Slitting device for POF (Polyolefin Fiber) heat shrink film production

Abstract

The invention relates to the field of POF heat shrink film processing equipment, in particular to a slitting device for POF heat shrink film production, which comprises a supporting base for supporting, an avoiding guide groove is formed in the center of the inner end surface of the supporting base, and two groups of limiting guide seats are arranged at each of the front part and the rear part of the supporting base. By arranging the equidistant guide device, when the slitting distance of a cutting tool to a shrink film is adaptively adjusted and controlled, a gear motor can synchronously drive a driven synchronous belt wheel and a threaded rotating sleeve to rotate by rotating a synchronous belt wheel and a synchronous belt, so that the threaded rotating sleeve can be in threaded connection with a transmission lead screw; furthermore, two groups of guide inclined shafts and linear sliding shafts are synchronously driven to displace, and the slitting distance of the three groups of cutting tools to the shrink film is quickly and accurately regulated and controlled through sliding limiting of the guide inclined shafts, the linear sliding shafts and linear bearings; and the stability and convenience of equidistant regulation and control of the equipment on the distances among the three groups of cutting tools are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat shrinkable film processing equipment, in particular to a slitting device for producing POF heat shrinkable films. Background Art

[0002] POF heat shrink film has excellent physical properties and environmental characteristics, and is widely used in the packaging of food, daily necessities, electronic products, medicine and other fields. At the same time, POF heat shrink film has high transparency and good gloss, which can clearly show the appearance of the packaged products and enhance the display effect of the products. After the heat shrink film is processed, it needs to be cut by shrink film slitting equipment to facilitate the subsequent transportation of shrink films of different specifications.

[0003] For example, the publication number CN219445303U discloses a fixed-distance slitting device for shrink film production, comprising a main body and a second pulley. A first motor is fixedly connected to the left side of the front end of the main body, a fourth pulley is fixedly connected to the output end of the first motor, first fixed blocks are fixedly connected to the outer walls at both ends above the main front end, and a table is fixedly connected to the top of the main body. In this utility model, the shrink film is compacted by rotating the roller, the movement of the second motor drives the third pulley at the output end to operate, a first belt disposed between the second and third pulleys drives the first rotating rod to rotate, a cutter on the outer wall of the first rotating rod slits the shrink film, the first motor drives the fourth pulley to move, and a second belt disposed between the fourth and first pulleys drives the first pulley to rotate, so that the rotation of the third rotating rod drives the sleeve to rotate, thereby reeling in the cut shrink film, thereby improving labor efficiency and reducing production costs.

[0004] Although the above-mentioned equipment can perform slitting operations on shrink films, it is not convenient to adjust the spacing of the shrink film slitting according to needs, thereby reducing the adaptability of the equipment to slitting different shrink films. At the same time, the above-mentioned equipment is also not convenient for adjusting the stability of slitting shrink films at different angles according to needs. Therefore, a slitting device for POF heat shrink film production is needed to solve the above-mentioned problems. Summary of the Invention

[0005] The object of the present invention is to provide a slitting device for producing POF heat shrinkable film to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a slitting device for producing POF heat shrinkable film, comprising a support base for support, a position-avoiding guide groove being provided at the center of the inner end surface of the support base, two sets of position-limiting guide seats being provided at the front and rear of the support base, two sets of transmission guide rollers being rotatably engaged with the inner end surfaces of the two sets of position-limiting guide seats, transmission gears being provided at the centers of the side end surfaces of the two sets of transmission guide rollers, and servo motors being provided at the side end surfaces of the position-limiting guide seats facing the transmission guide rollers.

[0007] An equidistant guide device, the equidistant guide device is fixedly arranged at the center of the upper end surface of the support base, and the equidistant guide device is used to adjust the angle and spacing of the cutting;

[0008] The slitting device is provided with three groups in total, and the three groups of slitting devices are equidistantly slidably engaged with the inner end surface of the equidistant guide device, and the slitting device is used to slit the shrink film.

[0009] Preferably, the slitting device includes a limiting slide, a limiting swivel seat is fixedly provided at the center of the upper end face of the limiting slide, and a positioning swivel seat is rotatably connected at the center of the inner end face of the limiting swivel seat, a linear bearing is fixedly provided at the upper end face of the positioning swivel seat, a transmission worm gear is rotatably connected at the middle part of the inner end face of the limiting slide, and a cutting tool is fixedly provided at the center of the lower end face of the transmission worm gear, a stepping motor is provided at the side of the rear end face of the limiting slide, and a transmission worm is provided at the output end of the stepping motor.

[0010] Preferably, the equidistant guiding device includes a fixed base, a threaded sleeve is rotatably clamped at the middle part of the inner end face of the fixed base, and a driven synchronous pulley is fixedly provided on the outer end face of the threaded sleeve, a reduction motor is provided on the side of the rear end face of the fixed base, and a rotating synchronous pulley is provided at the output end of the reduction motor, the driven synchronous pulley and the rotating synchronous pulley are meshed with each other through a synchronous belt, and the inner end face of the fixed base is threadedly connected to the guide device through the threaded sleeve.

[0011] Preferably, the guiding device includes a positioning guide seat for support, a transmission screw is provided at the middle of the inner end surface of the two groups of positioning guide seats, and a linear sliding shaft is provided at the bottom center of the two groups of positioning guide seats, and a guiding inclined shaft is symmetrically provided on the side of the lower end surface of the two groups of positioning guide seats.

[0012] Preferably, the front and rear two groups of transmission guide rollers are meshed and connected through the transmission gears, and the conveying gap between the two groups of transmission guide rollers is flush with the upper end surface of the support base. The conveying gap between the two groups of transmission guide rollers is flush with the upper end surface of the support base, which can effectively improve the accuracy of the subsequent transmission guide rollers in conveying the shrink film. At the same time, the shrink film is flush with the upper part of the support base, which can also improve the stability of subsequent slitting.

[0013] Preferably, the transmission worm is meshed with the transmission worm wheel, and the guide oblique shaft and the linear sliding shaft are both slidably engaged with the linear bearing. The two groups of guide oblique shafts with inclined angles can synchronously drive the two groups of cutting devices to move inward and outward synchronously through the sliding limit with the linear bearing, thereby improving the stability and accuracy of the spacing control of the three groups of cutting devices.

[0014] Preferably, the guide device is adapted to the transmission screw through the threaded sleeve and then threadedly connected to the inside of the fixed base. The threaded connection between the transmission screw and the threaded sleeve can facilitate the subsequent synchronous displacement of the two groups of guide bevel shafts, thereby providing sufficient guiding basis for the subsequent equidistant adjustment of the cutting spacing of the three-group cutting device.

[0015] Preferably, the width of the cutting tool is smaller than the width of the avoidance guide groove, and the limiting slide is slidably engaged with the inside of the fixed clamping seat. The avoidance guide groove can provide sufficient guiding basis for the subsequent flipping and adjusting angle of the cutting tool, thereby improving the accuracy of subsequent adjustment. At the same time, the sliding limit of the limiting slide and the positioning rotary seat can improve the accuracy of the subsequent displacement of the slitting device in the equidistant guide device.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention sets an equidistant guide device. When adaptively adjusting the slitting spacing of the shrink film by the cutting tool, the reduction motor can synchronously drive the driven synchronous pulley and the threaded sleeve to rotate by rotating the synchronous pulley and the synchronous belt, so that the threaded sleeve can be connected with the transmission screw through a thread, thereby synchronously driving the two groups of guide bevel shafts and linear slide shafts to move, and then through the sliding limit of the guide bevel shafts and linear slide shafts and the linear bearings, the slitting spacing of the shrink film by the three groups of cutting tools can be quickly and accurately adjusted, effectively improving the stability and convenience of the equipment in equidistantly adjusting the spacing between the three groups of cutting tools.

[0018] 2. The present invention provides a slitting device. When adaptively adjusting the slitting angle of the cutting tool, the stepping motor can engage the transmission worm and the transmission worm wheel to quickly and accurately adjust the slitting angle of the cutting tool, thereby facilitating the subsequent equipment to slitting curved or irregular shrink films, thereby improving the adaptability of the equipment to shrink films of different models or irregular shapes at the slitting point. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of the main body of the present invention;

[0021] Figure 2 A side view of the main body of the present invention;

[0022] Figure 3 This is an exploded view of the slitting device of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the slitting device of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the equidistant guide device of the present invention;

[0025] Figure 6 A side view of an equidistant guide device according to the present invention;

[0026] Figure 7 It is a structural schematic diagram of the guide device of the present invention.

[0027] In the figure: 1-support base, 2-slitting device, 3-equidistant guiding device, 4-servo motor, 5-limiting guide seat, 6-transmission guide roller, 7-avoidance guide groove, 8-transmission gear, 21-limiting slide, 22-linear bearing, 23-positioning swivel seat, 24-limiting swivel seat, 25-transmission worm gear, 26-cutting tool, 27-stepping motor, 28-transmission worm, 31-reduction motor, 32-guide device, 33-fixed card seat, 34-driven synchronous pulley, 35-rotating synchronous pulley, 36-threaded swivel sleeve, 37-synchronous belt, 321-positioning guide seat, 322-transmission screw, 323-guide inclined axis, 324-linear slide shaft. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] Example 1

[0032] See also Figure 1-7 The present invention provides an embodiment of a slitting device for producing POF heat shrinkable film, comprising a support base 1 for support, a position-avoiding guide groove 7 being provided at the center of the inner end surface of the support base 1, two sets of position-limiting guide seats 5 being provided at the front and rear of the support base 1, two sets of transmission guide rollers 6 being rotatably engaged with the inner end surfaces of the two sets of position-limiting guide seats 5, and transmission gears 8 being provided at the centers of the side end surfaces of the two sets of transmission guide rollers 6, and a servo motor 4 being provided at the side end surface of the position-limiting guide seat 5 facing the transmission guide rollers 6.

[0033] The equidistant guide device 3 is fixedly arranged at the center of the upper end surface of the support base 1, and is used to adjust the angle and spacing of the cutting;

[0034] The slitting device 2 is provided with three groups in total, and the three groups of slitting devices 2 are equidistantly slidably clamped on the inner end surface of the equidistant guide device 3. The slitting device 2 is used to slit the shrink film.

[0035] like Figure 3 and Figure 4The slitting device 2 includes a limiting slide 21, a limiting swivel seat 24 is fixedly arranged at the center of the upper end surface of the limiting slide 21, and a positioning swivel seat 23 is rotatably connected at the center of the inner end surface of the limiting swivel seat 24, a linear bearing 22 is fixedly arranged on the upper end surface of the positioning swivel seat 23, a transmission worm gear 25 is rotatably connected at the middle part of the inner end surface of the limiting slide 21, and a cutting tool 26 is fixedly arranged at the center of the lower end surface of the transmission worm gear 25, a stepping motor 27 is arranged at the side of the rear end surface of the limiting slide 21, and a transmission worm 28 is arranged at the output end of the stepping motor 27.

[0036] like Figure 5 and Figure 6 The equidistant guide device 3 includes a fixed base 33, a threaded sleeve 36 is rotatably connected to the middle part of the inner end surface of the fixed base 33, and a driven synchronous pulley 34 is fixedly provided on the outer end surface of the threaded sleeve 36, a reduction motor 31 is provided on the side of the rear end surface of the fixed base 33, and a rotating synchronous pulley 35 is provided at the output end of the reduction motor 31, the driven synchronous pulley 34 and the rotating synchronous pulley 35 are meshed and connected by a synchronous belt 37, and the inner end surface of the fixed base 33 is threadedly connected to the guide device 32 through the threaded sleeve 36.

[0037] like Figure 7 The guide device 32 includes a positioning guide seat 321 for support. A transmission screw 322 is provided at the middle of the inner end surface of the two groups of positioning guide seats 321, and a linear sliding shaft 324 is provided at the bottom center of the two groups of positioning guide seats 321. A guide oblique shaft 323 is symmetrically provided on the side of the lower end surface of the two groups of positioning guide seats 321.

[0038] like Figure 1 The front and rear sets of transmission guide rollers 6 are meshed and connected through transmission gears 8. The conveying gap between the two sets of transmission guide rollers 6 is flush with the upper end surface of the support base 1, which can effectively improve the accuracy of the subsequent transmission guide rollers 6 in conveying the shrink film. At the same time, the shrink film is flush with the upper part of the support base 1, which can also improve the stability of subsequent slitting.

[0039] like Figure 3 The transmission worm 28 is meshed with the transmission worm wheel 25. When the slitting angle of the cutting tool 26 is statically or dynamically adjusted, the stepping motor 27 can quickly and accurately adjust the slitting angle of the shrink film by the cutting tool 26 through the meshing of the transmission worm 28 and the transmission worm wheel 25.

[0040] The guide inclined shaft 323 and the linear sliding shaft 324 are both slidably engaged with the linear bearing 22. The two groups of guide inclined shafts 323 with inclined angles can synchronously drive the two groups of cutting devices 2 to move inward and outward synchronously through the sliding limit with the linear bearing 22, thereby improving the stability and accuracy of the spacing control of the three groups of cutting devices 2.

[0041] like Figure 5 and Figure 7 The guide device 32 is adapted to the transmission screw 322 through the threaded sleeve 36 and then threadedly connected to the inside of the fixed base 33. The threaded connection between the transmission screw 322 and the threaded sleeve 36 can facilitate the subsequent synchronous displacement of the two sets of guide inclined shafts 323, thereby providing sufficient guiding basis for the subsequent equidistant adjustment of the slitting spacing of the three-group slitting device 2.

[0042] like Figure 1 The width of the cutting tool 26 is smaller than the width of the avoidance guide groove 7. The limiting slide 21 is slidably engaged with the fixed clamping seat 33. The avoidance guide groove 7 can provide sufficient guiding basis for the subsequent flipping and adjusting angle of the cutting tool 26, thereby improving the accuracy of subsequent adjustment. At the same time, the sliding limit of the limiting slide 21 and the positioning rotating seat 23 can improve the accuracy of the subsequent displacement of the slitting device 2 in the equidistant guide device 3.

[0043] Working principle: Before use, the staff can pass the heat shrink film to be cut between the front and rear two sets of transmission guide rollers 6. The conveying gap between the front and rear two sets of transmission guide rollers 6 is flush with the upper part of the support base 1, so that the heat shrink film can remain flat during cutting. During cutting, the front and rear two sets of servo motors 4 are started, and then the front and rear two sets of servo motors 4 can synchronously drive the two sets of transmission guide rollers 6 to rotate through the two sets of transmission gears 8, so that the front and rear two sets of transmission guide rollers 6 can drive the heat shrink film to move synchronously, and at the same time, the equidistantly distributed cutting tools 26 can cut the shrink film at equal distances. If it is necessary to adjust the equidistant distribution spacing of the cutting tools 26, the staff can start the reduction motor 31 at this time. The reduction motor 31 can drive the rotating synchronous pulley 35 to rotate. When the rotating synchronous pulley 35 rotates, it can synchronously drive the driven synchronous pulley 37 through the synchronous belt 37. The pulley 34 rotates so that the driven synchronous pulley 34 can synchronously drive the threaded sleeve 36 to rotate. At the same time, the threaded sleeve 36 can be connected to the transmission screw 322 through a thread, thereby driving the linear slide shaft 324 and the guide inclined shaft 323 to move. When it is necessary to expand the spacing between the three groups of cutting tools 26, the threaded sleeve 36 can drive the guide inclined shaft 323 and the linear slide shaft 324 to move inward through the transmission screw 322. At this time, the two groups of guide inclined shafts 323 set at an angle can drive the limiting slide 21 to move synchronously sideways through the linear bearing 22, thereby adjusting the cutting spacing of the cutting tool 26. At the same time, if it is necessary to cut curved or irregular shrink film, the stepping motor 27 can engage with the transmission worm 28 and the transmission worm wheel 25 to drive the cutting tool 26 to rotate, thereby adjusting the cutting angle of the shrink film by the cutting tool 26.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A slitting device for producing POF heat shrinkable film, comprising a support base (1) for supporting, a position-avoiding guide groove (7) being provided at the center of the inner end surface of the support base (1), two groups of position-limiting guide seats (5) being provided at the front and rear of the support base (1), two groups of transmission guide rollers (6) being rotatably engaged with the inner end surfaces of the two groups of position-limiting guide seats (5), and transmission gears (8) being provided at the centers of the side end surfaces of the two groups of transmission guide rollers (6), a servo motor (4) being provided at the side end surface of the position-limiting guide seat (5) facing the transmission guide roller (6), and characterized in that: An equidistant guide device (3), the equidistant guide device (3) being fixedly arranged at the center of the upper end surface of the support base (1), and the equidistant guide device (3) being used for regulating the angle and spacing of the slitting; The slitting device (2) is provided with three groups in total, and the three groups of the slitting devices (2) are equidistantly slidably engaged with the inner end surface of the equidistant guide device (3), and the slitting device (2) is used for slitting the shrink film.

2. The slitting device for producing POF heat shrinkable film according to claim 1, characterized in that: The slitting device (2) comprises a limiting slide (21), a limiting rotary seat (24) is fixedly provided at the center of the upper end surface of the limiting slide (21), and a positioning rotary seat (23) is rotatably connected at the center of the inner end surface of the limiting rotary seat (24), a linear bearing (22) is fixedly provided at the upper end surface of the positioning rotary seat (23), a transmission worm gear (25) is rotatably connected at the middle part of the inner end surface of the limiting slide (21), and a cutting tool (26) is fixedly provided at the center of the lower end surface of the transmission worm gear (25), a stepping motor (27) is provided at the side of the rear end surface of the limiting slide (21), and a transmission worm gear (28) is provided at the output end of the stepping motor (27).

3. The slitting device for producing POF heat shrinkable film according to claim 2, characterized in that: The equidistant guide device (3) includes a fixed card seat (33), a threaded sleeve (36) is rotatably connected to the middle part of the inner end surface of the fixed card seat (33), and a driven synchronous pulley (34) is fixedly provided on the outer end surface of the threaded sleeve (36), a reduction motor (31) is provided on the side of the rear end surface of the fixed card seat (33), and a rotating synchronous pulley (35) is provided at the output end of the reduction motor (31), the driven synchronous pulley (34) and the rotating synchronous pulley (35) are meshed and connected by a synchronous belt (37), and the inner end surface of the fixed card seat (33) is threadedly connected to the guide device (32) through the threaded sleeve (36).

4. The slitting device for producing POF heat shrinkable film according to claim 3, characterized in that: The guide device (32) includes a positioning guide seat (321) for support, a transmission screw (322) is provided at the middle of the inner end surface of the two groups of positioning guide seats (321), and a linear sliding shaft (324) is provided at the bottom center of the two groups of positioning guide seats (321), and a guide oblique shaft (323) is symmetrically provided on the side of the lower end surface of the two groups of positioning guide seats (321).

5. The slitting device for producing POF heat shrinkable film according to claim 4, characterized in that: The front and rear groups of transmission guide rollers (6) are meshed and connected via the transmission gear (8), and the conveying gap between the two groups of transmission guide rollers (6) is flush with the upper end surface of the support base (1).

6. The slitting device for producing POF heat shrinkable film according to claim 5, characterized in that: The transmission worm (28) is meshedly connected with the transmission worm wheel (25), and the guide oblique shaft (323) and the linear sliding shaft (324) are both slidably engaged with the linear bearing (22).

7. The slitting device for producing POF heat shrinkable film according to claim 5, characterized in that: The guide device (32) is adapted to the transmission screw (322) through the threaded sleeve (36) and is then threadedly connected to the interior of the fixed base (33).

8. The slitting device for producing POF heat shrinkable film according to claim 5, characterized in that: The width of the cutting tool (26) is smaller than the width of the avoidance guide groove (7), and the limiting slide seat (21) is slidably engaged with the interior of the fixed clamping seat (33).

Images