Bottle preform ejection mechanism for PET bottle preform injection molding equipment

Abstract

The utility model discloses a bottle preform ejection mechanism for PET bottle preform injection molding equipment, which comprises a bottom plate, the upper end face of the bottom plate is fixedly connected with a conveying frame, the upper end face of the conveying frame is fixedly connected with a fixing plate, the upper end face of the fixing plate is fixedly connected with a molding box, and one side of the molding box is provided with a plurality of uniformly distributed molding holes. A movable plate is slidably connected to the upper end face of the fixed plate, a material returning plate is movably connected to one side of the movable plate, and two symmetrical positioning frames are fixedly connected to the upper end face of the movable plate. The screw rod is in threaded connection with one of the connecting blocks, the other connecting block slides on the sliding rod, the movable plate is moved, the multiple mold rods on the movable plate are driven to move out of the forming holes, the mold rods are used in cooperation with a material returning plate, bottle blanks on the mold rods are rapidly returned, manual operation is not needed, the material returning stability is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle embryo ejection mechanisms, in particular to a bottle embryo ejection mechanism for PET bottle embryo injection molding equipment. Background Art

[0002] PET preforms are typical injection molding products, which are easy to transport. They are mostly made of plastic, have uniform texture and good insulation. They are intermediate products of plastic bottles and oil barrels. PET bottles have strong applicability and are widely used in daily necessities, daily chemical packaging and other fields.

[0003] In the existing PET preform production process, the preforms usually need to be ejected after molding to facilitate collection and processing of the preforms. In the existing PET preform production process, the preforms are quickly molded through the cooperation of the injection molding machine and the mold. The preforms are easily adhered to the mold, resulting in the preforms being unable to be quickly separated from the mold. Manual ejection is required by staff. Since the production volume of preforms is large, frequent adhesion increases the work intensity of the staff and affects the production efficiency of the preforms. Therefore, a preform ejection mechanism for PET preform injection molding equipment is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a preform ejection mechanism for a PET preform injection molding device. The preforms can be quickly molded by cooperating with the mold rod and the molding hole. The forward and reverse motors are used to screw the spiral rod with one of the connection blocks, and the other connection block slides on the sliding rod to move the movable plate, thereby moving a plurality of mold rods on the movable plate out of the molding hole. The material stripping plate is used to quickly strip the preforms on the mold rod without manual operation, thereby improving the stability of the material stripping and the work efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a preform ejection mechanism for a PET preform injection molding device, comprising a bottom plate, the upper end surface of the bottom plate is fixedly connected to a conveying frame, the upper end surface of the conveying frame is fixedly connected to a fixing plate, the upper end surface of the fixing plate is fixedly connected to a molding box, a side of the molding box is provided with a plurality of evenly distributed molding holes, the upper end surface of the fixing plate is slidably connected to a moving plate, one side of the moving plate is movably connected to a stripping plate, the lower end surface of the positioning frame is fixedly connected to an electric telescopic rod, the movable end of the electric telescopic rod is fixedly connected to a clamping block, the clamping block is movably connected to the moving plate and the stripping plate, and the moving plate is fixedly connected to the side in contact with the stripping plate There are a plurality of evenly distributed mold rods, a plurality of the mold rods correspond one to one with a plurality of the forming holes, the mold rods are movably connected to the stripping plate, connecting blocks are fixedly connected on both sides of the movable plate, a spiral rod is screwed on one of the connecting blocks, both ends of the spiral rod are rotatably connected to the first fixed blocks, a forward and reverse motor is provided on one side of one of the first fixed blocks, the output end of the forward and reverse motor is fixedly connected to the spiral rod, a positioning plate is fixedly connected to the bottom of the forward and reverse motor, the positioning plate is fixedly connected to the fixed plate, a sliding rod is slidably connected to the other connecting block, both ends of the sliding rod are fixedly connected to the second fixed blocks, and the second fixed block is fixedly connected to the fixed plate.

[0006] The beneficial effects of the utility model are as follows: by using the forward and reverse motors, the spiral rod is screwed to one of the connecting blocks, and the other connecting block slides on the sliding rod to move the movable plate, so that the movable plate moves with a plurality of mold rods and the stripping plate. The two electric telescopic rods are extended at the same time, so that the clamping block can position the movable plate, so that the stripping plate and the movable plate move at the same time, and the preforms are taken out without being left in the forming holes. The two electric telescopic rods are quickly retracted, and the continuous operation of the forward and reverse motors can be used to quickly strip the preforms on the mold rods.

[0007] In order to achieve rapid return of the preform;

[0008] As a further improvement of the above technical solution: positioning blocks are fixedly connected on both sides of the stripping plate, a guide rod is slidably connected to the positioning block, one end of the guide rod is fixedly connected to a retaining block, the retaining block is fixedly connected to the forming box, and the end of the guide rod away from the retaining block is fixedly connected to a limiting plate.

[0009] The beneficial effect of this improvement is that the stripping plate can be guided by the sliding of the positioning block on the guide rod, thereby ensuring the stability of the stripping plate during movement without skewing or shaking.

[0010] In order to guide the push plate;

[0011] As a further improvement of the above technical solution: the upper surface of the fixing plate is provided with two symmetrical limiting grooves, the limiting blocks are slidably connected in the limiting grooves, and the limiting blocks are fixedly connected to the connecting block.

[0012] The beneficial effects of this improvement are: by using the limit groove and the limit block, the two connecting blocks can be guided to ensure sufficient stability during the movement of the connecting blocks;

[0013] In order to guide the connection block;

[0014] As a further improvement of the above technical solution: a guide block is fixedly connected to the upper end surface of the movable plate, a guide column is slidably connected to the guide block, one end of the guide column is fixedly connected to a stabilizing block, the stabilizing block is fixedly connected to the forming box, the end of the guide column away from the stabilizing block is fixedly connected to a support frame, and the support frame is fixedly connected to the fixed plate.

[0015] The beneficial effects of this improvement are: by using the guide column and the guide block, the movable plate can be guided to ensure that the movable plate is sufficiently stable up and down during the movement, and will not tilt or shake, thereby ensuring the stability of the movable plate;

[0016] In order to guide the top of the moving plate and ensure the stability of the moving plate;

[0017] As a further improvement of the above technical solution: a retaining plate is fixedly connected to one side of the conveying frame, a driving motor is fixedly connected to the upper end surface of the fixed plate, an active roller is connected to the output end of the driving motor, the active roller is rotatably connected to the conveying frame, a driven roller is provided on one side of the active roller, the driven roller is rotatably connected to the conveying frame, and the active roller and the driven roller are connected through a conveyor belt transmission.

[0018] The beneficial effect of this improvement is that, by using a driving motor, the active roller can be driven between the conveyor belt and the driven roller, so that the falling preforms can be quickly conveyed by the rotation of the conveyor belt to prevent accumulation below the collecting tank;

[0019] In order to achieve rapid transportation of the falling preforms;

[0020] As a further improvement of the above technical solution: a collecting groove is provided on the upper surface of the fixed plate, and a control box is fixedly connected to the upper surface of the fixed plate.

[0021] The beneficial effects of this improvement are: by using the collection tank, the bottle preforms that have been returned can be collected centrally, and the control box can control the ejection mechanism;

[0022] In order to collect the returned preforms;

[0023] As a further improvement of the above technical solution: two symmetrical sliding grooves are provided on the upper end surface of the fixed plate, a slider is slidably connected in the sliding groove, the slider is fixedly connected to the stripping plate, and the two sliding grooves are located between the limiting groove and the collecting groove.

[0024] The beneficial effects of this improvement are: by using the slide groove and the slider, the stripping plate can be limited to ensure that the stripping plate is sufficiently stable during the movement, does not tilt or shake, can maintain a vertical state with the fixed plate, and can stably strip the material;

[0025] In order to limit the stripping plate, the auxiliary stripping plate moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The three-dimensional structure provided by the utility model is shown in FIG. Figure 1 ;

[0027] Figure 2 The utility model provides Figure 1 The enlarged view of point A in the middle;

[0028] Figure 3 A top view provided for the utility model;

[0029] Figure 4 The utility model provides Figure 3 The three-dimensional cross-section view at AA in the middle;

[0030] Figure 5 A front view provided for the utility model;

[0031] Figure 6 The utility model provides Figure 5 A three-dimensional cross-section view at the middle BB;

[0032] Figure 7 The three-dimensional structure provided by the utility model is shown in FIG. Figure 2 ;

[0033] Figure 8 The three-dimensional structure provided by the utility model is shown in FIG. Figure 3 .

[0034] In the figure, 1, bottom plate; 11, conveying frame; 12, fixed plate; 13, forming box; 14, forming hole; 15, moving plate; 16, stripping plate; 17, positioning frame; 18, electric telescopic rod; 19, clamping block; 20, mold rod; 21, connecting block; 22, screw rod; 23, first fixed block; 24, forward and reverse motor; 25, positioning plate; 26, sliding rod; 27, second fixed block; 31, positioning block; 32, guide rod; 33, retaining block; 34, limiting plate; 41, limiting groove; 42, limiting block; 51, guide block; 52, guide column; 53, stabilizing block; 54, supporting frame; 61, retaining plate; 62, driving motor; 63, active roller; 64, driven roller; 65, conveyor belt; 71, collecting trough; 72, control box; 81, slide chute; 82, slider. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0036] like Figures 1 to 8As shown, a preform ejection mechanism for a PET preform injection molding device provided by an embodiment of the utility model comprises a bottom plate 1, a conveying frame 11 is fixedly connected to the upper end surface of the bottom plate 1, a fixing plate 12 is fixedly connected to the upper end surface of the conveying frame 11, a molding box 13 is fixedly connected to the upper end surface of the fixing plate 12, a plurality of molding holes 14 evenly distributed are provided on one side of the molding box 13, a moving plate 15 is slidably connected to the upper end surface of the fixing plate 12, a stripping plate 16 is movably connected to one side of the moving plate 15, the fixing plate 12 can fix the molding box 13 to ensure the stability of the molding box 13, and make the moving plate 15 and the stripping plate 16 slide stably on the fixing plate 12, two symmetrical positioning frames 17 are fixedly connected to the upper end surface of the moving plate 15, and the lower end surface of the positioning frame 17 is fixedly connected to There is an electric telescopic rod 18, and a block 19 is fixedly connected to the movable end of the electric telescopic rod 18. The block 19 is movably connected to the movable plate 15 and the stripping plate 16. The two electric telescopic rods 18 are extended at the same time, and can move downward with their corresponding blocks 19, so that the stripping plate 16 and the movable plate 15 move at the same time. A plurality of uniformly distributed mold rods 20 are fixedly connected to the side where the movable plate 15 contacts the stripping plate 16. The plurality of mold rods 20 correspond to the plurality of forming holes 14 one by one. The mold rods 20 are movably connected to the stripping plate 16. Both sides of the movable plate 15 are fixedly connected with connecting blocks 21, and a spiral rod 22 is screwed on one of the connecting blocks 21. Both ends of the spiral rod 22 are rotatably connected with a first fixed block 23, and one side of one of the first fixed blocks 23 is provided with a forward and reverse motor 24, the output end of the forward and reverse motor 24 is fixedly connected to the screw rod 22, the bottom of the forward and reverse motor 24 is fixedly connected to a positioning plate 25, the positioning plate 25 is fixedly connected to the fixed plate 12, and the other connecting block 21 is slidably connected to a sliding rod 26, and both ends of the sliding rod 26 are fixedly connected to a second fixed block 27, and the second fixed block 27 is fixedly connected to the fixed plate 12. Under the action of the forward and reverse motor 24, the screw rod 22 is screwed to one of the connecting blocks 21, and the other connecting block 21 slides on the sliding rod 26, bringing several mold rods 20 and the stripping plate 16 on the movable plate 15 away from the molding box 13, and the two clamping blocks 19 move upward at the same time, and cooperate with the continued rotation of the screw rod 22 to realize the rapid stripping of the bottle embryo on the mold rod 20. Both sides of the stripping plate 16 are fixedly connected with positioning blocks 31, and a guide rod 32 is slidably connected to the positioning block 31. One end of the guide rod 32 is fixedly connected with a retaining block 33, and the retaining block 33 is fixedly connected to the forming box 13. The end of the guide rod 32 away from the retaining block 33 is fixedly connected to a limiting plate 34. The use of the two positioning blocks 31 and the two guide rods 32 can guide the stripping plate 16 to ensure the stable movement of the stripping plate 16. Two symmetrical limiting grooves 41 are provided on the upper end surface of the fixed plate 12. The limiting block 42 is slidably connected in the limiting groove 41. The limiting block 42 is fixedly connected to the connecting block 21. The use of the two limiting grooves 41 and the two limiting blocks 42 can guide the corresponding connecting blocks 21 to ensure the stability of the movement of the connecting block 21.The upper end surface of the movable plate 15 is fixedly connected with a guide block 51, and a guide column 52 is slidably connected to the guide block 51. A stabilizing block 53 is fixedly connected to one end of the guide column 52, and the stabilizing block 53 is fixedly connected to the molding box 13. The end of the guide column 52 away from the stabilizing block 53 is fixedly connected to a support frame 54, and the support frame 54 is fixedly connected to the fixed plate 12. The guide block 51 interacts on the guide column 52 to guide the top of the movable plate 15 to ensure that the upper part of the movable plate 15 is sufficiently stable. A retaining plate 61 is fixedly connected to one side of the conveying frame 11, and a driving motor 62 is fixedly connected to the upper end surface of the fixed plate 12. An active roller 63 is connected to the output end of the driving motor 62. The active roller 63 is rotatably connected to the conveying frame 11. A driven roller 64 is provided on one side of the active roller 63. The driven roller 64 is rotatably connected to the conveying frame 11. The active roller 63 and The driven rollers 64 are connected by a conveyor belt 65. The use of the driving motor 62 can make the active roller 63 transmit the transmission between the conveyor belt 65 and the driven roller 64, so that the conveyor belt 65 rotates to transport the falling preforms. The upper end surface of the fixed plate 12 is provided with a collecting groove 71, and the upper end surface of the fixed plate 12 is fixedly connected with a control box 72. The collecting groove 71 can collect the preforms, and the control box 72 can control the ejection mechanism. The upper end surface of the fixed plate 12 is provided with two symmetrical chute 81, and a slider 82 is slidably connected in the chute 81. The slider 82 is fixedly connected to the stripping plate 16. The two chute 81 is located between the limiting groove 41 and the collecting groove 71. The use of the two chute 81 and the two sliders 82 can limit the bottom of the stripping plate 16 to ensure the stability of the bottom of the stripping plate 16.

[0037] The working principle and use process of the utility model are as follows: when in use, first, through the rotation of the forward and reverse motors 24, one of the connecting blocks 21 is screwed with the spiral rod 22, and the other connecting block 21 slides on the sliding rod 26, so that the movable plate 15 moves with the plurality of mold rods 20 toward the direction of the molding box 13, and the stripping plate 16 moves with the movable plate 15. When molding is completed, the two electric telescopic rods 18 are quickly extended to make the clamping block 19 move downward, so that the stripping plate 16 and the movable plate 15 are fixed, and the forward and reverse motors 24 are reversed, so that the movable plate 15 moves the bottle embryos on the stripping plate 16 and the plurality of mold rods 20 out of the molding hole 14. After completely moving out, the two electric telescopic rods 18 are quickly retracted, and the spiral rod 22 continues to rotate, and the movable plate 15 moves with the plurality of mold rods 20 in the direction away from the stripping plate 16, so as to realize the rapid stripping of the bottle embryos, and the bottle embryos fall and are collected through the collecting trough 71, and finally are transported and collected by the conveyor belt 65, so as to realize the use process of the entire bottle embryo ejection mechanism.

[0038] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A preform ejection mechanism for a PET preform injection molding device, comprising a bottom plate (1), characterized in that: The upper end surface of the bottom plate (1) is fixedly connected to a conveying frame (11), the upper end surface of the conveying frame (11) is fixedly connected to a fixed plate (12), the upper end surface of the fixed plate (12) is fixedly connected to a molding box (13), one side of the molding box (13) is provided with a plurality of evenly distributed molding holes (14), the upper end surface of the fixed plate (12) is slidably connected to a moving plate (15), one side of the moving plate (15) is movably connected to a stripping plate (16), the upper end surface of the moving plate (15) is fixedly connected to two symmetrical positioning frames (17), the lower end surface of the positioning frame (17) is fixedly connected to an electric telescopic rod (18), the movable end of the electric telescopic rod (18) is fixedly connected to a clamping block (19), and the clamping block (19) is movably connected to the moving plate (15) and the stripping plate (16); A plurality of uniformly distributed mold rods (20) are fixedly connected to one side of the movable plate (15) in contact with the stripping plate (16), and the plurality of mold rods (20) correspond to the plurality of forming holes (14) one by one. The mold rods (20) are movably connected to the stripping plate (16). Both sides of the movable plate (15) are fixedly connected to connecting blocks (21), one of which is screwed with a spiral rod (22), and both ends of the spiral rod (22) are rotatably connected to a first fixed block (23), and one of the connecting blocks (21) is screwed with a spiral rod (22). A forward and reverse motor (24) is provided on one side of the first fixed block (23), the output end of the forward and reverse motor (24) is fixedly connected to the spiral rod (22), a positioning plate (25) is fixedly connected to the bottom of the forward and reverse motor (24), the positioning plate (25) is fixedly connected to the fixed plate (12), a sliding rod (26) is slidably connected to the other connecting block (21), both ends of the sliding rod (26) are fixedly connected to a second fixed block (27), and the second fixed block (27) is fixedly connected to the fixed plate (12).

2. The preform ejection mechanism for PET preform injection molding equipment according to claim 1, characterized in that: Both sides of the stripping plate (16) are fixedly connected with positioning blocks (31), the positioning blocks (31) are slidably connected with guide rods (32), one end of the guide rod (32) is fixedly connected with a retaining block (33), the retaining block (33) is fixedly connected to the forming box (13), and one end of the guide rod (32) away from the retaining block (33) is fixedly connected with a limiting plate (34).

3. The preform ejection mechanism for PET preform injection molding equipment according to claim 1, characterized in that: The upper end surface of the fixing plate (12) is provided with two symmetrical limiting grooves (41), a limiting block (42) is slidably connected in the limiting groove (41), and the limiting block (42) is fixedly connected to the connecting block (21).

4. The preform ejection mechanism for PET preform injection molding equipment according to claim 1, characterized in that: The upper end surface of the movable plate (15) is fixedly connected with a guide block (51), the guide block (51) is slidably connected with a guide column (52), one end of the guide column (52) is fixedly connected with a stabilizing block (53), the stabilizing block (53) is fixedly connected to the molding box (13), and one end of the guide column (52) away from the stabilizing block (53) is fixedly connected with a support frame (54), and the support frame (54) is fixedly connected to the fixed plate (12).

5. The preform ejection mechanism for PET preform injection molding equipment according to claim 1, characterized in that: A retaining plate (61) is fixedly connected to one side of the conveying frame (11); a driving motor (62) is fixedly connected to the upper end surface of the fixing plate (12); an active roller (63) is connected to the output end of the driving motor (62); the active roller (63) is rotatably connected to the conveying frame (11); a driven roller (64) is provided on one side of the active roller (63); the driven roller (64) is rotatably connected to the conveying frame (11); and the active roller (63) and the driven roller (64) are connected by a conveyor belt (65).

6. The preform ejection mechanism for PET preform injection molding equipment according to claim 3, characterized in that: The upper end surface of the fixed plate (12) is provided with a collecting groove (71), and the upper end surface of the fixed plate (12) is fixedly connected to a control box (72).

7. The preform ejection mechanism for PET preform injection molding equipment according to claim 6, characterized in that: The upper end surface of the fixed plate (12) is provided with two symmetrical sliding grooves (81), a sliding block (82) is slidably connected in the sliding groove (81), the sliding block (82) is fixedly connected to the stripping plate (16), and the two sliding grooves (81) are located between the limiting groove (41) and the collecting groove (71).

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