CN112092491B

CN112092491B - Printing machine is used in production of container bag of establishing protection guardrail clearance adjustable

Info

Publication number: CN112092491B
Application number: CN202010770150.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Chongqing Guosheng Packaging Co ltd
Current assignee: Chongqing Guosheng Packaging Co ltd
Priority date: 2016-12-09
Filing date: 2016-12-09
Publication date: 2022-07-01
Anticipated expiration: 2036-12-09
Also published as: CN112092491A; CN106945400A; CN106945400B

Abstract

The invention relates to equipment for producing paper bags. The utility model provides a set up printing machine for production of guardrail clearance adjustable container bag, includes the frame, and the frame is equipped with printing plate fixed roll, paper backing roll and paper backing roll driving motor, forms the paper passageway between printing plate fixed roll and the paper backing roll, and the paper backing roll is the rubber covered roller, and the paper backing roll links together with paper backing roll driving motor, and the printing plate fixed roll is located the top of paper backing roll, and the printing plate fixed roll is connected through the seat with going up and down in the frame, the entrance point and the exit end of paper passageway all are equipped with safety barrier, are equipped with the emergency stop switch that control paper backing roll driving motor stopped on the safety barrier. The invention has the advantages of good safety when in use, adjustable gap between the printing plate fixing roller and the paper supporting roller and difficult impression generation, and solves the problems that the gap of the existing printing machine is not adjustable, the impression can be generated, and the safety accident is generated because the printing plate fixing roller and the paper supporting roller are easy to be rolled.

Description

Printing machine is used in production of container bag of establishing protection guardrail clearance adjustable

The scheme is a divisional application of application number 2016111285136, application date 2016, 12 and 29, and the name 'paper bag production printing machine with adjustable guardrail clearance'.

Technical Field

The invention relates to a paper bag production device, in particular to a paper bag production printer with adjustable gap of a fortifying guardrail.

Background

In the paper bag making process, the pattern on the paper bag is printed on the paper for making the paper bag in advance by a printing machine. The compressor for manufacturing the paper bag comprises a frame, wherein the frame is provided with a printing plate fixing roller, a paper supporting roller and a paper supporting roller driving motor, when the compressor is used, a printing plate is wrapped on the printing plate fixing roller, paper passes between the printing plate fixing roller and the paper supporting roller, and then patterns on the printing plate are printed on the paper. The gap between a paper supporting roller and a printing plate fixing roller of the existing printing machine for manufacturing paper bags is not adjustable, and unsmooth feeding can be generated when the thickness of paper is thin, and imprinting can be generated when the thickness of paper is large, so that the attractiveness is influenced; if the operator accidentally touches the plate fixing roller and the sheet supporting roller, they are easily caught up to cause a safety accident.

Disclosure of Invention

The invention provides a paper bag production printing machine with adjustable guard rail gaps, which has good safety when in use, adjustable gaps between a printing plate fixing roller and a paper supporting roller and is not easy to generate imprinting, and solves the problems that the gap of the existing printing machine is not adjustable, the imprinting can be generated, and the safety accidents are easily caused by being rolled.

The technical problem is solved by the following technical scheme: the utility model provides a printing machine is used in production of establish defence guardrail clearance adjustable container bag, includes the frame, the frame is equipped with printing plate fixed roll, paper backing roll and paper backing roll driving motor, form the paper passageway between printing plate fixed roll and the paper backing roll, a serial communication port, the paper backing roll is rubber covered roll, the paper backing roll with paper backing roll driving motor links together, the printing plate fixed roll is located the top of paper backing roll, the printing plate fixed roll is connected through lift seat liftable in the frame, the entrance point and the exit end of paper passageway all are equipped with safety barrier, the last control that is equipped with of safety barrier the scram switch that paper backing roll driving motor stopped. When the automatic printing machine is used, the lifting seat is driven to lift through the lifting seat driving mechanism, and when the lifting seat lifts, the printing plate fixing roller is driven to open and close corresponding to the paper supporting roller, so that the gap is changed to adapt to the change of the thickness of the paper, and further, the unsmooth feeding and the impression are avoided. The paper supporting roller is a rubber covered roller, so that the generation of impression can be more effectively avoided. The safety guardrail is arranged, so that safety accidents caused by the fact that people or objects are rolled into the paper channel can be effectively prevented. The emergency stop switch is arranged, so that the driving can be conveniently and timely stopped in case of an accident.

Preferably, the lifting seat driving mechanism comprises a screw rod extending along the vertical direction, a threaded sleeve driving the screw rod to lift and a lifting motor driving the threaded sleeve to rotate, and the threaded sleeve is connected with the rack through a sleeve seat. The screw rod is driven to rotate and lift through the rotation of the threaded sleeve. The mechanism is simple. The handle can be designed to enter a manual drive mode to lift according to requirements.

Preferably, the lifting seat comprises a bearing seat and a suspension seat, the shaft end of the printing plate fixing roller is supported on the bearing seat through a bearing, the bearing seat is connected with a suspension rod, the upper end of the suspension rod penetrates through the suspension seat and is connected with a suspension nut, the suspension rod is suspended below the suspension seat, and a connecting spring is arranged between the bearing seat and the suspension seat. The rigid connection of the printing plate fixing roller with the frame can be converted into flexible connection, so that the vibration can be reduced, and large foreign matters can be prevented from entering between the traction rollers to damage equipment.

The invention also comprises a power supply display mechanism for displaying whether the paper supporting roller driving motor is electrified, wherein the power supply display mechanism comprises a projection plate arranged on the operation side of the machine frame and a light source which is arranged on the driving side of the machine frame and irradiates towards the projection plate, and the light source is a laser diode. Whether the motor is electrified or not can be conveniently known from the operation side. If the light source irradiates light on the projection plate, the motor is electrified.

The LED lamp also comprises a radiator and a heating structure, wherein the light source is a green laser diode, the heating structure comprises a heat conduction substrate and a chip resistor arranged on the heat conduction substrate, the radiator is provided with a light source mounting hole and a heating structure mounting hole which are communicated together, the heat conduction substrate is mounted in the heating structure mounting hole, the heat conduction substrate is integrally formed with a heat conduction sleeve penetrating through the light source mounting hole, the light source is connected in the heat conduction sleeve, the heat conduction sleeve and the light source mounting hole are abutted together when the temperature is over 25 ℃, and the linear expansion coefficient of the radiator is smaller than that of the heat conduction sleeve. The requirement of the green laser diode on the environment temperature is particularly high, the brightness of the green laser diode is reduced when the environment temperature is lower than 25 ℃, and the brightness of the green laser diode is also reduced when the environment temperature is higher than 30 ℃, so that heat dissipation and heating are considered when the green laser diode is used, if a heating structure is not designed on a product to heat the laser diode, the laser diode cannot work, two heating modes are provided for the laser diode at present, one heating mode is a mode of winding a heating belt on a light source and then installing the light source on a radiator, and the heating mode can cause poor heat dissipation of the light source when heat dissipation is required, so that the heating mode is seriously unsuitable for the heating of the laser diode; another method is to place a power resistor on the surface of the heat sink of the laser diode to heat the heat sink, and then transfer the heat to the light source through the heat sink, wherein the heat is transferred to the laser tube due to the heat dissipation of the heat sink surface, and the starting time (i.e. the time for heating the light source to above 25 ℃ for normal light emission) in a low temperature environment is at least more than 30 minutes, i.e. the heating efficiency is low. According to the technical scheme, the original power resistor is replaced by the patch resistor and is attached to the heat conducting plate, heat of the resistor is transmitted to the heat conducting plate, namely the heat conducting plate serves as a radiator of the resistor, the heat conducting plate is connected with the light source in a heat conducting mode, so that the generated heat can be rapidly transmitted to the light source, and compared with the second mode, the time for heating the laser diode from-25 ℃ to normal light emitting, namely 25 ℃ is only 5-10 minutes (the existing mode is 30 minutes). Meanwhile, when the LED lamp is not heated, the influence of the heat conducting plate on the heat dissipation effect of the light source is small. When the temperature is lower than 25 ℃, the light source needs to be heated, and at the moment, clearance fit is formed between the light source mounting hole and the heat conducting sleeve under the effect of cold contraction, so that the heat of the light source can be effectively prevented from further losing, and the effect of improving the heating efficiency is achieved. When the temperature rises, the tight fit between the light source mounting hole with small thermal expansion effect and the heat conducting sleeve can be formed, and good heat conduction can be carried out, so that the heat radiating effect can be high. The heat conduction effect between the light source and the radiator is reduced and the heat dissipation is improved automatically.

Preferably, one end of the heat conduction sleeve and one end of the radiator are in sealing butt joint with the sealing plate, the other end of the heat conduction sleeve and the other end of the radiator are in sealing connection through the annular liquid storage bag, a sealing cavity is formed among the heat conduction sleeve, the sealing plate, the radiator and the annular liquid storage bag, the sealing cavity is communicated with the annular liquid storage bag, and heat insulation liquid in the annular liquid storage bag can flow into the sealing cavity under the action of gravity or elastic contraction of the annular liquid storage bag. Because when being less than 25 ℃ the cold contraction effect can lead to producing the clearance and reducing the effect of heat conduction between heat conduction cover and the radiator and play the effect that improves the heating effect between heat conduction cover and the radiator when being less than 25 ℃, adiabatic liquid fills and plays further improvement adiabatic effect and make the heating effect better in this clearance this moment. When the temperature is higher than 25 ℃ or 30 ℃ and heat dissipation is needed, the heat conduction sleeve and the light source mounting hole are tightly pressed together under the action of thermal expansion, and heat insulation liquid between the heat conduction sleeve and the light source mounting hole is extruded out in the pressing process and is stored in the annular liquid storage bag. The heating effect during heating can be further improved.

Preferably, a side of the heat conducting substrate away from the light source is disconnected from a wall of the heating structure mounting hole. The heat during heating can mostly flow to the light source place, plays the effect that improves the heating effect, and the hindrance when to the heat dissipation is few.

Preferably, the chip resistor is disposed on a side of the heat conductive substrate away from the light source. The heat transfer of the chip resistor to the heat conducting plate can be guaranteed, and the existence of the chip resistor can be enabled not to interfere with the heat transfer effect between the heat conducting plate and the light source.

Preferably, the surface of the heat sink is provided with a heat dissipation fin, and the heating structure mounting hole is located on one side of the light source mounting hole close to the heat dissipation fin. If the light source mounting hole is located between the heating structure mounting hole and the heat dissipation fin, heat is easily lost by the heat dissipation fin when heating. The arrangement of the heat dissipation fins improves the heat dissipation effect.

Preferably, the heat dissipation fins are at least two, and the free ends of all the heat dissipation fins are located on the same cylindrical surface. The heat dissipation effect is good.

Preferably, the radiator is provided with a radiator mounting hole extending along the depth direction of the light source mounting hole, and the hole wall of the radiator mounting hole is provided with a notch. When the present invention is installed, the present invention may be connected to a component (hereinafter, referred to as a support component) to which the present invention is installed by fastening a bolt through a radiator installation hole, or may be fixed by inserting a connection pin of the support component into a radiator installation hole by a tightening action of elastic deformation of the radiator installation hole. The convenience during installation is good.

Preferably, the opening width of the portion of the light source mounting hole in communication with the heating structure mounting hole is less than one quarter of the circumference of the light source mounting hole. The heating structure can be rapidly heated while the heat dissipation effect caused by the arrangement of the heating structure is reduced.

Preferably, the paper supporting roller driving motor is provided with a speed reducer, an output shaft of the speed reducer is connected with the traction roller, and the speed reducer is fixed with the rack through a mounting bolt matched with a motor fixing nut. The motor is convenient to mount and dismount.

Preferably, the motor fixing nut comprises an annular nut body and an internal thread arranged on the inner circumferential surface of the nut body, a through groove extending from one end of the nut to the other end is formed in the inner circumferential surface of the nut body, the through groove cuts off the internal thread along the circumferential direction of the nut body, and a through groove width adjusting bolt penetrating through the side wall of one side of the through groove and then being in threaded connection with the side wall of the other side of the through groove is arranged on the nut body. When the motor is disassembled and the nut needs to be rotated, the through groove width adjusting bolt is loosened to the through groove to be in a free state, and then the motor fixing nut is rotated. The motor fixing nut rotates to be in place and then locks the through groove width adjusting bolt to reduce the width of the through groove, the reduction result is that the internal thread is tightly held on the thread of the mounting bolt, so that the motor fixing nut and the mounting bolt are not easy to loosen and the connection between the motor and the rack is not easy to loosen, and the connection reliability of the motor and the rack is also good.

Preferably, the number of the through grooves is two. The locking effect is required and the damage effect to the screw thread of the motor fixing nut is small.

Preferably, the two through grooves are uniformly distributed along the circumferential direction of the nut body. The local fragile phenomenon of motor fixation nut production can be effectively prevented.

Preferably, the outer circumferential surface of the nut body is a cylindrical surface, and the outer circumferential surface of the nut body is provided with a power assisting groove. The outer peripheral surface of the nut body is a cylindrical surface, so that the installation of the through groove width adjusting bolt is convenient to realize on the motor fixing nut. The power-assisted groove is arranged, so that the motor fixing nut is convenient to drive when rotating.

The invention has the following advantages: the gap is adjustable, so that unsmooth feeding caused by impression and slipping can be avoided; the safety is good.

Drawings

Fig. 1 is a schematic diagram of a first embodiment of the invention.

FIG. 2 is an enlarged schematic view of the connection of the plate holding roll to the frame.

Fig. 3 is an enlarged schematic view of the nut.

Fig. 4 is a schematic diagram of a second embodiment of the invention.

FIG. 5 is a schematic diagram of a light source for heating and dissipating heat.

Fig. 6 is a partial schematic view of the third embodiment.

In the figure: the printing plate fixing device comprises a rack 1, a support seat plate 11, a paper channel 12, a safety guardrail 13, an emergency stop switch 14, a printing plate fixing roller 21, a paper supporting roller 22, a mounting bolt 3, a paper supporting roller driving motor 4, a speed reducer 5, a lifting seat 6, a bearing seat 61, a suspension seat 62, a bearing 63, a suspension nut 64, a suspension rod 65, a connecting spring 66, a lifting seat driving mechanism 7, a screw rod 71, a thread bush 72, a lifting motor 73, a sleeve seat 74, a motor fixing nut 8, a nut body 81, an internal thread 82, a through groove 83, one side wall 831 of the through groove, the other side wall 832 of the through groove, a through groove width adjusting bolt 84, a power assisting groove 85, a radiator 91, a light source mounting hole 911, a heating structure mounting hole 912, a radiating fin 913, a free end 9131 of the radiating fin, a radiator mounting hole 914, a notch 9141, a light source 92, a diode power supply leading-in foot 921, a heating structure 93, a base plate 931, The chip resistor 932, the heat insulation glue 933, the heat conduction sleeve 934, the sealing plate 94, the annular liquid storage bag 95, the sealing cavity 96, the projection plate 97, the opening width W of the communication part of the light source mounting hole and the heating structure mounting hole.

Detailed Description

The invention is further described with reference to the following figures and examples.

First embodiment, referring to fig. 1, an antiskid type tractor for producing rubber conveyer belt comprises a frame 1 and a paper supporting roller driving motor 4.

The frame 1 is provided with two traction rollers 2. The two drawing rolls 2 are a paper supporting roll 22 and a plate fixing roll 21, respectively. The plate fixing roller 21 is positioned above the paper supporting roller 22. Both ends of the plate fixing roller 21 are connected to the frame 1 via a lifting base 6 so as to be able to rise and fall. The lifting seat 6 is connected with the frame 1 in a sliding way. The frame 1 is also provided with a lifting seat driving mechanism 7 for driving the lifting seat to lift. The frame 1 is also provided with a supporting seat board 11. The plate fixing roller 21 and the sheet supporting roller 22 form a sheet path 12 therebetween. Safety fences 13 are provided at both the inlet end and the outlet end of the paper path 12. Emergency stop switches 14 are provided on the safety barriers 13 at both the inlet and outlet ends. The emergency stop switch 14 is used to control the sheet supporting roller driving motor 4 to stop. The paper support roller 22 is a rubber covered roller, i.e., a roller that is shown covered with a rubber layer.

The sheet supporting roller driving motor 4 is provided with a speed reducer 5. The housing of the sheet supporting roller driving motor 4 is fixed to the housing of the decelerator 5. The motor shaft of the paper supporting roller driving motor 4 is connected with the input shaft of the speed reducer 5. The output shaft of the speed reducer 5 is connected with the paper supporting roller 22 through a coupler. The shell of the speed reducer 5 is fixed on the support seat plate 11 through the mounting bolt 3 and the nut 8, namely the threaded end of the mounting bolt 3 penetrates through the mounting through hole on the shell of the speed reducer and the mounting through hole on the support seat plate simultaneously and then is in threaded connection with the nut 8 to fix the speed reducer 5 on the rack 1. The sheet supporting roller driving motor 4 is located on the driving side of the frame 1.

Referring to fig. 2, the elevating base 6 includes a bearing base 61 and a hanging base 62. The shaft end of the plate fixing roller 21 is supported on the bearing housing 61 by a bearing 63. The bearing seat 61 is connected with two suspension rods 65 which are connected with suspension nuts 64 after the upper ends of the suspension rods penetrate through the suspension seats 62. The bearing housing 61 is suspended below the suspension housing 62 by a suspension rod 65. And a connecting spring 66 is sleeved on the suspension rod 65 between the bearing seat and the suspension seat. The two ends of the connecting spring 66 abut against the bearing seat 61 and the suspension seat 62, respectively. The lifting base driving mechanism 7 includes a screw 71, a threaded sleeve 72, and a lifting motor 73. The screw 71 extends in the vertical direction. The lower end of the screw rod 71 is rotatably hooked on the hanging seat 62. The screw rod 71 is screwed with the thread bush 72. The threaded sleeve 72 is rotatably connected within the sleeve mount 74. The sleeve seat 74 is fixedly connected with the frame 1. The lifting motor 73 is used for driving the threaded sleeve 72 to rotate.

Referring to fig. 3, the motor fixing nut 8 includes a circular ring nut body 81 and internal threads 82 provided on an inner circumferential surface of the nut body. Two through grooves 83 are formed in the inner peripheral surface of the nut body 81. The through groove 83 extends from one end to the other end in the axial direction of the motor fixing nut 8. The through groove 83 breaks the internal thread 82 in the circumferential direction of the nut body 81. The nut body 81 is provided with a through groove width adjusting bolt 84 which passes through the side wall 831 on one side of the through groove and is then screwed on the side wall 832 on the other side of the through groove. The two through grooves 83 are uniformly distributed along the circumferential direction of the nut body 81. The nut body 81 is provided with a booster groove 85 on the outer peripheral surface thereof.

Referring to fig. 1, 2 and 3, in use, the pulled conveyer belt passes between the two pulling rollers 2, the lifting motor 73 drives the threaded sleeve 72 to rotate, the threaded sleeve 72 drives the screw rod 71 to lift and drive the lifting seat 6 to lift, so that the plate fixing roller 21 is separated and combined with the paper supporting roller 22 to adjust the pressure of the conveyer belt, and the pressure is detected by the pressure sensor and displayed by the display.

When the motor fixing nut 8 needs to be rotated, the through groove width adjusting bolt 84 is loosened until the through groove 83 is in a free state, i.e., in a state of every deformation, and then the motor fixing nut 8 is rotated. After the motor fixing nut 8 rotates in place, the through groove width adjusting bolt 84 is locked to enable the width of the through groove 83 to be reduced, and the internal thread 82 is tightly held on the thread of the mounting bolt as a result of reduction, so that looseness is not prone to being generated between the motor fixing nut 8 and the mounting bolt, and axial displacement of the tool apron is caused.

The second embodiment is different from the first embodiment in that:

referring to fig. 4, a power display mechanism 9 is also included. The power supply display mechanism 9 includes a light source 92 and a projection board 97. The light source 92 is mounted on the driving side of the chassis 1 through a heat sink 91. A projection plate 97 is mounted on the operating side of the gantry. The light source 92 is illuminated toward the projection plate 97. The light source 92 is a green laser diode. When the sheet supporting roller driving motor 4 is energized, the light source 92 emits light and projects onto the projection plate 97.

Referring to fig. 5, the power display mechanism 9 further includes a heating structure 93.

The heat sink 91 is provided with a light source mounting hole 911 and a heating structure mounting hole 912, a heat dissipation fin 913, and a heat sink mounting hole 914 which are communicated together. The light source mounting hole 911 is a circular hole. The heating structure mounting holes 912 are rectangular holes. The light source mounting hole 911 is through with the heating structure mounting hole 912, specifically, a circle where the light source mounting hole 911 is located extends into the heating structure mounting hole 912, that is, an intersecting manner. The opening width W of the portion where the light source mounting hole communicates with the heating structure mounting hole is less than a quarter of the circumference of the light source mounting hole 911. The heating structure mounting hole 912 is located at a side of the light source mounting hole 911 near the heat dissipation fin 913. The heat dissipation fins 913 are located on the surface of the heat sink 91. There are 17 fins of heat dissipating fins 913. The free ends 9131 of all the fins are on the same cylindrical surface. The extension directions, i.e., the depth directions, of the heat sink mounting hole 914, the light source mounting hole 911, and the heating structure mounting hole 912 are the same. The wall of the heat sink mounting hole 914 is provided with a notch 9141.

The light source 92 is cylindrical. The light source 92 is provided with a diode power supply lead-in pin 921.

The heating structure 93 includes a thermally conductive substrate 931 and a chip resistor 932 disposed on the thermally conductive substrate. The heat conductive substrate 931 is bonded in the heating structure mounting hole 912 in a flat manner by the heat insulating paste 933. The side of the thermally conductive substrate 931 remote from the light source 92 is disconnected from the walls of the heating structure mounting holes 912. The chip resistor 932 is disposed on a side of the thermally conductive substrate 931 remote from the light source 92. The heat conducting substrate 931 is provided with a heat conducting sleeve 934. The heat-conducting substrate 931 and the heat-conducting sleeve 934 are integrally formed. The heat conducting sleeve 934 is inserted into the light source mounting hole 911. The light source 92 is inserted through the heat conductive sleeve 934 and is suspended in the light source mounting hole 911. The linear expansion coefficient of the heat conducting sleeve 934 is greater than that of the heat sink 91, that is, the variation of the radial dimension generated by the heat conducting sleeve during expansion with heat and contraction with cold is greater than that generated by the light source mounting hole. When the temperature is above 25 ℃, the heat-conducting sleeve 934 and the light source mounting hole 911 are abutted together to realize the indirect abutment of the light source 92 and the light source mounting hole 911.

In use, the heat sink is fixed to a shaft 97 of the motor (the shaft 97 is shown in fig. 3) through the heat sink mounting hole 914.

When the temperature is higher than 25 ℃, the heating structure 93 is not electrified, namely the chip resistor 932 is not electrified, the radial variation of the heat conduction sleeve 934 is larger than that of the laser light source mounting hole 911, so that the heat conduction sleeve 934 and the laser light source mounting hole 911 are abutted more closely to conduct better heat conduction. When the temperature is less than 25 ℃, the power is supplied to the chip resistor 932, the heat generated by the chip resistor 932 is transferred to the heat conduction substrate 931, the heat is transferred to the light source 92 to heat the light source 92 to a temperature not lower than 25 ℃, the radial reduction amount of the heat conduction sleeve 934 is greater than that of the laser light source mounting hole 911, a gap is generated between the heat conduction sleeve 934 and the laser light source mounting hole 911, the effect of reducing the heat conduction sleeve 934 to transfer the heat to the radiator 91 is achieved, the heat transferred by the heat conduction sleeve 934 of the heat conduction sleeve 934 can be transferred to the light source 92 more fully, and the effect of improving the heating effect is achieved.

The third embodiment is different from the second embodiment in that:

referring to fig. 6, one end of the heat conductive sleeve 934 and one end of the heat sink 91 are both sealingly abutted against the sealing plate 94, i.e., both the heat conductive sleeve and the heat sink are slidable relative to the sealing plate 94. The other end of the heat conducting sleeve 934 and the other end of the heat sink 91 are hermetically connected together by an annular reservoir 95. The annular reservoir 95 is filled with a heat insulating liquid which keeps the annular reservoir 95 in an elastically expanded state. When the temperature is below 25 ℃, a sealing cavity 96 is formed among the heat conducting sleeve 934, the sealing plate 94, the heat radiator 91 and the annular liquid storage bag 95. The sealed chamber 96 communicates with the annular reservoir 95.

The annular reservoir 95 is positioned in use above the sealed cavity 96 of the annular reservoir 95. When being less than 25 ℃ the shrinkage effect can lead to producing the clearance and making sealed chamber 96 appear between heat conduction cover and the light source mounting hole, and the adiabatic liquid in annular liquid storage bag 95 flows to sealed chamber 96 under the elastic shrinkage effect of gravity and annular liquid storage bag this moment, plays further to reduce the volume that heat conduction cover 934 transmitted for radiator 91 for the heating effect further promotes. When the temperature is higher than 25 ℃ or 30 ℃ and heat dissipation is needed, the heat conduction sleeve and the light source mounting hole are tightly pressed together under the action of thermal expansion, so that the sealing cavity 96 disappears, and the heat insulation liquid in the sealing cavity 96 is squeezed back into the annular liquid storage bag 95 again to be stored.

Claims

1. A printing machine for producing paper bags with adjustable guardrail gaps comprises a rack, wherein the rack is provided with a printing plate fixing roller, a paper supporting roller and a paper supporting roller driving motor, and a paper channel is formed between the printing plate fixing roller and the paper supporting roller; the paper support roller driving device comprises a paper support roller driving motor, a power supply display mechanism and a control module, wherein the paper support roller driving motor is used for driving the paper support roller to rotate; still include radiator and heating structure, the light source is green glow laser diode, heating structure includes heat conduction base plate and the chip resistor of setting on the heat conduction base plate, the radiator is equipped with intercommunication light source mounting hole and heating structure mounting hole together, the heat conduction base plate is installed in the heating structure mounting hole, heat conduction base plate integrated into one piece is equipped with and wears to establish heat conduction cover in the light source mounting hole, the light source is connected in the heat conduction cover, when the temperature is more than 25 ℃, the heat conduction cover with light source mounting hole butt is in the same place, the linear expansion coefficient of radiator is less than the linear expansion coefficient of heat conduction cover, the butt is sealed on the closing plate to the one end of heat conduction cover and the one end of radiator, the other end of heat conduction cover and the other end of radiator pass through annular liquid storage bag sealing connection together, heat conduction cover, the heat conduction cover, A sealing cavity is formed among the sealing plate, the radiator and the annular liquid storage bag, when the temperature is lower than 25 ℃, a gap is generated between the heat conduction sleeve and the light source mounting hole under the cold contraction action, so that the sealing cavity is formed, the sealing cavity is communicated with the annular liquid storage bag, and heat insulation liquid in the annular liquid storage bag can flow into the sealing cavity under the action of gravity or elastic contraction of the annular liquid storage bag; the lifting seat comprises a bearing seat and a suspension seat, the shaft end of the printing plate fixing roller is supported on the bearing seat through a bearing, the bearing seat is connected with a suspension rod, the upper end of the suspension rod penetrates through the suspension seat and then is connected with a suspension nut, the bearing seat is suspended below the suspension seat through the suspension rod, and a connecting spring is arranged between the bearing seat and the suspension seat.

2. The paper bag production printing machine with the adjustable fortifying guardrail gap as claimed in claim 1, wherein the lifting seat driving mechanism comprises a screw rod extending along the up-down direction, a threaded sleeve driving the screw rod to lift and a lifting motor driving the threaded sleeve to rotate, and the threaded sleeve is connected with the frame through a sleeve seat.

3. The paper bag production printing machine with the adjustable fortifying guardrail gap as claimed in claim 1 or 2, wherein the paper supporting roller driving motor is provided with a speed reducer, an output shaft of the speed reducer is connected with the paper supporting roller, and the speed reducer is fixed with the frame through a mounting bolt matched with a motor fixing nut.

4. A paper bag production printing machine with adjustable fortifying guardrail gaps as defined in claim 3, wherein the motor fixing nut comprises a ring nut body and internal threads arranged on the inner peripheral surface of the nut body, a through groove extending from one end of the nut to the other end is arranged on the inner peripheral surface of the nut body, the through groove breaks the internal threads along the circumferential direction of the nut body, and the nut body is provided with a through groove width adjusting bolt which penetrates through one side wall of the through groove and is then in threaded connection with the other side wall of the through groove.

5. The paper bag production printing machine with the adjustable fortifying guardrail gap as claimed in claim 4, wherein there are two through grooves.