Bottle preform feeding device

Abstract

The utility model relates to the technical field of injection molding processing, in particular to a bottle preform feeding device which comprises a climbing conveyor, a bottle preform unscrambler and a flat plate conveyor, a cooling fan is arranged on the top of the flat plate conveyor, and the climbing conveyor and the bottle preform unscrambler located on the left side of the climbing conveyor are fixedly installed on the left side of the flat plate conveyor through a machine frame. According to the device, the material receiving hopper can receive materials from the lower portion as shown in the figure 2, receive materials from the upper portion as shown in the figure 3 and receive materials from the middle position as shown in the figure 1, feeding can be conducted in a lower mode, a middle mode and an upper mode through automatic adjustment according to the requirements of actual use scenes, the application range is wider, and the material receiving efficiency is improved. And when material receiving needs to be conducted at transition points except for the upper material receiving height, the middle material receiving height and the lower material receiving height, the fastening screws can be screwed out, the sliding protective cover can stop at any transition point position for material receiving by screwing the fastening screws again, the material receiving height is adjusted more conveniently and freely, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding processing, in particular to a blank feeding device for bottle preforms. Background Art

[0002] PET bottle preforms are typical injection molding products. Due to their strong applicability, they are widely used in fields such as daily necessities and daily chemical packaging. In the existing technology, the preparation of PET bottle preforms first undergoes the injection preform process, then the stretch blow molding process, and finally the demolding process. After the bottle preforms are formed, they need to be transported to a bottle preform orienter for sorting. After sorting, processes such as gate trimming, inspection, and stretch blow molding are carried out. However, a general blank feeding device for transporting bottle preforms to the bottle preform orienter is, for example, a PET bottle preform gate trimming device with the application number CN201410393957.7. It includes a device body, and a feeding unit is provided at the front end of the device body. The front end of the feeding unit is provided with a feeding mechanism with a certain slope... However, this solution directly uses an inclined conveyor belt transmission mechanism with a protective cover and a hopper-shaped feeding mechanism for feeding, and lacks vertical sliding adjustment of the protective cover on the conveyor belt transmission mechanism and the hopper-shaped feeding mechanism to adapt to different blank dropping heights. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the defect in the existing technology that there is no vertical sliding adjustment of the protective cover on the conveyor belt transmission mechanism and the hopper-shaped feeding mechanism to adapt to different blank dropping heights, and to propose a blank feeding device for bottle preforms.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] Design a blank feeding device for bottle preforms, including a climbing conveyor, a bottle preform orienter, and a flat conveyor with a cooling fan at the top. The climbing conveyor and the bottle preform orienter on the left side of the climbing conveyor are fixedly installed on the left side of the flat conveyor through a frame. A lifting plate is fixedly arranged on the conveyor belt of the climbing conveyor. A pair of guide rails are fixedly arranged on both sides of the top of the climbing conveyor. An upper slider and a lower slider are slidably arranged on the guide rails through a positioning device. The inner side of the lower slider is fixedly connected with a receiving hopper, and the inner side of the upper slider is fixedly connected with a protective cover. The lower end of the protective cover is connected to the receiving hopper through a connecting device. A lifting plate groove matching with the lifting plate is opened at the bottom of the receiving hopper, and a rotating shaft is rotatably arranged at the top of the lifting plate groove through a reset device. An activity plate matching with the lifting plate groove is sleeved on the outer wall of the rotating shaft. One end of the activity plate outside the rotating shaft is provided with a 1 / 4 circular chamfer on the upper side and coaxial with the rotating shaft. The blank discharging port of the flat conveyor is located directly above the receiving hopper, and the upper end of the climbing conveyor is located directly above the right end of the bottle preform orienter.

[0006] Preferably, the reset device includes a disc and a torsion spring. A disc is fixedly provided at the front end of the rotating shaft, a torsion spring is sleeved on the outer wall of the rotating shaft, and the front and rear ends of the torsion spring are respectively fixedly connected to the disc and the material receiving hopper.

[0007] Preferably, the connecting device includes an elastic connecting plate, a clamping hole, a clamping block, and a chamfer. Elastic connecting plates are fixedly provided on the front and rear end faces of the material receiving hopper. Clamping holes are formed on the front and rear end faces at the lower end of the protective cover. A clamping block is inserted into the clamping hole, and a chamfer is formed on the inner side of the upper end of the clamping block. One end of a pair of clamping blocks away from each other is fixedly connected to the elastic connecting plate.

[0008] Preferably, an arc-shaped plate for facilitating finger insertion and lifting is integrally formed at the upper end of the elastic connecting plate.

[0009] Preferably, the positioning device includes a boss and a fastening screw. A boss is integrally formed on the upper end face of the upper slider. A threaded hole is formed on the upper end face of the boss, and a fastening screw is threadedly connected in the threaded hole. The lower end of the fastening screw penetrates through the upper slider and abuts against the guide rail.

[0010] Preferably, an arc-shaped cover matching the shape of the upper end of the climbing conveyor is installed at the upper end of the climbing conveyor, and the arc-shaped cover is connected to the protective cover through an installation device.

[0011] Preferably, the installation device includes an upper connecting plate and a lower connecting plate. Lower connecting plates located at the top are fixedly provided on both the front and rear sides of the protective cover. Upper connecting plates located at the bottom are fixedly provided on the front and rear end faces of the arc-shaped cover, and a cylinder is integrally formed at the bottom of the connecting plate. A clamping groove is formed on the upper end face of the lower connecting plate, and the cylinder at the bottom of the upper connecting plate is slidably arranged in the clamping groove.

[0012] The beneficial effects of a preform feeding device proposed by the present utility model are as follows: This device can not only make the material receiving hopper receive materials below as shown in Figure 2 , receive materials above as shown in Figure 3 , and receive materials at the middle position as shown in Figure 1 . It can be adjusted by itself according to the requirements of the actual use scenario to three feeding methods: lower, middle, and upper, with a wider application range. Moreover, when it is necessary to receive materials at the transition points between the upper, middle, and lower three feeding heights, the fastening screw can be screwed out to rotate the sliding protective cover and then the fastening screw can be screwed tightly to stop at any transition point for receiving materials. The adjustment of the receiving height is more convenient and freer, and the application range is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of a preform feeding device proposed by the present utility model;

[0014] Figure 2Schematic diagram of the bottom material receiving structure of a preform feeding device proposed by the present utility model;

[0015] Figure 3 Schematic diagram of the top material receiving structure of a preform feeding device proposed by the present utility model;

[0016] Figure 4 Schematic diagram of the conveyor belt structure of a preform feeding device proposed by the present utility model;

[0017] Figure 5 Enlarged view of area A of a preform feeding device proposed by the present utility model;

[0018] Figure 6 Enlarged view of area B of a preform feeding device proposed by the present utility model;

[0019] Figure 7 Enlarged view of area C of a preform feeding device proposed by the present utility model.

[0020] In the figure: 1, frame; 2, preform arranging device; 3, arc cover; 4, climbing conveyor; 5, protective cover; 6, cooling fan; 7, flat conveyor; 8, material receiving hopper; 9, lifting plate; 10, upper connecting plate; 11, lower connecting plate; 12, upper slider; 13, lower slider; 14, guide rail; 15, elastic connecting plate; 16, clamping block; 17, rotating shaft; 18, disc; 19, torsion spring; 20, movable plate; 21, convex platform; 22, fastening screw; 23, clamping hole; 24, chamfer. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Refer to Figure 1-7, A preform feeding device, including a climbing conveyor 4, a preform arranging device 2, and a flat conveyor 7 with a cooling fan 6 installed on the top. The left side of the flat conveyor 7 is fixedly installed with a climbing conveyor 4 and a preform arranging device 2 located on the left side of the climbing conveyor 4 through a frame 1. A lifting plate 9 is fixedly arranged on the conveyor belt of the climbing conveyor 4. A pair of guide rails 14 are fixedly arranged on both sides of the top of the climbing conveyor 4. An upper slider 12 and a lower slider 13 are slidably arranged on the guide rails 14 through a positioning device. The inner side of the lower slider 13 is fixedly connected with a receiving hopper 8. The inner side of the upper slider 12 is fixedly connected with a protective cover 5. The lower end of the protective cover 5 is connected to the receiving hopper 8 through a connecting device. The bottom of the receiving hopper 8 is provided with a lifting plate groove that matches the lifting plate 9. The top of the lifting plate groove is rotatably provided with a rotating shaft 17 through a reset device. The outer wall of the rotating shaft 17 is sleeved with a movable plate 20 that matches the lifting plate groove. One end of the movable plate 20 outside the rotating shaft 17 is provided with a 1 / 4 circular chamfer on the upper side and coaxial with the rotating shaft 17. The discharge port of the flat conveyor 7 is located directly above the receiving hopper 8. The upper end of the climbing conveyor 4 is located directly above the right end of the preform arranging device 2.

[0023] The reset device includes a disc 18 and a torsion spring 19. The front end of the rotating shaft 17 is fixedly provided with a disc 18. The outer wall of the rotating shaft 17 is sleeved with a torsion spring 19. The front and rear ends of the torsion spring 19 are respectively fixedly connected to the disc 18 and the receiving hopper 8.

[0024] The connecting device includes an elastic connecting plate 15, a clamping hole 23, a clamping block 16, and a chamfer 24. Elastic connecting plates 15 are fixedly arranged on the front and rear end faces of the receiving hopper 8. Clamping holes 23 are opened on the front and rear end faces of the lower end of the protective cover 5. A clamping block 16 is inserted into the inside of the clamping hole 23. A chamfer 24 is opened on the inner side of the upper end of the clamping block 16. One end of a pair of clamping blocks 16 away from each other is fixedly connected to the elastic connecting plate 15.

[0025] An arc-shaped plate that is convenient for fingers to insert and lift is integrally formed at the upper end of the elastic connecting plate 15.

[0026] The positioning device includes a boss 21 and a fastening screw 22. A boss 21 is integrally formed on the upper end face of the upper slider 12. A threaded hole is opened on the upper end face of the boss 21. A fastening screw 22 is threadedly connected in the threaded hole. The lower end of the fastening screw 22 penetrates through the upper slider 12 and abuts against the guide rail 14.

[0027] An arc-shaped cover 3 that matches the shape of the upper end of the climbing conveyor 4 is installed at the upper end of the climbing conveyor 4. The top of the protective cover 5 is connected to the arc-shaped cover 3 through an installation device.

[0028] The installation device includes an upper connecting plate 10 and a lower connecting plate 11. Lower connecting plates 11 located at the top are fixedly provided on both the front and rear sides of the protective cover 5. Connecting plates 10 located at the bottom are fixedly provided on both the front and rear end faces of the arc-shaped cover 3. A cylinder is integrally formed at the bottom of the connecting plate 10, and a card slot is provided on the upper end face of the lower connecting plate 11, and the cylinder at the bottom of the upper connecting plate 10 is slidably arranged in the card slot.

[0029] Working principle: The device cools the just injection-molded bottle preforms conveyed by the flat conveyor 7 through the cooling fan 6, and the cooled bottle preforms fall into the receiving hopper 8. The climbing conveyor 4 drives the lifting plate 9 to push open the movable plate 20 and lift the bottle preforms in the receiving hopper 8 upward and finally put them into the bottle preform orienting device 2 for sorting. After the lifting plate 9 disengages from the receiving hopper 8, the movable plate 20 resets under the action of the torsion spring 19 and closes the lifting plate groove to prevent material leakage, and the protective cover 5 intercepts the bottle preforms on both sides; when the discharge port of the flat conveyor 7 is at the lowest end, as Figure 2 shown, the protective cover 5 is lowered by screwing out the fastening screw 22 and slid to the lowest end and then the fastening screw 22 is screwed tight, so that the receiving hopper 8 can receive materials below; when the discharge port of the flat conveyor 7 is at the highest end, as Figure 3 shown, the devices such as the climbing conveyor 4 and the receiving hopper 8 are directly disassembled and then the discharge port of the flat conveyor 7 is placed above the bottle preform orienting device 2; when the discharge port of the flat conveyor 7 is at the middle position, as Figure 1 shown, the protective cover 5 with half of its length is replaced and the arc-shaped cover 3 is installed. The arc-shaped cover 3 is fixed to the upper half section and then the receiving hopper 8 is installed at the bottom of the protective cover 5, so that the receiving hopper 8 can receive materials at the middle position; when it is necessary to receive materials at the transition points other than the upper, middle, and lower three receiving heights, the fastening screw 22 can be screwed out to make the sliding protective cover 5 and then the fastening screw 22 is screwed tight to stop at any transition point for receiving materials.

[0030] This device can not only make the receiving hopper 8 receive materials below as Figure 2 shown, receive materials above as Figure 3 shown, and make the receiving hopper 8 receive materials at the middle position as Figure 1 shown. It can be adjusted by itself according to the actual usage scenario requirements to three feeding methods: lower, middle, and upper, with a wider application range. Moreover, when it is necessary to receive materials at the transition points other than the upper, middle, and lower three receiving heights, the fastening screw 22 can be screwed out to make the sliding protective cover 5 and then the fastening screw 22 is screwed tight to stop at any transition point for receiving materials. The adjustment of the receiving height is more convenient and freer, and the application range is wider.

[0031] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A preform feeding device, comprising a climbing conveyor (4), a preform unscrambler (2) and a flat conveyor (7) with a cooling fan (6) on the top, characterized in that: A climbing conveyor (4) and a preform unscrambler (2) located on the left side of the climbing conveyor (4) are fixedly installed on the left side of the flat conveyor (7) through a frame (1); a lifting plate (9) is fixedly provided on the conveyor belt of the climbing conveyor (4); a pair of guide rails (14) are fixedly provided on both sides of the top of the climbing conveyor (4); an upper slider (12) and a lower slider (13) are slidably provided on the guide rails (14) through a positioning device, and a receiving hopper (8) is fixedly connected to the inner side of the lower slider (13); a protective cover (5) is fixedly connected to the inner side of the upper slider (12); and the lower end of the protective cover (5) is connected to the inner side of the upper slider (12). The device is connected to a receiving hopper (8), the bottom of the receiving hopper (8) is provided with a lifting plate groove matched with a lifting plate (9), and a rotating shaft (17) is provided at the top of the lifting plate groove for rotation through a reset device, the outer wall of the rotating shaft (17) is sleeved with a movable plate (20) matched with the lifting plate groove, and one end of the movable plate (20) located outside the rotating shaft (17) is provided with a 1 / 4 round chamfer located on the upper side and coaxial with the rotating shaft (17), the unloading port of the flat plate conveyor (7) is located directly above the receiving hopper (8), and the uppermost end of the climbing conveyor (4) is located directly above the right end of the preform bottle unscrambler (2).

2. A preform feeding device according to claim 1, characterized in that: The reset device comprises a disc (18) and a torsion spring (19); the disc (18) is fixedly arranged at the front end of the rotating shaft (17); the torsion spring (19) is sleeved on the outer wall of the rotating shaft (17); and the front and rear ends of the torsion spring (19) are respectively fixedly connected to the disc (18) and the receiving hopper (8).

3. The preform feeding device according to claim 1, characterized in that: The connecting device comprises an elastic connecting plate (15), a clamping hole (23), a clamping block (16), and a chamfer (24); the front and rear end surfaces of the receiving hopper (8) are both fixedly provided with the elastic connecting plate (15); the front and rear end surfaces of the lower end of the protective cover (5) are both provided with a clamping hole (23); a clamping block (16) is inserted into the inside of the clamping hole (23); and a chamfer (24) is provided on the inner side of the upper end of the clamping block (16); and a pair of ends of the clamping blocks (16) away from each other are fixedly connected to the elastic connecting plate (15).

4. The preform feeding device according to claim 3, characterized in that: The upper end of the elastic connecting plate (15) is integrally formed with an arc-shaped plate for easy insertion and lifting of fingers.

5. The preform feeding device according to claim 1, characterized in that: The positioning device comprises a boss (21) and a fastening screw (22); the upper end surface of the upper slider (12) is integrally formed with the boss (21); the upper end surface of the boss (21) is provided with a threaded hole, and the threaded hole is threadedly connected with the fastening screw (22); the lower end of the fastening screw (22) passes through the upper slider (12) and abuts against the guide rail (14).

6. The preform feeding device according to claim 1, characterized in that: The upper end of the climbing conveyor (4) is equipped with an arc-shaped cover (3) matching the shape of the upper end of the climbing conveyor (4), and the top of the protective cover (5) is connected to the arc-shaped cover (3) via a mounting device.

7. The preform feeding device according to claim 6, characterized in that: The mounting device comprises an upper connecting plate (10) and a lower connecting plate (11); the lower connecting plate (11) located at the top is fixedly provided on both the front and rear sides of the protective cover (5); the connecting plates (10) located at the bottom are fixedly provided on the front and rear end surfaces of the arc-shaped cover (3); a cylinder is integrally formed at the bottom of the connecting plate (10); a slot is provided on the upper end surface of the lower connecting plate (11), and the cylinder at the bottom of the upper connecting plate (10) is slidably provided in the slot.

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