A fully automatic packaging device and method for thermal protector

Abstract

The present invention relates to the field related to electrical components, and specifically to a fully automatic packaging device for thermal protectors and a method thereof, comprising a conveyor belt and a long strip push frame, and also comprising an upper fixed platform, a lower fixed platform, a feeding platform, an upper feed plate, a lower feed plate, an upper support mechanism, a lower support mechanism, an upper clamping block and a lower clamping block, and an outer limit frame is fixedly arranged on the top of the feeding platform; the upper support mechanism and the lower support mechanism have the same structure, and the upper support mechanism includes two support rods. After the thermal protector is put on the end of the sheath, the support rods are driven to rotate by the rotation of four rotating rods, and the characteristics of the sheath that can be elastically deformed and reset and the original approximately elliptical structure of the sheath are utilized to make the four support rods rotate just into the gap between the sheath and the thermal protector, so that the support rods can be easily withdrawn without touching the thermal protector, thereby avoiding damage to the thermal protector.

Description

Technical Field

[0001] The invention relates to the field of electrical components, and in particular to a fully automatic packaging device and method for a thermal protector. Background Art

[0002] The thermal protector is a combination of two different alloys. When current passes through it, it will generate heat. Due to the different thermal expansion coefficients of the two different alloys, the alloys are bound to bend in one direction, and the contacts will be separated, and the power will be cut off. The bending speed is proportional to the current and the ambient temperature. This protects the electrical equipment. The main body of the thermal protector is a rectangular sheet composed of two alloys. Two leads are connected to one end of the two alloys. At the end of production, a plastic film-like sheath is often put on the two alloys, and then the two ends of the sheath are sealed by ultrasonic welding, which fully protects the two alloys.

[0003] The conventional packaging device capable of installing a sheath on a thermal protector has the following shortcomings: the sheath outside the thermal protector has a certain degree of flexible deformation capability, and at the same time it also has a certain degree of rigidity. In order to reduce costs, most of the sheaths are designed with a gap inside that is only slightly larger than the two alloy pieces of the thermal protector, and the sheath is approximately an elliptical tube structure in a normal state, but the two alloy pieces of the thermal protector are a rectangular sheet structure, and the shapes of the two are not completely matched. In this way, when the sheath is mounted on the thermal protector, if the sheath is mounted in a normal state, the alignment of the thermal protector and the sheath must be strictly ensured, and during the initial mounting, once the thermal protector and the sheath shake, they are easily misaligned, resulting in the inability to normally install the sheath on the thermal protector. Therefore, some packaging equipment still uses manual assembly in this step, and a few automatic packaging equipment also find it difficult to completely avoid the misalignment problem of the sheath and the thermal protector. Therefore, it is necessary to design a new packaging device and method to solve such problems. Summary of the invention

[0004] Based on this, it is necessary to provide a fully automatic packaging device and method for a thermal protector in response to the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] A fully automatic packaging device for a thermal protector, comprising a conveyor belt for conveying a plurality of thermal protectors and a long push frame for pushing a jacket, and also comprising:

[0007] An upper fixed platform and a lower fixed platform are horizontally fixed up and down and arranged beside the conveyor belt;

[0008] A feeding platform capable of vertically lifting and lowering on a lower fixed platform, with an outer limit frame for placing the sheath fixedly arranged on the top;

[0009] The upper feed plate and the lower feed plate, which can approach and move away from the conveyor belt, are respectively slidably arranged on the upper fixed platform and the feeding platform in the horizontal direction;

[0010] An upper supporting mechanism and a lower supporting mechanism are respectively fixedly arranged on the upper feed plate and the lower feed plate, and the two have the same structure, and the upper supporting mechanism includes two supporting rods that can swing outward in opposite directions on the upper feed plate to open the sheath;

[0011] The upper clamping block and the lower clamping block can be respectively lifted and lowered vertically on the upper fixing platform and the lower fixing platform, and can clamp and fix the thermal protector when the two are close to each other.

[0012] Preferably, the upper fixed table and the feeding platform are respectively fixed with a first bracket and a second bracket, and the upper feed plate and the lower feed plate are respectively fixed with two first optical axes and two second optical axes in a horizontal state, the two first optical axes are slidably set on the first bracket, and the two second optical axes are slidably set on the second bracket, and the first bracket and the second bracket are respectively fixed with a first micro electric push rod and a second micro electric push rod, and the output ends of the first micro electric push rod and the second micro electric push rod are both horizontally facing the conveyor belt, and the output ends of the first micro electric push rod and the second micro electric push rod are respectively fixedly connected to the upper feed plate and the lower feed plate.

[0013] Preferably, the upper support mechanism also includes two rotating rods symmetrically arranged at the lower end of the upper feed plate, two second transverse axes symmetrically axially arranged at the lower end of the upper feed plate, two gears coaxially fixedly connected to the two second transverse axes, and a mini motor fixedly arranged on the upper feed plate, one end of each rotating rod is integrally formed with a first transverse axis axially connected to the upper feed plate, two support rods are respectively fixedly arranged at the free ends of the two rotating rods, the two first transverse axes are respectively transmission-connected to the two second transverse axes, and the two gears are meshed, and the output shaft of the mini motor is transmission-connected to one of the second transverse axes.

[0014] Preferably, the mini motor is fixed on the upper feed plate by a third bracket, the output shaft of the mini motor is connected to the corresponding second transverse axis by a belt drive, and the second transverse axis on each side is connected to the corresponding first transverse axis by a belt drive.

[0015] Preferably, the outer limit frame is fixedly arranged in a horizontal state on the top of the feeding platform, and four evenly distributed limit vertical axes are fixedly connected to the feeding platform. The lower ends of the four limit vertical axes are slidably arranged on the lower fixed platform, and a third micro-electric push rod with its output end facing vertically upward is also fixedly arranged on the lower fixed platform. A fourth bracket is also fixedly arranged on the bottom of the feeding platform, and the output end of the third micro-electric push rod is fixedly connected to the fourth bracket.

[0016] Preferably, a fourth micro electric push rod and a fifth micro electric push rod are fixedly arranged on the upper fixed table and the lower fixed table respectively, and the output end of the fourth micro electric push rod is vertically downward, and the output end of the fifth micro electric push rod is vertically upward, and the output ends of the fourth micro electric push rod and the fifth micro electric push rod are fixedly connected to the upper clamping block and the lower clamping block respectively.

[0017] Preferably, the facing ends of the upper clamping block and the lower clamping block are fixedly provided with buffer rubber pads for protecting the thermal protector.

[0018] A method for using the above-mentioned fully automatic packaging device for thermal protectors, the method comprising the following steps:

[0019] S1, the upper clamp block and the lower clamp block move away from each other, the feeding platform drops to the lowest position, the long strip push frame retreats to the extreme position away from the conveyor belt, and the upper feed plate and the lower feed plate move synchronously in the direction away from the conveyor belt, so that the support rod on the lower feed plate is close to the outer limit frame;

[0020] S2, the conveyor belt conveys the thermal protector to the upper fixed platform and the lower fixed platform, the upper clamp block and the lower clamp block approach each other to clamp the thermal protector, the feeding platform rises so that the sheath in the outer limit frame is flush with the thermal protector, and then the long push frame moves horizontally toward the conveyor belt to press against the corresponding end of the conveyor belt, and the upper feed plate and the lower feed plate then move horizontally away from the conveyor belt, so that the four support rods retreat into the sheath;

[0021] S3, the upper support mechanism and the lower support mechanism work synchronously to make the four support rods swing outward synchronously to open the corresponding ends of the jacket, and then the upper feed plate, the lower feed plate and the long strip push frame are synchronously translated toward the conveyor belt, so that the opened part of the jacket is placed on the thermal protector;

[0022] S4, the upper supporting mechanism and the lower supporting mechanism act synchronously, so that the four supporting rods are synchronously moved inward to the gap between the jacket and the thermal protector, and then the upper feeding plate and the lower feeding plate are synchronously translated toward the conveyor belt, so that the four supporting rods exit the jacket, and then the upper supporting mechanism and the lower supporting mechanism act synchronously, so that the four supporting rods are moved inward to the outside of the jacket to avoid the jacket;

[0023] S5, the long strip push frame moves toward the direction approaching the conveyor belt, and the upper clamping block and the lower clamping block then move away from each other to release the thermal protector, so that the sheath is completely mounted on the thermal protector.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] First, the present invention uses four support rods to prop up the corresponding end of the sheath before the sheath is put on the thermal protector, and after the corresponding end of the sheath is propped up, its cross-section is a rectangular structure larger than the end surface of the thermal protector, so that the end of the sheath can be put on the thermal protector more easily;

[0026] Secondly, in the present invention, before the thermal protector is put on the sheath, the thermal protector is clamped and fixed by the upper clamp block and the lower clamp block, so as to ensure the stability of the thermal protector during the packaging process, and buffer rubber pads are arranged at the opposite ends of the upper clamp block and the lower clamp block to protect the thermal protector;

[0027] Thirdly, after the thermal protector is put on the end of the sheath, the present invention drives the support rod to rotate through the rotation of four rotating rods, and utilizes the characteristics of the sheath that can elastically deform and reset and the original approximately elliptical structure of the sheath to make the four support rods rotate just to the gap between the sheath and the thermal protector, so that the support rods can be easily withdrawn without touching the thermal protector, avoiding damage to the thermal protector. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The three-dimensional structure of the embodiment is shown in FIG. Figure 1 ;

[0029] Figure 2 The three-dimensional structure of the embodiment is shown in FIG. Figure 2 ;

[0030] Figure 3 yes Figure 2 A magnified view of the local structure at point A in the middle;

[0031] Figure 4 It is a three-dimensional structural exploded view of the upper fixing platform and the feeding platform of the embodiment;

[0032] Figure 5 yes Figure 4 A magnified view of the local structure at B in the middle;

[0033] Figure 6 is a three-dimensional structural exploded view of the upper feed plate and the mini motor of the embodiment;

[0034] Figure 7 yes Figure 6 A magnified view of the local structure at C in the middle;

[0035] Figure 8 1 is a schematic diagram of the three-dimensional structure of the upper feed plate and the mini motor of the embodiment;

[0036] Fig. 9 It is a three-dimensional structural exploded view of the feeding platform and the lower feeding plate of the embodiment;

[0037] Fig.10 is a schematic plan view of the embodiment in which the sheath is stretched open by four support rods;

[0038] Fig.11 is a schematic plan view of the embodiment when four support rods are moved to the gap between the sheath and the thermal protector;

[0039] Fig.12It is a schematic plan view of the four support rods of the embodiment when they are moved to the outside of the sheath.

[0040] The numbers in the figure are: 1. thermal protector; 2. sheath; 3. long push frame; 4. upper fixed platform; 5. lower fixed platform; 6. feeding platform; 7. outer limit frame; 8. upper feed plate; 9. lower feed plate; 10. support rod; 11. upper clamping block; 12. lower clamping block; 13. first bracket; 14. second bracket; 15. first optical axis; 16. second optical axis; 17. first micro electric push rod; 18. second micro electric push rod; 19. rotating rod; 20. second horizontal axis; 21. gear; 22. mini motor; 23. first horizontal axis; 24. third bracket; 25. limit vertical axis; 26. third micro electric push rod; 27. fourth bracket; 28. fourth micro electric push rod; 29. ​​fifth micro electric push rod; 30. buffer rubber pad. DETAILED DESCRIPTION

[0041] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0042] refer to Figures 1 to 12 The fully automatic packaging device for thermal protectors shown in the figure comprises a conveyor belt for conveying a plurality of thermal protectors 1 and a long push frame 3 for pushing the sheath 2, and further comprises:

[0043] An upper fixed platform 4 and a lower fixed platform 5 are horizontally fixedly arranged on the sides of the conveyor belt;

[0044] A feeding platform 6 capable of vertically lifting on the lower fixed platform 5, with an outer limit frame 7 fixedly provided on the top for placing the sheath 2;

[0045] An upper feed plate 8 and a lower feed plate 9, which can approach and move away from the conveyor belt, are respectively slidably arranged on the upper fixed platform 4 and the feeding platform 6 in a horizontal direction;

[0046] The upper support mechanism and the lower support mechanism are respectively fixedly arranged on the upper feed plate 8 and the lower feed plate 9, and the two have the same structure, and the upper support mechanism includes two support rods 10 that can swing outward in opposite directions on the upper feed plate 8 to open the sheath 2;

[0047] The upper clamping block 11 and the lower clamping block 12 can be vertically lifted and lowered on the upper fixing platform 4 and the lower fixing platform 5 respectively, and can clamp and fix the thermal protector 1 when the two are close to each other.

[0048] The conveyor belt is not shown in the figure. The conveyor belt includes two belts that clamp the leads of the thermal protector 1 in opposite directions. The two belts move synchronously to drive the thermal protector 1 forward. The conveyor belt transports the thermal protector 1 to the upper fixed platform 4 and the lower fixed platform 5 and then stops running, waiting for the sheath 2 to be put on the thermal protector 1 before continuing to move. After the thermal protector 1 moves to the upper fixed platform 4 and the lower fixed platform 5, the upper clamping block 11 and the lower clamping block 12 approach each other and clamp the thermal protector 1, so that the position of the thermal protector 1 is fixed (the thermal protector 1 is always clamped by the conveyor belt to move its leads when it is transported on the conveyor belt. After the conveyor belt transports the thermal protector 1 to the position of the sheath 2, the thermal protector 1 is aligned with the sheath 2 in the horizontal direction. However, the leads of the thermal protector 1 have a certain elasticity after all, and the conveyor belt alone cannot ensure that the thermal protector 1 does not shake in the vertical direction, which makes it impossible for the thermal protector 1 to be aligned with the sheath 2 in the vertical direction. , the upper clamping block 11 and the lower clamping block 12 play the role of aligning the thermal protector 1 and the sheath 2 in the vertical direction), and at the same time, the feeding platform 6 rises so that the outer limit frame 7 is flush with the thermal protector 1 (after the feeding platform 6 rises, the sheath 2 in the outer limit frame 7 will be mounted on the thermal protector 1, and each time the feeding platform 6 descends, the new sheath 2 will be fed into the outer limit frame 7, and the corresponding feeding device is not shown in the figure), then the upper feeding plate 8 and the lower feeding plate 9 are synchronously translated in the direction away from the conveyor belt, driving the support rods 10 in the upper support mechanism and the lower support mechanism to enter the sheath 2, and at the same time, the long strip pushing frame 3 is translated in the direction close to the conveyor belt. After the long strip pushing frame 3 is translated, it enters the outer limit frame 7 and presses against the sheath 2, and makes the corresponding ends of the sheath 2 press against the four support rods 10, and the two support rods 10 of the upper support mechanism and the lower support mechanism are then synchronously pushed outward in the opposite direction, so that the corresponding ends of the sheath 2 are properly pulled outward (that is, as shown in the figure). Fig.10 As shown in the state), the subsequent jacket 2 can be put on the thermal protector 1, and then the long push frame 3, the upper feed plate 8 and the lower feed plate 9 are synchronously close to the conveyor belt, so that the jacket 2 is close to the thermal protector 1 and then put on the thermal protector 1. After the corresponding end of the jacket 2 is put on the thermal protector 1, the two support rods 10 of the upper support mechanism and the lower support mechanism are synchronously close to each other until the four support rods 10 are moved to the gap between the jacket 2 and the thermal protector 1 (that is, as shown in the state shown in the state), so as to ensure that the subsequent jacket 2 can be put on the thermal protector 1, and then the long push frame 3, the upper feed plate 8 and the lower feed plate 9 are synchronously close to the conveyor belt, so that the jacket 2 is close to the thermal protector 1 and then put on the thermal protector 1. After the corresponding end of the jacket 2 is put on the thermal protector 1, the two support rods 10 of the upper support mechanism and the lower support mechanism are synchronously close to each other until the four support rods 10 are moved to the gap between the jacket 2 and the thermal protector 1 (that is, as shown in the state shown in the state shown in the state), Fig.11 As shown in the state), the upper feed plate 8 and the lower feed plate 9 continue to synchronously approach the conveyor belt, so that the four support rods 10 exit the sheath 2. After the four support rods 10 exit the sheath 2, the two support rods 10 of the upper support mechanism and the lower support mechanism continue to synchronously approach each other until the four support rods 10 move to the outside of the entire sheath 2 (i.e., as shown in the state shown in the state), the upper feed plate 8 and the lower feed plate 9 continue to synchronously approach the conveyor belt, so that the four support rods 10 exit the sheath 2. Fig.12The state shown in the figure ensures that the subsequent sleeve 2 will not conflict with the support rod 10 during its movement toward the conveyor belt. Then, the upper feed plate 8 and the lower feed plate 9 will synchronously move away from the conveyor belt and reset to their initial positions, and the long push frame 3 will continue to move toward the conveyor belt, so that the sleeve 2 is completely inserted into the thermal protector 1. The upper clamping block 11 and the lower clamping block 12 are released in time before the sleeve 2 approaches. Then, the long push frame 3 moves away from the conveyor belt and resets to its initial position. The upper clamping block 11, the lower clamping block 12 and the feeding platform 6 are all reset to their initial positions, waiting to set the sleeve 2 on the next thermal protector 1.

[0049] In order to enable the upper feed plate 8 and the lower feed plate 9 to approach and move away from the conveyor belt in the horizontal direction, the following features are specifically set:

[0050] The upper fixed table 4 and the feeding platform 6 are respectively fixed with a first bracket 13 and a second bracket 14, and the upper feed plate 8 and the lower feed plate 9 are respectively fixed with two first optical axes 15 and two second optical axes 16 in a horizontal state, the two first optical axes 15 are slidably set on the first bracket 13, and the two second optical axes 16 are slidably set on the second bracket 14, and the first bracket 13 and the second bracket 14 are respectively fixed with a first micro electric push rod 17 and a second micro electric push rod 18, and the output ends of the first micro electric push rod 17 and the second micro electric push rod 18 are both horizontally facing the conveyor belt, and the output ends of the first micro electric push rod 17 and the second micro electric push rod 18 are respectively fixedly connected to the upper feed plate 8 and the lower feed plate 9.

[0051] The upper feed plate 8 is slidably arranged on the first bracket 13 along the horizontal direction through two first optical axes 15. After the output end of the first micro-electric push rod 17 is extended and retracted, the upper feed plate 8 can be driven to slide horizontally on the first bracket 13, and then the upper feed plate 8 is controlled to approach or move away from the conveyor belt. Similarly, the lower feed plate 9 is driven by the second micro-electric push rod 18 to approach or move away from the conveyor belt.

[0052] In order to make the two support rods 10 in the upper support mechanism synchronously and oppositely support the sheath 2 outward, the following features are specifically provided:

[0053] The upper support mechanism also includes two rotating rods 19 symmetrically arranged at the lower end of the upper feed plate 8, two second transverse axes 20 symmetrically axially arranged at the lower end of the upper feed plate 8, two gears 21 coaxially fixedly connected to the two second transverse axes 20, and a mini motor 22 fixedly arranged on the upper feed plate 8. One end of each rotating rod 19 is integrally formed with a first transverse axis 23 axially connected to the upper feed plate 8. The two support rods 10 are respectively fixedly arranged at the free ends of the two rotating rods 19. The two first transverse axes 23 are respectively connected to the two second transverse axes 20 in transmission, and the two gears 21 are meshed. The output shaft of the mini motor 22 is connected to one of the second transverse axes 20 in transmission.

[0054] In the upper support mechanism, after the mini motor 22 drives one of the second horizontal axes 20 to rotate, under the transmission action of the two gears 21 meshing with each other, the two second horizontal axes 20 are synchronously reversed, and then the two first horizontal axes 23 are driven to reverse synchronously, so that the two rotating rods 19 are synchronously reversed, and finally the two support rods 10 are driven to rotate synchronously, so that the two support rods 10 can synchronously open the sheath 2 in opposite directions, and similarly, the two support rods 10 can also be synchronously moved toward each other. The structure of the lower support mechanism is consistent with that of the upper support mechanism, which will not be repeated here.

[0055] In order to connect the mini motor 22, the upper feed plate 8 and the two first transverse axes 23 and the second transverse axis 20, the following features are specifically provided:

[0056] The mini motor 22 is fixedly mounted on the upper feed plate 8 via a third bracket 24 , and the output shaft of the mini motor 22 is connected to the corresponding second transverse axis 20 via a belt transmission, and the second transverse axis 20 on each side is connected to the corresponding first transverse axis 23 via a belt transmission.

[0057] After the output shaft of the mini motor 22 is connected to the corresponding second horizontal axis 20 by belt transmission, the mini motor 22 can drive the corresponding second horizontal axis 20 to rotate synchronously in the same direction. Similarly, after the second horizontal axis 20 is connected to the corresponding first horizontal axis 23 by belt transmission, the second horizontal axis 20 can drive the corresponding first horizontal axis 23 to rotate synchronously in the same direction. Under the action of the two gears 21, the two second horizontal axes 20 maintain synchronous reverse rotation, thereby achieving synchronous reverse rotation of the two rotating rods 19.

[0058] In order to connect the lower fixed platform 5 and the feeding platform 6, the following features are specifically set:

[0059] The outer limit frame 7 is fixedly arranged in a horizontal state on the top of the feeding platform 6, and four evenly distributed limit vertical shafts 25 are fixedly connected to the feeding platform 6. The lower ends of the four limit vertical shafts 25 are slidably arranged on the lower fixed platform 5. The lower fixed platform 5 is also fixedly arranged with a third micro electric push rod 26 with the output end facing vertically upward. A fourth bracket 27 is also fixedly arranged at the bottom of the feeding platform 6, and the output end of the third micro electric push rod 26 is fixedly connected to the fourth bracket 27.

[0060] The end of the outer limit frame 7 close to and away from the conveyor belt is in an open state, and the inside thereof is a through groove structure slightly larger than the outer contour of the long push frame 3. The long push frame 3 is a long quadrangular prism structure, and the long push frame 3 is closed at one end close to the conveyor belt, so as to ensure that the long push frame 3 can contact and push the sheath 2 after being pushed into the through groove in the outer limit frame 7. With the cooperation of the four limiting vertical shafts 25 and the lower fixed platform 5, the output end of the third micro electric push rod 26 can drive the feeding platform 6 to rise and fall vertically on the lower fixed platform 5 after extension and contraction.

[0061] In order to clamp the thermal protector 1 to a state where it can be flush with the sheath 2 by means of the upper clamping block 11 and the lower clamping block 12, the following features are specifically provided:

[0062] A fourth micro electric push rod 28 and a fifth micro electric push rod 29 are fixedly arranged on the upper fixed platform 4 and the lower fixed platform 5, respectively, and the output end of the fourth micro electric push rod 28 is vertically downward, and the output end of the fifth micro electric push rod 29 is vertically upward, and the output ends of the fourth micro electric push rod 28 and the fifth micro electric push rod 29 are fixedly connected to the upper clamping block 11 and the lower clamping block 12, respectively.

[0063] The leads of the thermal protector 1 are clamped by the conveyor belt and transported forward by the conveyor belt. Although the leads of the thermal protector 1 have a certain rigidity, the thermal protector 1 may still swing in the vertical direction. In order to ensure the alignment of the sheath 2 and the thermal protector 1, after the fourth micro-electric push rod 28 and the fifth micro-electric push rod 29 work synchronously, the upper clamping block 11 and the lower clamping block 12 can be close to each other to clamp the thermal protector 1, thereby fixing the thermal protector 1 at a certain height and keeping the corresponding end of the thermal protector 1 level, so that the feeding platform 6 can rise a certain distance to make the outer limit frame 7 flush with the thermal protector 1, thereby ensuring that the sheath 2 in the outer limit frame 7 can be accurately mounted on the thermal protector 1 after being sent out.

[0064] In order to prevent the thermal protector 1 from being damaged during the process of the upper clamping block 11 and the lower clamping block 12 clamping the thermal protector 1, the following features are specifically provided:

[0065] Buffer rubber pads 30 for protecting the thermal protector 1 are fixedly provided at the facing ends of the upper clamping block 11 and the lower clamping block 12 .

[0066] The buffer rubber pad 30 can not only clamp and stabilize the thermal protector 1 , but also effectively prevent the thermal protector 1 from being damaged during the hard contact between the upper clamping block 11 and the lower clamping block 12 .

[0067] A method for using the above-mentioned fully automatic packaging device for thermal protectors, the method comprising the following steps:

[0068] S1, the upper clamping block 11 and the lower clamping block 12 move away from each other, the feeding platform 6 drops to the lowest position, the long strip push frame 3 retreats to the extreme position away from the conveyor belt, and the upper feed plate 8 and the lower feed plate 9 move synchronously in the direction away from the conveyor belt, so that the upper support rod 10 of the lower feed plate 9 is close to the outer limit frame 7;

[0069] S2, the conveyor belt conveys the thermal protector 1 to the upper fixed platform 4 and the lower fixed platform 5, the upper clamping block 11 and the lower clamping block 12 approach each other to clamp the thermal protector 1, the feeding platform 6 rises so that the sheath 2 in the outer limit frame 7 is flush with the thermal protector 1, and then the long strip push frame 3 is translated toward the conveyor belt to press against the corresponding end of the conveyor belt, and the upper feed plate 8 and the lower feed plate 9 are then translated away from the conveyor belt, so that the four support rods 10 retreat into the sheath 2;

[0070] S3, the upper support mechanism and the lower support mechanism work synchronously to make the four support rods 10 swing outward synchronously to open the corresponding ends of the sheath 2, and then the upper feed plate 8, the lower feed plate 9 and the long strip push frame 3 are synchronously translated toward the conveyor belt, so that the opened part of the sheath 2 is sleeved on the thermal protector 1;

[0071] S4, the upper supporting mechanism and the lower supporting mechanism act synchronously, so that the four supporting rods 10 are synchronously moved inward to the gap between the jacket 2 and the thermal protector 1, and then the upper feeding plate 8 and the lower feeding plate 9 are synchronously translated toward the conveyor belt, so that the four supporting rods 10 exit the jacket 2, and then the upper supporting mechanism and the lower supporting mechanism act synchronously, so that the four supporting rods 10 are moved inward to the outside of the jacket 2 to avoid the jacket 2;

[0072] S5, the long strip push frame 3 moves toward the direction approaching the conveyor belt, and the upper clamping block 11 and the lower clamping block 12 then move away from each other to release the thermal protector 1, so that the sheath 2 is completely mounted on the thermal protector 1.

[0073] Working principle: The conveyor belt is not shown in the figure. The conveyor belt includes two belts that clamp the leads of the thermal protector 1 in opposite directions. The two belts move synchronously to drive the thermal protector 1 forward. The conveyor belt transports the thermal protector 1 to the upper fixed platform 4 and the lower fixed platform 5 and then stops running, waiting for the sheath 2 to be set on the thermal protector 1 before continuing to move. After the thermal protector 1 moves to the upper fixed platform 4 and the lower fixed platform 5, the upper clamping block 11 and the lower clamping block 12 approach each other and clamp the thermal protector 1, so that the position of the thermal protector 1 is fixed, and at the same time the feeding platform 6 rises so that the outer limit frame 7 is flush with the thermal protector 1 (after the feeding platform 6 rises, the sheath 2 in the outer limit frame 7 is flush with the thermal protector 1). The sleeve 2 will be put on the thermal protector 1, and each time the feeding platform 6 descends, the new sleeve 2 will be fed into the outer limit frame 7 (the corresponding feeding device is not shown in the figure). Then the upper feed plate 8 and the lower feed plate 9 will synchronously move in a direction away from the conveyor belt, driving the support rods 10 in the upper support mechanism and the lower support mechanism to enter the sleeve 2. At the same time, the long push frame 3 moves in a direction close to the conveyor belt. After the long push frame 3 moves in a direction, it enters the outer limit frame 7 and presses against the sleeve 2, and makes the corresponding ends of the sleeve 2 press against the four support rods 10. The two support rods 10 of the upper support mechanism and the lower support mechanism are then synchronously opened in the opposite direction, so that the corresponding ends of the sleeve 2 are properly pulled outward (that is, as shown in FIG. Fig.10As shown in the state), the subsequent jacket 2 can be put on the thermal protector 1, and then the long push frame 3, the upper feed plate 8 and the lower feed plate 9 are synchronously close to the conveyor belt, so that the jacket 2 is close to the thermal protector 1 and then put on the thermal protector 1. After the corresponding end of the jacket 2 is put on the thermal protector 1, the two support rods 10 of the upper support mechanism and the lower support mechanism are synchronously close to each other until the four support rods 10 are moved to the gap between the jacket 2 and the thermal protector 1 (that is, as shown in the state shown in the state), so as to ensure that the subsequent jacket 2 can be put on the thermal protector 1, and then the long push frame 3, the upper feed plate 8 and the lower feed plate 9 are synchronously close to the conveyor belt, so that the jacket 2 is close to the thermal protector 1 and then put on the thermal protector 1. After the corresponding end of the jacket 2 is put on the thermal protector 1, the two support rods 10 of the upper support mechanism and the lower support mechanism are synchronously close to each other until the four support rods 10 are moved to the gap between the jacket 2 and the thermal protector 1 (that is, as shown in the state shown in the state shown in the state), Fig.11 As shown in the state), the upper feed plate 8 and the lower feed plate 9 continue to synchronously approach the conveyor belt, so that the four support rods 10 exit the sheath 2. After the four support rods 10 exit the sheath 2, the two support rods 10 of the upper support mechanism and the lower support mechanism continue to synchronously approach each other until the four support rods 10 move to the outside of the entire sheath 2 (i.e., as shown in the state shown in the state), the upper feed plate 8 and the lower feed plate 9 continue to synchronously approach the conveyor belt, so that the four support rods 10 exit the sheath 2. Fig.12 The state shown in the figure ensures that the subsequent sleeve 2 will not conflict with the support rod 10 during its movement toward the conveyor belt. Then, the upper feed plate 8 and the lower feed plate 9 will synchronously move away from the conveyor belt and reset to their initial positions, and the long push frame 3 will continue to move toward the conveyor belt, so that the sleeve 2 is completely inserted into the thermal protector 1. The upper clamping block 11 and the lower clamping block 12 are released in time before the sleeve 2 approaches. Then, the long push frame 3 moves away from the conveyor belt and resets to its initial position. The upper clamping block 11, the lower clamping block 12 and the feeding platform 6 are all reset to their initial positions, waiting to set the sleeve 2 on the next thermal protector 1.

[0074] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A fully automatic packaging device for thermal protectors, comprising a conveyor belt for conveying a plurality of thermal protectors (1) and a long push frame (3) for pushing a sheath (2), characterized in that: Also includes: An upper fixed platform (4) and a lower fixed platform (5) are fixedly arranged horizontally up and down beside the conveyor belt; A feeding platform (6) capable of vertically ascending and descending on a lower fixed platform (5), with an outer limit frame (7) fixedly provided on the top for placing the sheath (2); An upper feed plate (8) and a lower feed plate (9) capable of approaching and moving away from the conveyor belt are respectively slidably arranged on the upper fixed platform (4) and the feeding platform (6) in a horizontal direction; An upper support mechanism and a lower support mechanism are respectively fixedly arranged on the upper feed plate (8) and the lower feed plate (9), the two having the same structure, and the upper support mechanism comprises two support rods (10) capable of swinging outward in opposite directions on the upper feed plate (8) to open the protective sleeve (2); An upper clamping block (11) and a lower clamping block (12) capable of vertically ascending and descending on an upper fixing platform (4) and a lower fixing platform (5), respectively, and capable of clamping and fixing the thermal protector (1) when the two are brought close to each other; The upper support mechanism further comprises two rotating rods (19) symmetrically arranged at the lower end of the upper feed plate (8), two second transverse shafts (20) symmetrically arranged at the lower end of the upper feed plate (8), two gears (21) respectively coaxially fixedly connected to the two second transverse shafts (20), and a mini motor (22) fixedly arranged on the upper feed plate (8), one end of each rotating rod (19) is integrally formed with a first transverse shaft (23) axially connected to the upper feed plate (8), two support rods (10) are respectively fixedly arranged at the free ends of the two rotating rods (19), the two first transverse shafts (23) are respectively transmission-connected to the two second transverse shafts (20), and the two gears (21) are meshed with each other, and the output shaft of the mini motor (22) is transmission-connected to one of the second transverse shafts (20); The mini motor (22) is fixedly mounted on the upper feed plate (8) via a third bracket (24); the output shaft of the mini motor (22) is connected to the corresponding second transverse axis (20) via a belt transmission; and the second transverse axis (20) on each side is connected to the corresponding first transverse axis (23) via a belt transmission; The outer limit frame (7) is fixedly arranged on the top of the feeding platform (6) in a horizontal state, and four evenly distributed limit vertical shafts (25) are fixedly connected to the feeding platform (6), and the lower ends of the four limit vertical shafts (25) are slidably arranged on the lower fixed platform (5), and a third micro electric push rod (26) with an output end facing vertically upward is also fixedly arranged on the lower fixed platform (5), and a fourth bracket (27) is also fixedly arranged at the bottom of the feeding platform (6), and the output end of the third micro electric push rod (26) is fixedly connected to the fourth bracket (27); A fourth micro electric push rod (28) and a fifth micro electric push rod (29) are fixedly arranged on the upper fixed platform (4) and the lower fixed platform (5), respectively, and the output end of the fourth micro electric push rod (28) is vertically downward, and the output end of the fifth micro electric push rod (29) is vertically upward, and the output ends of the fourth micro electric push rod (28) and the fifth micro electric push rod (29) are fixedly connected to the upper clamping block (11) and the lower clamping block (12), respectively.

2. A fully automatic packaging device for thermal protectors according to claim 1, characterized in that: The upper fixed platform (4) and the feeding platform (6) are respectively fixedly provided with a first bracket (13) and a second bracket (14); the upper feeding plate (8) and the lower feeding plate (9) are respectively fixedly provided with two first optical axes (15) and two second optical axes (16) in a horizontal state; the two first optical axes (15) are slidably provided on the first bracket (13); the two second optical axes (16) are slidably provided on the second bracket (14); and the first bracket (13) and the second bracket (14) are respectively fixedly provided with a first micro electric push rod (17) and a second micro electric push rod (18); the output ends of the first micro electric push rod (17) and the second micro electric push rod (18) are both directed toward the conveyor belt in a horizontal direction; and the output ends of the first micro electric push rod (17) and the second micro electric push rod (18) are respectively fixedly connected to the upper feeding plate (8) and the lower feeding plate (9).

3. A fully automatic packaging device for thermal protectors according to claim 1, characterized in that: Buffer rubber pads (30) for protecting the thermal protector (1) are fixedly provided at the facing ends of the upper clamping block (11) and the lower clamping block (12).

4. A method for using the fully automatic packaging device for thermal protectors as claimed in claim 1, characterized in that: The method comprises the following steps: S1, the upper clamping block (11) and the lower clamping block (12) move away from each other, the feeding platform (6) drops to the lowest position, the long strip push frame (3) retreats to the extreme position away from the conveyor belt, and the upper feed plate (8) and the lower feed plate (9) are synchronously translated in the direction away from the conveyor belt, so that the upper support rod (10) of the lower feed plate (9) is close to the outer limit frame (7); S2, the conveyor belt conveys the thermal protector (1) to the upper fixed platform (4) and the lower fixed platform (5), the upper clamping block (11) and the lower clamping block (12) approach each other to clamp the thermal protector (1), the feeding platform (6) rises so that the sheath (2) in the outer limit frame (7) is flush with the thermal protector (1), and then the long push frame (3) moves horizontally toward the conveyor belt to press against the corresponding end of the conveyor belt, and the upper feed plate (8) and the lower feed plate (9) then move horizontally away from the conveyor belt, so that the four support rods (10) retract into the sheath (2); S3, the upper support mechanism and the lower support mechanism act synchronously to cause the four support rods (10) to swing outward synchronously to open the corresponding ends of the jacket (2), and then the upper feed plate (8), the lower feed plate (9) and the long strip push frame (3) are synchronously translated toward the conveyor belt, so that the opened part of the jacket (2) is sleeved on the thermal protector (1); S4, the upper supporting mechanism and the lower supporting mechanism act synchronously, so that the four supporting rods (10) are synchronously moved inward to the gap between the jacket (2) and the thermal protector (1), and then the upper feeding plate (8) and the lower feeding plate (9) are synchronously translated toward the conveyor belt, so that the four supporting rods (10) exit the jacket (2), and then the upper supporting mechanism and the lower supporting mechanism act synchronously, so that the four supporting rods (10) are moved inward to the outside of the jacket (2) to avoid the jacket (2); S5, the long push frame (3) moves towards the direction approaching the conveyor belt, and the upper clamping block (11) and the lower clamping block (12) then move away from each other to release the thermal protector (1), so that the sheath (2) is completely sheathed on the thermal protector (1).

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