Deep-ring-groove PET plastic bottle blank injection mold and using method

Abstract

The invention belongs to the technical field of injection mold equipment, and discloses a deep-ring-groove PET plastic bottle blank injection mold which comprises a shaping cavity, one side of the shaping cavity is movably connected with a pouring cavity, through cooperation of structures such as a circular block, an adaptive circular plate, a first motor and a sliding rod, the injection mold can be better demolded, and the injection mold is convenient to use. A first air cylinder is arranged to push an adaptive circular plate so that the adaptive circular plate can be attached to a circular block, then a first motor is started to drive the adaptive circular plate to rotate, the adaptive circular plate drives the circular block while rotating, and the circular block rotates in a shaping column plate through arrangement of a sliding rod; and when the circular block rotates, the shaping column can be driven to rotate, so that the mold subjected to injection molding and shaping can be effectively and rapidly demolded in a rotating mode, the phenomenon that the whole production progress is affected due to mold clamping is avoided, and the effect of rapid demolding is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of injection mold equipment, and in particular to a deep ring groove PET plastic bottle embryo injection mold and a use method thereof. Background Art

[0002] In the field of plastic packaging, PET plastic bottles are widely used because of their good transparency, impact resistance, lightness and other characteristics. PET plastic bottles are produced and used through a deep ring groove embryo injection mold.

[0003] The existing PET plastic bottle preform injection mold still has disadvantages when in use. When the existing bottle preform with a deep ring groove structure is injected, the bottle preform with a deep ring groove is prone to mold jamming during demolding, which not only affects production efficiency but may also damage the mold and the bottle preform. Therefore, it needs to be improved. Summary of the Invention

[0004] In order to solve the problem of PET plastic bottles being stuck and damaged as mentioned in the above background technology, the present invention provides a deep ring groove PET plastic bottle embryo injection mold.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a deep-groove PET plastic bottle embryo injection mold, comprising a molding cavity, one side of the molding cavity is movably connected to a pouring cavity, a molding column plate is clamped on the side of the molding cavity away from the pouring cavity, a molding column is fixedly connected to the side of the molding column plate close to the molding cavity, a pouring pipe head is fixedly connected to the inside of the pouring cavity, a circular block is fixedly connected to the side of the molding column close to the molding column plate, a side of the circular block away from the molding column is movably connected to an adapting circular plate, a first motor is provided on the side of the adapting circular plate away from the circular block, and the adapting circular plate is close to the molding cavity. A first cylinder is fixedly connected to one side near the first motor, a connecting block is fixedly connected to one side of the first cylinder near the adapting circular plate, a sliding rod is fixedly connected to one side of the circular block near the shaping column, a second cylinder is fixedly connected to the inside of the shaping cavity, a transverse tooth plate is fixedly connected to one side of the second cylinder, a first gear is meshed with one side of the transverse tooth plate, a second gear is fixedly connected to one side of the first gear, a vertical tooth plate is meshed with one side of the second gear, a side of the vertical tooth plate away from the second gear is slidably connected to the push block, and a connecting rod is fixedly connected to one side of the second cylinder near the transverse tooth plate.

[0006] Preferably, the side of the pouring cavity away from the shaping cavity is clamped with an upper mold fixing plate, the side of the shaping column plate away from the shaping cavity is clamped with a clamping plate, and the side of the clamping plate away from the shaping column plate is clamped with a lower mold fixing plate.

[0007] Preferably, the circular block is fixedly connected to a plurality of round rods on a side away from the shaping column, and the adapting circular plate is fixedly connected to a plurality of round rods on a side close to the circular block, and the plurality of round rods on one side of the circular block are meshed with the plurality of round rods on one side of the adapting circular plate.

[0008] Preferably, a sliding groove adapted to the sliding rod is provided inside the shaping column plate, and a circular cavity is provided inside the shaping column plate, the clamping plate and the lower mold fixing plate.

[0009] Preferably, the number of the push blocks is set to two, and the shape of the push blocks is adapted to the molding cavity.

[0010] Preferably, the side of the connecting rod away from the second cylinder is fixedly connected to the push block, and the number of the connecting rods is set to two.

[0011] Preferably, a clamping block is fixedly connected to the interior of the clamping plate, and a fixing plate is fixedly connected to the interior of the shaping column plate.

[0012] Preferably, a second motor is provided on one side of the fixing plate, and an output shaft end of the second motor is rotatably connected to a screw rod.

[0013] Preferably, a stop block is threadedly connected to the upper surface of the screw rod, a spring is fixedly connected to one side of the stop block, the number of the stop blocks and springs is set to two, and the shape of the stop block is adapted to the shape of the clamping block.

[0014] This application also proposes a method for using a deep ring groove PET plastic bottle embryo injection mold. The specific operating steps based on the deep ring groove PET plastic bottle embryo injection mold are as follows:

[0015] S1: Preparation: Before using the mold, carefully check whether all parts of the mold are intact and ensure that they can work normally; clean all parts of the mold and remove dust, oil and impurities on the surface to ensure the quality of the product during the injection molding process; install the mold on the injection molding machine and ensure that the connection between the mold and the injection molding machine is firm and reliable, and the positioning of the mold is accurate;

[0016] S2: Feeding operation: inject the molten PET plastic raw material into the casting cavity. During the injection molding process, the parameters such as injection pressure, speed and temperature must be controlled to ensure the quality of the bottle body;

[0017] S3: Injection molding: After the injection molding is completed, the pressure is maintained and cooled to allow the bottle body to be fully solidified and formed in the mold cavity. The pressure holding time and cooling time should be reasonably adjusted according to the specifications and material properties of the product. When the bottle body is cooled and formed, the upper and lower molds are opened and the formed bottle body is removed from the mold.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention facilitates better demoulding of the injection mold through the coordination of structures such as the circular block, the adapting circular plate, the first motor, and the sliding rod setting. The adapting circular plate is pushed by the setting of the first cylinder so that the adapting circular plate and the circular block are fitted together. Then, the first motor is started to drive the adapting circular plate to rotate. The adapting circular plate rotates and drives the circular block at the same time. The circular block rotates inside the shaping column plate through the setting of the sliding rod. The circular block can drive the shaping column to rotate at the same time, so that the mold after injection molding can be effectively and quickly demoulded by rotation, avoiding the phenomenon of mold jamming, which affects the overall production progress, thereby achieving the effect of rapid demoulding.

[0020] The present invention facilitates better assistance in removing the mold from the shaping column through the coordination of structures such as the second cylinder, the horizontal tooth plate, the second gear, and the vertical tooth plate. The horizontal tooth plate is pushed forward by the second cylinder, so that the first gear engaged with the horizontal tooth plate can drive the second gear to rotate. The second gear can drive the vertical tooth plate to move while rotating. The movement of the vertical tooth plate can drive the upper and lower push blocks to be effectively connected, so that when demolding, the upper and lower push blocks can synchronously demold the mold, avoiding the phenomenon that the upper and lower push blocks are not synchronous enough to demold the mold, thereby achieving the effect of assisting the push blocks to synchronously demold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the shaped column of the present invention;

[0024] Figure 4 This is an exploded view of the shaping column of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 This is an exploded view of the card plate of the present invention;

[0027] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0028] In the figure: 1. Molding cavity; 2. Casting cavity; 3. Molding column plate; 4. Clamping plate; 5. Lower mold fixing plate; 6. Upper mold fixing plate; 7. Molding column; 8. Casting pipe head; 9. Round block; 10. Adaptive round plate; 11. First motor; 12. First cylinder; 13. Connecting block; 14. Sliding rod; 15. Second cylinder; 16. Horizontal tooth plate; 17. First gear; 18. Second gear; 19. Vertical tooth plate; 20. Connecting rod; 21. Clamping block; 22. Fixing plate; 23. Second motor; 24. Screw; 25. Abutment block; 26. Spring; 27. Push block. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1 to 7 As shown, the present invention provides a deep ring groove PET plastic bottle embryo injection mold, including a molding cavity 1, one side of the molding cavity 1 is movably connected to the pouring cavity 2, the side of the molding cavity 1 away from the pouring cavity 2 is clamped with a molding column plate 3, the side of the molding column plate 3 close to the molding cavity 1 is fixedly connected to a molding column 7, the inside of the pouring cavity 2 is fixedly connected to a pouring pipe head 8, the molding column 7 is fixedly connected to a circular block 9 on the side close to the molding column plate 3, the side of the circular block 9 away from the molding column 7 is movably connected to an adapting circular plate 10, a first motor 11 is provided on the side of the adapting circular plate 10 away from the circular block 9, and a first motor 11 is fixedly connected to the side of the adapting circular plate 10 close to the first motor 11. The first cylinder 12, the first cylinder 12 is fixedly connected to a connecting block 13 on one side close to the adapting circular plate 10, the circular block 9 is fixedly connected to a sliding rod 14 on one side close to the shaping column 7, the inside of the shaping cavity 1 is fixedly connected to the second cylinder 15, one side of the second cylinder 15 is fixedly connected to a horizontal tooth plate 16, one side of the horizontal tooth plate 16 is meshed with a first gear 17, one side of the first gear 17 is fixedly connected to a second gear 18, one side of the second gear 18 is meshed with a vertical tooth plate 19, the side of the vertical tooth plate 19 away from the second gear 18 is slidably connected to the push block 27, and the side of the second cylinder 15 close to the horizontal tooth plate 16 is fixedly connected to a connecting rod 20.

[0031] The first cylinder 12 is provided to push the adapting circular plate 10 so that the adapting circular plate 10 is fitted with the circular block 9, and then the first motor 11 is started to drive the first motor 11 to drive the adapting circular plate 10 to rotate. The adapting circular plate 10 rotates and drives the circular block 9 at the same time, so that the circular block 9 rotates inside the shaping column plate 3 through the setting of the slide rod 14. The circular block 9 can drive the shaping column 7 to rotate while rotating, so that the mold after injection molding can be effectively and quickly demoulded by rotating. The second cylinder 15 is then provided to push the horizontal tooth plate 16 forward so that the first gear 17 meshing with the horizontal tooth plate 16 can drive the second gear 18 to rotate. The second gear 18 rotates and drives the vertical tooth plate 19 to move. The movement of the vertical tooth plate 19 can drive the upper and lower push blocks 27 to be effectively connected, so that when demoulding, the upper and lower push blocks 27 can play a role in synchronously demoulding the mold, avoiding the phenomenon that the upper and lower push blocks 27 are not synchronized enough to demould the mold.

[0032] like Figure 1 、 Figure 4 As shown, the side of the pouring cavity 2 away from the molding cavity 1 is clamped with the upper mold fixing plate 6, the side of the molding column plate 3 away from the molding cavity 1 is clamped with the clamping plate 4, the side of the clamping plate 4 away from the molding column plate 3 is clamped with the lower mold fixing plate 5, the side of the circular block 9 away from the molding column 7 is fixedly connected with multiple round rods, the side of the adapting circular plate 10 close to the circular block 9 is fixedly connected with multiple round rods, the multiple round rods on one side of the circular block 9 are meshed with the multiple round rods on one side of the adapting circular plate 10, the interior of the molding column plate 3 is provided with a sliding groove adapted to the sliding rod 14, and the interiors of the molding column plate 3, the clamping plate 4 and the lower mold fixing plate 5 are provided with circular cavities.

[0033] The above scheme is adopted: the upper mold fixing plate 6 is clamped on one side of the pouring cavity 2, so that the molding cavity 1 can be better connected, which is convenient for the subsequent molding and fixing of the molding cavity 1, and the clamping plate 4 on one side of the molding column plate 3 is convenient for the clamping of the molding column plate 3, which is convenient for the subsequent replacement of the molding column 7 with different models. The lower mold fixing plate 5 on one side of the clamping plate 4 has the same function as the upper mold fixing plate 6, which plays a better fixing role. The circular block 9 is fixedly connected to a plurality of round rods on the side away from the molding column 7, and the adapting circular plate 10 is fixedly connected to a plurality of round rods on the side close to the circular block 9. The setting of the plurality of round rods can effectively connect the circular block 9 and the adapting circular plate 10, so that the subsequent synchronous rotation can be carried out. The interior of the molding column plate 3 is provided with a slide groove adapted to the slide rod 14, which is convenient for the first motor 11 to rotate when the slide groove is set, so that the slide rod 14 can rotate inside, thereby driving the molding column 7 to rotate, so that the demoulding can be better carried out.

[0034] like Figure 3 、 Figure 4 As shown, the number of push blocks 27 is set to two, the shape of the push block 27 is adapted to the molding cavity 1, the side of the connecting rod 20 away from the second cylinder 15 is fixedly connected to the push block 27, the number of the connecting rod 20 is set to two, the interior of the clamping plate 4 is fixedly connected to the clamping block 21, and the interior of the molding column plate 3 is fixedly connected to the fixing plate 22.

[0035] The above scheme is adopted: the number of push blocks 27 is set to two, so that the push blocks 27 can better push and demould the mold, and the side of the connecting rod 20 away from the second cylinder 15 is fixedly connected to the push block 27, so that the push block 27 can effectively push and demould the mold through the setting of the second cylinder 15. The interior of the clamping plate 4 is fixedly connected with the clamping block 21, and the interior of the shaping column plate 3 is fixedly connected with the fixing plate 22. Through the setting of the clamping block 21 and the fixing plate 22, the clamping plate 4 and the shaping column plate 3 can be effectively fixed by clamping, and the clamping also facilitates the subsequent better replacement of the shaping column 7.

[0036] like Figure 6 、 Figure 7 As shown, a second motor 23 is provided on one side of the fixed plate 22, and the output shaft end of the second motor 23 is rotatably connected to a screw rod 24, and the upper surface of the screw rod 24 is threadedly connected to a stop block 25, and one side of the stop block 25 is fixedly connected to a spring 26. The number of the stop blocks 25 and the spring 26 is set to two, and the shape of the stop block 25 is adapted to the shape of the clamping block 21.

[0037] The above scheme is adopted: a second motor 23 is provided on one side of the fixed plate 22, and the setting of the second motor 23 can drive the screw rod 24 to rotate, and the rotation of the screw rod 24 can drive the threaded block 25, so that the blocks 25 on both sides can quickly fix the block 21, and a spring 26 is fixedly connected to one side of the block 25 to facilitate the subsequent resetting of the block 25. The block 21 and the block 25 can facilitate subsequent disassembly or better replacement of the shaping column 7, avoiding the inconvenience of subsequent maintenance through the fixed connection method. The number of blocks 25 and springs 26 is set to two, and the two methods can make the block 21 more firmly fixed and clamped. The shape of the block 25 is adapted to the shape of the block 21, which facilitates the fitting connection between the block 21 and the block 25.

[0038] This application also proposes a method for using a deep ring groove PET plastic bottle embryo injection mold. The specific operating steps based on the deep ring groove PET plastic bottle embryo injection mold are as follows:

[0039] S1: Preparation: Before using the mold, carefully check whether all parts of the mold are intact and ensure that they can work normally; clean all parts of the mold and remove dust, oil and impurities on the surface to ensure the quality of the product during the injection molding process; install the mold on the injection molding machine and ensure that the connection between the mold and the injection molding machine is firm and reliable, and the positioning of the mold is accurate;

[0040] S2: Feeding operation: inject the molten PET plastic raw material into the casting cavity. During the injection molding process, the parameters such as injection pressure, speed and temperature must be controlled to ensure the quality of the bottle body;

[0041] S3: Injection molding: After the injection molding is completed, the pressure is maintained and cooled to allow the bottle body to be fully solidified and formed in the mold cavity. The pressure holding time and cooling time should be reasonably adjusted according to the specifications and material properties of the product. When the bottle body is cooled and formed, the upper and lower molds are opened and the formed bottle body is removed from the mold.

[0042] The working principle and use process of the present invention:

[0043] First, the upper mold fixing plate 6 and the lower mold fixing plate 5 are connected to the pouring cavity 2 and the clamping plate 4 by means of a clamping connection. Then, the liquid to be poured is injected into the shaping cavity 1 through the pouring pipe head 8 in the pouring cavity 2. After the liquid is fixed and shaped, the setting of the first motor 11 is started so that the first motor 11 can drive the adapting circular plate 10 to rotate. The rotation of the adapting circular plate 10 can drive the circular block 9 to rotate synchronously. The rotation of the circular block 9 can drive the shaping column 7 so that the shaping column 7 can rotate and demould in the shaping mold. Then, the shaping column 7 is driven by the first motor 11. The second cylinder 15 is set to push the horizontal tooth plate 16 forward, so that the first gear 17 engaged with the horizontal tooth plate 16 can drive the second gear 18 on one side to rotate synchronously. The rotation of the second gear 18 can drive the vertical tooth plate 19 to move, so that the vertical tooth plate 19 can effectively connect the upper and lower push blocks 27, so that the second cylinder 15 can drive the tooth plate and the gear while also synchronously driving the push block 27 forward to push the mold after the molding is completed, so that the mold can be better removed from the molding column 7.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A deep groove PET plastic bottle embryo injection mold, comprising a molding cavity (1), characterized in that: One side of the shaping cavity (1) is movably connected to the pouring cavity (2); a shaping column plate (3) is clamped on the side of the shaping cavity (1) away from the pouring cavity (2); a shaping column plate (3) is fixedly connected to the side of the shaping column plate (3) close to the shaping cavity (1); a pouring pipe head (8) is fixedly connected inside the pouring cavity (2); a circular block (9) is fixedly connected to the side of the shaping column (7) close to the shaping column plate (3); a matching circular plate (10) is movably connected to the side of the matching circular plate (9) away from the shaping column (7); a first motor (11) is provided on the side of the matching circular plate (10) away from the circular block (9); a first cylinder (12) is fixedly connected to the side of the matching circular plate (10) close to the first motor (11); and the first cylinder (12) is fixedly connected to the side of the matching circular plate (10) close to the first motor (11). A connecting block (13) is fixedly connected to one side of the nearly adaptable circular plate (10); a sliding rod (14) is fixedly connected to one side of the circular block (9) close to the shaping column (7); a second cylinder (15) is fixedly connected to the interior of the shaping cavity (1); a transverse toothed plate (16) is fixedly connected to one side of the second cylinder (15); a first gear (17) is meshed with one side of the transverse toothed plate (16); a second gear (18) is fixedly connected to one side of the first gear (17); a vertical toothed plate (19) is meshed with one side of the second gear (18); a side of the vertical toothed plate (19) away from the second gear (18) is slidably connected to a push block (27); and a connecting rod (20) is fixedly connected to one side of the second cylinder (15) close to the transverse toothed plate (16).

2. The deep ring groove PET plastic bottle embryo injection mold according to claim 1, characterized in that: An upper mold fixing plate (6) is clamped on the side of the pouring cavity (2) away from the molding cavity (1), a clamping plate (4) is clamped on the side of the molding column plate (3) away from the molding cavity (1), and a lower mold fixing plate (5) is clamped on the side of the clamping plate (4) away from the molding column plate (3).

3. The deep ring groove PET plastic bottle embryo injection mold according to claim 1, characterized in that: A plurality of round rods are fixedly connected to the side of the circular block (9) away from the shaping column (7), and a plurality of round rods are fixedly connected to the side of the adapting circular plate (10) close to the circular block (9). The plurality of round rods on one side of the circular block (9) are meshed with the plurality of round rods on one side of the adapting circular plate (10).

4. The deep ring groove PET plastic bottle embryo injection mold according to claim 1, characterized in that: A sliding groove matched with the sliding rod (14) is provided inside the shaping column plate (3), and a circular cavity is provided inside the shaping column plate (3), the clamping plate (4) and the lower mold fixing plate (5).

5. The deep ring groove PET plastic bottle embryo injection mold according to claim 1, characterized in that: The number of the push blocks (27) is set to two, and the shape of the push blocks (27) is adapted to the molding cavity (1).

6. The deep ring groove PET plastic bottle embryo injection mold according to claim 1, characterized in that: The side of the connecting rod (20) away from the second cylinder (15) is fixedly connected to the push block (27), and the number of the connecting rods (20) is set to two.

7. The deep ring groove PET plastic bottle embryo injection mold according to claim 2, characterized in that: A clamping block (21) is fixedly connected inside the clamping plate (4), and a fixing plate (22) is fixedly connected inside the shaping column plate (3).

8. The deep ring groove PET plastic bottle embryo injection mold according to claim 7, characterized in that: A second motor (23) is disposed on one side of the fixing plate (22), and an output shaft end of the second motor (23) is rotatably connected to a screw rod (24).

9. The deep ring groove PET plastic bottle embryo injection mold according to claim 8, characterized in that: The upper surface of the screw rod (24) is threadedly connected with a stop block (25), one side of the stop block (25) is fixedly connected with a spring (26), the number of the stop block (25) and the spring (26) is set to two, and the shape of the stop block (25) is adapted to the shape of the clamping block (21).

10. A method for using a deep ring groove PET plastic bottle embryo injection mold, applied to a deep ring groove PET plastic bottle embryo injection mold as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Preparation: Before using the mold, carefully check whether the various parts of the mold are intact and ensure that they can work normally; Clean all parts of the mold and remove dust, oil and impurities on the surface to ensure the quality of the product during the injection molding process; install the mold on the injection molding machine to ensure that the connection between the mold and the injection molding machine is firm and reliable, and the positioning of the mold is accurate; S2: Feeding operation: inject the molten PET plastic raw material into the casting cavity. During the injection molding process, the parameters such as injection pressure, speed and temperature should be controlled to ensure the quality of the bottle embryo; S3: Injection molding: After the injection molding is completed, the pressure is maintained and cooled to allow the bottle embryo to be fully solidified and formed in the cavity. The pressure holding time and cooling time should be reasonably adjusted according to the specifications and material properties of the product. When the bottle embryo is cooled and formed, the upper and lower molds are opened to remove the formed bottle embryo from the mold.

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