Blow molding machine easy to clean

Abstract

The utility model discloses a blow molding machine easy to clean, which belongs to the technical field of blow molding machines and comprises a blow molding machine body and a mold body, a mounting plate is arranged between the mold body and the blow molding machine body, mounting racks are symmetrically arranged on two sides of the mounting plate, cleaning mechanisms are connected onto the mounting racks, and the cleaning mechanisms are connected with the blow molding machine body. The cleaning mechanism comprises a rolling brush, two first connecting rods, a second connecting rod and a second bevel gear assembly, and the second bevel gear assembly comprises two meshed second bevel gears; through cooperative use of all the devices, a mold cavity of the mold body is cleaned, an arranged spring pushes a rolling brush to be close to the mold cavity of the mold body through the reset effect, then a second motor is started, and the rolling brush is driven to rotate under the effect of a rotating rod and a first bevel gear assembly, so that the mold cavity of the mold body is cleaned; dust or impurities are prevented from being attached to the surface of the cavity in the production process, and the forming quality of plastic products is not affected.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, specifically an easy-to-clean blow molding machine. Background Technology

[0002] A blow molding machine is a processing equipment that uses compressed air to inflate molten plastic preforms into hollow plastic products. It is widely used in packaging, daily chemicals, chemical industry and other fields. The blow molding machine melts thermoplastic plastics (such as PE, PP, PVC, etc.) through a screw extruder and extrudes them into tubular preforms. Then, the preforms are placed in a mold, compressed air is introduced to make them expand and fit into the mold cavity, and after cooling, they are demolded to obtain hollow products.

[0003] Upon investigation, a Chinese utility model patent discloses an easy-to-clean blow molding machine (publication number: CN219236107U), which includes a blow molding machine body, a placement worktable installed on the blow molding machine body, and a bottom movable cleaning component connected to the placement worktable; a lifting adjustment component is detachably installed above the placement worktable.

[0004] Although the aforementioned patent allows for the movement and adjustment of the worktable for cleaning through the bottom movable cleaning component, enabling the blow molding machine body to quickly and continuously process the mold, the plastic product is formed through the mold cavity during blow molding. However, this device does not have the ability to clean the mold cavity, which means that dust or impurities easily adhere to the surface of the cavity during production. If these contaminants accumulate over a long period without timely cleaning, they will affect the adhesion between the molten plastic and the mold, resulting in surface defects (such as bubbles or scratches) or structural defects (such as uneven wall thickness) on the plastic product.

[0005] Therefore, this invention provides an easy-to-clean blow molding machine to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides an easy-to-clean blow molding machine, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: It includes a blow molding machine body and a mold body. A mounting plate is provided between the mold body and the blow molding machine body. Mounting brackets are symmetrically arranged on both sides of the mounting plate. A cleaning mechanism is connected to the mounting brackets. The cleaning mechanism includes a roller brush, two first connecting rods, a second connecting rod, and a second bevel gear assembly. The second bevel gear assembly includes two meshing second bevel gears, which are coaxially fixed to the roller brush and the second connecting rod, respectively. A moving mechanism is provided between the mounting plate and the blow molding machine body. The moving mechanism includes a spur gear, an arc-shaped rack, and an arc-shaped plate, both of which are fixedly connected to the mounting plate.

[0010] As a preferred technical solution of this application, the roller brush and the second connecting rod are both rotatably connected to the mounting frame, the first connecting rod is rotatably connected to the mounting plate, the second connecting rod slides coaxially with the first connecting rod, a rotating rod is rotatably connected inside the mounting plate, and a first bevel gear assembly is provided between the rotating rod and the first connecting rod. The first bevel gear assembly includes two meshing second bevel gears, and the two second bevel gears are respectively fixed coaxially with the rotating rod and the first connecting rod.

[0011] As a preferred technical solution of this application, a telescopic rod is symmetrically fixed between the mounting bracket and the mounting plate, and a spring is sleeved on the telescopic rod, with the two ends of the spring being fixedly connected to the mounting plate and the mounting bracket respectively.

[0012] As a preferred technical solution of this application, an electromagnet and an iron plate are provided between the two telescopic rods, and the iron plate and the electromagnet are positioned opposite each other. The iron plate is fixedly connected to the mounting frame, and the electromagnet is fixedly connected to the mounting plate.

[0013] As a preferred technical solution of this application, two mounting blocks are fixedly connected to the blow molding machine body, the arc-shaped rack and the arc plate are slidably connected to the two mounting blocks respectively, the spur gear is rotatably connected to the mounting block and meshes with the arc-shaped rack, and a first motor is fixedly connected to the mounting block, and the output end of the first motor is coaxially fixed with the spur gear.

[0014] As a preferred technical solution of this application, a second motor is fixedly connected inside the mounting plate, and the output end of the second motor is coaxially fixed with the rotating rod.

[0015] (III) Beneficial Effects

[0016] The cleaning mechanism uses a roller brush to clean the mold cavity of the mold body. A spring pushes the roller brush close to the mold cavity of the mold body through a reset action. Then, the second motor is started, and the roller brush is driven to rotate under the action of the rotating rod and the first bevel gear assembly, thereby cleaning the mold cavity of the mold body and preventing dust or impurities from adhering to the surface of the cavity during the production process, which would affect the molding quality of the plastic products. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an easy-to-clean blow molding machine;

[0018] Figure 2 This is a schematic diagram of the installation of spur gears and curved racks in an easy-to-clean blow molding machine;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 A cross-sectional view of the mounting plate in an easy-to-clean blow molding machine;

[0021] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0022] Figure 6 for Figure 4 A magnified view of point C in the middle.

[0023] In the picture:

[0024] 1. Blow molding machine body; 2. Mold body; 3. Mounting plate; 4. Roller brush; 5. Mounting block; 6. First motor; 7. Spur gear; 8. Arc rack; 9. Arc plate; 10. Mounting bracket; 11. Electromagnet; 12. Spring; 13. Telescopic rod; 14. Rotating rod; 15. First connecting rod; 16. First bevel gear assembly; 17. Second connecting rod; 18. Second bevel gear assembly; 19. Iron sheet; 20. Second motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides an easy-to-clean blow molding machine, such as... Figures 1-6As shown, the technical solution includes a blow molding machine body 1 and a mold body 2. A mounting plate 3 is provided between the mold body 2 and the blow molding machine body 1. Mounting brackets 10 are symmetrically arranged on both sides of the mounting plate 3. A cleaning mechanism is connected to the mounting brackets 10. The cleaning mechanism includes a roller brush 4, two first connecting rods 15, a second connecting rod 17, and a second bevel gear assembly 18. The second bevel gear assembly 18 includes two meshing second bevel gears, which are coaxially fixed to the roller brush 4 and the second connecting rod 17, respectively. The roller brush 4 in the cleaning mechanism cleans the mold cavity of the mold body 2. To prevent dust or impurities from adhering to the surface of the mold cavity during production and affecting the molding quality of plastic products, a moving mechanism is provided between the mounting plate 3 and the blow molding machine body 1. The moving mechanism includes a spur gear 7, an arc rack 8, and an arc plate 9. The arc rack 8 and the arc plate 9 are fixedly connected to the mounting plate 3. The arc plate 9 in the moving mechanism drives the roller brush 4 to move between the mold body 2, which facilitates the cleaning of the mold cavity of the mold body 2. After cleaning, the arc plate 9 in the moving mechanism drives the roller brush 4 to move away from the mold body 2 to avoid affecting the blow molding of plastic products.

[0027] The roller brush 4 and the second connecting rod 17 are both rotatably connected to the mounting frame 10. The first connecting rod 15 is rotatably connected to the mounting plate 3. The second connecting rod 17 slides coaxially with the first connecting rod 15. A rotating rod 14 is rotatably connected inside the mounting plate 3. A first bevel gear assembly 16 is provided between the rotating rod 14 and the first connecting rod 15. The first bevel gear assembly 16 includes two meshing second bevel gears. The two second bevel gears are coaxially fixed with the rotating rod 14 and the first connecting rod 15, respectively. A second motor 20 is fixedly connected inside the mounting plate 3. The output end of the second motor 20 is coaxially fixed with the rotating rod 14.

[0028] When in use, the second motor 20 is started to drive the rotating rod 14 to rotate. The rotating rod 14 drives the first connecting rod 15 to rotate through the first bevel gear assembly 16. The rotating first connecting rod 15 drives the coaxial sliding second connecting rod 17 to rotate. The rotating second connecting rod 17 drives the roller brush 4 to rotate through the second bevel gear assembly 18, thereby achieving the effect of cleaning the mold cavity of the mold body 2.

[0029] Telescopic rods 13 are symmetrically fixed between the mounting bracket 10 and the mounting plate 3. Springs 12 are sleeved on the telescopic rods 13, and the two ends of the springs 12 are fixedly connected to the mounting plate 3 and the mounting bracket 10 respectively. An electromagnet 11 and an iron plate 19 are provided between the two telescopic rods 13, and the iron plate 19 and the electromagnet 11 are positioned opposite each other. The iron plate 19 is fixedly connected to the mounting bracket 10, and the electromagnet 11 is fixedly connected to the mounting plate 3.

[0030] When in use, the electromagnet 11 is energized, making it magnetic. The electromagnet 11 attracts the iron plate 19, which in turn drives the mounting bracket 10 to compress the spring 12 and bring it closer to the mounting plate 3, facilitating the removal of the roller brush 4 from between the mold bodies 2. When cleaning the mold cavity of the mold body 2, the electromagnet 11 is de-energized. At this time, the compressed spring 12 returns to its original state and pushes the mounting bracket 10 to move. The mounting bracket 10 then moves the roller brush 4 closer to the mold cavity of the mold body 2. It should be noted that the electromagnet 11 is a device that generates electromagnetic fields when energized. A conductive winding matching its power is wound around the outside of the iron core. This coil carrying current has magnetic properties like a magnet. The electromagnet 11 is existing technology and will not be elaborated on further here.

[0031] Two mounting blocks 5 are fixedly connected to the blow molding machine body 1. An arc-shaped rack 8 and an arc plate 9 are slidably connected to the two mounting blocks 5 respectively. A spur gear 7 is rotatably connected to the mounting block 5 and meshes with the arc-shaped rack 8. A first motor 6 is fixedly connected to the mounting block 5 and the output end of the first motor 6 is coaxially fixed with the spur gear 7.

[0032] When in use, the first motor 6 is started, driving the spur gear 7 to rotate. The rotating spur gear 7 drives the meshing arc-shaped rack 8 to move, which in turn drives the mounting plate 3 to move between the mold bodies 2, facilitating the cleaning of the mold cavity of the mold body 2. It should be noted that both the first motor 6 and the second motor 20 are connected to an external power supply via wires. The external power supply includes a battery for providing power to the first motor 6 and the second motor 20 and a control switch for controlling their start and stop. The external power supply is existing technology. The specific model and specifications of the first motor 6 and the second motor 20 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts existing technology in this field, so it will not be described in detail.

[0033] In summary: During operation, the first motor 6 is started, driving the spur gear 7 to rotate. The rotating spur gear 7 drives the meshing arc-shaped rack 8 to move, which in turn drives the mounting plate 3 to move, thus moving the mounting plate 3 between the mold bodies 2. Then, the electromagnet 11 is de-energized. At this time, the compressed spring 12 returns to its original state and pushes the mounting bracket 10 to move. The mounting bracket 10 drives the roller brush 4 to approach the mold cavity of the mold body 2. Finally, the second motor 20 is started, driving the rotating rod 14 to rotate. The rotating rod 14 drives the first connecting rod 15 to rotate through the first bevel gear assembly 16. The rotating first connecting rod 15 drives the coaxial sliding second connecting rod 17 to rotate. The rotating second connecting rod 17 drives the roller brush 4 to rotate through the second bevel gear assembly 18, thereby achieving the effect of cleaning the mold cavity of the mold body 2.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An easy-to-clean blow molding machine, comprising a blow molding machine body (1) and a mold body (2), characterized in that: A mounting plate (3) is provided between the mold body (2) and the blow molding machine body (1). Mounting brackets (10) are symmetrically provided on both sides of the mounting plate (3). A cleaning mechanism is connected to the mounting brackets (10). The cleaning mechanism includes a roller brush (4), two first connecting rods (15), a second connecting rod (17), and a second bevel gear assembly (18). The second bevel gear assembly (18) includes two meshing second bevel gears, and the two second bevel gears are coaxially fixed with the roller brush (4) and the second connecting rod (17), respectively. A moving mechanism is provided between the mounting plate (3) and the blow molding machine body (1). The moving mechanism includes a spur gear (7), an arc rack (8), and an arc plate (9), and the arc rack (8) and the arc plate (9) are both fixedly connected to the mounting plate (3).

2. The blow molding machine that is easy to clean according to claim 1, characterized in that: The roller brush (4) and the second connecting rod (17) are both rotatably connected to the mounting frame (10). The first connecting rod (15) is rotatably connected to the mounting plate (3). The second connecting rod (17) slides coaxially with the first connecting rod (15). A rotating rod (14) is rotatably connected inside the mounting plate (3). A first bevel gear assembly (16) is provided between the rotating rod (14) and the first connecting rod (15). The first bevel gear assembly (16) includes two meshing second bevel gears, and the two second bevel gears are coaxially fixed with the rotating rod (14) and the first connecting rod (15) respectively.

3. The blow molding machine that is easy to clean according to claim 1, characterized in that: A telescopic rod (13) is symmetrically fixed between the mounting bracket (10) and the mounting plate (3). A spring (12) is sleeved on the telescopic rod (13), and the two ends of the spring (12) are fixedly connected to the mounting plate (3) and the mounting bracket (10) respectively.

4. The blow molding machine that is easy to clean according to claim 3, characterized in that: An electromagnet (11) and an iron plate (19) are provided between the two telescopic rods (13), and the iron plate (19) and the electromagnet (11) are positioned opposite each other. The iron plate (19) is fixedly connected to the mounting bracket (10), and the electromagnet (11) is fixedly connected to the mounting plate (3).

5. The blow molding machine that is easy to clean according to claim 1, characterized in that: Two mounting blocks (5) are fixedly connected to the blow molding machine body (1). The arc-shaped rack (8) and arc-shaped plate (9) are slidably connected to the two mounting blocks (5). The spur gear (7) is rotatably connected to the mounting block (5) and meshes with the arc-shaped rack (8). A first motor (6) is fixedly connected to the mounting block (5), and the output end of the first motor (6) is coaxially fixed with the spur gear (7).

6. The blow molding machine that is easy to clean according to claim 2, characterized in that: The mounting plate (3) is fixedly connected to a second motor (20), and the output end of the second motor (20) is fixed coaxially with the rotating rod (14).

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