CN113478787B - Blow molding machine - Google Patents

Abstract

The application discloses blowing machine, including workstation and locking mechanism, install the extruder on the workstation, still include retooling mechanism, count module and treater, retooling mechanism has two, and the treater is used for obtaining the processing quantity of count module statistics and compares with the first default that prestores, second default respectively, and retooling mechanism stores the second forming die and replaces first forming die with the second forming die after starting in order to install on the slide. The two first forming dies obtain blanks from the extruder in turn, when the number of the lamp shells exceeds a first preset value, one first forming die stops blowing and is replaced by a second forming die through the die changing mechanism, the other first forming die continues to work until the number of the lamp shells reaches a second preset value, the first forming die is replaced by the second forming die, at the moment, the second forming die which is replaced in advance can start the blowing work of the lamp shells of the next batch, no gap exists between the two batches of the lamp shells, and the processing efficiency is effectively improved.

Description

Blow molding machine

Technical Field

The application relates to the technical field of blow molding, in particular to a blow molding machine.

Background

Blow molding, also known as blow molding, is a method of processing plastic. The blow molding machine is a device for processing various plastic parts in a blow molding mode.

Chinese patent with publication number CN109501208B discloses a blow molding machine, which comprises a frame, an extruder, a mold clamping mechanism for product molding, a blowing mechanism, a cutting assembly for cutting off the extruder extrusion material, and a trimming mechanism, wherein the mold clamping mechanism comprises a base, a first movable mold and a second movable mold which slide relative to the base, a double-headed cylinder fixed on the base at two ends respectively fixed with the first movable mold and the second movable mold, and a driving cylinder for driving the base to move horizontally, and the first movable mold and the second movable mold are butted to form a cavity and a clamping cavity.

When the blow molding machine works, the extruder extrudes a tubular blank, then the cylinder is driven to drive the base to move, the double-headed cylinder drives the first movable mold and the second movable mold to be butted to form a cavity, and at the moment, the blank is positioned in the cavity and the bottom of the blank is clamped, adhered and sealed by the first movable mold and the second movable mold; then, the trimming component cuts off the blank, the driving cylinder drives the base to move so that the blank is positioned below the blowing mechanism, and the ingredients are expanded outwards along with the entering of gas to be abutted against the inner wall of the cavity.

In the plastic lamp industry, the outer envelope of the lamp is also made by means of a blow-moulding machine. Due to the various shapes of the lamp housing, the enterprise needs to prepare a plurality of corresponding molds. When lamps with various shapes need to be processed in a certain quantity, after the blow molding of the lamp shells of the current batch is finished, the machine needs to be stopped and the mold needs to be replaced, and then the lamp shells of the next batch are processed. Which would undoubtedly affect the efficiency of the blow molding machine.

Disclosure of Invention

In order to improve the processing efficiency of a blow molding machine, the application provides a blow molding machine.

The application provides a blowing machine adopts following technical scheme:

a blow molding machine comprises a workbench and a mold clamping mechanism, wherein an extruder is mounted on the workbench, the mold clamping mechanism comprises two slide rails, two slide seats and a driving piece, the slide rails are positioned below the extruder, the two slide seats are both connected to the slide rails in a sliding manner, the driving piece is used for controlling the two slide seats to move along the slide rails, and the slide seats are both detachably connected with a first molding die;

the extruder mould changing mechanism comprises two mould changing mechanisms, a counting module and a processor, wherein the two mould changing mechanisms are respectively positioned at two sides of the extruder, and the mould changing mechanisms and the counting module are electrically connected with the processor;

the counting module is used for counting the processing quantity of the products in the current batch;

the processor is used for acquiring the processing quantity counted by the counting module and comparing the processing quantity with a first preset value and a second preset value which are prestored respectively, the first preset value is smaller than the second preset value, and when the processing quantity is smaller than the first preset value, the processor controls the driving piece to enable the two sliding seats to pass through the lower part of the extruder in turn; when the machining quantity is not less than a first preset value, the processor controls one die changing mechanism to start, and when the machining quantity reaches a second preset value, the processor controls the other die changing mechanism to start;

the mould replacing mechanism stores a second moulding mould and replaces the first moulding mould with the second moulding mould to be arranged on the sliding seat after the mould replacing mechanism is started.

By adopting the technical scheme, at the beginning, the two first forming dies obtain blanks from the extruder in turn, alternate blow molding and cooling are performed, the processing efficiency of the batch of lamp shells is improved, when the number of the lamp shells exceeds a first preset value, one first forming die stops blow molding and is replaced by the second forming die through the die replacing mechanism, the other first forming die continues to work until the number of the lamp shells reaches a second preset value, the first forming die is replaced by the second forming die after being completed, the second forming die which is replaced in advance in the replacing process can start the blow molding work of the next batch of lamp shells, no gap exists between the two batches of lamp shells, and the processing efficiency can be effectively improved.

Optionally, install double-end cylinder on the slide, double-end cylinder's both ends are fixed with the mount pad respectively, it is equipped with the electro-magnet to inlay on the mount pad, first forming die includes two first movable moulds, the bottom of first movable mould is fixed with the iron plate, and two first movable moulds are fixed on two mount pads through the mode that magnetism is connected respectively, the second forming die includes two second movable moulds, and the iron plate is installed equally in the bottom of two second movable moulds.

Through adopting above-mentioned technical scheme, when the electro-magnet circular telegram, thereby the electro-magnet produces magnetism and produces the appeal to magnet, and then makes first movable mould or second movable mould adsorb on the mount pad, and when first movable mould or second movable mould need be dismantled, only need to cut off the power supply to the electro-magnet, can conveniently take off first movable mould or second movable mould from the mount pad for first movable mould and second movable mould can more easily dismouting.

Optionally, an ejection cylinder is arranged in the mounting seat, an output shaft of the ejection cylinder is vertically upward and connected with an insertion rod, a through hole through which the insertion rod penetrates is formed in the mounting seat, and insertion holes matched with the insertion rod are formed in the first movable die and the second movable die.

Through adopting above-mentioned technical scheme, the cooperation of electro-magnet and magnet can ensure that first movable mould or second movable mould are stable on the mount pad, and the cooperation of peg graft pole and corresponding through-hole then can ensure that first movable mould or second movable mould can correctly install on the mount pad, ensures can smoothly the compound die and does not influence the quality of lamp body.

Optionally, the retooling mechanism includes that two set up the support in the slide rail both sides respectively, and the length direction along the slide rail has set gradually two on every support and has placed the chamber, place the shape looks adaptation of chamber and first movable mould, second movable mould, the bottom of placing the chamber all with the top parallel and level of mount pad, double-end cylinder's both ends output shaft is respectively towards the support of slide rail both sides, still be provided with on the support and be used for promoting the transmission assembly that first movable mould and second movable mould passed in and out and place the chamber.

Through adopting above-mentioned technical scheme, when no longer magnetism is connected between first movable mould and mount pad, with the help of drive assembly with the first movable mould on the mount pad from the mount pad stimulate the vacant chamber of placing for leave installation space on the mount pad, then the mount pad moves the one side of placing the chamber that needs the second movable mould of changing place along with the slide, drive assembly again with the second movable mould on the mount pad, thereby accomplish the change of first movable mould and second movable mould.

Optionally, the transmission assembly comprises a plurality of lifting tables used for moving in the vertical direction, the lifting tables correspond to the placing cavities one to one, the lifting tables are located on one sides, away from the sliding rail, of the corresponding placing cavities, electric cylinders are arranged on each lifting table, output shafts of the electric cylinders penetrate into the placing cavities and face the sliding rail, hooks are arranged on the output shafts of the electric cylinders, and ring buckles matched with the hooks are arranged on the side walls, away from the sliding rail, of the first movable mold and the second movable mold.

Through adopting above-mentioned technical scheme, the setting up of elevating platform makes during the couple can place the latch closure, and the removal of first movable mould or second movable mould is controlled to electricity jar rethread couple and being connected of latch closure.

Optionally, the ring buckle includes a connecting rod and a connecting ring, one end of the connecting rod is fixed on the corresponding first movable die or the second movable die, the other end of the connecting rod is far away from one side of the slide rail and extends to be fixed with the connecting ring, a butt joint block is further arranged on the output shaft of the electric cylinder, the butt joint block is closer to the slide rail than the hook, and the horizontal distance from the butt joint block to the hook is smaller than the length of the connecting rod.

By adopting the technical scheme, when the hook is hooked on the connecting ring, the abutting block is not contacted with the side wall of the first movable die or the second movable die facing the hook, and the abutting block does not interfere with the use of the hook; when the first movable die or the second movable die needs to be pushed to move towards the outside of the placing cavity, the lifting platform is lifted to enable the hook to be separated from the connecting ring, and the abutting block continues to move towards one side of the sliding rail, so that the abutting block abuts against the side wall of the first movable die or the second movable die.

Optionally, corresponding limiting grooves are formed in the top of the mounting seat and the bottom of the placing cavity, the length direction of the limiting grooves is the same as that of the output shaft of the electric cylinder, and limiting blocks corresponding to the limiting grooves are installed at the bottoms of the first movable die and the second movable die.

Through adopting above-mentioned technical scheme, the mount pad is close to under the control of two-way cylinder and places the chamber for spacing groove on the mount pad with place the spacing groove intercommunication of intracavity, the spacing groove that can follow the intercommunication when first movable mould of drive assembly control or second movable mould remove, ensure that first movable mould and second movable mould can not appear deflecting at the removal in-process.

Optionally, the workbench is further provided with four discharging pipelines which are parallel to each other and arranged in sequence along the length direction of the slide rail, one end of each discharging pipeline is located below the slide rail, and the other end of each discharging pipeline inclines downwards and is far away from the slide rail.

Through adopting above-mentioned technical scheme, the lamp body that first movable mould and second movable mould were processed selects different ejection of compact pipelines when the ejection of compact, avoids two kinds of different lamp bodies to mix together to can also make the statistics of count module more accurate.

Optionally, the workbench is provided with two trimming assemblies for trimming a blow molding opening of the blow molding part, the two trimming assemblies are respectively located on two sides of the extruder, the trimming assemblies comprise trimming cylinders fixed to the workbench, mounting frames fixed to output shafts of the trimming cylinders, and trimming knives fixed to the mounting frames, and the output shafts of the trimming cylinders horizontally face one side of the slide rail.

By adopting the technical scheme, after the blow molding of the lamp housing is completed, the opening trimming knife directly cuts off waste at the blow molding opening of the lamp housing, so that the workload of workers in subsequent work is reduced.

Optionally, keep away from and install a plurality of and repair a mouthful subassembly that connect of subassembly one-to-one on the support of repairing a mouthful subassembly, connect the material subassembly including driving actuating cylinder, dump bin and stock guide, drive actuating cylinder and fix on the support, the output shaft that drives actuating cylinder is towards slide rail one side and is connected with the dump bin, the dump bin is uncovered setting, the stock guide is in on the dump bin top is close to guide rail one side lateral wall, the one end slope that the dump bin was kept away from to the stock guide sets up and is corresponding with repairing a mouthful sword.

Through adopting above-mentioned technical scheme, before the mouthful sword begins to excise the waste material, the stock guide supports earlier and leans on one side lateral wall that first movable mould or second movable mould kept away from the mouthful sword of repairing, repaiies the mouthful sword with the waste material excision and promote the waste material fall into the stock guide on, the waste material is drawn into in the waste bin along the stock guide under the inertial action in order to realize the storage of waste material.

In summary, the present application includes at least one of the following beneficial technical effects: through setting up count module and treater, come control die change mechanism's use according to the processing progress of lamp body to reach the continuous processing of lamp body with the help of changing the mould in turn, make the processing of two batches of lamp body can seamless completion butt joint.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a cross-sectional view of an embodiment of the present application.

Fig. 3 is a partial structural schematic diagram of an embodiment of the present application.

Fig. 4 is a schematic view of the connection relationship between the hook and the connection ring according to the embodiment of the present application.

Description of reference numerals: 1. a work table; 11. a support leg; 12. a discharge pipeline; 13. a discharge port; 21. a transmitting head; 22. a receiving head; 3. a mold clamping mechanism; 31. a slide rail; 32. a slide base; 321. a double-ended cylinder; 322. a mounting seat; 323. a limiting groove; 324. ejecting out the cylinder; 33. a drive member; 4. a die changing mechanism; 41. a support; 42. a placement chamber; 43. a transmission assembly; 431. a lifting platform; 432. a lifting cylinder; 433. an electric cylinder; 434. a connecting portion; 435. a hooking part; 436. a butting block; 437. a spring; 5. an extruder; 6. an air injection mechanism; 7. a first movable mold; 71. a limiting block; 72. a cavity; 73. a connecting rod; 74. a connecting ring; 8. a second movable mold; 9. a mouth repair assembly; 91. repairing the opening cylinder; 92. a mounting frame; 93. trimming a cutter; 100. a material receiving assembly; 101. a driving cylinder; 102. a waste bin; 103. a material guide plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a blow molding machine. Referring to fig. 1 and 2, the blow molding machine includes a table 1, support legs 11 are fixed to four corners of the table 1, and the table 1 is supported on the ground by the support legs 11. Four discharge pipelines 12 are arranged side by side on one side of the workbench 1 facing the bottom surface, one ends of the discharge pipelines 12 are fixed on the workbench 1, and the other ends of the discharge pipelines 12 are inclined downwards and extend towards the ground. Run through on the workstation 1 and have four discharge gates 13, four discharge gates 13 respectively with four discharge pipeline 12 one-to-one, discharge gate 13 is directly over discharge pipeline 12 and the tip that workstation 1 is connected, all install the count module on the lateral wall of every discharge gate 13, the count module is correlation formula infrared ray counter, it includes transmitting head 21 and receiving head 22, transmitting head 21 and receiving head 22 are installed respectively on two lateral walls that discharge gate 13 is relative, when the object blocks between transmitting head 21 and receiving head 22, count module record a numerical value.

Referring to fig. 1, a die clamping mechanism 3, a die changing mechanism 4 and an extruder 5 are arranged on the surface of the workbench 1 facing away from the bottom surface, the extruder 5 is located on one side of the two slide rails 31, an extrusion head for extruding plastics is arranged on the extruder 5, and the extrusion head is vertically downward and is located right above the middle position between the two slide rails 31. The extruder 5 is further provided with a liftable air injection mechanism 6 on both sides along the length direction of the slide rail 31, and the die clamping mechanism 3 is used for controlling the opening and closing of the die and moving the die between the extruder 5 and the air injection mechanism 6 along the slide rail 31. The two types of moulds are respectively a first moulding mould and a second moulding mould, the shapes of the first moulding mould and the second moulding mould are only different, and the rest structures are the same. Wherein the first molding die is mounted on the clamping mechanism 3 before the start of blow molding, and the second molding die is in the die-changing mechanism 4, and the die-changing mechanism 4 is used for replacing the first molding die on the clamping mechanism 3 with the second molding die during blow molding.

Referring to fig. 3, the clamping mechanism 3 includes two slide rails 31, a slide seat 32 and a driving member 33, where the two slide rails 31 are disposed in parallel and located at two sides of the four discharge ports 13 respectively. There are two slide bases 32, two ends of each slide base 32 are respectively connected to the two slide rails 31 in a sliding manner, the two slide bases 32 are respectively located at two ends of the slide rails 31, and notches corresponding to the discharge holes 13 are formed in the slide bases 32. The driving part 33 is a driving cylinder 101, and there are two driving cylinders 101, the two driving cylinders 101 are respectively located at two ends of the slide rail 31, and the driving cylinders 101 are fixed on the working table 1, and the output shafts of the driving cylinders 101 are parallel to the slide rail 31 and connected to the slide carriages 32 on the corresponding sides.

Referring to fig. 1 and 3, a double-headed cylinder 321 is mounted on a side wall of the slide 32, an output shaft of the double-headed cylinder 321 is arranged along a horizontal direction, and a length direction of the output shaft of the double-headed cylinder 321 is perpendicular to a length direction of the slide rail 31. Two output shafts of the double-head cylinder 321 are respectively fixed with a mounting seat 322, and the two mounting seats 322 are both connected on the corresponding sliding seats 32 in a sliding manner. The sliding direction of the mounting seat 322 is parallel to the length direction of the output shaft of the double-headed cylinder 321.

Referring to fig. 2 and 3, a limiting groove 323 is formed in the surface of the mounting seat 322 facing away from the workbench 1, the limiting groove 323 is arranged along the sliding direction of the mounting seat 322, the end of the limiting groove 323 extends to the side wall of the mounting seat 322, and an electromagnet is embedded in the bottom of the limiting groove 323 of the mounting seat 322. The mounting seat 322 is further internally provided with two ejection cylinders 324, the two ejection cylinders 324 are respectively located on two sides of the limiting groove 323, the output shaft of the ejection cylinders 324 faces upwards vertically and is connected with the insertion rod, the surface of the mounting seat 322, which faces away from the workbench 1, is further provided with two through holes, the two through holes are respectively in one-to-one correspondence with the two insertion rods, and when the output shaft of the ejection cylinders 324 extends, the insertion rods penetrate out of the corresponding through holes.

Referring to fig. 3 and 4, the first molding die includes two first movable dies 7, a limiting block 71 adapted to the limiting groove 323 is disposed at the bottom of the first movable die 7, and the two first movable dies 7 are respectively mounted on two mounting seats 322 of the mold clamping mechanism 3 through the limiting block 71. The opposite side walls of the two first movable dies 7 are provided with cavities 72, and when the two first movable dies 7 are attached together, the two cavities 72 are communicated to form a die cavity. An iron block is embedded in the limiting block 71, and the first movable die 7 is magnetically attracted to the mounting base 322 through the iron block and the electrified electromagnet. The bottom of the first movable die 7 is also provided with an inserting hole matched with the inserting rod. And a ring buckle is arranged on the side wall of the first movable die 7, which is far away from the cavity 72, and comprises a connecting rod 73 and a connecting ring 74, one end of the connecting rod 73 is fixed on the corresponding first movable die 7, and the other end of the connecting rod 73 extends to the side far away from the slide seat 32 along the horizontal direction and is fixed with the connecting ring 74. Accordingly, the second molding die includes two second movable dies 8, and the second movable dies 8 are different from the first movable dies 7 except for the cavity 72.

Referring to fig. 1, there are two die change mechanisms 4, and the two die change mechanisms 4 are respectively located at both sides of an extruder 5. The mold changing mechanism 4 comprises two supports 41, the supports 41 are fixed on the worktable 1, and the two supports 41 of the same mold changing mechanism 4 are respectively arranged at two sides of the moving path of the slide 32. Two placing cavities 42 are sequentially arranged on each bracket 41 along the length direction of the sliding rail 31. The placing cavity 42 is matched with the first movable die 7 and the second movable die 8 in shape, the bottom of the placing cavity 42 is flush with the top of the mounting seat 322, the bottom of the placing cavity 42 is also provided with a limiting groove 323 matched with the limiting block 71, the limiting groove 323 at the bottom of the placing cavity 42 is at the same height as the limiting groove 323 at the top of the mounting seat 322 and is parallel to the mounting seat, and the limiting groove 323 at the bottom of the placing cavity 42 extends to the side wall of the support 41 close to the slide rail 31.

Referring to fig. 2 and 4, the support 41 is further provided with a transmission assembly 43 for pushing the first movable die 7 and the second movable die 8 into and out of the placing cavity 42. The transmission assembly 43 includes a plurality of lifting platforms 431 for moving in the vertical direction, the plurality of lifting platforms 431 are in one-to-one correspondence with the plurality of placing cavities 42, and the lifting platforms 431 are located at the side of the corresponding placing cavities 42 away from the slide rail 31. A lifting cylinder 432 is embedded on the workbench 1 below each lifting platform 431, and the output shaft of the lifting cylinder 432 faces upwards and is fixed on the corresponding lifting platform 431. And each lifting platform 431 is provided with an electric cylinder 433, the output shaft of the electric cylinder 433 penetrates into the placing cavity 42 and faces one side of the slide rail 31, and the length direction of the output shaft of the electric cylinder 433 is perpendicular to the length direction of the slide rail 31. The output shaft of the electric cylinder 433 is provided with a hook and an abutment block 436. The couple includes connecting portion 434 and colludes even portion 435, and connecting portion 434 is fixed on electric jar 433 output shaft, colludes even portion 435 and articulates on connecting portion 434, colludes even portion 435 and is connected with spring 437 between the connecting portion 434, colludes even portion 435 and to set up to the one side slope of keeping away from slide rail 31 under the effect of spring 437. The abutment block 436 is closer to the slide rail 31 than the hook, and the horizontal distance from the abutment block 436 to the hook is smaller than the length of the connecting rod 73.

When the first movable die 7 or the second movable die 8 is hooked, the output shaft of the electric cylinder 433 extends, the hooking part 435 contacts the connecting ring 74 first, the hooking part 435 rotates along with the continuous extension of the output shaft of the electric cylinder 433, the hooking part 435 can pass through the side wall of the connecting ring 74, the hooking part 435 returns under the action of the spring 437 immediately after losing the extrusion of the side wall of the connecting ring 74, and therefore when the output shaft of the electric cylinder 433 shortens, the first movable die 7 or the second movable die 8 is brought into the support 41 through the hooking of the hooking part 435 on the connecting ring 74. When the first movable die 7 or the second movable die 8 is pushed from the inside of the bracket 41 to the side of the slide seat 32, when the hooking part 435 is located in the connecting ring 74, the output shaft of the electric cylinder 433 continues to be extended, so that the abutting block 436 abuts against the side wall of the first movable die 7 or the second movable die 8, thereby pushing the first movable die 7 or the second movable die 8 by the electric cylinder 433, after the pushing is completed, the lifting cylinder 432 is started, the hooking part 435 moves upwards and is separated from the connecting ring 74, and thereby the hook and the connecting ring 74 are separated.

Referring to fig. 1 and 2, a trimming assembly 9 is arranged between the extruder 5 and the die changing assembly, the trimming assembly 9 includes a trimming cylinder 91 fixed to the work table 1, a mounting frame 92 fixed to an output shaft of the trimming cylinder 91, and a trimming knife 93 fixed to the mounting frame 92, the output shaft of the trimming cylinder 91 horizontally faces one side of the slide rail 31, and the height of the trimming knife 93 is matched with the top of the first movable die 7 or the second movable die 8 mounted on the mounting base 322.

Referring to fig. 1 and 2, two material receiving assemblies 100 corresponding to the opening trimming assemblies 9 one to one are mounted on the support 41 far away from the opening trimming assemblies 9, each material receiving assembly 100 comprises a driving cylinder 101, a waste bin 102 and a material guide plate 103, the driving cylinders 101 are fixed on the corresponding support 41, output shafts of the driving cylinders 101 face one sides of the corresponding opening trimming knives 93 and are connected with the waste bin 102, and the waste bin 102 is open. The material guide plate 103 is arranged on the side wall of the top of the waste box 102 close to the guide rail, and one end of the material guide plate 103 far away from the waste box 102 is obliquely arranged upwards and corresponds to the trimming knife 93. When the slide base 32 moves between the trimming component 9 and the receiving component 100, the output shaft of the driving cylinder 101 extends again, the guide plate 103 can abut against the side wall of the first movable die 7 or the second movable die 8 on the slide base 32, and the end part of the guide plate 103 at the highest position is flush with the top surface of the corresponding first movable die 7 or the second movable die 8.

In order to realize automatic switching between two batches of lamp housing processing, the blow molding machine also comprises a processor, wherein the operations of the die assembly mechanism 3, the extruder 5 and the mouth repairing assembly 9 are controlled by the processor, and the die change mechanism 4 and the counting module are also electrically connected with the processor. The processor stores a first preset value, a second preset value and a third preset value, wherein the second preset value is the number of the lamp shells to be processed in the first batch, the first preset value is lower than the second preset value but cannot be greatly different from the second preset value, for example, eighty percent of the number of the lamp shells to be processed in the first batch can be set, and the third preset value is the number of the lamp shells to be processed in the second batch.

Correspondingly, in order to separately collect the lamp shells processed in two batches, the four discharge ports 13 will be divided into two groups by taking the extruder 5 as a boundary, and the two discharge ports 13 in each group are respectively used for discharging the first molding die and the second molding die on the corresponding side. The processor adds the counts of the counting modules in the discharge holes 13 of different groups but corresponding to the same cavity 72 together, and the two added values are the real-time number of the lamp housings processed in the first batch and the real-time number of the lamp housings processed in the second batch respectively.

When the number of the lamp shells processed in the first batch is smaller than a first preset value, the processor controls the driving part 33 to enable the two sliding seats 32 to pass through the lower part of the extruder 5 in turn; when the machining number is not less than the first preset value, the processor controls one die change mechanism 4 to start, and when the machining number reaches the second preset value, the processor controls the other die change mechanism 4 to start.

The implementation principle of the blow molding machine in the embodiment of the application is as follows: at the beginning of production, a first forming die is mounted on each of the two slides 32, and a second forming die is placed in the holder 41. The first forming die moves to the position right below the extruder 5 along with the slide seat 32, the extruder 5 injects the blank into the die cavity of the first forming die, the first forming die moves to the position right below the air blowing pipeline, and at the moment, the other first forming die moves to the position right below the extruder 5 to inject the blank. The air blowing pipeline moves downwards to extend into the corresponding blank, and the air blowing pipeline blows air into the blank to form the shape of the lamp. After the blank is cooled, the blowing pipeline is reset, the first forming die is moved to a position between the receiving assembly 100 and the trimming assembly 9, the guide plate 103 firstly abuts against the first forming die, then the trimming knife 93 cuts off waste materials at the top of the first forming die, and the cut waste materials are pushed onto the guide plate 103 by the trimming knife 93 and enter the waste material box 102 along the guide plate 103. After the trimming knife 93 and the material guide plate 103 are reset, the first molding die can be put into the injection molding processing again.

When the number of lamps reaches the first preset value, one slide 32 no longer participates in the injection molding work, and the second molding die is replaced by the first molding die with the help of the die change assembly. Until the lamp forming data reaches the second preset value, the slide carriage 32 still provided with the first forming die starts to perform die replacement through the die replacement assembly, and the slide carriage 32 provided with the second forming die is put into operation to start producing the second lamp. The other slide 32 will be put into operation directly after the die change is completed. And stopping the whole blow molding machine until the number of the second lamps reaches a third preset value.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a blow molding machine, includes workstation (1) and locking mechanism (3), install extruder (5) on workstation (1), its characterized in that: the die clamping mechanism (3) comprises two sliding rails (31), two sliding seats (32) and a driving part (33), wherein the sliding rails (31) are positioned below the extruder (5), the two sliding seats (32) are connected to the sliding rails (31) in a sliding manner, the driving part (33) is used for controlling the two sliding seats (32) to move along the sliding rails (31), and the sliding seats (32) are detachably connected with first forming dies;

the extruder mould changing mechanism comprises two mould changing mechanisms (4), a counting module and a processor, wherein the two mould changing mechanisms (4) are respectively positioned at two sides of the extruder (5), and the mould changing mechanisms (4) and the counting module are electrically connected with the processor;

the counting module is used for counting the processing quantity of the products in the current batch;

the processor is used for acquiring the processing quantity counted by the counting module and comparing the processing quantity with a first preset value and a second preset value which are prestored respectively, the first preset value is smaller than the second preset value, and when the processing quantity is smaller than the first preset value, the processor controls the driving piece (33) to enable the two sliding seats (32) to pass through the lower part of the extruder (5) in turn; when the machining quantity is not less than a first preset value, the processor controls one mold changing mechanism (4) to start, and when the machining quantity reaches a second preset value, the processor controls the other mold changing mechanism (4) to start;

the mould changing mechanism (4) stores a second moulding mould and replaces the first moulding mould to be arranged on the sliding base (32) after being started.

2. A blow molding machine according to claim 1, characterized in that: install double-end cylinder (321) on slide (32), the both ends of double-end cylinder (321) are fixed with mount pad (322) respectively, it is equipped with the electro-magnet to inlay on mount pad (322), first forming die includes two first movable moulds (7), the bottom of first movable mould (7) is fixed with the iron plate, and two first movable moulds (7) are fixed on two mount pads (322) through the mode that magnetism is connected respectively, the second forming die includes two second movable moulds (8), and the iron plate is installed equally to the bottom of two second movable moulds (8).

3. A blow molding machine according to claim 2, characterized in that: the device is characterized in that an ejection cylinder (324) is arranged in the mounting seat (322), an output shaft of the ejection cylinder (324) vertically faces upwards and is connected with an insertion rod, a through hole for the insertion rod to penetrate out is formed in the mounting seat (322), and insertion holes matched with the insertion rod are formed in the first movable die (7) and the second movable die (8).

4. A blow molding machine according to claim 2, characterized in that: die change mechanism (4) include that two set up support (41) in slide rail (31) both sides respectively, and the length direction who follows slide rail (31) on every support (41) has set gradually two and places chamber (42), place the shape looks adaptation of chamber (42) and first movable mould (7), second movable mould (8), the bottom of placing chamber (42) all with the top parallel and level of mount pad (322), the both ends output shaft of double-end cylinder (321) is towards support (41) of slide rail (31) both sides respectively, still be provided with on support (41) and be used for promoting first movable mould (7) and second movable mould (8) business turn over and place transmission assembly (43) of chamber (42).

5. A blow molding machine according to claim 4, characterized in that: transmission unit (43) include a plurality of elevating platforms (431) that are used for removing at vertical direction, a plurality of elevating platforms (431) and a plurality of chamber (42) one-to-one of placing, elevating platform (431) are in the corresponding one side of placing chamber (42) and keeping away from slide rail (31), are provided with electric jar (433) on every elevating platform (431), the output shaft of electric jar (433) penetrates to place in chamber (42) and towards slide rail (31), be provided with the couple on the output shaft of electric jar (433), all install the latch closure with couple looks adaptation on the lateral wall that first movable mould (7) and second movable mould (8) deviate from slide rail (31).

6. A blow molding machine according to claim 5, characterized in that: the buckle comprises a connecting rod (73) and a connecting ring (74), one end of the connecting rod (73) is fixed on the corresponding first movable die (7) or the second movable die (8), the other end of the connecting rod (73) is far away from one side of the sliding rail (31) and extends and is fixed with the connecting ring (74), a butting block (436) is further arranged on an output shaft of the electric cylinder (433), the butting block (436) is closer to the sliding rail (31) than the hook, and the horizontal distance from the butting block (436) to the hook is smaller than the length of the connecting rod (73).

7. A blow molding machine according to claim 5, characterized in that: the top of the mounting seat (322) and the bottom of the placing cavity (42) are provided with corresponding limiting grooves (323), the length direction of the limiting grooves (323) is the same as that of the output shaft of the electric cylinder (433), and the bottoms of the first movable die (7) and the second movable die (8) are provided with limiting blocks (71) corresponding to the limiting grooves (323).

8. A blow molding machine according to claim 4, characterized in that: still be provided with four ejection of compact pipelines (12) on workstation (1), four ejection of compact pipelines (12) are parallel to each other, and ejection of compact pipeline (12) set gradually along the length direction of slide rail (31), and the one end of ejection of compact pipeline (12) is in the below of slide rail (31), and the other end slope of ejection of compact pipeline (12) is down and keep away from slide rail (31).

9. A blow molding machine according to claim 4, characterized in that: be provided with two on workstation (1) and be used for repairing repair a mouthful subassembly (9) of blowing piece blowing mouth, two are repaiied mouthful subassembly (9) and are in the both sides of extruder (5) respectively, repair mouthful subassembly (9) including with workstation (1) fixed repair mouthful cylinder (91), fix and repair a mouthful mounting bracket (92) on repairing mouthful cylinder (91) output shaft, fix and repair a mouthful sword (93) on mounting bracket (92), the output shaft level of repairing mouthful cylinder (91) is towards slide rail (31) one side.

10. A blow molding machine according to claim 9, characterized in that: keep away from on support (41) of repairing a mouthful subassembly (9) install a plurality ofly with repair a mouthful subassembly (9) one-to-one connect material subassembly (100), connect material subassembly (100) including driving actuating cylinder (101), dump bin (102) and stock guide (103), drive actuating cylinder (101) and fix on support (41), the output shaft that drives actuating cylinder (101) is towards slide rail (31) one side and is connected with dump bin (102), dump bin (102) are uncovered setting, stock guide (103) are in on dump bin (102) top is close to guide rail one side lateral wall, the one end slope that dump bin (102) were kept away from in stock guide (103) sets up and is corresponding with repairing a mouthful sword (93) up.

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