Beverage bottle blow molding machine

Abstract

The utility model relates to the field of blow molding machines, and discloses a beverage bottle blow molding machine which comprises a blow molding machine, the blow molding machine comprises a machine body, a guide groove is formed in the middle of the top end of the machine body, a mold is connected in the guide groove in a sliding mode, and hydraulic rods are fixedly connected to the middles of the ends, away from each other, of the mold. The other ends of the hydraulic rods are fixedly connected to the inner side of a fixing frame, the fixing frame is fixedly connected to the outer side of the top end of the machine body, the two ends of the fixing frame penetrate through and are slidably connected with a plurality of guide rods, the ends, close to each other, of the guide rods are fixedly connected with the mold, and lubricating mechanisms are arranged on the outer sides of the mold cavities. According to the beverage bottle blow molding machine disclosed by the utility model, the inner wall of the mold cavity can be protected through the oil film, the beverage bottle can be conveniently separated from the mold cavity during mold opening, the subsequent mold opening work is facilitated, the beverage bottle is prevented from being adhered to the inner wall of the mold cavity, and the actual use is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of blow molding machines, and particularly relates to a blow molding machine for beverage bottles. Background Technique

[0002] Beverage bottles are common items in people's lives and are usually disposable products used to hold beverages. Most common beverage bottles are made of oriented polypropylene (OPP) or polyethylene terephthalate (PET). Usually, they are made by using injection molds. During preparation, a preform in the shape of a bottomed cylinder made of the corresponding material is heated to a temperature at which a stretching effect can be exhibited, and in this state, a blow molding device is used to perform stretch blow molding. Through the mold cavity of the mold, it is formed into a predetermined shape. However, when the beverage bottle is demolded at the end of the blow molding production, sometimes the beverage bottle will adhere to the mold, resulting in the occasional phenomenon that the beverage bottle cannot be demolded, reducing the efficiency of blow molding production and being unfavorable for actual use. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a blow molding machine for beverage bottles, which can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A blow molding machine for beverage bottles includes a blow molding machine. The blow molding machine includes a machine body. A guide groove is opened in the middle of the top of the machine body. A mold is slidably connected inside the guide groove. Hydraulic rods are fixedly connected to the middle of the opposite ends of the mold. The other ends of the hydraulic rods are fixedly connected to the inside of a fixed frame. The fixed frame is fixedly connected to the outside of the top of the machine body. A plurality of guide rods penetrate and are slidably connected to both ends of the fixed frame. The closer ends of the guide rods are fixedly connected to the mold. A plurality of mold cavities are opened in the middle of the closer ends of the mold. Blow molding ports are clamped on the tops of the mold cavities. The blow molding ports are fixedly connected to the inner bottom of the fixed frame. Beverage bottles are arranged at the bottoms of the blow molding ports. The beverage bottles are all arranged inside the mold cavities. Lubricating mechanisms are arranged outside the mold cavities.

[0006] Preferably, the lubricating mechanism includes cavities which are arranged outside the mold cavities. A plurality of oil outlet holes are arranged on one side of each cavity close to the mold cavity. Each cavity is communicated with the inside of the mold cavity through the oil outlet holes. Through holes are formed in the middle of the bottom ends of the mold cavities. Limiting cavities are arranged at the bottoms of the through holes. Exhaust holes I are arranged at the bottoms of the limiting cavities. The exhaust holes I penetrate through the bottom end of the mold. Sealing covers are slidably connected to the upper parts of the limiting cavities. The bottom ends of the sealing covers are fixedly connected with first return springs. The bottom ends of the first return springs are fixedly connected to the inner bottoms of the limiting cavities. Uniformly distributed ventilation channels are arranged in the middle-upper parts of the limiting cavities. The other ends of the ventilation channels are communicated with air outlet cavities. Rotating plates are rotatably connected to one side of the inner bottoms of the air outlet cavities close to the mold cavity. A plurality of air inlet channels are formed in one side of each air outlet cavity close to the mold cavity.

[0007] Preferably, a second return spring is fixedly connected to one side of the top of each rotating plate. The other end of the second return spring is fixedly connected to the side wall of the air outlet cavity.

[0008] Preferably, exhaust holes II are formed in the top parts of the air outlet cavities. The exhaust holes II penetrate through the top of the mold.

[0009] Preferably, the other ends of the air inlet channels far away from the air outlet cavities are communicated with the cavities. Oil-soaked cotton columns are arranged inside the cavities.

[0010] Preferably, oil inlet holes are formed in one side of the upper parts of the cavities. The other ends of the oil inlet holes penetrate through the top end of the mold.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] During blow molding, when the preform expands, the air in the mold cavity will be squeezed out through the through holes, so that the sealing cover will be pressed down under the action of air pressure. When the sealing cover is pressed down, the ventilation channels on the side wall of the limiting cavity will be exposed. The gas will be discharged into the air outlet cavity through the ventilation channels. The suddenly increased air pressure when the gas enters the inner wall of the air outlet cavity will press the rotating plate, causing the rotating plate to deflect. Thus, part of the gas on the other side of the rotating plate can be squeezed into the cavity through the air inlet channels. When the gas enters the cavity, it will press the oil-soaked cotton column inside the cavity, so that the lubricating oil inside the oil-soaked cotton column will be extruded. The extruded lubricating oil will penetrate into the mold cavity through the oil outlet holes, so as to form an oil film between the beverage bottle and the mold cavity. The oil film can protect the inner wall of the mold cavity and facilitate the separation of the beverage bottle from the mold cavity during mold opening, which is beneficial to the subsequent mold opening work, avoids the adhesion between the beverage bottle and the inner wall of the mold cavity, and is beneficial to actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front perspective view of a beverage bottle blow molding machine of the utility model;

[0014] Figure 2 This is a schematic structural diagram of a blow molding machine for beverage bottles of the present utility model;

[0015] Figure 3 This is a partial structural schematic diagram of a blow molding machine for beverage bottles of the present utility model;

[0016] Figure 4 is Figure 3 the enlarged view at position A in

[0017] Figure 5 is Figure 3 the enlarged view at position B in

[0018] In the figure: 1. Blow molding machine; 101. Machine body; 102. Guide rod; 103. Hydraulic rod; 104. Blowing port; 105. Fixed frame; 106. Mold; 107. Guide groove; 108. Mold cavity; 109. Beverage bottle; 2. Lubricating mechanism; 201. Oil outlet hole; 202. Cavity; 203. Oil inlet hole; 204. Air inlet channel; 205. Rotating plate; 206. Oil-soaked cotton column; 207. Air outlet cavity; 208. Sealing cover; 209. First return spring; 210. First exhaust hole; 211. Through hole; 212. Limiting cavity; 213. Second return spring; 214. Second exhaust hole; 215. Ventilation channel. Specific embodiments

[0019] To make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] As Figures 1-5 shown, a blow molding machine for beverage bottles includes a blow molding machine 1. The blow molding machine 1 includes a machine body 101. A guide groove 107 is provided in the middle of the top of the machine body 101. A mold 106 is slidably connected inside the guide groove 107. Hydraulic rods 103 are fixedly connected to the middle of the opposite ends of the mold 106. The other ends of the hydraulic rods 103 are fixedly connected to the inside of a fixed frame 105. The fixed frame 105 is fixedly connected to the outside of the top of the machine body 101. A plurality of guide rods 102 penetrate and are slidably connected to both ends of the fixed frame 105. The closer ends of the guide rods 102 are fixedly connected to the mold 106. A plurality of mold cavities 108 are provided in the middle of the closer ends of the mold 106. Blowing ports 104 are engaged with the tops of the mold cavities 108. The blowing ports 104 are fixedly connected to the inner bottom of the fixed frame 105. Beverage bottles 109 are provided at the bottoms of the blowing ports 104. The beverage bottles 109 are all arranged inside the mold cavities 108. Lubricating mechanisms 2 are arranged outside the mold cavities 108.

[0021] In this embodiment, the blow molding machine 1 includes a fuselage 101. A guiding groove 107 is formed in the middle of the top end of the fuselage 101. A mold 106 is slidably connected inside the guiding groove 107. At the middle of the opposite ends of the mold 106, hydraulic rods 103 are fixedly connected. The other ends of the hydraulic rods 103 are fixedly connected to the inner side of a fixing frame 105. The fixing frame 105 is fixedly connected to the outer side of the top end of the fuselage 101. A plurality of guiding rods 102 penetrate through and are slidably connected to both ends of the fixing frame 105. The closer ends of the guiding rods 102 are fixedly connected to the mold 106. At the middle of the closer ends of the mold 106, a plurality of mold cavities 108 are formed. Blow molding ports 104 are engaged with the tops of the mold cavities 108. The blow molding ports 104 are fixedly connected to the inner bottom of the fixing frame 105. Beverage bottles 109 are arranged at the bottoms of the blow molding ports 104. The beverage bottles 109 are arranged inside the mold cavities 108. Lubricating mechanisms 2 are arranged outside the mold cavities 108.

[0022] Specifically, when manufacturing the beverage bottles 109, people can start the hydraulic rods 103. The elongation of the hydraulic rods 103 can drive the mold 106 to slide inside the guiding groove 107. The guiding groove 107 and the guiding rods 102 can provide guiding and limiting for the mold 106 when the mold 106 is opened and closed. The mold 106 can clamp the blow molding ports 104 and the preform to be blow molded into the mold cavities 108. At this time, the blow molding machine 1 starts to work, and the blow molding ports 104 start to blow out air, so as to evenly expand the preform, enabling the outer wall of the preform to closely adhere to the inner wall of the mold cavity 108, so that the preform can take the shape of the mold cavity 108, realizing the shaping of the preform and completing the preparation work of the beverage bottles 109.

[0023] In this embodiment, the lubricating mechanism 2 includes a cavity 202, which is arranged outside the mold cavity 108. A plurality of oil outlet holes 201 are provided on one side of the cavity 202 close to the mold cavity 108. The cavity 202 is connected to the inside of the mold cavity 108 through the oil outlet holes 201. Through holes 211 are provided in the middle of the bottom end of the mold cavity 108. A limiting cavity 212 is provided at the bottom of the through hole 211. An exhaust hole 210 is provided at the bottom of the limiting cavity 212, and the exhaust hole 210 penetrates through the bottom end of the mold 106. A sealing cover 208 is slidably connected to the upper part of the limiting cavity 212. A first return spring 209 is fixedly connected to the bottom end of the sealing cover 208, and the bottom end of the first return spring 209 is fixedly connected to the inner bottom of the limiting cavity 212. Uniformly distributed air vent channels 215 are provided in the upper middle part of the limiting cavity 212. The other end of the air vent channel 215 is communicated with an air outlet cavity 207. A rotating plate 205 is rotatably connected to one side of the inner bottom of the air outlet cavity 207 close to the mold cavity 108. A second return spring 213 is fixedly connected to one side of the top of the rotating plate 205, and the other end of the second return spring 213 is fixedly connected to the side wall of the air outlet cavity 207. An exhaust hole 214 is provided at the top of the air outlet cavity 207, and the exhaust hole 214 penetrates through the top of the mold 106. A plurality of air inlet channels 204 are provided on one side of the air outlet cavity 207 close to the mold cavity 108. The end of the air inlet channel 204 far from the air outlet cavity 207 is communicated with the cavity 202. An oil-soaked cotton column 206 is arranged inside the cavity 202. An oil inlet hole 203 is provided on one side of the upper part of the cavity 202, and the other end of the oil inlet hole 203 penetrates through the top end of the mold 106.

[0024] Specifically, during blow molding, when the preform expands, the air in the mold cavity 108 will be squeezed out through the through hole 211, so that the sealing cover 208 will be pressed down under the action of air pressure. When the sealing cover 208 is pressed down, the air vent channels 215 on the side wall of the limiting cavity 212 will be exposed, and the gas will be discharged into the air outlet cavity 207 through the air vent channels 215. The suddenly increased air pressure when the gas enters the inner wall of the air outlet cavity 207 will press the rotating plate 205, causing the rotating plate 205 to deflect, so that part of the gas on the other side of the rotating plate 205 can be squeezed into the cavity 202 through the air inlet channel 204. When the gas enters the cavity 202, it will press the oil-soaked cotton column 206 inside the cavity 202, so that the lubricating oil inside the oil-soaked cotton column 206 will be squeezed out. The squeezed lubricating oil will penetrate into the mold cavity 108 through the oil outlet hole 201, so that an oil film can be formed between the beverage bottle 109 and the mold cavity 108. The oil film can protect the inner wall of the mold cavity 108 and facilitate the separation of the beverage bottle 109 from the mold cavity 108 during mold opening, which is beneficial to the subsequent mold opening work and avoids the adhesion between the beverage bottle 109 and the inner wall of the mold cavity 108, which is beneficial to actual use.

[0025] Working principle:

[0026] When manufacturing the beverage bottle 109, people can start the hydraulic rod 103. The elongation of the hydraulic rod 103 can drive the mold 106 to slide inside the guide groove 107. The guide groove 107 and the guide rod 102 can provide guidance and limit for the mold 106 when the mold 106 is opened and closed. Through the mold 106, the blow molding port 104 and the preform to be blow molded can be clamped into the mold cavity 108. At this time, the blow molding machine 1 starts to work, and the blow molding port 104 starts to blow out air, so as to evenly expand the preform, making the outer wall of the preform closely adhere to the inner wall of the mold cavity 108, so that the preform can take the shape of the mold cavity 108, realizing the shaping of the preform and completing the preparation work of the beverage bottle 109. During blow molding, when the preform expands, it will squeeze out the air in the mold cavity 108 through the through hole 211, so that the cap 208 will be pressed down under the action of air pressure. When the cap 208 is pressed down, the air vent passages 215 on the side wall of the limit cavity 212 will be exposed, and the gas will be discharged into the air outlet cavity 207 through the air vent passages 215. The suddenly increased air pressure after the gas enters the inner wall of the air outlet cavity 207 will oppress the rotating plate 205, causing the rotating plate 205 to deflect, so that part of the gas on the other side of the rotating plate 205 can be squeezed into the cavity 202 through the air inlet passage 204. After the gas enters the cavity 202, it will oppress the oil-soaked cotton column 206 inside the cavity 202, so that the lubricating oil inside the oil-soaked cotton column 206 will be squeezed out. The squeezed lubricating oil will penetrate into the mold cavity 108 through the oil outlet hole 201, so as to form an oil film between the beverage bottle 109 and the mold cavity 108, and the inner wall of the mold cavity 108 can be protected through the oil film.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A beverage bottle blow molding machine, comprising a blow molding machine (1), characterized in that: The blow molding machine (1) comprises a body (101), a guide groove (107) is provided in the middle of the top of the body (101), a mold (106) is slidably connected inside the guide groove (107), a hydraulic rod (103) is fixedly connected to the middle of one end away from the mold (106), the other end of the hydraulic rod (103) is fixedly connected to the inner side of a fixing frame (105), the fixing frame (105) is fixedly connected to the outer side of the top of the body (101), and a plurality of guide rods (102) are penetrated and slidably connected at both ends of the fixing frame (105). ), the ends of the guide rods (102) that are close to each other are fixedly connected to the mold (106), a plurality of mold cavities (108) are opened in the middle of the ends of the mold (106) that are close to each other, a blow molding port (104) is clamped at the top of each mold cavity (108), and each blow molding port (104) is fixedly connected to the bottom of a fixing frame (105), a beverage bottle (109) is arranged at the bottom of each blow molding port (104), and each beverage bottle (109) is arranged inside the mold cavity (108), and a lubrication mechanism (2) is arranged on the outside of each mold cavity (108).

2. A beverage bottle blow molding machine according to claim 1, characterized in that: The lubricating mechanism (2) comprises a cavity (202), the cavity (202) being arranged outside the mold cavity (108), a plurality of oil outlet holes (201) being arranged on a side of the cavity (202) close to the mold cavity (108), the cavity (202) being connected to the interior of the mold cavity (108) through the oil outlet holes (201), a through hole (211) being opened in the middle of the bottom end of the mold cavity (108), a limiting cavity (212) being arranged at the bottom of the through hole (211), an exhaust hole (210) being arranged at the bottom of the limiting cavity (212), the exhaust hole (210) penetrating the bottom end of the mold (106), the limiting cavity (212) being arranged at the bottom of the limiting cavity (212), the exhaust hole (210) penetrating the bottom end of the mold (106), the limiting cavity (211) being arranged at the bottom of the limiting cavity (212), the exhaust hole (210) being arranged at the bottom of the limiting cavity (21 ... A cover (208) is slidably connected to the upper part of the inner part of the limit cavity (212), and a return spring (209) is fixedly connected to the bottom end of the cover (208), and the bottom end of the return spring (209) is fixedly connected to the bottom of the limit cavity (212). The upper and middle parts of the limit cavity (212) are provided with evenly distributed ventilation channels (215), and the other ends of the ventilation channels (215) are connected to the air outlet cavity (207). The bottom of the air outlet cavity (207) is rotatably connected to a rotating plate (205) on one side close to the mold cavity (108), and a plurality of air inlet channels (204) are provided on the side of the air outlet cavity (207) close to the mold cavity (108).

3. A beverage bottle blow molding machine according to claim 2, characterized in that: One side of the top of the rotating plate (205) is fixedly connected to a second return spring (213), and the other end of the second return spring (213) is fixedly connected to the side wall of the air outlet cavity (207).

4. A beverage bottle blow molding machine according to claim 2, characterized in that: The top of the air outlet cavity (207) is provided with a second exhaust hole (214), and the second exhaust hole (214) passes through the top of the mold (106).

5. A beverage bottle blow molding machine according to claim 2, characterized in that: One end of the air inlet channel (204) away from the air outlet cavity (207) is connected to the cavity (202), and an oil-soaked cotton column (206) is arranged inside the cavity (202).

6. A beverage bottle blow molding machine according to claim 2, characterized in that: An oil inlet hole (203) is provided on one side of the upper portion of the cavity (202), and the other end of the oil inlet hole (203) passes through the top of the mold (106).

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