Distance transfer device and bottle blowing machine

Abstract

The utility model relates to a spacing transfer device and a bottle blowing machine. The defect of unsmooth operation exists in bottle blank separation transfer operation of an existing bottle blowing machine. The device comprises a support, a transfer channel, a mechanical arm and a distance separation mechanism, the distance separation mechanism and the mechanical arm are arranged below and above the transfer channel respectively, the distance separation mechanism comprises an annular chain and a blank shifting piece, and the blank shifting piece can be switched between a shifting state and an avoiding state. And after the bottle blanks received at the inlet of the transfer channel are pushed and separated by the blank shifting pieces in the shifting state, the bottle blanks are grabbed and transferred by the mechanical arm, and the blank shifting pieces on the way are pushed to the avoiding state. The mechanical arm and the distance separation mechanism are arranged above and below the transfer channel respectively, so that the mechanical arm and the distance separation mechanism can apply acting force to the bottle blanks by utilizing different parts of the bottle blanks, the bottle blanks can be smoothly transferred between the distance separation mechanism and the mechanical arm, and the distance separation operation and the transfer operation of the bottle blanks can be accurately realized; and the bottle blank is prevented from falling off, and the use experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic processing, concretely relates to a distance transfer device and bottle blowing machine. BACKGROUND

[0002] The existing bottle blowing machine comprises a rack, a heating device, a distance transfer device and a bottle blowing device arranged on the rack, the heating device softens bottle blanks by heating, the distance transfer device receives the softened bottle blanks and transports the bottle blanks after distance separation to the bottle blowing device, and the bottle blowing device receives the bottle blanks transferred by distance and blows the bottle blanks into bottles. The existing distance transfer device comprises a distance separation mechanism and a transfer mechanism, and the distance separation mechanism and the transfer mechanism need to cooperate with and hand over the bottle blanks. Since the part of the bottle blank that can be obtained and transported after being heated and softened is small, the area of the bottle blank that can contact the distance separation mechanism or the transfer mechanism is small, which not only requires higher precision for the action of the distance separation mechanism and the transfer mechanism when handing over and transporting the bottle blank, but also affects the reliability of obtaining the bottle blank due to the small contact area between the bottle blank and the distance separation mechanism and between the bottle blank and the transfer mechanism, and the bottle blank is prone to falling off during transportation. SUMMARY

[0003] In order to solve the problems in the prior art, the utility model provides a distance transfer device and a bottle blowing machine, mechanical arms and distance separation mechanisms are arranged above and below a transfer channel, so that the mechanical arms and the distance separation mechanisms can apply forces to the bottle blanks by using different parts of the bottle blanks, the bottle blanks can be smoothly handed over and transported between the distance separation mechanisms and the mechanical arms, the distance separation mechanisms and the transfer mechanisms can accurately perform distance separation and transfer operations, the bottle blanks are prevented from falling off, and the use experience is improved.

[0004] The utility model realizes the following mode: a distance transfer device comprises a support, a linear transfer channel arranged on the support, mechanical arms arranged along the direction of the transfer channel, and distance separation mechanisms matched with the transfer channel, the distance separation mechanisms and the mechanical arms are arranged below and above the transfer channel respectively, the distance separation mechanisms comprise a ring chain with a straight section and poking pieces equidistantly arranged on the ring chain, the straight section of the ring chain is arranged along an inlet section of the transfer channel, the poking pieces can be switched between a poking state and an avoiding state, after bottle blanks received at the inlet of the transfer channel are pushed and separated by the poking pieces in the poking state, the bottle blanks are grabbed and transported by the mechanical arms and the poking pieces along the way are pushed to the avoiding state. Mechanical arms and distance separation mechanisms are arranged above and below the transfer channel, so that the mechanical arms and the distance separation mechanisms can apply forces to the bottle blanks by using different parts of the bottle blanks, the mechanical arms grab and transport the bottle blanks at the mouth of the bottle blank, the distance separation mechanisms apply pushing forces to the section of the bottle blank close to the mouth, the bottle blanks can be smoothly handed over and transported between the distance separation mechanisms and the mechanical arms, the distance separation mechanisms and the transfer mechanisms can accurately perform distance separation and transfer operations, the bottle blanks are prevented from falling off, and the use experience is improved.

[0005] As preferred, the dialing blank is rotatably connected to the endless chain by a resetting assembly, the resetting assembly comprises a main connecting piece, a secondary connecting piece separately arranged from the main connecting piece, and a tension spring bridged between the main connecting piece and the secondary connecting piece, the connecting end of the dialing blank is connected to the endless chain by the main connecting piece, when the dialing blank switches from the dialing state to the avoiding state, the tension spring is pulled by the main connecting piece and accumulates the pre-tightening force to drive the dialing blank to reset to the dialing state. The secondary connecting piece and the main connecting piece are both installed at the adjacent chain holes of the endless chain, which not only facilitates the connection between the main connecting piece and the secondary connecting piece by the tension spring, but also drives the main connecting piece to rotate and drives the dialing blank to switch between the dialing state and the avoiding state by the tension spring.

[0006] As preferred, the endless chain comprises a plurality of chain links rotatably connected in a head-to-tail manner, the corresponding end parts of adjacent chain links are provided with chain holes axially aligned, the main connecting piece comprises a main rotating shaft with a limited rotating rod at the top and a deflection plate arranged at the bottom of the main rotating shaft, the connecting end of the dialing blank is provided with a through hole, the upper end of the through hole is provided with a limited rotating groove, the main rotating shaft is fixedly connected with the deflection plate after sequentially penetrating the dialing blank and the chain hole from top to bottom, so that the limited rotating rod is embedded in the limited rotating groove and is circumferentially linked with the deflection plate with the main rotating shaft as the center. The main rotating shaft is connected in series with the dialing blank, the endless chain and the deflection plate, which not only ensures that the dialing blank and the deflection plate are firmly installed on the endless chain, but also ensures that the deflection plate can be circumferentially synchronously rotated with the dialing blank through the main rotating shaft, and then the dialing blank is controlled to switch between the dialing state and the avoiding state by the tension spring.

[0007] As preferred, one end of the deflection plate is provided with a mounting hole for inserting and fixedly connecting the bottom end of the main rotating shaft, the other end is connected with the secondary connecting piece through the tension spring, so that the tension spring drives the dialing blank to reset to the dialing state through the deflection plate linked with the main rotating shaft. One end of the deflection plate is fixedly connected with the main rotating shaft, the other end is connected with the end of the tension spring through the mounting hole, the main rotating shaft is arranged in a staggered manner with the mounting hole, the distance between them is increased to improve the torque applied by the tension spring to the main rotating shaft, and it is ensured that the dialing blank can be reset to the dialing state under the driving of the tension spring.

[0008] As preferred, the lower end of the through hole is provided with an annular groove, a rotating ring is arranged in the annular groove and is sleeved on the main rotating shaft, so as to isolate the dialing blank and the endless chain. The rotating ring is arranged in the annular groove, and the main rotating shaft penetrates the rotating ring, which ensures that the dialing blank will not rub against the endless chain, and plays a protective role for the dialing blank.

[0009] As preferred, when the dialing blank is in the dialing state, the vertical projection of the dialing blank covers the transfer channel in the width direction, so that the dialing blank can push and move the bottle blank along the transfer channel. The dialing blank moves along the transfer channel under the driving of the endless chain and realizes the spacing by pushing the bottle blank, one dialing blank pushes one bottle blank, the distance between adjacent bottle blanks is the same as the distance between adjacent dialing blanks, so that the spacing distance of the bottle blank is controllable.

[0010] As preferred, the vertical projection of the pushing element is misaligned with the transfer channel when the pushing element is in the avoiding state, so that the bottle blank can be separated from the pushing element along the transfer channel under the driving of the mechanical arm. In the case that multiple bottle blanks are pushed apart on the transfer channel, the multiple bottle blanks can be taken away by the mechanical arm at one time. In order to ensure that the pushing element of the front bottle blank does not block the separation of the rear bottle blank from the transfer channel, the pushing element can be switched to the avoiding state under the pushing of the rear bottle blank, so as to ensure that the bottle blank can be separated from the transfer channel smoothly, and prevent the pushing element from blocking the transfer of the bottle blank.

[0011] As preferred, the auxiliary connecting piece comprises an auxiliary rotating shaft, which is inserted into the chain hole of the ring chain close to the main connecting piece, and the bottom of the auxiliary rotating shaft is fixedly connected with the end of the tension spring, so that the tension spring is stretched and pulled between the deflection plate and the auxiliary connecting piece. The auxiliary rotating shaft is inserted into the corresponding chain hole, which not only connects the adjacent chain links, but also pulls and positions the end of the tension spring.

[0012] As preferred, a limiting assembly is arranged between the pushing element and the ring chain, which comprises a limiting shaft arranged on the ring chain and a guide groove arranged on the bottom surface of the pushing element, and the guide groove is provided with a pushing position and an avoiding position for the end of the limiting shaft to abut against the limiting position when the pushing element is switched to the pushing state and the avoiding state, so that the pushing element swings along the preset direction and abuts against the limiting position. The limiting assembly comprises a separate limiting shaft and a guide groove, the limiting shaft is used for rotatingly connecting the adjacent chain links, and the end of the limiting shaft is matched with the guide groove to realize the guiding and limiting, so as to ensure that the pushing element is accurately switched between the pushing state and the avoiding state.

[0013] As preferred, the lower part of the limiting shaft is inserted into the chain hole of the ring chain on the side of the corresponding main connecting piece away from the auxiliary connecting piece, and the top of the limiting shaft is exposed from the ring chain and forms a limiting part inserted into the guide groove. The lower part of the limiting shaft is inserted into the corresponding chain hole, which is used for rotatingly connecting the adjacent chain links, and the top of the limiting shaft is exposed from the chain hole and forms a limiting part embedded into the guide groove, which is used for guiding and limiting the pushing element, so as to ensure that the pushing element can be switched between the pushing state and the avoiding state.

[0014] As preferred, at least two mechanical claws are arranged linearly and equidistantly on the mechanical arm, the mechanical arm can reciprocate between a grabbing station at the inlet section of the transfer channel and a placing station at the outlet section of the transfer channel, the inlet section of the transfer channel obtains a corresponding number of bottle blanks corresponding to the mechanical claws and is grabbed and transferred by the mechanical arm, the mechanical claws move to the placing station and push the bottle blank to switch from the pushing state to the avoiding state, and the bottle blank can swing back to the pushing state after avoiding the mechanical claws. A plurality of mechanical claws are arranged linearly on the mechanical arm, the distance between the mechanical claws is the same as the distance between the bottle blanks, the bottle blanks separated by the bottle blank can be grabbed by the mechanical claws at the same time, and then the bottle blanks grabbed by the mechanical claws are transported by the mechanical arm. When the bottle blank is grabbed and transported by the mechanical arm, the bottle blank is blocked by the pre-positioned bottle blank, the bottle blank is impacted and swung by the bottle blank to switch to the avoiding state, so that the bottle blank is smoothly transferred along the transfer channel.

[0015] As preferred, two parallel and separate supporting plates are arranged on the support, the spacing mechanism is arranged below the supporting plates, and the transfer channel is formed between the supporting plates. The mouth and body of the bottle blank are limited by a limiting ring extending radially outward, and the limiting ring can be lapped on the corresponding edge of the supporting plate. The supporting plate not only supports the bottle blank, but also limits the bottle blank, so that the bottle blank can move along the transfer channel.

[0016] As preferred, the ring chain is positioned by being pulled by two gears, and the gears receive driving force from the motor and drive the ring chain to rotate. The ring chain is sleeved on the two gears, can form a straight line segment on the gear, plays a spacing role on the bottle blank, and also plays a role of driving the ring chain to rotate by the gear, so that the ring gear continuously rotates and operates, and the continuously received bottle blank is continuously spaced and transported, thereby improving the working efficiency.

[0017] A bottle blowing machine comprises a rack, a heating device and a bottle blowing device arranged on the rack, characterized in that the spacing and transferring device is arranged on the rack, and the bottle blank output by the heating device is moved to the bottle blowing device through the spacing and transferring device, so that the bottle blank is blown into a bottle body. The spacing and transferring device is used for quickly and stably spacing and transferring the bottle blank, the maintenance cost is reduced by eliminating the transfer failure, the processing efficiency is effectively improved, and the use experience is improved.

[0018] The mechanical arm and the spacing mechanism can apply force to the bottle blank by using different parts of the bottle blank, the mechanical arm grabs and transfers the bottle blank at the mouth of the bottle blank, the spacing mechanism applies a pushing force to the section close to the mouth of the bottle blank, the bottle blank can be smoothly transferred between the spacing mechanism and the mechanical arm, the spacing and transferring operations of the bottle blank can be accurately realized, the bottle blank is prevented from falling off, and the use experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the distance-division transfer device;

[0020] Figure 2 is a side structural schematic view of the distance-division transfer device;

[0021] Figure 3 is another side structural schematic view of the distance-division transfer device;

[0022] Figure 4 is a bottom structural schematic view of the distance-division assembly;

[0023] Figure 5 is a side structural schematic view of the distance-division assembly;

[0024] Figure 6 is an assembly structural schematic view of the pusher;

[0025] Figure 7 is a structural schematic view of the pusher;

[0026] In the figure: 1, support; 2, mechanical arm; 3, ring chain; 4, pusher; 5, tension spring; 6, main rotating shaft; 7, deflection plate; 8, rotation-limiting groove; 9, rotation-limiting rod; 10, rotating ring; 11, transfer channel; 12, auxiliary rotating shaft; 13, limiting shaft; 14, guide groove; 15, mechanical claw; 16, supporting plate; 17, gear; 18, ring groove. DETAILED DESCRIPTION

[0027] The essential features of the present application will be further explained in conjunction with the accompanying drawings and specific embodiments.

[0028] Embodiment One

[0029] The present embodiment provides a distance-division transfer device.

[0030] As Figure 1 , 2The distance separating device shown in FIGS. 1-3 is composed of a support 1, a linear transfer channel 11 arranged on the support 1, a mechanical arm 2 arranged along the transfer channel 11, and a distance separating mechanism cooperating with the transfer channel 11. The distance separating mechanism and the mechanical arm 2 are arranged below and above the transfer channel 11, respectively. The distance separating mechanism includes a ring chain 3 with a straight section and a plurality of pusher members 4 equidistantly arranged on the ring chain 3. The straight section of the ring chain 3 is arranged along an inlet section of the transfer channel 11. The pusher members 4 can switch between a pushing state and an avoiding state. After the bottle preform received at the inlet of the transfer channel is pushed away by the pusher members 4 in the pushing state, the bottle preform is grabbed and transferred by the mechanical arm 2, and the pusher members 4 along the way are pushed to the avoiding state. The mechanical arm 2 and the distance separating mechanism are arranged above and below the transfer channel 11, respectively, so that the mechanical arm 2 and the distance separating mechanism can apply forces to the bottle preform at different positions of the bottle preform. The mechanical arm 2 grabs and transfers the bottle preform at the mouth of the bottle preform, and the distance separating mechanism applies a pushing force to the section of the bottle preform close to the mouth. This ensures that the bottle preform can be smoothly transferred between the distance separating mechanism and the mechanical arm 2, and ensures that the distance separating operation and the transfer operation can be accurately performed, preventing the bottle preform from falling off and improving the user experience.

[0031] In the present embodiment, the distance separating mechanism and the mechanical arm 2 are arranged below and above the transfer channel 11, respectively, so that the distance separating mechanism and the mechanical arm 2 can operate on different positions of the bottle preform, preventing mutual interference of the distance separating mechanism and the mechanical arm 2 due to operation on the same region of the bottle preform. This ensures that the distance separating mechanism and the mechanical arm 2 can independently operate on the bottle preform, and ensures that the bottle preform can be stably and accurately separated and transferred.

[0032] In the present embodiment, the ring chain 3 includes a plurality of chain links rotationally connected end to end. Corresponding end parts of adjacent chain links are provided with chain holes that can be axially aligned. The corresponding end parts of adjacent chain links are superimposed on each other and rotationally connected by a chain shaft that passes through the aligned chain holes, so that the ring chain 3 can be horizontally tensioned and driven to rotate by two gears 17. The ring chain 3 is positioned by being pulled by the two gears 17. The gears 17 receive driving force from a motor and drive the ring chain 3 to rotate. The pusher members 4 are equidistantly arranged on the ring chain 3. The reset assembly and the limiting assembly are configured with the pusher members 4 one by one, ensuring that the pusher members 4 can switch between the pushing state and the avoiding state. The mechanical arm 2 includes a plurality of mechanical claws 15 equidistantly arranged along a straight line. The straight line on which the mechanical claws 15 are arranged coincides with a straight line on which the transfer channel 11 is arranged, so that the mechanical claws 15 can grab the bottle preform separated by the distance separating assembly and convey the bottle preform along the transfer channel.

[0033] In use, the inlet section of the transfer channel 11 receives the bottle preforms from the heating device, and the rotating annular chain 3 pushes the bottle preforms along the transfer channel 11 by the preform pushing members 4 in the pushing state. As the inlet section continuously receives the bottle preforms, the rotating annular chain 3 timely pushes the bottle preforms along the transfer channel 11 by the continuously arranged preform pushing members 4. Since the preform pushing members 4 push the bottle preforms one by one, the bottle preforms on the transfer channel 11 move synchronously with the corresponding preform pushing members 4, so that the distance between adjacent bottle preforms is the same as the distance between adjacent preform pushing members 4, thereby achieving the distance separation operation of the bottle preforms. When the number of bottle preforms on the transfer channel 11 meets the number required for a single blow molding of the blow molding device, the mechanical arm 2 synchronously grabs the required number of bottle preforms by the mechanical claws 15 and transfers them to the outlet section of the transfer channel 11. In this process, the rear bottle preforms in the transfer channel 11 close to the inlet of the transfer channel 11 are blocked by the preform pushing members 4 pushing the front bottle preforms during the transfer. The preform pushing members 4 switch from the pushing state to the avoiding state due to the pushing of the rear bottle preforms (as shown in Figure 4 and 5 ), and accumulate the reset pre-tightening force by the tension spring 5. When the rear bottle preforms cross the preform pushing members, the preform pushing members 4 swing back to the original position due to the loss of external force under the action of the reset pre-tightening force, and rotate synchronously with the annular chain 3 to push the bottle preforms again for distance separation. The preform pushing members 4 that can switch between the pushing state and the avoiding state are arranged to achieve the purpose of synchronous transfer between the distance separation assembly and the mechanical arm 2. The distance between adjacent preform pushing members 4 and the distance between adjacent mechanical claws 15 are matched with the distance between adjacent mold cavities on the mold, so as to ensure that the bottle preforms after distance separation can be transferred to the corresponding mold cavities of the mold by the mechanical arm 2.

[0034] In the embodiment, the preform pushing member 4 is rotatably connected to the annular chain 3 by a reset assembly. The reset assembly includes a main connecting member, a secondary connecting member arranged apart from the main connecting member, and a tension spring 5 connected between the main connecting member and the secondary connecting member. The connecting end of the preform pushing member 4 is connected to the annular chain 3 by the main connecting member. When the preform pushing member 4 switches from the pushing state to the avoiding state, the tension spring 5 is pulled by the main connecting member and accumulates the pre-tightening force for driving the preform pushing member 4 to reset to the pushing state. The main connecting member includes a main shaft 6 with a top limiting rod 9 and a deflection plate 7 arranged at the bottom of the main shaft 6. The connecting end of the preform pushing member 4 is provided with a through hole, and the upper end of the through hole is provided with a limiting slot 8. The main shaft 6 passes through the preform pushing member 4 and the chain hole from top to bottom and is fixedly connected with the deflection plate 7, so that the limiting rod 9 is embedded in the limiting slot 8 and is connected with the deflection plate 7 in a circumferential linkage manner with the main shaft 6 as the center. The main connecting member is T-shaped (as shown in Figure 6 ), including a vertically arranged main shaft 6 and a limiting rod 9 arranged at the top end of the main shaft 6. A limiting assembly is arranged between the preform pushing member 4 and the annular chain 3. The limiting assembly includes a limiting shaft 13 arranged on the annular chain 3 and a guide slot 14 arranged on the bottom surface of the preform pushing member 4 (as shown in Figure 7The guide slot 14 is provided with a switching position for the limiting shaft 13 to abut and limit when the pushing element 4 switches to the pushing state and the avoiding state, so that the pushing element 4 swings along the preset direction and abuts and limits. The lower part of the limiting shaft 13 is inserted into the chain hole of the ring chain 3 on the side corresponding to the main connecting piece away from the auxiliary connecting piece, and the top of the limiting shaft 13 is exposed to the ring chain 3 and forms a limiting part inserted into the guide slot 14.

[0035] When installed, the bottom end of the main rotating shaft 6 passes through the perforation and the corresponding chain hole from top to bottom and is fixedly connected with the mounting hole of the deflection plate 7, so that the pushing element 4 is installed on the ring chain 3 and rotates synchronously with the deflection plate 7, and the end of the deflection plate 7 is connected with the auxiliary rotating shaft 12 through the tension spring 5.

[0036] After installation, the pushing element can be reset to the pushing state under the driving of the tension spring 5, and can avoid when switched to the avoiding state by contacting the bottle blank, so that the bottle blank is conveniently transferred by the mechanical arm 2. The top end of the limiting shaft 13 is inserted into the guide slot 14, which can abut and limit the limiting part of the limiting shaft 13 by the slot wall of the guide slot 14, and also guide the rotation of the pushing element 4, so as to ensure that the pushing element 4 can accurately switch between the avoiding state and the pushing state. The arc-shaped slot wall is arranged between the avoiding position and the pushing position of the guide slot 14, and when the pushing element 4 swings, the limiting part always slides with the slot wall of the guide slot 14, which effectively improves the guiding effect.

[0037] In the embodiment, when the pushing element 4 is in the pushing state, the two ends of the deflection plate 7 and the auxiliary connecting piece tend to be arranged on the same straight line, and the end of the tension spring 5 is connected to the end of the deflection plate 7 close to the auxiliary connecting piece, so as to drive the pushing element 4 to swing to the pushing state by shortening the stretching range of the tension spring 5. At this time, the vertical projection of the pushing element 4 covers the transfer channel 11, so that the pushing element 4 can push the bottle blank to move along the transfer channel 11 and complete the spacing operation. When the pushing element 4 is in the avoiding state, the line connecting the two ends of the deflection plate 7 is perpendicular to the pull ring, and the tension spring 5 is stretched to accumulate reset pre-tightening force, which can avoid the transferred bottle blank and also facilitates the resetting of the pushing element 4. At this time, the vertical projection of the pushing element 4 is arranged in a staggered manner with the transfer channel 11, so that the bottle blank can be separated from the pushing element 4 along the transfer channel 11 under the driving of the mechanical arm 2.

[0038] In the embodiment, one end of the deflection plate 7 is provided with a mounting hole for inserting and fixedly connecting the bottom end of the main rotating shaft 6, and the other end is connected with the auxiliary connecting piece through the tension spring 5, so that the tension spring 5 drives the pushing element 4 to reset to the pushing state through the deflection plate 7 linked with the main rotating shaft 6. The bottom end of the main rotating shaft 6 is inserted into the mounting hole and has a deflection prevention structure, which ensures that the deflection plate 7 is linked with the main rotating shaft 6 in the circumferential direction.

[0039] In the embodiment, the lower end of the perforation is provided with an annular groove 18, and a rotating ring 10 is arranged in the annular groove 18 and sleeved on the main rotating shaft 6 to isolate the pushing piece 4 and the annular chain 3. The outer diameter of the rotating ring 10 matches the diameter of the annular groove 18, so that the rotating ring 10 is firmly clamped in the annular groove 18. The bottom surface of the rotating ring 10 is smooth, which effectively reduces the friction between the pushing piece 4 and the annular chain 3 during rotation, thereby effectively reducing wear and tear and protecting the annular chain 3 and the pushing piece 4.

[0040] In the embodiment, the auxiliary connecting member includes an auxiliary rotating shaft 12 which is inserted into a chain hole of the annular chain 3 close to the main connecting member. The bottom of the auxiliary rotating shaft 12 is fixedly connected with the end of the tension spring 5, so that the tension spring 5 is stretched and pulled between the deflection plate 7 and the auxiliary connecting member. The auxiliary rotating shaft 12 is arranged in a chain hole adjacent to the main rotating shaft 6 of the annular chain 3. Preferably, the main rotating shaft 6 and the auxiliary rotating shaft 12 are spaced apart by one chain hole, which not only ensures that the two are arranged adjacent to each other, but also protects the tension spring 5 by increasing the distance between the two, thereby prolonging the service life of the tension spring 5.

[0041] In the embodiment, the mechanical arm 2 is provided with at least two mechanical claws 15 arranged linearly and equidistantly. The mechanical arm 2 can reciprocate between a grabbing station located at the inlet section of the transfer channel 11 and a placing station located at the outlet section of the transfer channel 11. The inlet section of the transfer channel 11 obtains a corresponding number of bottle blanks corresponding to the mechanical claws 15 and is grabbed and transferred by the mechanical arm 2. The mechanical claws 15 move to the placing station and push the pushing piece 4 to switch from the pushing state to the avoiding state. The pushing piece 4 can be reset and swing to the pushing state after avoiding the mechanical claws 15. The opening and closing of the mechanical claws 15 is controllable, which facilitates the grabbing and placing operation of the bottle blanks.

[0042] In the embodiment, the support 1 is provided with two parallel and separately arranged supporting plates 16. The spacing mechanism is arranged below the supporting plates 16, and the transfer channel 11 is formed between the supporting plates 16. The distance between the supporting plates 16 is greater than the diameter of the bottle blank body and less than the outer diameter of the limiting ring, so that the bottle blank can be lapped on the corresponding edges of the supporting plates 16 through the limiting ring.

[0043] In the embodiment, the side wall of the pushing piece 4 is provided with a circular-arc-shaped pushing groove. The groove wall of the pushing groove matches the profile of the side wall of the bottle blank body, so that the contact area is increased and the pushing force per unit area is reduced, thereby effectively preventing the bottle blank body from being deformed under stress when being pushed.

[0044] Embodiment Two

[0045] Compared with Embodiment One, the embodiment provides a bottle blowing machine.

[0046] A bottle blowing machine comprises a frame, a heating device arranged on the frame, a distance-transporting device and a bottle blowing device. The bottle preforms output by the heating device are moved to the bottle blowing device through the distance-transporting device, so that the bottle preforms are blown into bottle bodies. The distance-transporting device is used to quickly and stably perform distance-transporting operation on the bottle preforms, thereby reducing maintenance cost by eliminating transport failure, effectively improving processing efficiency and use experience.

[0047] The structure and effects of the distance-transporting device described in the embodiment are consistent with those of the first embodiment, and will not be described again.

Claims

1. A distance transfer device, comprising a support (1), a linear transfer channel (11) arranged on the support (1), a mechanical arm (2) arranged along the direction of the transfer channel (11), and a distance mechanism cooperating with the transfer channel (11), characterized in that, The distance separating mechanism and the mechanical arm (2) are arranged below and above the transfer channel (11) respectively, the distance separating mechanism comprises a ring chain (3) with straight sections and a plurality of pushers (4) equidistantly arranged on the ring chain (3), the straight sections of the ring chain (3) are arranged along the inlet section of the transfer channel (11), the pushers (4) can be switched between a pushing state and a avoiding state, after the bottle preform received at the inlet of the transfer channel is pushed and separated by the pusher (4) in the pushing state, the bottle preform is grabbed and transferred by the mechanical arm (2) and pushes the pusher (4) along the way to the avoiding state.

2. The distance transport device according to claim 1, wherein The pusher (4) is rotatably connected to the ring chain (3) through a reset assembly, the reset assembly comprises a main connecting piece, a secondary connecting piece arranged apart from the main connecting piece and a tension spring (5) bridged between the main connecting piece and the secondary connecting piece, the connecting end of the pusher (4) is connected to the ring chain (3) through the main connecting piece, when the pusher (4) is switched from the pushing state to the avoiding state, the tension spring (5) is pulled by the main connecting piece and accumulates the pre-tightening force to drive the pusher (4) to reset to the pushing state.

3. The distance transport device according to claim 2, wherein The ring chain (3) comprises a plurality of chain links rotatably connected end to end, corresponding end parts of adjacent chain links are provided with chain holes arranged in axial alignment, the main connecting piece comprises a main rotating shaft (6) with a rotation limiting rod (9) at the top and a deflection plate (7) arranged at the bottom of the main rotating shaft (6), the connecting end of the pusher (4) is provided with a through hole, the upper end of the through hole is provided with a rotation limiting groove (8), the main rotating shaft (6) is sequentially penetrated through the pusher (4) and the chain hole from top to bottom and is fixedly connected with the deflection plate (7) to make the rotation limiting rod (9) embedded in the rotation limiting groove (8) and circumferentially linked with the deflection plate (7) with the main rotating shaft (6) as the center.

4. The distance transport device according to claim 3, wherein One end of the deflection plate (7) is provided with a mounting hole for inserting and fixing the bottom end of the main rotating shaft (6), the other end is connected with the secondary connecting piece through the tension spring (5) to make the tension spring (5) drive the pusher (4) to reset to the pushing state through the deflection plate (7) linked with the main rotating shaft (6); or, the lower end of the through hole is provided with an annular groove (18), the annular groove (18) is provided with a rotating ring (10) sleeved on the main rotating shaft (6) to isolate the pusher (4) and the ring chain (3).

5. The distance transport device of claim 2, wherein, When the pusher (4) is in the pushing state, the vertical projection of the pusher (4) covers the transfer channel (11) to make the pusher (4) push the bottle preform to move along the transfer channel (11); or, when the pusher (4) is in the avoiding state, the vertical projection of the pusher (4) is arranged in dislocation with the transfer channel (11) to make the bottle preform move along the transfer channel (11) away from the pusher (4) under the drive of the mechanical arm (2).

6. The distance transport device of claim 2, wherein, The secondary connecting piece comprises a secondary rotating shaft (12), the secondary rotating shaft (12) is inserted into the chain hole of the ring chain (3) close to the main connecting piece, the bottom of the secondary rotating shaft (12) is fixedly connected with the end of the tension spring (5) to make the tension spring (5) be stretched and pulled between the deflection plate (7) and the secondary connecting piece.

7. A distance transport device according to any one of claims 1-6, characterized in that The spacing assembly is arranged between the shifting element (4) and the ring chain (3), and comprises a spacing shaft (13) arranged on the ring chain (3) and a guide groove (14) arranged on the bottom surface of the shifting element (4), the guide groove (14) is provided with a shifting position and an avoiding position for the end of the spacing shaft (13) to abut and limit when the shifting element (4) is switched to the shifting state and the avoiding state, so that the shifting element (4) swings along the preset direction and abuts and limits.

8. The distance transport device according to claim 7, wherein The lower part of the spacing shaft (13) is inserted into the chain hole of the ring chain (3) on the side of the main connecting piece away from the auxiliary connecting piece, and the top of the spacing shaft (13) is exposed to the ring chain (3) and forms a spacing part inserted into the guide groove (14).

9. A distance transport device according to any one of claims 1-6, characterized in that The mechanical arm (2) is provided with at least two mechanical claws (15) arranged linearly and equidistantly, the mechanical arm (2) can reciprocate between a grabbing position at the inlet section of the transfer channel (11) and a placing position away from the outlet section of the transfer channel (11), the inlet section of the transfer channel (11) obtains a number of bottle preforms corresponding to the number of the mechanical claws (15) and is grabbed and transferred by the mechanical arm (2), the mechanical claws (15) move to the placing position and drive the bottle preforms to move synchronously, the bottle preforms push and shift the shifting element (4) to switch from the shifting state to the avoiding state, and the shifting element (4) can swing to reset to the shifting state after avoiding the bottle preforms; alternatively, the support (1) is provided with two parallel and separately arranged supporting plates (16), the spacing mechanism is arranged below the supporting plates (16), and the transfer channel (11) is formed between the supporting plates (16); alternatively, the ring chain (3) is pulled and positioned by two gears (17), the gears (17) receive driving force from a motor and drive the ring chain (3) to rotate.

10. A bottle blowing machine comprising a machine frame and a heating device and a bottle blowing device arranged on the machine frame, characterized in that The rack is provided with the spacing transfer device of any one of claims 1-9, and the bottle preform output by the heating device is moved to the bottle blowing device through the spacing transfer device, so that the bottle preform is blown into a bottle body.

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