Integrated lifting film blowing machine

Abstract

The utility model relates to an integrated lifting film blowing machine which comprises an installation platform, a heating extrusion mechanism, a film material forming mechanism and a stretching traction mechanism, the installation platform is fixedly provided with a rack, the stretching traction mechanism comprises a traction frame, a traction assembly and a herringbone clamp assembly, and the rack is provided with a containing space for containing the stretching traction mechanism at the position corresponding to the traction frame. Lifting screws rotationally arranged on the traction frame are arranged at the two ends of the traction frame respectively, fixed lifting bases are correspondingly arranged at the positions, corresponding to the lifting screws, of the rack, a synchronous driving assembly for driving the lifting screws on the two sides to rotate synchronously is arranged at the traction frame, and the synchronous driving assembly drives the stretching traction mechanism to axially enter or break away from the containing space. The stretching traction mechanism does not need to be disassembled to reduce the height during transportation, the stretching traction mechanism can be directly lifted to directly work after arriving at the destination, and more blown films can be put into a container with the same specification, so that the installation and transportation cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of blown film machines field, in particular to a kind of integrated lifting blown film machine. BACKGROUND

[0002] Blown film machine is a kind of plastic particles are heated and melted again and blow into plastic film and make roll equipment, and the plastic film made according to material and characteristics is widely used in food, medicine and many other fields, is applicable to various high-grade film packaging, plastic bag film, protective film etc.

[0003] The existing Chinese utility model patent with publication number CN202439215U discloses a blown film machine with reasonable structure, computer control, high automation, simple operation and low energy consumption, which is composed of a rack, an extruder, a traction auxiliary machine, an air compressor, a distribution box, a blower and a winding mechanism, the rack is connected with a staircase, a guide wheel and a corona treatment machine are installed on one side of the rack, a bubble stabilizing device, a herringbone clamp, a traction auxiliary machine and a traction motor are arranged on the rack, the extruder is connected with a heating device through a hopper, a die head is connected on the heating device, a wind ring is arranged outside the die head, the wind ring is connected with the blower through a wind pipe, a rotary traction machine is connected with the lower end of the wind ring, a traction speed reducer is connected with the traction motor, and an extrusion speed reducer is connected with the extruder.

[0004] In the above technology, the traction auxiliary machine (traction mechanism) needs to be installed above the wind ring and at a high position of the rack to ensure the stability of film transportation when the blown film machine is working. This leads to the necessity of disassembling the traction auxiliary machine (traction mechanism) before transportation and assembling after transportation, causing transportation inconvenience and loading and unloading difficulty, increasing transportation and labor costs. With the development of international trade and sea transportation, blown film machines need to be sold to various places through containers. In order to reduce transportation costs, it is particularly important to load more blown film machines in a limited volume container. Taking a 40GP container (40 feet general purpose container) as an example, its internal dimensions are 12 meters long, 2.35 meters wide and 2.39 meters high. The size of the existing blown film machine is about 3.2 meters long, 1.5 meters wide and 4 meters high. According to the existing mode, in order to reduce the height to 2.3 meters to adapt to the container, the traction auxiliary machine (traction mechanism) must be disassembled first. However, according to this specification, only 3-4 blown film machines can be loaded in a container. In addition, after arriving at the destination, the complex traction auxiliary machine needs to be reinstalled for use, which greatly increases the labor and transportation costs. SUMMARY

[0005] The utility model wants to solve the technical problem in view before the above, provides an integrated lifting blown film machine, keeps the blown film machine specification under the shrinkage state at 3.2m*1.1m*2.3m±0.1m, makes 40GP container that can only be loaded into 3-4 blown film machines can load into 6-8, greatly reduces the transportation cost and artificial cost.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: integrated lifting blown film machine, including installation platform and a plurality of heating extrusion mechanisms, film material forming mechanism and stretching traction mechanism being arranged on the installation platform, the installation platform is fixed with the frame to one end of stretching traction mechanism, the stretching traction mechanism includes the traction frame being arranged in the frame, the traction assembly being arranged above the traction frame and the herringbone clamp assembly being arranged below the traction assembly, the frame is equipped with the containing space for containing the stretching traction mechanism at the traction frame, the both ends of the traction frame are equipped with the lifting screw rod being rotatably arranged on the traction frame, the frame is correspondingly provided with the fixed lifting seat corresponding to the lifting screw rod, the frame or the traction frame is equipped with the synchronous drive assembly for driving the synchronous rotation of the lifting screw rod on both sides, the fixed lifting seat is connected with the lifting screw rod in screw, and the stretching traction mechanism is driven into or separated from the containing space through the synchronous drive assembly.

[0007] The above-mentioned technical scheme is adopted, the heating extrusion mechanism is used for heating extrusion to film material forming mechanism, film material forming mechanism is used for blowing into a film after heating Material is sent to the stretching traction mechanism to become film material, and the stretching traction mechanism is installed on the frame, the traction assembly and the herringbone clamp assembly are installed on the traction frame, wherein the frame is used as the support structure of the whole stretching traction mechanism, is fixed on the installation platform, is used for installing and supporting the stretching traction mechanism, the stretching traction mechanism is installed on the frame and is responsible for the stretching and traction of the film, the both ends of the traction frame are equipped with a lifting screw rod, are connected with the fixed lifting seat on the frame through screw thread, the synchronous drive assembly is installed on the frame or the traction frame, is responsible for driving the synchronous rotation of the lifting screw rod on both sides, ensures that the traction frame can move axially in the containing space stably, that is, ensures that the stretching traction mechanism can completely or partially enter or exit the containing space during transportation, does not need to disassemble the stretching traction mechanism for reducing height, can directly work after directly rising after reaching the destination, reduces installation and transportation cost, and the traction assembly and the herringbone clamp assembly can adapt to the film stretching demand of different heights, improve the flexibility and adaptability of the blown film machine, the heating extrusion mechanism, the film material forming mechanism and the stretching traction mechanism are integrated on one installation platform, reduce the complexity of installation and debugging, facilitate the whole machine transportation, the synchronous drive assembly ensures the synchronous rotation of the lifting screw rod on both sides, avoids the equipment damage or operation failure caused by inconsistent lifting.

[0008] The integral lifting film blowing machine can be further provided with the synchronous driving assembly, which comprises a lifting motor arranged on the traction frame, lifting sprockets arranged on the lifting screws, a driving sprocket arranged at the output end of the lifting motor, and a synchronous chain wound around the driving sprocket and the two lifting sprockets.

[0009] According to the above technical scheme, the output end of the lifting motor is provided with the driving sprocket, and the lifting sprockets are arranged on the same horizontal plane. The synchronous chain is wound between the driving sprocket and the two lifting sprockets to form a closed transmission loop. When the lifting motor is started, the output shaft of the lifting motor drives the driving sprocket to rotate. The driving sprocket transmits power to the two lifting sprockets through the synchronous chain. Due to the characteristics of the synchronous chain, the two lifting sprockets rotate at the same speed and in the same direction, thereby driving the two lifting screws to synchronously lift. This type also includes the synchronous wheel synchronous belt and pulley belt type. It is considered as an equivalent technical scheme. The synchronous driving assembly is designed to realize the synchronous lifting of the lifting screws through the chain transmission, thereby improving the operation efficiency and stability of the lifting process of the stretching traction device of the film blowing machine.

[0010] The integral lifting film blowing machine can be further provided with the synchronous driving assembly, which comprises a lifting motor arranged on the traction frame, lifting sprockets arranged on the lifting screws, a driving sprocket arranged at the output end of the lifting motor, and a synchronous chain wound around the driving sprocket and the two lifting sprockets to form a closed transmission loop. When the lifting motor is started, the output shaft of the lifting motor drives the driving sprocket to rotate. The driving sprocket transmits power to the two lifting sprockets through the synchronous chain. Due to the characteristics of the synchronous chain, the two lifting sprockets rotate at the same speed and in the same direction, thereby driving the two lifting screws to synchronously lift. This type also includes the synchronous wheel synchronous belt and pulley belt type. It is considered as an equivalent technical scheme. The synchronous driving assembly is designed to realize the synchronous lifting of the lifting screws through the chain transmission, thereby improving the operation efficiency and stability of the lifting process of the stretching traction device of the film blowing machine.

[0011] The synchronous driving assembly comprises a lifting motor providing a power source for the whole synchronous driving assembly; the lifting motor is responsible for driving the whole lifting mechanism, and the rotation speed and direction of the lifting motor can be adjusted through a control system to adapt to different lifting speed and direction requirements; the lifting gear is arranged on the same end face of the two lifting screws and rotates together with the lifting screws; the lifting gear is meshed with the synchronous gears on the first and second synchronous shafts to transmit the power of the lifting motor to the lifting screws to realize the rotation of the lifting screws; the bidirectional transmission gear box is arranged at the output end of the lifting motor and is used for adjusting and transmitting power; the first and second synchronous shafts are two independent shafts which are connected with the bidirectional transmission gear box and the lifting gear respectively; the two synchronous shafts are responsible for synchronously transmitting power from the bidirectional transmission gear box to the lifting gears at two ends to ensure the synchronous rotation of the lifting screws at two ends; the synchronous gears are meshed with the lifting gears to transmit the power from the bidirectional transmission gear box to the lifting gears to drive the lifting screws to rotate; the bidirectional transmission gear box is arranged to be a gear box which inputs power from a motor and synchronously outputs power to two sides; since the power sources of the first and second synchronous shafts are the same and the synchronous gears are meshed with the lifting gears, the synchronous rotation of the lifting screws at two ends can be realized; the first and second synchronous shafts can rotate in the same direction or in opposite directions; when the first and second synchronous shafts rotate in opposite directions, only the threads of the lifting screws at two sides need to be arranged in opposite directions to realize stable synchronous movement.

[0012] The integral lifting film blowing machine can be further provided with the bidirectional transmission gear box comprising a box body, a driving gear arranged in the box body, and driven gears arranged at two ends of the box body and meshed with the driving gear; the first and second synchronous shafts are respectively inserted into the box body and fixedly connected with the driven gears; the output end of the lifting motor is inserted into the box body and fixedly connected with the driving gear; the box body is provided with a positioning shaft sleeve; the first and second synchronous shafts are inserted into the positioning shaft sleeve and rotate after passing through the driven gears; the box body is provided with an auxiliary gear on the side opposite to the driving gear; the positioning shaft sleeve is provided with an auxiliary mounting shaft corresponding to the auxiliary gear; one end of the auxiliary mounting shaft is connected with an auxiliary bearing in the auxiliary gear, and the other end of the auxiliary mounting shaft is connected with the driving gear after passing through the positioning shaft sleeve; the output end of the lifting motor is connected with the auxiliary mounting shaft; the traction frame is provided with positioning rotary seats for mounting the first and second synchronous shafts; one end of each of the first and second synchronous shafts is meshed with the lifting gear after passing through the positioning rotary seat, and the other end of each of the first and second synchronous shafts is inserted into the bidirectional transmission gear box; the frame is provided with a linear guide rail parallel to the lifting screws between the frame and the traction frame.

[0013] The above technical scheme is adopted, the lifting gear, the synchronous gear, the driving gear and the driven gear are preferably bevel gears, the bidirectional transmission gear box is provided with the driving gear and the driven gear, the driving gear receives power from the lifting motor and transmits the power to the two driven gears in the box body, the driven gears are arranged at two ends of the box body and are engaged with the driving gear, the first and second synchronous shafts penetrate into the box body and are fixedly connected with the driven gears to transmit the power of the driven gears to the synchronous gears at two ends of the first and second synchronous shafts, when the lifting motor starts, the output end of the lifting motor drives the driving gear to rotate, the driving gear transmits the power to the driven gears through the engagement relationship, the driven gears transmit the power to the first and second synchronous shafts, the two shafts output the power to the outside of the gear box to drive the lifting screw to rotate reversely, and the threads of the lifting screw are oppositely arranged, so that stable synchronous motion is realized, the positioning shaft sleeve is mounted in the box body and is used for fixing and guiding the rotation of the first and second synchronous shafts, which ensures that the first and second synchronous shafts maintain correct positions and alignment during rotation, reduces wear and improves the stability of the gear box, after the first and second synchronous shafts penetrate through the driven gears, the first and second synchronous shafts are inserted into the positioning shaft sleeve and rotate in the positioning shaft sleeve, so that the driven gears can transmit the power to the first and second synchronous shafts, and the positioning shaft sleeve provides support and accurate positioning, the auxiliary shaft is a shaft connected with the auxiliary gear and the driving gear, so that when the driving gear rotates, the inner ring of the auxiliary bearing of the auxiliary gear rotates, and the outer ring connected with the auxiliary gear is not affected, the rotary power of the auxiliary gear is guided by the driven gear, so that the auxiliary gear serves as a transmission gear on the other side of the driven gear, the bidirectional transmission gear box transmits power more stably, the positioning rotary seats are arranged on two sides of the traction frame, one end of the first and second synchronous shafts penetrates through the positioning rotary seats and is engaged with the lifting gear, and the other end is inserted into the bidirectional transmission gear box, so that the first and second synchronous shafts have an installation support on the traction frame, and the transmission stability is improved, the linear guide rails are arranged between the rack and the traction frame to ensure the stable movement of the traction frame and prevent the traction frame from deviating.

[0014] The above integrated lifting film blowing machine can be further provided with: the heating extrusion mechanism includes an extruder, a speed reducer and a hopper, the feeding port of the extruder is connected with the hopper, and the discharge ports are connected with the film material forming mechanism, the output end of the speed reducer is fixedly connected with the screw in the extruder, the film material forming mechanism includes an air ring and a blower arranged below the stretching traction mechanism corresponding to the installation platform, the air ring is connected with the blower through an air pipe and outputs the film material to the stretching traction mechanism, the heating extrusion mechanism, the film material forming mechanism and the stretching traction mechanism are arranged on the inner side of the installation platform, the length of the installation platform is L, the width is W, the height of the film blowing machine is H, and 3m≤L≤4m, 0.9m≤W≤1.17m, when the stretching traction mechanism enters the containing space, 2m≤H≤2.7m.

[0015] Adopting the technical scheme, the inner diameter specifications of the 40GP (40 feet general-purpose container) container are 12*2.35*2.39 (m), the inner diameter specifications of the 40HQ (40 feet high container) container are 12*2.35*2.7 (m), the extruder is used for melting plastic particles and extruding them into a film, the speed reducer is used for fixedly connecting with the screw in the extruder, is used for reducing the high-speed rotation of the motor to the low-speed rotation required by the extruder screw, and simultaneously increasing the torque, the hopper is connected to the feeding port of the extruder, is used for storing and conveying the plastic particles to the extruder, the air ring is arranged below the installation platform corresponding to the stretching traction mechanism, the air ring is connected with the air blower through the air pipe, is used for outputting the film material from the film material forming mechanism to the stretching traction mechanism, the air ring is used for uniformly distributing the air force to stabilize the form of the film, the air blower provides the air force to ensure that the film material can be smoothly conveyed to the stretching traction mechanism, by arranging the heating extrusion mechanism, the film material forming mechanism and the stretching traction mechanism inside the installation platform, the integrated transportation is realized, the overall volume is standardized, the length of the installation platform is 3m-4m, the length of the 40GP and the 40HQ is 12m, so that the container can load 3-4 film blowing machines per column, the width is set to 0.9m-1.17m, and the width of the 40GP and the 40HQ is 2.35m, so that the container can load 2 film blowing machines per row, and the height of the film blowing machine in the contracted state is 2m-2.7m, wherein the height of the 40GP is 2.39m, and the height of the 40HQ is 2.7m, so that the film blowing machine can be conveniently installed in the container body by only contracting the stretching traction mechanism without disassembly, and then 6-8 film blowing machines can be loaded into the same specification container which can only load 3-4 film blowing machines originally, so that the transportation cost and the labor cost are greatly reduced.

[0016] The integrated lifting film blowing machine can be further provided with an operation platform detachably connected to the frame above the frame, a staircase detachably connected to the operation platform at the operation platform, a slot for the stretching traction mechanism passing through the slot corresponding to the air ring of the operation platform, a power distribution box detachably connected to the frame at the side of the frame, and the air blower is arranged above the speed reducer.

[0017] Adopting the technical scheme, the operation platform is a working area for the operator to operate and maintain the equipment, the staircase is used to provide a safe and convenient channel for the operator to reach the operation platform, the slot is arranged at the position corresponding to the air ring of the operation platform to ensure that the stretching traction mechanism freely rises and falls in the operation platform and the film material is conveyed, the power distribution box is arranged at the side of the frame to centrally manage and distribute the power supply of the film blowing machine to ensure the safe operation of the equipment, the air blower provides air force for the film blowing machine to help stabilize and form the film, and the air blower is arranged above the speed reducer to save space.

[0018] The detachable structure is convenient for transportation and can be placed together in the remaining place of a container.

[0019] The integrated lifting film blowing machine can be further provided with the traction assembly comprising a driving traction roller and a driven traction roller, a traction gap for the film material to pass through being arranged between the driving traction roller and the driven traction roller, the traction gap being arranged corresponding to the end of the herringbone clamp assembly below, one end of the traction frame corresponding to the driving traction roller being provided with a traction motor for driving the driving traction roller to rotate, both ends of the driven traction roller being provided with driven traction bearing seats, and one end of the traction frame away from the driving traction roller being provided with a gap adjusting cylinder for driving the driven traction roller to approach or move away from the driving traction roller and thus controlling the width of the traction gap.

[0020] The driving traction roller is driven by the traction motor, and the driven traction roller is generally non-powered and rotates following the rotation of the driving traction roller. The traction gap for the film material to pass through is arranged between the driving traction roller and the driven traction roller, and the traction gap is arranged corresponding to the end of the herringbone clamp assembly below, so as to ensure that the film can be correctly guided and clamped when passing through the traction gap. The traction motor is responsible for driving the driving traction roller to rotate, thereby driving the stretching and movement of the film material. The driven traction roller is provided with driven traction bearing seats at both ends, which support the driven traction roller and reduce the friction when the driven traction roller rotates. The gap adjusting cylinder is used to drive the driven traction roller to approach or move away from the driving traction roller, thereby controlling the width of the traction gap, so that it can adapt to film materials of different widths and maintain tension control during film stretching.

[0021] The integrated lifting film blowing machine can be further provided with the herringbone clamp assembly comprising two adjusting plates gradually approaching each other along the direction from the frame to the traction assembly, one end of each adjusting plate being provided with an upper adjusting assembly for controlling the width of the output port between the adjusting plates and the other end being provided with a lower adjusting assembly for controlling the width of the input port between the adjusting plates.

[0022] The herringbone clamp assembly is composed of two adjusting plates, which gradually approach each other along the direction from the frame to the traction assembly, forming a structure similar to a "herringbone". The main function of the adjusting plates is to clamp the film. By adjusting the position of the adjusting plates, the width of the film can be controlled, so as to ensure that the film maintains appropriate tension and shape during traction. The upper adjusting assembly is responsible for controlling the width of the output port between the adjusting plates, i.e. the width of the film after passing through the herringbone clamp assembly. By adjusting the upper adjusting assembly, the distance between the adjusting plates can be changed, thereby adjusting the width of the film. The lower adjusting assembly is responsible for controlling the width of the input port between the adjusting plates, i.e. the width of the film before entering the herringbone clamp assembly. By adjusting the lower adjusting assembly, the initial clamping width of the adjusting plates can be changed, thereby adapting to films of different widths.

[0023] The aforementioned integrated lifting blown film machine can be further configured as follows: the upper adjustment assembly includes an upper adjustment fixing plate connected to the traction frame, upper adjustment seats and an upper width adjustment screw disposed opposite to each other on the upper ends of the two adjustment plates, the upper width adjustment screw being threadedly connected to the two upper adjustment seats, and an upper adjustment handwheel being disposed at one end after passing through the adjustment fixing plate, so that the upper width adjustment screw can be rotatably disposed on the upper adjustment fixing plate to control the relative position of the two upper adjustment seats; the lower adjustment assembly includes a lower adjustment fixing plate connected to the traction frame, a lower width adjustment plate disposed opposite to each other at the lower ends of the two adjustment plates, a lower width adjustment screw and a lower width adjustment nut, the lower adjustment fixing plate being provided with a lower adjustment fixing seat, one end of the lower width adjustment screw passing through the lower adjustment fixing seat and being threadedly connected to the lower width adjustment nut, and the other end being provided with a lower adjustment handwheel; one end of the lower width adjustment plate is hinged to the adjustment plate respectively, and the other end intersects each other to form a V-shape and is hinged to the lower width adjustment nut, so that the lower width adjustment screw can be rotatably disposed on the lower adjustment fixing plate to control the included angle of the two lower width adjustment plates.

[0024] In the above technical solution, the upper adjusting fixing plate is connected to the traction frame to support and position the upper adjusting seat and the upper width adjusting screw. The upper width adjusting screw is threadedly connected to the two upper adjusting seats to adjust their relative positions, thereby changing the distance between the adjusting plates. One end of the upper width adjusting screw passes through the upper adjusting fixing plate and is fitted with an upper adjusting handwheel, allowing the operator to rotate the upper width adjusting screw by rotating the handwheel, thus adjusting the relative positions of the two upper adjusting seats. The lower adjusting fixing plate is connected to the traction frame and serves as the fixing part of the lower adjusting assembly, supporting and positioning the lower width adjusting plate and the lower width adjusting screw. The device consists of a rod and a lower width adjusting nut. The lower adjusting fixing seat is located on the lower adjusting fixing plate and is used to fix the position of the lower width adjusting screw. One end of the lower width adjusting screw passes through the lower adjusting fixing seat and is threadedly connected to the lower width adjusting nut. This screw is used to adjust the included angle between the two lower width adjusting plates. One end of the lower adjusting fixing plate is hinged to the adjusting plate, and the other end intersects with each other to form a V-shape and is hinged to the lower width adjusting nut. By rotating the lower adjusting handwheel, the lower width adjusting screw rotates, causing the two lower width adjusting plates to rotate around the lower width adjusting nut, changing the included angle between the adjusting plates, controlling the width below the adjusting plates, and adapting to films of different widths.

[0025] The aforementioned integrated lifting blown film machine can be further configured as follows: several positioning plates that gradually narrow along the direction from the frame to the traction component are provided between the adjustment plates; the lower adjustment fixing plate is provided with a positioning adjustment strip and a positioning adjustment seat at the corresponding positioning plate; one end of the positioning adjustment strip is fixedly connected to the positioning plate, and the other end is movably inserted laterally into the positioning adjustment seat; the adjustment plate includes a mounting frame and several strip-shaped rods evenly distributed on the mounting frame; the end of the strip-shaped rod facing the positioning plate is an arc-shaped end face.

[0026] The positioning plate helps to ensure that the film maintains a correct path and position when passing through the herringbone clamp assembly, prevents the film from deviating or deviating from the predetermined traction direction, the positioning adjusting seat in which the other end of the positioning adjusting strip is inserted is used for fine adjustment of the position of the positioning plate, ensures accurate centering of the film, the adjusting plate controls the width of the film by adjusting the relative position thereof, the design of the strip-shaped rod body helps to uniformly distribute the clamping force and avoid damage to the film, and the arc-shaped end surface can smoothly guide the film to pass through the adjusting plate and reduce damage to the film during high-speed traction.

[0027] The utility model will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the three-dimensional schematic view of the utility model embodiment working state.

[0029] Figure 2 It is the top view of the utility model embodiment working state.

[0030] Figure 3 It is the structure schematic view of the utility model embodiment 1 stretch traction mechanism.

[0031] Figure 4 It is the section schematic view of the utility model embodiment 1 stretch traction mechanism.

[0032] Figure 5 It is the structure schematic view of the utility model embodiment traction assembly and herringbone clamp assembly.

[0033] Figure 6 It is the plane structure diagram of the utility model embodiment traction assembly and herringbone clamp assembly.

[0034] Figure 7 It is the three-dimensional schematic view of the utility model embodiment 2 stretch traction mechanism contraction state.

[0035] Figure 8 It is the plane schematic view of the utility model embodiment 2 stretch traction mechanism contraction state.

[0036] Figure 9 It is the AA direction section view of the utility model embodiment. Figure 8

[0037] Figure 10 It is the structure schematic view of the utility model embodiment 2 bidirectional transmission gear box.

[0038] Figure 11 It is the three-dimensional schematic view of the utility model embodiment before transportation state.

[0039] Figure 12 It is the schematic view of the utility model embodiment when loading in 40GP container.​ Implementation

[0040] Example 1: As Figures 1-4 As shown, the integrated lifting blown film machine includes an installation platform 1 and two heating extrusion mechanisms, a film forming mechanism, and a stretching traction mechanism mounted on the installation platform 1. The heating extrusion mechanism includes an extruder 2, a reducer 21, and a hopper 22. The feed inlet of the extruder 2 is connected to the hopper 22, and the discharge outlet is connected to the film forming mechanism. The output end of the reducer 21 is fixedly connected to the screw inside the extruder 2. The film forming mechanism includes an air ring 3 and a blower 31 mounted on the installation platform 1 below the stretching traction mechanism. The air ring 3 is connected to the blower 31 through an air duct and outputs the film to the stretching traction mechanism. A frame 4 is fixedly mounted on one end of the installation platform 1 corresponding to the stretching traction mechanism. The stretching traction mechanism includes a traction frame 41 mounted inside the frame 4, a traction component 5 mounted above the traction frame 41, and a herringbone clamp component 6 mounted below the traction component 5. The frame 1 has a receiving space a for accommodating the stretching traction mechanism at the location corresponding to the traction frame 41. Each end is provided with a rotating lifting screw 42 mounted on the traction frame 41. The frame 4 is provided with a fixed lifting seat 43 corresponding to the lifting screw 42. The traction frame 41 is provided with a synchronous drive assembly that drives the lifting screws 42 on both sides to rotate synchronously. The fixed lifting seat 43 is threadedly connected to the lifting screw 42 and drives the stretching traction mechanism to enter or leave the accommodating space a axially through the synchronous drive assembly. The heating extrusion mechanism, film forming mechanism and stretching traction mechanism are all located inside the installation platform 1 and do not extend outward. The frame 4 is provided with an operating platform 11 that is detachably connected to the frame 4. The operating platform 11 is provided with a staircase 12 that is detachably connected to the operating platform 11. The operating platform 11 is provided with a clearance groove 111 for the stretching traction mechanism to pass through at the air ring 3. The side of the frame 4 is provided with a distribution box 13 that is detachably connected to the frame 4. In order to further reduce the space, the blower 31 is located above the motor of the reducer 21. The gearbox of the reducer 21 is set to be placed vertically.

[0041] like Figure 3 , Figure 4 As shown, the synchronous drive assembly includes a lifting motor 44 mounted on the traction frame 41, a lifting sprocket 421 mounted on the lifting screw 42, a drive sprocket 441 mounted at the output end of the lifting motor 44, and a synchronous chain 442 wound around the drive sprocket 441 and the two lifting sprockets 421. In this embodiment 1, the lifting motor 44 is installed inside the traction frame 41, and drives the drive sprocket 441 to make the synchronous chain 442 rotate synchronously and in the same direction with the lifting sprockets 421 on both sides, thereby controlling the tension traction mechanism to enter or leave the accommodating space a axially.

[0042] like Figures 4-6As shown, the traction assembly 5 includes a driving traction roller 51 and a driven traction roller 52, and a traction gap is provided between the driving traction roller 51 and the driven traction roller 52 for the film to pass through, the traction gap is correspondingly arranged at the end of the V-shaped clamp assembly 6 below, the traction frame 4 is provided with a traction motor 511 at one end of the driving traction roller 51 to drive the driving traction roller 51 to rotate, the driven traction roller 52 is provided with a driven traction bearing seat 521 at both ends, and the traction frame 41 is provided with a gap adjusting cylinder 522 at one end away from the driving traction roller 51 to drive the driven traction roller 52 to approach or move away from the driving traction roller 51 to control the width of the traction gap, the output end of the gap adjusting cylinder 522 is connected to the driven traction bearing seat 521, the V-shaped clamp assembly 6 includes two adjusting plates 61 gradually approaching in the direction from the frame 4 to the traction assembly 5, one end of the adjusting plate 61 towards the traction assembly 5 is provided with an upper adjusting assembly 62 to control the width of the output port between the adjusting plates 61, and one end of the adjusting plate 61 towards the frame 4 is provided with a lower adjusting assembly 63 to control the width of the input port between the adjusting plates 61, the upper adjusting assembly 62 includes an upper adjusting fixed plate 621 connected with the traction frame 41, an upper adjusting seat 622 and an upper width adjusting screw 623 arranged opposite to each other at the upper ends of the two adjusting plates 61, the upper width adjusting screw 623 is threadedly connected with the two upper adjusting seats 622 and is provided with an upper adjusting hand wheel 6231 at one end penetrating through the adjusting fixed plate 621, so that the upper width adjusting screw 623 is rotatably arranged on the upper adjusting fixed plate 621 to control the relative position of the two upper adjusting seats 622, the lower adjusting assembly 63 includes a lower adjusting fixed plate 631 connected with the traction frame 41, a lower width adjusting plate 632 and a lower width adjusting screw 633 and a lower width adjusting nut 634 arranged opposite to each other at the lower ends of the two adjusting plates 63, the lower adjusting fixed plate 631 is provided with a lower adjusting fixed seat 634, the lower width adjusting screw 633 is threadedly connected with the lower width adjusting nut 634 at one end penetrating through the lower adjusting fixed seat 634 and is provided with a lower adjusting hand wheel 6331 at the other end, the lower width adjusting plate 632 is hingedly connected with the adjusting plate 61 at one end and is hingedly connected with the lower width adjusting nut 634 at the other end to form a V-shaped angle, so that the lower width adjusting screw 633 is rotatably arranged on the lower adjusting fixed plate 634 to control the angle of the two lower width adjusting plates 632, the two adjusting plates 61 are provided with two positioning plates 64 gradually narrowing in the direction from the frame 4 to the traction assembly 5, the lower adjusting fixed plate 634 is provided with a positioning adjusting strip 641 and a positioning adjusting seat 642 corresponding to the positioning plate 64, one end of the positioning adjusting strip 641 is fixedly connected with the positioning plate 64 and the other end is movably transversely inserted into the positioning adjusting seat 642, and the adjusting plate 61 includes a mounting frame 611 and a plurality of strip-shaped rods 612 uniformly distributed on the mounting frame 611, and one end of the strip-shaped rod 612 towards the positioning plate 61 is an arc-shaped end face.

[0043] Example 2: as Figures 7-10As shown, the synchronous drive assembly includes a lifting motor 44 mounted on the traction frame 41, a lifting gear 422 mounted on the lifting screw 42, a bidirectional transmission gearbox 7 mounted on the output end of the lifting motor 44, and a first synchronous shaft 45 and a second synchronous shaft 46. One end of the first synchronous shaft 45 and the second synchronous shaft 46 are respectively inserted into the bidirectional transmission gearbox 7, and the other end is respectively provided with a synchronous gear 450 that meshes with the lifting gear 422. The lifting motor 44 transmits power synchronously to the first synchronous shaft 45 and the second synchronous shaft 46 through the bidirectional transmission gearbox 7.

[0044] like Figure 10 As shown, the bidirectional transmission gearbox 7 includes a housing 71, a driving gear 72 disposed within the housing 71, and driven gears 73 disposed at both ends of the housing 71 and meshing with the driving gear 72. A first synchronous shaft 45 and a second synchronous shaft 46 respectively pass through the housing 71 and are fixedly connected to the driven gears 73. The output end of the lifting motor 44 passes through the housing 71 and is fixedly connected to the driving gear 72. A positioning sleeve 74 is provided inside the housing 71. Both the first synchronous shaft 45 and the second synchronous shaft 46 pass through the driven gears 73 and are inserted into the positioning sleeve 74 for rotation. An auxiliary gear 75 is provided on the other side of the housing 71 corresponding to the driving gear 72. An auxiliary mounting shaft 76 is provided on the positioning sleeve 74 corresponding to the auxiliary gear 75. One end of the auxiliary mounting shaft 76 is connected to the auxiliary gear 75 inside the auxiliary gear 75. The bearing 751 is connected, and the other end passes through the positioning bushing 74 and is connected to the drive gear 72. The output end of the lifting motor 44 is fixedly connected to the auxiliary mounting shaft 76, and drives the drive gear 72 to rotate by driving the auxiliary mounting shaft 76. Both sides of the traction frame 4 are provided with positioning rotating seats 40 for mounting the first synchronous rotating shaft 45 and the second synchronous rotating shaft 46. One end of the first synchronous rotating shaft 45 and the second synchronous rotating shaft 46 passes through the positioning rotating seat 40 and meshes with the lifting gear 422. The other end is respectively inserted into the bidirectional transmission gearbox 7. A linear guide rail 430 is provided between the frame 4 and the traction frame 41, which is parallel to the lifting screw 421. The lifting gear 422, the synchronous gear 450, the drive gear 72, the driven gear 73 and the auxiliary bearing 751 are all preferably bevel gears.

[0045] like Figure 11 As shown, before transportation, the integrated lifting blown film machine of this utility model needs to have its operating platform 11, stairs 12, and power distribution box 13 disassembled. Then, the tensioning and traction mechanism is axially retracted into the accommodating space a via the synchronous drive assembly. At this time, the overall height H is 2.3m, and the length of the mounting platform 1 is L, and the width is W. The mounting platform 1L is 3.2m long and W is 1.1m wide. Figure 12 The image shows a standard 40GP container (40-foot standard container) as an example, with internal dimensions of 12 meters long, 2.35 meters wide, and 2.39 meters high. (The image shows the container after being folded down.)

[0046] The film blowing machine can be directly placed into the container, at this time, 3 film blowing machines can be placed in one row in the interior of the 40GP container, and the 1.1m wide film blowing machine can be placed side by side in each row in the interior of the 40GP container, so that the whole container can directly place 6 film blowing machines, and there is a space of 1.9m*2.35*2.39±0.5m for placing the operation platform 11, the stairs 12 and the distribution box 13 and other objects, so that the 40GP container which can only place 3 film blowing machines originally can place 6 film blowing machines, greatly reducing the transportation cost and the labor cost.

Claims

1. An integrated lifting film blowing machine, comprising a mounting platform, a plurality of heating extrusion mechanisms, a film material forming mechanism and a stretching traction mechanism arranged on the mounting platform, and a rack fixedly arranged at one end of the stretching traction mechanism corresponding to the mounting platform, characterized in that: The stretching traction mechanism comprises a traction frame arranged in a rack, a traction assembly arranged above the traction frame, and a herringbone clamp assembly arranged below the traction assembly, the rack is provided with a containing space for accommodating the stretching traction mechanism at the position corresponding to the traction frame, both ends of the traction frame are respectively provided with a lifting screw arranged on the traction frame and rotating, the rack is correspondingly provided with a fixed lifting seat at the position corresponding to the lifting screw, the rack or the traction frame is provided with a synchronous driving assembly for driving the lifting screws on both sides to rotate synchronously, the fixed lifting seat is threadedly connected with the lifting screw and drives the stretching traction mechanism to axially enter or leave the containing space through the synchronous driving assembly.

2. The integrated lift and blown film machine of claim 1, wherein: The synchronous driving assembly comprises a lifting motor arranged on the traction frame, a lifting sprocket arranged on the lifting screw, a driving sprocket arranged at the output end of the lifting motor, and a synchronous chain wound around the driving sprocket and the two lifting sprockets.

3. The integrated lift and blown film machine of claim 1, wherein: The synchronous driving assembly comprises a lifting motor arranged on the traction frame, a lifting gear arranged on the lifting screw, a bidirectional transmission gear box arranged at the output end of the lifting motor, and a first synchronous rotating shaft and a second synchronous rotating shaft, one end of each of the first and second synchronous rotating shafts penetrates into the bidirectional transmission gear box, and the other end of each of the first and second synchronous rotating shafts is provided with a synchronous gear meshing with the lifting gear, and the lifting motor synchronously transmits power to the first and second synchronous rotating shafts through the bidirectional transmission gear box.

4. The integrated lift and blown film machine of claim 3, wherein: The bidirectional transmission gear box comprises a box body, a driving gear arranged in the box body, and a driven gear arranged at both ends of the box body and meshing with the driving gear, the first and second synchronous rotating shafts penetrate into the box body and are fixedly connected with the driven gear, the output end of the lifting motor penetrates into the box body and is fixedly connected with the driving gear, the box body is provided with a positioning shaft sleeve, the first and second synchronous rotating shafts are inserted into the positioning shaft sleeve and rotate after penetrating through the driven gear, the box body is provided with an auxiliary gear on the side opposite to the driving gear, the positioning shaft sleeve is provided with an auxiliary mounting shaft corresponding to the auxiliary gear, one end of the auxiliary mounting shaft is connected with an auxiliary bearing in the auxiliary gear, and the other end of the auxiliary mounting shaft penetrates through the positioning shaft sleeve and is connected with the driving gear, the output end of the lifting motor is connected with the auxiliary mounting shaft, the rack and the traction frame are provided with positioning rotating seats for mounting the first and second synchronous rotating shafts, one end of each of the first and second synchronous rotating shafts penetrates out of the positioning rotating seat and meshes with the lifting gear, and the other end of each of the first and second synchronous rotating shafts is inserted into the bidirectional transmission gear box, and the rack and the traction frame are provided with linear guides arranged in parallel with the lifting screws.

5. The integrated lift and blown film machine of any of claims 1-4, wherein: The heating extrusion mechanism comprises an extruder, a speed reducer and a hopper, the feeding port of the extruder is connected with the hopper, the discharge ports are connected with the film material forming mechanism, the output end of the speed reducer is fixedly connected with the screw in the extruder, the film material forming mechanism comprises a wind ring and a blower arranged below the stretching traction mechanism corresponding to the installation platform, the wind ring is connected with the blower through a wind pipe and outputs the film material to the stretching traction mechanism, the heating extrusion mechanism, the film material forming mechanism and the stretching traction mechanism are arranged inside the installation platform, the length of the installation platform is L and the width is W, the height of the film blowing machine is H, wherein 3m≤L≤4m, 0.9m≤W≤1.17m, when the stretching traction mechanism enters the containing space, 2m≤H≤2.7m.

6. The integrated lift and blown film machine of claim 5, wherein: The machine frame is provided with an operation platform which is detachably connected with the machine frame, the operation platform is provided with a staircase which is detachably connected with the operation platform, the operation platform is provided with a gap slot corresponding to the wind ring for the stretching traction mechanism to pass through, the side of the machine frame is provided with a distribution box which is detachably connected with the machine frame, and the blower is arranged above the speed reducer.

7. The integrated lift and blown film machine of any of claims 1-4, wherein: The traction assembly comprises a driving traction roller and a driven traction roller, a traction gap for the film material to pass through is arranged between the driving traction roller and the driven traction roller, the traction gap is correspondingly arranged with the end of the herringbone clamp assembly below, one end of the traction frame corresponding to the driving traction roller is provided with a traction motor for driving the driving traction roller to rotate, the driven traction roller is provided with driven traction bearing seats at both ends, and one end of the traction frame away from the driving traction roller is provided with a gap adjusting cylinder for driving the driven traction roller to approach or move away from the driving traction roller and thus controlling the width of the traction gap.

8. The integrated lift and blown film machine of any of claims 1-4, wherein: The herringbone clamp assembly comprises two adjusting plates which gradually approach each other in the direction from the machine frame to the traction assembly, one end of the adjusting plate towards the traction assembly is provided with an upper adjusting assembly for controlling the width of the output port between the adjusting plates, and the other end of the adjusting plate towards the machine frame is provided with a lower adjusting assembly for controlling the width of the input port between the adjusting plates.

9. The integrated lift and blown film machine of claim 8, wherein: The upper adjusting assembly comprises an upper adjusting fixed plate connected with the traction frame, upper adjusting seats arranged opposite to each other at the upper ends of the two adjusting plates, and an upper width adjusting screw, the upper width adjusting screw is threadedly connected with the two upper adjusting seats and is provided with an upper adjusting hand wheel at one end penetrating through the adjusting fixed plate, so that the upper width adjusting screw is rotatably arranged on the upper adjusting fixed plate to control the relative positions of the two upper adjusting seats, the lower adjusting assembly comprises a lower adjusting fixed plate connected with the traction frame, lower width adjusting plates arranged opposite to each other at the lower ends of the two adjusting plates, a lower width adjusting screw and a lower width adjusting nut, the lower adjusting fixed plate is provided with a lower adjusting fixed seat, one end of the lower width adjusting screw penetrates through the lower adjusting fixed seat and is threadedly connected with the lower width adjusting nut, and the other end is provided with a lower adjusting hand wheel, one end of the lower width adjusting plate is hingedly connected with the adjusting plate, the other end of the lower width adjusting plate is hingedly connected with the lower width adjusting nut in a V-shaped manner, and the lower width adjusting screw is rotatably arranged on the lower adjusting fixed plate to control the included angle of the two lower width adjusting plates.

10. The integrated lift and blown film machine of claim 9, wherein: The adjusting plate is provided with a plurality of positioning plates gradually narrowing in the direction from the frame to the traction assembly, the lower adjusting fixed plate is provided with a positioning adjusting strip and a positioning adjusting seat corresponding to the positioning plate, one end of the positioning adjusting strip is fixedly connected with the positioning plate, the other end is movably inserted into the positioning adjusting seat in the transverse direction, and the adjusting plate comprises a mounting frame and a plurality of strip-shaped rod bodies uniformly distributed on the mounting frame.

Images