Positive and negative pressure blow molding machine
By designing a positive and negative pressure blow molding machine in a blow molding machine, the combination of sliders, tie rods and power groups can achieve rapid absorption and release of the mold during the molding process, solving the efficiency problem of manual removal after forming of the existing blow molding machine, which significantly improves the processing efficiency.
Patent Information
- Application Number
- CN202421593134.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The existing blow molding machine cannot be taken out directly after forming, and needs to be removed manually, which affects the processing efficiency.
A positive and negative pressure blow molding machine is designed, including a base, a negative pressure chamber and a molding assembly. Through the cooperation of sliders, pull rods and power sets, the molds can be quickly absorbed and released during the molding process, and the mold release is achieved quickly.
Through the cooperation of negative pressure and compressed air, the mold can be quickly switched between the concave and convex states, which significantly improves the rapid demolding efficiency of the molded parts and improves the overall processing efficiency.
Smart Images
Figure CN222875281U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of blow molding machines, in particular to a positive and negative pressure blow molding machine. Background Art
[0002] Blow molding machine is a plastic processing machine. After the liquid plastic is sprayed out, the wind force blown out by the machine is used to blow the plastic body to a certain shape of the mold cavity to make a product. After the blow molding machine is formed, it cannot be taken out directly and needs to be removed manually by the staff, which greatly affects the processing efficiency of the blow molding machine. Utility Model Content
[0003] The utility model aims at solving the deficiencies of the prior art and provides a positive and negative pressure blow molding machine.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positive and negative pressure blow molding machine, comprising a base, characterized in that: a negative pressure cavity is opened in the base, and a molding component is arranged in the negative pressure cavity;
[0005] The molding assembly includes a slider sliding in the negative pressure chamber, baffles are installed on both side end surfaces of the slider through springs, and pull rods are fixed to both side end surfaces of the slider. The pull rods penetrate the baffles and are slidably connected thereto, and then the pull rods and the slider are driven to slide left and right in the negative pressure chamber through a power group.
[0006] Optionally, a connecting plate is fixed to an end surface of the pull rod away from the sliding block, a sliding shaft is installed between the two connecting plates, the sliding shaft slides in the base, and the sliding shaft is located at the lower side of the negative pressure chamber.
[0007] Optionally, a screw block is fixed on the outer peripheral side of the sliding shaft, and the power group inside the base includes a motor, the motor is installed inside the base, and a bidirectional screw is connected to the motor, and the bidirectional screw cooperates with the screw block.
[0008] Optionally, a bidirectional thread is provided on the outer peripheral side of the bidirectional lead screw.
[0009] Optionally, a connecting cavity is provided on the top of the base, the connecting cavity is connected to the negative pressure cavity, a mold is fixed on the connecting cavity, and the mold has two states: convex and concave.
[0010] In summary, compared with the prior art, the present invention has the following beneficial effects:
[0011] 1. Due to the setting of the molding component, the gas in the connecting cavity can be extracted through the setting of the slider and the mold to form a negative pressure inside, so that the mold can be sucked into a concave state, and then blow molding can be carried out in the mold. After the molding is completed, the bidirectional screw continues to rotate, so that the negative pressure state in the connecting cavity gradually disappears, and then the compressed air continues to make the mold convex, and the molded part in the mold is lifted up for rapid demolding. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional diagram of the utility model.
[0013] Figure 2 It is a cross-sectional view of the utility model.
[0014] 10. Base; 11. Mold; 12. Connecting cavity; 13. Negative pressure cavity; 14. Slider; 15. Baffle; 16. Pull rod; 17. Connecting plate; 18. Sliding shaft; 19. Screw block; 20. Motor; 21. Bidirectional lead screw. DETAILED DESCRIPTION
[0015] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.
[0016] As shown in Figure 1-2, a positive and negative pressure blow molding machine includes a base 10, a connecting cavity 12 is opened on the top of the base 10, the connecting cavity 12 is connected with the negative pressure cavity 13, a mold 11 is fixed on the connecting cavity 12, the mold 11 has two states of convex and concave, the mold 11 has a small elasticity, so that it can complete the two states of convex and concave under the action of air pressure, a negative pressure cavity 13 is opened in the base 10, a molding assembly is arranged in the negative pressure cavity 13, the inner wall of the negative pressure cavity 13 is also provided with an annular convex block, the molding assembly includes a slider 14 sliding in the negative pressure cavity 13, baffles 15 are installed on both side end surfaces of the slider 14 through springs, and pull rods 16 are fixed on both side end surfaces of the slider 14, the pull rods 16 pass through the baffles 15 and are slidably connected thereto, and then the pull rods 16 and the slider 14 are driven by the power group to slide left and right in the negative pressure cavity 13.
[0017] A connecting plate 17 is fixed to the end face of the pull rod 16 away from the slider 14, and a sliding shaft 18 is installed between the two connecting plates 17. The sliding shaft 18 slides in the base 10. The sliding shaft 18 is located on the lower side of the negative pressure chamber 13. A screw block 19 is fixed to the outer peripheral side of the sliding shaft 18. The power group inside the base 10 includes a motor 20, which is installed inside the base 10. A bidirectional lead screw 21 is connected to the motor 20, which cooperates with the screw block 19, and a bidirectional thread is provided on the outer peripheral side of the bidirectional lead screw 21.
[0018] When in use, in the initial state, the slider 14 is in the position of the connecting chamber 12, and the mold 11 is in a convex state. When blow molding is required, the motor 20 is started to rotate the bidirectional screw 21, thereby driving the sliding shaft 18 to slide left and right through the screw block 19. The sliding of the sliding shaft 18 can drive the molding assembly to slide through the connecting plate 17. During the sliding process of the molding assembly, the baffle 15 will be abutted by the convex block in the negative pressure chamber 13, and then the slider 14 will continue to stretch the spring to slide. At this time, the gas in the connecting chamber 12 will be extracted to form a negative pressure inside, so that the mold 11 can be sucked into a concave state, and then blow molding can be performed in the mold 11. After the molding is completed, the bidirectional screw 21 continues to rotate, and when the screw block 19 moves to the maximum distance, it will automatically move in the opposite direction, so that the slider 14 moves close to the connecting chamber 12, and the negative pressure state in the connecting chamber 12 gradually disappears, and then the compressed air continues to make the mold 11 convex, and the molded part in the mold 11 is lifted up for rapid demoulding.
[0019] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
Claims
1. A positive and negative pressure blow molding machine, comprising a base (10), characterized in that: A negative pressure chamber (13) is provided in the base (10), and a molding component is provided in the negative pressure chamber (13); The molding assembly includes a slider (14) sliding in the negative pressure chamber (13), baffles (15) are installed on both side end surfaces of the slider (14) through springs, and pull rods (16) are also fixed to both side end surfaces of the slider (14), the pull rods (16) pass through the baffles (15) and are slidably connected thereto, and then the pull rods (16) and the slider (14) are driven by a power group to slide left and right in the negative pressure chamber (13).
2. A positive and negative pressure blow molding machine according to claim 1, characterized in that: A connecting plate (17) is fixed to the end surface of one side of the pull rod (16) away from the sliding block (14), and a sliding shaft (18) is installed between the two connecting plates (17). The sliding shaft (18) slides in the base (10), and the sliding shaft (18) is located at the lower side of the negative pressure chamber (13).
3. A positive and negative pressure blow molding machine according to claim 2, characterized in that: A screw block (19) is fixed on the outer peripheral side of the sliding shaft (18), and the power group inside the base (10) includes a motor (20). The motor (20) is installed inside the base (10), and a bidirectional screw (21) is connected to the motor (20), and the bidirectional screw (21) cooperates with the screw block (19).
4. A positive and negative pressure blow molding machine according to claim 3, characterized in that: The outer peripheral side of the bidirectional lead screw (21) is provided with bidirectional threads.
5. The positive and negative pressure blow molding machine according to claim 1, characterized in that: A connecting cavity (12) is provided on the top of the base (10), the connecting cavity (12) is connected to the negative pressure cavity (13), a mold (11) is fixed on the connecting cavity (12), and the mold (11) has two states: convex and concave.