Paper feeding mechanism applied to gold stamping indentation

Abstract

The utility model provides a paper feeding mechanism applied to gilding indentation, which solves the problems of insufficient transmission displacement accuracy and the like of the paper feeding mechanism, and comprises a paper feeding component and a transmission component opposite to the paper feeding component, and the transmission component is provided with a sensing element and a paper clamping component. An induction reset assembly is arranged between the paper clamping assembly and the conveying assembly, and a supporting assembly and an imprinting frame opposite to the supporting assembly are arranged in the conveying assembly. The transmission device has the advantages of high transmission precision, good structural stability and the like.

Description

Technical Field

[0001] This utility model belongs to the field of printing equipment technology, specifically relating to a paper feeding mechanism used for hot stamping and embossing. Background Technology

[0002] Paper feeders primarily use specific mechanical structures and control systems to separate sheets of paper from a paper stack and accurately transport them to the corresponding positions in the next process step according to a set speed and direction. For example, some use suction devices to adsorb the paper surface, separating it from the paper stack, and then use rollers and other transmission components to achieve smooth paper transport; others use friction, relying on appropriate friction between friction wheels and the paper to move the paper. Hot stamping and embossing processes require precise and stable paper feeding operations, but in actual use, existing paper feeding mechanisms cannot accurately control their transmission position, and the lack of limiting structures during transmission causes the embossing position to deviate.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a hot stamping foil conveying mechanism for a hot stamping machine [201810302777.1], which includes two frame middle connecting plates arranged front and rear. Upper guide rollers are provided on the upper parts of the left and right sides of the two frame middle connecting plates, and lower guide rollers are provided on the lower parts of the left and right sides of the two frame middle connecting plates. The two ends of the upper and lower guide rollers are fixed to the two main connecting plates. A main connecting plate is fixed on the left side wall of each of the two frame middle connecting plates, and a winding support plate is fixed on the right side wall of one frame middle connecting plate. A rotary servo motor is fixed on the middle outer side wall of one main connecting plate, and the two ends of the transmission shaft are hinged to the two main connecting plates.

[0004] The above solution has solved the problem of hot stamping foil transmission efficiency to some extent, but it still has many shortcomings, such as insufficient transmission displacement accuracy. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a reasonably designed paper feeding mechanism with high displacement accuracy for hot stamping and embossing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a paper feeding mechanism for hot stamping and embossing, comprising a paper feeding component and a transmission component opposite to the paper feeding component, the transmission component being equipped with a sensing element and a paper clamping component, the paper clamping component being linked to the transmission component and having a sensing reset component between them, the transmission component having a built-in support component and an embossing frame opposite to the support component.

[0007] In the aforementioned paper feeding mechanism for hot stamping and embossing, the paper feeding assembly includes a vertically arranged paper feeding bracket, on which a paper feeding shaft that can slide up and down is mounted. The end of the paper feeding shaft is connected to the paper feeding bracket via a lifting screw. The paper feeding shaft is connected to a paper feeding motor, and the paper feeding shaft has rubber wheels arranged axially.

[0008] In one of the aforementioned paper feeding mechanisms used for hot stamping and embossing, the paper feeder is equipped with a guide cover.

[0009] In the aforementioned paper feeding mechanism for hot stamping and embossing, the transmission component includes transmission guide rollers that are driven and connected to a transmission motor, and a transmission belt is driven and connected between the transmission guide rollers.

[0010] In the aforementioned paper feeding mechanism for hot stamping and embossing, the paper clamping assembly includes a paper clamping frame installed at the end of the transmission assembly. The paper clamping frame is connected to a paper clamping swing arm via a swing motor. The paper clamping swing arm is rotatably connected to a paper clamping guide roller. The paper clamping guide roller moves with the paper clamping swing arm and adheres and presses against the transmission belt.

[0011] In the aforementioned paper feeding mechanism for hot stamping and embossing, the induction reset assembly includes a reset swing arm rotatably connected to the paper clamping guide roller, a guide roller rotatably connected to the end of the reset swing arm, and an elastic reset element installed between the reset swing arm and the paper clamping guide roller.

[0012] In the aforementioned paper feeding mechanism for hot stamping and embossing, the support assembly includes a support plate disposed at the lower end of the conveyor belt, and the support plate has a limiting opening for the conveyor belt to pass through.

[0013] In the aforementioned paper feeding mechanism for hot stamping and embossing, the embossing frame includes main frame plates symmetrically arranged on both sides of the upper end of the conveyor belt, and several secondary frame plates located above the conveyor belt are connected between the main frame plates. The main frame plates are fixedly connected to the support plate.

[0014] In the aforementioned paper feeding mechanism used for hot stamping and embossing, the conveyor belt is coated with an anti-slip layer.

[0015] In the aforementioned paper feeding mechanism for hot stamping and embossing, the sensing elements include a pressure sensor and a displacement sensor disposed on the transmission assembly, and an infrared sensor is disposed between the transmission assembly and the paper clamping assembly.

[0016] Compared with existing technologies, the advantages of this utility model are as follows: the transmission component is equipped with a paper clamping component and a sensing reset component, which can transmit and position the paper and accurately control its movement; the transmission component has a built-in support component and an imprint frame, which provides sufficient support and stability for the transmission belt and facilitates direct imprinting operation; the sensing element monitors the paper movement status in real time to ensure that the paper is transmitted one by one and avoids interference. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a structural schematic diagram from another perspective of the present invention;

[0020] In the figure, the components are: paper feeding assembly 1, paper feeding bracket 11, paper feeding shaft 12, lifting screw 13, paper feeding motor 14, rubber wheel 15, guide cover plate 16, transmission assembly 2, transmission motor 21, transmission guide roller 22, transmission belt 23, anti-slip layer 3, paper clamping assembly 4, paper clamping frame 41, swing motor 42, paper clamping swing arm 43, paper clamping guide roller 44, induction reset assembly 5, reset swing arm 51, guide roller 52, support assembly 6, support plate 61, limit port 62, imprint frame 7, main frame plate 71, and secondary frame plate 72. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-3 As shown, a paper feeding mechanism for hot stamping and embossing includes a paper feeding component 1 and a transmission component 2 opposite to the paper feeding component 1. The transmission component 2 transmits the paper input by the paper feeding component 1 at a constant speed. The transmission component 2 is equipped with a sensing element and a paper clamping component 4 to ensure that the paper is input one by one. To address the problem of paper curling and shifting during transmission, the paper clamping component 4 is linked to the transmission component 2 and a sensing reset component 5 is provided between them for transmission limiting. The transmission component 2 has a built-in support component 6 and an imprinting frame 7 opposite to the support component 6. The imprinting frame 7 cooperates with the transmission component 2 to provide sufficient operating space for hot stamping and embossing without affecting normal transmission.

[0023] Specifically, the paper feeding assembly 1 still uses a roller drive for paper input, including a vertically arranged paper feeding bracket 11. A paper feeding shaft 12, which can slide up and down, is mounted on the paper feeding bracket 11. The end of the paper feeding shaft 12 is connected to the paper feeding bracket 11 via a lifting screw 13. A paper feeding motor 14 is connected to the paper feeding shaft 12. The paper feeding shaft 12 has rubber wheels 15 arranged axially. The paper feeding shaft 12 is driven down by the lifting screw 13, and its rubber wheels 15 contact and rub against the paper. The paper feeding shaft 12 and the rubber wheels 15 can adopt an eccentric wheel structure, thereby driving the paper to be fed in one by one.

[0024] Specifically, the paper feed bracket 11 is equipped with a guide cover 16, which provides good protection for the paper feed bracket 11 without affecting the normal movement of the paper feed shaft 12 and the rubber wheel 15.

[0025] Furthermore, similar to conventional belt conveyor structures, the conveyor assembly 2 in this embodiment includes a conveyor guide roller 22 that is driven and connected to the conveyor motor 21. A conveyor belt 23 is driven and connected between the conveyor guide rollers 22. The conveyor belt 23 conveys the paper to a designated position, where it is directly stamped by an external imprinting assembly.

[0026] Furthermore, unlike existing limiting structures, the paper clamping assembly 4 in this embodiment includes a paper clamping frame 41 installed at the end of the transmission assembly 2. The paper clamping frame 41 is connected to a paper clamping swing arm 43 via a swing motor 42. The paper clamping swing arm 43 is rotatably connected to a paper clamping guide roller 44. The paper clamping guide roller 44 moves with the paper clamping swing arm 43 and is pressed against the transmission belt 23.

[0027] In addition, to further improve the transmission limiting effect, the sensing reset assembly 5 includes a reset swing arm 51 rotatably connected to the paper clamping guide roller 44, a guide roller 52 rotatably connected to the end of the reset swing arm 51, and an elastic reset element installed between the reset swing arm 51 and the paper clamping guide roller 44. When the paper clamping guide roller 44 presses the paper onto the conveyor belt 23 under the movement of the paper clamping swing arm 43, the guide roller 52 at the end of the reset swing arm 51 also comes into contact with the paper. The sensor element set between the reset swing arm 51 and the guide roller 52 senses whether the paper has shifted during the transmission process.

[0028] Meanwhile, the support component 6 provides sufficient support for the conveyor belt 23, specifically including a support plate 61 set at the lower end of the conveyor belt 23. The support plate 61 has a limiting opening 62 for the conveyor belt 23 to pass through. The support plate 61 and the conveyor belt 23 can withstand sufficient pressure.

[0029] As can be seen, the imprinting frame 7 provides local reinforcement to the conveyor belt 23, including main frame plates 71 symmetrically arranged on both sides of the upper end of the conveyor belt 23, with several sub-frame plates 72 connected between the main frame plates 71 located above the conveyor belt 23, and the main frame plates 71 fixedly connected to the support plate 61. This imprinting frame 7 provides a corresponding operating window for the imprinting assembly.

[0030] It is obvious that the conveyor belt 23 is coated with an anti-slip layer 3 to ensure the stability of paper transmission, while it has a certain degree of elasticity to prevent excessive pressure from the paper clamping guide roller 44 and guide roller 52 from damaging the paper during operation.

[0031] Preferably, the sensing elements include a pressure sensor and a displacement sensor disposed on the transmission assembly 2, and an infrared sensor is disposed between the transmission assembly 2 and the paper clamping assembly 4.

[0032] In summary, the principle of this embodiment is as follows: the paper feeding assembly 1 and the transmission assembly 2 transmit the paper one by one, wherein the sensing element and the paper clamping assembly 4 work together to adjust the clamping force to ensure stable paper transmission, and the support assembly 6 and the imprint frame 7 provide sufficient operating space for the external imprint assembly.

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0034] Although this document frequently uses terms such as paper feed assembly 1, paper feed bracket 11, paper feed shaft 12, lifting screw 13, paper feed motor 14, rubber wheel 15, guide cover plate 16, transmission assembly 2, transmission motor 21, transmission guide roller 22, transmission belt 23, anti-slip layer 3, paper clamping assembly 4, paper clamping frame 41, swing motor 42, paper clamping swing arm 43, paper clamping guide roller 44, sensing reset assembly 5, reset swing arm 51, guide roller 52, support assembly 6, support plate 61, limiting port 62, imprinting frame 7, main frame plate 71, and secondary frame plate 72, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A paper feeding mechanism for hot stamping and embossing, comprising a paper feeding assembly (1) and a transfer assembly (2) opposite to the paper feeding assembly (1), characterized in that, The transmission component (2) is equipped with a sensing element and a paper clamping component (4). The paper clamping component (4) is linked with the transmission component (2) and a sensing reset component (5) is provided between them. The transmission component (2) has a built-in support component (6) and an imprinting frame (7) opposite to the support component (6).

2. The paper feeding mechanism for hot stamping and embossing according to claim 1, characterized in that, The paper feeding assembly (1) includes a vertically arranged paper feeding bracket (11), on which a paper feeding shaft (12) that can slide up and down is mounted. The end of the paper feeding shaft (12) is connected to the paper feeding bracket (11) via a lifting screw (13). The paper feeding shaft (12) is connected to a paper feeding motor (14). The paper feeding shaft (12) has rubber wheels (15) arranged along the axial direction.

3. The paper feeding mechanism for hot stamping and embossing according to claim 2, characterized in that, The paper feed bracket (11) is equipped with a guide cover (16).

4. The paper feeding mechanism for hot stamping and embossing according to claim 1, characterized in that, The transmission component (2) includes a transmission guide roller (22) that is drivenly connected to the transmission motor (21), and a transmission belt (23) is drivenly connected between the transmission guide rollers (22).

5. A paper feeding mechanism for hot stamping and embossing according to claim 4, characterized in that, The paper clamping assembly (4) includes a paper clamping frame (41) installed at the end of the transmission assembly (2). The paper clamping frame (41) is connected to a paper clamping swing arm (43) via a swing motor (42). The paper clamping swing arm (43) is rotatably connected to a paper clamping guide roller (44). The paper clamping guide roller (44) moves with the paper clamping swing arm (43) and is pressed against the transmission belt (23).

6. A paper feeding mechanism for hot stamping and embossing according to claim 5, characterized in that, The inductive reset assembly (5) includes a reset swing arm (51) rotatably connected to the paper clamping guide roller (44), a guide roller (52) rotatably connected to the end of the reset swing arm (51), and an elastic reset member installed between the reset swing arm (51) and the paper clamping guide roller (44).

7. A paper feeding mechanism for hot stamping and embossing according to claim 4, characterized in that, The support component (6) includes a support plate (61) disposed at the lower end of the conveyor belt (23), and the support plate (61) has a limiting opening (62) for the conveyor belt (23) to pass through.

8. A paper feeding mechanism for hot stamping and embossing according to claim 7, characterized in that, The imprint frame (7) includes main frame plates (71) symmetrically arranged on both sides of the upper end of the conveyor belt (23), and several secondary frame plates (72) located above the conveyor belt (23) are connected between the main frame plates (71). The main frame plates (71) are fixedly connected to the support plate (61).

9. A paper feeding mechanism for hot stamping and embossing according to claim 4, characterized in that, The conveyor belt (23) is coated with an anti-slip layer (3).

10. A paper feeding mechanism for hot stamping and embossing according to claim 1, characterized in that, The sensing elements include a pressure sensor and a displacement sensor disposed on the transmission assembly (2), and an infrared sensor is disposed between the transmission assembly (2) and the paper clamping assembly (4).

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