Automatic double-end glue sealing equipment for PTC (Positive Temperature Coefficient) electric heater

Abstract

The invention relates to the technical field of glue sealing equipment, and discloses automatic double-end glue sealing equipment for a PTC (Positive Temperature Coefficient) electric heater, which solves the problem that the working efficiency is influenced by manual glue sealing in the prior art, and comprises a combined type support frame, a release type die sleeve feeding mechanism is fixedly arranged at one end of the combined type support frame; an auxiliary limiting assembly is fixedly arranged at one end of the top of the release die sleeve feeding mechanism, a controller is fixedly arranged at the top of the end, close to the release die sleeve feeding mechanism, of the combined type supporting frame, and a PTC heater feeding conveying belt is arranged on the side edge of one end of the top of the combined type supporting frame. A PTC heater discharging conveying belt is arranged on the side edge of the other end of the top of the combined type supporting frame, a PTC heater position adjusting mechanism is fixedly arranged in the middle of one side of the top end of the combined type supporting frame, and a silicon rubber pouring mechanism is fixedly arranged at the end, away from the controller, of the combined type supporting frame. By means of the glue sealing equipment, automatic glue sealing operation can be achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of glue sealing equipment, in particular to an automatic double-end glue sealing equipment for a PTC electric heater. Background Art

[0002] The PTC heater has a constant temperature heating characteristic. The principle is that after the PTC heater is powered on, the self-heating temperature rises and the resistance value increases and enters the transition zone. The surface temperature of the PTC heater will remain constant. This temperature is only related to the Curie temperature of the PTC heater and the applied voltage, and has basically nothing to do with the ambient temperature.

[0003] PTC electric heaters usually have a multi-layer structure. During the production and processing of PTC electric heaters, they usually need to be sealed with glue at both ends. Silicone rubber is generally used for sealing. The sealing process can achieve solder joint protection and insulation protection. At the same time, it has high heat resistance to avoid large amounts of heat being transferred to the outer frame. At present, the sealing operation of PTC electric heaters still needs to be performed manually, and there is no need to realize automated operation, which affects the processing efficiency. Therefore, the present application proposes an automated double-end sealing device for PTC electric heaters. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an automatic double-end sealing device for a PTC electric heater, which effectively solves the problem of affecting work efficiency by manual sealing.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated double-end sealing device for a PTC electric heater, comprising a combined support frame, one end of the combined support frame is fixedly provided with a release mold sleeve feeding mechanism, one end of the top of the release mold sleeve feeding mechanism is fixedly provided with an auxiliary limit assembly, a controller is fixedly provided at the top of the combined support frame near one end of the release mold sleeve feeding mechanism, a PTC heater feeding conveyor belt is provided on the side of one end of the top of the combined support frame, a PTC heater discharging conveyor belt is provided on the side of the other end of the top of the combined support frame, a PTC heater position adjustment mechanism is fixedly provided at the middle position of one side of the top of the combined support frame, and a silicone rubber casting mechanism is fixedly provided at one end of the combined support frame away from the controller;

[0006] Among them, the release mold sleeve feeding mechanism is composed of an L-shaped support frame, a release mold sleeve conveyor belt, a release mold sleeve storage bin, a plurality of release mold sleeves one, a plurality of release mold sleeves two, a cylinder one and a feeding push plate. The release mold sleeve conveyor belt is connected to one end inside the L-shaped support frame, the release mold sleeve storage bin is fixedly connected to the other end of the top of the L-shaped support frame, the release mold sleeve one and the release mold sleeve two are both located inside the release mold sleeve storage bin, the cylinder one is fixedly connected to the bottom end of one side of the release mold sleeve storage bin, and the feeding push plate is slidably inserted into the release mold sleeve storage bin and is fixedly connected to the cylinder one;

[0007] The auxiliary limiting assembly is composed of a limiting frame and an electric heating plate. The limiting frame is fixedly connected to one end of the top of the L-shaped support frame, and the electric heating plate is fixedly connected to the bottom end of the limiting frame.

[0008] The PTC heater position adjustment mechanism is composed of a support plate, a rotation drive assembly, a limit frame, a first clamping assembly and a second clamping assembly. The support plate is fixedly connected to the top of the combined support frame, the rotation drive assembly is connected to one side of the support plate, the limit frame is located on the other side of the support plate and is fixedly connected to the rotation drive assembly, and the first clamping assembly and the second clamping assembly are respectively connected to the two ends of the inner part of the limit frame;

[0009] The rotary drive assembly is composed of a servo motor, a worm, a worm wheel and a rotating shaft. The servo motor is fixedly connected to the side of the supporting vertical plate, the worm is fixedly connected to the output shaft of the servo motor, the rotating shaft is inserted into the supporting vertical plate and is rotatably connected thereto, the worm wheel is fixedly connected to one end of the rotating shaft and meshed with the worm, and the limit frame is fixedly connected to the other end of the rotating shaft;

[0010] The first clamping assembly and the second clamping assembly are both composed of cylinder 2, a shell, servo motor 2, a double-groove pulley, a first rotating wheel, a single-groove pulley 1, a second rotating wheel, a single-groove pulley 2 and two belts. Cylinder 2 is inserted into the limit frame and fixedly connected to the limit frame, the shell is fixedly connected to one end of cylinder 2, servo motor 2 is fixedly connected to the inside of the shell, the double-groove pulley is fixedly connected to the output shaft of servo motor 2, the first rotating wheel and the second rotating wheel are respectively rotatably connected to the two ends of one side of the inside of the shell, the single-groove pulley 1 and the single-groove pulley 2 are respectively fixedly connected to the first rotating wheel and the second rotating wheel, and the belt is connected between the double-groove pulley and the single-groove pulley 1 and the single-groove pulley 2.

[0011] Preferably, the release mold sleeve one and the release mold sleeve two are alternately stacked and placed inside a release mold sleeve storage bin, and both the release mold sleeve one and the release mold sleeve two are frame structures formed by splicing release papers.

[0012] Preferably, the outer dimensions of the release mold sleeve 1 and the release mold sleeve 2 are the same as the inner dimensions of the limiting frame.

[0013] Preferably, a plurality of strip-shaped through grooves are formed at the bottom end of the release mold sleeve 1, and rectangular grooves matching the strip-shaped through grooves are formed on the limiting frame and the electric heating plate.

[0014] Preferably, placement grooves are provided on both sides of the release mold sleeve storage bin.

[0015] Preferably, the cylinder 1 is fixedly connected to the L-shaped support frame via a U-shaped mounting frame.

[0016] Preferably, the bottom ends of both sides of the release mold sleeve storage bin are provided with inlet and outlet slots matching the release mold sleeve 1, the release mold sleeve 2 and the feeding push plate.

[0017] Preferably, both the first rotating wheel and the second rotating wheel are provided with rubber anti-slip rings.

[0018] Preferably, the servo motor 1 and the worm are both connected to the supporting vertical plate through a mounting sleeve.

[0019] Preferably, the silicone rubber pouring mechanism consists of a silicone rubber storage tank, a feeding pump, a hose, an L-shaped pouring pipe, a support block and a cylinder three. The feeding pump is fixedly connected to the top of the silicone rubber storage tank, the L-shaped pouring pipe is connected to the feeding pump through a hose, the support block is fixedly connected to the L-shaped pouring pipe and the cylinder three, and the cylinder three is inserted into the combined support frame and fixedly connected thereto.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) During operation, a release mold sleeve feeding mechanism consisting of an L-shaped support frame, a release mold sleeve conveyor belt, a release mold sleeve storage bin, a plurality of release mold sleeves 1, a plurality of release mold sleeves 2, a cylinder 1 and a feeding push plate is provided, so that two release mold sleeves can be fed alternately, and the release mold sleeve can assist in the sealing operation. When the silicone rubber is cured by heat, the release mold sleeve can be separated easily, thereby improving the convenience and efficiency of the sealing;

[0022] (2) By providing an auxiliary limiting assembly consisting of a limiting frame and an electric heating plate, the release mold sleeve 1 and the release mold sleeve 2 can be limited and supported, which facilitates the connection between the release mold sleeve 1 and the release mold sleeve 2 and the two ends of the PTC electric heater. At the same time, the release mold sleeve 1 and the release mold sleeve 2 can be heated, thereby allowing the silicone rubber to be cured by heat;

[0023] (3) By setting a PTC heater position adjustment mechanism consisting of a support plate, a rotation drive assembly, a limit frame, a first clamping assembly and a second clamping assembly, the PTC heater can be adjusted in lateral movement, rotation and multi-angle lifting and lowering, so that the PTC heater can be docked with the release mold sleeve 1 and the release mold sleeve 2, which is convenient for the sealing operation;

[0024] (4) By setting up a silicone rubber pouring mechanism consisting of a silicone rubber storage tank, a feeding pump, a hose, an L-shaped pouring pipe, a support block and a cylinder, the silicone rubber can be poured into the interior of the release mold sleeve 1 and the release mold sleeve 2, so that the silicone rubber covers the two ends of the PTC heater, thereby realizing the sealing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0026] In the attached picture:

[0027] Figure 1 This is one of the structural schematic diagrams of the automatic double-end glue sealing equipment for PTC electric heaters of the present invention;

[0028] Figure 2 This is the second structural schematic diagram of the automatic double-end glue sealing equipment for PTC electric heaters of the present invention;

[0029] Figure 3 This is a flow chart of sealing glue for a PTC electric heater according to the present invention;

[0030] Figure 4 This is one of the structural schematic diagrams of the PTC heater position adjustment mechanism of the present invention;

[0031] Figure 5 This is the second structural schematic diagram of the position adjustment mechanism of the PTC heater of the present invention;

[0032] Figure 6 It is a schematic diagram of the connection structure between the first clamping assembly and the second clamping assembly and the limiting frame of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the release mold sleeve feeding mechanism of the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the auxiliary limiting assembly, the first release mold sleeve and the second release mold sleeve of the present invention;

[0035] Fig. 9 This is a schematic diagram of the structure of the silicone rubber casting mechanism of the present invention;

[0036] In the figure: 1. Combined support frame; 2. Release mold sleeve feeding mechanism; 3. Auxiliary limit assembly; 4. Controller; 5. PTC heater feeding conveyor belt; 6. PTC heater discharging conveyor belt; 7. PTC heater position adjustment mechanism; 8. Silicone rubber casting mechanism; 9. L-shaped support frame; 10. Release mold sleeve conveyor belt; 11. Release mold sleeve storage bin; 12. Release mold sleeve 1; 13. Release mold sleeve 2; 14. Cylinder 1; 15. Feeding push plate; 16. Limit frame; 17. Electric heating plate; 18. Support vertical plate; 19. Rotary drive assembly; 20. Limit frame; 21. First clamping assembly; 22. The second clamping assembly; 23. servo motor one; 24. worm; 25. worm wheel; 26. rotating shaft; 27. cylinder two; 28. housing; 29. ​​servo motor two; 30. double-groove pulley; 31. first rotating wheel; 32. single-groove pulley one; 33. second rotating wheel; 34. single-groove pulley two; 35. belt; 36. strip through groove; 37. rectangular groove; 38. placement groove; 39. U-shaped mounting frame; 40. inlet and outlet slot; 41. rubber anti-skid ring; 42. mounting sleeve; 43. silicone rubber storage tank; 44. feeding pump; 45. hose; 46. L-shaped pouring pipe; 47. support block; 48. cylinder three. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Embodiment 1, by Figures 1 to 8 The present invention provides an automated double-end sealing device for a PTC electric heater, comprising a combined support frame 1, a release mold sleeve feeding mechanism 2 is fixedly provided at one end of the combined support frame 1, an auxiliary limit assembly 3 is fixedly provided at one end of the top of the release mold sleeve feeding mechanism 2, a controller 4 is fixedly provided at the top of the combined support frame 1 close to one end of the release mold sleeve feeding mechanism 2, a PTC heater feeding conveyor belt 5 is provided on the side of one end of the top of the combined support frame 1, a PTC heater discharging conveyor belt 6 is provided on the side of the other end of the top of the combined support frame 1, a PTC heater position adjustment mechanism 7 is fixedly provided at the middle position of one side of the top of the combined support frame 1, and a silicone rubber casting mechanism 8 is fixedly provided at one end of the combined support frame 1 away from the controller 4;

[0039] During operation, the release mold sleeve is fed through the release mold sleeve feeding mechanism 2, and the release mold sleeve enters into the interior of the auxiliary limiting component 3. The PTC heater feeding conveyor belt 5 feeds the PTC heater, so that the PTC heater enters into the interior of the PTC heater position adjustment mechanism 7. First, the PTC heater is driven to rotate 90 degrees through the PTC heater position adjustment mechanism 7, so that the PTC heater is in a vertical state, and then the PTC heater is driven to move downward through the PTC heater position adjustment mechanism 7, so that one end of the PTC heater is close to the release mold sleeve, and then the silicone rubber is poured through the silicone rubber pouring mechanism 8, and the auxiliary limiting component 3 is heated, and the silicone rubber is cured by heat. When the glue sealing of one end of the PTC heater is completed, the PTC heater is rotated 180 degrees, and then the other end of the PTC heater is sealed. After all the glue sealing is completed, the PTC heater can be discharged through the PTC heater discharge conveyor belt 6;

[0040] Among them, the release mold sleeve feeding mechanism 2 is composed of an L-shaped support frame 9, a release mold sleeve conveyor belt 10, a release mold sleeve storage bin 11, a plurality of release mold sleeves 12, a plurality of release mold sleeves 2 13, a cylinder 14 and a feeding push plate 15. The release mold sleeve conveyor belt 10 is connected to one end inside the L-shaped support frame 9, the release mold sleeve storage bin 11 is fixedly connected to the other end of the top of the L-shaped support frame 9, the release mold sleeve 12 and the release mold sleeve 2 13 are both located inside the release mold sleeve storage bin 11, the cylinder 14 is fixedly connected to the bottom end of one side of the release mold sleeve storage bin 11, and the feeding push plate 15 is slidably inserted into the release mold sleeve storage bin 11 and is fixedly connected to the cylinder 14;

[0041] The release mold sleeve 1 12 and the release mold sleeve 2 13 are alternately stacked and placed inside the release mold sleeve storage bin 11, and the cylinder 1 14 drives the feeding push plate 15 to reciprocate, and the release mold sleeve 1 12 and the release mold sleeve 2 13 are alternately discharged through the feeding push plate 15, so that the release mold sleeve 1 12 and the release mold sleeve 2 13 are alternately moved to the top of the release mold sleeve conveyor belt 10, and the release mold sleeve 1 12 and the release mold sleeve 2 13 are alternately moved to the inside of the auxiliary limit assembly 3 through the release mold sleeve conveyor belt 10;

[0042] The auxiliary limiting assembly 3 is composed of a limiting frame 16 and an electric heating plate 17. The limiting frame 16 is fixedly connected to one end of the top of the L-shaped support frame 9, and the electric heating plate 17 is fixedly connected to the bottom end of the limiting frame 16.

[0043] The limiting frame 16 supports and limits the release mold sleeve 12 and the release mold sleeve 2 13, thereby improving the position accuracy of the release mold sleeve 12 and the release mold sleeve 2 13. The electric heating plate 17 can heat the release mold sleeve 12 and the release mold sleeve 2 13, thereby heating the silicone rubber poured inside the release mold sleeve 12 and the release mold sleeve 2 13, so that the silicone rubber is cured by heat.

[0044] The PTC heater position adjustment mechanism 7 is composed of a support plate 18, a rotation drive assembly 19, a limit frame 20, a first clamping assembly 21 and a second clamping assembly 22. The support plate 18 is fixedly connected to the top of the combined support frame 1, the rotation drive assembly 19 is connected to one side of the support plate 18, the limit frame 20 is located on the other side of the support plate 18 and is fixedly connected to the rotation drive assembly 19, and the first clamping assembly 21 and the second clamping assembly 22 are respectively connected to the two ends inside the limit frame 20;

[0045] The rotary drive assembly 19 can drive the limit frame 20 to rotate, thereby driving the first clamping assembly 21 and the second clamping assembly 22 to rotate, and the first clamping assembly 21 and the second clamping assembly 22 can drive the PTC heater to move and adjust at multiple angles, so that the PTC heater can be transported and docked with the release mold sleeve 1 12 and the release mold sleeve 2 13;

[0046] The rotary drive assembly 19 is composed of a servo motor 23, a worm 24, a worm gear 25 and a rotating shaft 26. The servo motor 23 is fixedly connected to the side of the supporting upright plate 18, the worm 24 is fixedly connected to the output shaft of the servo motor 23, the rotating shaft 26 is inserted into the supporting upright plate 18 and is rotatably connected thereto, the worm gear 25 is fixedly connected to one end of the rotating shaft 26 and meshedly connected to the worm 24, and the limiting frame 20 is fixedly connected to the other end of the rotating shaft 26;

[0047] The servo motor 1 23 drives the worm 24 to rotate, the worm 24 drives the worm wheel 25 to rotate, the worm wheel 25 drives the rotating shaft 26 to rotate, and the rotating shaft 26 drives the limiting frame 20 to rotate;

[0048] The first clamping assembly 21 and the second clamping assembly 22 are both composed of a cylinder 27, a housing 28, a servo motor 29, a double-groove pulley 30, a first rotating wheel 31, a single-groove pulley 1 32, a second rotating wheel 33, a single-groove pulley 2 34 and two belts 35. The cylinder 27 is inserted into the limiting frame 20 and fixedly connected thereto. The housing 28 is fixedly connected to one end of the cylinder 27. The servo motor 29 is fixedly connected to the inside of the housing 28. The double-groove pulley 30 is fixedly connected to the output shaft of the servo motor 29. The first rotating wheel 31 and the second rotating wheel 33 are rotatably connected to the two ends of one side of the inside of the housing 28 respectively. The single-groove pulley 1 32 and the single-groove pulley 2 34 are fixedly connected to the first rotating wheel 31 and the second rotating wheel 33 respectively. The belt 35 is connected between the double-groove pulley 30 and the single-groove pulley 1 32 and the single-groove pulley 2 34.

[0049] Cylinder 27 can drive the shell 28 to move, so as to adjust the distance between the first clamping component 21 and the second clamping component 22 to clamp the PTC heater. Servo motor 29, double-groove pulley 30, first rotary wheel 31, single-groove pulley 1 32, second rotary wheel 33, single-groove pulley 2 34 and two belts 35 can drive the PTC heater to move and adjust inside the first clamping component 21 and the second clamping component 22. By cooperating with the rotating drive component 19, multi-angle position adjustment can be achieved.

[0050] Embodiment 2, based on embodiment 1, Figures 1 to 9 It is given that the release mold sleeve 12 and the release mold sleeve 2 13 are alternately stacked and placed inside the release mold sleeve storage bin 11, and the release mold sleeve 12 and the release mold sleeve 2 13 are frame structures formed by splicing release paper, and the outer dimensions of the release mold sleeve 12 and the release mold sleeve 2 13 are the same as the inner dimensions of the limit frame 16, and the bottom end of the release mold sleeve 12 is provided with a plurality of strip through grooves 36, and the limit frame 16 and the electric heating plate 17 are provided with rectangular grooves 37 matching the strip through grooves 36, and both sides of the release mold sleeve storage bin 11 are provided with placement grooves 38, and the cylinder 14 is fixedly connected to the L-shaped support frame 9 through a U-shaped mounting frame 39, and the bottom ends of both sides of the release mold sleeve storage bin 11 are provided with inlet and outlet slots 40 matching the release mold sleeve 12, the release mold sleeve 2 13 and the feeding push plate 15;

[0051] The release mold sleeve 12 can be docked with the flat end of the PTC heater, the release mold sleeve 1 can be docked with the electrical connection end of the PTC heater, and the electrode plate on the PTC heater can be inserted into the strip through groove 36 and the rectangular groove 37, and a seal is formed at the same time, thereby preventing the silicone rubber from leaking through the strip through groove 36 and the rectangular groove 37. The outer dimensions of the release mold sleeve 12 and the release mold sleeve 13 are the same as the inner dimensions of the limit frame 16, so that accurate positioning can be achieved to avoid the release mold sleeve 12 and the release mold sleeve 13 being inaccurately positioned and affecting the docking effect with the PTC heater. The placement groove 38 can facilitate the staff to place the release mold sleeve 12 and the release mold sleeve 13 inside the release mold sleeve storage bin 11, and the inlet and outlet slots 40 can facilitate the discharge of the release mold sleeve 12 and the release mold sleeve 13;

[0052] The first rotating wheel 31 and the second rotating wheel 33 are both provided with a rubber anti-skid ring 41, and the servo motor 1 23 and the worm 24 are both connected to the supporting vertical plate 18 through a mounting sleeve 42;

[0053] The rubber anti-skid ring 41 can improve the stability of the connection between the first rotating wheel 31 and the second rotating wheel 33 and the PTC heater to prevent the PTC heater from slipping. The support plate 18 can support and limit the servo motor 23 and the worm 24 to improve stability.

[0054] The silicone rubber pouring mechanism 8 is composed of a silicone rubber storage tank 43, a feeding pump 44, a hose 45, an L-shaped pouring pipe 46, a support block 47 and a cylinder three 48. The feeding pump 44 is fixedly connected to the top of the silicone rubber storage tank 43, the L-shaped pouring pipe 46 is connected to the feeding pump 44 through the hose 45, the support block 47 is fixedly connected to the L-shaped pouring pipe 46 and the cylinder three 48, and the cylinder three 48 is inserted into the combined support frame 1 and fixedly connected thereto;

[0055] After the PTC heater is docked with the release mold sleeve 12 and the release mold sleeve 2 13, the silicone rubber is poured through the silicone rubber storage tank 43, the feeding pump 44, the hose 45 and the L-shaped pouring pipe 46, so that the silicone rubber enters the interior of the release mold sleeve 12 and the release mold sleeve 2 13 and covers the port position of the PTC heater, and then the silicone rubber is cured, and then the sealing operation is realized. The cylinder three 48 can drive the L-shaped pouring pipe 46 to move and adjust, so as to prevent the L-shaped pouring pipe 46 from affecting the movement of the PTC heater.

[0056] During operation, by setting up a release mold sleeve feeding mechanism consisting of an L-shaped support frame, a release mold sleeve conveyor belt, a release mold sleeve storage bin, a plurality of release mold sleeves one, a plurality of release mold sleeves two, a cylinder one and a feeding push plate, the two release mold sleeves can be fed alternately, and the release mold sleeve can assist in the sealing operation. When the silicone rubber is heated and cured, it is convenient to separate the release mold sleeve, thereby improving the convenience and efficiency of the sealing; by setting up an auxiliary limiting component consisting of a limiting frame and an electric heating plate, the release mold sleeve one and the release mold sleeve two can be limited and supported, which is convenient for connecting the release mold sleeve one and the release mold sleeve two with the two ends of the PTC electric heater, and at the same time, the release mold sleeve one and the release mold sleeve two can be heated, thereby The silicone rubber can be cured by heat; by setting a PTC heater position adjustment mechanism composed of a supporting vertical plate, a rotating drive component, a limiting frame, a first clamping component and a second clamping component, the PTC heater can be adjusted in lateral movement, rotation and multi-angle lifting and lowering, so that the PTC heater can be docked with the release mold sleeve one and the release mold sleeve two, which is convenient for the sealing operation; by setting a silicone rubber pouring mechanism composed of a silicone rubber storage tank, a feeding pump, a hose, an L-shaped pouring pipe, a support block and a cylinder three, the silicone rubber can be poured into the interior of the release mold sleeve one and the release mold sleeve two, so that the silicone rubber covers the two ends of the PTC heater, thereby realizing the sealing operation.

Claims

1. An automated double-end glue sealing device for a PTC electric heater, comprising a combined support frame (1), characterized in that: A release mold sleeve feeding mechanism (2) is fixedly provided at one end of the combined support frame (1), an auxiliary limit assembly (3) is fixedly provided at one end of the top of the release mold sleeve feeding mechanism (2), a controller (4) is fixedly provided at the top of the combined support frame (1) close to one end of the release mold sleeve feeding mechanism (2), a PTC heater feeding conveyor belt (5) is provided on the side of one end of the top of the combined support frame (1), a PTC heater discharging conveyor belt (6) is provided on the side of the other end of the top of the combined support frame (1), a PTC heater position adjustment mechanism (7) is fixedly provided at the middle position of one side of the top of the combined support frame (1), and a silicone rubber casting mechanism (8) is fixedly provided at one end of the combined support frame (1) away from the controller (4); The release mold sleeve feeding mechanism (2) is composed of an L-shaped support frame (9), a release mold sleeve conveyor belt (10), a release mold sleeve storage bin (11), a plurality of release mold sleeves (12), a plurality of release mold sleeves (13), a cylinder (14) and a feeding push plate (15); the release mold sleeve conveyor belt (10) is connected to one end inside the L-shaped support frame (9); the release mold sleeve storage bin (11) is fixedly connected to the other end of the top of the L-shaped support frame (9); the release mold sleeve (12) and the release mold sleeve (13) are both located inside the release mold sleeve storage bin (11); the cylinder (14) is fixedly connected to the bottom end of one side of the release mold sleeve storage bin (11); and the feeding push plate (15) is slidably inserted into the release mold sleeve storage bin (11) and is fixedly connected to the cylinder (14); The auxiliary limiting assembly (3) is composed of a limiting frame (16) and an electric heating plate (17), wherein the limiting frame (16) is fixedly connected to one end of the top of the L-shaped support frame (9), and the electric heating plate (17) is fixedly connected to the bottom end inside the limiting frame (16); The PTC heater position adjustment mechanism (7) is composed of a support plate (18), a rotation drive assembly (19), a limit frame (20), a first clamping assembly (21) and a second clamping assembly (22); the support plate (18) is fixedly connected to the top of the combined support frame (1); the rotation drive assembly (19) is connected to one side of the support plate (18); the limit frame (20) is located on the other side of the support plate (18) and is fixedly connected to the rotation drive assembly (19); the first clamping assembly (21) and the second clamping assembly (22) are respectively connected to the two ends inside the limit frame (20); The rotary drive assembly (19) is composed of a servo motor (23), a worm (24), a worm wheel (25) and a rotating shaft (26); the servo motor (23) is fixedly connected to the side of the supporting vertical plate (18); the worm (24) is fixedly connected to the output shaft of the servo motor (23); the rotating shaft (26) is inserted into the supporting vertical plate (18) and is rotatably connected thereto; the worm wheel (25) is fixedly connected to one end of the rotating shaft (26) and meshes with the worm (24); and the limiting frame (20) is fixedly connected to the other end of the rotating shaft (26); The first clamping assembly (21) and the second clamping assembly (22) are both composed of a second cylinder (27), a housing (28), a second servo motor (29), a double-groove pulley (30), a first rotating wheel (31), a first single-groove pulley (32), a second rotating wheel (33), a second single-groove pulley (34) and two belts (35). The second cylinder (27) is inserted into the limiting frame (20) and is fixedly connected thereto. The housing (28) is fixedly connected to one end of the second cylinder (27). The second servo motor (29) is fixedly connected to the first end of the second cylinder (27). The double groove pulley (30) is connected to the inside of the housing (28), and is fixedly connected to the output shaft of the servo motor 2 (29). The first rotating wheel (31) and the second rotating wheel (33) are respectively rotatably connected to the two ends of one side of the inside of the housing (28). The single groove pulley 1 (32) and the single groove pulley 2 (34) are respectively fixedly connected to the first rotating wheel (31) and the second rotating wheel (33). The belt (35) is connected between the double groove pulley (30) and the single groove pulley 1 (32) and the single groove pulley 2 (34).

2. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: The release mold sleeve 1 (12) and the release mold sleeve 2 (13) are alternately stacked and placed inside the release mold sleeve storage bin (11); the release mold sleeve 1 (12) and the release mold sleeve 2 (13) are both frame structures formed by splicing release paper.

3. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: The outer dimensions of the release mold sleeve 1 (12) and the release mold sleeve 2 (13) are the same as the inner dimensions of the limiting frame (16).

4. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: The bottom end of the release mold sleeve (12) is provided with a plurality of strip-shaped through grooves (36), and the limiting frame (16) and the electric heating plate (17) are both provided with rectangular grooves (37) matching the strip-shaped through grooves (36).

5. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: Both sides of the release mold sleeve storage bin (11) are provided with placement grooves (38).

6. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: The cylinder 1 (14) is fixedly connected to the L-shaped support frame (9) via a U-shaped mounting frame (39).

7. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: The bottom ends of both sides of the release mold sleeve storage bin (11) are provided with inlet and outlet slots (40) matching the release mold sleeve 1 (12), the release mold sleeve 2 (13) and the feeding push plate (15).

8. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: The first rotating wheel (31) and the second rotating wheel (33) are both provided with a rubber anti-slip ring (41).

9. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: The servo motor 1 (23) and the worm (24) are both connected to the supporting vertical plate (18) via a mounting sleeve (42).

10. The automatic double-end sealing device for PTC electric heater according to claim 1, characterized in that: The silicone rubber pouring mechanism (8) is composed of a silicone rubber storage tank (43), a feeding pump (44), a hose (45), an L-shaped pouring pipe (46), a support block (47) and a cylinder three (48). The feeding pump (44) is fixedly connected to the top of the silicone rubber storage tank (43), the L-shaped pouring pipe (46) is connected to the feeding pump (44) through the hose (45), the support block (47) is fixedly connected to the L-shaped pouring pipe (46) and the cylinder three (48), and the cylinder three (48) is inserted into the combined support frame (1) and fixedly connected thereto.

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