Laminating machine

Abstract

The utility model relates to a laminator, which comprises a heating roller group, a laminating roller group, a laminating roller group, a laminating roller group and a laminating roller group, and is characterized in that the heating roller group comprises a first heating rubber roller and a second heating rubber roller; and the paper feeding limiting optical fiber sensor is used for sensing the to-be-laminated file fed into the heating rubber roller set. An encoding wheel of the encoder is in contact with the first heating rubber roller; the conveying rubber roller group is used for conveying the laminated part coated with the laminated film; the first driving motor is in transmission connection with the conveying rubber roller group; the cutter assembly is used for cutting the laminated part coated with the laminated film and conveyed by the conveying roller set; and the controller is connected to the encoder, the paper feeding limiting optical fiber sensor, the first driving motor and the cutter assembly. And the distance between two different continuous files is completely consistent, so that the laminator is more accurate in cutting.

Description

Technical Field

[0001] The present application relates to the field of laminating technology, and in particular to a laminating machine. Background Art

[0002] A laminator, also known as a laminator, laminator, laminator, pouch laminator, or film laminator, is primarily composed of a drive system, a heating and temperature control system, an operating control panel, front and rear rubber rollers, and other components. It is a specialized device for laminating photos or documents.

[0003] After laminating the documents, the existing laminator cuts the laminated film around the laminated documents to obtain laminated parts. However, when the motor of the laminator is suddenly started, the rubber roller and the laminating film slip, resulting in a smaller set distance between adjacent documents. Or, due to excessive tension in the roll film, the laminating film moves less, and the motor moves the set distance, but the laminating film does not move the set distance, resulting in a smaller set distance between adjacent documents, thereby causing the laminating machine to be unable to accurately cut the laminated film between two adjacent documents. Utility Model Content

[0004] In view of the above problems, the present application provides a laminator to solve the problem that the existing laminator causes slippage between the rubber roller and the laminating film due to sudden start-up of the motor or excessive tension in the rolled film, resulting in less laminating film, making the setting space between adjacent files smaller, and thus causing the laminator to be unable to accurately cut the laminating film between two adjacent files.

[0005] To achieve the above object, the inventor provides a laminating machine, comprising:

[0006] A heating roller assembly, the heating roller assembly comprising a first heating rubber roller and a second heating rubber roller in contact with each other, wherein the first heating rubber roller and the second heating rubber roller are both provided with a heating device;

[0007] The paper feed limit fiber optic sensor is used to sense the document to be laminarized that is fed into the heated rubber roller group.

[0008] An encoder, wherein the encoder wheel of the encoder contacts the first heated rubber roller;

[0009] A conveying rubber roller group, which includes multiple conveying rubber roller groups and is used to convey the laminated parts covered with the laminate film;

[0010] a first drive motor, the first drive motor being transmission-connected to the conveying rubber roller assembly;

[0011] A cutter assembly, the cutter assembly being used to cut the laminated parts covered with the laminated film conveyed by the conveyor roller group;

[0012] A controller connected to the encoder, the paper feed limit fiber optic sensor, the first drive motor and the cutter assembly;

[0013] In some embodiments, the conveying rubber roller group includes a first conveying rubber roller group, a second conveying rubber roller group, and a third conveying rubber roller group;

[0014] The cutter assembly includes a longitudinal cutter assembly and a transverse cutter assembly;

[0015] The longitudinal cutter group includes two longitudinal cutters, and the two longitudinal cutters are symmetrically arranged between the first conveying rubber roller group and the second conveying rubber roller group;

[0016] The transverse cutter assembly comprises:

[0017] A tool holder, the tool holder comprising a tool groove and a guide hole for the plastic film to pass through, the guide hole and the tool groove being perpendicular to each other, and the guide hole passing through the tool groove;

[0018] A transverse cutter, wherein the transverse cutter is slidably arranged in the cutter groove, and the cutter body of the transverse cutter is provided with transverse cutting surfaces on both sides and rounded cutting surfaces on both sides of the transverse cutting surfaces;

[0019] A driving mechanism is connected to the transverse cutter, and is used to drive the transverse cutter to slide back and forth in the knife groove, thereby cutting the overmolded film in the guide hole.

[0020] In some embodiments, the driving mechanism comprises:

[0021] The second drive motor,

[0022] an eccentric shaft, the eccentric shaft being transmission-connected to the second drive motor;

[0023] A connecting member, one end of which is arranged on the eccentric shaft, and the other end of which is connected to the transverse cutter, and the connecting member reciprocates as the eccentric shaft rotates.

[0024] In some embodiments, there are two connecting members, which are respectively arranged at both ends of the transverse cutter.

[0025] In some embodiments, the eccentric shaft is connected to the first drive motor via a belt drive.

[0026] In some embodiments, the shape of the groove body of the knife groove is adapted to the shape of the knife body of the transverse cutter.

[0027] In some embodiments, the distance between the two transverse cut surfaces of the transverse cutter is 2.5-4 mm.

[0028] In some embodiments, further comprising:

[0029] The waste film cutting mechanism comprises:

[0030] A cutting frame, wherein the cutting frame is provided with a cutting opening for the waste film to pass through,

[0031] A waste film cutter, the waste film cutter is arranged on the cutting frame, and one end of the waste film cutter is provided with a transmission hole;

[0032] A circular transmission block is arranged in the transmission hole of the waste film cutter.

[0033] A third drive motor is connected to the eccentric point of the circular transmission block.

[0034] In some embodiments, further comprising:

[0035] A waste film conveying assembly, comprising:

[0036] a fourth conveying rubber roller group, the fourth conveying rubber roller group being used to convey the waste film generated after cutting by the cutter assembly into the waste film cutting mechanism;

[0037] The fourth drive motor is connected to the fourth conveying rubber roller group in a transmission manner.

[0038] In some embodiments, the heating device is a heating lamp.

[0039] Different from the existing technology, the above technical solution, when feeding the document into the heating roller group for lamination, senses the end of the current document through the paper feed limit fiber optic sensor. When the end of the current document is sensed, the controller starts the calculation function of the encoder to calculate the distance between two adjacent photos, wherein the encoder's encoding wheel is in contact with the first heating rubber roller of the heating roller group, and the encoding wheel rotates as the first heating rubber roller rotates. The encoder can calculate the distance the first heating rubber roller rotates, and the controller obtains the actual spacing between adjacent documents based on the distance the first heating rubber roller rotates from sensing the end of the current document through the paper feed limit fiber optic sensor to sensing the head of the next document; the first drive motor is controlled to move according to whether the calculated actual distance between adjacent documents meets the running distance set by the first drive motor. When the actual spacing distance between adjacent documents calculated by the encoder is less than the running distance set by the first drive motor, the controller issues an instruction to make the first drive motor continue to complete the deviation distance, thereby ensuring that the spacing between two different consecutive documents is completely consistent, making the laminator cutting more accurate.

[0040] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of this application. In order to enable ordinary technicians in this field to understand the technical solution of this application more clearly, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purposes and other purposes, features and advantages of this application easier to understand, the following is an explanation in combination with the specific implementation methods and drawings of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of this application and other related contents, and are not to be considered as limiting this application.

[0042] In the drawings of the specification:

[0043] Figure 1 A structural schematic diagram of the laminating machine described in the specific embodiment;

[0044] Figure 2 Another structural schematic diagram of the laminating machine described in the specific embodiment;

[0045] Figure 3 A structural schematic diagram of the tool holder described in the specific implementation method;

[0046] Figure 4 A schematic structural diagram of the transverse cutter according to the specific embodiment;

[0047] Figure 5 A structural schematic diagram of the waste film cutting mechanism described in the specific embodiment;

[0048] Figure 6 It is a structural schematic diagram of the waste film cutting mechanism described in a specific implementation method.

[0049] The reference numerals in the above drawings are described as follows:

[0050] 111. The first heating rubber roller,

[0051] 112. Second heating rubber roller,

[0052] 113. Heating device,

[0053] 120. Paper feed limit fiber optic sensor,

[0054] 131, code wheel,

[0055] 141. First rubber roller,

[0056] 142. Second rubber roller,

[0057] 143. The third rubber roller,

[0058] 144. The fourth rubber roller,

[0059] 145. Fifth rubber roller,

[0060] 146. Sixth rubber roller,

[0061] 150. A first drive motor,

[0062] 161. Longitudinal cutter,

[0063] 162. Knife holder,

[0064] 1621, knife groove,

[0065] 163. Horizontal cutter,

[0066] 1631, transverse section;

[0067] 1632, rounded corners;

[0068] 164. Second drive motor,

[0069] 165. Eccentric shaft,

[0070] 166. Connectors,

[0071] 170. Waste film cutting mechanism,

[0072] 171, cutting frame,

[0073] 1711, cutting edge,

[0074] 172. Waste film cutter,

[0075] 173. Circular transmission block,

[0076] 174. The third drive motor,

[0077] 180. Waste film conveying component.

[0078] 181. Seventh rubber roller,

[0079] 182. The eighth rubber roller,

[0080] 183. Fourth drive motor. DETAILED DESCRIPTION

[0081] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0082] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0083] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0084] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0085] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0086] Without further limitations, in this application, the words "include", "comprise", "have" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0087] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means two or more (including two), and similar expressions related to "multiple," such as "multiple groups" and "multiple times," are also understood in this manner, unless otherwise specifically defined.

[0088] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0089] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0090] See also Figure 1-2 , this embodiment provides a laminator, comprising:

[0091] A heating roller assembly, the heating roller assembly comprising a first heating rubber roller 111 and a second heating rubber roller 112 in contact with each other, wherein the first heating rubber roller 111 and the second heating rubber roller 112 are both provided with a heating device 113;

[0092] The paper feed limit optical fiber sensor 120 is used to sense the document to be laminarized that is fed into the heating rubber roller group.

[0093] An encoder, wherein the encoder wheel 131 of the encoder is in contact with the first heating rubber roller 111;

[0094] A conveying rubber roller group, which includes multiple conveying rubber roller groups and is used to convey the laminated parts covered with the laminate film;

[0095] A first drive motor 150, the first drive motor 150 is transmission-connected to the conveying rubber roller assembly;

[0096] A cutter assembly, the cutter assembly being used to cut the laminated parts covered with the laminated film conveyed by the conveyor roller group;

[0097] A controller connected to the encoder, the paper feed limit optical fiber sensor 120, the first drive motor 150 and the cutter assembly;

[0098] When laminating a document with laminate, the laminated document is sent to the heating roller group. The first heating rubber roller 111 and the second heating rubber roller 112 of the heating roller group squeeze the air between the laminating film and the document. At the same time, the heating device 113 heats the first heating rubber roller 111 and the second heating rubber roller 112, so that the laminating film is wrapped around the document to be laminarized, and then sent to the conveying rubber roller group, and then sent to the cutter assembly to cut the laminating film around the laminated document to obtain the required laminated part. When a document is fed into the heating roller group for lamination, the end of the current document is sensed by the paper feed limit fiber optic sensor 120. When the end of the current document is sensed, the controller activates the calculation function of the encoder to calculate the distance between two adjacent photos. The encoder's encoding wheel 131 contacts the first heating rubber roller 111 of the heating roller group, and the encoding wheel 131 rotates as the first heating rubber roller 111 rotates. The encoder can calculate the distance the first heating rubber roller 111 rotates. The controller obtains the actual distance between adjacent documents based on the distance the first heating rubber roller 111 rotates from the time the paper feed limit fiber optic sensor 120 senses the end of the current document to the time the first document begins to be sensed. The first drive motor is controlled to move based on whether the calculated actual distance between adjacent documents meets the running distance set by the first drive motor. When the actual distance between adjacent documents calculated by the encoder is less than the running distance set by the first drive motor, the controller issues a command to cause the first drive motor to continue to complete the deviation distance, thereby ensuring that the distance between two consecutive documents is completely consistent, making the laminator cutting more accurate.

[0099] In some embodiments, the transfer rubber roller group includes a first transfer rubber roller group, a second transfer rubber roller group, and a third transfer rubber roller group; wherein the first transfer rubber roller group includes a first rubber roller 141 and a second rubber roller 142, the second transfer rubber roller group includes a third rubber roller 143 and a fourth rubber roller 144, and the third transfer rubber roller group includes a fifth rubber roller 145 and a sixth rubber roller 146;

[0100] The cutter assembly includes a longitudinal cutter 161 assembly and a transverse cutter 163 assembly;

[0101] The longitudinal cutter group includes two longitudinal cutters 161, and the two longitudinal cutters 161 are symmetrically arranged between the first conveying rubber roller group and the second conveying rubber roller group;

[0102] See also Figure 1-4 The transverse cutter assembly is arranged between the second conveying rubber roller group and the third conveying rubber roller group, and the transverse cutter assembly includes:

[0103] The tool holder 162 includes a tool groove 1621 and a guide hole for the plastic film to pass through. The guide hole and the tool groove 1621 are perpendicular to each other, and the guide hole passes through the tool groove 1621;

[0104] A transverse cutter 163 is slidably disposed in the cutter groove 1621 , and a transverse cutting surface 1631 is provided on both sides of the cutter body of the transverse cutter 163 , and rounded cutting surfaces 1632 are provided on both sides of the transverse cutting surface 1631 ;

[0105] The driving mechanism is connected to the transverse cutter 163 and is used to drive the transverse cutter 163 to slide back and forth in the knife groove 1621 to cut the overmolded film in the guide hole.

[0106] When the cutter assembly cuts the laminated film around the laminated document, it first cuts the laminated film on both sides of the laminated document through the two longitudinal cutters 161 between the first conveying rubber roller group and the second conveying rubber roller group, and then sends it to the transverse cutter assembly between the second conveying rubber roller group and the third conveying rubber roller group for cutting. The laminated document passes through the guide hole on the knife holder 162. At the same time, the transverse cutter 163 reciprocates in the knife groove 1621 of the knife holder 162 under the drive of the driving mechanism to transversely cut the plastic film between the two adjacent documents passing through the guide hole. Transverse cutting surfaces 1631 are provided on both sides of the bottom of the transverse cutter 163, and rounded cutting surfaces 1632 are provided on both sides of the transverse cutting surface 1631, which not only realizes the transverse cutting of the plastic film between the two laminated parts, but also realizes the rounded corner cutting of the plastic film.

[0107] In other embodiments, there are two conveying rubber roller groups, and the cutter assembly is arranged between the two conveying rubber roller groups. The cutter assembly includes:

[0108] A tool holder 162 , the tool holder 162 including a tool slot 1621 and a guide hole for the plastic part to pass through, the guide hole and the tool slot 1621 being perpendicular to each other, and the guide hole passing through the tool slot 1621 ;

[0109] Two longitudinal cutters 161 are provided, one on each side of the opening of the guide hole;

[0110] A transverse cutter 163 is slidably disposed in the cutter groove 1621 , and a transverse cutting surface 1631 is provided on both sides of the cutter body of the transverse cutter 163 , and rounded cutting surfaces 1632 are provided on both sides of the transverse cutting surface 1631 ;

[0111] The driving mechanism is connected to the transverse cutter 163 and is used to drive the transverse cutter 163 to slide back and forth in the knife groove 1621, thereby cutting the plastic film between two consecutive adjacent plastic parts in the guide hole.

[0112] When cutting the plastic film around the laminar document, the laminar document passes through the guide hole on the knife holder 162, and the plastic film on both sides of the laminar document is cut longitudinally by the longitudinal cutters 161 on both sides of the opening of the guide hole. At the same time, the transverse cutter 163 reciprocates in the knife groove 1621 of the knife holder 162 under the drive of the driving mechanism to cut the plastic film between the two laminating parts passing through the guide hole transversely, and transverse cutting surfaces 1631 are provided on both sides of the bottom of the cutter and rounded cutting surfaces 1632 are provided on both sides of the transverse cutting surface 1631. When the laminar film between the two documents is cut transversely, the laminar film at the four corners of the laminar document is also cut with rounded corners. The cutter assembly can simultaneously achieve longitudinal cutting, transverse cutting and rounded corner cutting of the laminar film on the laminar document.

[0113] See also Figure 1-2 In some embodiments, the driving mechanism includes:

[0114] The second drive motor 164,

[0115] an eccentric shaft 165 , the eccentric shaft 165 being transmission-connected to the second drive motor 164 ;

[0116] A connecting member 166 , one end of which is disposed on the eccentric shaft 165 , and the other end of which is connected to the transverse cutter 163 , wherein the connecting member 166 reciprocates as the eccentric shaft 165 rotates.

[0117] The drive mechanism utilizes a second drive motor 164 to rotate the eccentric shaft 165. The rotation of the eccentric shaft 165 drives the connecting member 166 to reciprocate. The reciprocating motion of the connecting member 166 drives the transverse cutter 163 to reciprocate within the blade slot 1621 of the blade holder 162, thereby enabling the transverse cutter 163 to cut the plastic film between two laminating parts. Two connecting members 166 are provided, one at each end of the transverse cutter 163. By providing two connecting members 166 at each end of the transverse cutter 163 to drive the transverse cutter 163 to cut, the transverse cutter 163 can cut the plastic film between two adjacent laminating parts more evenly. Among them, the eccentric shaft 165 has a raised portion. During the rotation of the eccentric shaft 165, the raised portion on the eccentric shaft 165 will drive the connecting member 166 to perform eccentric circular motion, thereby realizing the reciprocating motion of the connecting member 166, and then driving the transverse cutter 163 to reciprocate in the knife groove 1621, so that the transverse cutter 163 cuts the plastic film of the passing plastic part.

[0118] In some embodiments, the eccentric shaft 165 is connected to the second drive motor 164 via a belt transmission. The belt can be used to drive the eccentric shaft 165 to rotate. In other embodiments, the second drive motor 164 can also be connected to the eccentric shaft 165 via gears.

[0119] In some embodiments, the shape of the blade groove 1621 matches the shape of the blade of the transverse cutter 163. Matching the shape of the transverse cutter 163 with the shape of the blade groove 1621 allows the blade groove 1621 to guide and restrict the transverse cutter 163, thereby allowing the transverse cutter 163 to more accurately cut the plastic film between the two overmolded parts.

[0120] In some embodiments, the distance between the two transverse cut surfaces 1631 of the transverse cutter 163 is 2.5-4 mm. By setting the distance between the two transverse cut surfaces 1631121 of the transverse cutter 163 to 2-4 mm, waste film generated during the cutting process of plastic film between two overmolded parts can be reduced. Preferably, the distance between the two transverse cut surfaces 1631 is 2.5 mm, which ensures the strength and service life of the cutter while minimizing waste film.

[0121] See also Figure 1-2 and Figure 5 , in some embodiments, further comprising:

[0122] The waste film cutting mechanism 170 includes:

[0123] The cutting frame 171 is provided with a cutting opening 1711 for the waste film to pass through.

[0124] A waste film cutter 172 is provided on the cutting frame 171 , and a transmission hole is provided at one end of the waste film cutter 172 ;

[0125] The circular transmission block 173 is arranged in the transmission hole of the waste film cutter 172.

[0126] The third drive motor 174 is in driving connection with the eccentric point of the circular transmission block 173 .

[0127] When the cutter assembly cuts the laminated film on both sides of the laminated document to produce waste film, the waste film is fed into the waste film cutting mechanism 170, and the waste film passes through the cutting opening 1711 on the cutting frame 171. The third drive motor 174 drives the circular transmission block 173 to rotate eccentrically, and the eccentric rotation of the circular transmission block 173 drives the waste film cutter 172 to reciprocate in the cutting opening 1711 of the cutting frame 171, and the second waste film cutter 172 cuts the waste film fed into the cutting opening 1711.

[0128] See also Figure 1-2 and Figure 6 , in some embodiments, further comprising:

[0129] The waste film conveying assembly 180 includes:

[0130] a fourth transfer rubber roller group, which is used to feed the waste film generated after the cutting by the cutter assembly into the waste film cutting mechanism 170; wherein the fourth transfer rubber roller group includes a seventh rubber roller 181 and an eighth rubber roller 182;

[0131] The fourth driving motor 183 is connected to the fourth conveying rubber roller group.

[0132] The fourth driving motor 183 drives the fourth conveying rubber roller group to convey the waste film generated after the cutting by the cutter assembly into the waste film cutting mechanism 170 through the fourth conveying rubber roller group.

[0133] In some embodiments, the heating device 113 is a heating lamp. The heating lamp heats the first heating rubber roller 111 and the second heating rubber roller 112, thereby causing the plastic film to be coated on the document. In other embodiments, the heating device 113 can also be a heating wire, a heating rod, etc.

[0134] In some embodiments, the first drive motor 150 , the second drive motor 164 , the third drive motor 174 , and the fourth drive motor 183 are electric motors, hydraulic motors, or pneumatic motors.

[0135] In some embodiments, taking the laminating of photos by a laminator as an example, after the first photo enters the first heated rubber roller 111 and the second heated rubber roller 112 for lamination, the first photo moves backward under the drive of the first drive motor 150, and the end of the first photo runs to the paper feed limit fiber optic sensor 120. At this time, the laminar photos continue to run for a distance, which is defined as the photo spacing. This spacing is the same between any two consecutive photos. At this time, the first drive motor 150 stops running. The photo running mechanism conveys the second photo to the paper feed limit fiber optic sensor 120. At this time, the photo running mechanism and the first drive motor 150 operate synchronously, thereby forming a continuous series of laminar photos.

[0136] The first drive motor 150 drives the first rubber roller 141, the second rubber roller 142, the third rubber roller 143 and the fourth rubber roller 144 to drive the laminar film. The laminar film may slip, which leads to inconsistent photo spacing. In terms of the program, when the end of the first photo runs to the paper feed limit fiber optic sensor 120, the calculation function of the encoder is started to calculate whether the actual running photo spacing meets the running distance set by the first drive motor 150. If the distance calculated by the encoder is shorter than the set distance, then the distance of the negative deviation part will be further input into the controller, and the controller will issue an instruction to require the first drive motor 150 to continue to complete the negative deviation number calculated by the encoder, thereby ensuring that the spacing between two different consecutive photos is completely consistent. The specific calculation process is as follows:

[0137] 1. The end of the first photo reaches the paper feed limit fiber optic sensor 120;

[0138] 2. Start the encoder encoding function;

[0139] 3. The first photo continues to run, and the distance between it and the second photo is pulled out to form a photo spacing;

[0140] 4. The encoder reads the value and checks whether the value meets the photo spacing;

[0141] 5. If satisfied, wait for the second photo to reach the paper feed limit fiber optic sensor 120;

[0142] 6. The first and second photos will run synchronously;

[0143] 7. If the encoder reads a value that does not meet the photo spacing;

[0144] 8. The negative deviation digital input controller sends a command to the first drive motor 150, requiring the first drive motor 150 to continue running the negative deviation value given by the encoder.

[0145] 9. Wait for the second photo to reach the paper feed limit fiber optic sensor 120;

[0146] The first and second photos run synchronously.

[0147] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A laminator, characterized in that: include: A heating roller assembly, the heating roller assembly comprising a first heating rubber roller and a second heating rubber roller in contact with each other, wherein the first heating rubber roller and the second heating rubber roller are both provided with a heating device; A paper feed limit fiber optic sensor, which is used to sense the document to be laminated that is fed into the heated rubber roller group; An encoder, wherein the encoder wheel of the encoder contacts the first heated rubber roller; A conveying rubber roller group, which includes multiple conveying rubber roller groups and is used to convey the laminated parts covered with the laminate film; a first drive motor, the first drive motor being transmission-connected to the conveying rubber roller assembly; A cutter assembly, the cutter assembly being used to cut the laminated parts covered with the laminated film conveyed by the conveyor roller group; A controller is connected to the encoder, the paper feed limit optical fiber sensor, the first drive motor and the cutter assembly.

2. The laminating machine according to claim 1, characterized in that: The transmission rubber roller group includes a first transmission rubber roller group, a second transmission rubber roller group and a third transmission rubber roller group; The cutter assembly includes a longitudinal cutter assembly and a transverse cutter assembly; The longitudinal cutter group includes two longitudinal cutters, and the two longitudinal cutters are symmetrically arranged between the first conveying rubber roller group and the second conveying rubber roller group; The transverse cutter assembly comprises: A tool holder, the tool holder comprising a tool groove and a guide hole for the plastic film to pass through, the guide hole and the tool groove being perpendicular to each other, and the guide hole passing through the tool groove; A transverse cutter, wherein the transverse cutter is slidably arranged in the cutter groove, and the cutter body of the transverse cutter is provided with transverse cutting surfaces on both sides and rounded cutting surfaces on both sides of the transverse cutting surfaces; A driving mechanism is connected to the transverse cutter, and is used to drive the transverse cutter to slide back and forth in the knife groove, thereby cutting the overmolded film in the guide hole.

3. The laminating machine according to claim 2, characterized in that: The driving mechanism comprises: The second drive motor, an eccentric shaft, the eccentric shaft being transmission-connected to the second drive motor; A connecting member, one end of which is arranged on the eccentric shaft, and the other end of which is connected to the transverse cutter, and the connecting member reciprocates as the eccentric shaft rotates.

4. The laminating machine according to claim 3, characterized in that: There are two connecting pieces, which are respectively arranged at two ends of the transverse cutter.

5. The laminating machine according to claim 3, characterized in that: The eccentric shaft is connected to the first driving motor via a belt transmission.

6. The laminating machine according to claim 2, characterized in that: The shape of the groove body of the knife groove is adapted to the shape of the knife body of the transverse cutter.

7. The laminator according to claim 2, characterized in that: The distance between the two transverse cut surfaces of the transverse cutter is 2.5-4 mm.

8. The laminator according to claim 1, characterized in that: Also includes: The waste film cutting mechanism comprises: A cutting frame, wherein the cutting frame is provided with a cutting opening for the waste film to pass through, A waste film cutter, the waste film cutter is arranged on the cutting frame, and one end of the waste film cutter is provided with a transmission hole; A circular transmission block is arranged in the transmission hole of the waste film cutter. A third drive motor is connected to the eccentric point of the circular transmission block.

9. The laminator according to claim 8, characterized in that: Also includes: A waste film conveying assembly, comprising: a fourth conveying rubber roller group, the fourth conveying rubber roller group being used to convey the waste film generated after cutting by the cutter assembly into the waste film cutting mechanism; The fourth drive motor is connected to the fourth conveying rubber roller group in a transmission manner.

10. The laminator according to claim 1, characterized in that: The heating device is a heating lamp.

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