Double-sided stamping machine

Abstract

The utility model belongs to the field of stamping, and discloses a double-face stamping machine which comprises a machine shell, a front stamping mechanism and a rear stamping mechanism are arranged in the machine shell in a front-back mode, the first stamping mechanism and the second stamping mechanism are arranged in an up-down inverted mode, one stamping mechanism is printed on the front face of paper, and the other stamping mechanism is printed on the back face of paper. And the front side of the machine shell is provided with a feeding port corresponding to the first stamping mechanism, and the rear side of the machine shell is provided with a discharging port corresponding to the second stamping mechanism. According to the utility model, the two stamping mechanisms with opposite installation directions are integrated in one device, so that double-sided stamping can be realized, the integration level is high, the occupied space is small, the stamping efficiency is high, and the cost is low. The printing ink cleaning mechanism is used for cleaning the roller, printing ink is prevented from remaining on the roller, and the stamping quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of stamping, in particular to a double-sided stamping machine. Background Art

[0002] At present, general stamping machines can only stamp on one side. The applicant applied for a printing, stamping and scanning integrated machine with the publication number of CN221113265U on October 31, 2023. It includes a first stamping machine and a second stamping machine. By installing the two stamping machines one upright and one upside down, double-sided stamping of paper is achieved. However, this requires two stamping machines, resulting in high costs and large volumes. Moreover, after the first stamping, the paper needs to pass through a roller for the second stamping, which may leave ink residues on the roller and affect the stamping of subsequent papers. Content of the Utility Model

[0003] The purpose of the utility model is to provide a double-sided stamping machine to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A double-sided stamping machine includes a machine shell. Two stamping mechanisms are arranged front and back in the machine shell, which are divided into a front-mounted first stamping mechanism and a rear-mounted second stamping mechanism. The installation directions of the first stamping mechanism and the second stamping mechanism are upside down. One of them stamps the front side of the paper, and the other stamps the back side of the paper. There is a feeding port corresponding to the first stamping mechanism on the front side of the machine shell, and a discharging port corresponding to the second stamping mechanism on the rear side of the machine shell.

[0006] Further, the stamping mechanism includes a stamping component and a first roller. The stamping component and the first roller are arranged oppositely. The stamping component includes a stamping shaft and a stamping wheel arranged on the stamping shaft. The stamping wheel and the first roller clamp the paper together to convey the paper, and the stamping wheel stamps the paper. The stamping shaft and / or the first roller are driven to rotate by a power source.

[0007] Further, the stamping component further includes a paper pressing wheel arranged on the stamping shaft. The paper pressing wheel and the first roller clamp and convey the paper together.

[0008] Further, the stamping wheel is in axial sliding fit with the stamping shaft, and the two are in circumferential limit fit so that they do not rotate relative to each other circumferentially. The stamping mechanism further includes a moving component, and the moving component adjusts the axial position of the stamping wheel on the stamping shaft.

[0009] Further, the moving component includes a lead screw, a nut seat, and a connecting frame. The lead screw is driven to rotate by a power source. The nut seat is screwed onto the lead screw, and the connecting frame is connected to the nut seat. The connecting frame is used to push the stamping wheel along the axial direction of the stamping shaft, thereby adjusting the position of the stamping wheel in the axial direction on the stamping shaft.

[0010] Further, the left and right sides of the connecting frame respectively have pushing parts, and the stamping wheel is located between the pushing parts on the left and right sides.

[0011] Further, the stamping wheel is equipped with an ink-adding wheel that is closely attached to its wheel surface.

[0012] Further, the stamping mechanism further includes a second roller, and the second roller conveys the paper by rotating.

[0013] Further, the second stamping mechanism is equipped with an ink cleaning mechanism. The ink cleaning mechanism includes an ink cleaning part, and the ink cleaning part is attached to the roller in the second stamping mechanism to clean the ink on the roller.

[0014] Further, the ink cleaning mechanism further includes a pressing component and a mounting frame. The ink cleaning part is arranged on the mounting frame, and the mounting frame is slidably matched with the machine shell. The pressing component is used to press the mounting frame, thereby adjusting the pressing degree between the ink cleaning part and the roller in the second stamping mechanism.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1) The present utility model integrates two stamping mechanisms with opposite installation directions in one device, which can achieve double-sided stamping, with high integration, small occupied space, high stamping efficiency, and low cost;

[0017] 2) The present utility model cleans the roller through the ink cleaning mechanism, avoiding ink residue on the roller and ensuring the stamping quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model.

[0019] Figure 2 is a schematic cross-sectional structural diagram of the present utility model.

[0020] Figure 3 is a schematic structural diagram of the present utility model when the machine shell is removed.

[0021] Figure 4 is a schematic structural diagram of the first stamping mechanism in the present utility model.

[0022] Figure 5 is a schematic structural diagram of the second stamping mechanism and the ink cleaning mechanism in the present utility model.

[0023] Figure 6 This is a schematic structural diagram of the second stamping mechanism in the present utility model.

[0024] Figure 7 This is a schematic structural diagram of the second stamping mechanism in the present utility model when the first roller and the second roller are removed.

[0025] Figure 8 This is a schematic structural diagram of the connecting frame in the present utility model.

[0026] In the figure: machine housing 1, feed inlet 100, discharge outlet 101, first stamping mechanism 2a, second stamping mechanism 2b, stamping shaft 200, stamping wheel 201, paper pressing wheel 202, first roller 203, second roller 204, lead screw 205, nut seat 206, connecting frame 207, pushing part 2070, ink adding wheel 208, first motor 209, second motor 210, ink cleaning mechanism 3, ink cleaning part 300, mounting frame 301, connecting shaft 302, transmission shaft 303, cam 304, third motor 305, first guiding assembly 4, second guiding assembly 5, third guiding assembly 6, fourth guiding assembly 7, fifth guiding assembly 8, traction wheel assembly 9, active traction wheel shaft 900, active traction wheel 901, passive traction wheel shaft 902, passive traction wheel 903, fourth motor 10, sixth guiding assembly 11. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-8 , a double-sided stamping machine, including a machine housing 1. Two stamping mechanisms are arranged front and back in the machine housing 1, which are divided into a front first stamping mechanism 2a and a rear second stamping mechanism 2b. The installation directions of the first stamping mechanism 2a and the second stamping mechanism 2b are upside down. The first stamping mechanism 2a stamps the front side of the paper, and the second stamping mechanism 2b stamps the back side of the paper. In addition, it can also be that the second stamping mechanism 2b stamps the front side of the paper and the first stamping mechanism 2a stamps the back side of the paper. The front side of the machine housing 1 has a feed inlet 100 corresponding to the first stamping mechanism 2a, and the rear side of the machine housing 1 has a discharge outlet 101 corresponding to the second stamping mechanism 2b.

[0029] Continue to refer to Figure 4 , Figure 6 and Figure 7, in an embodiment of the present utility model, the stamping mechanism includes a stamping assembly and a first roller 203 rotatably mounted on the machine housing 1. The stamping assembly and the first roller 203 are arranged opposite to each other vertically. The stamping assembly includes a stamping shaft 200 rotatably mounted on the machine housing 1, and a stamping wheel 201 and a paper pressing wheel 202 provided on the stamping shaft 200. The stamping wheel 201 is in sliding fit with the stamping shaft 200 along the axial direction, and the two are in circumferential limiting fit so that they do not rotate relative to each other circumferentially. Specifically, the stamping shaft 200 adopts a D-shaped hole shaft, and the shape and size of the shaft hole of the stamping wheel 201 match it. The stamping wheel 201 and the first roller 203 clamp the paper together to convey the paper, and the stamping wheel 201 stamps the paper. There are two paper pressing wheels 202, which are respectively arranged at both ends of the stamping shaft 200. The paper pressing wheels 202 and the first roller 203 clamp and convey the paper together. The stamping shaft 200 is driven to rotate by a first motor 209 and a corresponding transmission assembly. The transmission assembly is preferably a gear transmission structure. In addition, a conveyor belt mechanism, a sprocket mechanism, etc. can also be adopted.

[0030] Continue to refer to Figure 4 , Figure 6 , Figure 7 , Figure 8 , in an embodiment of the present utility model, the stamping mechanism further includes a moving assembly, and the moving assembly adjusts the axial position of the stamping wheel 201 on the stamping shaft 200. The moving assembly includes a lead screw 205, a nut seat 206 and a connecting frame 207. The lead screw 205 is rotatably mounted on the machine housing 1, and is driven by a second motor 210 and a corresponding transmission assembly. The transmission assembly is preferably a gear transmission structure. In addition, a conveyor belt mechanism, a sprocket mechanism, etc. can also be adopted. The nut seat 206 is screwed on the lead screw 205, and the connecting frame 207 is connected to the nut seat 206. The left and right sides of the connecting frame 207 respectively have a pushing portion 2070. The stamping wheel 201 is located between the pushing portions 2070 on the left and right sides. The pushing portion 2070 has a U-shaped opening, and the U-shaped opening is buckled on the stamping shaft 200. Through the limiting of the connecting frame 207 and the stamping shaft 200, both the connecting frame 207 and the nut seat 206 will not rotate circumferentially. The two pushing portions 2070 are used to push the stamping wheel 201 along the axial direction of the stamping shaft 200, so as to adjust the axial position of the stamping wheel 201 on the stamping shaft 200. The pushing portion 2070 is not fixed to the stamping wheel 201 and will not affect the rotation of the stamping wheel 201.

[0031] When the moving assembly works, the second motor 210 drives the lead screw 205 to rotate. The lead screw 205 drives the nut seat 206 and the connecting frame 207 to move axially together. The connecting frame 207 drives the stamping wheel 201 to move axially, so as to adjust the position of the stamping wheel 201.

[0032] In other embodiments of the present utility model, the moving assembly can also adopt mechanisms such as cylinders, sliding tables, electric push rods, etc.

[0033] Continue to refer to Figure 7 In an embodiment of the present utility model, the stamping wheel 201 is equipped with an ink-adding wheel 208 closely attached to its wheel surface. Specifically, the ink-adding wheel 208 is arranged on the connecting frame 207, located between the stamping wheel 201 and the corresponding nut seat 206. The ink-adding wheel 208 includes a wheel shaft and an ink-adding sponge sleeved on the wheel shaft.

[0034] Continue to refer to Figure 4 and Figure 6 In an embodiment of the present utility model, the stamping mechanism further includes a second roller 204 rotatably installed on the machine shell 1. The second roller 204 is arranged side by side and parallel to the first roller 203, and conveys the paper through rotation. As Figure 4 shown, in the first stamping mechanism 2a, the first roller 203 is located at the lower end of the stamping shaft 200, and the second roller 204 is located in front of the first roller 203. As Figure 6 shown, in the second stamping mechanism 2b, the first roller 203 is located at the upper end of the stamping shaft 200, and the second roller 204 is located in front of the first roller 203. The gap between the first roller 203 and the stamping wheel 201 in the first stamping mechanism 2a and the gap between the first roller 203 and the stamping wheel 201 in the second stamping mechanism 2b are at the same height. Both the first roller 203 and the second roller 204 are rubber-coated rollers.

[0035] It should be noted that the structures of the first stamping mechanism 2a and the second stamping mechanism 2b in the present utility model are basically the same, but the installation positions and directions are different.

[0036] Continue to refer to Figure 5, in an embodiment of the present utility model, the second stamping mechanism 2b is equipped with an ink cleaning mechanism 3. The ink cleaning mechanism 3 includes an ink cleaning member 300, a pressing component, and a mounting bracket 301. The ink cleaning member 300 is an ink-absorbing sponge, which is disposed on the mounting bracket 301 and is in contact with two rollers in the second stamping mechanism 2b for cleaning the ink on the rollers. A connecting shaft 302 is provided on the mounting bracket 301, and both ends of the connecting shaft 302 are in up-and-down sliding fit with the U-shaped openings on the machine housing 1. The mounting bracket 301 and the ink cleaning member 300 are supported on the rollers. The pressing component is used to press the mounting bracket 301, thereby adjusting the pressing degree between the ink cleaning member 300 and the rollers in the second stamping mechanism 2b. The pressing component includes a transmission shaft 303 rotatably mounted on the machine housing 1, a plurality of cams 304 provided on the transmission shaft 303, and a third motor 305. The third motor 305 drives the transmission shaft 303 to rotate through a synchronous belt mechanism. The synchronous belt mechanism can also be replaced with a gear transmission structure, a sprocket transmission structure, etc. The cam 304 presses down the mounting bracket 301, and the transmission shaft 303 can drive the cam 304 to swing, thereby adjusting the pressing amplitude of the cam 304 on the mounting bracket 301, and further adjusting the pressing degree between the ink cleaning member 300 and the rollers in the second stamping mechanism 2b.

[0037] Continue to refer to Figure 2 , in an embodiment of the present utility model, a first guiding component 4, a second guiding component 5, a third guiding component 6, a fourth guiding component 7, a fifth guiding component 8, and a sixth guiding component 11 are further provided on the machine housing 1. The six guiding components are all channel structures composed of two upper and lower plates, which play a role in guiding the paper. The first guiding component 4 is located in front of the paper inlet 100 of the machine housing 1 and is responsible for feeding the paper. The second guiding component 5 is located between the paper inlet 100 and the second roller 204 of the first stamping mechanism 2a and is responsible for guiding the paper between the second roller 204 of the first stamping mechanism 2a and the moving component. The third guiding component 6 is located between the second roller 204 and the first roller 203 of the first stamping mechanism 2a and is responsible for guiding the paper between the first roller 203 of the first stamping mechanism 2a and the stamping wheel 201. The fourth guiding component 7 is located between the first roller 203 of the first stamping mechanism 2a and the second roller 204 of the second stamping mechanism 2b and is responsible for guiding the paper between the second roller 204 of the second stamping mechanism 2b and the moving component. The fifth guiding component 8 is located between the second roller 204 and the first roller 203 of the second stamping mechanism 2b and is responsible for guiding the paper between the first roller 203 of the second stamping mechanism 2b and the stamping wheel 201. The sixth guiding component 11 is located between the paper outlet 101 of the machine housing 1 and the first roller 203 of the second stamping mechanism 2b and is responsible for guiding the paper out of the machine.

[0038] Further refer to Figure 2, in an embodiment of the present utility model, a traction wheel assembly 9 is provided on the second guiding assembly 5. A plurality of openings are formed in both the upper and lower plates of the second guiding assembly 5. The traction wheel assembly 9 includes a driving traction wheel shaft 900, a driving traction wheel 901, a driven traction wheel shaft 902, and a driven traction wheel 903. The driving traction wheel shaft 900 is rotatably installed on the machine housing 1 and is located above the second guiding assembly 5. There are several driving traction wheels 901, all of which are arranged on the driving traction wheel shaft 900. The driving traction wheels 901 extend into the gap between the upper and lower plates of the second guiding assembly 5 through the openings of the second guiding assembly 5. The driven traction wheel shaft 902 is rotatably installed on the machine housing 1 and is located below the second guiding assembly 5. There are several driven traction wheels 903, all of which are arranged on the driving traction wheel shaft 900. The driven traction wheels 903 extend into the gap between the upper and lower plates of the second guiding assembly 5 through the openings of the second guiding assembly 5. In this way, the driving traction wheels 901 and the driven traction wheels 903 are exactly arranged opposite to each other one by one, and can clamp and convey the paper backward.

[0039] Further referring to Figure 2 , in an embodiment of the present utility model, it further includes a fourth motor 10 installed inside the machine housing 1. The fourth motor 10 drives the driving traction wheel shaft 900, the first roller 203 and the second roller 204 of the first stamping mechanism 2a, and the first roller 203 and the second roller 204 of the second stamping mechanism 2b to rotate through a transmission assembly. The transmission assembly is preferably a gear transmission assembly. In addition, a synchronous belt mechanism, a sprocket mechanism, etc. can also be used. This is a well-known technology in the field of mechanical transmission and will not be elaborated.

[0040] The working process of the present utility model is as follows: The paper enters the feeding port 100 through the first guiding assembly 4, then is first printed on the front side by the first stamping mechanism 2a, then is printed on the back side by the second stamping mechanism 2b, and finally exits the paper from the discharging port 101. Among them, after the front side of the paper is stamped by the first stamping mechanism 2a, there is ink left. When the front side of the paper passes through the second stamping mechanism 2b, it just contacts the first roller 203 and the second roller 204 of the second stamping mechanism 2b, and it is possible to leave ink on the first roller 203 and the second roller 204 of the second stamping mechanism 2b. The present utility model cleans the first roller 203 and the second roller 204 of the second stamping mechanism 2b through the ink cleaning member 300 to avoid affecting subsequent stamping.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A double-sided stamping machine, characterized in that: The invention comprises a casing (1), wherein two stamping mechanisms are arranged at the front and rear of the casing (1), which are divided into a front first stamping mechanism (2a) and a rear second stamping mechanism (2b), wherein the first stamping mechanism (2a) and the second stamping mechanism (2b) are installed upside down, one of which prints the front side of a paper, and the other of which prints the back side of a paper, and the casing (1) has a feeding port (100) corresponding to the first stamping mechanism (2a), and the casing (1) has a discharging port (101) corresponding to the second stamping mechanism (2b) at the rear side.

2. A double-sided stamping machine according to claim 1, characterized in that: The stamping mechanism comprises a stamping assembly and a first roller (203), the stamping assembly and the first roller (203) being arranged opposite to each other, the stamping assembly comprising a stamping shaft (200) and a stamping wheel (201) arranged on the stamping shaft (200), the stamping wheel (201) and the first roller (203) clamping a paper together to convey the paper, the stamping wheel (201) stamps the paper, and the stamping shaft (200) and / or the first roller (203) are driven to rotate by a power source.

3. A double-sided stamping machine according to claim 2, characterized in that: The stamping assembly further comprises a paper pressing wheel (202) arranged on the stamping shaft (200), wherein the paper pressing wheel (202) and the first roller (203) clamp and convey the paper together.

4. A double-sided stamping machine according to claim 2, characterized in that: The stamp wheel (201) and the stamp shaft (200) are axially slidingly matched, and the two are circumferentially limitedly matched so that the two do not rotate relative to each other in the circumferential direction; the stamp mechanism also includes a moving component, which adjusts the axial position of the stamp wheel (201) on the stamp shaft (200).

5. A double-sided stamping machine according to claim 4, characterized in that: The moving assembly comprises a lead screw (205), a nut seat (206) and a connecting frame (207); the lead screw (205) is driven to rotate by a power source; the nut seat (206) is screwed onto the lead screw (205); the connecting frame (207) is connected to the nut seat (206); the connecting frame (207) is used to push the stamping wheel (201) along the axial direction of the stamping shaft (200), thereby adjusting the axial position of the stamping wheel (201) on the stamping shaft (200).

6. A double-sided stamping machine according to claim 5, characterized in that: The left and right sides of the connecting frame (207) are respectively provided with a pushing portion (2070), and the stamping wheel (201) is located between the pushing portions (2070) on the left and right sides.

7. A double-sided stamping machine according to claim 2, characterized in that: The stamping wheel (201) is equipped with an inking wheel (208) which is arranged in close contact with the wheel surface.

8. A double-sided stamping machine according to claim 2, characterized in that: The stamping mechanism further comprises a second roller (204), and the second roller (204) transports the paper by rotating.

9. A double-sided stamping machine according to claim 2, characterized in that: The second stamping mechanism (2b) is equipped with an ink cleaning mechanism (3), wherein the ink cleaning mechanism (3) comprises an ink cleaning member (300), and the ink cleaning member (300) is in contact with a roller in the second stamping mechanism (2b) to clean the ink on the roller.

10. A double-sided stamping machine according to claim 9, characterized in that: The ink cleaning mechanism (3) further comprises a pressing component and a mounting frame (301); the ink cleaning member (300) is arranged on the mounting frame (301); the mounting frame (301) is slidably matched with the housing (1); the pressing component is used to press the mounting frame (301), thereby adjusting the degree of pressing between the ink cleaning member (300) and the roller in the second stamping mechanism (2b).

Images