CN217807794U

CN217807794U - Foil feeding device for transverse IMR foil feeding machine

Info

Publication number: CN217807794U
Application number: CN202221216407.4U
Authority: CN
Inventors: 胡俊华
Original assignee: Alma Technology Co ltd
Current assignee: Alma Technology Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-11-15
Anticipated expiration: 2032-05-18

Abstract

The utility model discloses a foil feeding device for a transverse IMR foil feeder, which comprises a fixed plate, wherein a longitudinal moving plate which moves longitudinally relative to the fixed plate is arranged on one side of the fixed plate; the fixed plate is provided with a longitudinal driving assembly for driving the longitudinal moving plate to move longitudinally; a winding drum is arranged on the longitudinal moving plate, and a rolled foil film is arranged on the winding drum; the foil film is continuously output along the transverse direction; an unwinding driving assembly for driving the winding drum to unwind is arranged on one side of the winding drum, and a torsion sensor for measuring foil film driving torsion is arranged between the unwinding driving assembly and the winding drum; a longitudinal sensor used for sensing the longitudinal position of the foil membrane is arranged on the fixing plate; the utility model provides a send paper tinsel device for horizontal IMR send paper tinsel machine can carry out automatically regulated to paper tinsel membrane tension to the vertical position closed-loop control of paper tinsel membrane, the paper tinsel process that send of effective control paper tinsel membrane improves the rendition precision.

Description

Foil feeding device for transverse IMR foil feeder

Technical Field

The utility model relates to an in-mold injection transfer printing equipment technical field, in particular to a send paper tinsel device for horizontal IMR send paper tinsel machine.

Background

IMR (In-MouldDecoderation by Roller): the Chinese name in-mold decoration technology is characterized by that the decorative pattern and functional pattern are printed on the foil film (film) by means of high-precision printing machine, the foil is fed into a special-purpose forming mould by means of high-precision foil-feeding device, and accurately positioned, and then the pattern on the foil film is transferred to the surface of plastic product by means of high-temp. and high-pressure of injected plastic raw material.

The existing foil feeding mode of the foil feeder mainly adopts vertical foil feeding from top to bottom to realize a single-sided IMR technology; the foil feeding device is generally structured as follows: the foil film is wound on the foil placing bracket, the servo motor drives the foil placing roller to roll, the foil pressing roller presses the foil film on the foil placing roller, and the foil film is driven to move by friction force to complete the foil placing action; because of the inevitable error between the foil film and the mechanical member, the foil feeding speed cannot be kept completely consistent, and even if the phenomena of over-stretching, dislocation and the like occur, the phenomenon is not easy to be found, so that the transfer precision is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect among the prior art, provide a send paper tinsel device for horizontal IMR send paper tinsel machine, can carry out automatically regulated to foil membrane tension to foil membrane vertical position closed-loop control, the foil feeding process of effective control foil membrane improves the rendition precision.

In order to achieve the purpose, the utility model provides a foil feeding device for a transverse IMR foil feeder, which comprises a fixed plate, wherein one side of the fixed plate is provided with a longitudinal moving plate which moves longitudinally relative to the fixed plate; a longitudinal driving assembly for driving the longitudinal moving plate to move longitudinally is arranged on the fixed plate; a winding drum is arranged on the longitudinal moving plate, and a rolled foil film is arranged on the winding drum; the foil film is continuously output along the transverse direction; an unwinding driving assembly for driving the winding drum to unwind is arranged on one side of the winding drum, and a torque sensor for measuring foil film driving torque is arranged between the unwinding driving assembly and the winding drum; and a longitudinal sensor for sensing the longitudinal position of the foil membrane is arranged on the fixing plate.

Specifically, the torsion sensor is used for measuring the tension change output by the foil film and is matched with the unreeling driving assembly to realize automatic adjustment of the tension of the foil film; meanwhile, the longitudinal sensor detects the longitudinal position of the foil film, and controls the longitudinal driving assembly to output, so that the foil film moves longitudinally, the foil feeding process of the foil film is effectively controlled, and the transfer precision is improved.

Preferably, one side of the fixed plate is also provided with a lower template connecting piece which vertically moves relative to the fixed plate, a foil membrane which continuously passes through the lower template connecting piece along the transverse direction is arranged above the lower template connecting piece, two side surfaces of the fixed plate are both provided with vertical guide rails, a plurality of vertical sliding blocks are sleeved on the vertical guide rails, and the vertical sliding blocks are fixedly connected with the lower template connecting piece; the lower template connecting piece is also provided with a plurality of lifting hooks for moving the lower template connecting piece; one side of the vertical sliding block is provided with a thrust limiting block for limiting the vertical movement of the vertical sliding block; the anti-thrust limiting block is arranged to limit the vertical height of the lower template connecting piece, so that the lower template connecting piece keeps a certain height unchanged.

Preferably, the thrust limiting block is sleeved on the vertical sliding block, and a quick tightening part for quickly fixing the thrust limiting block on the vertical sliding block is arranged on the thrust limiting block; the side surface of the fixed plate is also provided with a height graduated scale, and the lower template connecting piece is provided with a graduated pointer; the scale pointer and the height scale are matched for use, and the lower template connecting piece is adjusted to a proper height; meanwhile, the height scale can display the height state of the lower template connecting piece, so that the observation and the adjustment are convenient.

Preferably, the longitudinal driving assembly comprises a first connecting plate fixedly connected with the fixing plate, a first motor arranged on the first connecting plate and a screw rod arranged below the first motor; the first motor is in transmission connection with the screw rod; the screw rod is sleeved with a sliding block, and the sliding block is fixedly connected with the longitudinal moving plate; the rotary motion of the first motor is transmitted to the screw rod, and the screw rod is matched with the sliding block to convert the rotary motion into longitudinal horizontal motion, so that the longitudinal moving plate is driven to move longitudinally; thereby adjusting the longitudinal position of the foil membrane.

Preferably, the longitudinal moving plate is U-shaped, and the winding drum comprises a rotating shaft which is arranged in the middle of the longitudinal moving plate and used for bearing the foil; one side of the rotating shaft is provided with a first baffle for limiting one side of the foil membrane, and the other side of the rotating shaft is fixedly provided with a second baffle for limiting the other side of the foil membrane; the two ends of the rotating shaft are provided with bearings, and the longitudinal moving plate is also provided with a fixed plate for limiting the transverse movement of the rotating shaft; one end of the rotating shaft is fixedly provided with a connecting block, and the connecting block is provided with a U-shaped groove; the fixing piece is arranged to prevent the rotating shaft from moving transversely in the rotating process to cause the loosening of the rotating shaft; the first baffle and the second baffle are provided with circular through holes for reducing weight.

Preferably, the unreeling driving assembly comprises a second connecting plate fixedly arranged on one side of the longitudinal moving plate, a second motor arranged on the second connecting plate and a torsion sensor arranged above the second motor; the second motor is in transmission connection with the torque sensor; the torque sensor is connected with the driving shaft through a coupler; one end of the driving shaft is provided with a U-shaped block inserted into the U-shaped groove; the torque output by the second motor is detected through the torque sensor, so that the output tension of the foil film is detected, and the output torque is transmitted to the rotating shaft by inserting the U-shaped block into the U-shaped groove.

Preferably, the bottom of the longitudinal moving plate is provided with a thickness detector for detecting the thickness of the residual foil, and the thickness detector is matched with the torsion sensor for use; in the process of unwinding the foil film, the thickness of the foil film excess material is continuously reduced, and the driving forces required by different thicknesses are different, so that the tension output by the foil film is changed; furthermore, the thickness detector can also remind staff of replacing the foil film in time.

Preferably, one side of the winding drum is provided with a plurality of foil pressing rollers, and the foil films sequentially pass through the foil pressing rollers; the foil pressing roller is arranged in the longitudinal moving plate; the foil film can be unfolded, flattened and tensioned through a foil pressing roller.

Preferably, the longitudinal sensor is arranged on one side of the fixing plate through a mounting bracket; a height sensor for sensing the height position of the foil film is arranged on the side edge of the longitudinal moving plate; the longitudinal sensor and the height sensor are both provided with adjusting devices, and the extending length and the longitudinal position can be adjusted through the adjusting devices so as to be suitable for different foil membrane types.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a torque sensor is installed between unreeling drive assembly and the winding reel, torque sensor is used for measuring the change of second motor output torque, obtains the size of foil membrane drive torque to carry the data that detect to unreeling drive assembly, control second motor output torque, and then adjust foil membrane tension; specifically, the tension of the foil film is automatically adjusted by an unreeling driving assembly; meanwhile, in the process of unwinding and outputting the foil film, the longitudinal position of the foil film can be changed, the longitudinal position change of the foil film is detected by a longitudinal sensor arranged on a fixed plate, the detected data is transmitted to a longitudinal driving assembly, and the longitudinal driving assembly adjusts the longitudinal position of a longitudinal moving plate, so that the foil film is longitudinally translated; the closed-loop control of the longitudinal position of the foil film is realized, the foil feeding process of the foil film can be effectively controlled by adjusting the tension and the longitudinal position of the foil film, and the transfer precision is improved.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a foil feeding device for a lateral IMR foil feeder according to the present invention;

fig. 2 is a schematic side view of a foil feeding device for a transverse IMR foil feeder according to the present invention;

fig. 3 is a schematic view of another side structure of a foil feeding device for a transverse IMR foil feeder according to the present invention;

fig. 4 is a schematic structural diagram of a longitudinal driving assembly provided by the present invention;

fig. 5 is a schematic structural view of the unwinding driving assembly provided by the present invention;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

fig. 7 is a schematic structural diagram of a winding drum provided by the present invention.

The figure includes:

1. a fixing plate; 3. longitudinally moving the plate; 4. a longitudinal drive assembly; 6. a winding drum; 5. a foil membrane; 7. an unwinding driving assembly; 8. a torque sensor; 92. a longitudinal sensor; 2. a lower template connecting piece; 11. a vertical guide rail; 12. a vertical slide block; 21. a hook; 13. a thrust limiting block; 14. a height scale; 22. a scale pointer; 41. a first connecting plate; 42. a first motor; 43. a screw rod; 44. a slider; 61. a rotating shaft; 62. a first baffle; 63. a second baffle; 64. a bearing; 65. a fixing sheet; 66. connecting blocks; 67. a U-shaped groove; 71. a second connecting plate; 72. a second motor; 73. a coupling; 74. a drive shaft; 75. a U-shaped block; 76. a thickness detector; 68. a foil pressing roller; 93. mounting a bracket; 91. a height sensor.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present embodiment, and it is obvious that the described embodiment is an embodiment of the present invention, not all embodiments. Based on this embodiment in the present invention, all other embodiments obtained by the ordinary skilled person in the art without making creative work all belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a foil feeding device for a transverse IMR foil feeder.

As shown in fig. 1, in the present embodiment, the foil feeding device is horizontally disposed, and an injection molding machine is installed on one side of the foil feeding device, and the injection molding machine is not shown in the drawings; the foil feeding device is used for transversely outputting the foil film 5, transversely inputting the foil film 5 into an injection molding machine, and printing the pattern on the foil film 5 on the surface of a product.

As shown in fig. 1, the foil feeding device comprises a fixed plate 1, wherein the fixed plate 1 can be fixed on a frame and kept still; a longitudinal moving plate 3 is slidably arranged on one side of the fixed plate 1; specifically, the longitudinal moving plate 3 can move longitudinally relative to the fixed plate 1; a longitudinal driving assembly 4 for driving the longitudinal moving plate 3 to move longitudinally is arranged on the fixed plate 1; further, the longitudinal driving assembly 4 is installed at one side of the fixed plate 1, in this embodiment, the longitudinal moving plate 3 is U-shaped, a winding drum 6 is installed inside the longitudinal moving plate 3, and a rolled foil 5 is installed on the winding drum 6; the foil film 5 is continuously output along the transverse direction; in this embodiment, the winding drum 6 is driven by an unwinding driving assembly 7; specifically, an unwinding driving assembly 7 for driving the winding drum 6 to unwind is arranged on one side of the winding drum 6, and a torque sensor 8 for measuring the driving torque of the foil 5 is arranged between the unwinding driving assembly 7 and the winding drum 6; the torque sensor 8 is used for measuring the change of the output torque of the second motor 72 to obtain the magnitude of the driving torque of the foil 5, transmitting the detected data to the unreeling driving assembly 7, controlling the output torque of the second motor 72 and further adjusting the tension of the foil 5; specifically, the tension of the foil film 5 is automatically adjusted by the unwinding driving assembly 7.

Furthermore, in the unwinding and outputting process of the foil 5, the longitudinal position of the foil 5 is changed, for the change of the longitudinal position of the foil, the longitudinal sensor 92 mounted on the fixed plate 1 detects the change of the longitudinal position of the foil, and transmits the detected data to the longitudinal driving assembly 4, and the longitudinal driving assembly 4 adjusts the longitudinal position of the longitudinal moving plate 3, so that the foil 5 also performs longitudinal translation; closed-loop control of the longitudinal position of the foil membrane 5 is achieved.

In summary, by adjusting the tension and the longitudinal position of the foil 5, the foil feeding process of the foil 5 can be effectively controlled, and the transfer precision can be improved.

As shown in fig. 2, a lower template connecting piece 2 which vertically moves relative to the fixing plate 1 is further installed on one side of the fixing plate 1, the template connecting piece 2 is used for connecting an injection molding machine, a foil film 5 which continuously passes through along the transverse direction is arranged above the lower template connecting piece 2, and the foil film 5 is transversely input into the injection molding machine; as shown in fig. 2, vertical guide rails 11 are arranged on both side surfaces of the fixed plate 1, a plurality of vertical sliders 12 are sleeved on the vertical guide rails 11, and the vertical sliders 12 are fixedly connected with the lower template connecting piece 2; the vertical sliding block 12 vertically moves along a vertical guide rail 11, and the lower template connecting part 2 is also provided with a plurality of lifting hooks 21 for moving the lower template connecting part 2; and one side of the vertical sliding block 12 is provided with a thrust limiting block 13 for limiting the vertical movement of the vertical sliding block 12.

Further, the thrust limiting block 13 is sleeved on the vertical sliding block 12, and a quick tightening part for quickly fixing the thrust limiting block 13 on the vertical sliding block 12 is arranged on the thrust limiting block 13; as shown in fig. 3, the side surface of the fixing plate 1 is further provided with a height scale 14, and the lower template connecting member 2 is provided with a scale pointer 22.

Further, the vertical height adjustment process of the formwork connecting member 2: firstly, connecting the lower template connecting piece 2 with a crane through a lifting hook 21; secondly, loosening the quick tightening part, and driving a crane to vertically move the lower template connecting piece 2; thirdly, the height is adjusted to be proper through the matching of the scale pointer 22 and the height scale 14; and finally, screwing the quick screwing component to limit the vertical movement of the lower template connecting piece 2.

As shown in fig. 4, the longitudinal driving assembly 4 includes a first connecting plate 41 fixedly connected to the fixing plate 1, a first motor 42 mounted on the first connecting plate 41, and a screw 43 mounted below the first motor 42; the first motor 42 is in transmission connection with the screw rod 43; the screw 43 is sleeved with a sliding block 44, and the sliding block 44 is fixedly connected with the longitudinal moving plate 3.

Specifically, in this embodiment, the first motor 42 and the lead screw 43 are driven by a synchronous belt and a synchronous wheel; the first motor 42 transmits the rotation motion to the screw rod 43 through the matching of the synchronous belt and the synchronous wheel; the screw rod 43 and the sliding block 44 are matched to convert the rotation motion into longitudinal horizontal motion, so that the longitudinal moving plate 3 is driven to move longitudinally; further, in order to further ensure the stability of the longitudinal movement of the longitudinal moving plate 3, in this embodiment, a longitudinal guide rail is installed on one side of the fixed plate 1, a longitudinal slider is sleeved on the longitudinal guide rail, and the longitudinal slider is fixedly connected to the longitudinal moving plate 3, so that the degree of freedom of the longitudinal moving plate 3 is limited, and the stability of the longitudinal movement of the longitudinal moving plate 3 is ensured.

As shown in fig. 4, the longitudinal moving plate 3 is U-shaped, and as shown in fig. 5, the winding drum 6 includes a rotating shaft 61 installed in the middle of the longitudinal moving plate 3 and used for bearing the foil 5; the foil 5 is in close contact with the rotary shaft 61 and rotates following the rotary shaft 61; a first baffle 62 for limiting one side of the foil membrane 5 is arranged on one side of the rotating shaft 61, and a second baffle 63 for limiting the other side of the foil membrane 5 is fixedly arranged on the other side; bearings 64 are arranged at two ends of the rotating shaft 61, and a fixing plate 65 for limiting the transverse movement of the rotating shaft 61 is arranged on the longitudinal moving plate 3; the fixing piece is arranged to prevent the rotating shaft 61 from moving transversely during the rotation process, which causes the rotating shaft 61 to be loosened; the first and

second shutters

62 and 63 are provided with circular through holes for weight reduction.

Further, in order to better connect with the unwinding driving assembly 7, as shown in fig. 6, a connection block 66 is fixedly installed at one end of the rotating shaft 61, and a U-shaped groove 67 is formed in the connection block 66.

As shown in fig. 5, the unreeling driving assembly 7 includes a second connecting plate 71 fixedly installed at one side of the longitudinal moving plate 3, a second motor 72 installed on the second connecting plate 71, and a torque sensor 8 installed above the second motor 72; the second motor 72 is in transmission connection with the torque sensor 8; the torque sensor 8 is connected with a driving shaft 74 through a coupler 73; the driving shaft 74 is provided at one end with a U-shaped block 75 inserted into the U-shaped groove 67.

Specifically, in this embodiment, the second motor 72 and the torque sensor 8 are driven by a synchronous belt and a synchronous wheel; the torque output by the second motor 72 is detected by the torque sensor 8, and then the output tension of the foil 5 is detected, and the output torque is transmitted to the rotating shaft 61 by inserting the U-shaped block 75 into the U-shaped groove 67.

The feeding process of the rolled foil film 5 comprises the following steps: firstly, the fixing pieces 65 on both sides of the longitudinal moving plate 3 are disassembled; secondly, separating the U-shaped groove 67 from the U-shaped block 75, and taking down the rotating shaft 61; then, the second shutter 63 on the side of the rotation shaft 61 is removed; finally, the new foil membrane 5 is loaded onto the rotating shaft 61; realize changing the foil membrane book fast, improve the efficiency of trading foil membrane 5.

As shown in fig. 5, a thickness detector 76 for detecting the thickness of the excess material of the foil 5 is installed at the bottom of the longitudinal moving plate 3, and the thickness detector 76 is used in cooperation with the torque sensor 8; further, in the process of unwinding the foil film 5, the thickness of the excess material of the foil film 5 is continuously reduced, and the driving forces required by different thicknesses are different, so that the tension output by the foil film 5 is changed, and the change of the tension output by the foil film 5 can be further accurately controlled by detecting the thickness of the excess material of the foil film 5 through the thickness detector 76, so as to realize automatic adjustment of the tension of the foil film 5; furthermore, the thickness detector 76 may also remind personnel to replace the foil 5 in time.

As shown in fig. 1, a plurality of foil pressing rollers 68 are arranged on one side of the winding drum 6, and the foil film 5 passes through the foil pressing rollers 68 in sequence; the foil pressing roller 68 is arranged inside the longitudinal moving plate 3; the foil membrane 5 is unwound, flattened and tensioned by the foil roller 68.

As shown in fig. 1, the longitudinal sensor 92 is mounted on one side of the fixing plate 1 through a mounting bracket 93; the side edge of the longitudinal moving plate 3 is provided with a height sensor 91 for sensing the height position of the foil film 5; further, the longitudinal sensor 92 and the height sensor 91 are provided with adjusting devices, and the extending length and the longitudinal position can be adjusted by the adjusting devices to adapt to different types of foil membranes 5.

In the actual production process, the types of the foil films 5 are various, and the requirements on the tension and the foil feeding speed are different, in this embodiment, a longitudinal sensor 92 and a height sensor 91 are respectively arranged on two sides of each foil film 5, so as to complete the accurate positioning in the foil feeding process.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A foil feeding apparatus for a transverse IMR foil feeder, characterized by: comprises a fixed plate (1), one side of the fixed plate (1) is provided with a longitudinal moving plate (3) which moves longitudinally relative to the fixed plate (1); a longitudinal driving assembly (4) for driving the longitudinal moving plate (3) to move longitudinally is arranged on the fixed plate (1); a winding drum (6) is arranged on the longitudinal moving plate (3), and a rolled foil membrane (5) is arranged on the winding drum (6); the foil film (5) is continuously output along the transverse direction; an unreeling driving assembly (7) used for driving the reeling drum (6) to unreel is arranged on one side of the reeling drum (6), and a torsion sensor (8) used for measuring the driving torsion of the foil film (5) is arranged between the unreeling driving assembly (7) and the reeling drum (6); and a longitudinal sensor (92) for sensing the longitudinal position of the foil membrane (5) is arranged on the fixing plate (1).

2. A foil feeding apparatus for a lateral IMR foil feeder as claimed in claim 1, wherein: the device is characterized in that a lower template connecting piece (2) which vertically moves relative to the fixed plate (1) is further arranged on one side of the fixed plate (1), a foil membrane (5) which continuously passes through the lower template connecting piece (2) along the transverse direction is arranged above the lower template connecting piece, vertical guide rails (11) are arranged on two side faces of the fixed plate (1), a plurality of vertical sliding blocks (12) are sleeved on the vertical guide rails (11), and the vertical sliding blocks (12) are fixedly connected with the lower template connecting piece (2); the lower template connecting piece (2) is also provided with a plurality of lifting hooks (21) for moving the lower template connecting piece (2); and one side of the vertical sliding block (12) is provided with a thrust limiting block (13) for limiting the vertical movement of the vertical sliding block (12).

3. A foil feeding apparatus for a lateral IMR foil feeder as claimed in claim 2, wherein: the thrust limiting block (13) is sleeved on the vertical sliding block (12), and a quick tightening part for quickly fixing the thrust limiting block (13) on the vertical sliding block (12) is arranged on the thrust limiting block (13); the side surface of the fixing plate (1) is also provided with a height scale (14), and the lower template connecting piece (2) is provided with a scale pointer (22).

4. A foil feed apparatus for a transverse IMR foil feeder as claimed in claim 1, wherein: the longitudinal driving assembly (4) comprises a first connecting plate (41) fixedly connected with the fixing plate (1), a first motor (42) arranged on the first connecting plate (41) and a screw rod (43) arranged below the first motor (42); the first motor (42) is in transmission connection with the screw rod (43); the lead screw (43) is sleeved with a sliding block (44), and the sliding block (44) is fixedly connected with the longitudinal moving plate (3).

5. A foil feeding apparatus for a lateral IMR foil feeder as claimed in claim 1, wherein: the longitudinal moving plate (3) is U-shaped, and the winding drum (6) comprises a rotating shaft (61) which is arranged in the middle of the longitudinal moving plate (3) and used for bearing the foil membrane (5); one side of the rotating shaft (61) is provided with a first baffle (62) for limiting one side of the foil membrane (5), and the other side of the rotating shaft is fixedly provided with a second baffle (63) for limiting the other side of the foil membrane (5); bearings (64) are arranged at two ends of the rotating shaft (61), and a fixing plate (65) used for limiting the transverse movement of the rotating shaft (61) is also arranged on the longitudinal moving plate (3); and one end of the rotating shaft (61) is fixedly provided with a connecting block (66), and a U-shaped groove (67) is formed in the connecting block (66).

6. Foil feeding apparatus for a transverse IMR foil feeder according to claim 5, wherein: the unreeling driving assembly (7) comprises a second connecting plate (71) fixedly arranged on one side of the longitudinal moving plate (3), a second motor (72) arranged on the second connecting plate (71) and a torsion sensor (8) arranged above the second motor (72); the second motor (72) is in transmission connection with the torque sensor (8); the torque sensor (8) is connected with a driving shaft (74) through a coupling (73); and one end of the driving shaft (74) is provided with a U-shaped block (75) inserted into the U-shaped groove (67).

7. Foil feeding apparatus for IMR transverse foil feeders, as claimed in claim 6, characterized in that: the bottom of the longitudinal moving plate (3) is provided with a thickness detector (76) for detecting the thickness of the residual material of the foil membrane (5), and the thickness detector (76) is matched with the torsion sensor (8) for use.

8. A foil feed apparatus for a transverse IMR foil feeder as claimed in claim 1, wherein: a plurality of foil pressing rollers (68) are arranged on one side of the winding drum (6), and the foil film (5) passes through the foil pressing rollers (68) in sequence; and the foil pressing roller (68) is arranged in the longitudinal moving plate (3).

9. A foil feeding apparatus for a lateral IMR foil feeder as claimed in claim 1, wherein: the longitudinal sensor (92) is arranged on one side of the fixing plate (1) through a mounting bracket (93); and a height sensor (91) for sensing the height position of the foil film (5) is arranged on the side edge of the longitudinal moving plate (3).