A mold positioning device for preform production

Abstract

This utility model discloses a mold positioning device for bottle preform production, relating to the field of bottle preform production. It includes an upper mold base and a lower mold base, which are detachably connected via a positioning assembly. The upper mold base is equipped with a plurality of upper molds, and the lower mold base has mounting slots of the same number as the upper molds. A plurality of lower molds matching the upper molds are detachably installed in the mounting slots. The lower mold base has a cavity, within which a plurality of bidirectional threaded rods are rotatably mounted and fixedly connected. A plurality of fixing plates are fixedly installed within the cavity, and the bidirectional threaded rods are rotatably connected to the fixing plates. Each bidirectional threaded rod is screwed with a pair of threaded blocks, and a clamping plate is fixedly installed on the threaded blocks. This effectively solves the technical problem in existing mold positioning devices where the lower molds are mostly fixed to the mold base by welding or other methods to maintain stability, making disassembly, replacement, and cleaning inconvenient.

Description

Technical Field

[0001] This utility model relates to the field of bottle preform production, specifically a mold positioning device for bottle preform production. Background Technology

[0002] PET bottles are made of PET plastic, a polymer produced by the combination of terephthalic acid and ethylene glycol. PET plastic is lightweight, highly transparent, impact-resistant, and not easily broken. In the production of PET bottles, molds are used for rapid production. During the production process, it is necessary to keep the mold and the lower mold fixed to avoid affecting the quality of the bottle preform.

[0003] However, in order to maintain stability, the lower mold in existing mold positioning devices is mostly fixed to the mold base by welding or other methods, which is not convenient for disassembly, replacement and cleaning. Therefore, there is an urgent need to develop a positioning device that can both fix the lower mold in the production process and facilitate disassembly and replacement of the lower mold. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mold positioning device for bottle preform production, which solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold positioning device for bottle preform production, comprising an upper mold base and a lower mold base, wherein the upper mold base and the lower mold base are detachably connected by a positioning component; a plurality of upper molds are mounted on the upper mold base, and the lower mold base has mounting slots of the same number as the upper molds, wherein a plurality of lower molds matching the upper molds are detachably mounted in the mounting slots;

[0006] The lower mold base has a cavity, and several bidirectional threaded rods are rotatably installed in the cavity. The bidirectional threaded rods are fixedly connected to each other. Several fixing plates are fixedly installed in the cavity. The bidirectional threaded rods are rotatably connected to the fixing plates. Each bidirectional threaded rod is screwed with a pair of threaded blocks, and a clamping plate is fixedly installed on the threaded blocks.

[0007] Preferably, an installation plate is fixedly installed inside the cavity, and several pairs of lifting rods are slidably installed on the installation plate. A push plate is fixedly installed on the top of each pair of lifting rods, and a drive assembly for driving the lifting rods to rise and fall is installed inside the cavity.

[0008] Preferably, the drive assembly includes an electric telescopic rod, which is fixedly installed on the side wall of the lower mold base. A movable plate is movably installed in the cavity. The telescopic end of the electric telescopic rod extends into the cavity and is fixedly connected to the movable plate. A lower wedge block is fixedly installed on the movable plate. An upper wedge block matching the lower wedge block is fixedly installed at the bottom of each pair of lifting rods.

[0009] Preferably, a rotating shaft is fixedly installed on one of the bidirectional threaded rods near the side wall of the lower mold base, and one end of the rotating shaft extends to the outside of the lower mold base and is equipped with a throttle handle.

[0010] Preferably, a fixing cap is fixedly installed on the throttle, the fixing cap is movably installed on the rotating shaft, and a second positioning groove matching the fixing cap is provided on the lower mold base.

[0011] Preferably, a pair of sliding grooves are provided on the rotating shaft, a slider is fixedly installed on the fixing cap, the slider is slidably connected to the sliding groove, a first positioning groove is provided on one side of the sliding groove, and a positioning block matching the first positioning groove is fixedly installed on the side wall of the slider.

[0012] Beneficial effects

[0013] This utility model provides a mold positioning device for bottle preform production, which has the following advantages:

[0014] 1. The device is equipped with an upper mold base and a lower mold base, which can be fitted together. An installation groove is provided to install the lower mold. The upper and lower molds cooperate to produce bottle preforms. A cavity is provided to install a bidirectional threaded rod. Several bidirectional threaded rods are installed and fixedly connected. The rotation of one bidirectional threaded rod can drive several bidirectional threaded rods to rotate simultaneously. A fixing plate is installed to make the rotation of the bidirectional threaded rods more stable. The rotation of the bidirectional threaded rods can drive several threaded blocks to move, thereby driving the clamping plate to move. The clamping plate can clamp and fix the lower mold, so that the lower mold remains stable during the production of bottle preforms, thus ensuring the quality of the produced bottle preforms.

[0015] 2. Several lifting rods can be slidably installed on the mounting plate. Push plates can be installed on the lifting rods. With the push plates installed, the lifting rods can lift and lower the push plates, which in turn lift the lifting plates to push the lower mold out of the lower mold base, making it easier to disassemble and replace the lower mold. Attached Figure Description

[0016] Figure 1 This is a front view of the internal structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0018] Figure 3 for Figure 1 Enlarged diagram of B in the diagram.

[0019] In the diagram: 1. Upper mold base; 2. Lower mold base; 3. Upper mold; 4. Mounting groove; 5. Lower mold; 6. Bidirectional threaded rod; 7. Mounting plate; 8. Threaded block; 9. Clamping plate; 10. Fixing plate; 11. Thruster; 12. Electric telescopic rod; 13. Moving plate; 14. Lower wedge block; 15. Upper wedge block; 16. Lifting rod; 17. Fixing cap; 18. Slide groove; 19. Sliding block; 20. First positioning groove; 21. Positioning block; 22. Second positioning groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Wherein, directional terms such as "upper" and "lower" mentioned herein are used in conjunction with... Figure 1 The orientation is used as a reference.

[0021] Please see Figures 1-3 This utility model provides a technical solution: a mold positioning device for bottle preform production, including an upper mold base 1 and a lower mold base 2, the upper mold base 1 and the lower mold base 2 are detachably connected by a positioning component; a plurality of upper molds 3 are installed on the upper mold base 1, and the lower mold base 2 is provided with the same number of mounting slots 4 as the upper molds 3, and a plurality of lower molds 5 that match the upper molds 3 are detachably installed in the mounting slots 4;

[0022] The lower mold base 2 has a cavity, and several bidirectional threaded rods 6 are rotatably installed in the cavity. The several bidirectional threaded rods 6 are fixedly connected to each other. Several fixing plates 10 are fixedly installed in the cavity. The several bidirectional threaded rods 6 are rotatably connected to the fixing plates 10. Each bidirectional threaded rod 6 is screwed with a pair of threaded blocks 8, and a clamping plate 9 is fixedly installed on the threaded blocks 8.

[0023] The upper mold base 1 and the lower mold base 2 are installed and can cooperate with each other. A mounting groove 4 is provided to install the lower mold 5. The upper mold 3 and the lower mold 5 cooperate to facilitate the production of bottle preforms. A cavity is provided to install bidirectional threaded rods 6. Several bidirectional threaded rods 6 are installed and fixedly connected. The rotation of one bidirectional threaded rod 6 can drive several bidirectional threaded rods 6 to rotate simultaneously. A fixing plate 10 is installed to make the rotation of the bidirectional threaded rods 6 more stable. The rotation of the bidirectional threaded rods 6 can drive several threaded blocks 8 to move, thereby driving the clamping plate 9 to move. The clamping plate 9 can clamp and fix the lower mold 5, so that the lower mold 5 remains stable during the production of bottle preforms, thus ensuring the quality of the produced bottle preforms.

[0024] Furthermore, an installation plate 7 is fixedly installed inside the cavity, and several pairs of lifting rods 16 are slidably installed on the installation plate 7. A push plate is fixedly installed on the top of each pair of lifting rods 16, and a drive assembly for driving the lifting rods 16 to rise and fall is installed inside the cavity.

[0025] By installing the mounting plate 7, several lifting rods 16 can be slidably installed on the mounting plate 7. By slidably installing several lifting rods 16, push plates can be installed on the lifting rods 16. By installing the push plates, the lifting rods 16 can lift and lower the push plates, and the lifting rods 16 can drive the lifting plates to rise, thereby pushing the lower mold 5 out of the lower mold base 2, which facilitates the disassembly of the lower mold 5 and makes it easier to replace the lower mold 5.

[0026] Furthermore, the drive assembly includes an electric telescopic rod 12, which is fixedly installed on the side wall of the lower mold base 2. A movable plate 13 is movably installed in the cavity. The telescopic end of the electric telescopic rod 12 extends into the cavity and is fixedly connected to the movable plate 13. A lower wedge block 14 is fixedly installed on the movable plate 13. An upper wedge block 15 matching the lower wedge block 14 is fixedly installed at the bottom of each pair of lifting rods 16.

[0027] The electric telescopic rod 12 is installed. When the electric telescopic rod 12 is started, the telescopic end of the electric telescopic rod 12 extends, which can drive the moving plate 13 to move, thereby driving the lower wedge block 14 to move. Through the cooperation of the lower wedge block 14 and the upper wedge block 15, when the moving plate 13 drives the lower wedge block 14 to move to the left, it can drive the upper wedge block 15 and the lifting rod 16 to rise.

[0028] Furthermore, a rotating shaft is fixedly installed on a bidirectional threaded rod 6 near the side wall of the lower mold base 2, with one end of the rotating shaft extending to the outside of the lower mold base 2 and equipped with a throttle handle 11.

[0029] The rotating handle 11 is installed, and rotating the rotating handle 11 can drive the rotating shaft to rotate. The rotating shaft can drive several bidirectional threaded rods 6 to rotate.

[0030] Furthermore, a fixing cap 17 is fixedly installed on the throttle 11, and the fixing cap 17 is movably installed on the rotating shaft. A second positioning groove 22 matching the fixing cap 17 is provided on the lower mold base 2.

[0031] With the fixed cap 17 installed, the fixed cap 17 can slide on the rotating shaft. With the second positioning groove 22 provided, after the fixed cap 17 moves into the positioning groove, the fixed cap 17 can be limited, thereby limiting the throttle 11. When it is necessary to rotate the throttle 11, the fixed cap 17 can be pulled out of the second positioning groove 22 to rotate the throttle 11.

[0032] Furthermore, a pair of sliding grooves are provided on the rotating shaft, and a slider 19 is fixedly installed on the fixed cap 17. The slider 19 is slidably connected to the sliding groove. A first positioning groove 20 is provided on one side of the sliding groove, and a positioning block 21 matching the first positioning groove 20 is fixedly installed on the side wall of the slider 19.

[0033] By providing a pair of sliding grooves, the slider 19 can slide within the sliding grooves. By providing a first positioning groove 20, the positioning block 21 matches the first positioning groove 20. When the positioning block 21 moves into the first positioning groove 20, the fixing cap 17 can be fixed on the rotating shaft so that the rotating handle 11 can be rotated to drive the fixing cap 17 to rotate, thereby driving the rotating shaft to rotate.

[0034] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0035] The working principle and usage process of this utility model are as follows: When in use, pull out the fixing cap 17, so that the positioning block 21 moves into the first positioning groove 20. Turn the handle to drive the fixing cap 17 and the rotating shaft to rotate, thereby driving several bidirectional threaded rods 6 to rotate, which in turn drives several pairs of clamping plates 9 to move, thereby clamping and fixing the lower mold 5. After production is completed, drive the clamping plates 9 to move again to release the lower mold 5. Then start the electric telescopic rod 12. The telescopic end of the electric telescopic rod 12 extends, which drives the moving plate 13 to move, which drives the lower wedge block 14 to move to the left, which drives several upper wedge blocks 15 to rise, which drives the lifting rod 16 to rise, thereby driving the push plate to rise, pushing the lower mold 5 out of the mounting groove 4. The lower mold 5 can be disassembled and replaced.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold positioning device for bottle preform production, characterized by, It includes an upper mold base (1) and a lower mold base (2), the upper mold base (1) and the lower mold base (2) being detachably connected by a positioning component; a plurality of upper molds (3) are installed on the upper mold base (1), and the lower mold base (2) has the same number of mounting slots (4) as the upper molds (3), and a plurality of lower molds (5) matching the upper molds (3) are detachably installed in the mounting slots (4); The lower mold base (2) has a cavity, and a plurality of bidirectional threaded rods (6) are rotatably installed in the cavity. The plurality of bidirectional threaded rods (6) are fixedly connected to each other. A plurality of fixing plates (10) are fixedly installed in the cavity. The plurality of bidirectional threaded rods (6) are rotatably connected to the fixing plates (10). Each bidirectional threaded rod (6) is screwed with a pair of threaded blocks (8), and a clamping plate (9) is fixedly installed on the threaded blocks (8).

2. The mold positioning device for bottle preform production according to claim 1, characterized by, An installation plate (7) is fixedly installed inside the cavity. Several pairs of lifting rods (16) are slidably installed on the installation plate (7). A push plate is fixedly installed on the top of each pair of lifting rods (16). A drive assembly for driving the lifting rods (16) to rise and fall is installed inside the cavity.

3. The mold positioning device for bottle preform production according to claim 2, characterized by, The drive assembly includes an electric telescopic rod (12), which is fixedly installed on the side wall of the lower mold base (2). A movable plate (13) is movably installed in the cavity. The telescopic end of the electric telescopic rod (12) extends into the cavity and is fixedly connected to the movable plate (13). A lower wedge block (14) is fixedly installed on the movable plate (13). An upper wedge block (15) matching the lower wedge block (14) is fixedly installed at the bottom of each pair of lifting rods (16).

4. The mold positioning device for bottle preform production according to claim 1, wherein A rotating shaft is fixedly installed on one of the two-way threaded rods (6) near the side wall of the lower mold base (2), and one end of the rotating shaft extends to the outside of the lower mold base (2) and is equipped with a throttle (11).

5. The mold positioning device for bottle preform production according to claim 4, wherein A fixing cap (17) is fixedly installed on the throttle (11). The fixing cap (17) is movably installed on the rotating shaft. A second positioning groove (22) matching the fixing cap (17) is opened on the lower mold base (2).

6. The mold positioning device for preform production according to claim 5, characterized in that, A pair of sliding grooves (18) are provided on the rotating shaft. A slider (19) is fixedly installed on the fixing cap (17). The slider (19) is slidably connected to the sliding groove (18). A first positioning groove (20) is provided on one side of the sliding groove (18). A positioning block (21) matching the first positioning groove (20) is fixedly installed on the side wall of the slider (19).

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