Automatic curing equipment and curing method for preparing heater

Abstract

The invention discloses automatic curing equipment and a curing method for preparing a heater, the automatic curing equipment comprises an assembly feeding mechanism, a transfer carrying mechanism, a pre-pressing mechanism and three heating curing mechanisms, the pre-pressing mechanism is internally provided with a pre-pressing mold driven by a pre-pressing servo press to perform preliminary pressing on the heater, the number of the heating curing mechanisms is three, a curing servo press, a force feedback pressing part, a heating module and a hot-pressing sliding table module are arranged in the heating curing mechanism, the curing servo press drives the heating module through the force feedback pressing part to press a heater in a jig disc on the hot-pressing sliding table module, and then the heating module is powered on for heating and curing; and the curing pressure is monitored by utilizing the force feedback pressing part in the heating and curing process. And the elastic pressure applying structure in the elastic pressure assembly ensures that the pressing force applied to each heater is balanced and consistent, and ensures that the product consistency is good, the quality is more stable and the production efficiency is higher when the plurality of heaters are used for heating and curing at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heater production equipment, in particular to an automatic curing device for heater preparation and a curing method. BACKGROUND

[0002] The PTC heater has good thermal conductivity, uniform temperature, long service life, strong mechanical properties, corrosion resistance, safety in use and other advantages. PTC heaters are widely used as heat sources in new energy vehicles, air conditioners and intelligent equipment, and the use of PTC heaters is increasing.

[0003] The PTC heater contains a lower electrode sheet, a heating chip and an upper electrode sheet. The lower electrode sheet and the heating chip, and the heating chip and the upper electrode sheet are all stacked together by silk printing and coating with high-temperature curing glue. After assembly, the internal glue needs to be cured by heating and pressing to fix and bond the parts together.

[0004] The applicant has developed some special heater curing devices, which can well meet the mass production requirements. With the continuous improvement of PTC heater production enterprises in product production and the continuous improvement of production efficiency, new automatic process equipment needs to be further developed to meet new production requirements, further ensure product curing quality under the premise of meeting production efficiency. SUMMARY

[0005] In order to solve the above problems, the purpose of the present application is to provide an automatic curing device for heater preparation. The device is provided with a pre-pressing mechanism and a plurality of heating and curing mechanisms. The structure of the heating and curing mechanism is further improved to ensure that the cured products are consistent, the quality is more stable, and the production efficiency is higher.

[0006] To achieve the above purpose, the present application adopts the following technical scheme: An automatic curing equipment for heater preparation, comprising a component feeding mechanism, a transfer carrying mechanism, a pre-pressing mechanism and a heating and curing mechanism, the heating and curing mechanism comprises three, three said heating and curing mechanisms are arranged side by side, the component feeding mechanism is provided with a displacement mechanism for moving a jig disc loaded with heater products to be processed to a transfer feeding station, the transfer carrying mechanism is used for carrying the jig disc from the transfer feeding station to the pre-pressing mechanism for pre-pressing, and then carrying it to the heating and curing mechanism for curing, the pre-pressing mechanism is provided with a pre-pressing mold driven by a pre-pressing servo press for preliminarily pressing the heater, the heating and curing mechanism is provided with a curing servo press, a force feedback pressing component, a heating module and a hot-pressing sliding table module, the force feedback pressing component is arranged at the output end of the curing servo press, the heating module is arranged at the lower end of the force feedback pressing component, the hot-pressing sliding table module is provided with a moving sliding table for conveying the jig disc carried by the transfer carrying mechanism to the lower side of the heating module, the heating module is provided with an electric heating component and a heating die head, the curing servo press drives the heating module to press the heater in the jig disc on the hot-pressing sliding table module through the force feedback pressing component, and then the heating module is powered to heat and cure, and the force feedback pressing component is used for monitoring the curing pressure during the heating and curing process.

[0007] Further, the heating and curing mechanism is provided with the force feedback pressing component corresponding to the number of heaters in the jig disc, a plurality of groups of the force feedback pressing components are driven to press down simultaneously by the curing servo press, the force feedback pressing component comprises a mounting seat, a pressure sensor, a connecting seat, an elastic pressure assembly and a heat insulation plate, the upper and lower ends of the pressure sensor are fixedly connected with the mounting seat and the connecting seat respectively, the elastic pressure assembly is arranged between the connecting seat and the heat insulation plate, and the heating module is arranged on the bottom surface of the heat insulation plate.

[0008] Further, the elastic pressure assembly comprises a pressure base, at least two movable guide rods, a spring and a pressure connecting plate, the pressure base is arranged on the bottom surface of the connecting seat, the movable guide rod is sleeved in the pressure base, the pressure connecting plate is arranged at the lower end of the movable guide rod, the spring is sleeved in the movable guide rod, and the upper and lower ends of the spring are connected with the pressure base and the pressure connecting plate respectively.

[0009] Further, the mounting seat and the connecting seat on the two sides of the pressure sensor are provided with auxiliary guide rods.

[0010] Further, the output end of the curing servo press is provided with a mounting sliding seat and a mounting sliding plate, the mounting sliding plate can slide horizontally in the mounting sliding seat, and the force feedback pressing component is arranged on the bottom surface of the mounting sliding plate.

[0011] Further, the curing servo press is provided with a balance cylinder on each side, and the output end of the balance cylinder is connected with a mounting slide; the balance cylinder is used for reducing the impact of the gravity of the force feedback pressing component and the heating module on the curing servo press during lifting.

[0012] A curing method of an automatic curing equipment for preparing the heater, comprising the following steps: S1: automatic pre-pressing: the jig tray carried by the assembly loading mechanism is carried from the transfer loading station to the pre-pressing mechanism, and the pre-pressing mold driven by the pre-pressing servo press is used for preliminarily pressing the heater; S2: automatic curing: the jig tray loaded with the pre-pressed product is carried by the transfer carrying mechanism to three heating curing mechanisms for simultaneous work, the force feedback pressing component and the heating module driven by the curing servo press are used for pressing each heater in the jig tray, and then the heater is heated and cured by power supply; during the heating and curing process, the pressure sensor in the force feedback pressing component is used for continuously monitoring the pressure, the curing pressure of each product is controlled to be greater than or equal to 360 kgf, the heating temperature is adjustable and is 100-220 DEG C, and the heating time is 60-100 s; S3: unloading and tray arranging: the jig tray loaded with the cured product in the three heating curing mechanisms is carried by the transfer carrying mechanism to the unloading position and is conveyed to the next process.

[0013] The application has the following beneficial effects: 1: The automatic curing equipment is provided with an assembly loading mechanism, a transfer carrying mechanism, a pre-pressing mechanism and a heating curing mechanism, the pre-pressing mold driven by the pre-pressing servo press in the pre-pressing mechanism is used for preliminarily pressing the heater, the heater can be better heated and cured after pre-pressing, the heating module driven by the force feedback pressing component of the curing servo press in the heating curing mechanism is used for pressing the heater, and then the heater is heated and cured by power supply, the curing pressure is monitored by the force feedback pressing component during the heating and curing process, and the curing quality is reliable; and three heating curing mechanisms are arranged to work cooperatively, and the production efficiency is ensured.

[0014] 2: The force feedback pressing component in the heating curing mechanism is provided with a pressure sensor and an elastic pressure assembly, the elastic pressing structure in the elastic pressure assembly is used for ensuring that the pressing force received by each heater is balanced and consistent, and the multiple heaters can be stably and reliably heated and cured at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the automatic curing equipment for preparing the heater.

[0016] Figure 2 It is a front view schematic diagram of the automatic curing equipment for preparing the heater.

[0017] Figure 3 Fig. 1 is a perspective view of the component feeding mechanism of the present application.

[0018] Figure 4 Fig. 2 is a perspective view of the pre-pressing mechanism of the present application.

[0019] Figure 5 Fig. 3 is a perspective view of the heating and curing mechanism of the present application.

[0020] Figure 6 Fig. 4 is a perspective view of the force feedback pressing component of the present application.

[0021] Figure 7 Fig. 5 is an exploded perspective view of the force feedback pressing component of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS 1, component feeding mechanism; 11, displacement mechanism; 2, displacement carrying mechanism; 3, pre-pressing mechanism; 31, pre-pressing servo press; 32, pre-pressing mold; 4, heating and curing mechanism; 41, curing servo press; 42, force feedback pressing component; 421, mounting seat; 422, pressure sensor; 423, connecting seat; 424, elastic pressure assembly; 4241, pressure base; 4242, movable guide rod; 4243, spring; 4244, pressure connecting plate; 425, heat insulation plate; 426, auxiliary guide rod; 43, heating mold group; 44, hot-pressing slide table mold group; 45, mounting slide seat; 46, mounting slide plate; 47, balance cylinder; 5, jig disc. DETAILED DESCRIPTION

[0023] The present application will be further described in detail below in conjunction with the drawings and specific embodiments: Reference Figures 1-7As shown, an automatic curing device for preparing a heater includes a component feeding mechanism 1, a transfer carrying mechanism 2, a pre-pressing mechanism 3, and a heating and curing mechanism 4. The heating and curing mechanism 4 includes three heating and curing mechanisms 4 arranged side by side and working simultaneously to ensure production efficiency. The component feeding mechanism 1 is provided with two groups of cylinder-driven displacement mechanisms 11 for alternating work to move the jig disc 5 loaded with flat heater products to be processed to the transfer feeding station. The transfer carrying mechanism 2 is provided with a moving slide extending from the component feeding mechanism 1 to the last heating and curing mechanism 4. The moving slide is provided with a lifting platform, and the lifting platform is provided with mechanical clamps for grabbing the jig disc 5. The transfer carrying mechanism 2 can carry the jig disc 5 from the transfer feeding station to the pre-pressing mechanism 3 for pre-pressing, and then to the heating and curing mechanism 4 for curing, respectively. The pre-pressing mechanism 3 is provided with a pre-pressing mold 32 driven by a pre-pressing servo press 31 to preliminarily press the heater. The pre-pressing mechanism 3 is also provided with a displacement platform having the same structure as the displacement mechanism 11, which facilitates the transfer carrying mechanism 2 to carry the jig disc 5 and deliver the jig disc 5 to the pre-pressing mold 32 below for pre-pressing. The heating and curing mechanism 4 is provided with a curing servo press 41, a force feedback pressing component 42, a heating module 43, and a hot-pressing slide module 44. The force feedback pressing component 42 is arranged at the output end of the curing servo press 41. The heating module 43 is arranged at the lower end of the force feedback pressing component 42. The hot-pressing slide module 44 is provided with a moving slide for delivering the jig disc 5 carried by the transfer carrying mechanism 2 to the lower side of the heating module 43. The heating module 43 is provided with an electric heating component and a heating die head. The curing servo press 41 drives the heating module 43 through the force feedback pressing component 42 to press the heater in the jig disc 5 on the hot-pressing slide module 44, and then the heating module 43 is powered to heat and cure. The force feedback pressing component 42 is used for curing pressure monitoring during the heating and curing process.

[0024] Each of the heating curing mechanism 4 is provided with the force feedback compression components 42 corresponding to the number of heaters in the fixture disc 5, each of the curing servo press 41 drives multiple sets of force feedback compression components 42 to press down at the same time, the force feedback compression components 42 include mounting seat 421, pressure sensor 422, connecting seat 423, elastic pressure assembly 424 and heat insulation plate 425, the upper and lower ends of the pressure sensor 422 are fixedly connected with the mounting seat 421 and the connecting seat 423 respectively, the elastic pressure assembly 424 is arranged between the connecting seat 423 and the heat insulation plate 425, and the heating module 43 is arranged on the bottom surface of the heat insulation plate 425; After pressing down, the heating die in the heating module 43 is in full contact with the electrode sheet in the heater, and cannot contact the plastic frame of the heater. The elastic pressure assembly 424 includes a pressure base 4241, at least two movable guide rods 4242, a spring 4243 and a pressure connecting plate 4244, the pressure base 4241 is arranged on the bottom surface of the connecting seat 423, the movable guide rod 4242 is sleeved in the pressure base 4241, the pressure connecting plate 4244 is arranged at the lower end of the movable guide rod 4242, the spring 4243 is sleeved in the movable guide rod 4242, and the upper and lower ends of the spring 4243 are connected with the pressure base 4241 and the pressure connecting plate 4244 respectively; Through several groups of springs 4243, the pressing force received by each heater is balanced and consistent, and the heating and curing is reliable. The auxiliary guide rod 426 is arranged between the mounting seat 421 and the connecting seat 423 on both sides of the pressure sensor 422, which is used for protecting the pressure sensor 422 to run smoothly up and down.

[0025] The output end of the curing servo press 41 is provided with a mounting slide 45 and a mounting slide plate 46, the mounting slide plate 46 can slide horizontally in the mounting slide 45, and the force feedback compression components 42 are arranged on the bottom surface of the mounting slide plate 46; The force feedback compression components 42 (and the heating module 43 installed below) can be slid out as a whole for maintenance or replacement. Each side of the curing servo press 41 is provided with a balance cylinder 47, and the output end of the balance cylinder 47 is connected with the mounting slide 45; The balance cylinder 47 is used for reducing the impact of the gravity of the force feedback compression components 42 and the heating module 43 on the curing servo press 41 when lifting.

[0026] A curing method of an automatic curing equipment for preparing a heater, comprising the following steps: S1: automatic pre-pressing: the fixture disc 5 carried by the assembly feeding mechanism 1 is carried from the transfer feeding station to the pre-pressing mechanism 3, and the pre-pressing die 32 driven by the pre-pressing servo press 31 preliminarily presses the heater; S2: automatic curing: the transfer mechanism 2 carries the jig plate 5 loaded with the pre-pressed products to the three heating curing mechanisms 4 working simultaneously, the curing servo press 41 drives the force feedback pressing component 42 and the heating module 43 to press each heater in the jig plate 5 and then power heating and curing; during the heating and curing process, the pressure sensor 422 in the force feedback pressing component 42 is used to continuously monitor the pressure, the curing pressure of each product is controlled to be greater than or equal to 360 kgf, the curing heating temperature is adjustable and is 100-220℃, the heating time is 60-100s, and preferably 90s; S3: blanking and discarding: the transfer mechanism 2 carries the jig plate 5 loaded with the cured products in the three heating curing mechanisms 4 to the blanking position and transports to the next process.

[0027] The above is only a specific embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. An automated curing apparatus for preparing heaters, characterized in that: The system includes a component loading mechanism (1), a transfer and handling mechanism (2), a pre-pressing mechanism (3), and a heating and curing mechanism (4). The heating and curing mechanism (4) comprises three units arranged side-by-side. The component loading mechanism (1) includes a transfer mechanism (11) for moving a jig tray (5) containing the heater product to the transfer loading station. The transfer and handling mechanism (2) moves the jig tray (5) from the transfer loading station to the pre-pressing mechanism (3) for pre-pressing the heater, and then transfers it to the heating and curing mechanism (4) for curing. The pre-pressing mechanism (3) includes a pre-pressing mold (32) driven by a pre-pressing servo press (31) for initial pressing of the heater. The heating and curing mechanism (4) includes a curing servo press (41) and a force feedback clamping component (…). 42) Heating module (43) and hot press slide module (44). The force feedback clamping component (42) is located at the output end of the curing servo press (41). The heating module (43) is located at the lower end of the force feedback clamping component (42). The hot press slide module (44) is provided with a movable slide for transporting the jig disk (5) transported by the transfer and handling mechanism (2) to the bottom of the heating module (43). The heating module (43) is provided with an electric heating component and a heating mold head. The curing servo press (41) drives the heating module (43) through the force feedback clamping component (42) to press the heater in the jig disk (5) on the hot press slide module (44). Then the heating module (43) is powered on to heat and cure. During the heating and curing process, the force feedback clamping component (42) is used to monitor the curing pressure.

2. The automatic curing equipment for heater preparation according to claim 1, characterized in that: Each of the heating and curing mechanisms (4) is provided with a force feedback clamping component (42) corresponding to the number of heaters in the fixture plate (5). Each curing servo press (41) drives multiple sets of force feedback clamping components (42) to press down simultaneously. The force feedback clamping component (42) includes a mounting base (421), a pressure sensor (422), a connecting base (423), an elastic pressure assembly (424), and a heat insulation plate (425). The upper and lower ends of the pressure sensor (422) are fixedly connected to the mounting base (421) and the connecting base (423) respectively. The elastic pressure assembly (424) is located between the connecting base (423) and the heat insulation plate (425). The heating module (43) is located on the bottom surface of the heat insulation plate (425).

3. The automatic curing equipment for preparing a heater according to claim 2, characterized in that: The elastic pressure assembly (424) includes a pressure base (4241), at least two movable guide rods (4242), a spring (4243), and a pressure connecting plate (4244). The pressure base (4241) is located on the bottom surface of the connecting seat (423). The movable guide rods (4242) are sleeved in the pressure base (4241). The pressure connecting plate (4244) is located at the lower end of the movable guide rods (4242). The spring (4243) is sleeved in the movable guide rods (4242). The upper and lower ends of the spring (4243) are connected to the pressure base (4241) and the pressure connecting plate (4244) respectively.

4. The automatic curing equipment for heater preparation according to claim 2, characterized in that: An auxiliary guide rod (426) is provided between the mounting base (421) and the connecting base (423) on both sides of the pressure sensor (422).

5. The automatic curing equipment for preparing a heater according to claim 2, characterized in that: The output end of the curing servo press (41) is provided with a mounting slide (45) and a mounting plate (46). The mounting plate (46) can slide horizontally in the mounting slide (45), and the force feedback clamping component (42) is provided on the bottom surface of the mounting plate (46).

6. The automatic curing equipment for heater preparation according to claim 5, characterized in that: The curing servo press (41) is provided with a balance cylinder (47) on each side. The output end of the balance cylinder (47) is connected to the mounting slide (45). The balance cylinder (47) is used to reduce the impact of the gravity of the force feedback clamping component (42) and the heating module (43) on the curing servo press (41) during lifting.

7. A curing method using the automatic curing equipment for preparing the heater according to claim 2, characterized in that: Includes the following steps: S1: Automatic pre-pressing: The jig tray (5) transported by the component loading mechanism (1) is transported from the transfer loading station to the pre-pressing mechanism (3), and the pre-pressing mold (32) driven by the pre-pressing servo press (31) performs preliminary pressing on the heater; S2: Automatic curing: The transfer and handling mechanism (2) transports the jig tray (5) loaded with pre-compressed products to the three heating and curing mechanisms (4) for simultaneous operation. The curing servo press (41) drives the force feedback clamping component (42) and the heating module (43) to clamp each heater in the jig tray (5) before powering on for heating and curing. During the heating and curing process, the pressure sensor (422) in the force feedback clamping component (42) continuously monitors the pressure and controls the curing pressure of each product to be ≥360kgf. The curing heating temperature is adjustable from 100 to 220℃, and the heating time is 60-100s. S3: Unloading and traying: The transfer and handling mechanism (2) moves the jig trays (5) containing the cured products in the three heating and curing mechanisms (4) to the unloading position and conveys them to the next process.

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