Blow molding equipment for plastic lubricating oil bottles

Abstract

The present invention relates to blow molding equipment, and in particular to a blow molding equipment for a plastic lubricating oil bottle. The purpose of the present invention is to provide a blow molding equipment for a plastic lubricating oil bottle whose wall thickness of an extruded blank can be precisely controlled. The technical solution is: a blow molding equipment for a plastic lubricating oil bottle, comprising a mounting frame, a first electric slide rail is fixedly connected to the right side of the mounting frame, a moving frame is fixedly connected to the moving part of the first electric slide rail, and an axle frame is fixedly connected to the right side of the moving frame. The present invention places the blank in a closing device, performs centrifugal motion on the blank by a centrifugal device, and adjusts the angle of the blank by a posture adjustment device. This allows the blank to change its posture after extrusion to reduce the effect of gravity on its elongation, and also allows the blank to balance its wall thickness under the action of centrifugation, so that the blank has a uniform wall thickness while waiting for mold closing and blow molding.

Description

Technical Field

[0001] The invention relates to blow molding equipment, in particular to a blow molding equipment for a plastic lubricating oil bottle. Background Art

[0002] When producing plastic lubricating oil bottles, blow molding process is mostly used for production. When the existing blow molding machine is producing plastic lubricating oil bottles, a blank extruder is required to extrude the blank, and the blank is a ring-shaped cylindrical structure. After the blank is extruded, the mold of the blow molding machine will move to the front and back sides of the blank, and then the mold is closed to wrap the blank, and then it moves to the blow machine for blow molding; and during the operation of the current blow molding machine, the blank extruded by the blank extruder needs to wait for the operation of the mold, and in this process the blank is easily elongated by the influence of gravity, and the elongated area is concentrated in the middle of the blank, that is, if the blank is affected by gravity, the blank will be thin in the middle and thicker on the upper and lower sides. The phenomenon that the blank material expands from the middle to the outside when the mold is inflated by air, so this type of blank material affected by gravity is very easy to break or release pressure after blow molding; and for the blank material of the plastic lubricant bottle with a non-center-symmetrical layout, the blank material needs to be at the bottle mouth of the plastic lubricant bottle mold, and the distance between the expansion center of the blank material and the handle of the plastic lubricant bottle mold is longer. When the blank material is blow-molded and expanded, more plastic in this area needs to be pulled, resulting in the wall thickness of this area after blow molding being thinner than the other side. This area is also very easy to break during blow molding, resulting in an increase in the scrap rate; as mentioned above, all of these are disadvantages caused by the difficulty in controlling the wall thickness after the blank material is extruded.

[0003] Therefore, it is necessary to develop a blow molding device for a plastic lubricating oil bottle to solve the above problems. Summary of the invention

[0004] In order to overcome the shortcomings of current blow molding machines that the billet is easily elongated due to the influence of gravity after extrusion and the billet wall thickness is difficult to control, the purpose of the present invention is to provide a blow molding device for plastic lubricating oil bottles with accurately controlled wall thickness of the extruded billet.

[0005] The technical solution is: a blow molding device for a plastic lubricating oil bottle, comprising a mounting frame, a first electric slide rail is fixedly connected to the right side of the mounting frame, a moving frame is fixedly connected to the moving part of the first electric slide rail, an axis frame is fixedly connected to the right side of the moving frame, a rotating frame is rotatably connected between the axis frames, and a vertical frame is fixedly connected to the upper side of the rotating frame in the front and rear directions; a closing device is provided between the upper sides of the vertical frames, and the closing device performs closing and opening actions; a centrifugal device is provided at the closing device, and the centrifugal device is used to make the wrapping area of ​​the closing device rotate; a posture adjustment device is provided at the axis frame, and the posture adjustment device is used to adjust the angle of the rotating frame; a movable clamp is provided on the upper side of the wrapping area of ​​the closing device, and the movable clamp is used to clamp the upper side position of the blank in the wrapping area of ​​the closing device; a fixed clamp is provided on the upper side of the mounting frame, and the fixed clamp is used to clamp the blank after the wall thickness is balanced by centrifugal movement for subsequent mold combination and blow molding.

[0006] Preferably, the closing device includes a second electric slide rail, which is fixedly connected to the vertical frame respectively, and the inner side of the moving part of the second electric slide rail is fixedly connected to a closing frame, and the closing frame is fixedly connected to an arc-shaped slide rail, and the inner side of the moving part of the arc-shaped slide rail is fixedly connected to a fixed frame, and the inner side of the fixed frame is fixedly connected to a wrapping layer, and the movable clamps are respectively installed at the upper side of the wrapping layer.

[0007] Preferably, the centrifugal device includes a first arc-shaped toothed belt, which is fixedly connected to the upper outer side of the fixed frame, and the left side of the folding frame is fixedly connected to a first drive motor, and the output shaft of the first drive motor is connected to a first gear, and the first gear cooperates with adjacent first arc-shaped toothed belts.

[0008] Preferably, the posture adjustment device includes a second arc-shaped toothed belt, which is fixedly connected to the lower side of the rotating frame, a second drive motor is fixedly connected to the rear side of the axis frame, a second gear is fixedly connected to the output shaft of the second drive motor, and the second gear cooperates with the second arc-shaped toothed belt.

[0009] Preferably, the movable clamp comprises a third electric slide rail, and the third electric slide rail is respectively fixedly connected to the middle part of the upper side of the wrapping layer, and movable clamps are fixedly connected to the moving parts of the third electric slide rail.

[0010] Preferably, the fixing fixture includes an extension frame, the extension frame is fixedly connected to the upper side of the mounting frame, the upper side of the extension frame is fixedly connected to a mounting ring, the front and rear sides of the mounting ring are fixedly connected to a fourth electric slide rail, and the moving parts of the fourth electric slide rail are fixedly connected to fixing clips.

[0011] Preferably, it also includes a heating rod, which is fixedly connected to the middle position of the upper side of the rotating frame.

[0012] Preferably, it also includes a heat preservation device, which is arranged on the outside of the wrapping layer. The heat preservation device is used to further ensure the temperature of the blank before waiting for mold closing and blow molding. The outside of the wrapping layer is fixedly connected to the heat preservation layer, and the inside of the heat preservation layer is fixedly connected to the electric heating plate.

[0013] Beneficial effects: 1. The present invention places the blank in a closing device, performs centrifugal motion on the blank through a centrifugal device, and uses a posture adjustment device to adjust the angle of the blank. This allows the blank to change its posture after extrusion to reduce the effect of gravity on its elongation, and can also balance the wall thickness of the blank under the action of centrifugation, so that the blank has a uniform wall thickness when waiting for mold closing and blow molding.

[0014] 2. The present invention controls the centrifugal device to drive the closing device to perform various types of rotations, so that the blank has a relatively higher wall thickness in a certain part, so as to be suitable for a non-center-symmetrical lubricating oil bottle.

[0015] 3. The present invention uses a heating rod and a heat preservation device to control the temperature of the blank in the wrapping layer, thereby preventing the blank from losing temperature while waiting for mold closing and blow molding, and preventing the blank fluidity from decreasing during cooling and affecting the blow molding yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the posture adjustment device part of the present invention.

[0020] Figure 5 It is a schematic diagram of the first three-dimensional structure of the closing device part of the present invention.

[0021] Figure 6 It is a schematic diagram of a second three-dimensional structure of the closing device part of the present invention.

[0022] Figure 7 It is a schematic diagram of the first three-dimensional structure of the centrifugal device part of the present invention.

[0023] Figure 8 It is a third stereoscopic structural schematic diagram of the closing device part of the present invention.

[0024] Fig. 9 It is a schematic diagram of the first three-dimensional structure of the heat preservation device part of the present invention.

[0025] Fig.10 It is a schematic diagram of the second three-dimensional structure of the heat preservation device part of the present invention.

[0026] Fig.11 It is a schematic diagram of the second three-dimensional structure of the centrifugal device part of the present invention.

[0027] Fig.12 It is a three-dimensional structural schematic diagram of the folding frame part of the present invention.

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure of the fixing fixture part of the present invention.

[0029] Fig.14 It is a three-dimensional structural schematic diagram of the movable clip and the fixed clip of the present invention.

[0030] Fig.15 It is a three-dimensional structural schematic diagram of the present invention and the mold assembly.

[0031] Among them, the above-mentioned drawings include the following drawing marks: 1-mounting frame, 2-first electric slide rail, 3-moving frame, 4-axis frame, 5-rotating frame, 6-standing frame, 7-closing device, 8-centrifugal device, 9-posture adjustment device, 10-movable clamp, 11-fixed clamp, 71-second electric slide rail, 72-closing frame, 73-arc slide rail, 74-fixed frame, 75-wrapping layer, 81-first arc-shaped toothed belt, 82-first drive motor, 83-first gear, 91-second arc-shaped toothed belt, 92-second drive motor, 93-second gear, 101-third electric slide rail, 102-movable clamp, 111-extension frame, 112-mounting ring, 113-fourth electric slide rail, 114-fixed clamp, 12-heating rod, 13-insulation device, 121-insulation layer, 122-electric heating plate. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0033] Embodiment 1, as Figure 1 , Figure 2 , Figure 3 and Fig.15As shown, a blow molding device for a plastic lubricating oil bottle includes a mounting frame 1, a first electric slide rail 2, a moving frame 3, an axis frame 4, a rotating frame 5, a vertical frame 6, a closing device 7, a centrifugal device 8, a posture adjustment device 9, a movable clamp 10 and a fixed clamp 11. The mounting frame 1 is fixedly connected to the first electric slide rail 2 on the right side. The first electric slide rail 2 is vertical and servo-controlled. The moving frame 3 is fixedly connected to the moving part of the first electric slide rail 2. The moving frame 3 is fixedly connected to the axis frame 4 on the right side. The axis frame 4 is a U-shaped structure facing the right side. The rotating frame 5 is rotatably connected between the axis frames 4. The vertical frame 6 is fixedly connected to the upper side of the rotating frame 5 in the front and rear directions. A closing device 7 is provided between the upper sides of the vertical frames 6. The closing device 7 performs closing and opening actions to wrap the blank for blow molding. The closing device 7 is provided with a centrifugal device 8. The centrifugal device 8 It is used to make the wrapping area of ​​the closing device 7 rotate, so that the blank in the wrapped area of ​​the closing device 7 performs centrifugal movement, so that the blank is balanced and maintains uniform wall thickness through centrifugal action. A posture adjustment device 9 is provided at the shaft frame 4, and the posture adjustment device 9 is used to adjust the angle of the rotating frame 5 to change the angle of the closing device 7, so that the blank wrapped in the closing device 7 reduces the influence of gravity. A movable clamp 10 is provided on the upper side of the wrapping area of ​​the closing device 7. The movable clamp 10 is used to clamp the upper side position of the blank in the wrapping area of ​​the closing device 7. A fixed clamp 11 is provided on the upper side of the mounting frame 1, and the clamping center of the fixed clamp 11 is on the same vertical line as the clamping center of the movable clamp 10. The fixed clamp 11 is used to clamp the blank after the wall thickness is balanced by centrifugal movement for subsequent mold combination and blow molding, and the clamping directions of the fixed clamp 11 and the movable clamp 10 are misaligned with each other.

[0034] When blow-molding a plastic lubricating oil bottle, the blow-molding equipment of the plastic lubricating oil bottle can be installed on the inner wall of the left side of the blow-molding machine main machine through the mounting frame 1, that is, the closing device 7 is located below the lower outlet of the blow-molding machine blank, and the closing center of the closing device 7, the clamping center of the fixed clamp 11, the clamping center of the movable clamp 10 and the blow-molding machine blank extrusion outlet are located on the same vertical movement line; then the blow-molding equipment of the plastic lubricating oil bottle can be used to make the blank uniform in wall thickness, and the first electric slide rail 2 can be controlled to drive the movable frame 3 to move upward through its moving part, so that the closing device 7 drives the movable clamp 10 to move upward to The movable clamp 10 is placed under the fixed clamp 11 to make it contact with the fixed clamp 11. At this time, the fixed clamp 11 and the movable clamp 10 are controlled not to be in a clamping state, and the closing device 7 is controlled to be in a closed state. Then, the blank extrusion port of the blow molding machine can be controlled to extrude the blank of the plastic lubricating oil bottle. After the blank is extruded, it will pass through the fixed clamp 11 and the movable clamp 10 into the wrapping area of ​​the closing device 7. After the set blank length is extruded, the movable clamp 10 can be controlled to run, so that the movable clamp 10 clamps and fixes the blank. Then, the cutting machine at the blank extrusion port of the extruder can be controlled to cut off the blank segment above the fixed clamp 11. When the blank for blow molding of the plastic lubricating oil bottle is in the closing device 7; at this time, the first electric slide rail 2 can be controlled to drive the closing device 7 to move downward through its moving part to reset. After the reset is completed, the posture adjustment device 9 can be controlled to operate, so that the posture adjustment device 9 drives the rotating frame 5 to rotate, so that the closing device 7 is in a lying state, and the blank in the closing device 7 is not pulled by the gravity. The side length, at the same time, the centrifugal device 8 can be started, so that the centrifugal device 8 drives the wrapping area of ​​the closing device 7 to rotate, so that the closing device 7 drives the blank in its wrapping area to rotate and perform centrifugal movement, so that the blank balances the wall under the centrifugal action. Thick; and for blanks with different fluidities, in order to make the blanks with different fluidities have uniform wall thickness after centrifugal movement, the blanks can be placed in the closing device 7 in advance as described above, and the blanks can be subjected to centrifugal movement as described above, and the rotation speed of the centrifugal device 8 can be controlled and recorded multiple times, and the rotation angle of the posture adjustment device 9 can be controlled and recorded multiple times, so that the closing device 7 wraps the blanks and performs centrifugal movement, so that the blanks can have uniform wall thickness. The above operation can be used to pre-determine the value of the uniform wall thickness of the blanks with different fluidities after centrifugal movement, and then the value is input into the control program of the blow molding equipment of the plastic lubricating oil bottle;As for the blank of the plastic lubricant bottle with a non-center-symmetrical layout, the blank needs to be at the bottle mouth of the plastic lubricant bottle mold. The distance between the expansion center of the blank and the handle of the plastic lubricant bottle mold is longer. When the blank is blow-molded and expanded, more plastic in this area needs to be pulled, resulting in the wall thickness of this area being thinner than the other side after blow molding. This area is also easy to break during blow molding, resulting in an increased scrap rate. For the blank of the plastic lubricant bottle with a non-center-symmetrical layout for blow molding, in order to make the blank have a relatively higher wall thickness in one area under the premise of having a uniform wall thickness, so that when the blank is blow-molded, the area with relatively higher wall thickness of the blank is directed toward the oil bottle mold position away from the expansion center of the blank, so that the blank is blow-molded under the above state. , which can make the area with relatively higher wall thickness of the blank expand more balanced to the oil bottle handle position farther away, so that the blank after blow molding has a relatively more uniform wall thickness in the mold, avoiding the disadvantage of thinner wall thickness far away from the expansion center of the blank. To achieve the above purpose, after the blank is controlled to make the wall thickness uniform by centrifugal movement in the closing device 7, the centrifugal device 8 is controlled to drive the blank in the closing device 7 to make the pause point and pause time during the centrifugal movement, so that when the blank passes the pause time at the pause point of the centrifugal movement, the blank can make the wall thickness of the area facing downward higher through gravity. If it is necessary to accumulate the wall thickness of a certain area faster, the centrifugal device 8 can be controlled to swing forward and reverse to make the centrifugal device 8 move the wall thickness of a certain area The blank is swung in a targeted manner to make the blank have a higher thickness in this area. In this way, the blank can have a higher wall thickness in a certain area under the premise of uniform wall thickness. Blow molding is performed on a non-center-symmetrical oil bottle mold to ensure that the blank after blow molding has a relatively more uniform wall thickness in the mold; after the blank is balanced by centrifugal motion, the posture adjustment device 9 can be controlled to rotate the closing device 7 to reset vertically upward, and the first electric slide rail 2 can be controlled to drive the closing device 7 to move upward again, so that the movable clamp 10 contacts the fixed clamp 11. At this time, the upper side of the blank passes through the fixed clamp 11. At this time, the fixed clamp 11 can be controlled to clamp the blank, and then the movable clamp 10 can be controlled to disengage from the clamping of the blank, and then the The centrifugal device 8 is controlled to rotate and reset, and the closing device 7 is controlled to open, and the first electric slide rail 2 is controlled to drive the closing device 7 when opened to move downward for reset, so that the closing device 7 in the open state is out of the range of wrapping the blank; thereafter, the blow molding machine mold can be controlled to move to the left to the mold closing area, that is, the position between the fixed clamp 11 and the movable clamp 10, and the blow molding machine mold is controlled to close the mold, so that the blow molding machine mold tightly clamps a section between the upper and lower sides of the blank, that is, the blank is located in a section where the movable clamp is clamped, and then the fixed clamp 11 is controlled to be out of the clamping of the blank. At this time, the blow molding machine mold can be controlled to move to the right to the blow molding area for blow molding, so that the blow molding process of a plastic lubricating oil bottle is completed;By placing the blank in the closing device 7 and driving the centrifugal device 8 to make the blank perform centrifugal motion in the closing device 7 to balance the wall thickness, the wall thickness of the blank can be made uniform, and by adjusting the posture of the closing device 7 by the posture adjustment device 9 and controlling the operation mode of the centrifugal device 8, the blank can be formed with different wall thicknesses and different wall thicknesses in parts, so that the blank can be applied to more different types of plastic lubricating oil bottles and can have a relatively more uniform wall thickness after blow molding. ;

[0035] Embodiment 2, as Figure 5-Figure 12 As shown, the closing device 7 includes a second electric slide rail 71, a closing frame 72, an arc-shaped slide rail 73, a fixed frame 74 and a wrapping layer 75. The number of the second electric slide rails 71 is two groups, and the second electric slide rails 71 are respectively fixedly connected to the vertical frame 6. The second electric slide rails 71 are all horizontally arranged, and the second electric slide rails 71 are all controlled by a servo system. The propulsion direction of the second electric slide rails 71 is toward the center, and the inner side of the moving parts of the second electric slide rails 71 is fixedly connected with the closing frame 72. The closing frame 72 is a semicircular frame structure. After being pushed by the second electric slide rail 71, the closing frame 72 is a tightly fitted annular frame structure. The joint of the closing frame 72 is a structure with a key and a key slot. The closing frame 72 is aligned with the vertical frame 6 through its key and key slot structure when closing. A stable annular structure is formed, and the closing frame 72 is fixedly connected with an arc-shaped slide rail 73, and the arc-shaped slide rail 73 is a semicircular structure. Each arc-shaped slide rail 73 has two moving parts, and the inner side of the moving parts of the arc-shaped slide rail 73 is fixedly connected to the fixed frame 74, and the inner side of the fixed frame 74 is fixedly connected with a wrapping layer 75, and the wrapping layer 75 is a semicircular structure. After being pushed by the second electric slide rail 71, the wrapping layer 75 becomes a tightly fitting annular structure. The internal space of the annular structure after the wrapping layer 75 is closed is the area for wrapping the blank, and the movable clamp 10 is respectively installed at the upper side of the wrapping layer 75. The centers of the wrapped layer 75, the arc-shaped slide rail 73 and the closing frame 72 after closing are on the same vertical line as the center of the blank extrusion port of the blow molding machine.

[0036] The second electric slide rails 71 on both sides are controlled to operate, so that the second electric slide rails 71 on both sides respectively drive their moving parts to move inward, so that the moving parts of the second electric slide rails 71 respectively drive the connected closing frame 72, the arc-shaped slide rail 73, the fixed frame 74 and the wrapping layer 75 to move inward, so that the closing frame 72, the arc-shaped slide rail 73 and the wrapping layer 75 are docked, so that the wrapping layer 75 is closed to form an area for wrapping the blank. After starting the centrifugal device 8, the centrifugal device 8 will drive the closing frame 72 to operate through the arc-shaped slide rail 73 to rotate the wrapping layer 75, so that the blank in the wrapping layer 75 performs centrifugal motion, so that the blank balances the wall thickness under the centrifugal action, so that the blank has a uniform thickness, and the rotation speed and other operating modes of the centrifugal device 8 are controlled to form different wall thicknesses of the blank in the wrapping layer 75; the second electric slide rails 71 on both sides are controlled to drive their moving parts to operate outward respectively, so that the wrapping layer 75 can be opened.

[0037] like Figure 7 and Fig.11 As shown, the centrifugal device 8 includes a first arcuate toothed belt 81, a first drive motor 82 and a first gear 83. There are two groups of first arcuate toothed belts 81. The first arcuate toothed belts 81 are respectively fixedly connected to the upper outer side of the fixing frame 74. The first arcuate toothed belts 81 form a complete gear ring when the closing frame 72 is closed. The left side of the closing frame 72 is fixedly connected with the first drive motor 82. The first drive motors 82 are all servo motors controlled by a servo system. The two groups of first drive motors 82 are synchronously controlled. The output shafts of the first drive motors 82 are connected with the first gears 83 through couplings. The first gears 83 respectively cooperate with the adjacent first arcuate toothed belts 81.

[0038] When the closing frame 72 is closed, the first arcuate toothed belt 81 will form a complete toothed ring. At this time, the control program of the first drive motor 82 can be started to make the first drive motor 82 drive the first gear 83 to rotate in the same direction. The first gear 83 will drive the first arcuate toothed belt 81 to rotate. The first arcuate toothed belt 81 rotates the fixed frame 74, thereby driving the wrapping layer 75 to rotate, so that the blank in the wrapping layer 75 performs centrifugal motion; and by controlling the speed and other rotation modes of the first drive motor 82, the wrapping layer 75 can be controlled to perform a set rotation; when the closing frame 72 needs to be opened, the control program of the first drive motor 82 will control.

[0039] like Figure 3 As shown, the posture adjustment device 9 includes a second arc-shaped toothed belt 91, a second drive motor 92 and a second gear 93. The second arc-shaped toothed belt 91 is fixedly connected to the lower side of the rotating frame 5, and the second drive motor 92 is fixedly connected to the rear side of the shaft frame 4. The second drive motor 92 is a servo motor controlled by a servo system. The output shaft of the second drive motor 92 is fixedly connected to the second gear 93 through a coupling, and the second gear 93 cooperates with the second arc-shaped toothed belt 91.

[0040] Start the second drive motor 92, the second drive motor 92 will drive the second gear 93 to rotate, so that the second gear 93 drives the second arc-shaped toothed belt 91 to rotate, and the second arc-shaped toothed belt 91 will drive the rotating frame 5 to rotate, thereby driving the vertical frame 6 and the closing device 7 to rotate, so that the closing device 7 changes its angle, and the closing device 7 can lie flat to reduce the influence of gravity on the blank; the closing device 7 can also have a set angle by controlling the output angle of the second drive motor 92.

[0041] like Figure 8 and Fig.14 As shown, the movable clamp 10 includes a third electric slide rail 101 and a movable clamp 102. The third electric slide rail 101 is in two groups. The third electric slide rails 101 are respectively fixedly connected to the middle part of the upper side of the wrapping layer 75. The third electric slide rails 101 are all controlled by a servo system. The third electric slide rails 101 are all horizontally placed. The propulsion direction of the third electric slide rail 101 is toward the inside. The moving parts of the third electric slide rail 101 are all fixedly connected with movable clamps 102. The movable clamps 102 are all facing inward. The movable clamps 102 are structures with barbs on the inside. The barbed structure of the movable clamps 102 is used to hook the blank during propulsion and clamping.

[0042] When the movable clamp 10 is controlled to clamp the blank, the third electric slide rails 101 will move toward each other, so that the third electric slide rails 101 will drive the movable clamp 102 to move inward through its movable parts, so that the movable clamp 102 can hook the blank through its barbed structure; and when the movable clamp 10 is controlled to release the clamping of the blank, the program will control the third electric slide rails 101 to reset, thereby driving the movable clamp 102 to move outward, so that the movable clamp 102 and its barbed structure are out of contact with the blank.

[0043] like Figure 1 , Fig.13 and Fig.14As shown, the fixing fixture 11 includes an extension frame 111, a mounting ring 112, a fourth electric slide rail 113 and a fixing clip 114. The extension frame 111 is fixedly connected to the upper side of the mounting frame 1. The extension frame 111 is an L-shaped structure. The upper side of the extension frame 111 is fixedly connected to the mounting ring 112. The center of the mounting ring 112 and the closing center of the closing device 7 are on the same vertical line. The front and rear sides of the mounting ring 112 are fixedly connected to the fourth electric slide rail 113. The fourth electric slide rails 113 are all controlled by a servo system. The fourth electric slide rails 113 are all horizontally placed. The propulsion direction of the fourth electric slide rail 113 is toward the inside. The installation position of the fourth electric slide rail 113 is staggered with the installation position of the third electric slide rail 101. The moving parts of the fourth electric slide rail 113 are fixedly connected with fixing clips 114. The fixing clips 114 are all facing inward. The fixing clips 114 are structures with barbs on the inside. The barbed structure of the fixing clips 114 is used to hook the blank during propulsion and clamping.

[0044] When the fixing clamp 11 is controlled to clamp the blank, the fourth electric slide rail 113 will move toward each other, so that the fourth electric slide rail 113 drives the fixing clip 114 to move inward through its moving parts, so that the fixing clip 114 hooks the blank through its barbed structure; and when the fixing clamp 11 is controlled to release the clamping of the blank, the program will control the fourth electric slide rail 113 to reset, thereby driving the fixing clip 114 to move outward, so that the fixing clip 114 and its barbed structure are out of contact with the blank.

[0045] Embodiment 3, as Figure 2 As shown, a heating rod 12 is also included. The heating rod 12 is fixedly connected to the middle position of the upper side of the rotating frame 5. The heating rod 12 is used to control the inner ring temperature of the blank to avoid the internal temperature loss.

[0046] The heating temperature of the heating rod 12 is controlled according to the ambient temperature and the appropriate temperature of the blank, so that the heating rod 12 controls the temperature of the inner ring of the blank to prevent the inner ring of the blank from losing temperature.

[0047] like Figure 9-10 As shown, it also includes a heat preservation device 13, which includes a heat preservation layer 121 and an electric heating plate 122. The heat preservation device 13 is arranged on the outside of the wrapping layer 75. The heat preservation device 13 is used to further ensure the temperature of the blank before waiting for mold closing and blow molding to prevent the blank from losing temperature. The heat preservation layer 121 is fixedly connected to the outside of the wrapping layer 75, and the electric heating plate 122 is fixedly connected to the inside of the heat preservation layer 121. The electric heating plate 122 is a patch type heating module, and the electric heating plate 122 is in contact with the outside of the wrapping layer 75.

[0048] The heating temperature of the electric heater 122 is controlled according to the ambient temperature and the appropriate temperature of the blank, so that the electric heater 122 can control the temperature of the wrapping area inside the wrapping layer 75, thereby preventing the blank from losing temperature too quickly, resulting in poor fluidity and difficulty in blow molding.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blow molding device for a plastic lubricating oil bottle, comprising a mounting frame (1), characterized in that: The right side of the mounting frame (1) is fixedly connected to a first electric slide rail (2); a moving frame (3) is fixedly connected to a moving part of the first electric slide rail (2); the right side of the moving frame (3) is fixedly connected to an axis frame (4); a rotating frame (5) is rotatably connected between the axis frames (4); and a vertical frame (6) is fixedly connected to the upper side of the rotating frame (5) in both the front and rear directions; A closing device (7) is provided between the upper sides of the stand (6), and the closing device (7) performs closing and opening actions; The closing device (7) is provided with a centrifugal device (8), and the centrifugal device (8) is used to make the wrapping area of ​​the closing device (7) rotate on its own; The shaft frame (4) is provided with a posture adjustment device (9), and the posture adjustment device (9) is used to adjust the angle of the rotating frame (5); A movable clamp (10) is provided on the upper side of the wrapping area of ​​the closing device (7), and the movable clamp (10) is used to clamp the upper side of the blank in the wrapping area of ​​the closing device (7); A fixing fixture (11) is provided on the upper side of the mounting frame (1), and the fixing fixture (11) is used to clamp the blank after the wall thickness is balanced by centrifugal motion for subsequent mold combination and blow molding.

2. The blow molding device for a plastic lubricating oil bottle according to claim 1, characterized in that: The closing device (7) comprises a second electric slide rail (71), the second electric slide rail (71) is fixedly connected to the stand (6), the inner side of the moving parts of the second electric slide rail (71) is fixedly connected to a closing frame (72), the closing frame (72) is fixedly connected to an arc-shaped slide rail (73), the inner side of the moving parts of the arc-shaped slide rail (73) is fixedly connected to a fixed frame (74), the inner side of the fixed frame (74) is fixedly connected to a wrapping layer (75), and the movable clamps (10) are respectively installed at the upper side of the wrapping layer (75).

3. The blow molding device for a plastic lubricating oil bottle as claimed in claim 2, characterized in that: The centrifugal device (8) comprises a first arc-shaped toothed belt (81), the first arc-shaped toothed belt (81) being fixedly connected to the upper outer side of the fixing frame (74), the left side of each of the folding frames (72) being fixedly connected to a first drive motor (82), the output shaft of each of the first drive motors (82) being connected to a first gear (83), the first gear (83) being matched with adjacent first arc-shaped toothed belts (81), respectively.

4. A blow molding device for a plastic lubricating oil bottle as claimed in claim 3, characterized in that: The posture adjustment device (9) comprises a second arc-shaped toothed belt (91), the second arc-shaped toothed belt (91) being fixedly connected to the lower side of the rotating frame (5), a second drive motor (92) being fixedly connected to the rear side of the shaft frame (4), a second gear (93) being fixedly connected to the output shaft of the second drive motor (92), and the second gear (93) cooperating with the second arc-shaped toothed belt (91).

5. The blow molding device for a plastic lubricating oil bottle as claimed in claim 4, characterized in that: The movable clamp (10) comprises a third electric slide rail (101), the third electric slide rail (101) being fixedly connected to the middle part of the upper side of the wrapping layer (75), and movable clamps (102) are fixedly connected to the moving parts of the third electric slide rail (101).

6. A blow molding device for a plastic lubricating oil bottle as claimed in claim 5, characterized in that: The fixing fixture (11) comprises an extension frame (111), the extension frame (111) being fixedly connected to the upper side of the mounting frame (1), a mounting ring (112) being fixedly connected to the upper side of the extension frame (111), a fourth electric slide rail (113) being fixedly connected to the front and rear sides of the mounting ring (112), and a fixing clip (114) being fixedly connected to the moving parts of the fourth electric slide rail (113).

7. A blow molding device for a plastic lubricating oil bottle as claimed in claim 6, characterized in that: It also comprises a heating rod (12), wherein the heating rod (12) is fixedly connected to the middle position of the upper side of the rotating frame (5).

8. The blow molding device for a plastic lubricating oil bottle as claimed in claim 7, characterized in that: It also includes a heat-insulating device (13), which is arranged outside the wrapping layer (75), and is used to further ensure the temperature of the blank before waiting for mold closing and blow molding. The outside of the wrapping layer (75) is fixedly connected to a heat-insulating layer (121), and the inside of the heat-insulating layer (121) is fixedly connected to an electric heating plate (122).

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