CN112125027A - Plastic film die cutting equipment - Google Patents
Plastic film die cutting equipment Download PDFInfo
- Publication number
- CN112125027A CN112125027A CN202011104284.0A CN202011104284A CN112125027A CN 112125027 A CN112125027 A CN 112125027A CN 202011104284 A CN202011104284 A CN 202011104284A CN 112125027 A CN112125027 A CN 112125027A
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- China
- Prior art keywords
- die cutting
- plastic film
- unwinding
- winding
- flattening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/34—Apparatus for taking-out curl from webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
- B65H43/02—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable detecting, or responding to, absence of articles
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to a plastic film die cutting device, comprising: the device comprises an unwinding device, a winding device and a die cutting device, wherein the unwinding device and the winding device are respectively arranged on two sides of the die cutting device; the winding device comprises a winding driving motor and a winding roller, and the winding roller is in driving connection with the winding driving motor; the die cutting device further comprises a film flattening mechanism, the film flattening mechanism is arranged on the die cutting workbench, and the film flattening mechanism is arranged at one end, close to the unwinding device, of the die cutting workbench. According to the plastic film die cutting equipment disclosed by the invention, after the plastic film is unreeled and before die cutting processing, the plastic film is flattened, so that the reject ratio of a die-cut product is greatly lower, and meanwhile, the waste of the plastic film is obviously reduced.
Description
Technical Field
The invention relates to the technical field of plastic film processing, in particular to plastic film die cutting equipment.
Background
Plastic film is a very long, wide film structure that is typically stored by being wound onto a roll. When the novel paper roll needs to be used, the novel paper roll is unreeled out for use in a roll unreeling mode.
However, the plastic film is easily wrinkled during winding and unwinding due to its long, wide and thin structural characteristics. When the plastic film with folds is subjected to die cutting, the processed film product has higher reject ratio, and the material of the plastic film is also greatly wasted.
The existing plastic film die cutting equipment comprises a winding device, a die cutting device and an unwinding device, and the plastic film is subjected to die cutting processing in the winding and unwinding processes. The existing plastic film die cutting equipment does not flatten the unreeled plastic film before die cutting. Therefore, the folds caused in the early rolling process of the plastic film and the folds generated in the unreeling process are not well treated, the defective rate of the plastic film die-cut is high, and the plastic film is wasted greatly.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the plastic film die cutting equipment.
The purpose of the invention is realized by the following technical scheme:
a plastic film die cutting apparatus comprising: the device comprises an unwinding device, a winding device and a die cutting device, wherein the unwinding device and the winding device are respectively arranged on two sides of the die cutting device;
the winding device comprises a winding driving motor and a winding roller, and the winding roller is in driving connection with the winding driving motor;
the die cutting device comprises: the die cutting machine comprises a die cutting driving source, a power transmission mechanism, a die cutting mechanism and a die cutting workbench, wherein the power transmission mechanism is in driving connection with the die cutting driving source, the die cutting workbench is arranged right below the die cutting mechanism, and the power transmission mechanism drives the die cutting mechanism to reciprocate along a direction close to or far away from the die cutting workbench;
the die cutting device further comprises a film flattening mechanism, the film flattening mechanism is arranged on the die cutting workbench, and the film flattening mechanism is arranged at one end, close to the unwinding device, of the die cutting workbench.
In one embodiment, the film flattening mechanism comprises: the die cutting device comprises a fixed base, a cross beam and a plurality of flattening pressing components, wherein the fixed base is arranged on the die cutting workbench, the cross beam is connected with the fixed base, and the flattening pressing components are arranged along the central axis direction of the cross beam;
the flattening press holding assembly comprises: the elastic mechanism comprises a movable sleeve ring, an elastic knob and a flattening pressing piece, wherein the movable sleeve ring is sleeved on the cross beam in a penetrating mode, a through hole is formed in the movable sleeve ring, and the elastic knob is abutted to or separated from the cross beam after penetrating through the through hole.
In one embodiment, the through hole is provided with an internal thread, the knob is provided with an external thread, and the knob is in threaded connection with the movable sleeve ring.
In one embodiment, the cross beam is detachably connected with the fixed base.
In one embodiment, the die cutting device further comprises a flattening cross rod, and the flattening cross rod is arranged at one end, close to the winding device, of the die cutting workbench.
In one embodiment, the power transmission mechanism includes: belt drive wheel, first gear and second gear, belt drive wheel with cross cutting driving source drive is connected, first gear with belt drive wheel connects, the second gear with first gear engagement, the second gear still with die cutting mechanism drive is connected.
In one embodiment, the die-cutting mechanism comprises: the transmission rotating wheel, the eccentric shaft, the transmission connecting rod, the movable connecting piece, the die cutting head and the fixed guide piece are arranged on the die cutting head;
the transmission rotating wheel is in driving connection with the power transmission mechanism, and the eccentric shaft is connected with the transmission rotating wheel;
one end of the transmission connecting rod is sleeved on the eccentric shaft, and the other end of the transmission connecting rod is provided with a free universal ball head; the movable connecting piece is provided with an accommodating cavity, and the free universal ball head extends into the accommodating cavity of the movable connecting piece;
the fixed guide piece is provided with a limiting groove, the movable connecting piece is arranged in the limiting groove in a sliding mode, and the fixed guide piece is fixedly arranged above the die cutting workbench;
the die cutting head is connected with the movable connecting piece.
In one embodiment, the unwinding device includes: the device comprises an unwinding support, an unwinding roller, a pressing roller, an alarm mechanism and an alarm trigger control mechanism;
the unwinding support is rotatably arranged on the unwinding support, the pressing roller is connected with the unwinding support in a sliding mode, the alarm mechanism is arranged below the pressing roller, and the pressing roller triggers the alarm mechanism to give a material shortage alarm when sliding down along the unwinding support;
the alarm trigger control mechanism includes: the unwinding device comprises a rotating connecting rod, a return spring and a ratchet wheel, wherein the ratchet wheel is connected with the unwinding roller and is further rotatably arranged on the unwinding support;
the rotary connecting rod is rotatably arranged on the unreeling bracket and comprises a locking end and a resetting end; the locking end is provided with a propping part, the propping part props against or is separated from the ratchet groove of the ratchet wheel, and the reset acting end is connected with the unreeling bracket through the reset spring;
the pressing roller is provided with a propping action part, and the propping action part props against or separates from the reset action end.
In one embodiment, the return spring is connected with the unreeling bracket through a fixed connecting piece.
In one embodiment, the unwinding support is provided with a guide groove, and two ends of the pressing roller are movably clamped in the guide groove.
According to the plastic film die cutting equipment disclosed by the invention, after the plastic film is unreeled and before die cutting processing, the plastic film is flattened, so that the reject ratio of a die-cut product is greatly lower, and meanwhile, the waste of the plastic film is obviously reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the plastic film die-cutting apparatus of the present invention;
FIG. 2 is a schematic view of the die cutting apparatus shown in FIG. 1;
FIG. 3 is a schematic structural view of the die-cutting mechanism shown in FIG. 2;
FIG. 4 is an exploded view of the die cutting mechanism shown in FIG. 3;
FIG. 5 is a schematic structural diagram (one) of the film flattening mechanism shown in FIG. 1;
FIG. 6 is a schematic structural diagram (II) of the film flattening mechanism shown in FIG. 1;
fig. 7 is a schematic structural diagram of the unwinding device shown in fig. 1;
fig. 8 is a partial structural schematic view of the unwinding device shown in fig. 7;
fig. 9 is a partial structural schematic diagram of fig. 8.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the present invention discloses a plastic film die-cutting apparatus 10, comprising: unwinding device 20, coiling mechanism 30 and cutting device 40. Wherein, the unwinding device 20 and the winding device 30 are respectively disposed at two sides of the die cutting device 40. Specifically, the winding device 30 includes a winding driving motor, a winding roller 310 and a winding support 320, the winding roller 310 is in driving connection with the winding driving motor, and the winding roller 310 is rotatably disposed on the winding support 320.
As shown in fig. 1 and 2, in detail, the die cutting device 40 includes: a die cutting driving source (not shown), a power transmission mechanism 410, a die cutting mechanism 420, and a die cutting table 430. The power transmission mechanism 410 is in driving connection with a die cutting driving source, the die cutting table 430 is arranged right below the die cutting mechanism 420, and the power transmission mechanism 410 drives the die cutting mechanism 420 to reciprocate in a direction close to or far away from the die cutting table 430.
As shown in fig. 1, in particular, the die-cutting device 40 further includes a film flattening mechanism 440, the film flattening mechanism 440 is disposed on the die-cutting worktable 430, and the film flattening mechanism 440 is disposed at one end of the die-cutting worktable 430 close to the unwinding device 20.
As shown in fig. 1, in particular, a guide rod 450 is disposed at one side of the die cutting table 430 close to the unwinding device 20, so as to flatten and guide the plastic film 100 unwound from the unwinding roller 220, and accurately guide the plastic film 100 to the die cutting table 430.
As shown in fig. 1, 5 and 6, in detail, the film flattening mechanism 440 includes: the die-cutting worktable 430 comprises a fixed seat body 441, a cross beam 442 and a plurality of flattening pressing components 443, wherein the fixed seat body 441 is arranged on the die-cutting worktable 430, the cross beam 442 is connected with the fixed seat body 441, and the flattening pressing components 443 are arranged along the central axis direction of the cross beam 442. As a preferred embodiment, a plurality of flattening and holding components 443 are arranged at equal intervals along the central axis direction of the cross beam 442, so that the plastic film 100 is stressed more uniformly and the flattening effect is better.
As shown in fig. 6, in particular, the flattening holding-down assembly 443 includes: the movable lantern ring 444 is sleeved on the cross beam 442 in a penetrating mode, a through hole (not shown) is formed in the movable lantern ring 444, and the elastic knob 445 penetrates through the through hole and then abuts against or is separated from the cross beam 442. In this embodiment, the through hole has an internal thread, and the knob has an external thread, and the knob is screwed with the movable collar 444.
As shown in fig. 6, in particular, the cross beam 442 is detachably connected to the fixed housing 441, so as to facilitate the installation of the flat pressing component 443 on the cross beam 442 and the detachment of the flat pressing component 443 from the cross beam 442.
Specifically, as shown in fig. 1, the die-cutting device 40 further includes a flattening cross bar 460, and the flattening cross bar 460 is disposed at one end of the die-cutting worktable 430 near the winding device 30. In a preferred embodiment, the flattening rails 460 are arranged parallel to the scale.
As shown in fig. 2, specifically, the power transmission mechanism 410 includes: the die cutting machine comprises a belt driving wheel 411, a first gear 412 and a second gear 413, wherein the belt driving wheel 411 is in driving connection with a die cutting driving source, the first gear 412 is connected with the belt driving wheel 411, the second gear 413 is meshed with the first gear 412, and the second gear 413 is further in driving connection with a die cutting mechanism 420.
As shown in fig. 3 and 4, in particular, the die-cutting mechanism 420 includes: a driving wheel 421, an eccentric shaft 422, a driving link 423, a movable connection member 424, a die cutting head 425, and a fixed guide 426; the driving wheel 421 is connected to the power transmission mechanism 410, and the eccentric shaft 422 is connected to the driving wheel 421. One end of the transmission connecting rod 423 is sleeved on the eccentric shaft 422, and the other end is provided with a free universal ball 427. The movable connecting member 424 defines a receiving cavity 428, and the free universal ball 427 extends into the receiving cavity 428 of the movable connecting member 424. The fixed guide 426 is opened with a limiting groove 429, and the movable connecting member 424 is slidably disposed in the limiting groove 429. The fixing guide 426 is fixedly disposed above the die cutting table 430; die cutting head 425 is connected to movable connector 424. In this embodiment, the number of the driving pulleys 421 is two, two driving pulleys 421 are respectively connected to two ends of the eccentric shaft 422, and one of the driving pulleys 421 is connected to the second gear 413.
As shown in fig. 7 and 8, in detail, the unwinding device 20 includes: the device comprises an unwinding bracket 210, an unwinding roller 220, a pressing roller 230, an alarm mechanism 240 and an alarm triggering control mechanism. Wherein, unreel cylinder 220 and rotate the setting and unreel on support 210, compress tightly cylinder 230 with unreel support 210 sliding connection, alarm mechanism 240 sets up in the below of compressing tightly cylinder 230, and compress tightly cylinder 230 and trigger alarm mechanism 240 when unreeling support 210 gliding and carry out the starved feeding warning. The alarm triggering control mechanism includes: the unwinding device comprises a rotating link 251, a return spring 252 and a ratchet 253, wherein the ratchet 253 is connected with the unwinding roller 220, and the ratchet 253 is further rotatably arranged on the unwinding bracket 210. The rotation link 251 is rotatably disposed on the unwinding bracket 210, and the rotation link 251 includes a locking end 254 and a restoring end 255, the locking end 254 abuts against the ratchet groove 256 of the ratchet 253 or is disengaged from the ratchet groove 256, and the restoring end 255 is connected to the unwinding bracket 210 through the restoring spring 252. The pressing roller 230 is provided with a contact action portion 231, and the contact action portion 231 contacts or separates from the reset action end 255. In the present embodiment, the locking end 254 is provided with an abutting portion 257 engaged with the ratchet groove 256, and the abutting portion 257 abuts against the ratchet groove 256 of the ratchet 253 or is disengaged from the ratchet groove 256. The locking end 254 is more firmly and stably held against the ratchet groove 256 by the holding portion 257, thereby improving the system stability of the plastic film die-cutting apparatus 10.
As shown in fig. 8 and 9, in particular, the return spring 252 is connected to the unwinding bracket 210 through a fixing connection 258.
As shown in fig. 8, in particular, the unwinding bracket 210 is provided with a guide groove 211, and two ends of the pressing roller 230 are movably clamped in the guide groove 211.
As shown in fig. 8, in particular, the unwinding bracket 210 has a base 212, and the alarm mechanism 240 is disposed on the base 212 of the unwinding bracket 210. Specifically, an alarm trigger button 241 is provided on the top of the alarm mechanism 240, and when the pressing roller 230 falls to the bottom of the guide groove 211, the pressing roller 230 is pressed against the alarm trigger button 241.
The operation of the plastic film die-cutting device 10 is explained below (see fig. 1 to 9 together):
the plastic film 100 unwound from the unwinding roller 220 further extends to the winding roller 310 after passing through the die cutting table 430; in the unwinding and winding processes of the plastic film 100, when the plastic film 100 passes through the die cutting worktable 430, the die cutting mechanism 420 repeatedly performs die cutting processing on the plastic film 100 on the die cutting worktable 430 at a certain frequency; after the plastic film 100 unreeled from the unreeling roller 220 is subjected to die cutting processing, the plastic film 100 subjected to the die cutting processing is immediately reeled by the reeling roller 310, so that the plastic film 100 is easy to store and transport;
it should be noted that the die cutting driving source transmits power to the belt driving wheel 411 through a belt, so that the belt driving wheel 411 continuously rotates; when the belt transmission wheel 411 continuously rotates, the first gear 412 is driven to rotate, so that the second gear 413 is indirectly driven to continuously rotate; the second gear 413 continuously rotates and simultaneously drives the transmission rotating wheel 421 to continuously rotate, so as to indirectly drive the eccentric shaft 422 to make a circular motion by taking the central shaft of the transmission rotating wheel 421 as a center; when the eccentric shaft 422 makes a circular motion with the central shaft of the transmission rotating wheel 421 as the center, the end of the transmission connecting rod 423 sleeved on the eccentric shaft 422 is driven to make a circular motion along with the eccentric rod; in this process, since the free ball 427 of the transmission link 423 is received in the receiving cavity 428 of the movable connecting member 424, and the movable connecting member 424 is slidably disposed on the fixed guide 426; this allows the die-cutting head 425 to reciprocate closer to or farther from the die-cutting table 430 along the stopper groove 429 of the fixed guide 426, i.e., allows the die-cutting head 425 to continuously die-cut the plastic film 100 passing through the die-cutting table 430; the die cutting mode of converting circular motion into linear motion has high periodic precision, high die cutting precision and good stability;
in addition, it should be noted that the plastic film 100 unwound from the unwinding roller 220 extends from the bottom of the pressing roller 230 to the die cutting station 430 after passing through the pressing roller 230, and the plastic film 100 extends to the winding roller 310 after passing through the die cutting station 430;
when the plastic film 100 is in a static state, namely the whole plastic film die-cutting equipment 10 is in a standby state; at this time, the unwinding roller 220 is in a locked state, and the unwinding roller 220 and the winding roller 310 form a relative pulling state on the plastic film 100; thus, the unwinding roller 220 and the winding roller 310 perform opposite pulling and fixing actions on the plastic films 100 on the two sides of the pressing roller 230; therefore, the plastic film 100 can support the pressing roller 230, that is, the pressing roller 230 presses and holds the plastic film 100 by its own gravity, so as to press and flatten the plastic film 100; it should be noted that, at this time, the pressing roller 23050 is suspended in the air only by the supporting function of the plastic film 100;
it should be noted that, when the plastic film 100 is in a static state, the reset action end 255 has a tendency to rotate away from the ratchet wheel 253 under the elastic restoring force of the reset spring 252; thereby, the locking end 254 has a tendency to rotate toward the ratchet 253, and the locking end 254 is firmly pressed against the ratchet groove 256 of the ratchet 253; thereby, a locking action is formed on the ratchet 253, so that a locking action is indirectly formed on the unwinding roller 220, and the unwinding roller 220 is in a locking state;
at the moment of starting to unreel, the reeling driving motor drives the reeling roller 310 to rotate; the plastic film 100 is wound while the winding roller 310 rotates; however, at this time, the unwinding roller 220 is still in a locked state, that is, the unwinding roller 220 does not correspondingly unwind the plastic film 100 of a corresponding length; this causes the length of the plastic film 100 from the winding roller 310 to the unwinding roller 220 to be reduced, thereby causing the pressing roller 230 to move up along the guide groove 211; when the pressing roller 230 moves upwards along the guide groove 211, the pressing roller drives the abutting action part 231 to continuously approach the resetting action end 255 and finally abut against the resetting action end 255, and the resetting action end 255 rotates towards the direction close to the ratchet wheel 253, so that the locking end 254 rotates towards the direction far away from the ratchet wheel 253 and finally the locking end 254 is disengaged from the ratchet groove 256; when the locking end 254 is disengaged from the ratchet groove 256, the ratchet 253 is unlocked, so that the unwinding roller 220 is indirectly unlocked, and the unwinding roller 220 enters a free rotation state, that is, the plastic film die cutting device 10 enters a balanced unwinding and winding state;
when the plastic film 100 of the unwinding roller 220 is unwound, the plastic film 100 is completely separated from the unwinding roller 220; at this time, the pressing roller 230 loses the supporting force of the plastic film 100, and the pressing roller 230 falls down to the bottom of the guide groove 211 along the guide groove 211 under its own weight; when the pressing roller 230 falls to the bottom of the guide groove 211, the pressing roller 230 presses the alarm trigger button 241 of the alarm mechanism 240, so as to trigger an alarm and remind a worker to replace the unwinding roller 220 in time through the alarm; it is noted that the alert mechanism 240 may be purchased directly from the market;
it should be noted that, after the pressing roller 230 falls down for a certain distance along the guide groove 211, the abutting action part 231 is separated from the reset action end 255; at this time, the return action end 255 rotates in a direction away from the ratchet 253 by the elastic restoring force of the return spring 252; thereby enabling the locking end 254 to rotate towards the direction close to the ratchet 253, and finally enabling the locking end 254 to firmly abut against the ratchet groove 256 of the ratchet 253; further, the ratchet 253 is locked again;
it should be noted that the guide groove 211 performs directional limitation on the upward movement and the downward movement of the pressing roller 230, so as to ensure that the abutting action part 231 accurately abuts against the reset action end 255 and ensure that the pressing roller 230 accurately abuts against the alarm trigger button 241, thereby improving the system stability of the plastic film 100 unwinding mechanism for realizing the material shortage alarm based on the pressing roller 230;
it should be noted that the pressing roller 230 is closely matched with the unwinding roller 220, the support frame, the alarm mechanism 240, the plastic film 100, the winding roller 310 and the alarm trigger control mechanism to realize the material shortage alarm; moreover, the pressing roller 230 also stably and uniformly presses the plastic film 100 in the unwinding process of the plastic film 100, so that the plastic film 100 is flattened at one time;
it should be further noted that the plastic film 100 is subjected to the primary flattening treatment by the pressing roller 230, then extends to the flattening cross bar 460, and the plastic film 100 is subjected to the secondary flattening treatment by the flattening cross bar 460; the flattening cross bar 460 realizes accurate guiding of the plastic film 100 to the die-cutting worktable 430 and secondary flattening of the plastic film 100, so that the plastic film 100 enters the die-cutting worktable 430 in a more flat state; when the plastic film 100 extends to the table top of the die cutting workbench 430, the plastic film 100 is flattened for three times through the film flattening mechanism 440, so that the plastic film 100 is further ensured to be subjected to die cutting processing in a flattened state; the plastic film 100 is subjected to multiple flattening treatments from unreeling to die cutting, so that the flattening state of the plastic film 100 during die cutting is fully ensured;
it should be noted that the movable collar 444 is adjusted by rotating the tightening knob 445, so that the movable collar 444 is fixed relative to the cross beam 442 or slides freely along the cross beam 442; when the elastic knob 445 passes through the through hole and then tightly abuts against the cross beam 442, the movable collar 444 and the cross beam 442 are relatively fixed; when the tightening and loosening knob 445 is separated from the cross beam 442, the movable collar 444 can freely slide along the cross beam 442 and can rotate around the cross beam 442 at the same time; the position of the flattening sub-holding piece can be adjusted when the movable lantern ring 444 slides along the cross beam 442; when the movable sleeve 444 rotates around the cross beam 442, the pressing angle of the flattening sub-holding sheet can be adjusted to meet the requirements of different pressing forces or the requirements of different types and different thicknesses of the plastic film 100;
it should be noted that after the plastic film 100 is subjected to the die cutting process and before the plastic film 100 is wound, the plastic film 100 is again flattened by the flattening cross bar 460, so that the flattened state of the plastic film 100 when the plastic film 100 is wound is ensured, and the flattened state of the plastic film 100 on the die cutting workbench 430 is further ensured.
The plastic film die cutting equipment disclosed by the invention fully ensures the flattening state of the plastic film during die cutting processing, so that the reject ratio of die-cut products is greatly lower, and meanwhile, the waste of the plastic film is remarkably reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A plastic film die cutting apparatus comprising: the device comprises an unwinding device, a winding device and a die cutting device, wherein the unwinding device and the winding device are respectively arranged on two sides of the die cutting device;
the winding device comprises a winding driving motor and a winding roller, and the winding roller is in driving connection with the winding driving motor;
the die cutting device comprises: the die cutting machine comprises a die cutting driving source, a power transmission mechanism, a die cutting mechanism and a die cutting workbench, wherein the power transmission mechanism is in driving connection with the die cutting driving source, the die cutting workbench is arranged right below the die cutting mechanism, and the power transmission mechanism drives the die cutting mechanism to reciprocate along a direction close to or far away from the die cutting workbench;
the die cutting device further comprises a film flattening mechanism, the film flattening mechanism is arranged on the die cutting workbench, and the film flattening mechanism is arranged at one end, close to the unwinding device, of the die cutting workbench.
2. The plastic film die cutting apparatus of claim 1 wherein said film flattening mechanism comprises: the die cutting device comprises a fixed base, a cross beam and a plurality of flattening pressing components, wherein the fixed base is arranged on the die cutting workbench, the cross beam is connected with the fixed base, and the flattening pressing components are arranged along the central axis direction of the cross beam;
the flattening press holding assembly comprises: the elastic mechanism comprises a movable sleeve ring, an elastic knob and a flattening pressing piece, wherein the movable sleeve ring is sleeved on the cross beam in a penetrating mode, a through hole is formed in the movable sleeve ring, and the elastic knob is abutted to or separated from the cross beam after penetrating through the through hole.
3. The plastic film die-cutting apparatus as claimed in claim 2, wherein said through hole is provided with an internal thread, said knob is provided with an external thread, and said knob is in threaded connection with said movable collar.
4. The plastic film die cutting apparatus of claim 3 wherein said cross beam is removably connected to said stationary housing.
5. The plastic film die cutting apparatus of claim 3 wherein said die cutting device further includes a spreader bar disposed at an end of said die cutting table adjacent said winder.
6. The plastic film die cutting apparatus of claim 5 wherein said power transmission mechanism comprises: belt drive wheel, first gear and second gear, belt drive wheel with cross cutting driving source drive is connected, first gear with belt drive wheel connects, the second gear with first gear engagement, the second gear still with die cutting mechanism drive is connected.
7. The plastic film die cutting apparatus of claim 6 wherein said die cutting mechanism comprises: the transmission rotating wheel, the eccentric shaft, the transmission connecting rod, the movable connecting piece, the die cutting head and the fixed guide piece are arranged on the die cutting head;
the transmission rotating wheel is in driving connection with the power transmission mechanism, and the eccentric shaft is connected with the transmission rotating wheel;
one end of the transmission connecting rod is sleeved on the eccentric shaft, and the other end of the transmission connecting rod is provided with a free universal ball head; the movable connecting piece is provided with an accommodating cavity, and the free universal ball head extends into the accommodating cavity of the movable connecting piece;
the fixed guide piece is provided with a limiting groove, the movable connecting piece is arranged in the limiting groove in a sliding mode, and the fixed guide piece is fixedly arranged above the die cutting workbench;
the die cutting head is connected with the movable connecting piece.
8. The plastic film die cutting apparatus of claim 1, wherein said unwinding means comprises: the device comprises an unwinding support, an unwinding roller, a pressing roller, an alarm mechanism and an alarm trigger control mechanism;
the unwinding support is rotatably arranged on the unwinding support, the pressing roller is connected with the unwinding support in a sliding mode, the alarm mechanism is arranged below the pressing roller, and the pressing roller triggers the alarm mechanism to give a material shortage alarm when sliding down along the unwinding support;
the alarm trigger control mechanism includes: the unwinding device comprises a rotating connecting rod, a return spring and a ratchet wheel, wherein the ratchet wheel is connected with the unwinding roller and is further rotatably arranged on the unwinding support;
the rotary connecting rod is rotatably arranged on the unreeling bracket and comprises a locking end and a resetting end; the locking end is provided with a propping part, the propping part props against or is separated from the ratchet groove of the ratchet wheel, and the reset acting end is connected with the unreeling bracket through the reset spring;
the pressing roller is provided with a propping action part, and the propping action part props against or separates from the reset action end.
9. The plastic film die cutting apparatus of claim 8, wherein said return spring is connected to said unwind stand by a fixed connection.
10. The plastic film die-cutting apparatus as claimed in claim 8, wherein the unwinding bracket is provided with a guide groove, and both ends of the pressing roller are movably engaged in the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104284.0A CN112125027A (en) | 2020-10-15 | 2020-10-15 | Plastic film die cutting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104284.0A CN112125027A (en) | 2020-10-15 | 2020-10-15 | Plastic film die cutting equipment |
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| CN112125027A true CN112125027A (en) | 2020-12-25 |
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| CN202011104284.0A Withdrawn CN112125027A (en) | 2020-10-15 | 2020-10-15 | Plastic film die cutting equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960445A (en) * | 2021-02-03 | 2021-06-15 | 广州市泰连电子商务有限公司 | Production collecting device for plastic films |
| CN114193547A (en) * | 2021-11-15 | 2022-03-18 | 苏州思立达电子有限公司 | Die cutting process capable of achieving multi-angle cutting function |
| CN114194884A (en) * | 2021-12-24 | 2022-03-18 | 安徽金日包装有限公司 | Unreeling device with offset limiting function |
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| CN2892773Y (en) * | 2005-12-26 | 2007-04-25 | 上海亚华印刷机械有限公司 | Paper collecting and paper pressing device for automatic mould cutting machine poker cards |
| CN203818238U (en) * | 2014-02-13 | 2014-09-10 | 梁麒瑞 | Rotary computer high-speed platen die-cutting machine |
| CN204976726U (en) * | 2015-09-30 | 2016-01-20 | 深圳市科晶智达科技有限公司 | Cut -parts device |
| CN205096312U (en) * | 2015-11-09 | 2016-03-23 | 成都金科达铝业有限公司 | Cross cutting punch press based on process aluminum product |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112960445A (en) * | 2021-02-03 | 2021-06-15 | 广州市泰连电子商务有限公司 | Production collecting device for plastic films |
| CN114193547A (en) * | 2021-11-15 | 2022-03-18 | 苏州思立达电子有限公司 | Die cutting process capable of achieving multi-angle cutting function |
| CN114194884A (en) * | 2021-12-24 | 2022-03-18 | 安徽金日包装有限公司 | Unreeling device with offset limiting function |
| CN114194884B (en) * | 2021-12-24 | 2023-07-07 | 安徽金日包装有限公司 | Unreeling device with offset limiting function |
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