of the above technical solution:

[0016] The output end of the hydraulic cylinder is fixedly connected with a heating box, and the bottom end of the heating box is fixedly connected with an upper mold.

[0017] As a further description of the above technical solution:

[0018] A temperature sensor is fixedly installed on the top right end of the heating box, and a temperature controller is fixedly installed on the top left end of the heating box.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model adds a function of cleaning the internal impurities of the lower mold to the bending mechanism through the mutual cooperation of the hydraulic cylinder, the connecting frame, the rack, the screw rod, the gear, the mounting plate, the outer tube, the pushing column, the spring, the cleaning brush and the dirt collecting box, reduces the phenomenon of poor bending quality of the workpiece due to the adhesion of impurities inside, is beneficial to improve the qualified rate of the workpiece after bending, and is beneficial to improve the cleanliness of the lower mold and extend the service life of the lower mold, so that it is easy to use.

[0021] 2. The utility model adds a function of water cooling to the surface of the workpiece after the workpiece is bent through the mutual cooperation of the liquid storage tank, the delivery pipe, the spray head, the leak plate, the drainage trough, and the water receiving box, which is beneficial to speed up the cooling speed of the workpiece, thereby improving work efficiency and reducing the phenomenon of work progress being delayed due to static cooling of the workpiece. It is also convenient to collect the coolant, which is beneficial to the recycling of liquid resources, thereby reducing the pollution of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the bending mechanism with a controllable hot pressing structure proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the cleaning brush structure of the bending mechanism with a controllable hot pressing structure proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of a spray head with a bending mechanism with a controllable hot pressing structure proposed by the utility model;

[0025] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the water receiving box structure with a bending mechanism with a controllable hot pressing structure proposed by the utility model;

[0027] Figure 6 This is a schematic diagram of the heating box structure of the bending mechanism with controllable hot pressing structure proposed by the utility model.

[0028] Legend:

[0029] 1. Processing table; 2. Hydraulic cylinder; 3. Connecting frame; 4. Rack; 5. Screw rod; 6. Gear; 7. Mounting plate; 8. Outer tube; 9. Push column; 10. Spring; 11. Cleaning brush; 12. Dirt box; 13. Fixing plate; 14. Liquid storage tank; 15. Delivery pipe; 16. Water pump; 17. Spray head; 18. Leakage plate; 19. Lower mold; 20. Drainage trough; 21. Water tank; 22. Hydraulic cylinder; 23. Heating box; 24. Upper mold; 25. Temperature sensor; 26. Temperature controller. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] As attached Figure 1-5 As shown, an embodiment of the utility model is provided: a bending mechanism with a controllable hot pressing structure, including a processing table 1, a hydraulic cylinder 2 is fixedly installed on the right end of the processing table 1, a connecting frame 3 is fixedly connected to the output end of the hydraulic cylinder 2, a rack 4 is fixedly connected to the left end of the connecting frame 3, a screw rod 5 is rotatably connected to the top rear end of the processing table 1, a gear 6 is fixedly connected to the other end of the screw rod 5, the gear 6 and the rack 4 are meshed, the outer left end of the screw rod 5 is threadedly connected to a mounting plate 7, the bottom end of the mounting plate 7 is fixedly connected to a plurality of outer tubes 8, a push column 9 is slidably connected to the inside of the outer tube 8, and a spring 10 is fixedly connected to the other end of the outer tube 8 The other end of the push column 9 is fixedly connected to a cleaning brush 11, and the other end of the spring 10 is fixedly connected to the top of the cleaning brush 11. The left and right ends of the bottom of the processing table 1 are fixedly connected to a dirt collecting box 12, and the middle part of the top of the processing table 1 is fixedly connected to a lower mold 19, which is convenient for the hydraulic cylinder 2 to drive the connecting frame 3 to drive the movement of the rack 4, so that the rack 4 can be pulled to rotate when it moves, thereby facilitating the rotation of the screw rod 5, and indirectly driving multiple cleaning brushes 11 to move through the mounting plate 7 to clean the surface of the lower mold 19, and the action of the spring 10 is conducive to making multiple cleaning brushes 11 more fit the concave and convex surface of the lower mold 19.

[0032] As attached Figure 3As shown, a fixed plate 13 is fixedly connected to the middle of the rear end of the processing table 1, and a liquid storage tank 14 is fixedly connected to the rear end of the fixed plate 13. A delivery pipe 15 is fixedly connected to the bottom of the left end of the liquid storage tank 14, and a water pump 16 is fixedly installed in the middle of the delivery pipe 15. A spray head 17 is fixedly connected to the other end of the delivery pipe 15. A leak plate 18 is fixedly connected to the front and rear ends of the processing table 1, and drainage grooves 20 are provided at the left and right ends of the processing table 1. The rear end of the water pump 16 is fixedly installed on the front end of the fixed plate 13. The liquid storage tank 14 is used to store coolant, and the spray head 17 is in the shape of a plate with multiple spray holes, which is convenient for large-area spraying on the surface of the lower mold 19. The leak plate 18 facilitates the leakage of coolant and reduces the residence of coolant on the surface of the processing table 1, and the drainage groove 20 is arranged between the two leak plates 18 to facilitate the drainage of the coolant.

[0033] As attached Figure 5 As shown, a water receiving box 21 is fixedly connected to the middle of the bottom end of the processing table 1 to collect the coolant leaking from the leaking plate 18, and a drain pipe is provided at the bottom of the water receiving box 21 to drain the water.

[0034] As attached Figure 6 As shown, a hydraulic cylinder 22 is fixedly installed on the top of the fixed plate 13, a heating box 23 is fixedly connected to the output end of the hydraulic cylinder 22, an upper mold 24 is fixedly connected to the bottom end of the heating box 23, a temperature sensor 25 is fixedly installed on the top right end of the heating box 23, and a temperature controller 26 is fixedly installed on the top left end of the heating box 23, which is beneficial to temperature control when the bending machine is heated for bending.

[0035] Working principle: When the workpiece is bent and temperature controlled, the workpiece is first placed on the surface of the lower mold 19, and then the heating box 23 is turned on according to the temperature controller 26 to start heating, so that the heating box 23 can transfer the temperature to the surface of the upper mold 24, and then the heating temperature is controlled according to the temperature sensor 25. After preheating, the hydraulic cylinder 22 is turned on, so that the hydraulic cylinder 22 drives the heating box 23 to drive the upper mold 24 to press down, so as to facilitate the bending of the workpiece inside the lower mold 19. When it is necessary to clean the impurities inside the lower mold 19, the hydraulic cylinder 2 is turned on, so that the extension of the output end of the hydraulic cylinder 2 drives the connecting frame 3 to move, so that the connecting frame 3 drives the rack 4 to move, and through the meshing of the rack 4 and the gear 6, it is convenient for the rack 4 to pull the gear 6 to rotate, so that the gear 6 drives the screw rod 5 to rotate. When the screw rod 5 rotates, it is convenient to drive the mounting plate 7 to move to the right, so Indirectly drives multiple cleaning brushes 11 to clean the surface and interior of the lower mold 19. When the cleaning brush 11 contacts the lower mold 19, the spring 10 pushes the cleaning brush 11 to clean the dust according to the concave and convex surface of the lower mold 19, thereby improving the fit between the cleaning brush 11 and the lower mold 19, and facilitating the cleaning of the dust into the interior of the dirt receiving box 12, which is beneficial to improving the quality of the workpiece bending. After the bending work, when the workpiece is cooled, first inject coolant into the liquid storage tank 14, and then start the water pump 16. Through the delivery pipe 15, it is convenient to transport the coolant from the interior of the liquid storage tank 14 to the interior of the spray head 17, and then spray it to the interior of the lower mold 19. The sprayed coolant flows to the leak plate 18 through the drainage groove 20, and then flows into the interior of the water receiving box 21, thereby facilitating the collection of the liquid and improving the efficiency of the workpiece cooling after processing.

[0036] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In addition, the electrical control components not mentioned in the present technical solution belong to the prior art and are not shown in the figures, and will not be described in detail in the specification.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bending mechanism with a controllable hot pressing structure, comprising a processing table (1), characterized in that: A hydraulic cylinder (2) is fixedly mounted on the right end of the processing table (1), the output end of the hydraulic cylinder (2) is fixedly connected to a connecting frame (3), the left end of the connecting frame (3) is fixedly connected to a rack (4), a screw rod (5) is rotatably connected to the top rear end of the processing table (1), the other end of the screw rod (5) is fixedly connected to a gear (6), the gear (6) and the rack (4) are meshingly connected, the outer left end of the screw rod (5) is threadedly connected to a mounting plate (7), the mounting plate (7) The bottom end of the processing table (1) is fixedly connected to a plurality of outer tubes (8), the inner part of the outer tube (8) is slidably connected to a push column (9), the other end of the outer tube (8) is fixedly connected to a spring (10), the other end of the push column (9) is fixedly connected to a cleaning brush (11), the other end of the spring (10) is fixedly connected to the top of the cleaning brush (11), the left and right ends of the bottom of the processing table (1) are fixedly connected to a dirt receiving box (12), and the middle part of the top of the processing table (1) is fixedly connected to a lower mold (19).

2. The bending mechanism with controllable hot pressing structure according to claim 1, characterized in that: A fixing plate (13) is fixedly connected to the middle of the rear end of the processing table (1), a liquid storage tank (14) is fixedly connected to the rear end of the fixing plate (13), a delivery pipe (15) is fixedly connected to the bottom of the left end of the liquid storage tank (14), and a water pump (16) is fixedly installed in the middle of the delivery pipe (15).

3. The bending mechanism with controllable hot pressing structure according to claim 2, characterized in that: The other end of the delivery pipe (15) is fixedly connected to a spray head (17), and the front and rear ends of the processing table (1) are fixedly connected to leaking plates (18).

4. The bending mechanism with controllable hot pressing structure according to claim 2, characterized in that: Drainage grooves (20) are provided at both left and right ends of the processing table (1), and the rear end of the water pump (16) is fixedly mounted on the front end of the fixing plate (13).

5. The bending mechanism with controllable hot pressing structure according to claim 4, characterized in that: A water receiving box (21) is fixedly connected to the middle of the bottom end of the processing table (1), and a hydraulic cylinder (22) is fixedly installed on the top end of the fixed plate (13).

6. The bending mechanism with controllable hot pressing structure according to claim 5, characterized in that: The output end of the hydraulic cylinder (22) is fixedly connected to a heating box (23), and the bottom end of the heating box (23) is fixedly connected to an upper mold (24).

7. The bending mechanism with controllable hot pressing structure according to claim 6, characterized in that: A temperature sensor (25) is fixedly mounted on the top right end of the heating box (23), and a temperature controller (26) is fixedly mounted on the top left end of the heating box (23).

Images