Film sticking mechanism and automatic film sticking machine for PTC (Positive Temperature Coefficient) heating core

Abstract

The utility model discloses a film sticking mechanism and an automatic film sticking machine for a PTC (Positive Temperature Coefficient) heating core, which have the characteristic of automatically and accurately sticking an insulating film on two side surfaces of a PTC element and are high in production efficiency. The film pasting mechanism comprises a film pasting positioning device and a film pasting finished product push-out device, the film pasting finished product push-out device is arranged below the film pasting positioning device, the film pasting positioning device comprises two positioning suction blocks which are oppositely arranged and used for tightly sucking an insulating film horizontally placed on the film pasting positioning device, and a penetrating channel for a PTC element to vertically penetrate through is arranged between the two positioning suction blocks. The film pasting finished product push-out device clamps the PTC element penetrating into the penetrating channel and moves downwards, so that the PTC element moving downwards is punched and folded to be placed on the insulating film of the positioning suction block, and the insulating film is attached to the two side faces of the PTC element.

Description

Technical Field

[0001] The utility model relates to the field of PTC heater production equipment, in particular to a film pasting mechanism and an automatic film pasting machine for a PTC heating core. Background Art

[0002] The PTC heating core is the heating component of the PTC heater. The PTC heater is mainly composed of two parts, namely the heating element and the PTC heating core. The heating element includes an aluminum tube and a heat dissipation aluminum sheet with a corrugated structure and positioned on the upper and lower surfaces of the length direction of the aluminum tube. The PTC heating core is accommodated in the tube cavity of the aluminum tube of the heating element, including a plurality of neatly arranged PTC elements with electrode layers on both sides of the surface by vacuum sputtering or other similar methods, and an electrode sheet each arranged on both sides of the PTC element in electrical contact with the electrode layer. At least one end of the electrode sheet protrudes out of the tube cavity of the aforementioned aluminum tube and is electrically connected to an external power controller by a circuit. Under the control of the power controller, for example, when the electrode sheet is energized, the PTC element generates heat and transfers the heat to the aluminum tube of the heating element, and the aluminum tube dissipates the heat through the heat dissipation aluminum sheet.

[0003] In the prior art, the work of assembling the PTC heating core is usually done manually. The specific process is: first lay an insulating film on the workbench, then place an electrode sheet on the insulating film, and then place the PTC element on the aforementioned electrode sheet in a neatly arranged state, and then place another electrode sheet on the upper part of the PTC element, so that the two electrode sheets are respectively located above and below the PTC element, and finally fold the insulating film, that is, the insulating film wraps the PTC element and the two electrode sheets in an overall state. When the PTC heating core is accommodated in the aluminum tube, the insulating film plays the role of insulating and isolating the PTC heating core from the aluminum tube wall. However, the above-mentioned production method has major production disadvantages, including high labor intensity for workers, relatively low production efficiency, difficulty in ensuring positioning, and troublesome feeding. Utility Model Content

[0004] The utility model aims to provide a film sticking mechanism which can automatically and accurately stick an insulating film to two side surfaces of a PTC element.

[0005] Another object of the utility model is to provide an automatic film sticking machine for a PTC heating core, which can automatically and accurately stick an insulating film to two side surfaces of a PTC element.

[0006] To achieve the above-mentioned purpose, the utility model provides a film sticking mechanism, which includes a film sticking positioning device and a film sticking finished product pushing device. The film sticking finished product pushing device is arranged below the film sticking positioning device. The film sticking positioning device includes two positioning suction blocks which are arranged opposite to each other and are used to suck the insulating film placed flat thereon. A through channel is provided between the two positioning suction blocks for the PTC element to vertically pass through. The film sticking finished product pushing device clamps the PTC element that passes through the through channel and moves downward, so that the PTC element that moves downward is folded onto the insulating film placed on the positioning suction blocks, so that the insulating film is attached to the two side surfaces of the PTC element.

[0007] Preferably, three sides of the top of the positioning suction block are formed with ribs, the ribs enclose a placement space for the insulating film, and a plurality of suction holes are opened on the top of the positioning suction block.

[0008] Preferably, the film positioning device also includes a fixed roller and a movable roller arranged between the two positioning suction blocks. The movable roller is coaxially arranged with the fixed roller and a passing channel is enclosed therebetween. The movable roller can be moved away from or close to the fixed roller so that the passing channel has an adjustable width.

[0009] Preferably, the film positioning device also includes a seat block and a sliding block slidably mounted on the seat block, one of the two positioning suction blocks is mounted on the sliding block, the other of the two positioning suction blocks is mounted on the seat block, the fixed roller is mounted on the seat block, and the movable roller is mounted on the sliding block.

[0010] Preferably, the seat block is provided with a lifting outlet on a side away from the sliding block, and a material incoming sensor is installed on the seat block and is aligned with the lifting outlet. The finished film-attached product ejecting device clamps the film-attached PTC element and ejects it upward out of the lifting outlet.

[0011] Preferably, the film sticking mechanism of the present invention further comprises an adjusting rod, which is passed through the seat block and connected to the sliding block, and the sliding block is slidably mounted on the seat block through the adjusting rod.

[0012] Preferably, the finished film ejection device includes a first X-axis driver, a first Z-axis driver and a discharge clamp, the first Z-axis driver is installed at the output end of the first X-axis driver, the first X-axis driver drives the first Z-axis driver to perform X-axis translation, the discharge clamp is installed at the output end of the first Z-axis driver, and the first Z-axis driver drives the discharge clamp to perform Z-axis translation.

[0013] Preferably, the film sticking mechanism of the present invention further comprises a temporary positioning fixture disposed on one side of the seat block and used for placing the PTC element.

[0014] To achieve the above-mentioned other purpose, the utility model also provides an automatic film laminating machine for a PTC heating element, which includes a material picking mechanism and the above-mentioned film laminating mechanism, wherein the material picking mechanism is used to clamp the PTC element, move it to the film laminating positioning device, and pass it through the channel.

[0015] Preferably, the material picking mechanism includes a second X-axis driver, a Y-axis driver, a second Z-axis driver and a material picking gripper, the second Z-axis driver is installed at the output end of the second X-axis driver, the second X-axis driver drives the second Z-axis driver to perform X-axis translation, the Y-axis driver is installed at the output end of the second Z-axis driver, the second Z-axis driver drives the Y-axis driver to perform Z-axis translation, the material picking gripper is installed at the output end of the Y-axis driver, and the Y-axis driver drives the material picking gripper to perform Y-axis translation.

[0016] Compared with the prior art, the film sticking mechanism of the utility model can automatically and accurately stick the insulating film to the two sides of the PTC component, replacing manual production and effectively improving production efficiency. Moreover, before sticking the film, the insulating film is sucked tightly on the positioning suction block to ensure that the insulating film is fully positioned, so that the insulating film can be accurately stuck to the side of the PTC component.

[0017] It is understandable that the automatic film laminating machine for PTC heating core of the utility model includes the above-mentioned film laminating mechanism. Therefore, the automatic film laminating machine for PTC heating core of the utility model has the function of automatically and accurately attaching the insulating film to the PTC element, and the production is fully automated with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of an automatic film laminating machine for a PTC heating core of the utility model.

[0019] Figure 2 It is a three-dimensional diagram of the film sticking mechanism of the utility model.

[0020] Figure 3 This is a three-dimensional diagram of the film sticking mechanism of the utility model at another angle.

[0021] Figure 4 It is a three-dimensional diagram of the film sticking and positioning device of the utility model when an insulating film is laid flat and a PTC element is inserted downward.

[0022] Figure 5 yes Figure 4 The film positioning device shown is a three-dimensional view after the insulating film is hidden.

[0023] Figure 6 yes Figure 5 A top view of the film positioning device is shown.

[0024] Figure 7 It is a three-dimensional diagram of the temporary storage positioning fixture of the utility model when a PTC component is inserted.

[0025] Figure 8 It is a three-dimensional diagram of the film finished product ejecting device of the utility model.

[0026] Fig. 9 It is a three-dimensional diagram of the material taking mechanism of the utility model.

[0027] Fig.10 It is a stereoscopic diagram of the discharging clamp of the utility model.

[0028] Fig.11 It is a cross-sectional view of the discharging clamp of the utility model.

[0029] Fig.12 The utility model is a structural schematic diagram of an automatic film laminating machine for a PTC heating core for laminating a PTC element. DETAILED DESCRIPTION

[0030] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0031] like Figures 1 to 6 , Fig.12 As shown, the utility model provides an automatic film laminating machine 100 for a PTC heating core, which is mainly used to realize laminating an insulating film 02 on two sides of a PTC element 01. The automatic film laminating machine 100 for a PTC heating core of the utility model comprises a film laminating mechanism 10 and a material taking mechanism 20, wherein the material taking mechanism 20 is used to clamp the PTC element and put it into the film laminating mechanism 10 for film laminating.

[0032] The film sticking mechanism 10 of the utility model includes a film sticking positioning device 11 and a finished film sticking pushing device 12. The finished film sticking pushing device 12 is arranged below the film sticking positioning device 11. The film sticking positioning device 11 includes two positioning suction blocks 111 arranged opposite to each other and used to suck and tighten the positioning suction blocks 111 placed flat thereon, and a through channel 112 is provided between the two positioning suction blocks 111 for the PTC element to vertically pass through. The finished film sticking pushing device 12 clamps the PTC element that passes through the through channel 112 and moves downward, so that the PTC element that moves downward folds the insulating film placed on the positioning suction blocks 111, and the insulating film is attached to the two sides of the PTC element.

[0033] The film sticking mechanism 10 of the present invention can automatically and accurately stick the insulating film to the two sides of the PTC element, replacing manual production and effectively improving production efficiency. Moreover, before sticking the film, the insulating film is sucked tightly on the positioning suction block 111 to ensure that the insulating film is fully positioned and accurately sticks to the side of the PTC element. In the embodiment provided by the present invention, the PTC element is roughly square, and the insulating film is stuck to the left and right sides of the PTC element, but it should be understood that the above-mentioned orientation limitation does not constitute a limitation on the protection scope of the present invention.

[0034] like Figure 4 , Figure 5 and Figure 6As shown, the three sides of the top of the positioning suction block 111 are formed with retaining edges 1111, the retaining edges 1111 surround a placement space 1112 for placing the insulating film, and a plurality of suction holes 1113 are opened on the top of the positioning suction block 111. The retaining edges 1111 limit the deviation of the insulating film, and the suction holes 1113 are connected to a vacuum pump or other exhaust equipment to tightly absorb the insulating film.

[0035] like Figures 2 to 6 , Fig.12 As shown, the film positioning device 11 of the utility model also includes a fixed roller 113 and a movable roller 114 arranged between two positioning suction blocks 111. The movable roller 114 is coaxially arranged with the fixed roller 113 and a through channel 112 is enclosed between the two. The movable roller 114 can be moved away from or close to the fixed roller 113 so that the through channel 112 is set with an adjustable width. The PTC element moves downward along the fixed roller 113 and the movable roller 114 for guidance, and at the same time, the insulating film is pressed on the side of the PTC element. Both the movable roller 114 and the fixed roller 113 can rotate. The movable roller 114 and the fixed roller 113 are both insulated, and insulation can be achieved by covering with an insulating rubber sleeve or the like.

[0036] like Figures 2 to 6 As shown, further, the film-sticking positioning device 11 also includes a seat block 115 and a sliding block 116 slidably mounted on the seat block 115, one of the two positioning suction blocks 111 is mounted on the sliding block 116, the other of the two positioning suction blocks 111 is mounted on the seat block 115, the fixed roller 113 is mounted on the seat block 115, and the movable roller 114 is mounted on the sliding block 116. By operating the translation of the sliding block 116, the distance between the movable roller 114 and the fixed roller 113 can be adjusted, thereby adjusting the width of the through channel 112 to adapt to PTC components of different widths.

[0037] like Figures 2 to 6 As shown, the seat block 115 is provided with a lifting outlet 1151 on the side away from the sliding block 116, and an incoming material sensor 117 aligned with the lifting outlet 1151 is installed on the seat block 115, and the finished film sticking pushing device 12 clamps the PTC element with film sticking and pushes it upward out of the lifting outlet 1151. The PTC element passing through the lifting outlet 1151 has completed the film sticking and is waiting to be taken away, and the incoming material sensor 117 senses that the PTC element line is passing upward, reminding to take the material in time. Preferably, the sliding block 116 is mounted on the seat block 115, and the positioning suction block 111 is mounted on the sliding block 116, which is conducive to saving space and optimizing the structure.

[0038] Preferably, the film-sticking positioning device 11 of the utility model further includes an adjusting rod 118, which is passed through the seat block 115 and connected to the sliding block 116, and the sliding block 116 is slidably mounted on the seat block 115 through the adjusting rod 118. A push plate (not shown) is also installed at one end of the adjusting rod 118 passing through the seat block 115, and the sliding block 116 can be conveniently operated to slide by operating the push plate.

[0039] like Figure 2 , Figure 3 and Figure 8 As shown, the film finished product ejection device 12 includes a first X-axis driver 121, a first Z-axis driver 122 and a discharge clamp 123. The first Z-axis driver 122 is installed at the output end of the first X-axis driver 121, and the first X-axis driver 121 drives the first Z-axis driver 122 to perform X-axis translation. The discharge clamp 123 is installed at the output end of the first Z-axis driver 122, and the first Z-axis driver 122 drives the discharge clamp 123 to perform Z-axis translation. After the PTC element is inserted downward through the channel 112, the discharge clamp 123 clamps the PTC element, and the first Z-axis driver 122 drives it to move downward. After it is in place, the first X-axis driver 121 drives it to translate to the right, and finally the first Z-axis driver 122 drives it to move upward through the lifting discharge port 1151 and output.

[0040] Preferably, the material discharging gripper 123 is a clamping cylinder, and a clamping protective glue 1231 is installed at the output end of the clamping cylinder to avoid clamping the PTC element. The first X-axis driver 121 and the first Z-axis driver 122 are ordinary cylinders, but not limited thereto.

[0041] It should be pointed out that Figure 1 and Fig. 9 In the figure, the direction indicated by arrow X is from left to right, the direction indicated by arrow Y is from front to back, and the direction indicated by arrow Z is from bottom to top, but it should not be limited thereto.

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the film pasting mechanism 10 of the present invention further includes a temporary storage positioning fixture 13 provided on one side of the seat block 115 and used for placing the PTC element. The temporary storage positioning fixture 13 provides temporary storage for the PTC element. When pasting the film, the PTC element taken out of the temporary storage positioning fixture 13 is inserted into the passage 112 for film pasting.

[0043] like Figure 1 , Figure 2 and Fig. 9As shown, specifically, the material taking mechanism 20 is used to take out the PTC element of the material taking gripper 123 and pass it downward through the passage 112, thereby realizing automatic material loading. Of course, according to actual production needs, the material taking mechanism 20 can also be cancelled and manual material loading can be used directly.

[0044] Specifically, the material picking mechanism 20 includes a second X-axis driver 21, a Y-axis driver 22, a second Z-axis driver 23 and a material picking gripper 24. The second Z-axis driver 23 is installed at the output end of the second X-axis driver 21, and the second X-axis driver 21 drives the second Z-axis driver 23 to perform X-axis translation. The Y-axis driver 22 is installed at the output end of the second Z-axis driver 23, and the second Z-axis driver 23 drives the Y-axis driver 22 to perform Z-axis translation. The material picking gripper 24 is installed at the output end of the Y-axis driver 22, and the Y-axis driver 22 drives the material picking gripper 24 to perform Y-axis translation. The material picking mechanism 20 is a three-axis drive. The second X-axis driver 21, the Y-axis driver 22 and the second Z-axis driver 23 are all selected as cylinders, but not limited to this. The material picking gripper 24 is selected as a clamping claw cylinder, but not limited to this. The second X-axis driver 21 and the second Z-axis driver 23 are connected by a connecting plate (not shown). In the X-axis direction, hydraulic buffers 25 aligned with the connecting plates are provided on both sides of the connecting plates. The hydraulic buffers 25 provide movement buffering for the connecting plates to make the pause smoother.

[0045] The following is a brief introduction to the working process of the automatic film laminating machine 100 for PTC heating cores of the utility model: the PTC component is placed on the temporary storage positioning fixture 13, the material picking clamp 24 clamps the PTC component, the material picking mechanism 20 drives the material picking clamp 24 to move to the top of the through channel 112, and then allows the PTC component to pass downward through the through channel 112. The discharge clamp 123 clamps the PTC component that passes through the through channel 112, and the film-laminating finished product ejection device 12 drives the discharge clamp 123 to move downward. In the process of the PTC component passing downward through the through channel 112, the insulating film laid flat on the positioning suction block 111 is folded, and under the pressing of the movable roller 114 and the fixed roller 113, the insulating film is attached to the two sides of the PTC component to complete the film laminating. Afterwards, the finished film ejection device 12 drives the discharge gripper 123 to move rightward and then upward, so that the film-affixed PTC component passes upward through the lifting discharge port 1151, and the incoming material sensor 117 is triggered to remind people to take away the film-affixed PTC component and flow into the next process.

[0046] It should be pointed out that the two side surfaces of the PTC element in the present invention have been pre-mounted with electrode sheets, so only film lamination is required.

[0047] The above disclosure is only a preferred example of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A film sticking mechanism, characterized in that: It includes a film pasting positioning device and a finished film pasting product pushing device, the finished film pasting product pushing device is arranged below the film pasting positioning device, the film pasting positioning device includes two positioning suction blocks which are arranged opposite to each other and are used to suck the insulating film placed flat thereon, a through channel is provided between the two positioning suction blocks for the PTC element to vertically pass through, the finished film pasting product pushing device clamps the PTC element passing through the through channel and moves downward, so that the PTC element moving downward folds the insulating film placed on the positioning suction blocks, and the insulating film is attached to the two side surfaces of the PTC element.

2. The film sticking mechanism according to claim 1, characterized in that: The top three sides of the positioning suction block are formed with retaining edges, the retaining edges enclose a placement space for placing the insulating film, and the top of the positioning suction block is provided with a plurality of suction holes.

3. The film sticking mechanism according to claim 1, characterized in that: The film positioning device also includes a fixed roller and a movable roller arranged between the two positioning suction blocks. The movable roller is coaxially arranged with the fixed roller and the passing channel is surrounded by the two. The movable roller can be moved away from or close to the fixed roller so that the passing channel is set with an adjustable width.

4. The film sticking mechanism according to claim 3, characterized in that: The film positioning device also includes a seat block and a sliding block slidably mounted on the seat block, one of the two positioning suction blocks is mounted on the sliding block, the other of the two positioning suction blocks is mounted on the seat block, the fixed roller is mounted on the seat block, and the movable roller is mounted on the sliding block.

5. The film sticking mechanism according to claim 4, characterized in that: The seat block is provided with a lifting outlet on a side away from the sliding block, and an incoming material sensor aligned with the lifting outlet is installed on the seat block. The finished film-attached product pushing device clamps the film-attached PTC element and pushes it upward through the lifting outlet.

6. The film sticking mechanism according to claim 4, characterized in that: It also includes an adjusting rod, which is passed through the seat block and connected to the sliding block. The sliding block is slidably installed on the seat block through the adjusting rod.

7. The film sticking mechanism according to claim 1, characterized in that: The finished film ejection device includes a first X-axis driver, a first Z-axis driver and a discharge clamp, wherein the first Z-axis driver is installed at the output end of the first X-axis driver, and the first X-axis driver drives the first Z-axis driver to perform X-axis translation, and the discharge clamp is installed at the output end of the first Z-axis driver, and the first Z-axis driver drives the discharge clamp to perform Z-axis translation.

8. The film sticking mechanism according to claim 4, characterized in that: It also includes a temporary storage positioning fixture which is arranged on one side of the seat block and is used for placing the PTC element.

9. An automatic film laminating machine for PTC heating core, characterized in that: It comprises a material taking mechanism and a film sticking mechanism as described in any one of claims 1 to 8, wherein the material taking mechanism is used to clamp the PTC element, move it to the film sticking positioning device, and pass it into the passing channel.

10. The automatic film laminating machine for PTC heating core according to claim 9, characterized in that: The material picking mechanism includes a second X-axis driver, a Y-axis driver, a second Z-axis driver and a material picking gripper, wherein the second Z-axis driver is installed at the output end of the second X-axis driver, and the second X-axis driver drives the second Z-axis driver to perform X-axis translation, the Y-axis driver is installed at the output end of the second Z-axis driver, and the second Z-axis driver drives the Y-axis driver to perform Z-axis translation, and the material picking gripper is installed at the output end of the Y-axis driver, and the Y-axis driver drives the material picking gripper to perform Y-axis translation.

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