Servo fully automatic PP material blow molding machine

Abstract

The servo fully automatic PP material blow molding machine includes a conveying mechanism, a blank loading mechanism, a heating device, a blank pushing device, a bottle blowing mechanism, a blank feeding and bottle feeding mechanism and a bottle feeding mechanism installed on a frame, the conveying mechanism includes a track, a bottle preform support seat and PP material bottle preforms are arranged in the track, a revolving sprocket is arranged in the track, and the gear teeth of the revolving sprocket are inserted between the corresponding bottle preform support seats, the blank pushing device includes a blank pushing bracket, a blank pushing plate is arranged on the blank pushing bracket, and the blank pushing plate is driven by the blank pushing moving mechanism to push the PP material bottle preforms output from the heating device and the bottle preform supporting seat to the blank feeding and bottle feeding mechanism; the blank feeding and bottle feeding mechanism includes a linear guide rail crossing the bottle blowing mechanism, and the linear guide rail is sequentially provided with a blank feeding station, a bottle discharging station, a blank loading station and a blank feeding station, a blank feeding and bottle feeding moving device is arranged under the linear guide rail and is driven by the blank feeding and bottle feeding moving device to realize the blank feeding station receiving the blanks, the bottle discharging station feeding the bottles, the blank loading station loading the blanks and the blank feeding station feeding the blanks.

Description

Technical Field

[0001] The invention relates to a servo fully automatic PP material bottle blowing machine, belonging to the field of plastic machinery. Background Art

[0002] Currently, hollow plastic containers like oil bottles and mineral water bottles are all made of PET, while beverage bottles for yogurt and fruit milk are made of PP. Because PP is more heat-resistant and high-temperature resistant than PET, these products are produced using a two-step injection-blow molding process: PET is first injected into a preform, which is then placed into a blow molding machine for stretch-blow molding. Yogurt and fruit milk bottles, on the other hand, use a one-step extrusion-blow molding process, where the PP material is directly extruded from the injection molding machine nozzle into a stretch-blow mold for blow molding. In actual production, the injection-blow molding process offers greater efficiency and product quality than the extrusion-blow molding process, leading to the development of a blow molding machine specifically for PP production. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a servo-controlled fully automatic PP bottle blowing machine specially used for producing PP beverage bottles with high efficiency and good quality.

[0004] The technical solution of the servo-controlled fully automatic PP bottle blowing machine of the present invention is as follows: it includes a conveying mechanism, a blank loading mechanism, a heating device, a blank pushing device, a bottle blowing mechanism, a blank feeding and bottle feeding mechanism and a bottle feeding mechanism installed on a frame, and is characterized in that the conveying mechanism includes a rectangular track arranged on the frame, a closely arranged blank support seat is slidably arranged in the track, a PP blank is inserted upside down on the blank support seat, a self-rotating gear is provided on the blank support seat, and the self-rotating gear is driven to rotate by the self-rotating mechanism, a revolving sprocket is provided at the first corner of the rectangular track, the gear teeth of the revolving sprocket are inserted between the corresponding blank support seats, and the revolving sprocket is driven to rotate by the power ... The movable preform support seat slides and revolves on the track; the preform pushing device includes a preform pushing bracket arranged next to the track in front of the bottle blowing mechanism, and a preform pushing plate is arranged on the preform pushing bracket, which is driven by the preform pushing moving mechanism to push the PP material preforms output from the heating device and the preform support seat to the preform feeding and bottle feeding mechanism; the preform feeding and bottle feeding mechanism includes a linear guide rail crossing the bottle blowing mechanism, and the linear guide rail is sequentially provided with a preform feeding station, a bottle discharging station, a preform loading station and a preform feeding station, and a preform feeding and bottle feeding moving device is arranged under the linear guide rail and is driven by the preform feeding and bottle feeding moving device to realize the preform feeding station receiving the preforms, the bottle discharging station feeding the bottles, the preform loading station loading the preforms and the preform feeding station feeding the preforms.

[0005] The present invention discloses a servo-controlled fully automatic PP bottle blowing machine. When the machine is in the initial position, the blank feeding station corresponds to the blank pushing plate, the bottle discharging station corresponds to the bottle blowing mechanism, the blank loading station corresponds to the bottle feeding mechanism, and the blank feeding station corresponds to the blank loading mechanism. During operation, the blank feeding station is driven by a blank feeding and bottle feeding moving device. The blank feeding station is connected to a bottle blank support seat with a PP bottle blank from the blank pushing plate and feeds the bottle into the bottle blowing mechanism. The bottle discharging station transfers the PP bottle and the bottle blank support seat formed by blow molding at the bottle blowing mechanism to the bottle feeding mechanism, and the bottle feeding mechanism clamps the PP bottle from the bottle blank support seat and sends it out of the machine. The blank loading station transfers the bottle blank support seat remaining at the bottle feeding mechanism to the blank loading mechanism, and the blank loading mechanism inserts the PP bottle blank onto the bottle blank support seat. The preform feeding station delivers the preform support, previously located at the loading mechanism and already loaded, to the revolving sprocket. All of these actions are synchronously driven by the preform feeding and bottle feeding motion mechanism. The revolving sprocket drives the preform support to slide and revolve on the track. During this revolving motion, the heating device heats and softens the PP preforms. Simultaneously, the rotation mechanism drives the revolving gear, which in turn rotates the PP preforms on the preform support, ensuring uniform heating. After the heated PP preforms emerge from the heating device, the preform pushing device pushes the corresponding number of preform supports to the preform feeding station according to the set position. This reciprocating cycle completes the loading, feeding, heating, feeding, blowing, and bottle delivery of PP preforms. This solution offers high production efficiency and low production costs, resulting in high-quality, high-grade bottles.

[0006] The servo-controlled fully automatic PP bottle blowing machine of the present invention features two flat plates mounted on the linear guide rails. The preform feeding and discharging stations are located on one plate, while the preform loading and delivery stations are located on another plate. Each station can be processed separately on the two plates, facilitating processing. The preform support comprises a circular support body made of plastic material, within which a bearing is disposed, and within which a support rod is mounted. The support rod extends out of the circular support body, and the PP preform is inserted upside down on the support rod. A self-rotating gear is mounted on the support rod, and a groove is provided on the outer peripheral wall of the circular support body, which mates with the rails. The preform support is made of plastic material, which reduces collisions and noise during orbital operation, while also saving costs. The heating device is equipped with an air blower. The air blower blows air into the heating device, circulating the heat within the heating device, improving the heating efficiency of the PP preforms, reducing heating time, and ensuring more uniform heating. The described pushing mechanism includes a horizontal pushing slide rail installed on the pushing bracket, a horizontal pushing slider installed under the pushing plate, the horizontal pushing slider cooperates with the horizontal pushing slide rail, and a vertical plate is provided at each end of the pushing bracket, and a pushing servo motor is provided on one of the vertical plates, the output shaft of the pushing servo motor is connected to the pushing screw, and the pushing screw is connected to the other vertical plate, a pushing screw block is provided on the pushing screw, and the pushing screw block is connected to the pushing plate, a longitudinal pushing slider is installed under the pushing bracket, a pushing base is installed on the frame, a longitudinal pushing slide rail is installed on the pushing base, the longitudinal pushing slider cooperates with the longitudinal pushing slide rail, a cylinder bracket is installed on one side of the pushing base, a pushing cylinder is installed on the cylinder bracket, the cylinder rod of the pushing cylinder is connected to the pushing bracket, the pushing cylinder drives the pushing bracket to move longitudinally, and the pushing servo motor drives the pushing plate to move transversely, so as to realize that the pushing plate receives the blank and sends the blank. The described blank feeding and bottle sending moving device includes a linear electric cylinder arranged under the linear guide rail, the linear electric cylinder is driven by an electric cylinder servo motor, driving the linear guide rail to perform lateral translation, a fixed plate is arranged under the linear electric cylinder, an electric cylinder slider is installed under the fixed plate, an electric cylinder base is arranged on the frame, an electric cylinder slide rail is installed on the electric cylinder base, the electric cylinder slider cooperates with the electric cylinder slide rail, a longitudinal translation cylinder is installed on each side of the electric cylinder base, the cylinder rod of the longitudinal translation cylinder is connected to the fixed plate, the electric cylinder servo motor drives the linear electric cylinder, the linear electric cylinder drives the linear guide rail to perform lateral translation, and the translation cylinder drives the linear electric cylinder and the linear guide rail on the fixed plate to perform longitudinal translation, thereby realizing that the blank feeding and bottle sending moving device receives and sends blanks. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a structural diagram of the servo fully automatic PP material bottle blowing machine of the present invention;

[0008] Figure 2 It is a schematic diagram of a blank pushing device of the present invention;

[0009] Figure 3 yes Figure 2A-direction schematic diagram;

[0010] Figure 4 yes Figure 2 Schematic diagram of direction B;

[0011] Figure 5 This is a schematic diagram of the blank feeding and bottle delivering mechanism of the present invention;

[0012] Figure 6 This is a schematic diagram of the cooperation between the blank feeding and bottle delivering mechanism and the blank supporting seat of the present invention;

[0013] Figure 7 It is a schematic diagram of the cooperation between the bottle preform support seat and the track of the present invention. DETAILED DESCRIPTION

[0014] The present invention relates to a servo fully automatic PP material bottle blowing machine, such as Figure 1 — Figure 7 As shown, it includes a conveying mechanism 02, a blank loading mechanism 03, a heating device 04, a blank pushing device 05, a bottle blowing mechanism 06, a blank feeding and bottle feeding mechanism 07 and a bottle feeding mechanism 08 installed on the frame 01. The conveying mechanism 02 includes a rectangular track 21 arranged on the frame 01, and closely arranged bottle blank support seats 22 are slidably arranged in the track. PP material bottle blanks 25 are upside down inserted on the bottle blank support seats 22. A self-rotating gear 24 is provided on the bottle blank support seat, and the self-rotating gear is driven to rotate by the self-rotating mechanism. A revolving sprocket 23 is provided at the first corner of the rectangular track 21. The teeth of the revolving sprocket are inserted between the corresponding bottle blank support seats 22, and the revolving sprocket is driven to rotate by power, so as to drive the bottle blank support seat 22 to slide and revolve on the track 21. ; The blank pushing device 05 includes a blank pushing bracket 51 arranged next to the track 21 in front of the bottle blowing mechanism 06, and a blank pushing plate 52 is arranged on the blank pushing bracket. The blank pushing plate 52 is driven by the blank pushing moving mechanism to push the PP material bottle blanks 25 and the bottle blank support seat 22 output from the heating device 04 to the blank feeding and bottle feeding mechanism 07; the blank feeding and bottle feeding mechanism 07 includes a linear guide rail 61 that crosses the bottle blowing mechanism 06, and the blank feeding station 62, the bottle discharging station 63, the blank loading station 64 and the blank feeding station 65 are sequentially arranged on the linear guide rail. A blank feeding and bottle feeding moving device is arranged under the linear guide rail 61 and is driven by the blank feeding and bottle feeding moving device to realize the blank feeding station 62 receiving the blanks, the bottle discharging station 63 feeding the bottles, the blank loading station 64 loading the blanks and the blank feeding station 65 feeding the blanks.

[0015] When the machine is in the initial position, the blank feeding station 62 corresponds to the blank pushing plate 52, the bottle discharging station 63 corresponds to the bottle blowing mechanism 06, the blank loading station 64 corresponds to the bottle feeding mechanism 08, and the blank feeding station 65 corresponds to the blank loading mechanism 03. During operation, driven by the blank feeding and bottle feeding moving device, the blank feeding station 62 is connected to the bottle preform support seat 22 with the PP material bottle preform 25 from the blank pushing plate 52, and is fed into the bottle blowing mechanism 06. The bottle discharging station 63 transfers the PP material bottle and the bottle preform support seat 22 blown and formed at the bottle blowing mechanism 06 to the bottle feeding mechanism 08, and the bottle feeding mechanism 08 clamps the PP material bottle from the bottle preform support seat 22 and sends it out of the machine. The blank loading station 64 transfers the bottle preform support seat 22 remaining at the bottle feeding mechanism 08 to the blank loading mechanism 03, and the blank loading mechanism 03 inserts the PP material bottle preform 25 into the bottle preform support seat 22 The preform feeding station 65 delivers the preform support 22, which was originally located at the preform loading mechanism 03 and has already been loaded, to the revolving sprocket 23. All of these actions are synchronously driven by the preform feeding and bottle feeding motion device. The revolving sprocket 23 drives the preform support 22 to slide and revolve on the track 21. During this revolving motion, the heating device 04 heats and softens the PP preforms. Simultaneously, the rotation mechanism drives the revolving gear 24 to rotate, which in turn rotates the PP preforms on the preform support 22, ensuring uniform heating of the PP preforms. After the heated PP preforms 25 emerge from the heating device 04, the preform pushing device 05 pushes the corresponding number of preform support 22 to the preform feeding station 62 according to the set position. This reciprocating cycle completes the loading, feeding, heating, feeding, blowing, and bottle delivery of the PP preforms. This solution has high production efficiency, low production costs, and produces high-quality, high-grade bottles.

[0016] The power for driving the revolving sprocket 23 to revolve is a servo motor. The blank loading mechanism 03, the heating device 04, the bottle blowing mechanism 06, the bottle feeding mechanism 08 and the rotation mechanism are all existing technologies. For example, the heating device includes a heating bracket and a heating lamp tube, the rotation mechanism includes a rotation chain matched with a rotation gear, the bottle blowing mechanism includes a movable and fixed template, a bottle blowing mold and a mold opening and closing power, etc., which are all conventional technologies. The blank loading mechanism and the bottle feeding mechanism have also been patented by the applicant and have been obtained. They are well-known technologies and will not be repeated here. In actual production, due to the heat-resistant nature of PP material itself, the required heating time is long. When running in the heating device, the various bottle preform support seats are close together and are driven by the revolving sprocket to squeeze, slide and revolve on the track. After heating is completed, the preform pushing device 05 pushes the corresponding number of bottle preform support seats 22 to the preform feeding and bottle delivery mechanism 07. The number of each station on the preform feeding and bottle delivery mechanism is determined according to the actual production capacity. The number of each station set in this solution is four, but it can also be two, three, five, six, etc.

[0017] Two flat plates 66 are installed on the linear guide rail 61. The blank feeding station 62 and the bottle discharging station 63 are arranged on one flat plate, and the blank loading station 64 and the blank delivering station 65 are arranged on another flat plate. Each station is processed separately on the two flat plates, which is convenient for processing.

[0018] The preform support 22 comprises a circular support body 221 made of plastic. A bearing 222 is disposed within the circular support body 221, which is mounted within a support rod 223 extending from the circular support body. A PP preform 25 is inserted upside down onto the support rod 223, and a self-rotating gear 24 is mounted on the support rod 223. A groove 224 is provided on the outer circumferential wall of the circular support body 221, which mates with the track 21. The plastic material used in the preform support reduces collisions and noise during orbital operation, while also saving costs.

[0019] The heating device 04 is provided with an air supply fan 41. The air supply fan blows air into the heating device, so that the heat in the heating device forms an internal circulation, improves the heating effect of the PP material bottle blank, reduces the heating time, and heats more evenly.

[0020] The pusher moving mechanism includes a horizontal pusher rail 53 installed on the pusher bracket 51, a horizontal pusher slider 54 installed under the pusher plate 52, the horizontal pusher slider 54 cooperates with the horizontal pusher rail 53, and a vertical plate 55 is provided at each end of the pusher bracket 51, one of which is provided with a pusher servo motor 56, the output shaft of the pusher servo motor 56 is connected to a pusher screw 57, the pusher screw 57 is connected to another vertical plate, a pusher screw block 58 is provided on the pusher screw, the pusher screw block 58 is connected to the pusher plate 52, and the pusher screw block 58 is connected to the pusher plate 52. A longitudinal billet pushing slider 59 is installed under the bracket 51, a billet pushing base 590 is installed on the frame 01, a longitudinal billet pushing slide rail 591 is installed on the billet pushing base 590, the longitudinal billet pushing slider 59 cooperates with the longitudinal billet pushing slide rail 591, a cylinder bracket 592 is installed on one side of the billet pushing base 590, a billet pushing cylinder 593 is installed on the cylinder bracket, the cylinder rod of the billet pushing cylinder 593 is connected to the billet pushing bracket 51, the billet pushing cylinder drives the billet pushing bracket to move longitudinally, and the billet pushing servo motor drives the billet pushing plate to move horizontally, so that the billet pushing plate can receive and deliver the billets.

[0021] The blank feeding and bottle sending mobile device includes a linear electric cylinder 610 arranged under the linear guide rail 61, the linear electric cylinder 610 is driven by an electric cylinder servo motor 611, driving the linear guide rail 61 to perform lateral translation, a fixed plate 614 is arranged under the linear electric cylinder 610, an electric cylinder slider 612 is installed under the fixed plate 614, an electric cylinder base 613 is arranged on the frame 01, an electric cylinder slide rail 615 is installed on the electric cylinder base, the electric cylinder slider 612 cooperates with the electric cylinder slide rail 615, a longitudinal translation cylinder 616 is installed on each side of the electric cylinder base 613, the cylinder rod of the longitudinal translation cylinder 616 is connected to the fixed plate 614, the electric cylinder servo motor 611 drives the linear electric cylinder, the linear electric cylinder drives the linear guide rail to perform lateral translation, and the translation cylinder drives the linear electric cylinder and the linear guide rail on the fixed plate to perform longitudinal translation, thereby realizing the blank feeding and bottle sending mobile device to receive and send blanks.

Claims

1. A servo-controlled fully automatic PP material blow molding machine, comprising a conveying mechanism (02), a blank loading mechanism (03), a heating device (04), a blank pushing device (05), a bottle blowing mechanism (06), a blank feeding and bottle feeding mechanism (07), and a bottle feeding mechanism (08) mounted on a machine frame (01), characterized in that The conveying mechanism (02) comprises a track (21) arranged in a rectangular shape on a frame (01), closely arranged bottle blank support seats (22) are slidably arranged in the track, PP bottle blanks (25) are invertedly inserted on the bottle blank support seats (22), and a self-rotating gear (24) is provided on the bottle blank support seats, and the self-rotating gear is driven to rotate by the self-rotating mechanism. A revolving sprocket (23) is provided at the first corner of the rectangular track (21), and the teeth of the revolving sprocket are inserted between the corresponding bottle blank support seats (22), and the revolving sprocket is driven by power to rotate, so as to move the bottle blank support seats (22) to slide and revolve on the track (21);The blank pushing device (05) includes a blank pushing bracket (51) arranged beside the track (21) in front of the bottle blowing mechanism (06), a blank pushing plate (52) is arranged on the blank pushing bracket, and the blank pushing plate (52) is driven by the blank pushing moving mechanism to push the PP bottle blank (25) and the bottle blank support seat (22) output from the heating device (04) to the blank feeding and bottle feeding mechanism (07), and the blank pushing moving mechanism includes a transverse blank pushing slide rail (53) installed on the blank pushing bracket (51), a transverse blank pushing slider (54) installed under the blank pushing plate (52), the transverse blank pushing slider (54) cooperates with the transverse blank pushing slide rail (53), and is provided at both ends of the blank pushing bracket (51). A vertical plate (55) is provided, wherein a push servo motor (56) is provided on one of the vertical plates, an output shaft of the push servo motor (56) is connected to a push screw (57), the push screw (57) is connected to another vertical plate, a push screw block (58) is provided on the push screw, the push screw block (58) is connected to the push plate (52), a longitudinal push slider (59) is installed under the push bracket (51), a push base (590) is installed on the frame (01), a longitudinal push rail (591) is installed on the push base (590), the longitudinal push slider (59) cooperates with the longitudinal push rail (591), and a cylinder bracket (590) is installed on one side of the push base (590). 592), a blank pushing cylinder (593) is installed on the cylinder bracket, and the cylinder rod of the blank pushing cylinder (593) is connected to the blank pushing bracket (51). The blank feeding and bottle feeding mechanism (07) includes a linear guide rail (61) that crosses the bottle blowing mechanism (06), and the linear guide rail is sequentially provided with a blank feeding station (62), a bottle discharging station (63), a blank loading station (64) and a blank feeding station (65). A blank feeding and bottle feeding moving device is provided under the linear guide rail (61), and is driven by the blank feeding and bottle feeding moving device to realize the blank feeding station (62) receiving the blank, the bottle discharging station (63) feeding the bottle, the blank loading station (64) loading the blank and the blank feeding station (65) feeding the blank. The blank feeding and bottle feeding moving device is included in A linear electric cylinder (610) is provided under the linear guide rail (61), and the linear electric cylinder (610) is driven by an electric cylinder servo motor (611), driving the linear guide rail (61) to perform lateral translation. A fixed plate (614) is provided under the linear electric cylinder (610), and an electric cylinder slider (612) is installed under the fixed plate (614). An electric cylinder base (613) is provided on the frame (01), and an electric cylinder slide rail (615) is installed on the electric cylinder base. The electric cylinder slider (612) and the electric cylinder slide rail (615) cooperate with each other. A longitudinal translation cylinder (616) is installed on each side of the electric cylinder base (613), and the cylinder rod of the longitudinal translation cylinder (616) is connected to the fixed plate (614).

2. The servo fully automatic PP material bottle blowing machine according to claim 1, characterized in that Two flat plates (66) are installed on the linear guide rail (61), the blank feeding station (62) and the bottle discharging station (63) are arranged on one flat plate, and the blank loading station (64) and the blank delivering station (65) are arranged on another flat plate.

3. The servo fully automatic PP material bottle blowing machine according to claim 1, characterized in that The preform support seat (22) includes a circular support seat body (221) made of plastic material, a bearing (222) is provided in the circular support seat body (221), a support rod (223) is installed in the bearing, the support rod extends out of the circular support seat body, the PP preform (25) is inserted upside down on the support rod (223), the self-rotating gear (24) is installed on the support rod (223), and a groove (224) is provided on the outer peripheral wall of the circular support seat body (221), and the groove (224) is matched with the track (21).

4. The servo fully automatic PP material bottle blowing machine according to claim 1, characterized in that The heating device (04) is provided with an air supply fan (41).

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