EVA double-material-coil automatic material changing and material coil returning mechanism
By designing an automatic material changing and recirculation mechanism for EVA double rolls, and utilizing servo motors and cylinders to achieve automatic material changing and recirculation, the problems of long time consumption and large space occupation in existing technologies for manual material changing are solved, thereby improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GAORUN NEW ENERGY TECH CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-05-15
AI Technical Summary
The existing automatic material changing and reflow mechanism for dual-roll EVA is time-consuming, space-consuming, and requires manual intervention when changing materials during downtime, which cannot meet the production cycle requirements.
An automatic material changing and recirculation mechanism for dual EVA rolls was designed. It uses a servo motor and a cylinder as the power unit to realize automatic material changing of dual rolls at dual stations and automatic recirculation of empty rolls. Through the cooperation of the servo motor universal limit component and the cylinder, the entire process of automatic material changing without manual intervention is achieved.
It enables automatic material changing and recirculation without stopping the machine, saving manual time, simplifying the mechanical structure, and improving production efficiency.
Smart Images

Figure CN224242299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of the photovoltaic industry, specifically to an automatic material changing and reflow mechanism for EVA dual-rollers. Background Technology
[0002] The EVA dual-roll automatic material changing and reflow mechanism is used in the photovoltaic industry for cutting EVA / POE / photovoltaic backsheets, etc. However, when using this equipment, the original product is a single roll, requiring manual material changing during downtime, which results in long waiting times and cannot meet the production cycle. Empty rolls flow forward, requiring manual removal, which occupies too much space and is time-consuming and labor-intensive. Therefore, we propose an EVA dual-roll automatic material changing and reflow mechanism. Utility Model Content
[0003] The purpose of this invention is to provide an automatic material changing and reflow mechanism for dual-roll EVA coils, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An automatic material changing and recirculation mechanism for EVA double-roll coils includes a support plate. The right top front and rear ends of the support plate are respectively provided with station one and station two. The top front and rear ends of the support plate are respectively provided with a new material roll and an empty material roll, both located on the right side of the support plate. The right top rear end of the support plate is provided with a lifting cylinder that cooperates with the empty material roll. The top and bottom of the right front end of the support plate are respectively provided with an upper push rod and a lower push rod. The right side of the support plate has a support plate ramp. The top of the right rear end of the support plate is provided with a descending limit block. The bottom front end of the support plate is provided with a sliding mounting plate. The left top rear end of the support plate has a groove corresponding to the left side of the empty material roll. The bottom of the right rear end of the support plate is provided with a descending ramp guide plate. The top of the left rear end of the support plate is provided with a descending cylinder.
[0006] Furthermore: the new material roll and the empty material roll are arranged in parallel, and a transmission gear is provided on the left side of both the new material roll and the empty material roll.
[0007] Furthermore: pads are provided on the front and rear ends of the bottom of the support plate, and each pad has a vertical through-hole.
[0008] Furthermore: the support plate has horizontally through-holes on all four sides, and a mounting bracket is provided on the front end of the support plate.
[0009] Furthermore, mounting holes are provided at the top and bottom of the front and rear end faces on the right side of the groove, and the depth of the groove is one-third of the thickness of the support plate.
[0010] Furthermore: the angle between the lowering cylinder and the support plate is set to 90 degrees, and a fixing frame is provided between the lowering cylinder and the support plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This EVA dual-roll automatic material changing and recirculation mechanism features dual rolls, dual workstations, and non-stop feeding, saving downtime caused by manual loading. Servo-driven automatic material changing and automatic recirculation of empty rolls are achieved through a simple and ingenious mechanical structure requiring no manual intervention. Utilizing a servo motor universal stop, the mechanism can either retract the universal stop over the roll or advance the universal stop to hold the roll in place, causing it to roll along with the servo motor. This cleverly achieves fully automated material changing without manual intervention. The mechanism incorporates a cylinder as the power unit, a servo motor, and an increased height for the equipment body, along with an added recirculation track, allowing empty rolls to automatically return to the loading port. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] In the diagram: 1. Station 1; 2. Station 2; 3. New material roll; 4. Empty material roll; 5. Lifting cylinder; 6. Support plate; 7. Upper push rod; 8. Lower push rod; 9. Lowering limit block; 10. Horizontal mounting plate; 11. Groove; 12. Lower slope guide plate; 13. Lowering cylinder. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Example 1:
[0017] Please see Figure 1This utility model provides a technical solution: an automatic material changing and return mechanism for double-roll EVA, including a support plate 6. The right side top front and rear ends of the support plate 6 are respectively provided with station 1 and station 2. The top front and rear ends of the support plate 6 are respectively provided with a new material roll 3 and an empty material roll 4, both located on the right side of the support plate 6. The right side top rear end of the support plate 6 is provided with a lifting cylinder 5 that cooperates with the empty material roll 4. The top and bottom of the right front end of the support plate 6 are respectively provided with an upper push rod 7 and a lower push rod 8. The right side of the support plate 6 is provided with a support... The support plate has a sloping surface. A descending limit block 9 is provided at the top of the right rear end face of the support plate 6. A translational mounting plate 10 is provided at the front bottom face of the support plate 6. A groove 11 is provided at the top rear end face of the left side of the support plate 6 corresponding to the left side of the empty material roll 4. A descending slope guide plate 12 is provided at the bottom of the right rear end face of the support plate 6. A descending cylinder 13 is provided at the top of the left rear end face of the support plate 6. When the material changing servo mechanism is activated, it drives the translational mounting plate 10. The universal limit push rod on the translational mounting plate 10 abuts against the new material roll 3 on station 2, and moves the new material roll 3 to station 1. The lifting cylinder extends 5 to push the empty material roll 4 out of the groove 11 of the support plate 6. At this time, the new material roll 3 comes into contact with the empty material roll 4 and rolls together with it towards the slope of the support plate 6. The new material roll 3 enters the groove 11 of the support plate 6 at station 1, and the automatic material change is completed. The empty material roll 4 is hit by the new material roll 3 and rolls into the slope of the support plate due to the inclination angle of the slope and gravity. After it reaches the position, the lowering cylinder 13 extends and drives the empty material roll 4 to descend together. The empty material roll 4 comes into contact with the lower slope guide plate 12 and automatically separates from the lowering limit block 9. It rolls a distance along the lower guide block and hits the universal limit lower push rod 8 on the translation mounting plate 10. The material change servo starts and moves to station 2. The lower push rod 8 abuts against the empty material roll 4 and carries the empty material roll 4 together to station 2. The automatic return is completed.
[0018] Preferably, the new material roll 3 and the empty material roll 4 are arranged in parallel. This arrangement can increase stability and avoid misalignment, which would prevent automatic material changing. Both the new material roll 3 and the empty material roll 4 have transmission gears on their left sides, which can be connected to the transmission end of the material changing servo mechanism.
[0019] Preferably, the bottom front and rear ends of the support plate 6 are provided with pads, and each pad has a vertical through hole, which facilitates the installation and fixing of the support plate 6.
[0020] Preferably, the support plate 6 has horizontally through-holes on all four sides, which facilitates the installation of components on the support plate 6, and the front end face of the support plate 6 is provided with a mounting bracket.
[0021] Example 2:
[0022] Reference Figure 1 This embodiment differs from the first embodiment in that: the top and bottom of the front and rear end faces on the right side of the inner cavity of the groove 11 are provided with mounting holes, and the depth of the groove 11 is one-third of the thickness of the support plate 6. This setting facilitates the positioning, installation and fixation of the material changing servo mechanism; the included angle between the lowering cylinder 13 and the support plate 6 is set to ninety degrees, and a fixing frame is provided between the lowering cylinder 13 and the support plate 6.
[0023] All electrical appliances mentioned in this article are connected to an external power source via wires.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic material changing and reflow mechanism for dual-roll EVA coils, comprising a support plate (6), characterized in that: The support plate (6) has a work station 1 (1) and a work station 2 (2) on the top front and rear ends of the right side, respectively. The support plate (6) has a new material roll (3) and an empty material roll (4) on the top front and rear ends of the top, respectively. Both the new material roll (3) and the empty material roll (4) are located on the right side of the support plate (6). The support plate (6) has a lifting cylinder (5) that cooperates with the empty material roll (4) on the top rear ends of the right side. The support plate (6) has an upper push rod (7) on the top and a lower push rod (8) on the bottom of the front ends of the right side, respectively. The support plate (6) has a support plate ramp on the right side, a descending limit block (9) is provided on the top of the right rear end face of the support plate (6), a translational installation plate (10) is provided on the bottom front end face of the support plate (6), a groove (11) is provided on the left top rear end face of the support plate (6) corresponding to the left side of the empty material roll (4), a descending ramp guide plate (12) is provided on the bottom of the right rear end face of the support plate (6), and a descending cylinder (13) is provided on the top of the left rear end face of the support plate (6).
2. The EVA dual-roll automatic material changing and reflow mechanism according to claim 1, characterized in that: The new material roll (3) and the empty material roll (4) are arranged in parallel, and a transmission gear is provided on the left side of both the new material roll (3) and the empty material roll (4).
3. The EVA dual-roll automatic material changing and reflow mechanism according to claim 1, characterized in that: The support plate (6) has pads on its bottom front and rear ends, and each pad has a vertical through hole.
4. The EVA dual-roll automatic material changing and reflow mechanism according to claim 1, characterized in that: The support plate (6) has horizontally penetrating connecting holes on all four sides, and the front end face of the support plate (6) is provided with a mounting bracket.
5. The automatic material changing and reflow mechanism for EVA double-roll as described in claim 1, characterized in that: The groove (11) has mounting holes at the top and bottom of the front and rear end faces on the right side of the inner cavity. The depth of the groove (11) is one-third of the thickness of the support plate (6).
6. The EVA dual-roll automatic material changing and reflow mechanism according to claim 1, characterized in that: The included angle between the lowering cylinder (13) and the support plate (6) is set to 90 degrees, and a fixing frame is provided between the lowering cylinder (13) and the support plate (6).