Aseptic packaging equipment and extrusion die head thereof

Abstract

The utility model discloses sterile packaging equipment and an extrusion die head thereof, and relates to the technical field of packaging equipment, original detachable connection of a pipe blank blowing seat and an inner core is changed into integrated connection, a plurality of upper through holes are formed in the newly optimized inner core, a pressing block is fixedly connected with the newly optimized inner core, and the pressing block is fixedly connected with the pipe blank blowing seat. A plurality of lower through holes are formed in the pressing block, a mounting seat is fixed between the newly optimized inner core and the pressing block, a plurality of guide sleeves are arranged on the mounting seat, and the two ends of all the guide sleeves are communicated and penetrate through all the upper through holes and all the lower through holes in a one-to-one correspondence mode so that filling pipes can selectively penetrate through the guide sleeves. The extrusion die head disclosed by the utility model can be compatible with filling pipes with different numbers and intervals, the product specification can be replaced only by changing the number and the interval of the filling pipes, the pipe blank blowing pipe does not need to be disassembled, assembled and replaced, the invalid time is shortened, the time and the labor are saved, the continuous production interval is effectively shortened, and the production efficiency is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to an aseptic packaging equipment and an extrusion die head thereof. Background Art

[0002] BFS (Blow-Fill-Seal) equipment is an aseptic packaging equipment that integrates the three functions of bottle blowing, filling and sealing. This equipment can complete the three operations of bottle blowing, filling and sealing in a sterile state, which can effectively reduce human pollution, environmental pollution and material pollution, meet the requirements of aseptic production process, and is suitable for liquid filling products in the pharmaceutical, chemical and food industries using plastic containers for aseptic packaging.

[0003] The extruder is one of the important components of the bottle blowing mechanism of the BFS equipment, and the extrusion die head is the core component of the extruder. It has a great influence on the mechanical properties and appearance quality of the product, the uniformity between batches, the production efficiency and economy of the molding process. Therefore, it is particularly necessary to optimize the structure of the extrusion die head.

[0004] The existing extrusion die head has a detachable tube blowing seat that can be installed in the inner core, and the filling tube is installed in the tube blowing seat. In the actual production process, the extruder may need to continuously produce multiple products of different types and specifications, and the number and spacing of the filling tubes need to be adjusted according to the type and specification of the product. When adjusting the filling tube, it is necessary to disassemble the tube blowing seat and the inner core, take out the previously used tube blowing seat, and then put the new tube blowing seat into the inner core to meet the number and spacing requirements of the new filling tubes, and ensure that the tube blowing seat effectively fixes multiple filling tubes. The entire replacement process involves a large number of disassembled parts, and the replacement process is cumbersome, which takes up a long period of invalid time, is time-consuming and labor-intensive, and affects production continuity, thereby affecting production efficiency. Utility Model Content

[0005] The utility model aims to provide an aseptic packaging device and an extrusion die head thereof, which can be compatible with filling tubes of different numbers and spacings without replacing the tube blank blowing seat, thereby solving the technical problem that the extrusion die head affects production efficiency due to frequent disassembly and assembly of the tube blank blowing tube.

[0006] To achieve the above object, the utility model provides an extrusion die head of a sterile packaging device, comprising:

[0007] The inner core is fixedly arranged and is provided with a plurality of upper through holes;

[0008] A pressing block, the pressing block is fixedly connected to the inner core, and the pressing block is provided with a plurality of lower through holes;

[0009] The mounting seat is fixed between the inner core and the pressing block. A plurality of guide sleeves are fixed in the mounting seat. Both ends of all the guide sleeves are connected and penetrated with all the upper through holes and all the lower through holes in a one-to-one correspondence so as to allow the filling tube to selectively pass through.

[0010] Preferably, the mounting seat is provided with a plurality of mounting holes, and the mounting holes are used to install the guide sleeve, and the guide sleeve is coaxially connected with the upper through hole and the lower through hole at both ends thereof; the inner side wall of the mounting hole is formed with a stepped boss, and the outer side surface of the guide sleeve is formed with a limiting step; when the guide sleeve is inserted into the mounting hole, the limiting step and the stepped boss are abutted against each other, and are used to limit the position of the guide sleeve along the thickness direction of the mounting seat so that the end face of the guide sleeve is flush with the end face of the mounting seat.

[0011] Preferably, the inner wall of the mounting hole is provided with a limiting plane, and the outer wall of the guide sleeve is provided with an abutting plane. When the guide sleeve is inserted into the mounting hole, the abutting plane abuts against the limiting plane to limit the position of the guide sleeve.

[0012] Preferably, a penetrating guide hole is formed in the center of the guide sleeve for the filling tube to pass through; a plurality of outward expansion grooves are formed on the inner side wall of the guide hole, and the outward expansion grooves extend in the radial direction of the guide hole away from the center line of the guide hole.

[0013] Preferably, the outwardly expanded grooves are in an arc shape, and all the outwardly expanded grooves are evenly distributed in a circular ring shape.

[0014] Preferably, the two sides of the pressing block are integrally formed with limiting blocks, and the ends of the inner core are formed with limiting grooves. When the pressing block is installed into the inner core, the limiting blocks abut against the limiting grooves, and the limiting blocks are detachably connected to the inner core via connecting bolts.

[0015] Preferably, the inner core is formed with a receiving groove for receiving the mounting seat and the pressing block, and the bottom of the receiving groove is formed with a positioning boss abutting against the mounting seat, and the positioning boss is used to limit the position of the mounting seat.

[0016] Preferably, it also includes:

[0017] The outer core is sleeved outside the inner core, and an extrusion gap is formed between the outer core and the inner core. The extrusion gap is a ring structure and is used to extrude the plastic melt into an ideal shape.

[0018] Preferably, a stop boss is integrally formed at one end of the inner core away from the pressing block, the stop boss abuts against a support boss provided at the end of the outer core, and the stop boss and the support boss are detachably connected via a connecting bolt.

[0019] The utility model also provides an aseptic packaging device, comprising the extrusion die head.

[0020] Compared with the background technology, the utility model changes the original detachable connection between the tube blank blowing seat and the inner core to an integrated connection, and opens a plurality of upper through holes on the newly optimized inner core, the pressing block is fixedly connected to the newly optimized inner core, the pressing block is provided with a plurality of lower through holes, and there is an inherent mounting seat between the newly optimized inner core and the pressing block, and the mounting seat is provided with a plurality of guide sleeves, and the two ends of all the guide sleeves are respectively connected and penetrated with all the upper through holes and all the lower through holes in a one-to-one correspondence, so as to allow the filling tube to selectively pass through. In other words, the extrusion die head of the utility model is compatible with filling tubes of different numbers and spacings. For example, when the number of filling tubes required is large and the spacing is small, the filling tubes can be inserted into all the guide sleeves; when the number of filling tubes required is small and the spacing is large, the filling tubes only need to be inserted into part of the guide sleeves. In this way, the utility model only needs to change the number and spacing of the filling tubes to complete the replacement of product specifications, without disassembling and replacing the tube blank blowing tube, shortening the invalid time, saving time and labor, effectively shortening the continuous production interval, and helping to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A cross-sectional view of an extrusion die head of an aseptic packaging device provided by an embodiment of the utility model;

[0023] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0024] Figure 3 for Figure 1 A partial enlarged view of B in the middle;

[0025] Figure 4 for Figure 1 A three-dimensional diagram of the middle pressure block;

[0026] Figure 5 for Figure 1 A perspective view of the middle mounting seat;

[0027] Figure 6 for Figure 1 A three-dimensional view of the middle guide sleeve;

[0028] Figure 7 for Figure 6 Top view of the .

[0029] The reference numerals are as follows:

[0030] Inner core 1, pressing block 2, mounting seat 3, guide sleeve 4, outer core 5 and extrusion gap 6;

[0031] An upper through hole 11, a positioning boss 12 and a stop boss 13;

[0032] Lower through hole 21 and limit block 22;

[0033] Mounting hole 31;

[0034] Stepped boss 311;

[0035] The limiting step 41, the abutting plane 42, the guide hole 43 and the outward expansion groove 44;

[0036] Support boss 51. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] The utility model embodiment discloses an extrusion die head of a sterile packaging device, as shown in the attached Figure 1 As shown, it includes an inner core 1, a pressing block 2 and a mounting seat 3, and the inner core 1 is fixedly arranged on the outer core 5. It should be noted that the inner core 1 of the utility model is formed by optimizing the original tube blank blowing seat and the inner core after being connected in one piece, which is completely different from the structure of the original inner core. In the utility model, the newly optimized inner core 1 is provided with a plurality of upper through holes 11, and the upper through holes 11 may be cylindrical holes, and all the upper through holes 11 are evenly distributed along the width direction of the inner core 1. The inner diameter of the upper through hole 11 can be set according to the outer diameter of the filling tube, and it is necessary to ensure that the filling tube can be inserted into the upper through hole 11. The number of upper through holes 11 can be set according to the number of filling tubes. In this specific embodiment, 30 upper through holes 11 are specifically provided on the inner core 1. Of course, the setting and distribution of the upper through holes 11 are not limited to this.

[0040] The newly optimized inner core 1 is fixedly connected to the pressing block 2, and the pressing block 2 is provided with a plurality of lower through holes 21. Figure 1 and 4As shown, the lower through holes 21 can be cylindrical holes, and all the lower through holes 21 are evenly distributed along the width direction of the pressing block 2. The inner diameter and the number of the lower through holes 21 are the same as those of the upper through holes 11. All the upper through holes 11 correspond to all the lower through holes 21 one by one and are coaxially connected.

[0041] The mounting seat 3 is fixed between the inner core 1 and the pressing block 2. A plurality of guide sleeves 4 are fixed in the mounting seat 3. Both ends of all the guide sleeves 4 are connected and penetrated with all the upper through holes 11 and all the lower through holes 21 in a one-to-one correspondence. In other words, both ends of each guide sleeve 4 are respectively provided with an upper through hole 11 and a lower through hole 21 which are coaxially connected, so that the filling tube passes through the upper through hole 11, the guide sleeve 4 and the lower through hole 21 in sequence from top to bottom.

[0042] The utility model changes the original detachable connection between the tube blank blowing seat and the inner core 1 into an integrated connection, and opens a plurality of upper through holes 11 on the newly optimized inner core 1, so that the extrusion die head can be compatible with filling tubes of different numbers and spacings. For example, when the number of filling tubes required is large and the spacing is small, the filling tubes can be inserted into all the guide sleeves 4; when the number of filling tubes required is small and the spacing is large, the filling tubes only need to be inserted into part of the guide sleeves 4. In this way, the utility model only needs to change the number and spacing of the filling tubes to complete the replacement of product specifications, without disassembling and replacing the tube blank blowing tube, shortening the invalid time, saving time and labor, effectively shortening the continuous production interval, and being conducive to improving production efficiency.

[0043] In this specific embodiment, the minimum product spacing is 12.6mm, and 30 ampoules are placed. The tube blank blowing structure composed of the inner core 1, the mounting seat 3 and the pressing block 2 needs to open 30 holes, and the spacing between two adjacent holes is 12.6mm. The 30 holes of the tube blank blowing structure are numbered. When the product specification is a filling volume of less than 5ml, a filling tube is placed in each of the 30 holes of the tube blank blowing structure, for a total of 30 filling tubes. When the product specification is a filling volume of 10~20mm, the bottle spacing is set to 25.2mm, and only the filling tubes in the holes numbered odd need to be removed. When the product specification is a filling volume of more than 20ml, the bottle spacing is set to 37.8mm, and only the filling tubes need to be installed in the holes numbered 2, 5, 8, 11, 14, 17, 20, 23, 26, and 29.

[0044] The mounting base 3 is provided with a plurality of mounting holes 31. Figure 1 and 5As shown, all the mounting holes 31 are cylindrical stepped holes, and all the mounting holes 31 are evenly distributed along the width direction of the mounting seat 3. A guide sleeve 4 is installed in each mounting hole 31, and each guide sleeve 4 is coaxially connected with the upper through hole 11 and the lower through hole 21 at both ends thereof, so as to allow the filling tube to pass through, so as to avoid interference with the inserted filling tube due to misalignment. A stepped boss 311 is formed on the inner side wall of the mounting hole 31, and a limiting step 41 is formed on the outer side surface of the guide sleeve 4. When the guide sleeve 4 is inserted into the mounting hole 31, the limiting step 41 abuts against the stepped boss 311, and is used to limit the position of the guide sleeve 4 along the thickness direction of the mounting seat 3, so that the end face of the guide sleeve 4 is flush with the end face of the mounting seat 3.

[0045] The inner side wall of the mounting hole 31 is provided with a limiting plane, and the outer side wall of the guide sleeve 4 is provided with an abutting plane 42. Figure 6 As shown, when the guide sleeve 4 is inserted into the mounting hole 31, the abutment plane 42 abuts against the limiting plane. Figure 1 and 3 As shown, the position of the guide sleeve 4 is limited to prevent the guide sleeve 4 from rotating relative to the mounting hole 31. Specifically, a limiting plane is symmetrically provided on two opposite sides of the inner wall of the mounting hole 31, and an abutting plane 42 is symmetrically provided on two opposite sides of the outer wall of the guide sleeve 4. Of course, the limiting method of the guide sleeve 4 is not limited to this. For example, a mutually matching anti-rotation protrusion and anti-rotation groove can be added between the opposite surfaces of the mounting hole 31 and the guide sleeve 4, and the purpose of the utility model can still be achieved.

[0046] The center of the guide sleeve 4 is formed with a through guide hole 43 for the filling tube to pass through. The inner side wall of the guide hole 43 is formed with a plurality of outward expansion grooves 44, such as the attached Figure 6 and 7 As shown, the outward expansion groove 44 extends in the radial direction of the guide hole 43 away from the center line of the guide hole 43. The outward expansion groove 44 can reduce the contact area between the guide hole 43 and the filling tube to a certain extent, thereby reducing the resistance between the guide hole 43 and the filling tube during the insertion of the filling tube, making it convenient to plug and unplug the filling tube. The outward expansion groove 44 can be specifically in the shape of an arc, and all the outward expansion grooves 44 are evenly distributed in a circular ring shape. A convex ridge is formed at the connection between the inner side wall of the guide hole 43 and the outward expansion groove 44, and the convex ridge can be provided with a chamfered corner, so that the guide hole 43 and the outward expansion groove 44 are smoothly connected to prevent the convex ridge from scratching the filling tube. Specifically, the inner side wall of the guide hole 43 is provided with four outward expansion grooves 44, and the four outward expansion grooves 44 are distributed in a cross shape. Of course, the structure, number and distribution method of the outward expansion grooves 44 are not limited to this.

[0047] Limiting blocks 22 are integrally formed on both sides of the pressing block 2, and limiting grooves are formed at the ends of the inner core 1. When the pressing block 2 is inserted into the inner core 1, the limiting blocks 22 abut against the limiting grooves to limit the position of the pressing block 2 in the inner core 1, ensuring that the inner core 1 reliably presses the mounting seat 3 into the inner core 1. The limiting blocks 22 are detachably connected to the inner core 1 via connecting bolts, so that the pressing block 2 is reliably connected to the inner core 1. It should also be noted that when the pressing block 2 is inserted into the inner core 1, the end face of the pressing block 2 is flush with the end face of the inner core 1. Of course, the connection method between the pressing block 2 and the inner core 1 is not limited to this.

[0048] An accommodating groove is formed in the inner core 1 for accommodating the mounting seat 3 and the pressing block 2. The sum of the thicknesses of the mounting seat 3 and the pressing block 2 is equal to the depth of the accommodating groove. A positioning boss 12 is formed at the bottom of the accommodating groove, and the positioning boss 12 abuts against the mounting seat 3 to limit the position of the mounting seat 3 and prevent the mounting seat 3 from loosening. Of course, the limiting method of the mounting seat 3 is not limited to this.

[0049] The extrusion die head also includes an outer core 5, which is sleeved outside the inner core 1, and an extrusion gap 6 is formed between the outer core 5 and the inner core 1. Figure 1 and 2 As shown, the extrusion gap 6 is an annular structure, and the extrusion gap 6 is used to extrude the plastic melt into an ideal shape. The tube blank blowing structure composed of the inner core 1, the mounting seat 3 and the pressing block 2 blows the plastic extruded from the extrusion gap 6 to form a product with an ideal shape.

[0050] A stop boss 13 is integrally formed at one end of the inner core 1 away from the pressing block 2, and the stop boss 13 abuts against the support boss 51 provided at the end of the outer core 5 to limit the position of the inner core 1. The stop boss 13 and the support boss 51 are detachably connected by connecting bolts to ensure that the inner core 1 and the outer core 5 are reliably connected. Of course, the connection method between the inner core 1 and the outer core 5 is not limited to this.

[0051] The utility model embodiment also discloses a sterile packaging device, comprising the above-mentioned extrusion die head, which has the same beneficial effects.

[0052] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0053] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An extrusion die head for aseptic packaging equipment, characterized in that: include: An inner core (1), the inner core (1) being fixedly arranged, and the inner core (1) being provided with a plurality of upper through holes (11); A pressing block (2), the pressing block (2) being fixedly connected to the inner core (1), the pressing block (2) being provided with a plurality of lower through holes (21); A mounting seat (3) is fixedly arranged between the inner core (1) and the pressing block (2), and a plurality of guide sleeves (4) are fixedly arranged in the mounting seat (3), and both ends of all the guide sleeves (4) are respectively connected and penetrated with all the upper through holes (11) and all the lower through holes (21) in a one-to-one correspondence so as to allow the filling tube to selectively pass through.

2. The extrusion die head of the aseptic packaging equipment according to claim 1, characterized in that: The mounting seat (3) is provided with a plurality of mounting holes (31), the mounting holes (31) being used to mount the guide sleeve (4), the guide sleeve (4) being coaxially connected with the upper through hole (11) and the lower through hole (21) at both ends thereof; a stepped boss (311) is formed on the inner side wall of the mounting hole (31), and a limiting step (41) is formed on the outer side surface of the guide sleeve (4); when the guide sleeve (4) is inserted into the mounting hole (31), the limiting step (41) abuts against the stepped boss (311), and is used to limit the position of the guide sleeve (4) along the thickness direction of the mounting seat (3) so that the end surface of the guide sleeve (4) is flush with the end surface of the mounting seat (3).

3. The extrusion die head of the aseptic packaging equipment according to claim 2, characterized in that: The inner side wall of the mounting hole (31) is provided with a limiting plane, and the outer side wall of the guide sleeve (4) is provided with an abutment plane (42); when the guide sleeve (4) is inserted into the mounting hole (31), the abutment plane (42) abuts against the limiting plane to limit the position of the guide sleeve (4).

4. The extrusion die head of the aseptic packaging equipment according to claim 2, characterized in that: A penetrating guide hole (43) is formed at the center of the guide sleeve (4), and the guide hole (43) is used for allowing a filling tube to pass through; a plurality of outward expansion grooves (44) are formed on the inner side wall of the guide hole (43), and the outward expansion grooves (44) extend in a radial direction of the guide hole (43) in a direction away from the center line of the guide hole (43).

5. The extrusion die head of the aseptic packaging equipment according to claim 4, characterized in that: The outwardly expanded grooves (44) are in an arc shape, and all of the outwardly expanded grooves (44) are evenly distributed in a circular ring shape.

6. The extrusion die head of the aseptic packaging equipment according to any one of claims 1 to 5, characterized in that: Limiting blocks (22) are integrally formed on both sides of the pressing block (2), and limiting grooves are formed at the ends of the inner core (1); when the pressing block (2) is inserted into the inner core (1), the limiting blocks (22) abut against the limiting grooves, and the limiting blocks (22) are detachably connected to the inner core (1) via connecting bolts.

7. The extrusion die head of the aseptic packaging equipment according to any one of claims 1 to 5, characterized in that: The inner core (1) is formed with a receiving groove for receiving the mounting seat (3) and the pressing block (2); a positioning boss (12) abutting against the mounting seat (3) is formed at the bottom of the receiving groove; the positioning boss (12) is used to define the position of the mounting seat (3).

8. The extrusion die head of the aseptic packaging equipment according to any one of claims 1 to 5, characterized in that: Also includes: An outer core (5), the outer core (5) being sleeved outside the inner core (1), an extrusion gap (6) being formed between the outer core (5) and the inner core (1), the extrusion gap (6) being an annular structure, and the extrusion gap (6) being used to extrude the plastic melt into a desired shape.

9. The extrusion die head of the aseptic packaging equipment according to claim 8, characterized in that: A stop boss (13) is integrally formed at one end of the inner core (1) away from the pressing block (2); the stop boss (13) abuts against a support boss (51) provided at the end of the outer core (5); and the stop boss (13) and the support boss (51) are detachably connected via a connecting bolt.

10. An aseptic packaging device, characterized in that: The extrusion die head comprises the extrusion die head according to any one of claims 1 to 9.

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