A synchronous directional heating device for linear blow molding equipment

Abstract

This utility model discloses a synchronous directional heating device for a linear blow molding machine, including a worktable, a main shaft rotation mechanism mounted on the worktable, and several preform rotors mounted on a second track of the main shaft rotation mechanism. A synchronous directional mechanism is also mounted on the worktable, comprising a first track, and parallel linear tracks on the first and second tracks. Several synchronous limiting components are movably mounted on the first track, and each synchronous limiting component has an elastically supported clamping plate. The preforms on the preform rotors have slots corresponding to the positions of the clamping plates. A heating chamber heats the preforms that are locked in place by the clamping plates and prevented from rotating. By adding a synchronous directional mechanism, the synchronous limiting components move synchronously with the preform rotors, allowing the clamping plates to elastically engage within the slots of the preforms, ensuring that the preform rotors themselves rotate while the preforms do not, thus achieving directional heating when passing through the heating chamber.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary device improvement design technology for blow molding equipment, and in particular to a synchronous directional heating device for linear blow molding equipment. Background Technology

[0002] Bottles are blown into a fixed shape using a linear blow molding machine. Before entering the directional heating stage, the preform undergoes continuous rotation and uniform heating. In the production of certain non-axisymmetric irregular-shaped bottle products, it is necessary to increase the heating of specific directional parts to ensure the product effect. Existing linear blow molding machines cannot directly and effectively achieve directional heating of the preform, and it is necessary to add complex variable temperature heating equipment to complete this task.

[0003] In the prior art, patent CN223045145U discloses a blow molding machine with directional temperature variation, including a high-temperature baking mechanism, a mold forming mechanism, an annular conveyor rail, and a directional temperature variation mechanism, with the directional temperature variation mechanism located between the high-temperature baking mechanism and the mold forming mechanism. This blow molding machine has a directional temperature variation mechanism installed between the baking area and the mold area. By raising or lowering the temperature, it changes the temperature of different directions or different surfaces on the same preform, ensuring that during the mold forming process, the length, width, or curvature of the blown irregularly shaped bottle remains consistent, and the wall thickness of asymmetrical bottles remains uniform. This improves the uniform heating during the irregular shaping process, optimizes the asymmetrical bottle wall thickness, improves product quality without affecting the current production line, optimizes the wall thickness of irregularly shaped bottles after mold forming, reduces bottle dents, and increases the yield rate.

[0004] In order to solve one of the above problems, this application provides a synchronous directional heating device for a linear blow molding machine. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art and to propose a synchronous directional heating device for linear blow molding equipment. By adding a synchronous directional mechanism, the synchronous limiting component follows the movement of the preform rotor and maintains synchronization, so that the clamping plate can be elastically clamped in the groove of the preform, ensuring that the preform rotor itself rotates but the preform does not rotate, and directional heating is achieved when passing through the heating box.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a synchronous directional heating device for a linear blow molding machine, comprising a worktable, a main shaft rotation mechanism mounted on the worktable, a plurality of blank rotors mounted on the second track of the main shaft rotation mechanism, a synchronous directional mechanism mounted on the worktable, the synchronous directional mechanism comprising a first track, the first track and the second track being provided with mutually parallel linear tracks, a plurality of synchronous limiting components being movably mounted on the first track, the synchronous limiting components being provided with elastic clamping plates, the blanks on the blank rotors being provided with grooves, the grooves corresponding to the positions of the clamping plates;

[0007] A heating chamber is used to heat the preform that is locked in place by a clamping plate to prevent rotation.

[0008] Furthermore, as described above, the spindle rotation mechanism includes a second dial, which drives the blank rotor into mutually parallel linear tracks, and the synchronous orientation mechanism includes a first dial, which drives the synchronous limiting assembly into mutually parallel linear tracks.

[0009] Furthermore, as described above, the blank rotor and the synchronous limiting assembly simultaneously enter mutually parallel linear tracks. A heating box is installed above the mutually parallel linear tracks, and a heating tube is installed on one side of the heating box.

[0010] Furthermore, as described above, the synchronous limiting component includes a connecting plate, on which two fixed seats are fixedly mounted. A movable block is elastically mounted on the fixed seat, and a locking plate is fixed on the movable block.

[0011] Furthermore, as described above, a guide post is movably connected between the fixed seat and the movable block, and a spring is fitted around the guide post. The fixed seat and the movable block are also connected and limited by a limiting bolt.

[0012] Furthermore, as described above, two first rotating shafts are also installed on the connecting plate. A first outer bearing is installed on the outside of the first rotating shaft. The first outer bearing is movably installed in the first track and cooperates with the first dial.

[0013] Furthermore, as described above, the card plate is fixed in the slot on the moving block by screws, and the width dimensions of the card plate and the slot match.

[0014] Furthermore, as described above, the preform rotor includes a second rotating shaft and a driven sprocket. The preform is located on the second rotating shaft, the driven sprocket is fixed outside the second rotating shaft, and a second outer bearing is installed outside the second rotating shaft. The second outer bearing is movably installed in the second track and cooperates with the second dial.

[0015] Furthermore, it also includes a transmission mechanism, which includes a driving gear and a driven gear that mesh with each other. The driving gear is fixed on the driving shaft, and a second dial is mounted on the driving shaft. The driven gear is fixed on the driven shaft, and a first dial is mounted on the driven shaft.

[0016] Furthermore, the spindle rotation mechanism described above also includes a chain, which engages with a driven sprocket.

[0017] Compared with the prior art, the beneficial effects of this utility model are: by adding a synchronous orientation mechanism, the synchronous limiting component follows the movement of the blank rotor and maintains synchronization, so that the clamping plate can be elastically clamped in the groove of the bottle blank, ensuring that the blank rotor itself rotates but the bottle blank does not rotate, and directional heating is achieved when passing through the heating box.

[0018] The entire operation of this device is mechanical. The operating speed of the synchronous orientation mechanism is the same as that of the main shaft rotation mechanism. The structure is compact, the preform heating mode can be switched smoothly, reducing energy consumption while improving efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention on the whole machine;

[0020] Figure 2 for Figure 1 An explosion diagram;

[0021] Figure 3 for Figure 1 A three-dimensional image;

[0022] Figure 4 This is a schematic diagram of the present invention in conjunction with the main shaft rotation mechanism;

[0023] Figure 5 for Figure 4 An explosion diagram;

[0024] Figure 6 for Figure 4 A partial schematic diagram;

[0025] Figure 7 for Figure 6 An explosion diagram;

[0026] Figure 8 This is a schematic diagram showing the coordination between the synchronous limiting component and the blank rotor of this utility model;

[0027] Figure 9 for Figure 8 An explosion diagram.

[0028] In the diagram: 1. Synchronous orientation mechanism; 10. First track; 11. Synchronous limiting assembly; 110. Card plate; 111. Moving block; 112. Fixed seat; 113. Limiting bolt; 114. Guide column; 115. Spring; 116. Connecting plate; 117. First rotating shaft; 118. First outer bearing; 12. First dial; 2. Main shaft rotation mechanism; 20. Second track; 21. Chain; 22. Roller with preform; 220. Preform; 221. Driven sprocket; 222. Second rotating shaft; 223. Second outer bearing; 23. Second dial; 3. Heating box; 30. Box body; 31. Heating tube; 4. Worktable; 5. Frame; 6. Transmission mechanism; 61. Driven shaft; 62. Driven shaft; 63. Driven gear; 64. Driven gear. Detailed Implementation

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," "set," etc., should be interpreted broadly. For example, when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "installed" on another element, it can be directly installed on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within the two elements.

[0031] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1

[0034] Reference Figure 1-9 As shown, this utility model discloses a synchronous directional heating device for a linear blow molding machine, comprising a frame 5 and a worktable 4 fixed on the frame 5. The worktable 4 is equipped with a main shaft rotation mechanism 2, a synchronous directional mechanism 1, and a heating box 3. The second track 20 of the main shaft rotation mechanism 2 is suspended on the worktable 4, and several preform rotors 22 are mounted on the second track 20. Preforms 220 are mounted on the preform rotors 22 and move and rotate along the second track 20. The synchronous directional mechanism 1 includes a first track 10, and the first track 10 and the second track 20 are provided with parallel linear tracks. Several synchronous limiting components 1 are movably mounted on the first track 10. 1. The synchronous limiting component 11 moves along the first track 10 but does not rotate. The synchronous limiting component 11 is provided with an elastically supported clamping plate 110. The bottle preform 220 on the preform rotor 22 is provided with a slot, and the slot corresponds to the position of the clamping plate 110. When the synchronous limiting component 11 and the preform rotor 22 synchronously enter the parallel straight tracks, the clamping plate 110 extends elastically, and the bottle preform 220 rotates until the slot engages with the clamping plate 110. The synchronous limiting component 11 completes the limiting and stopping of the rotation of the bottle preform 220. The heating box 3 heats the bottle preform 220 that is engaged with the clamping plate 110 and stopped from rotating. At this time, the bottle preform 220 cannot rotate, so it can be heated in one direction.

[0035] Both the first track 10 and the second track 20 are closed tracks, consisting of four straight track segments and four circular arc track segments. Two of the straight track segments are parallel laterally, and two of the straight track segments are parallel longitudinally. The four circular arc track segments are used to connect two adjacent straight track segments. Each track segment consists of an inner rail and an outer rail, used to movably mount the blank rotor 22 or the directional rotor. Each inner rail and outer rail is fixedly supported above the worktable 4 by multiple columns. The first track 10 and the second track 20 have mutually parallel straight tracks. In this embodiment, the mutually parallel straight tracks specifically refer to a common outer rail and their respective corresponding inner rails.

[0036] Example 2

[0037] Reference Figure 1-9As shown, based on the technical solution of Embodiment 1, a synchronous directional heating device for a linear blow molding machine, for the power transmission of the whole machine, the main shaft rotation mechanism 2 includes a second dial 23, which drives the preform rotor 22 into mutually parallel linear tracks. The synchronous directional mechanism 1 includes a first dial 12, which drives the synchronous limiting component 11 into mutually parallel linear tracks. Furthermore, the preform rotor 22 and the synchronous limiting component 11 simultaneously enter the mutually parallel linear tracks. A heating box 3 is installed above these mutually parallel linear tracks. A heating tube 31 is installed on one side of the box body 30 of the heating box 3, enabling unilateral heating of the preform 220. Figure 5 As shown, a heating box 3 is installed above the parallel straight tracks to satisfy the limiting and anti-rotation operation of the synchronous limiting component 11 on the preform 220, and the preform rotor 22 and the synchronous limiting component 11 maintain the same speed.

[0038] Furthermore, the preform rotor 22 includes a second rotating shaft 222 and a driven sprocket 221. The preform 220 is located on the second rotating shaft 222, and the driven sprocket 221 is fixed outside the second rotating shaft 222. A second outer bearing 223 is installed outside the second rotating shaft 222. The second outer bearing 223 is movably installed inside the second track 20 and cooperates with the second dial 23. The second dial 23 is located at the center of the arc track of the second track 20. The second dial 23 rotates and drives the second rotating shaft 222 to rotate, so that the entire preform rotor 22 can rotate, and the preform 220 and the driven sprocket 221 also rotate. In addition, the main shaft rotation mechanism 2 also includes a chain 21, which cooperates with a driven sprocket 221. The rotation of the driven sprocket 221 can move the chain 21, and the blank rotor 22 can move along the second track 20, thereby enabling other blank rotors 22 that are not in direct contact with the second dial 23 to also rotate. The blank rotor 22 can move along the second track 20.

[0039] This device also includes a transmission mechanism 6, which comprises a driving gear 64 and a driven gear 63 that mesh with each other. The driving gear 64 is fixed on a driving shaft 62, and a second dial 23 is mounted on the driving shaft 62. The driven gear 63 is fixed on a driven shaft 61, and a first dial 12 is mounted on the driven shaft 61. Figure 6 As shown, the second dial 23 and the first dial 12 are installed in symmetrical positions. When the synchronous orientation mechanism 1 is activated for machine adjustment, it is also necessary to ensure that the blank rotor 22 and the synchronous limit assembly 11 are simultaneously engaged.

[0040] Example 3

[0041] Reference Figure 1-9 As shown, based on the technical solution of the above embodiments, a synchronous directional heating device for a linear blow molding machine, combined with... Figure 8 and Figure 9 As can be seen, regarding the specific structural design of the synchronous limiting component 11, the synchronous limiting component 11 includes a connecting plate 116, on which two fixing seats 112 are fixed. A movable block 111 is elastically mounted on the fixing seat 112, and a locking plate 110 is fixed on the movable block 111. Specifically, a guide post 114 is movably connected between the fixing seat 112 and the movable block 111, and a spring 115 is fitted over the guide post 114. The fixing seat 112 and the movable block 111 are also connected and limited by a limiting bolt 113, that is, the movable block 111 is limited by the nut of the limiting bolt 113 to prevent the spring 115 from popping the movable block 111 out. In addition, the locking plate 110 is locked and fixed in the slot on the movable block 111 by screws, and the width of the locking plate 110 matches the width of the slot.

[0042] Furthermore, two directional rotors are also installed on the connecting plate 116. The directional rotors include a first rotating shaft 117 and a first outer bearing 118. The first outer bearing 118 is installed on the outside of the first rotating shaft 117. The first outer bearing 118 is movably installed in the first track 10 and cooperates with the first dial 12. The first dial 12 rotates and drives the first rotating shaft 117 to rotate. The first dial 12 is located at the center of the arc track of the first track 10. Due to the design of the corresponding sprocket and chain 21, although the first dial 12 can drive the first outer bearing 118 to rotate, it cannot transmit the rotation. It can only push each other to move along the first track 10. That is, the synchronous limiting component 11 can only move along the first track 10, and the clamping plate 110 can only move synchronously. On the common straight track, the clamping plate 110 moves in a straight line, which can ensure that it is always stuck at the slot position of the preform 220. The preform 220 is always limited and stopped from rotating, and is heated on one side by the heating tube 31 in the box 30.

[0043] Working principle: After the machine starts, it drives the driving gear 64 to work, and the driven gear 63 moves in the opposite direction with the same transmission ratio, so that the bottle preform 220 entering the heating chamber 3 and the clamping plate 110 are accurately aligned. Each synchronous limiting assembly 11 consists of two directional rotors connected together by a connecting plate 116. The clamping plate 110 is elastically mounted on the connecting plate 116 and perpendicular to the connecting plate 116, so that the baffle entering the heating chamber 3 can maintain the same direction. The directional rotor of the synchronous limiting assembly 11 moves at the same speed as the preform rotor 22 and remains synchronous. The clamping plate 110 is pushed by the spring 115 towards the slot of the preform 220. When the slot of the preform 220, which is in a disordered direction, is rotated by the chain 21 and the driven sprocket 221, passes through the clamping plate 110, the clamping plate 110 is engaged in the slot. This achieves the purpose of the preform rotor 22 driving the preform 220 to move along the second track 20, but the preform 220 itself does not rotate. When passing through the heating box 3, directional heating is achieved. Combined with the subsequent preform transfer and positioning device (patent pending), the purpose of directional mold closing and bottle blowing is achieved.

[0044] The improvement of this utility model device lies in the use of mechanical synchronous rotation combined with single-sided heating to replace the complex temperature control system. The assembly and coordination of the various components involved, such as spring 115, heating tube 31, gear transmission and sprocket mechanism, are existing technologies or materials. The relevant technical personnel can directly purchase or order them from the market according to the required product model and specifications.

[0045] All electrical components mentioned in the text are connected to an external main controller and 220V AC mains power or industrial power. The main controller can be a conventional known device such as a computer that plays a control role.

[0046] The above description is merely a preferred embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It is obvious to those skilled in the art that this utility model is not limited to the details of the above embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A synchronous directional heating device for a linear blow molding machine, comprising a worktable (4), a main shaft rotation mechanism (2) mounted on the worktable (4), and a plurality of blank-carrying rotors (22) mounted on a second track (20) of the main shaft rotation mechanism (2), characterized in that, The workbench (4) is also equipped with a synchronous orientation mechanism (1). The synchronous orientation mechanism (1) includes a first track (10). The first track (10) and the second track (20) are provided with parallel straight tracks. Several synchronous limiting components (11) are movably installed on the first track (10). The synchronous limiting components (11) are provided with elastically supported clamping plates (110). The preform (220) on the preform rotor (22) is provided with a slot, and the slot corresponds to the position of the clamping plate (110). Heating chamber (3) heats the preform (220) that is engaged with the clamping plate (110) to stop its rotation.

2. The synchronous directional heating device for a linear blow molding machine according to claim 1, characterized in that, The main shaft rotation mechanism (2) includes a second dial (23), which drives the blank rotor (22) into a straight track that is parallel to each other. The synchronous orientation mechanism (1) includes a first dial (12), which drives the synchronous limiting component (11) into a straight track that is parallel to each other.

3. A synchronised orienting and heating apparatus for use on a linear bottle blowing machine as claimed in claim 2, characterised in that, The blank rotor (22) and the synchronous limiting assembly (11) simultaneously enter a parallel linear track. A heating box (3) is installed above the parallel linear track, and a heating tube (31) is installed on one side of the box body (30) of the heating box (3).

4. A simultaneous orienting and heating apparatus for use on a linear bottle blowing machine as defined in claim 2, wherein The synchronous limiting component (11) includes a connecting plate (116), on which two fixing seats (112) are fixed. A movable block (111) is elastically installed on the fixing seat (112), and a card plate (110) is fixed on the movable block (111).

5. A simultaneous orienting and heating apparatus for use on a linear bottle blowing machine as defined in claim 4, wherein A guide post (114) is movably connected between the fixed seat (112) and the movable block (111), and a spring (115) is fitted on the outside of the guide post (114). The fixed seat (112) and the movable block (111) are also connected and limited by a limiting bolt (113).

6. A simultaneous orienting and heating apparatus for use on a linear bottle blowing machine as defined in claim 5, wherein The connecting plate (116) is also equipped with two first rotating shafts (117), and a first outer bearing (118) is installed on the outside of the first rotating shaft (117). The first outer bearing (118) is movably installed in the first track (10) and cooperates with the first dial (12).

7. A simultaneous orienting and heating apparatus for use on a linear bottle blowing machine as defined in claim 4, wherein The card plate (110) is fixed in the slot on the movable block (111) by screws, and the width of the card plate (110) and the slot are matched.

8. A simultaneous orienting and heating apparatus for use on a linear bottle blowing machine as defined in claim 2, wherein The preform rotor (22) includes a second rotating shaft (222) and a driven sprocket (221). The preform (220) is located on the second rotating shaft (222). The driven sprocket (221) is fixed outside the second rotating shaft (222). A second outer bearing (223) is installed outside the second rotating shaft (222). The second outer bearing (223) is movably installed in the second track (20) and cooperates with the second dial (23).

9. A synchronous directional heating device for a linear blow molding machine according to claim 8, characterized in that, It also includes a transmission mechanism (6), which includes a driving gear (64) and a driven gear (63) meshing with each other. The driving gear (64) is fixed on the driving shaft (62), and a second dial (23) is mounted on the driving shaft (62). The driven gear (63) is fixed on the driven shaft (61), and a first dial (12) is mounted on the driven shaft (61).

10. A simultaneous orienting and heating apparatus for use on a linear bottle blowing machine as defined in claim 9, wherein The main shaft rotating mechanism (2) further comprises a chain (21) cooperating with a driven sprocket (221).

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