Switching die and bottom die linkage mechanism of bottle blowing machine forming group

Abstract

The utility model provides a kind of switch mould and bottom die linkage mechanism of bottle blowing machine forming group, including mould frame, left template, right template, first connecting rod, second connecting rod and lifting drive assembly;The left template and right template are closed die and form mould body, and are installed in the mould frame, the first connecting rod is provided with two, respectively being arranged in the two sides away from the mould body, when lifting drive assembly makes the first connecting rod move upwards, under the cooperation of supporting shaft and second connecting rod, make the left template and right template separate, since cam plate fixedly connected one of template, therefore, cam plate will move outward with left template or right template, under the left and right of guide inclined groove on cam plate, make cam bearing move to the lowest of the guide inclined groove, to realize the downward movement of bottom template, so that bottom template realizes and switch mould synchronous linkage, the present application structure is simple, control is stable and power consumption is small, suitable for large-scale popularization and use.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, and in particular to a linkage mechanism between the opening and closing mold and the bottom mold of a blow molding machine. Background Technology

[0002] Currently, the traditional method involves installing motors to drive the left and right opening and closing molds and the bottom mold separately, or using cylinders to control the movement of the left and right opening and closing molds and the bottom mold separately. Using traditional equipment requires multiple motors to drive the left and right opening and closing molds and the bottom mold separately, which results in high equipment investment costs, high power consumption, and waste of resources. Alternatively, using cylinders to control the opening and closing of the left and right molds and the bottom mold of the molding group to perform up and down reciprocating movements results in poor structural stability, susceptibility to air pressure fluctuations, slow speed, high noise, and poor synchronization of the opening and closing of the left and right molds. Utility Model Content

[0003] (a) Technical problems to be solved In order to solve the above-mentioned problems in the prior art, this utility model provides a linkage mechanism between the opening and closing mold and the bottom mold of the molding group of a blow molding machine.

[0004] (II) Technical Solution To achieve the above objectives, the main technical solutions adopted by this utility model include: A blow molding machine molding assembly includes a mold frame, a left mold plate, a right mold plate, a first connecting rod, a second connecting rod, and a lifting drive assembly. The left and right mold plates are closed to form a mold body, which is installed inside the mold frame. Two first connecting rods are provided, respectively located on opposite sides away from the mold body. A support shaft is provided on the first connecting rod, and the surface of the support shaft has two annular grooves. Rolling bearings connect the second connecting rods in both annular grooves. The free end of one second connecting rod is hinged to the left or right mold plate, and the free end of the other second connecting rod is hinged to the inner wall of the mold frame. The lifting drive assembly is connected to the first connecting rod and is used to drive the first connecting rod to move up and down.

[0005] Preferably, the lifting drive assembly includes a synchronous pulley, a synchronous belt, a rotating rod, a rotating shaft, a bearing housing, a motor, and a reduction gearbox; Two bearing seats are provided, arranged symmetrically on the top of the mold frame; The rotating shaft is installed in the bearing housing, and the synchronous pulley and the top end of the rotating rod are fixedly installed at the end of the rotating shaft in sequence. The timing pulleys are connected by the timing belt; The bottom end of the rotating rod is hinged to the top end of the first connecting rod; The motor is connected to one of the rotating shafts via the gearbox.

[0006] Preferably, it also includes a limiting seat, wherein two sets of limiting seats are provided, which are symmetrically arranged on the bottom of the inner wall of the mold frame and located below the corresponding first connecting rod.

[0007] Preferably, the surface of the first connecting rod is provided with two support shafts in the vertical direction.

[0008] Preferably, it also includes a bottom template, the bottom of which is provided with multiple positioning rods, the positioning rods being connected to the bottom of the inner wall of the mold frame via linear bearings.

[0009] Preferably, the bottom template is connected to cam bearings on both sides via cam bearing seats, and a cam plate is fixedly installed on the left or right template. A guide groove is opened on the surface of the cam plate, and the cam bearing is installed in the guide groove. When the bottom template is located at the bottom of the mold body, the cam bearing is located at the highest point of the guide groove. The guide groove is located on the surface of the cam plate away from the connected left or right template.

[0010] (III) Beneficial Effects The beneficial effects of this utility model are as follows: When the lifting drive assembly moves the first connecting rod upward, the left template and the right template are separated under the cooperation of the support shaft and the second connecting rod. Since the cam plate is fixedly connected to one of the templates, the cam plate will move outward with the left or right template. Under the left and right guide grooves on the cam plate, the cam bearing moves to the lowest point of the guide groove, thereby realizing the downward movement of the bottom template. This allows the bottom template to achieve synchronous linkage with the opening and closing mold. This application has a simple structure, stable control, and low power consumption, making it suitable for large-scale promotion and use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of a linkage mechanism between the opening and closing mold and the bottom mold of a blow molding machine. Figure 2 This is a rear view structural diagram of a linkage mechanism between the opening and closing mold and the bottom mold of a blow molding machine. Figure 3 This is a top view schematic diagram of a linkage mechanism between the opening and closing mold and the bottom mold of a blow molding machine. Figure 4 This is a schematic diagram of the main structure of the base template; Figure 5 This is a side view of the bottom template.

[0012] [Explanation of Labels in the Attached Image] 1. Mold frame; 2. Left template; 3. Right template; 4. First link; 5. Second link; 6. Support shaft; 7. Lifting drive assembly; 71. Rotating shaft; 72. Synchronous belt; 73. Synchronous pulley; 74. Rotating rod; 75. Motor; 76. Gearbox; 77. Bearing housing; 8. Limiting seat; 9. Base template; 10. Cam bearing; 11. Cam plate; 12. Positioning rod; 13. Linear bearings; 14. Cam bearing housing. Detailed Implementation

[0013] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Please refer to Figures 1 to 5 This utility model provides a linkage mechanism for the opening and closing of the mold and the bottom mold of a blow molding machine, including a mold frame 1, a left template 2, a right template 3, a first connecting rod 4, a second connecting rod 5, and a lifting drive assembly 7; the left template 2 and the right template 3 are closed to form the mold body and are installed in the mold frame 1. There are two first connecting rods 4, which are respectively located on the two sides away from the mold body. A support shaft 6 is provided on the first connecting rod 4. The surface of the support shaft 6 is provided with two annular grooves. The two annular grooves are connected to the second connecting rod 5 by rolling bearings. The free end of one second connecting rod 5 is hinged to the left template 2 or the right template 3, and the free end of the other second connecting rod 5 is hinged to the inner wall of the mold frame 1. The lifting drive assembly 7 is connected to the first connecting rod 4 and is used to drive the first connecting rod 4 to move up and down. In use, when the lifting drive assembly 7 moves the first connecting rod 4 upward, the left template 2 and the right template 3 are separated by the support shaft 6 and the second connecting rod 5, realizing automatic opening and closing. Similarly, when the first connecting rod 4 moves downward, the left template 2 and the right template 3 are closed by the support shaft 6 and the second connecting rod 5, thus easily realizing mold opening and closing control.

[0015] In this embodiment, the lifting drive assembly 7 includes a synchronous pulley 73, a synchronous belt 72, a rotating rod 74, a rotating shaft 71, a bearing seat 77, a motor 75, and a reduction gearbox 76. Two bearing housings 77 are provided, symmetrically arranged on the top of the mold frame 1; The rotating shaft 71 is installed in the bearing housing 77, and the end of the rotating shaft 71 is sequentially fixed with the synchronous pulley 73 and the top end of the rotating rod 74; The synchronous pulleys 73 are connected by a synchronous belt 72. The bottom end of the rotating rod 74 is hinged to the top end of the first connecting rod 4; Motor 75 is connected to one of the rotating shafts 71 via gearbox 76; In use, the motor 75 causes one of the rotating shafts 71 to rotate through the reduction gearbox 76. With the cooperation of the synchronous pulley 73 and the synchronous belt 72, the two rotating shafts 71 rotate synchronously. The rotating shafts 71 drive the rotating rod 74 to rotate, thereby controlling the up and down movement of the first connecting rod 4.

[0016] In this embodiment, a limiting seat 8 is also included. Two sets of limiting seats 8 are arranged symmetrically on the bottom of the inner wall of the mold frame 1 and are located below the corresponding first connecting rod 4 to limit the lowest point of the first connecting rod 4 falling.

[0017] In this embodiment, two support shafts 6 are provided on the surface of the first connecting rod 4 in the vertical direction.

[0018] In this embodiment, a bottom template 9 is also included. Multiple positioning rods 12 are provided at the bottom of the bottom template 9. The positioning rods 12 are connected to the bottom of the inner wall of the mold frame 1 through linear bearings 13. Cam bearings 10 are connected to both sides of the bottom template 9 through cam bearing seats 14. A cam plate 11 is fixedly provided on the left template 2 or the right template 3. A guide groove is opened on the surface of the cam plate 11. The cam bearing 10 is installed in the guide groove. When the bottom template 9 is located at the bottom of the mold body, the cam bearing 10 is located at the highest point of the guide groove. The guide groove is provided on the surface of the cam plate 11 away from the connected left template 2 or right template 3. When in use, when the left template 2 and the right template 3 move in opposite directions to open the mold, the cam plate 11 is fixedly connected to one of the templates. Therefore, the cam plate 11 will move outward with the left template 2 or the right template 3. Under the left and right guide grooves on the cam plate 11, the cam bearing 10 moves to the lowest point of the guide groove, thereby realizing the downward movement of the bottom template 9.

[0019] The working principle of this utility model is as follows: When the lifting drive assembly 7 moves the first connecting rod 4 upward, the left template 2 and the right template 3 are separated by the cooperation of the support shaft 6 and the second connecting rod 5. Since the cam plate 11 is fixedly connected to one of the templates, the cam plate 11 will move outward with the left template 2 or the right template 3. Under the left and right guide grooves on the cam plate 11, the cam bearing 10 moves to the lowest point of the guide groove, thereby realizing the downward movement of the bottom template 9, so that the bottom template 9 can achieve synchronous linkage with the opening and closing mold.

[0020] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0021] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A linkage mechanism for the opening and closing of the mold and the bottom mold in a blow molding machine, characterized in that, The system includes a mold frame, a left template, a right template, a first connecting rod, a second connecting rod, and a lifting drive assembly. The left and right templates are joined together to form the mold body, which is installed inside the mold frame. Two first connecting rods are provided, one on each side away from the mold body. A support shaft is provided on the first connecting rod, and the surface of the support shaft has two annular grooves. Rolling bearings connect the second connecting rods in both annular grooves. The free end of one second connecting rod is hinged to the left or right template, and the free end of the other second connecting rod is hinged to the inner wall of the mold frame. The lifting drive assembly is connected to the first connecting rod and is used to drive the first connecting rod to move up and down.

2. The linkage mechanism between the opening and closing mold and the bottom mold of the blow molding machine as described in claim 1, characterized in that, The lifting drive assembly includes a synchronous pulley, a synchronous belt, a rotating rod, a rotating shaft, a bearing housing, a motor, and a reduction gearbox; Two bearing seats are provided, arranged symmetrically on the top of the mold frame; The rotating shaft is installed in the bearing housing, and the synchronous pulley and the top end of the rotating rod are fixedly installed at the end of the rotating shaft in sequence. The timing pulleys are connected by the timing belt; The bottom end of the rotating rod is hinged to the top end of the first connecting rod; The motor is connected to one of the rotating shafts via the gearbox.

3. The linkage mechanism between the opening and closing mold and the bottom mold of the blow molding machine as described in claim 1, characterized in that, It also includes a limiting seat, of which two sets are provided, which are symmetrically arranged on the bottom of the inner wall of the mold frame and located below the corresponding first connecting rod.

4. The linkage mechanism between the opening and closing mold and the bottom mold of the blow molding machine as described in claim 1, characterized in that, The first connecting rod surface is provided with two support shafts in the vertical direction.

5. The linkage mechanism between the opening and closing mold and the bottom mold of the blow molding machine as described in claim 1, characterized in that, It also includes a bottom template, the bottom of which is provided with multiple positioning rods, which are connected to the bottom of the inner wall of the mold frame via linear bearings.

6. The linkage mechanism between the opening and closing mold and the bottom mold of the blow molding machine as described in claim 1, characterized in that, Cam bearings are connected to both sides of the bottom template via cam bearing seats. A cam plate is fixedly installed on the left or right template. A guide groove is opened on the surface of the cam plate. The cam bearing is installed in the guide groove. When the bottom template is located at the bottom of the mold body, the cam bearing is located at the highest point of the guide groove. The guide groove is located on the surface of the cam plate away from the connected left or right template.

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