Thermosensitive film slitting device

Abstract

The utility model discloses a thermosensitive film slitting device, and relates to the technical field of thermosensitive film slitting, the thermosensitive film slitting device comprises a base, one end of the upper surface of the base is provided with a film roller used for winding a thermosensitive film; the conveying assemblies are mounted at the two ends of the base; the rack is mounted in the middle of the upper surface of the base; and the slitting assembly is mounted in the inner cavity of the rack. According to the thermosensitive film slitting device, a pressing mechanism on the slitting assembly can automatically press and limit a film when the film is slit by a cutter through cooperation of a protruding block, a movable rod, a torsional spring and a pressing roller, the film is effectively prevented from moving in the slitting process, and the slitting precision is ensured; and a servo motor, a lead screw, a dovetail sliding groove and a distance measuring sensor in the driving mechanism are combined, so that the movement and displacement distance of the cutter can be accurately controlled, the slitting accuracy is further improved, and the requirement for high-precision slitting of the thermosensitive film is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat sensitive film slitting technical field, concretely is a kind of heat sensitive film slitting device. BACKGROUND

[0002] Heat sensitive film is the graphic recording medium that has coated heat-sensitive layer and protective layer on blue polyester base, and then generates pattern in heat-sensitive printer according to different temperature difference effect of heat-sensitive print head. Now heat sensitive film is widely used in image medicine such as CT examination, magnetic resonance, CR, DR etc. record, as the basis for doctor's diagnosis and treatment. It is usually composed of polyester PET base, heat-sensitive layer and protective layer. Heat sensitive film needs to be slitting during processing, and after film roll is unwound, slitting device is used to cut film roll into same or different size film for subsequent processing.

[0003] The utility model discloses a kind of heat sensitive film slitting devices with the utility model patent announcement No.CN221314308U, including workbench, slitting mechanism and unwinding mechanism;Workbench: its upper surface four corners symmetrically set has mounting hole;Slitting mechanism: it includes fixed seat one, limit frame, one-half gear, double-sided rack plate and blade, the fixed seat one is symmetrically set in the upper surface middle part of workbench, the left side of right side fixed seat one is provided with limit frame, double-sided rack plate is slidably connected in the inside of limit frame, the upper end left side of fixed seat one is rotatably connected with rotating shaft, the left end of rotating shaft is fixedly sleeved with one-half gear, one-half gear and double-sided rack plate are engagedly connected, the upper end left side of double-sided rack plate is fixedly connected with blade, the left side of blade is slidably connected with left side fixed seat one, the left side of blade is fixedly sleeved with two limit plates.

[0004] The existing heat sensitive film slitting device changes the time used for cutting by single-chip microcomputer controlling the rotating speed of motor one, realizes cutting different length film, and the rotating speed of motor one is stable, the cutting and retracting time of blade is stable, and the cutting accuracy is higher. However, the existing device only realizes cutting accuracy by controlling the rotating speed of motor, without setting special film pressing mechanism, in the slitting process, film may displace due to uneven stress, affect slitting accuracy, especially for some thin or soft texture heat sensitive film, cutting deviation may occur. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of heat sensitive film slitting device, solves the existing problems.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of heat sensitive film slitting device, comprising:

[0007] A base, an upper surface of the base is provided with a film roller for winding a heat-sensitive film at one end, a mechanism for conveying the film and a mechanism for slitting the film are arranged in the middle of the upper surface of the base, and the heat-sensitive film is slit;

[0008] A conveying assembly is arranged at both ends of the base for conveying the film before and after slitting;

[0009] A rack is arranged in the middle of the upper surface of the base for driving the slitting assembly on the rack to move up and down;

[0010] The slitting assembly is arranged in the inner cavity of the rack, the slitting assembly is driven to move by the driving mechanism on the slitting assembly to slit the heat-sensitive film, and the slitting assembly is arranged with a pressing mechanism to press and position the film during slitting.

[0011] Preferably, a recess is arranged in the middle of the upper surface of the base, and a discharge surface is arranged at the other end of the base, the discharge surface is arranged as an inclined surface for quickly discharging the slit heat-sensitive film, and the middle of the recess is arranged with a placing groove to accommodate a slitting plate corresponding to the cutter on the slitting assembly.

[0012] Preferably, the conveying assembly includes two sets of conveying units arranged on the upper surface of the base, each set of conveying unit includes a conveying roller arranged on the base through a mounting bracket and a plurality of equally spaced guide rollers arranged in the recess, and a driving motor is arranged on the mounting bracket at one end of the conveying roller to drive the conveying roller.

[0013] Preferably, the rack is arranged with a telescopic air cylinder at both ends of the upper surface, the output shaft of the telescopic air cylinder penetrates the top of the rack and is connected with the slitting assembly for driving the slitting assembly to move up and down.

[0014] Preferably, the slitting assembly includes a mounting plate arranged in the inner cavity of the rack, the pressing mechanism includes two protrusions fixed on both sides of the lower end of the mounting plate, the protrusions are movably connected with movable rods through torsional springs, the movable rods are arranged obliquely, and a pressing roller is movably connected between the two corresponding movable rods through a connecting shaft for pressing and positioning the heat-sensitive film during slitting.

[0015] Preferably, the driving mechanism comprises a servo motor fixed at one end of the lower part of the mounting plate, a dovetail sliding groove is formed in the middle of the lower surface of the mounting plate, the output shaft of the servo motor is fixed with a lead screw, the lead screw is located in the dovetail sliding groove, the lower surface of the mounting plate is attached with a mounting sheet, a cutter is installed on the mounting sheet, and the upper surface of the mounting sheet is fixed with a dovetail sliding block, the dovetail sliding block is located in the dovetail sliding groove, and the middle part of the dovetail sliding block is connected with the lead screw through a screw groove, and a distance measuring sensor is installed at the other end of the lower part of the mounting plate, and the distance measuring sensor is used for measuring the displacement distance of the cutter. Advantages

[0016] The utility model provides a kind of thermal sensitive film slitting device.Compared with prior art, it has the following advantages:

[0017] 1, the thermal sensitive film slitting device, the pressing mechanism on the slitting assembly can automatically press and limit the film when cutter slits by the cooperation of lug, movable rod, torsional spring and pressure roller, effectively prevent the film from displacement during slitting, ensure slitting accuracy, in addition, the combination of servo motor, lead screw, dovetail sliding groove and distance measuring sensor in driving mechanism can accurately control the movement and displacement distance of cutter, further improve the accuracy of slitting, meet the demand of high-precision slitting of thermal sensitive film.

[0018] 2, the thermal sensitive film slitting device, set up conveying assembly, can stably and efficiently convey thermal sensitive film by the cooperation of conveying roller and guide roller in two groups of conveying units, reduce manual intervention, improve work efficiency.Simultaneously, the inclined discharge surface set in one end of base makes the thermal sensitive film after slitting can be discharged quickly, guarantees the coherence of slitting work, improves overall slitting efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic diagram of the utility model;

[0020] Figure 2 It is the base structure schematic diagram of the utility model;

[0021] Figure 3 It is the rack structure schematic diagram of the utility model;

[0022] Figure 4 It is the slitting assembly structure bottom view schematic diagram of the utility model.

[0023] In the drawing: base 1, film roller 11, recess 12, discharge surface 13, slitting plate 14, conveying assembly 2, conveying roller 21, guide roller 22, rack 3, telescopic pneumatic cylinder 31, slitting assembly 4, mounting plate 41, lug 42, movable rod 43, pressure roller 44, dovetail sliding groove 45, servo motor 46, lead screw 47, mounting sheet 48, dovetail sliding block 49, distance measuring sensor 410. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1-4 shown, the present utility model provides two technical solutions:

[0026] The first implementation mode: A thermal film slitting device includes a base 1, a conveying component 2, a frame 3 and a slitting component 4.

[0027] Specifically, a film roller 11 for winding the thermal film is installed at one end of the upper surface of the base 1. A mechanism for conveying the film and a mechanism for slitting the film are provided in the middle of the upper surface of the base 1 for slitting the thermal film. A groove 12 is opened in the middle of the upper surface of the base 1. The other end of the base 1 is provided with a blanking surface 13. The blanking surface 13 is set as an inclined surface for the quick blanking of the slit thermal film. A slitting plate 14 is also provided in the middle of the upper surface of the base 1. The slitting plate 14 is placed in the groove 12 through a placement groove and corresponds to the cutting knife on the slitting component 4.

[0028] Specifically, the conveying component 2 is installed at both ends of the base 1 for conveying the film before and after slitting. The conveying component 2 includes two groups of conveying units arranged on the upper surface of the base 1. Each group of conveying units includes a conveying roller 21 installed on the base 1 through a mounting frame and a plurality of equally spaced guide rollers 22 arranged in the groove 12. A driving motor for driving the conveying roller 21 is installed on the mounting frame at one end of the conveying roller 21.

[0029] More specifically, the frame 3 is installed in the middle of the upper surface of the base 1 for driving the slitting component 4 thereon to move up and down. The frame 3 is set as a "冂" - shaped structure. The two ends of the frame 3 are respectively fixed on both sides of the middle of the upper surface of the base 1. Symmetrically arranged telescopic cylinders 31 are installed at both ends of the upper surface of the frame 3. The output shaft of the telescopic cylinder 31 penetrates through the top of the frame 3 and is connected to the slitting component 4 for driving the slitting component 4 to move up and down.

[0030] Specifically, the slitting assembly 4 is installed in the inner cavity of the frame 3. The slitting assembly 4 drives the cutter to move through the drive mechanism on it to slit the thermal film. The slitting assembly 4 uses a pressing mechanism on it to press and limit the film during slitting. The slitting assembly 4 includes a mounting plate 41 disposed in the inner cavity of the frame 3. The pressing mechanism includes protrusions 42 fixed on both sides of the lower end of the mounting plate 41. The protrusions 42 are movably connected to movable rods 43 through torsion springs. The movable rods 43 are inclined. A pressure roller 44 is movably connected between two corresponding movable rods 43 through a connecting shaft to press and limit the thermal film during slitting.

[0031] More specifically, the driving mechanism includes a servo motor 46 fixed to one lower end of the mounting plate 41. A dovetail groove 45 is provided in the middle of the lower surface of the mounting plate 41. A lead screw 47 is fixed to the output shaft of the servo motor 46. The lead screw 47 is located in the dovetail groove 45. A mounting plate 48 is attached to the lower surface of the mounting plate 41. A cutter is mounted on the mounting plate 48. A dovetail slider 49 is fixed to the upper surface of the mounting plate 48. The dovetail slider 49 is located in the dovetail groove 45 and serves as a guide, so that the cutter moves linearly. The middle part of the dovetail slider 49 is connected to the lead screw 47 through a screw groove. A distance sensor 410 is installed at the other lower end of the mounting plate 41. The distance sensor 410 is used to measure the displacement distance of the cutter.

[0032] When this device is in operation, the film roller 11, on which the thermal film is wound, is first installed on the mounting bracket at one end of the base 1. Then, the drive motor on the conveying assembly 2 is started, which drives the conveying roller 21 to rotate. Then, the thermal film is moved to another conveying unit through the cooperation of the conveying roller 21 and the guide roller 22. Next, the drive motor is driven by an external controller to move the cutting point of the thermal film to the cutting plate 14. Then, the telescopic cylinder 31 is started, which drives the mounting plate 41 to move downward until the cutter is inserted into the cutting plate 14. At this time, the pressure roller 44 contacts the thermal film and moves outward under force, which compresses the torsion spring and drives the pressure roller 44 to press the thermal film. After the limit is reached, the servo motor 46 is started again. The servo motor 46 drives the lead screw 47 to rotate. The lead screw 47 drives the cutter to move through the dovetail slider 49, so that the cutter cuts the thermal film. The displacement distance of the cutter is determined by the distance sensor 410, which makes it easier for the controller to control the cutting range of the cutter. After the cutting is completed, the mounting plate 41 is moved upward by the telescopic cylinder 31 until the pressure roller 44 separates from the film. Then, the servo motor 46 is controlled by the controller to reset the cutter. At this time, another conveying unit is started. The conveying roller 21 and the guide roller 22 on the other conveying unit cooperate to convey the cut thermal film to the unloading surface 13, and the thermal film is unloaded through the unloading surface 13.

[0033] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat-sensitive film slitting apparatus characterized by comprising: The utility model relates to a hot sensitive adhesive film cutting device, which comprises a base, a film roller for winding hot sensitive adhesive film is installed on the upper surface of the base, a mechanism for conveying the film and a mechanism for cutting the film are arranged in the middle of the upper surface of the base, and the hot sensitive adhesive film is cut. The utility model relates to a hot sensitive adhesive film cutting device, which comprises a base, a film roller for winding hot sensitive adhesive film is installed on the upper surface of the base, a mechanism for conveying the film and a mechanism for cutting the film are arranged in the middle of the upper surface of the base, and the hot sensitive adhesive film is cut. A rack is installed on the middle of the upper surface of the base, and the cutting assembly on the rack moves up and down. The cutting assembly is installed in the inner cavity of the rack, the cutting assembly moves the cutter through the driving mechanism, the hot sensitive adhesive film is cut, and the film is clamped and positioned when the film is cut through the clamping mechanism on the cutting assembly. The upper surface of the base is provided with a groove in the middle, the cutting plate is placed in the middle of the groove through the placing groove, the cutting plate corresponds to the cutter on the cutting assembly, the other end of the base is provided with a discharging surface, the discharging surface is an inclined surface, and the hot sensitive adhesive film after cutting is quickly discharged.

2. A heat-sensitive film slitting apparatus according to claim 1, wherein: The conveying assembly comprises two groups of conveying units arranged on the upper surface of the base, each group of conveying units comprises a conveying roller installed on the base through a mounting frame and a plurality of equally spaced guide rollers arranged in the groove, and a driving motor is installed on the mounting frame at one end of the conveying roller.

3. A heat-sensitive film slitting apparatus according to claim 1, wherein: The upper surface of the rack is symmetrically provided with telescopic air cylinders at both ends, the output shaft of the telescopic air cylinder penetrates the top of the rack and is connected with the cutting assembly, and the cutting assembly moves up and down.

4. A heat-sensitive film slitting apparatus according to claim 1, wherein: The cutting assembly comprises a mounting plate arranged in the inner cavity of the rack, the clamping mechanism comprises two protrusions fixed on the lower end of the mounting plate, the protrusions are movably connected with movable rods through torsional springs, the movable rods are arranged obliquely, a pressing roller is movably connected between the two corresponding movable rods through a connecting shaft, and the hot sensitive adhesive film is clamped and positioned when cutting.

5. A heat-sensitive film slitting apparatus according to claim 1, wherein: The driving mechanism comprises a servo motor fixed at one end of the lower part of the mounting plate, a dovetail sliding groove is formed in the middle of the lower surface of the mounting plate, a lead screw is fixed on the output shaft of the servo motor, the lead screw is located in the dovetail sliding groove, an installation piece is connected to the lower surface of the mounting plate, a cutter is installed on the installation piece, a dovetail sliding block is fixed on the upper surface of the installation piece, the dovetail sliding block is located in the dovetail sliding groove, the middle of the dovetail sliding block is connected with the lead screw through a screw groove, a distance measuring sensor is installed on the other end of the lower part of the mounting plate, and the distance measuring sensor is used for measuring the displacement distance of the cutter.

6. A heat-sensitive film slitting apparatus according to claim 5, wherein: ​

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