Feeding mechanism for film printing

Abstract

The utility model relates to a film feeding mechanism, and discloses a feeding mechanism for film printing, which comprises a feeding box, a box door is rotatably mounted on the front side of the feeding box through a hinge, a groove is formed in the feeding box, and a top groove is formed in the top end of the feeding box. According to the feeding mechanism for film printing, a plurality of through holes are formed in the fixing frame of the tensioning adjusting assembly, a tensioning rod can be installed at different positions according to needs, so that the distance between the tensioning rod and a film roller is adjusted, the tensioning rod is pulled, the fixing frame can move forwards, an alignment groove is made to be separated from an alignment block, then the fixing frame is rotated to adjust the azimuth angle, and after adjustment is in place, the tensioning rod can be fixed. The alignment blocks are clamped into the alignment grooves again, it is ensured that the film rollers are in the tensioning state in the whole feeding process, the separation assembly is easy and convenient to operate, the horizontal position can be adjusted by four guide wheels in the separation assembly after second locking bolts are unscrewed, the feeding positions of the four film rollers can be effectively staggered, feeding interference is avoided, and efficient and stable guarantee is provided for film printing feeding.

Description

TECHNICAL FIELD

[0001] The utility model relates to a film feeding mechanism, in particular to a feeding mechanism for film printing. BACKGROUND

[0002] Film printing is a technology of printing graphics and texts on film materials such as plastic or polymer. Common materials include polypropylene (BOPP) film, polyester film (BOPET), nylon film (BOPA), etc. These films are thin and flexible, and have good transparency. The main process includes intaglio printing, flexographic printing, and UV ink embossing. Intaglio printing involves coating the printing plate with ink, scraping off the ink in the blank area, and then transferring the ink in the graphic area to the film through pressure. Flexographic printing uses a flexible printing plate and a mesh ink roller to transfer ink for printing. UV ink embossing has high quality and efficiency, but domestic embossing equipment generally lacks UV devices, limiting its application. Film printing is widely used in packaging, advertising, and electronic product fields. In the packaging field, it can be used for food and beverage packaging to protect products and enhance aesthetics. In the advertising field, it can be used to create advertising banners with good outdoor display effects. In the electronic product field, it can be used to manufacture protective films with personalized pattern identification. Nowadays, with the increasing awareness of environmental protection, degradable and recyclable printed film materials have attracted attention. The development of digital printing technology makes it easier to implement personalized and customized film printing services. During film printing, a feeding mechanism for film printing is needed to supply film.

[0003] Existing film printing feeding mechanisms mostly use a box with a feeding roller installed inside for film printing. During feeding, a tensioning rod is used to tighten the film to prevent it from sagging.

[0004] However, the tensioning rod in the prior art is directly fixed and installed inside the box, which cannot adjust the distance between the tensioning rod and the film roller, nor can it adjust the azimuth angle of the tensioning rod, resulting in disordered film wiring inside the box. Moreover, the existing film printing feeding mechanism does not have a separation component and is mostly directly connected to the printing machine's paper inlet, which can easily cause multiple films to be attracted and interfere with each other during actual use. SUMMARY

[0005] (I) Technical problems solved

[0006] To address the shortcomings of the prior art, the present utility model provides a film printing feeding mechanism to solve the problems mentioned in the background.

[0007] (II) Technical solutions

[0008] To achieve the above object, the utility model provides following technical scheme: a kind of feeding mechanism for film printing, including feeding box, the front side of the feeding box is rotatably installed with box door by hinge, recess is opened in the inside of the feeding box, top groove is opened in the top end of the feeding box, the back of the feeding box is provided with bearing seat, rotating shaft is rotatably installed in the inside of the feeding box by bearing seat, the outer diameter surface of the rotating shaft is opened with docking groove, the outer side of the rotating shaft is insertedly installed with limit disc, locking bolt one is arranged between the limit disc and rotating shaft, the outer side of the rotating shaft is also insertedly installed with film roller, the rear side of film roller is provided with tensioning adjusting assembly in the inside of the feeding box, the upside of top groove is provided with separation assembly in the top end of the feeding box.

[0009] Preferably, the limit disc and the inner diameter surface of the film roller are provided with protrusions adapted to the docking groove, and the horizontal center lines of the limit disc and the film roller are located on the same horizontal line.

[0010] Preferably, the bearing seat and the rotating shaft are both provided with four identical ones, and the four rotating shafts are located inside the recess.

[0011] Through the above technical scheme, when in use, the locking bolt is screwed until the locking bolt one is completely loosened, the limit disc is pulled out of the rotating shaft, then the protrusions on the film roller are inserted into the docking groove on the rotating shaft, the position of the limit disc on the rear side of the film roller is adjusted, when the position adjustment of the limit disc on the rear side of the film roller is completed, the limit disc on the front side of the film roller is inserted into the rotating shaft, after the position is adjusted, the locking bolt is screwed until the locking bolt one is completely locked, and the installation of the film roller is completed.

[0012] Preferably, the tensioning adjusting assembly includes a fixing sleeve, a fixing disc, a fixing frame, a through hole, a tensioning rod, a locking nut, a positioning block, a spring and a positioning groove, the fixing sleeve is fixedly connected with the bearing seat by a bolt, one side of the fixing sleeve away from the bearing seat is fixedly installed with the fixing disc, the fixing sleeve is sleeved with the fixing frame on the outside, the front side of the fixing frame is provided with the through hole, the tensioning rod is insertedly installed in the through hole on the front side of the fixing frame, one end of the tensioning rod close to the bearing seat is provided with the locking nut, the spring is arranged between the fixing frame and the fixing disc, the fixing sleeve is fixedly installed with the positioning block on the front side, one side of the fixing frame close to the fixing sleeve is provided with the positioning groove adapted to the positioning block.

[0013] Preferably, the number of the positioning block and the positioning groove is the same, the positioning block and the positioning groove are annularly distributed about the center line of the rotating shaft, the positioning block and the positioning groove are insertedly connected, and the two ends of the spring respectively abut against the fixing frame and the fixing frame.

[0014] Through the technical scheme, in the process of use, the multiple through holes on the fixing frame can install the tensioning rods, the tensioning rods installed through the through holes at different positions can realize distance adjustment between the tensioning rods and the film roller, when the distance adjustment between the tensioning rods and the film roller is completed, the tensioning rods are pulled, the tensioning rods can pull the fixing frame to move forward, the alignment grooves in the fixing frame are completely separated from the alignment blocks, at this time, the fixing frame can be rotated, after adjustment, the alignment grooves in the fixing frame are again clamped into the alignment blocks, the adjustment of the azimuth angle of the tensioning rods can be realized, and it can be ensured that the film roller is always in a tensioning state in the process of feeding.

[0015] Preferably, the separation assembly comprises a separation frame, a separation strip, a sliding groove, a sliding block, a locking bolt two, a guide wheel and an adaptive slot, the separation frame is fixedly installed at the top end of the feeding box, the separation frame is internally and equidistantly installed with the separation strips, the inner side of the separation frame and the outer side of the separation strip are both provided with the sliding groove and the adaptive slot, the sliding block is slidably installed in the sliding groove, the guide wheel is rotatably installed on the outer side of the sliding block, and the locking bolt two is arranged at the top end of the sliding block.

[0016] Preferably, the sliding block, the locking bolt two and the guide wheel are all provided with the same four groups, the number of the sliding block and the locking bolt two is twice that of the guide wheel, the sliding block and the locking bolt two are symmetrically distributed about the vertical center line of the guide wheel, the locking bolt two is in sliding connection with the adaptive slot, and the adaptive slot is in intercommunication with the sliding groove.

[0017] Through the technical scheme, the locking bolt two on the sliding block is screwed, the guide wheel can be pulled to move horizontally in the separation frame, the horizontal position of the guide wheel can be adjusted, when the position adjustment of the guide wheel is completed, the guide wheel can be fixed by again screwing the locking bolt two, the feeding positions of the four film rollers can be staggered, and mutual interference in the feeding process can be avoided.

[0018] Compared with the prior art, the present application provides a feeding mechanism for film printing, which has the following beneficial effects:

[0019] 1. The feeding mechanism for film printing is provided with a tensioning adjustment assembly, a plurality of through holes are arranged on the fixing frame, and the through holes can be used for installing the tensioning rods, the distance between the tensioning rods and the film roller can be adjusted by installing the tensioning rods in the through holes at different positions, the tensioning rods are pulled, the fixing frame is moved forward, the alignment grooves in the fixing frame are completely separated from the alignment blocks, at this time, the fixing frame can be rotated, after adjustment, the alignment grooves in the fixing frame are again clamped into the alignment blocks, the adjustment of the azimuth angle of the tensioning rods is realized, and it can be ensured that the film roller is always in a tensioning state in the feeding process.

[0020] 2、The film printing feeding mechanism is further provided with a separation assembly, four guide wheels in the separation assembly can be adjusted in horizontal position by only loosening locking bolts two, the four guide wheels can stagger the feeding position of the four film rollers, avoid mutual interference in the feeding process, and improve practicability. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0022] Figure 2 It is a feeding box internal structure schematic view of the utility model Figure 1 ;

[0023] Figure 3 It is a feeding box internal structure schematic view of the utility model Figure 2 ;

[0024] Figure 4 It is a three-dimensional structure schematic view of the utility model tension adjusting assembly Figure 1 ;

[0025] Figure 2 It is a three-dimensional structure schematic view of the utility model tension adjusting assembly Figure 6 ;

[0026] Figure 7 It is a sectional structure schematic view of the utility model tension adjusting assembly;

[0027] Figure 8 It is a tension rod mounting structure schematic view of the utility model;

[0028] Figure 9 It is a three-dimensional structure schematic view of the utility model separation assembly;

[0029] Figures 1-9 It is a guide wheel mounting structure schematic view of the utility model.

[0030] Wherein: 1, feeding box; 2, box door; 3, recess; 4, top groove; 5, bearing seat; 6, rotating shaft; 7, butt joint groove; 8, limiting disc; 9, locking bolt one; 10, film roller; 11, tension adjusting assembly; 1101, fixed sleeve; 1102, fixed disc; 1103, fixed frame; 1104, through hole; 1105, tension rod; 1106, locking nut; 1107, alignment block; 1108, spring; 1109, alignment groove; 12, separation assembly; 1201, separation frame; 1202, separation strip; 1203, sliding slot; 1204, sliding block; 1205, locking bolt two; 1206, guide wheel; 1207, adaptive groove; 13, protruding block. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1:

[0033] like Figures 2-9 As shown, the present invention provides a feeding mechanism for film printing, including a feeding box 1. A box door 2 is hinged and rotatably mounted on the front side of the feeding box 1. A groove 3 is provided inside the feeding box 1, and a top groove 4 is provided at the top of the feeding box 1. A bearing seat 5 is provided on the back of the feeding box 1. A rotating shaft 6 is rotatably mounted inside the feeding box 1 via the bearing seat 5. A mating groove 7 is provided on the outer diameter surface of the rotating shaft 6. A limiting plate 8 is inserted and mounted on the outer side of the rotating shaft 6. A locking bolt 9 is provided between the limiting plate 8 and the rotating shaft 6. A film roller 10 is also inserted and mounted on the outer side of the rotating shaft 6. A tension adjustment component 11 is provided inside the feeding box 1 behind the film roller 10. A separating component 12 is provided at the top of the feeding box 1 above the top groove 4. The limiting plate 8 and the inner side of the film roller 10 are connected to the limiting plate 8. The radial surface is provided with protrusions 13 that are adapted to the docking groove 7. The horizontal center lines of the limiting plate 8 and the film roller 10 are located on the same horizontal line. The bearing seat 5 and the rotating shaft 6 are provided with four identical ones. All four rotating shafts 6 are located inside the groove 3. The advantage is that, in use, when tightening the locking bolt 9 until the locking bolt 9 is completely loose, the limiting plate 8 is pulled out from the rotating shaft 6. Then, the protrusions 13 on the film roller 10 are aligned with the docking groove 7 on the rotating shaft 6 and inserted. The position of the limiting plate 8 on the rear side of the film roller 10 is adjusted. After the position of the limiting plate 8 on the rear side of the film roller 10 is adjusted, the limiting plate 8 on the front side of the film roller 10 is aligned with the rotating shaft 6 and inserted. After the position is adjusted, the locking bolt 9 is tightened until the locking bolt 9 is completely locked, and the installation of the film roller 10 is completed.

[0034] Example 2:

[0035] like ​ As shown, this is an improvement on the previous embodiment.

[0036] Specifically, the tension adjusting assembly 11 comprises a fixing sleeve 1101, a fixing disc 1102, a fixing frame 1103, a through hole 1104, a tension rod 1105, a locking nut 1106, a positioning block 1107, a spring 1108 and a positioning groove 1109. The fixing sleeve 1101 is fixedly connected with the bearing seat 5 through bolts. The fixing disc 1102 is fixedly installed on the side of the fixing sleeve 1101 away from the bearing seat 5. The fixing frame 1103 is installed on the outer side of the fixing sleeve 1101 in a sleeved manner. The through hole 1104 is formed in the front side of the fixing frame 1103. The tension rod 1105 is insertedly installed on the front side of the fixing frame 1103 through the through hole 1104. The locking nut 1106 is arranged at the end of the tension rod 1105 close to the bearing seat 5. The spring 1108 is arranged between the fixing frame 1103 and the fixing disc 1102. The positioning block 1107 is fixedly installed on the front side of the fixing sleeve 1101. The positioning groove 1109 is formed in the side of the fixing frame 1103 close to the fixing sleeve 1101 and is adapted to the positioning block 1107. The number of the positioning blocks 1107 is the same as that of the positioning grooves 1109. The positioning blocks 1107 and the positioning grooves 1109 are annularly distributed about the center line of the rotating shaft 6. The positioning blocks 1107 and the positioning grooves 1109 are in plug-in connection. The two ends of the spring 1108 abut against the fixing frame 1103 and the fixing frame 1103 respectively. The advantage is that the plurality of through holes 1104 on the fixing frame 1103 can install the tension rod 1105 in the process of use. The distance between the tension rod 1105 and the film roller 10 can be adjusted through the tension rods 1105 installed in different position through holes 1104. When the distance between the tension rod 1105 and the film roller 10 is adjusted, the tension rod 1105 can pull the fixing frame 1103 to move forward. The positioning grooves 1109 in the fixing frame 1103 are completely separated from the positioning blocks 1107. At this time, the fixing frame 1103 can be rotated. After adjustment, the positioning grooves 1109 in the fixing frame 1103 are clamped into the positioning blocks 1107 again. The azimuth angle of the tension rod 1105 can be adjusted. The film roller 10 can be ensured to be in a tensioned state in the process of feeding.

[0037] Specifically, the partition assembly 12 comprises a partition frame 1201, partition strips 1202, sliding grooves 1203, sliding blocks 1204, locking bolts two 1205, guide wheels 1206 and adaptive grooves 1207. The partition frame 1201 is fixedly installed at the top end of the feeding box 1. The partition frame 1201 is internally and equidistantly installed with the partition strips 1202. The inner side of the partition frame 1201 and the outer side of the partition strips 1202 are both provided with the sliding grooves 1203 and the adaptive grooves 1207. The sliding blocks 1204 are slidably installed in the sliding grooves 1203. The guide wheels 1206 are rotatably installed at the outer side of the sliding blocks 1204. The sliding blocks 1204 are provided with the locking bolts two 1205 at the top end. The sliding blocks 1204, the locking bolts two 1205 and the guide wheels 1206 are all provided with the same four groups. The number of the sliding blocks 1204 and the locking bolts two 1205 is twice that of the guide wheels 1206. The sliding blocks 1204 and the locking bolts two 1205 are symmetrically distributed about the vertical center line of the guide wheels 1206. The locking bolts two 1205 and the adaptive grooves 1207 are in sliding connection. The adaptive grooves 1207 and the sliding grooves 1203 are interconnected. The advantage is that the locking bolts two 1205 on the sliding blocks 1204 can be screwed to pull the guide wheels 1206 to move horizontally inside the partition frame 1201 to adjust the horizontal position of the guide wheels 1206. When the position adjustment of the guide wheels 1206 is completed, the locking bolts two 1205 can be screwed again to fix the guide wheels 1206. The feeding positions of the four film rollers 10 can be staggered to avoid mutual interference during the feeding process.

[0038] Working principle: in use, twist locking bolt one 9 until locking bolt one 9 is completely loose, the limiting disc 8 is extracted from the rotating shaft 6, then the protrusion 13 on the film roller 10 is inserted into the butt joint groove 7 on the rotating shaft 6, the position of the limiting disc 8 at the rear side of the film roller 10 is adjusted, when the position adjustment of the limiting disc 8 at the rear side of the film roller 10 is completed, the limiting disc 8 at the front side of the film roller 10 is inserted into the rotating shaft 6, after the position adjustment, twist locking bolt one 9 until locking bolt one 9 is completely locked, the installation of the film roller 10 is completed, in the process of use, a plurality of through holes 1104 on the fixed frame 1103 can install the tensioning rod 1105, the distance between the tensioning rod 1105 and the film roller 10 can be adjusted by the tensioning rod 1105 installed through different position through holes 1104, when the distance adjustment between the tensioning rod 1105 and the film roller 10 is completed, pull the tensioning rod 1105, the tensioning rod 1105 can pull the fixed frame 1103 to move forward, the alignment groove 1109 in the fixed frame 1103 is completely separated from the alignment block 1107, at this time, the fixed frame 1103 can be rotated, after adjustment, the alignment groove 1109 in the fixed frame 1103 is inserted into the alignment block 1107 again, the azimuth angle adjustment of the tensioning rod 1105 can be realized, the film roller 10 can be ensured to be in the tensioning state in the process of feeding, twist the locking bolt two 1205 on the sliding block 1204, the guide wheel 1206 can be pulled to move horizontally in the separation frame 1201, the horizontal position of the guide wheel 1206 can be adjusted, when the position adjustment of the guide wheel 1206 is completed, twist the locking bolt two 1205 again to fix the guide wheel 1206, the feeding positions of the four film rollers 10 can be staggered, the mutual interference in the feeding process can be avoided.

[0039] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for film printing, comprising a feeding box (1), characterized in that: The front side of the feeding box (1) is hingedly installed with a box door (2), the inside of the feeding box (1) is provided with a groove (3), the top end of the feeding box (1) is provided with a top groove (4), the back of the feeding box (1) is provided with a bearing seat (5), the inside of the feeding box (1) is rotatably installed with a rotating shaft (6) through the bearing seat (5), the outer diameter surface of the rotating shaft (6) is provided with a butt joint groove (7), the outer side of the rotating shaft (6) is telescopically installed with a limiting disc (8), the limiting disc (8) and the rotating shaft (6) are provided with a locking bolt (9), the outer side of the rotating shaft (6) is also telescopically installed with a film roller (10), the inside of the feeding box (1) is provided with a tensioning adjusting assembly (11) at the back of the film roller (10), and the top end of the feeding box (1) is provided with a separation assembly (12) at the upside of the top groove (4).

2. The feeding mechanism for film printing according to claim 1, characterized in that: The inner diameter surfaces of the limiting disc (8) and the film roller (10) are provided with protrusions (13) matched with the butt joint groove (7), and the horizontal center lines of the limiting disc (8) and the film roller (10) are located on the same horizontal line.

3. The feeding mechanism for film printing according to claim 1, characterized in that: The bearing seat (5) and the rotating shaft (6) are all provided with four, and the four rotating shafts (6) are all located in the inside of the groove (3).

4. The feeding mechanism for film printing according to claim 1, characterized in that: The tensioning adjusting assembly (11) comprises a fixing sleeve (1101), a fixing disc (1102), a fixing frame (1103), a through hole (1104), a tensioning rod (1105), a locking nut (1106), a positioning block (1107), a spring (1108) and a positioning groove (1109), the fixing sleeve (1101) is fixedly connected with the bearing seat (5) through a bolt, one side of the fixing sleeve (1101) away from the bearing seat (5) is fixedly installed with the fixing disc (1102), the outer side of the fixing sleeve (1101) is telescopically installed with the fixing frame (1103), the front side of the fixing frame (1103) is provided with the through hole (1104), the front side of the fixing frame (1103) is telescopically installed with the tensioning rod (1105) through the through hole (1104), one end of the tensioning rod (1105) close to the bearing seat (5) is provided with the locking nut (1106), the spring (1108) is arranged between the fixing frame (1103) and the fixing disc (1102), the front side of the fixing sleeve (1101) is fixedly installed with the positioning block (1107), and one side of the fixing frame (1103) close to the fixing sleeve (1101) is provided with the positioning groove (1109) matched with the positioning block (1107).

5. The film printing feeding mechanism according to claim 4, wherein: The number of the positioning block (1107) and the positioning groove (1109) is the same, the positioning block (1107) and the positioning groove (1109) are annularly distributed about the center line of the rotating shaft (6), the positioning block (1107) and the positioning groove (1109) are telescopically connected, and the two ends of the spring (1108) abut against the fixing frame (1103) and the fixing frame (1103) respectively.

6. The feeding mechanism for film printing according to claim 1, characterized in that: The separating assembly (12) comprises a separating frame (1201), separating strips (1202), sliding grooves (1203), sliding blocks (1204), locking bolts two (1205), guide wheels (1206) and adaptive grooves (1207), the separating frame (1201) is fixedly installed at the top end of the feeding box (1), the separating frame (1201) is internally and equidistantly installed with separating strips (1202), the inner side of the separating frame (1201) and the outer side of the separating strips (1202) are both provided with sliding grooves (1203) and adaptive grooves (1207), the inner side of the sliding groove (1203) is slidably installed with a sliding block (1204), the outer side of the sliding block (1204) is rotatably installed with a guide wheel (1206), and the top end of the sliding block (1204) is provided with a locking bolt two (1205).

7. The film printing feeding mechanism according to claim 6, characterized in that: The sliding blocks (1204), the locking bolts two (1205) and the guide wheels (1206) are all provided with the same four groups, the number of the sliding blocks (1204) and the locking bolts two (1205) is twice that of the guide wheels (1206), the sliding blocks (1204) and the locking bolts two (1205) are symmetrically distributed about the vertical center line of the guide wheels (1206), the locking bolts two (1205) are slidably connected with the adaptive grooves (1207), and the adaptive grooves (1207) and the sliding grooves (1203) are interconnected.

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