Blank inserting piece and crystallizer using same

Abstract

The utility model relates to a blank inserting piece and a crystallizer using the same. An existing blank inserting piece and a matched structure thereof are complex and poor in use experience. The blank inserting device comprises a blank inserting pipe, a blank inserting part capable of being inserted into a bottle blank opening is arranged at the bottom of the blank inserting pipe, a socketed pipe capable of axially and relatively lifting is sleeved outside the blank inserting pipe, a spring is arranged between the blank inserting pipe and the socketed pipe, and the blank inserting pipe can be driven by the spring to be switched from a blank removing station where the blank inserting part retracts into the socketed pipe to a blank inserting station where the blank inserting part is exposed out of the socketed pipe. And the blank inserting part is matched with the bottom of the sleeving pipe to clamp the blank opening. According to the blank opening clamping device, the socketed pipe and the blank inserting pipe which can vertically and relatively move are arranged, the blank inserting pipe can be switched between the blank removing station and the blank inserting station, it is ensured that a blank opening softened by heating can be reliably clamped, the effect of shaping the blank opening shrunk by cooling is achieved, the equipment structure is effectively simplified, the equipment cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of plastic processing, in particular to an insert blank and a crystallization machine using the same. Background Art

[0002] In order to improve the high temperature resistance of the preform mouth, the existing preform needs to be crystallized, and a crystallizer is usually used to crystallize the preform mouth of the preform. The crystallizer includes a frame and a conveying mechanism arranged on the frame, and the conveying mechanism includes a transmission chain and a preform inserting member arranged on the transmission chain. The transmission chain sequentially passes through the preform connection mechanism, the crystallization mechanism and the preform stripping mechanism. After the preform mouth of the bottle preform is obtained by the preform conveying member, it is conveyed to the heating device for crystallization operation, and the preform conveying member is detached in the preform stripping device. The existing preform conveying members are all pluggable core bodies, which are inserted into the preform mouth and drive the bottle preform to move synchronously. Since the preform mouth will be softened by heat during the crystallization treatment, the preform mouth will be detached from the core body due to softening and expansion, and when the preform mouth is cooled and crystallized, it will be tightened by the core body due to contraction. In addition, the preforms on the existing crystallizer are all transported with the preform mouth facing downward, so that the preform connection mechanism and the preform stripping mechanism need to be provided with a structure for flipping and inserting the bottle preform, which makes the insertion and extraction of the bottle preform complicated, increases the equipment cost, and also affects the production efficiency. Utility Model Content

[0003] In order to address the deficiencies in the prior art, the utility model provides an inserting piece and a crystallization machine using the same, wherein a sleeve tube and an inserting tube which are vertically relatively movable are provided, and the inserting tube can be switched between a removing station and an inserting station, which not only plays a role in clamping the bottle blanks and improving the clamping reliability, but also plays a role in driving the bottle blanks out of the work, thereby effectively simplifying the structure, reducing equipment costs, and improving production efficiency.

[0004] The utility model is realized in the following manner: a blank inserting part, including a blank inserting tube, a blank inserting part that can be inserted into the blank mouth of the bottle blank is provided at the bottom of the blank inserting tube, a sleeve tube that can be axially relatively lifted and lowered is disposed on the outer surface of the blank inserting tube, a spring is provided between the blank inserting tube and the sleeve tube, and the blank inserting tube can be driven by the spring to switch from a blank stripping station where the blank inserting part is retracted into the sleeve tube to a blank inserting station where the blank inserting part is exposed from the sleeve tube, so that the blank inserting part is inserted into the bottle blank and cooperates with the bottom of the sleeve tube to clamp the blank mouth. A sleeve tube and a blank inserting tube that can be relatively movable vertically are provided, and the blank inserting tube can be switched between the blank stripping station and the blank inserting station. When the blank inserting tube is switched to the blank inserting station, it cooperates with the sleeve tube to clamp the blank mouth of the bottle blank, ensuring that the blank mouth softened by heat can be reliably clamped, and plays a shaping role on the blank mouth that is cooled and shrunk. When the blank inserting tube is switched to the blank stripping station, the sleeve tube can be used to drive the bottle blank out of the blank inserting tube, effectively simplifying the equipment structure, reducing equipment costs, and improving production efficiency. The spring uses its own reset preload force to drive the blank inserting tube to return to the blank inserting station, ensuring that the blank inserting part can always reliably clamp the bottle blank under normal conditions. The blank inserting part drives the bottle blank to be separated by driving the sleeve tube to move, effectively simplifying the supporting structure.

[0005] Preferably, the outer side wall of the upper part of the inserting tube extends radially outward to form a transmission sheet, and the sleeve tube is provided with a slot that penetrates radially and through which the transmission sheet is placed and lifted, and the transmission sheet passes through the slot from the inside to the outside and is exposed, so that the bottom surface of the transmission sheet is exposed in the area of ​​the slot to form a supporting surface for supporting the inserting tube. The transmission sheet is fixedly connected and linked with the inserting tube and exposed to the sleeve tube through the slot, so that the exposed transmission sheet can receive external force and drive the inserting tube set in the sleeve tube to move or position, thereby realizing the switching between the inserting station and the stripping station, and then controlling the inserting piece to realize the operation of grabbing and stripping the bottle blank.

[0006] Preferably, a cover is provided at the top of the sleeve, and the top edge of the sleeve is recessed downward to form the slot, and the cover is screwed to the top of the sleeve and blocks the upper slot of the slot to limit the transmission piece from vertically escaping from the slot. The top edge of the sleeve is recessed downward to form a slot, and the slot has a top slot and a radial slot, which is convenient for the installation and exposure of the transmission piece. The cover is fixed at the upper end of the sleeve, which is used to block the top slot of the slot to prevent the transmission piece from vertically escaping, facilitate the transmission piece to be exposed through the radial slot, and also limit the spring to ensure that the top of the spring can be vertically linked with the sleeve through the cover.

[0007] Preferably, the middle portion of the bottom surface of the cover is extended downward to form a threaded ring, the top of the sleeve is screwed and locked to the threaded ring, and the threaded ring is screwed and locked to the upper end of the sleeve, which is convenient for processing and assembly and ensures connection reliability.

[0008] Preferably, the transmission sheet is arranged at the top edge of the insert tube, a lower stop ring is arranged in the bottom of the insert tube, the bottom end of the spring is inserted into the insert tube and contacts the lower stop ring, and the top end extends upward and contacts the bottom surface of the cover, so that the spring accumulates reset preload force through vertical compression when the sleeve tube wraps the insert part downward. The top of the insert tube is located in the sleeve tube, the spring is inserted in the insert tube and clamped between the lower stop ring and the middle of the bottom surface of the cover, which not only effectively shortens the axial length of the insert, but also ensures that the insert tube can switch from the stripping station to the inserting station.

[0009] Preferably, the transmission plate is arranged in the middle of the insert tube, a through hole is provided in the middle of the cover for the top of the insert tube to pass upward, the periphery of the cover extends radially outward to form an upper limit ring, and the spring is sleeved outside the upper part of the sleeve tube and is clamped and limited by the top surface of the transmission plate and the bottom surface of the upper limit ring. The top of the insert tube passes through the cover through the through hole, so that the upper end of the insert tube is exposed. The spring is sleeved on the outer side of the upper part of the sleeve tube and is clamped and positioned by the top surface of the transmission plate and the periphery of the bottom surface of the cover, ensuring that the insert tube can switch from the stripping station to the inserting station.

[0010] Preferably, a vertically penetrating tube cavity is provided in the inserting tube, so that the inserting piece can be used on a bottle blowing machine, and the stretching rod is inserted into the bottle blank through the tube cavity to complete the bottle body blowing operation.

[0011] Preferably, there are at least two transmission plates and they are equidistantly spaced along the periphery of the outer wall of the insert tube. By providing multiple transmission plates, it is ensured that the insert tube can be smoothly lifted and lowered in an axial vertical posture, thereby preventing wear between the insert tube and the sleeve tube.

[0012] Preferably, the bottom surface of the sleeve tube forms a pushing surface, and when the inserting tube switches to the blank stripping station, the preform is limited by the pushing surface and separated from the inserting tube. When the inserting tube moves to the blank stripping station with the preform, the blank mouth of the bottle preform will contact the pushing surface and be clamped and positioned, so that the inserting tube is separated from the blank mouth and the blank stripping operation is realized.

[0013] Preferably, a guide ring is sleeved in the middle of the sleeve tube, the top surface of the guide ring contacts the supporting surface of the transmission plate, and the middle part of the outer wall of the guide ring is provided with an annular groove that can be clamped with the preset station, so that the blank inserting tube can be overlapped on the preset station through the guide ring. The guide ring is sleeved outside the sleeve tube and contacts the bottom surface of the transmission plate, and the guide ring is clamped on the preset guide rail through the annular groove, so that the blank inserting tube can be overlapped on the guide ring through the transmission plate and vertically positioned, ensuring that the cover can drive the sleeve tube to move downward relative to the blank inserting tube when receiving a downward force, and then push the bottle blank downward to separate from the blank inserting tube through the pushing surface, so that the blank inserting tube is switched from the blank inserting station to the blank removing station.

[0014] Preferably, a clamping assembly is provided at the bottom of the sleeve tube, and the clamping assembly includes arc-shaped pressing sheets equidistantly arranged in the circumferential direction and a clamping spring that drives the arc-shaped pressing sheets to clamp tightly on the outer wall of the bottom of the sleeve tube. When the blank inserting tube is in the blank inserting station, the arc-shaped pressing sheets cooperate with the arc-shaped pressing sheets to form a clamping groove for clamping the blank opening. The arc-shaped pressing sheets are limited by the clamping spring so that the arc-shaped pressing sheets can move radially inward and cooperate with the bottom of the blank inserting tube to form an annular clamping groove for clamping the blank opening, ensuring that the bottle blank can be firmly clamped by the blank inserting component.

[0015] Preferably, the outer edge of the bottom surface of the arc-shaped pressing sheet is extended downward to form a clamping protrusion, and the clamping protrusion cooperates with the outer side wall of the insert tube to form the clamping groove. The clamping protrusion is located outside the pushing surface, which not only provides space for forming the clamping groove, but also reduces the contact area with the outer side wall of the billet mouth to ensure that the billet mouth is evenly heated, thereby improving the crystallization effect.

[0016] Preferably, a limiting strip is provided on the inner side wall of the arc-shaped pressing sheet, and a limiting groove for the limiting strip to be clamped is provided on the bottom outer side wall of the sleeve, so that the arc-shaped pressing sheet and the sleeve are vertically limited. The limiting strip is inserted into the limiting groove to play a role in vertically limiting the arc-shaped pressing sheet. The depth of the limiting strip inserted into the limiting groove is greater than the radial expansion distance of the arc-shaped pressing sheet when clamping the blank, ensuring that the arc-shaped pressing sheet can still achieve vertical positioning through the limiting strip and the limiting groove when clamping the blank.

[0017] A crystallization machine using the blank inserting piece comprises a frame and a conveying mechanism arranged on the frame, the conveying mechanism comprises a transmission chain and blank inserting pieces equidistantly arranged on the transmission chain, the transmission chain sequentially passes through a blank connection mechanism, a crystallization mechanism and a blank stripping mechanism, the bottle blank is suspended below the blank inserting piece at the blank connection mechanism with the blank mouth facing upward and is transported to the blank stripping mechanism after the blank mouth crystallization operation is completed at the crystallization mechanism, and the blank inserting piece is switched to the blank stripping station to realize the separation of the bottle blank. The conveying mechanism uses the blank inserting piece to transport the bottle blank, the blank inserting piece can not only use the blank inserting part and the arc-shaped pressing sheet to reliably clamp the blank mouth of the bottle blank to ensure that the bottle blank is reliably transported, but also use the clamping protrusion to contact the outer wall of the blank mouth to ensure that each area of ​​the blank mouth is evenly heated to improve the crystallization effect, and can use the pushing surface on the sleeve tube to drive the bottle blank downward from the blank inserting part when the blank inserting tube switches to the blank stripping station, effectively simplifying the bottle stripping mechanism, eliminating the structure of flipping the bottle blank in the original equipment, reducing the equipment cost, and improving the use experience.

[0018] The beneficial effects of the utility model are as follows: a sleeve tube and a blank insertion tube are provided which can be vertically relatively movable; the blank insertion tube can be switched between the blank stripping station and the blank insertion station; when the blank insertion tube is switched to the blank insertion station, it cooperates with the sleeve tube to clamp the blank mouth of the bottle blank, ensuring that the blank mouth softened by heat can be reliably clamped, and plays a role in shaping the blank mouth that shrinks due to cooling; when the blank insertion tube is switched to the blank stripping station, the sleeve tube can be used to drive the bottle blank to separate from the blank insertion tube, effectively simplifying the equipment structure, reducing equipment costs, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the insert blank described in Example 1;

[0020] Figure 2 It is a cross-sectional schematic diagram of the assembly structure of the blank inserting tube described in the first embodiment when it is in the blank inserting station;

[0021] Figure 3 It is a cross-sectional schematic diagram of the assembly structure of the stripping tube in the first embodiment when it is in the inserting station;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the insert blank described in Example 1;

[0023] Figure 5 This is a schematic diagram of the structure of the insert blank described in Example 2;

[0024] Figure 6 It is a cross-sectional schematic diagram of the assembly structure of the blank stripping tube in the second embodiment when it is in the blank insertion station;

[0025] Figure 7 This is a schematic diagram of the disassembled structure of the insert blank described in Example 2;

[0026] In the figure: 1, inserting tube, 2, inserting part, 3, sleeve tube, 4, spring, 5, transmission plate, 6, slot, 7, sealing cover, 8, lower limiting ring, 9, through hole, 10, pushing surface, 11, guide ring, 12, arc-shaped pressing piece, 13, retaining spring, 14, clamping protrusion, 15, limiting strip, 16, limiting groove, 17, upper limiting ring. DETAILED DESCRIPTION

[0027] The essential features of the present utility model are further described below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Embodiment 1:

[0029] This embodiment provides an insert blank.

[0030] like Figure 1 , 2 A blank insertion component as shown in 3 is composed of a blank insertion tube 1, wherein the bottom of the blank insertion tube 1 is provided with a blank insertion portion 2 which can be inserted into the mouth of the bottle blank, and the outer sleeve 3 is arranged on the outer sleeve of the blank insertion tube 1 which can be axially relatively lifted and lowered, and a spring 4 is provided between the blank insertion tube 1 and the sleeve 3. Driven by the spring 4, the blank insertion tube 1 can be switched from a blank removal station where the blank insertion portion 2 is retracted into the sleeve 3 to a blank insertion station where the blank insertion portion 2 is exposed from the sleeve 3, so that the blank insertion portion 2 is inserted into the bottle blank and cooperates with the bottom of the sleeve 3 to clamp the blank mouth. A sleeve tube 3 and a blank inserting tube 1 which can move vertically relative to each other are arranged. The blank inserting tube 1 can be switched between the blank stripping station and the blank inserting station. When the blank inserting tube 1 is switched to the blank inserting station, it cooperates with the sleeve tube 3 to clamp the blank mouth of the bottle blank, ensuring that the blank mouth softened by heat can be reliably clamped and plays a role in shaping the blank mouth that shrinks due to cooling. When the blank inserting tube 1 is switched to the blank stripping station, the sleeve tube 3 can be used to drive the bottle blank to separate from the blank inserting tube 1, which effectively simplifies the equipment structure, reduces equipment costs, and improves production efficiency.

[0031] In this embodiment, the outer wall of the upper part of the insert tube 1 is extended radially outward to form a transmission sheet 5, and the sleeve tube 3 is provided with a radially penetrating slot 6 through which the transmission sheet 5 is placed and lifted. The transmission sheet 5 passes through the slot 6 from the inside to the outside and is exposed, so that the bottom surface of the transmission sheet 5 is exposed in the area of ​​the slot 6 to form a supporting surface for supporting the insert tube 1. The top edge of the sleeve tube 3 is recessed downward to form the slot 6, and the slot 6 includes a top slot open upward and a radial slot radially penetrating along the sleeve tube 3. When installing, Figure 4 As shown, this is achieved through the following steps:

[0032] First, insert the spring 4 into the insert tube 1 from top to bottom, so that the bottom end of the spring 4 contacts the top surface of the lower stop ring 8, and the top end of the spring 4 is exposed at the upper port of the insert tube 1;

[0033] Afterwards, the insert tube 1 is inserted into the sleeve tube 3 from top to bottom, and the transmission piece 5 located at the top edge of the insert tube 1 is inserted into the corresponding slot 6 through the top notch, and the transmission piece 5 overlaps the bottom wall of the slot 6 and plays a suspending role for the insert tube 1, and the top end of the spring 4 is exposed at the upper end of the sleeve tube 3;

[0034] Then, the cover 7 is covered on the upper end of the sleeve 3 from top to bottom and is screwed and locked by the threaded ring. The spring 4 is squeezed by the cover 7 and compressed between the lower limit ring 8 and the cover 7.

[0035] Finally, the clamping assembly is mounted on the bottom of the sleeve 3 .

[0036] After assembly is completed, the spring 4 drives the blank inserting tube 1 to be positioned at the blank inserting station through the lower limiting ring 8, and the outer edge of the transmission piece 5 is exposed outside the radial notch of the slot 6. When in use, the transmission piece 5 is fixedly connected to the transmission chain through the guide ring 11 sleeved outside the sleeve tube 3, and the guide ring 11 and the sleeve tube 3 can be lifted and lowered relative to each other, which not only ensures that the blank inserting part can move along the preset path and achieve the purpose of conveying the bottle blank, but also plays a role in vertically limiting the blank inserting tube 1, ensuring that the sleeve tube 3 can switch the blank inserting tube 1 between the blank inserting station and the blank stripping station by lifting and lowering.

[0037] In this embodiment, the transmission sheet 5 is arranged at the top edge of the insert tube 1, a vertically penetrating tube cavity is arranged in the insert tube 1, a lower limiting ring 8 is arranged at the bottom of the tube cavity of the insert tube 1, the bottom end of the spring 4 is inserted into the insert tube 1 and contacts the lower limiting ring 8, and the top end extends upward and contacts the bottom surface of the cover 7, so that the spring 4 accumulates the reset preload force through vertical compression when the sleeve tube 3 wraps the insert part 2 downward. Specifically:

[0038] When it is necessary to insert a preform, the inserting tube 1 is positioned vertically, and the inserting tube 1 is located at the inserting station exposed at the lower end of the sleeve tube 3, and the preform is sleeved from bottom to top on the inserting portion 2 at the bottom of the inserting tube 1 with the preform mouth facing upward. When it is sleeved into place, the inner wall of the preform mouth is fitted with the inserting portion 2, and the outer wall is fitted with the clamping protrusion 14, so that the preform mouth is radially clamped in the clamping groove.

[0039] When the preform needs to be removed, the inserting tube 1 is positioned vertically, and the cover 7 applies a downward force to the sleeve tube 3, which can not only accumulate the reset preload force by compressing the spring 4, but also push the preform opening of the preform downward through the pushing surface 10 provided on the bottom surface of the sleeve tube 3 and completely wrap the inserting part 2. When the pushing surface 10 moves below the inserting part 2, the preform opening can be driven to separate from the inserting part 2, so that the preform opening is downwardly separated from the inserting part 2 and the removal operation is realized. After the inserting part completes the removal operation, the sleeve tube 3 can be driven upward by the spring 4, so that the inserting tube 1 returns to the inserting station to prepare for the next preform acquisition.

[0040] In this embodiment, a cover 7 is provided on the top of the sleeve tube 3, and the top edge of the sleeve tube 3 is recessed downward to form the slot 6. The cover 7 is screwed to the top of the sleeve tube 3 and blocks the upper notch of the slot 6 to limit the transmission sheet 5 from vertically leaving the slot 6. The cover 7 and the sleeve tube 3 are separately arranged, which is convenient for opening the slot 6 and for the transmission sheet 5 to be inserted into the slot 6. The cover 7 can also be used to block the top notch of the slot 6 to limit the lifting range of the insert tube 1, ensuring that the insert tube 1 switches between the inserting station and the stripping station. The middle part of the bottom surface of the cover 7 extends downward to form a threaded ring, and the top of the sleeve tube 3 is screwed and locked with the threaded ring, which is convenient for processing and disassembly and assembly, and also ensures that the cover 7 is firmly connected to the sleeve tube 3.

[0041] In this embodiment, the radial length of the transmission plate 5 along the insert tube 1 is greater than the radial depth of the slot 6, ensuring that the outer edge of the transmission plate 5 passes through the slot 6 and is exposed outside the slot 6, making it convenient for the transmission plate 5 to fit, contact and position with the top surface of the guide ring 11.

[0042] In this embodiment, the outer diameter of the spring 4 is slightly smaller than the inner diameter of the insert tube 1, which not only facilitates the installation of the spring 4, but also effectively prevents the spring 4 from shaking in the tube cavity, ensuring that the spring 4 can drive the insert tube 1 to return to the inserting station.

[0043] In this embodiment, the transmission plates 5 are at least two and are equidistantly arranged along the outer peripheral edge of the insert tube 1. In a preferred embodiment, the transmission plates 5 are three and are arranged separately, which not only facilitates processing and assembly by limiting the number of transmission plates 5, but also improves the force stability by providing multiple transmission plates 5, ensuring that the insert tube 1 can achieve station switching in a preset posture.

[0044] In this embodiment, a guide ring 11 is sleeved in the middle of the sleeve tube 3, the top surface of the guide ring 11 is in contact with the supporting surface of the transmission plate 5, and the middle of the outer wall of the guide ring 11 is provided with an annular groove that can be engaged with the preset station, so that the insert tube 1 can be overlapped on the preset station through the guide ring 11. The guide ring 11 can slide along the preset guide rail through the annular groove, and can also be fixed with the transmission chain, or move along the guide rail by setting a guide wheel, which not only plays the role of guiding the movement of the insert part, but also plays the role of supporting the insert tube 1, which should be regarded as the specific implementation of this embodiment.

[0045] In this embodiment, a clamping assembly is provided at the bottom of the sleeve tube 3, and the clamping assembly includes arc-shaped pressing pieces 12 equidistantly arranged in the circumferential direction and a clamping spring 13 that drives the arc-shaped pressing pieces 12 to clamp tightly on the outer side wall of the bottom of the sleeve tube 3. When the inserting tube 1 is in the inserting station, it cooperates with the arc-shaped pressing piece 12 to form a clamping groove for clamping the blank opening. The arc-shaped pressing piece 12 is arranged around the outer side wall of the bottom of the sleeve tube 3 and is clamped and fixed by the clamping spring 13, ensuring that the arc-shaped pressing piece 12 can cooperate with the inserting part 2 to clamp the blank opening.

[0046] In this embodiment, the bottom surface of the sleeve tube 3 forms a pushing surface 10. When the inserting tube 1 switches to the blank removal station, the preform is limited by the pushing surface 10 and is separated from the inserting tube 1. The arc-shaped pressing piece 12 outside the pushing surface 10 extends downward to form a clamping protrusion 14. The clamping protrusion 14 cooperates with the outer wall of the inserting tube 1 to form the clamping groove. The pushing surface 10 can contact the top surface of the blank mouth when the sleeve tube 3 and the inserting tube 1 are relatively lifted and lowered, thereby pushing the blank mouth out of the inserting part 2. The clamping protrusion 14 is arranged on the bottom surface of each arc-shaped pressing piece 12 to ensure that the clamping spring 13 can press the blank mouth radially inward through the clamping protrusion 14.

[0047] In this embodiment, a limiting strip 15 is provided on the inner side wall of the arc-shaped pressing sheet 12, and a limiting groove 16 for the limiting strip 15 to be clamped is provided on the bottom outer side wall of the sleeve, so that the arc-shaped pressing sheet 12 and the sleeve are vertically limited. The limiting strip 15 is radially inserted into the limiting groove 16 to ensure that the vertical position between the arc-shaped pressing sheet 12 and the sleeve tube 3 is fixed, thereby ensuring that the arc-shaped pressing sheet 12 can cooperate with the blank insertion part 2 to clamp the blank mouth.

[0048] In this embodiment, the cover 7 can be an integral structure with gears formed on its periphery, or a split structure including a connecting portion fixedly connected to the upper end of the sleeve and a gear ring installed on the connecting portion, both of which should be regarded as specific implementations of this embodiment.

[0049] In this embodiment, the guide ring 11 can be an integral structure that can be movably mounted on the sleeve tube, or it can be a split structure, including a guide body, a copper sleeve arranged on the inner wall of the guide body, and a plane bearing arranged between the top surface of the guide body and the transmission plate. The plane bearing supports the transmission plate and guides the rotation of the insert. The copper sleeve can slide and rub against the outer wall of the sleeve tube to reduce wear and improve lubricity. Both should be regarded as specific implementation methods of this embodiment.

[0050] Embodiment 2:

[0051] Compared with the first embodiment, this embodiment provides another insert blank structure.

[0052] like Figure 5 , 6 As shown in 7, the transmission plate 5 is arranged in the middle of the insert tube 1, and a through hole 9 is opened in the middle of the cover 7 for the top of the insert tube 1 to pass upward. The periphery of the cover 7 extends radially outward to form an upper limit ring 17. The spring 4 is sleeved on the outside of the upper part of the sleeve tube 3 and is clamped and limited by the top surface of the transmission plate 5 and the bottom surface of the upper limit ring 17.

[0053] In this embodiment, the top of the inserting tube 1 is exposed above the sealing cap 7 through the through hole 9, so that the tube cavity is vertically through-set, which is a telescopic channel for the stretching rod of the bottle blowing machine, so that the inserting piece can be used for bottle preform transportation and bottle blowing on the bottle blowing machine. When in use, the upper end of the inserting tube 1 is exposed to the sealing cap 7, which is convenient for the stretching rod to insert and pull through, and the lower end is connected with the inner cavity of the bottle preform, which is convenient for the stretching rod to insert the bottle preform and stretch the bottle preform. The upper end of the inserting tube 1 is exposed, which is convenient for setting a shaft seal, ensuring that the stretching rod maintains a sealed connection after being inserted into the tube cavity, and ensuring that the bottle blowing operation proceeds smoothly.

[0054] The other structures and effects of the insert described in this embodiment are consistent with those in the first embodiment and will not be described in detail.

[0055] Embodiment three:

[0056] Compared with the first and second embodiments, this embodiment provides a crystallization machine.

[0057] The crystallizer includes a frame and a conveying mechanism arranged on the frame, the conveying mechanism includes a transmission chain and blank inserting parts equidistantly arranged on the transmission chain, the transmission chain sequentially passes through the blank connection mechanism, the crystallization mechanism and the blank stripping mechanism, and is characterized in that the bottle blank is suspended under the blank inserting part with the blank mouth facing upward at the blank connection mechanism and is transported to the blank stripping mechanism after the blank mouth crystallization operation is completed at the crystallization mechanism, and the blank inserting part is switched to the blank stripping station to realize the separation of the bottle blank. The blank inserting part is used to convey the bottle blank, and the blank mouth of the bottle blank is quenched by heating first and then cooling to improve the high temperature resistance of the blank mouth.

[0058] In this embodiment, the preform is suspended at the bottom of the insert with the preform opening facing upward, so that no turning mechanism is required when taking and placing the preform, which effectively simplifies the structure, reduces equipment costs, and improves production efficiency.

[0059] In this embodiment, the clamping protrusion 14 of the insert part abuts against the outer wall of the blank mouth and cooperates with the inserting part 2 to radially clamp and limit the blank mouth. It can ensure that all areas of the blank mouth are heated evenly by reducing the contact area between the clamping protrusion 14 and the outer wall of the blank mouth, thereby ensuring the crystallization effect. The inserting part 2 also shapes the inner wall of the blank mouth to prevent the blank mouth from shrinking and deforming during quenching and cooling operations.

[0060] The other structures and effects of the insert described in this embodiment are consistent with those of the first or second embodiment and will not be described in detail.

Claims

1. A blank inserting part, comprising a blank inserting tube (1), wherein the bottom of the blank inserting tube (1) is provided with a blank inserting portion (2) which can be inserted into the mouth of the bottle blank, characterized in that: The inserting tube (1) is provided with a sleeve tube (3) which can be axially raised and lowered relative to the inserting tube (1). A spring (4) is provided between the inserting tube (1) and the sleeve tube (3). Driven by the spring (4), the inserting tube (1) can be switched from a blank removal station where the inserting portion (2) is retracted into the sleeve tube (3) to a blank insertion station where the inserting portion (2) is exposed from the sleeve tube (3), so that the inserting portion (2) is inserted into the bottle blank and cooperates with the bottom of the sleeve tube (3) to clamp the blank mouth.

2. The insert blank according to claim 1, characterized in that: The outer wall of the upper part of the insert tube (1) is extended radially outward to form a transmission plate (5), and the sleeve tube (3) is provided with a radially penetrating slot (6) through which the transmission plate (5) is inserted and lifted, and the transmission plate (5) passes through the slot (6) from the inside to the outside and is exposed, so that the bottom surface of the transmission plate (5) is exposed in the area of ​​the slot (6) to form a supporting surface for supporting the insert tube (1).

3. The insert blank according to claim 2, characterized in that: A sealing cover (7) is provided on the top of the sleeve tube (3); the top edge of the sleeve tube (3) is recessed downward to form the slot (6); the sealing cover (7) is screwed to the top of the sleeve tube (3) and blocks the upper notch of the slot (6) to prevent the transmission plate (5) from vertically escaping from the slot (6).

4. The insert blank according to claim 3, characterized in that: The middle part of the bottom surface of the sealing cover (7) extends downward to form a threaded ring, and the top of the sleeve tube (3) is screwed and locked with the threaded ring.

5. The insert blank according to claim 3, characterized in that: The transmission plate (5) is arranged at the top edge of the insert tube (1), and a lower limiting ring (8) is arranged inside the bottom of the insert tube (1). The bottom end of the spring (4) is inserted into the insert tube (1) and contacts the lower limiting ring (8), and the top end extends upward and contacts the bottom surface of the cover (7), so that the spring (4) accumulates a reset preload force through vertical compression when the sleeve tube (3) wraps the insert part (2) downward; or, the transmission plate (5) is arranged in the middle of the insert tube (1), and a through hole (9) is provided in the middle of the cover (7) for the top of the insert tube (1) to pass upward, and the periphery of the cover (7) extends radially outward to form an upper limiting ring (17), and the spring (4) is sleeved outside the upper part of the sleeve tube (3) and is clamped and limited by the top surface of the transmission plate (5) and the bottom surface of the upper limiting ring (17).

6. The insert blank according to claim 2, characterized in that: The inserting tube (1) is provided with a vertically penetrating tube cavity; or, the transmission plates (5) are at least two plates and are equidistantly spaced along the periphery of the outer wall of the inserting tube (1); or, the bottom surface of the sleeve tube (3) forms a pushing surface (10), and when the inserting tube (1) is switched to the blank removal station, the bottle blank is limited by the pushing surface (10) and is separated from the inserting tube (1).

7. An insert blank according to any one of claims 2 to 6, characterized in that: A guide ring (11) is sleeved in the middle of the sleeve tube (3), the top surface of the guide ring (11) is in contact with the supporting surface of the transmission plate (5), and an annular groove that can be engaged with a preset work station is provided in the middle of the outer wall of the guide ring (11), so that the insert tube (1) can be overlapped on the preset work station through the guide ring (11).

8. An insert blank according to any one of claims 1 to 6, characterized in that: A clamping assembly is provided at the bottom of the sleeve tube (3), and the clamping assembly includes arc-shaped pressing sheets (12) equidistantly spaced in the circumferential direction and a retaining spring (13) for driving the arc-shaped pressing sheets (12) to be tightly clamped on the outer wall of the bottom of the sleeve tube (3). When the inserting tube (1) is in the inserting station, it cooperates with the arc-shaped pressing sheet (12) to form a clamping groove for clamping the blank mouth.

9. The insert blank according to claim 8, characterized in that: The outer edge of the bottom surface of the arc-shaped pressing sheet (12) extends downward to form a clamping protrusion (14), and the clamping protrusion (14) cooperates with the outer side wall of the insert tube (1) to form the clamping groove; or, a limiting strip (15) is provided on the inner side wall of the arc-shaped pressing sheet (12), and a limiting groove (16) for the limiting strip (15) to be clamped is provided on the bottom outer side wall of the sleeve tube (3), so that the arc-shaped pressing sheet (12) and the sleeve tube (3) are vertically limited.

10. A crystallization machine using the blank insert according to any one of claims 1 to 9, comprising a frame and a conveying mechanism arranged on the frame, the conveying mechanism comprising a transmission chain and blank inserts equidistantly arranged on the transmission chain, the transmission chain sequentially passing through a blank connection mechanism, a crystallization mechanism and a blank removal mechanism, characterized in that: The preform is suspended under the inserting piece with the preform mouth facing upward at the preform connection mechanism and is transported to the stripping mechanism after the crystallization operation of the preform mouth is completed at the crystallization mechanism. The inserting piece is switched to the stripping station to realize the separation of the preform.

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