Blow molding machine die head structure capable of improving stiffness of film
By designing a blow molding machine die structure that can extrude three groups of plastic layers of different materials, the problem of existing soft films is solved, high stiffness and high-quality film production is achieved, and packaging efficiency is improved.
Patent Information
- Application Number
- CN202421033581.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The existing film is relatively soft and it is difficult to complete the packaging process on the blow molding machine, affecting the packaging efficiency.
Design a die head structure for a blow molding machine. Three groups of plastic layers of different materials are extruded through the die head. Multiple groups of feeding pipes and discharging molds are set up. Through specific material ratios and processing techniques, high stiffness is formed. film.
The stiffness and quality of the film are improved, its practicality is enhanced, and the packaging process can be completed more efficiently.
Smart Images
Figure CN222372287U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blow molding machine accessory devices, in particular to a blow molding machine die head structure capable of improving film stiffness. Background Art
[0002] As we all know, blow molding machines are mainly used for the processing and manufacturing of plastics and are widely used in the manufacture of plastic products. Films are widely produced and used as fresh food preservation materials and traditional commodity packaging materials. Nowadays, films are generally soft and difficult to complete the packaging process on the machine, which seriously affects the packaging efficiency. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a blow molding machine die head structure which can extrude three groups of plastic layers of different materials through a die head, thereby improving the stiffness and quality of the film, thereby enhancing practicality.
[0004] The utility model discloses a blow molding machine die head structure capable of improving the stiffness of a film, comprising a die head, a first discharge die, a second discharge die and a third discharge die, a cover plate assembly is arranged at the top of the die head, two groups of first feed pipes, two groups of second feed pipes and a third feed pipe are arranged on the cover plate assembly, a first mounting groove is arranged at the top of the die head, the first mounting groove is connected to the first discharge die through a card-mounted sliding assembly, the first discharge die is connected to the second discharge die through the first mounting assembly, the second discharge die is connected to the third discharge die through the second mounting assembly, and a A first discharge trough, the first discharge trough and the third feed pipe are slidably mounted, a second discharge trough is arranged at the bottom end of the third discharge mold, the second discharge trough is connected with the first discharge trough, a second cover plate assembly is arranged at the bottom end of the first feed pipe, a first discharge circular trough and a second discharge circular trough are arranged at the bottom end of the first mounting groove, a plurality of first discharge holes and a plurality of second discharge holes are arranged at the top ends of the two groups of discharge circular troughs, discharge pipes are arranged at the top ends of the plurality of first discharge holes and the plurality of second discharge holes respectively, a first through discharge trough is arranged at the bottom end of the die head, and a dividing block connected by a connecting block is arranged in the first through discharge trough.
[0005] Preferably, the first cover plate assembly includes a first cover plate and three groups of first screws, three groups of first threaded holes are arranged at the top of the die head, three groups of first through holes are arranged at the top of the first cover plate, the three groups of first screws are threadedly connected with the first threaded holes through the first through holes, two groups of first through holes, two groups of second through holes and third through holes are arranged at the top of the first cover plate, the two groups of first through holes are respectively connected with the first feed pipe set, the two groups of second through holes are respectively connected with the second discharge pipe set, and the third through hole is connected with the third discharge pipe set.
[0006] Preferably, the second cover plate assembly includes a second cover plate and eight groups of second screws, the bottom ends of the first discharging mold and the second discharging mold are respectively provided with four groups of second threaded holes, the bottom end of the second cover plate is provided with eight groups of second through holes, the eight groups of second screws are respectively threadedly connected with the second threaded holes through the second through holes, the bottom end of the second cover plate is provided with multiple groups of first through discharge holes and multiple groups of second through discharge holes, the multiple groups of first through discharge holes and the multiple groups of second through discharge holes are respectively slidably fitted with the discharge pipe, the bottom end of the second cover plate is provided with a material distribution through groove, the material distribution block passes through the material distribution through groove and enters into the second discharge groove.
[0007] Preferably, the sliding clamping assembly includes four groups of clamping slide blocks, four groups of clamping slide grooves are arranged on the top of the installation groove, the outer wall of the first discharging mold is connected to the four groups of clamping slide blocks, and the four groups of clamping slide grooves are respectively slidably clamped with the clamping slide blocks.
[0008] Preferably, the first mounting assembly includes a first fixed ring, four groups of first clamping blocks and four groups of third screws, the inner end of the first discharging mold is connected to the first fixed ring, the top of the first fixed ring is provided with multiple groups of first through feed holes, the inner end of the first fixed ring is respectively connected to the four groups of first clamping blocks, the top of the second discharging mold is provided with four groups of first clamping grooves, the four groups of first clamping grooves are respectively clamped with the first clamping blocks, the tops of the four groups of first clamping blocks are respectively provided with four groups of third through holes, the tops of the four groups of first clamping grooves are provided with four groups of third threaded holes, and the four groups of third screws are respectively threadedly connected to the third threaded holes through the third through holes.
[0009] Preferably, the second mounting assembly includes a second fixed ring, four groups of second clamping blocks and four groups of fourth screws, the inner end of the second discharging mold is connected to the second fixed ring, the top of the second fixed ring is provided with multiple groups of second through feed holes, the inner end of the second fixed ring is provided with four groups of second clamping blocks, the top of the third discharging mold is provided with four groups of second clamping grooves, the four groups of second clamping blocks are respectively slidably clamped with the second clamping grooves, the tops of the four groups of second clamping blocks are provided with four groups of fourth through holes, the bottoms of the four groups of second clamping grooves are provided with four groups of fourth threaded holes, and the four groups of fourth screws are respectively threadedly connected with the third threaded holes through the fourth through holes.
[0010] Preferably, the three groups of first through holes, the eight groups of second through holes, the four groups of third through holes and the four groups of fourth through holes are all configured as countersunk holes.
[0011] Preferably, two groups of mounting blocks are further included, the left end and the right end of the die head are respectively connected to the mounting blocks, and the top ends of the two groups of mounting blocks are respectively provided with mounting through holes.
[0012] Compared with the prior art, the utility model has the following beneficial effects: first, the die head is assembled through a sliding clamping assembly, a first mounting assembly, a second mounting assembly, a first cover plate assembly and a second cover plate assembly, and then it is installed on a blow molding machine; then, two groups of first pipes, a second pipe and a third pipe are connected to the LDPE, HDPE and LLDPE hot melt discharge pipes respectively; then, a material ratio of 2:2:1 is set for material transportation; then, the materials respectively enter the extrusion grooves composed of three groups of discharge dies through the pipes, and are extruded outwardly toward the first circular discharge groove, the second circular discharge groove and the cylindrical discharge groove formed by the dividing block at the bottom of the die head; then, the subsequent blow molding expansion is carried out through the lower device on the blow molding equipment to form a packaging film, thereby improving the stiffness and quality of the film and enhancing its practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the connection structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the connection structure between the first discharging die and the first fixing ring of the utility model;
[0015] Figure 3 It is a schematic diagram of the enlarged structure of the A part of the utility model;
[0016] Figure 4 It is a schematic diagram of the enlarged structure of the B part of the utility model;
[0017] Figure 5 It is a schematic diagram of the C local enlarged structure of the utility model;
[0018] Markings in the accompanying drawings: 1. die head; 2. first discharge die; 3. second discharge die; 4. third discharge die; 5. first feed pipe; 6. second feed pipe; 7. third feed pipe; 8. discharge pipe; 9. dividing block; 10. first cover plate; 11. first threaded hole; 12. second cover plate; 13. second screw; 14. clamping slider; 15. first fixing ring; 16. first clamping block; 17. third screw; 18. second fixing ring; 19. second clamping block; 20. fourth screw; 21. mounting block. DETAILED DESCRIPTION
[0019] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0020] like Figures 1 to 5As shown, a blow molding machine die head structure capable of improving film stiffness of the utility model comprises a die head 1, a first discharge die 2, a second discharge die 3 and a third discharge die 4, a cover plate assembly is arranged at the top of the die head 1, two groups of first feed pipes 5, two groups of second feed pipes 6 and a third feed pipe 7 are arranged on the cover plate assembly, a first mounting groove is arranged at the top of the die head, the first mounting groove is connected to the first discharge die 2 through a card-mounted sliding assembly, the first discharge die 2 is connected to the second discharge die 3 through the first mounting assembly The second discharging die 3 is connected to the third discharging die 4 through the second mounting assembly. The top of the third discharging die 4 is provided with a first discharging trough, and the first discharging trough is slidably mounted with the third feeding pipe 7. The bottom of the third discharging die 4 is provided with a second discharging trough, and the second discharging trough is connected with the first discharging trough. The bottom of the first feeding pipe 5 is provided with a second cover plate 12 assembly. The bottom of the first mounting groove is provided with a first discharging circular groove and a second discharging circular groove. The tops of the two groups of discharging circular grooves are provided with multiple groups of first discharging holes and multiple A second discharge hole is formed in the plurality of groups, and discharge pipes 8 are respectively arranged at the top ends of the plurality of groups of first discharge holes and the plurality of groups of second discharge holes, a first through discharge trough is arranged at the bottom end of the die head 1, and a dividing block 9 connected by a connecting block is arranged in the first through discharge trough; firstly, the die head is assembled through a sliding clamping assembly, a first mounting assembly, a second mounting assembly, a first cover plate assembly and a second cover plate assembly, and then it is installed on a blow molding machine, and then the two groups of first pipes, the second pipes and the third pipes are respectively connected with the LDPE, HDPE and LLDPE hot melt discharge pipes, and then the material ratio of the discharge amount is set to 2:2:1 for material transportation, and then the materials respectively enter the extrusion groove composed of the three groups of discharge molds through the pipes, and are extruded outward to the first circular discharge trough, the second circular discharge trough and the cylindrical discharge trough formed by the dividing block at the bottom of the die head, and then the subsequent blow molding expansion is carried out through the lower device on the blow molding equipment to form a packaging film, thereby improving the stiffness and quality of the film, thereby enhancing practicality.
[0021] As a preferred embodiment of the above embodiment, the first cover plate assembly includes a first cover plate 10 and three groups of first screws. The top of the die head 1 is provided with three groups of first threaded holes 11, and the top of the first cover plate 10 is provided with three groups of first through holes. The three groups of first screws are threadedly connected with the first threaded holes 11 through the first through holes. The top of the first cover plate 10 is provided with two groups of first through holes, two groups of second through holes and third through holes. The two groups of first through holes are respectively fitted and connected with the first feed pipe 5, the two groups of second through holes are respectively fitted and connected with the second discharge pipe 8, and the third through hole is fitted and connected with the third discharge pipe 8; five groups of feed pipes can be inserted into the extrusion groove formed by the assembly of three groups of discharge molds through three groups of first threads and the first cover plate, so as to prevent the material from overflowing the die head, thereby enhancing practicality.
[0022] As a preferred embodiment of the above embodiment, the second cover plate assembly includes a second cover plate 12 and eight groups of second screws 13. The bottom ends of the first discharging mold 2 and the second discharging mold 3 are respectively provided with four groups of second threaded holes. The bottom end of the second cover plate 12 is provided with eight groups of second through holes. The eight groups of second screws 13 are respectively threadedly connected with the second threaded holes through the second through holes. The bottom end of the second cover plate 12 is provided with multiple groups of first through discharge holes and multiple groups of second through discharge holes. The multiple groups of first through discharge holes and the multiple groups of second through discharge holes are respectively slidably fitted with the discharge pipe 8. The bottom end of the second cover plate 12 is provided with a dividing through groove, and the dividing block 9 passes through the dividing through groove and enters the second discharging groove. The fixation of the three groups of discharging modules can be reinforced by the second cover plate and eight groups of screws, thereby enhancing practicality.
[0023] As a preferred embodiment of the above embodiment, the sliding card assembly includes four groups of card-mounted sliders 14, four groups of card-mounted slide grooves are arranged at the top of the installation groove, the outer wall of the first discharge mold 2 is connected with the four groups of card-mounted sliders 14, and the four groups of card-mounted slide grooves are respectively slidably carded with the card-mounted sliders 14; the first discharge mold can be slidably carded in the installation groove through the four groups of card-mounted sliders and the four groups of card-mounted slide grooves, thereby enhancing practicality.
[0024] As a preferred embodiment of the above embodiment, the first mounting assembly includes a first fixed ring 15, four groups of first clamping blocks 16 and four groups of third screws 17. The inner end of the first discharging mold 2 is connected to the first fixed ring 15. The top of the first fixed ring 15 is provided with multiple groups of first through-feed holes. The inner ends of the first fixed ring 15 are respectively connected to the four groups of first clamping blocks 16. The top of the second discharging mold 3 is provided with four groups of first clamping grooves. The four groups of first clamping grooves are respectively clamped with the first clamping blocks 16. The tops of the four groups of first clamping blocks 16 are respectively provided with four groups of third through-holes. The tops of the four groups of first clamping grooves are provided with four groups of third threaded holes. The four groups of third screws 17 are respectively threadedly connected with the third threaded holes through the third through-holes. The first discharging mold and the first fixed ring can be clamped with the second discharging mold through the four groups of first clamping blocks and the four groups of first clamping grooves, and then fixedly connected through the four groups of third screws, thereby enhancing practicality.
[0025] As a preferred embodiment of the above embodiment, the second mounting assembly includes a second fixed ring 18, four groups of second clamping blocks 19 and four groups of fourth screws 20. The inner end of the second discharge mold 3 is connected to the second fixed ring 18. The top of the second fixed ring 18 is provided with multiple groups of second through-feed holes. The inner end of the second fixed ring 18 is provided with four groups of second clamping blocks 19. The top of the third discharge mold 4 is provided with four groups of second clamping grooves. The four groups of second clamping blocks 19 are respectively slidably clamped with the second clamping grooves. The tops of the four groups of second clamping blocks 19 are provided with four groups of fourth through-holes. The bottoms of the four groups of second clamping grooves are provided with four groups of fourth threaded holes. The four groups of fourth screws 20 are respectively threadedly connected with the third threaded holes through the fourth through-holes. The second discharge mold and the second fixed ring can be clamped with the third discharge mold through four groups of second clamping blocks and four groups of second clamping grooves, and then fixedly connected through four groups of fourth screws, thereby enhancing practicality.
[0026] As a preferred embodiment of the above embodiment, the three groups of first through holes, eight groups of second through holes, four groups of third through holes and four groups of fourth through holes are all configured as countersunk holes; the countersunk holes can effectively hide the screws, thereby improving the sealing between the parts and enhancing practicality.
[0027] As a preferred embodiment of the above embodiment, two groups of mounting blocks 21 are further included, and the left end and the right end of the die head 1 are respectively connected to the mounting blocks 21, and the top ends of the two groups of mounting blocks 21 are respectively provided with mounting through holes; the two groups of mounting blocks can be installed on the blow molding machine through the mounting through holes on the two groups of mounting blocks, thereby enhancing practicality.
[0028] The utility model discloses a blow molding machine die head structure capable of improving the stiffness of a film, and its working principle is as follows: when working, firstly, four groups of first clamping blocks and four groups of first clamping grooves are used to clamp the first discharge mold and the first fixed ring with the second discharge mold, and then four groups of third screws are used to fix and connect them, and then four groups of second clamping blocks and four groups of second clamping grooves are used to clamp the second discharge mold and the second fixed ring with the third discharge mold, and then four groups of fourth screws are used to fix and connect them, and then the second cover plate and eight groups of screws are used to reinforce the fixation of the three groups of discharge modules, and then the first discharge mold is slidably clamped in the installation groove through four groups of clamping slide blocks and four groups of clamping slide grooves, and then the three groups of first threads and the first cover plate are used to fix and connect the first discharge mold and the second fixed ring with the third discharge mold. Insert five groups of feed pipes into the extrusion groove formed by the three groups of discharge dies to prevent the material from overflowing the die head, and then install the die head on the blow molding machine through two groups of mounting blocks, and then connect the two groups of first pipes, second pipes and third pipes with the LDPE, HDPE and LLDPE hot melt discharge pipes respectively, and then set the discharge ratio of 2:2:1 to transport the material, and then the material enters the extrusion groove composed of the three groups of discharge dies through the pipes, and is extruded outward to the first circular discharge groove, the second circular discharge groove and the cylindrical discharge groove formed by the dividing block at the bottom of the die head, and then is expanded by the lower device on the blow molding equipment to form a packaging film.
[0029] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
[0030] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A blow molding machine die head structure capable of improving film stiffness, characterized in that: The invention comprises a die head (1), a first discharge die (2), a second discharge die (3) and a third discharge die (4); a cover plate assembly is arranged at the top of the die head (1); two groups of first feed pipes (5), two groups of second feed pipes (6) and a third feed pipe (7) are arranged on the cover plate assembly; a first mounting groove is arranged at the top of the die head; the first mounting groove is connected to the first discharge die (2) via a clamping sliding assembly; the first discharge die (2) is connected to the second discharge die (3) via the first mounting assembly; the second discharge die (3) is connected to the third discharge die (4) via the second mounting assembly; the top of the third discharge die (4) is provided with a first A discharge trough, a first discharge trough and a third feed pipe (7) are slidably mounted, a second discharge trough is arranged at the bottom end of the third discharge mold (4), the second discharge trough is connected to the first discharge trough, a second cover plate (12) assembly is arranged at the bottom end of the first feed pipe (5), a first discharge circular groove and a second discharge circular groove are arranged at the bottom end of the first mounting groove, a plurality of first discharge holes and a plurality of second discharge holes are arranged at the top ends of the two groups of discharge circular grooves, discharge pipes (8) are arranged at the top ends of the plurality of first discharge holes and the plurality of second discharge holes, respectively, a first through discharge trough is arranged at the bottom end of the die head (1), and a dividing block (9) connected by a connecting block is arranged in the first through discharge trough.
2. A blow molding machine die head structure capable of improving film stiffness as claimed in claim 1, characterized in that: The first cover plate assembly comprises a first cover plate (10) and three groups of first screws. The top of the die head (1) is provided with three groups of first threaded holes (11). The top of the first cover plate (10) is provided with three groups of first through holes. The three groups of first screws are threadedly connected to the first threaded holes (11) through the first through holes. The top of the first cover plate (10) is provided with two groups of first through holes, two groups of second through holes and a third through hole. The two groups of first through holes are respectively connected to the first feed pipe (5), the two groups of second through holes are respectively connected to the second discharge pipe (8), and the third through hole is connected to the third discharge pipe (8).
3. A blow molding machine die head structure capable of improving film stiffness as claimed in claim 2, characterized in that: The second cover plate assembly comprises a second cover plate (12) and eight groups of second screws (13); the bottom ends of the first discharge mold (2) and the second discharge mold (3) are respectively provided with four groups of second threaded holes; the bottom end of the second cover plate (12) is provided with eight groups of second through holes; the eight groups of second screws (13) are respectively threadedly connected to the second threaded holes through the second through holes; the bottom end of the second cover plate (12) is provided with a plurality of groups of first through discharge holes and a plurality of groups of second through discharge holes; the plurality of groups of first through discharge holes and the plurality of groups of second through discharge holes are respectively slidably mounted on the discharge pipe (8); the bottom end of the second cover plate (12) is provided with a material distribution through groove; the material distribution block (9) passes through the material distribution through groove and enters into the second discharge groove.
4. A blow molding machine die head structure capable of improving film stiffness as claimed in claim 3, characterized in that: The sliding clamping assembly comprises four groups of clamping slide blocks (14), four groups of clamping slide grooves are arranged at the top of the installation groove, the outer wall of the first discharge mold (2) is connected to the four groups of clamping slide blocks (14), and the four groups of clamping slide grooves are respectively slidably clamped with the clamping slide blocks (14).
5. A blow molding machine die head structure capable of improving film stiffness as claimed in claim 4, characterized in that: The first installation component comprises a first fixed circular ring (15), four groups of first clamping blocks (16) and four groups of third screws (17); the inner end of the first discharge mold (2) is connected to the first fixed circular ring (15); the top of the first fixed circular ring (15) is provided with a plurality of first through-feed holes; the inner end of the first fixed circular ring (15) is respectively connected to the four groups of first clamping blocks (16); the top of the second discharge mold (3) is provided with four groups of first clamping grooves; the four groups of first clamping grooves are respectively clamped with the first clamping blocks (16); the tops of the four groups of first clamping blocks (16) are respectively provided with four groups of third through-holes; the tops of the four groups of first clamping grooves are provided with four groups of third threaded holes; the four groups of third screws (17) are respectively threadedly connected with the third threaded holes through the third through-holes.
6. A blow molding machine die head structure capable of improving film stiffness as claimed in claim 5, characterized in that: The second installation assembly comprises a second fixed ring (18), four groups of second clamping blocks (19) and four groups of fourth screws (20); the inner end of the second discharge mold (3) is connected to the second fixed ring (18); the top of the second fixed ring (18) is provided with a plurality of second through-feed holes; the inner end of the second fixed ring (18) is provided with four groups of second clamping blocks (19); the top of the third discharge mold (4) is provided with four groups of second clamping grooves; the four groups of second clamping blocks (19) are respectively slidably clamped with the second clamping grooves; the tops of the four groups of second clamping blocks (19) are provided with four groups of fourth through-holes; the bottoms of the four groups of second clamping grooves are provided with four groups of fourth threaded holes; the four groups of fourth screws (20) are respectively threadedly connected with the third threaded holes through the fourth through-holes.
7. A blow molding machine die head structure capable of improving film stiffness as claimed in claim 6, characterized in that: The three groups of first through holes, the eight groups of second through holes, the four groups of third through holes and the four groups of fourth through holes are all configured as countersunk holes.
8. A blow molding machine die head structure capable of improving film stiffness as claimed in claim 7, characterized in that: It also comprises two groups of mounting blocks (21), the left end and the right end of the die head (1) are respectively connected to the mounting blocks (21), and the top ends of the two groups of mounting blocks (21) are respectively provided with mounting through holes.