Bottle preform processing mold capable of automatically controlling feeding quantity

Abstract

The utility model discloses a bottle preform processing die capable of automatically controlling feed quantity, which comprises a base, a top plate mounted at the top of the base, a feed box mounted at the top of the top plate, a discharge pipe mounted at the bottom of the feed box, a measuring cylinder mounted at the bottom of the discharge pipe, and a pump butted with one side of the measuring cylinder through a guide pipe. The twitching pump is connected with a closing die installed on the top of the base through a guide pipe. The driving part drives the screw rod to rotate by a circle and then reset, so that the cylinder rod ascends and descends once in the circular hole in the top of the measuring cylinder, then the conical block ascends once, when the conical block ascends, liquid enters the measuring cylinder through the opening of the opening plate, and when the conical block resets, the opening is blocked, and the liquid is prevented from entering the measuring cylinder. And the amount of the material entering the measuring cylinder is fixed every time the screw rotates in a reciprocating manner, so that quantitative feeding during injection molding every time is realized through simple, convenient and ingenious mechanical linkage, and the defect of control through a sensor in the prior art is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blank processing, in particular to a bottle blank processing mould which automatically controls the feeding amount. Background Art

[0002] Bottle blanks are the products of injection molding and are intermediates. They are blow-molded to become end products. These end products include plastic bottles, oil barrels, cosmetic boxes, shampoo plastic bottles, spray bottles and other packaging containers. They are essential products for people's daily lives. Bottle blanks are originally products in the shape of bottles that have not been molded and assembled by injection molding. Therefore, bottle blank processing is inseparable from the use of injection molds.

[0003] In the prior art, a small injection mold used for single preform injection molding needs to be equipped with a quantitative control mechanism to ensure that the amount injected each time is the same, and the injection mold of the traditional preform needs to control the feed amount by measuring the volume of the material. A volume meter, pressure sensor and other devices are installed at the feed port of the injection molding machine to calculate the volume according to the density of the material and the feed amount, and adjust the feed amount by controlling the filling time and pressure. This type of sensor operation is cumbersome and costly. When the sensor machine fails, the detection data will deviate, which can easily lead to poor quality of mass production and inability to ensure accuracy.

[0004] Therefore, the applicant proposes a bottle blank processing mold that automatically controls the feed amount to solve the problem. Summary of the invention

[0005] The utility model provides a bottle blank processing mould which can automatically control the feeding amount, and solves the above-mentioned background problems.

[0006] In order to solve the above technical problems, the utility model provides a bottle blank processing mold for automatically controlling the feeding amount, comprising a base, a top plate is installed on the top of the base, a material box is installed on the top of the top plate, a discharge pipe is installed at the bottom of the material box, a measuring cylinder is installed at the bottom of the discharge pipe, one side of the measuring cylinder is connected to a pumping pump through a conduit, the pumping pump is connected to the clamping mold installed on the top of the base through a conduit, an opening plate is fixed on the inner wall of the measuring cylinder, and a conical block is fitted in the opening of the opening plate, a barrel rod is fixed on the top of the conical block, the barrel rod passes through the rod hole at the top of the material box, and a screw is threadedly connected to the top of the barrel rod, the screw is rotatably connected to a U-shaped frame installed on the top of the material box, the U-shaped frame and the screw are connected with a driving part, and a motor for controlling the rotation of a rotating shaft is installed on the top of the U-shaped frame;

[0007] The driving part is used for the reciprocating rotation of the screw.

[0008] Furthermore, the driving part includes two rotating shafts rotatably connected between the top of the U-shaped frame and the top of the material box, and two half teeth are fixed on the rotating shafts, and the half teeth are alternately engaged with the full teeth installed on the upper end of the screw, and the upper ends of the two rotating shafts are connected with synchronous belts.

[0009] Furthermore, the rotating shaft has two rings fixed on the upper and lower ends of the synchronous belt, and the rings are used to limit the synchronous belt.

[0010] Furthermore, a square plate is fixed on the outer wall of the barrel rod, and the square plate slides on two vertical rods, and the vertical rods are fixed between the material box and the U-shaped frame.

[0011] Furthermore, a sealing ring is bonded to the inner wall of the circular hole at the top of the material box through which the barrel rod passes, and the sealing ring uses a corrosion-resistant rubber support.

[0012] Furthermore, flanges are fixed to the top of the measuring cylinder and the bottom of the discharge pipe, and the two flanges fit each other and are fixedly connected using screws.

[0013] Furthermore, a U-shaped support plate is fixed to the bottom surface of the top plate, and the pump is installed on the supporting surface of the U-shaped support plate.

[0014] Compared with the related art, the bottle blank processing mold with automatic control of feeding amount provided by the utility model has the following beneficial effects:

[0015] The utility model drives the screw to rotate one circle and then reset through the driving part, so that the cylinder rod is lifted and lowered in the circular hole at the top of the measuring cylinder, and then the conical block is lifted and lowered. When the conical block rises, liquid enters the measuring cylinder through the opening of the opening plate. When the conical block is reset, the opening is blocked again, and then the amount entering the measuring cylinder is fixed each time the screw reciprocates. In this way, quantitative feeding is realized during each injection molding through simple and ingenious mechanical linkage, and the shortcomings of sensor control in the prior art are solved.

[0016] The utility model designs a driving part, when driving the screw to reciprocate, starts the motor to control a rotating shaft to rotate one circle at a uniform speed, and the two rotating shafts rotate together through a synchronous belt, thereby making the two half teeth rotate one circle, the two half teeth alternately mesh with the full teeth, and then can drive the full teeth to rotate one circle and then reset, so that the screw is rotated back and forth once, and a quantitative feeding operation is realized. This operation is very simple and fast, easy to control, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2It is a schematic diagram of the overall cross-sectional structure of the utility model, and the mold is in a state of waiting for cooling after injection molding;

[0019] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0020] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 5 The three-dimensional structure of the driving part of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the measuring cylinder of the utility model;

[0023] Figure 7 The three-dimensional structure of the driving part of the utility model is shown in FIG. Figure 2 .

[0024] Numbers in the figure: 1. base; 2. top plate; 3. material box; 4. discharge pipe; 5. measuring cylinder; 6. opening plate; 7. conical block; 8. cylinder rod; 9. screw; 10. U-shaped frame; 11. driving part; 1100. full teeth; 1101. rotating shaft; 1102. half teeth; 1103. synchronous belt; 1104. ring; 12. U-shaped support plate; 13. pump; 14. mold clamping; 15. flange; 16. sealing ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] Depend on Figure 1-Figure 7 The utility model provides a bottle blank processing mold for automatically controlling the feeding amount, comprising a base 1, a top plate 2 is installed on the top of the base 1, a material box 3 is installed on the top of the top plate 2, a discharge pipe 4 is installed at the bottom of the material box 3, a measuring cylinder 5 is installed at the bottom of the discharge pipe 4, one side of the measuring cylinder 5 is connected to a pumping pump 13 through a conduit, the pumping pump 13 is connected to a clamping mold 14 installed on the top of the base 1 through a conduit, an opening plate 6 is fixed to the inner wall of the measuring cylinder 5, and a conical block 7 is fitted in the opening of the opening plate 6, a barrel rod 8 is fixed on the top of the conical block 7, the barrel rod 8 passes through the rod hole at the top of the material box 3, and a screw 9 is threadedly connected to the top of the barrel rod 8, the screw 9 is rotatably connected to a U-shaped frame 10 installed on the top of the material box 3, the U-shaped frame 10 and the screw 9 are connected with a driving part 11, and the driving part 11 is used for the reciprocating rotation of the screw 9.

[0027] Through the above structural design, when injection molding is carried out, the high-temperature plastic liquid is introduced into the material box 3, and then the driving part 11 drives the screw 9 to rotate one circle and then reset, so that the barrel rod 8 is lifted and lowered in the circular hole at the top of the measuring cylinder 5, and then the conical block 7 is lifted and lowered. When the conical block 7 rises, the liquid enters the measuring cylinder 5 through the opening of the opening plate 6. When the conical block 7 is reset, the opening will be blocked again, and then the amount of the screw 9 entering the measuring cylinder 5 is fixed every time it reciprocates. Then, the pump 13 is used to transport all the plastic liquid in the measuring cylinder 5 to the closed mold 14. It should be noted that the opening shape of the opening plate 6 is completely consistent with the outer wall of the conical block 7.

[0028] The driving part 11 includes two rotating shafts 1101 rotatably connected between the top of the U-shaped frame 10 and the top of the material box 3. Two half teeth 1102 are fixed on the rotating shafts 1101. The half teeth 1102 alternately mesh with the full teeth 1100 installed on the upper end of the screw 9. The upper ends of the two rotating shafts 1101 are connected with synchronous belts 1103. A motor 1105 for controlling the rotation of one rotating shaft 1101 is installed on the top of the U-shaped frame 10.

[0029] By designing the driving part 11, when driving the screw 9 to rotate reciprocatingly, the starting motor 1105 controls a rotating shaft 1101 to rotate one circle at a uniform speed, and the two rotating shafts 1101 rotate together through the synchronous belt 1103, thereby making the two half teeth 1102 rotate one circle, and the two half teeth 1102 alternately mesh with the full teeth 1100, and then the full teeth 1100 can be driven to rotate one circle and then reset, so that the screw 9 can rotate back and forth once, and the quantitative feeding operation is realized. This operation is very simple and fast, easy to control, and improves work efficiency. It should be noted that the screw 9 is located on the inner side of the synchronous belt 1103 and does not contact it.

[0030] The rotating shaft 1101 has two rings 1104 fixed at the upper and lower ends of the synchronous belt 1103 , and the rings 1104 are used to limit the synchronous belt 1103 .

[0031] By designing the circular ring 1104, the synchronous belt 1103 can be effectively limited to avoid its position deviation.

[0032] A square plate 17 is fixed to the outer wall of the barrel rod 8 , and the square plate 17 slides on two vertical rods 18 , and the vertical rods 18 are fixed between the material box 3 and the U-shaped frame 10 .

[0033] By designing the square plate 17 and the vertical rod 18, the barrel rod 8 will be limited, so when the screw rod 9 rotates, the barrel rod 8 will not be driven to rotate, but will move up and down stably, effectively improving the stability of the feeding operation.

[0034] A sealing ring 16 is bonded to the inner wall of the circular hole through which the barrel rod 8 passes at the top of the material box 3, and the sealing ring 16 uses a corrosion-resistant rubber support.

[0035] By designing the sealing ring 16, the circular hole through which the barrel rod 8 passes can be more airtight, thereby preventing harmful gases generated by the high-temperature plastic liquid from migrating out. It should be noted that the liquid level on the inner wall of the material box 3 is half the height of the interior of the material box 3. Therefore, the barrel rod 8 is designed so that the part in contact with the high-temperature liquid will not touch the sealing ring 16 when rising, thereby avoiding damage to the sealing ring 16.

[0036] Flanges 15 are fixed to the top of the measuring cylinder 5 and the bottom of the discharge pipe 4. The two flanges 15 fit each other and are fixedly connected using screws.

[0037] The flange 15 facilitates disassembly and maintenance of the measuring cylinder 5 and subsequent cleaning, which is very convenient.

[0038] A U-shaped support plate 12 is fixed to the bottom surface of the top plate 2 , and the pump is installed on the supporting surface of the U-shaped support plate 12 .

[0039] The U-shaped support plate 12 facilitates the support of the pump, making it more stable during transportation.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A preform processing mold for automatically controlling the feeding amount, comprising a base (1), a top plate (2) mounted on the top of the base (1), and a material box (3) mounted on the top of the top plate (2), characterized in that: A discharge pipe (4) is installed at the bottom of the material box (3), a measuring cylinder (5) is installed at the bottom of the discharge pipe (4), one side of the measuring cylinder (5) is connected to a pumping pump (13) via a conduit, the pumping pump (13) is connected to a clamping mold (14) installed at the top of the base (1) via a conduit, an opening plate (6) is fixed to the inner wall of the measuring cylinder (5), and a conical block (7) is fitted in the opening of the opening plate (6), a barrel rod (8) is fixed to the top of the conical block (7), the barrel rod (8) passes through the rod hole at the top of the material box (3), and a screw rod (9) is threadedly connected to the top of the barrel rod (8), the screw rod (9) is rotatably connected to a U-shaped frame (10) installed at the top of the material box (3), and a driving part (11) is connected to the U-shaped frame (10) and the screw rod (9); The driving part (11) is used for reciprocating rotation of the screw rod (9).

2. A preform processing mold for automatically controlling feed amount according to claim 1, characterized in that: The driving part (11) comprises two rotating shafts (1101) rotatably connected between the top of the U-shaped frame (10) and the top of the material box (3), two half teeth (1102) are fixed on the rotating shaft (1101), and the half teeth (1102) alternately mesh with the full teeth (1100) installed on the upper end of the screw (9), and the upper ends of the two rotating shafts (1101) are connected to synchronous belts (1103). A motor (1105) for controlling the rotation of one rotating shaft (1101) is installed on the top of the U-shaped frame (10).

3. A bottle blank processing mold with automatic feeding amount control according to claim 2, characterized in that: The rotating shaft (1101) has two circular rings (1104) fixed at the upper and lower ends of the synchronous belt (1103), and the circular rings (1104) are used to limit the synchronous belt (1103).

4. A bottle blank processing mold with automatic feeding amount control according to claim 1, characterized in that: A square plate (17) is fixed to the outer wall of the barrel rod (8), and the square plate (17) slides on two vertical rods (18), and the vertical rods (18) are fixed between the material box (3) and the U-shaped frame (10).

5. The bottle blank processing mold with automatic feeding amount control according to claim 1 is characterized in that: A sealing ring (16) is bonded to the inner wall of the circular hole at the top of the material box (3) through which the barrel rod (8) passes, and the sealing ring (16) uses a corrosion-resistant rubber support.

6. A bottle blank processing mold with automatic feeding amount control according to claim 1, characterized in that: Flanges (15) are fixed to the top end of the measuring cylinder (5) and the bottom end of the discharge pipe (4), and the two flanges (15) fit each other and are fixedly connected using screws.

7. A preform processing mold for automatically controlling feed amount according to claim 1, characterized in that: A U-shaped support plate (12) is fixed to the bottom surface of the top plate (2), and the pumping pump is mounted on the supporting surface of the U-shaped support plate (12).

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