Transverse drawing film coating transfer printing tool
By replacing the waste pulley and belt core assembly in the coating transfer tool with an axially plugged overlapping connection, the problem of inconvenient gripping was solved, resulting in a shorter transfer tool length and more convenient film belt operation.
Patent Information
- Application Number
- CN202520513975.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-03-24
AI Technical Summary
In existing coating transfer tools, the radial layout of the waste pulley and belt core assembly makes it inconvenient to hold and results in a long extension length.
The connection method of the waste pulley and belt core assembly is changed from radial to axial insertion and stacking. The feeding reel and the winding reel are axially inserted and connected, and the ribs and grooves are used for insertion and cooperation. Combined with the elastic element, synchronous rotation is achieved, reducing the overall extension length.
It effectively reduces the extension length of the transfer tool, making it easier to hold and operate, improving the smooth release and recycling efficiency of the film belt, and simplifying the assembly and disassembly process.
Smart Images

Figure CN223686164U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of a transfer tool, in particular to a horizontal pull film transfer tool. BACKGROUND
[0002] The film transfer tool is a tool for transferring the film on the tape to the surface of other products that need to be covered, such as correction tape commonly used in daily life; the existing film transfer tool generally includes a shell, a transfer head located on the shell, and a tape core assembly located inside the shell, etc., the tape core assembly is wound with a film tape for transfer, and the film on the film tape is transferred to the surface of other objects through the transfer head; the film tape after the tape core assembly releases the transfer film needs to be collected, specifically through a waste tape wheel, the waste tape wheel and the wheel body of the tape core assembly for winding the film tape are radially arranged in the plane extending radially of the wheel body; the above-mentioned layout of the waste tape wheel and the wheel body of the tape core assembly has certain deficiencies: since the waste tape wheel and the wheel body of the tape core assembly for winding the unused film tape are distributed in the plane extending radially of the wheel body, a certain length needs to be extended, which is inconvenient to hold during use. CONTENT OF THE UTILITY MODEL
[0003] In view of the above-mentioned deficiencies of the prior art, the present application provides a horizontal pull film transfer tool which can reduce the extension length and is more convenient to hold.
[0004] In order to solve the above-mentioned technical problems, the technical scheme adopted by the present application is as follows: a horizontal pull film transfer tool, the structure of the transfer tool includes a shell and a film tape conveying assembly, the film tape conveying assembly is located in the shell, and the shell is provided with a transfer head; a rotating shaft extending in the thickness direction is arranged in the shell, the film tape conveying assembly is rotatably sleeved on the rotating shaft, the film tape conveying assembly includes a feeding spool (for winding and feeding the unused film tape) and a winding spool (for winding and recycling the waste film tape after transfer), and the feeding spool and the winding spool are axially inserted and connected and can synchronously rotate circumferentially relative to the shell.
[0005] By adopting the above-mentioned structure, the connection mode of the waste tape wheel and the tape core assembly in the existing film tape conveying assembly is adjusted, and the two are axially inserted and overlapped, so that the original radial extension length is converted into an axial up-down overlapping mode, thereby effectively reducing the extension length of the whole transfer tool and making it more convenient to hold and use; in addition, the feeding spool (for winding and feeding the unused film tape) and the winding spool (for winding and recycling the waste film tape after transfer) are connected in an axial insertion mode, which is convenient for assembly and disassembly, and the film tape wheel can be replaced and assembled; and the feeding spool and the winding spool can synchronously rotate circumferentially during operation, which facilitates smooth release and recovery of the film tape.
[0006] Further, the shaft of the supply reel extends axially with a sleeve part, the outer wall of the sleeve part is provided with a protruding rib, the reel is provided with a sleeve hole, the inner wall of the sleeve hole is provided with a groove for inserting the protruding rib; by the insertion of the protruding rib and the groove, the supply reel and the reel are axially inserted and connected, so that they are axially overlapped, the length is shortened, and the connection is more convenient to operate.
[0007] Further, the lower part of the sleeve part is provided with an elastic member, the elastic member is used for elastically sleeving the core ring of the film strip; the protruding rib is integrally provided with the elastic member; by the above structure, the core ring of the unused film strip is sleeved on the outside of the elastic member, and the two are connected by the elastic thrust force; during the rotation of the film strip, the elastic thrust force makes the elastic member and the sleeved core ring relative to each other, preventing the film strip from being retracted during operation; in addition, the elastic member and the protruding rib are integrally provided, so as to ensure that the core ring of the reel sleeved with the protruding rib and the core ring sleeved with the elastic member are synchronously operated.
[0008] Further, the number of the protruding ribs is not more than the number of the grooves; by the insertion of the protruding rib and the groove, the number of the grooves is more, and the insertion is more convenient, without considering the direction of the insertion.
[0009] Further, the protruding rib is provided with three protruding ribs, the length direction extends along the axial direction of the sleeve part, and the three protruding ribs are equidistantly distributed along the circumference of the sleeve part; by the above structure, three stable insertion sites are formed, avoiding the slipping during the synchronous rotation of the supply reel and the reel.
[0010] Further, the groove is provided with a plurality of grooves, and the plurality of grooves are uniformly distributed along the inner circumferential wall of the sleeve hole; by the above structure, the protruding rib can be more conveniently matched, without considering the direction of the insertion, and the plurality of grooves can be quickly matched and connected with the protruding rib inserted at any angle.
[0011] Further, one end of the groove is in an open shape for inserting the protruding rib, and the other end is provided with a stop wall for abutting against the end of the protruding rib; by the above structure, the protruding rib can be inserted into the groove along the axial direction through the opening, and the stop wall can limit the distance between the supply reel and the reel in the axial direction, avoiding the friction during the rotation or hindering the smooth release of the film strip.
[0012] Further, the width of the convex rib gradually narrows towards the direction of the winding shaft; by adopting this structure, when the convex rib and the groove are inserted, the width of the convex rib near the groove side is narrower, which is more conducive to quickly entering the groove and achieving insertion.
[0013] Further, the outer diameter of the core ring of the feeding shaft is smaller than the outer diameter of the core ring of the winding shaft; by this arrangement, when the feeding shaft and the winding shaft rotate synchronously, the linear speed adjustment of the two can be achieved, so that the feeding shaft and the winding shaft run more stably synchronously.
[0014] Further, the shell is provided with a film belt guide column between the film belt conveying assembly and the transfer head, the film belt guide column comprises a first film belt guide column and a second film belt guide column, the center line of the first film belt guide column and the second film belt guide column is on the same straight line as the center line of the transfer head; by this structure, the released film belt and the wound film belt are respectively released and wound through the two guide columns, and the above-mentioned same straight line arrangement can make the two guide columns more compact, not occupying too much in the width direction, and also can make the film belt guided to the transfer head in a shorter distance. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The structure schematic diagram of the explosion view of the transverse pulling film transfer device.
[0016] Figure 2 The structure schematic diagram of the first view of the feeding shaft.
[0017] Figure 3 The structure schematic diagram of the second view of the feeding shaft.
[0018] Figure 4 The structure schematic diagram of the first view of the winding shaft.
[0019] Figure 5 The structure schematic diagram of the second view of the winding shaft.
[0020] Figure 6 The structure schematic diagram of the cooperation between the feeding shaft and the shell.
[0021] Figure 7 The structure schematic diagram of the shell.
[0022] Figure 8 The structure schematic diagram of the axial insertion of the feeding shaft and the winding shaft.
[0023] Figure 9 The structure schematic diagram of the transverse pulling film transfer device in the non-use state.
[0024] Figure 10The application is a structure diagram of a cross-drawing film transfer device in use.
[0025] As shown in the drawings: 1. housing, 101. rotating shaft, 102. first housing, 103. second housing, 2. film tape conveying assembly, 201. supply reel, 202. winding reel, 203. sleeve part, 204. convex rib, 205. sleeve hole, 206. groove, 207. stop wall, 208. wheel disc, 209. elastic member, 3. transfer head, 4. film tape, 5. film tape guide column, 6. push piece, 7. pawl, 8. ratchet wheel. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the application will be described clearly and completely below in conjunction with the embodiments and drawings. Obviously, the described embodiments are only preferred embodiments, but not all embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application;
[0027] In addition, it should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be another intermediate component fixed by the intermediate component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be another intermediate component. When a component is referred to as being "provided" to another component, it can be directly provided on the other component or there can be another intermediate component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only; the front end of the application is the end where the tip is in the use state, and the end where the pressing part is located is the rear end. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the application belongs. The terms used in the specification of the application herein are only for the purpose of describing the specific embodiments and are not intended to limit the application. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0028] As shown in the drawings: 1. housing, 101. rotating shaft, 102. first housing, 103. second housing, 2. film tape conveying assembly, 201. supply reel, 202. winding reel, 203. sleeve part, 204. convex rib, 205. sleeve hole, 206. groove, 207. stop wall, 208. wheel disc, 209. elastic member, 3. transfer head, 4. film tape, 5. film tape guide column, 6. push piece, 7. pawl, 8. ratchet wheel. Figures 1-10A horizontal pull film transfer device is provided for the present application, and the structure of the transfer device comprises a shell 1 and a film tape conveying assembly 2, the film tape conveying assembly 2 is located in the shell 1, and the shell 1 is provided with a transfer head 3; the shell 1 is provided with a rotating shaft 101 extending in the thickness direction, and the film tape conveying assembly 2 is rotatably sleeved on the rotating shaft 101, the film tape conveying assembly 2 comprises a feeding spool 201 (for winding and feeding of unused film tape 4) and a winding spool 202 (for winding and recycling of waste film tape after transfer, which can also be called a waste tape wheel), the feeding spool 201 and the winding spool 202 are axially inserted and connected and can synchronously rotate circumferentially relative to the shell 1; specifically, the shell 1 of the present application comprises a first shell 102 and a second shell 103, the first shell 102 and the second shell 103 are inserted and matched with each other along the thickness direction by the insertion posts and insertion holes provided in the shell 1 to form a complete shell, which is a conventional insertion and matching mode and does not need to be described in detail; the feeding spool 201 of the present application has a core ring for winding of unused film tape 4, and the winding spool 202 is also provided with a core ring for winding of used film tape 4; the transfer head 3 of the present application is provided with a groove structure for placing the film tape 4, and the side surface of the film tape 4 in the thickness direction is in contact with the groove to guide the film tape 4 to be released from the feeding spool and wound on the winding spool; the extension direction of the bottom wall width of the groove is perpendicular to the axial extension direction of the feeding spool 201 and the winding spool 202, or in other words, the width extension direction of the film tape 4 extending from the feeding spool 201 is perpendicular to the width extension direction of the bottom wall of the groove, so the film tape 4 needs to be twisted at an angle before entering the groove to realize the fit with the groove; as shown in Figs. Figure 6 、 9 -10, left and right side walls are further provided on the left and right sides of the bottom wall width of the groove to limit the left and right of the film tape 4 in the width direction and avoid deviation of the film tape 4.
[0029] With the above structure, the connection mode of the waste tape wheel and the core assembly in the existing film tape conveying assembly is adjusted in the present application, and the two are axially inserted and stacked, so that the original radial extension length is converted to an axial up-down stacking mode, thereby effectively reducing the extension length of the whole transfer device and making it more convenient to hold and use; in addition, the feeding spool (for winding and feeding of unused film tape) and the winding spool (for winding and recycling of waste film tape after transfer) are connected in an axial insertion mode, which is convenient for assembly and disassembly, and the film tape wheel can be replaced and assembled; and the feeding spool and the winding spool can synchronously rotate circumferentially during operation, which facilitates smooth release and recycling of the film tape.
[0030] As shown in Figs. Figures 1-2 , 4-6 and Figure 8As shown in the drawings, the shaft of the supply reel 201 extends axially with a sleeve part 203, the outer wall of the sleeve part 203 is provided with a protruding rib 204, the corresponding reel 202 is provided with a sleeve hole 205, the inner wall of the sleeve hole 205 is provided with a groove 206 which is inserted with the protruding rib 204; specifically, the sleeve part 203 can be a cylindrical structure, the length extension direction of the protruding rib 204 is consistent with the axial extension direction of the sleeve part 203, and the thickness extension direction of the protruding rib 204 extends along the radial direction of the sleeve part 203; for details, please refer to Figure 2 and Figure 6 As shown in the drawings; with this structure, the protruding rib 204 and the groove 206 are inserted and matched to realize the axial insertion connection of the supply reel 201 and the reel 202, so that the two are overlapped in the axial direction, the length is shortened, and this connection method is more convenient to operate.
[0031] As shown in the drawings Figures 1-2 , Figure 6 and Figure 8 As shown in the drawings, the lower part of the sleeve part 203 is provided with an elastic member 209, which is used for elastically sleeving with the core ring of the unused film tape 4 (used for winding the unused film tape); the protruding rib 204 is integrally provided with the elastic member 209; specifically, the elastic member 209 can be composed of three arc-shaped elastic pieces which are separated from each other and extend outward along the outer wall of the lower part of the sleeve part 203 (for details, please refer to Figure 2 As shown in the drawings, one end of the arc-shaped elastic piece is fixedly connected to the outer peripheral wall of the sleeve part 203, and the other end is a free end to realize elastic deformation), so when the core ring is sleeved on the outside of the elastic member 209, the two form an elastic interference fit, and the two are connected to each other by an elastic pushing force. During the running process or stoppage of the film tape 4, the elastic pushing force makes the elastic member 209 and the core ring sleeved thereon have a relative slipping action, preventing the film tape from being withdrawn and affecting use; in addition, the elastic member 209 and the protruding rib 204 are integrally provided, specifically, the bottom of the protruding rib 204 is connected to the elastic member 209 and the inner wall in the length direction thereof and the outer wall of the sleeve part 203; this integral arrangement is to ensure that the core ring on the reel 202 sleeved with the protruding rib 204 and the core ring on the supply reel 201 keep synchronous operation with each other, so that the unwinding and recovery of the film tape 4 are smoothly completed.
[0032] As an example, the number of the protruding ribs 204 is not more than the number of the grooves 206; with this structure, when the protruding rib 204 and the groove 206 are inserted, the number of the grooves 206 is more than that of the protruding ribs 204, which is more convenient for insertion and does not need to consider the direction of insertion too much.
[0033] As an example, see attached Figure 2 and 6 As shown, the present application provides three ribs 204, which extend along the axial direction of the fitting part 203 in the length direction, and the three ribs 204 are equidistantly distributed along the circumference of the fitting part 203. With this structure, three stable insertion points are formed to avoid slippage during the synchronous rotation of the feeding reel 201 and the winding reel 202.
[0034] As attached Figures 4-5 As shown, the groove 206 described in this application is provided in multiple ways, and the multiple grooves 206 are evenly distributed along the inner peripheral wall of the sleeve hole 205. With this structure, it can be more convenient to adapt to the protruding rib, without having to consider the insertion position too much. The arrangement of multiple grooves 206 can quickly adapt and connect with the protruding rib inserted at any angle.
[0035] As attached Figures 4-5 As shown, one end of the groove 206 described in this application is open (the opening is close to the insertion end of the rib for easy axial insertion) for insertion with the rib 204, and the other end is provided with a stop wall 207 (i.e., axially blocked at this end). The stop wall 207 is used to abut against the end of the rib 204 (i.e., the insertion end). With this structure, the rib 204 can be easily inserted into the groove 206 along the axial direction through the opening, while the stop wall 207 can limit the axial distance between the feed roll 201 and the take-up roll 202, avoiding friction during rotation due to the axial distance between the two being too close, or hindering the smooth release and winding of the film belt 4. The position after insertion is based on the spacing at which the film belt 4 can be smoothly released and wound without affecting its use.
[0036] As attached Figure 2 and Figure 6 As shown, the width of the rib 204 described in this application gradually narrows towards the take-up reel 202; specifically, from the attached diagram... Figure 2 and Figure 6 As shown, the rib 204 used in this example has a large width near the bottom and gradually narrows towards the winding shaft 202, forming a tapered structure. With this structure, when the rib and the groove 206 are inserted, the rib 204 on the side near the groove 206 is narrower, which makes it easier to quickly enter the groove 206 and achieve insertion.
[0037] As attached Figure 1 , Figure 8 As shown, the outer diameter of the core loop (for winding the unused portion of the film tape 4) of the feed reel 201 described in this application is smaller than the outer diameter of the core loop (for winding the used portion of the film tape 4) of the take-up reel 202; as an example, such as Figure 8As shown, the outer diameter of the coil formed after winding the unused film tape 4 is also smaller than the outer diameter of the core coil of the take-up reel 202 without winding the used film tape 4 at this time. With this structure, the film tape 4 can be arranged in this way, and during the synchronous rotation of the supply reel 201 and the take-up reel 202, the linear speed adjustment of the two can be realized, so that the synchronous operation of the supply reel 201 and the take-up reel 202 is more stable.
[0038] As shown in the accompanying drawings, Figure 1 and Figure 6 As shown, the shell 1 described in the present application is provided with a film tape guide column 5 between the film tape conveying assembly 2 and the transfer head 3. The film tape guide column 5 includes a first film tape guide column 501 and a second film tape guide column 502, and the axis line of the first film tape guide column 501 and the second film tape guide column 502 is on the same straight line as the center line of the transfer head 3 (specifically, the center line of the transfer head 3 here refers to the middle line of the width of the bottom wall of the groove accommodating the film tape 4); with this structure, the released film tape 4 and the wound film tape 4 are released and wound through the two guide columns respectively, and the above-mentioned arrangement on the same straight line can make the two guide columns more compact in the width direction without occupying too much space, and also make the film tape 4 be guided to the transfer head 3 in a shorter distance.
[0039] As shown in the accompanying drawings, Figure 1 , Figure 6 , Figures 9-10 As shown, the shell 1 described in the present application is provided with a dial piece 6 outside the transfer head 3, which can be flipped relative to the transfer head 3 to cover and expose the transfer head 3 during the flipping process of the dial piece 6 (specifically, the dial piece 6 covers the side of the film tape 4 out of the transfer head 3, i.e. the side of the film tape 4 on which the coating film has not been used); specifically, as shown in the accompanying drawings, Figure 1 One end of the dial piece 6 is provided with a pair of rotating shafts, and the head of the shell 1 is provided with a pair of shaft holes, and the rotating shafts are rotatably fitted in the shaft holes, so as to realize the rotational connection between the dial piece 6 and the shell 1; with this flipable dial piece 6, when the dial piece 6 is flipped to the side of the transfer head 3, the transfer head 3 can be covered to protect the film tape 4 out of the transfer head 3, avoiding damage and scratching of the film tape 4 in the non-use state, as shown in the accompanying drawings Figure 6 and Figure 9 When flipped to the side away from the transfer head 3, the transfer head 3 can be exposed to realize the use function, as shown in the accompanying drawings Figure 10 The dial piece 6 and the shell 1 are rotatably connected to each other, so that the dial piece 6 does not need to be completely pulled out during use, and is not easy to be lost.
[0040] As shown in the attached drawings, a wheel 208 is provided at one end of the feed reel 201 away from the take-up reel 202. A pawl 7 is provided on the wheel 208, and a ratchet 8 is provided inside the corresponding housing 1. The pawl 7 is used to engage with the ratchet 8. Specifically, the ratchet 8 is located on the inner bottom wall of the first housing 102. The ratchet 8 can be a ring of ratchet teeth integrally formed with the first housing 102. The extending direction of the ratchet teeth on the ratchet 8 is opposite to the extending direction of the pawl 7, as detailed in the attached drawings. Figure 1 , Figure 3 and Figure 7 As shown, in this example, the ratchet teeth and pawl 7 of the ratchet 8 extend relative to each other along the axial direction of the rotating shaft 101, thus achieving mutual engagement. With this structure, during the unwinding process of the feed roll 201, the wheel 208 can rotate relative to the ratchet 8, and the pawl 7 will not be restricted by the ratchet teeth on the ratchet 8 during this process. However, if the feed roll 201 rotates in the opposite direction, the pawl 7 on it will abut against the ratchet teeth on the ratchet 8, thereby achieving circumferential positioning of the pawl 7 and the ratchet 8. This structure can prevent the roll from reversing during use, which would affect the release or rewinding of the film belt 4.
[0041] The working principle and process of this transverse coating transfer device are as follows: First, a feed reel and a take-up reel wound with film tape are axially fitted and inserted into the rotating shaft inside the first housing. The transfer head is engaged with the discharge end of the first housing. The film tape is led out from the feed reel, guided by the first film tape guide post, and twisted near the transfer head so that the film tape can fit against the bottom wall of the groove of the transfer head. Then, it extends around the transfer head to the groove on the other side, and is guided by the second film tape guide post to the take-up reel. The second housing and the first housing are then inserted and fastened together to form a complete transverse coating transfer device. The film tape conveying assembly achieves axial positioning between the two housings. Figures 9-10 As shown, the direction in which the film tape is drawn out of the transfer head of this application is perpendicular to the axis of the rotating shaft. Therefore, during use, the transfer head of this transfer tool is in a horizontal coating state, as shown in the attached figure. Figure 10 As shown, this structure shortens the overall length of the transfer device by adjusting the existing radially laid feed reel and take-up reel to an axially interlocked and overlapping manner, making it easier to hold. Moreover, the feed reel and take-up reel can rotate synchronously, which is conducive to the smooth release and winding of the film belt. Furthermore, this axial interlocking combination method is easy to assemble and disassemble. When one reel is damaged, it can be easily replaced without having to replace both reels at the same time, effectively reducing costs and simplifying assembly and disassembly procedures.
Claims
1. A transverse coating transfer tool, the transfer tool comprising a housing (1) and a film conveying assembly (2), the film conveying assembly (2) being located inside the housing (1), a transfer head (3) being disposed on the housing (1), a rotating shaft (101) extending in the thickness direction being disposed inside the housing (1), the film conveying assembly (2) being rotatably fitted onto the rotating shaft (101), characterized in that: The film conveyor assembly (2) includes a feed reel (201) and a take-up reel (202). The feed reel (201) and the take-up reel (202) are axially connected and can rotate synchronously circumferentially relative to the housing (1).
2. The transverse coating transfer tool according to claim 1, characterized in that: The feed reel (201) has a fitting part (203) extending axially from its shaft. The outer wall of the fitting part (203) is provided with a rib (204). The corresponding take-up reel (202) is provided with a sleeve hole (205). The inner wall of the sleeve hole (205) is provided with a groove (206) for inserting into the rib (204).
3. The transverse coating transfer tool according to claim 2, characterized in that: An elastic element (209) is provided below the fitting part (203), and the elastic element (209) is used to elastically fit with the core ring of the membrane belt (4); the rib (204) is integrally provided with the elastic element (209).
4. The transverse coating transfer tool according to claim 2, characterized in that: The number of the convex ribs (204) is not greater than the number of the grooves (206).
5. The transverse coating transfer tool according to claim 4, characterized in that: The ribs (204) are provided in three ways, and their length direction extends along the axial direction of the fitting part (203), and the three ribs (204) are distributed at equal intervals along the circumference of the fitting part (203).
6. The transverse coating transfer tool according to claim 2, characterized in that: The groove (206) is provided in multiple ways, and the multiple grooves (206) are evenly distributed along the inner peripheral wall of the sleeve hole (205).
7. The transverse coating transfer tool according to claim 2, characterized in that: One end of the groove (206) is open for axial insertion with the rib (204), and the other end is provided with a stop wall (207) for abutting against the end of the rib (204).
8. The transverse coating transfer tool according to claim 2, characterized in that: The width of the rib (204) gradually narrows toward the winding reel (202).
9. The transverse coating transfer tool according to claim 1, characterized in that: The outer diameter of the core ring of the feed reel (201) is smaller than the outer diameter of the core ring of the take-up reel (202).
10. The transverse coating transfer tool according to claim 1, characterized in that: A film belt guide post (5) is provided inside the housing (1) between the film belt conveying assembly (2) and the transfer head (3). The film belt guide post (5) includes a first film belt guide post (501) and a second film belt guide post (502). The line connecting the axes of the first film belt guide post (501) and the second film belt guide post (502) is on the same straight line as the center line of the transfer head (3).