Variable pitch preform extractor for a bottle blowing machine

Abstract

The utility model relates to bottle blowing machine technical field, the utility model provides a kind of variable distance embryo taking device for bottle blowing machine, it includes operation platform, the operation platform top is fixed with alternate component, the operation platform top both sides are fixed with conveying belt, detection component is installed on the conveying belt, the alternate component includes support block, the support block side is fixed with first motor, first variable distance screw rod is fixed with the first motor output, first variable distance screw rod is threadedly connected with sliding block, embryo taking clamp is fixed in the sliding block side, the operation platform top is fixed with first support plate. Through the above technical scheme, the technical problem that part of the bottle embryo not being grabbed will be heated again in the interval grabbing of bottle embryo in the variable distance embryo taking device for bottle blowing machine in the related art during use, thereby leading to the shrinkage deformation of bottle embryo body, and the energy consumption of device is increased.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, specifically to a variable-pitch preform picking device for blow molding machines. Background Technology

[0002] As the global packaging industry accelerates its transformation towards automation and intelligence, the efficiency and flexibility of the preform handling stage of blow molding machines, as core equipment, have become key factors restricting the overall production line. Variable-pitch preform handling devices can achieve continuous production of multiple bottle sizes by dynamically adjusting the preform spacing, reducing equipment downtime for mold changes. For example, in the beverage industry, during peak summer seasons, it is necessary to quickly switch between different bottle capacities (such as 300ml, 500ml, and 1L). Traditional fixed-pitch devices require manual adjustment of the mechanical structure, which can take several hours; while variable-pitch devices, driven by electricity or pneumatics, can complete the spacing adjustment within minutes, significantly improving the production line's response speed.

[0003] Chinese Patent CN221365801U discloses a variable-pitch preform picking device for a blow molding machine, relating to the field of preform picking devices. The device includes a mounting base and a slider slidably disposed on the top end face of the mounting base. A fixing post is provided on the top end face of the slider, and a preform picking box is disposed at one end of the fixing post. A chain is disposed on one side of the mounting base. This variable-pitch preform picking device for a blow molding machine, by providing a threaded rod on the top end face of the slider, and having two sets of clamping plates on the outer wall of the threaded rod clamping and fixing one end of the preform picking box to the fixing post, allows for adjustment of the position of one set of preform picking boxes at the slider under the action of the threaded connection. Correspondingly, the positions of other preform picking boxes at the chain can be adjusted to achieve variation in the spacing between multiple sets of preform picking boxes, meeting the needs of different preform picking rates, and demonstrating good practicality.

[0004] In the use of variable-pitch preform picking devices for blow molding machines, some preforms that are not picked up will be reheated during the interval picking process, which will cause the preform body to shrink and deform, and will also increase the energy consumption of the device. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a variable-pitch preform picking device for blow molding machines, which solves the technical problem that in the use of variable-pitch preform picking devices for blow molding machines, some preforms that are not picked up will be reheated during the interval picking process, resulting in shrinkage and deformation of the preform body and increased energy consumption of the device.

[0006] According to one aspect, at least one embodiment of the present invention provides a variable pitch preform taking device for a blow molding machine, comprising: an operating table, an alternating component fixed on the top of the operating table, conveyor belts fixed on both sides of the top of the operating table, and a detection component installed on the conveyor belts;

[0007] The alternating component includes a support block, a first motor fixed to the side of the support block, a first variable pitch screw fixed to the output end of the first motor, a sliding block threaded onto the first variable pitch screw, a blank-picking clamp fixed to the side of the sliding block, a first support plate fixed to the top of the operating table, the other end of the first variable pitch screw rotatably connected to the side of the first support plate, a synchronous gear rotatably connected to the other end of the first support plate, a toothed synchronous belt meshing with the synchronous gear, and a driven gear meshing with the other end of the toothed synchronous belt.

[0008] For example, in at least one embodiment of the present invention, a variable-pitch preform taking device for a blow molding machine is provided, which further includes: a guide rail fixed on the top of the operating table, and the end of the sliding block away from the preform taking clamp is slidably connected to the guide rail.

[0009] For example, in at least one embodiment of the present invention, a variable pitch preform taking device for a blow molding machine is provided, which further includes: a pressure sensor fixed on the side of the first support plate near the sliding block, a connecting groove opened on the top of the operating table, and the synchronous gear rotatably connected in the connecting groove.

[0010] For example, in at least one embodiment of the present invention, a variable pitch preform taking device for a blow molding machine is provided, which further includes: the driven gear is rotatably connected to the inner wall of the connecting groove, a transition gear is fixed on the driven gear, a second synchronous belt is meshed on the transition gear, a connecting gear is meshed on the other end of the second synchronous belt, and a second variable pitch screw is fixed on the other end of the connecting gear.

[0011] For example, in at least one embodiment of the present invention, a variable pitch preform taking device for a blow molding machine is provided, which further includes: a second support plate fixed on the top of the operating table, and a connecting gear rotatably connected to the side of the second support plate.

[0012] For example, in at least one embodiment of the present invention, a variable pitch preform taking device for a blow molding machine is provided, which further includes: the detection component includes a housing, a second motor is fixed to the top of the conveyor belt, a detection chamber is fixed through the output end of the second motor and the detection chamber is fixed inside the detection chamber, and a positioning sensor is fixed inside the housing.

[0013] For example, in at least one embodiment of the present invention, a variable pitch preform picking device for a blow molding machine is provided, which further includes: the detection chamber is rotatably connected to the outer shell, and through holes are provided on both sides of the detection chamber and the outer shell.

[0014] For example, in at least one embodiment of the present invention, a variable pitch preform taking device for a blow molding machine is provided, which further includes: a shielding curtain installed in the through hole on the side of the outer shell.

[0015] The beneficial effects of the embodiments of this utility model are as follows:

[0016] In this invention, by setting an alternating component, the preform removal device can take out the preforms alternately, thereby preventing the preforms from being missed and thus avoiding repeated heating. This not only improves the efficiency of preform removal, but also avoids deformation or shrinkage of the preform body due to repeated heating, and also prevents energy waste caused by repeated heating of the preforms. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the external structure of the variable-distance embryo-picking device in one embodiment of the present invention;

[0019] Figure 2 This is a three-dimensional side view of the alternating component in one embodiment of the present invention;

[0020] Figure 3 for Figure 2 Enlarged sectional view of the structure at point A in the middle;

[0021] Figure 4 This is a three-dimensional schematic diagram of the external structure of the detection component in one embodiment of the present invention;

[0022] Figure 5 This is an enlarged cross-sectional view of the detection component in one embodiment of the present invention.

[0023] In the diagram: 1. Operating table; 2. Alternating assembly; 21. Support block; 22. First motor; 23. First variable pitch screw; 24. Sliding block; 25. Embryo clamp; 26. First support plate; 27. Connecting groove; 28. Synchronous gear; 29. ​​Toothed synchronous belt; 210. Driven gear; 211. Adapter gear; 212. Second synchronous belt; 213. Connecting gear; 214. Second support plate; 215. Second variable pitch screw; 216. Pressure sensor; 217. Guide rail; 3. Detection assembly; 31. Housing; 32. Second motor; 33. Detection chamber; 34. Detection sensor; 35. Through hole; 36. Positioning sensor; 37. Shielding curtain; 4. Conveyor belt. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0025] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0026] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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.

[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] like Figures 1-3As shown, it illustrates a variable pitch preform taking device for a blow molding machine in one embodiment of the present invention, including an operating table 1, an alternating component 2 fixed on the top of the operating table 1, conveyor belts 4 fixed on both sides of the top of the operating table 1, and a detection component 3 installed on the conveyor belts 4.

[0031] The alternating component 2 includes a support block 21, a first motor 22 fixed to the side of the support block 21, a first variable pitch screw 23 fixed to the output end of the first motor 22, a sliding block 24 threadedly connected to the first variable pitch screw 23, a embryo-taking clamp 25 fixed to the side of the sliding block 24, a first support plate 26 fixed to the top of the operating table 1, the other end of the first variable pitch screw 23 rotatably connected to the side of the first support plate 26, a synchronous gear 28 rotatably connected to the other end of the first support plate 26, a toothed synchronous belt 29 meshing with the synchronous gear 28, and a driven gear 210 meshing with the other end of the toothed synchronous belt 29.

[0032] In some examples, a guide rail 217 is fixed on the top of the operating table 1, and the end of the sliding block 24 away from the embryo clamp 25 is slidably connected to the guide rail 217. The guide rail 217 is used to fix the sliding direction of the sliding block 24, thereby preventing the sliding block 24 from rotating with the rotation of the first variable pitch screw 23.

[0033] In some examples, a pressure sensor 216 is fixed on the side of the first support plate 26 near the sliding block 24. A connecting groove 27 is provided on the top of the operating table 1. The synchronous gear 28 is rotatably connected in the connecting groove 27. The pressure sensor 216 is an M325D-01000B-400BG type sensor, which is used to control the synchronous gear 28 to rotate via PLC.

[0034] In some examples, the driven gear 210 is rotatably connected to the inner wall of the connecting groove 27. A transition gear 211 is fixed on the driven gear 210. A second synchronous belt 212 is meshed on the transition gear 211. A connecting gear 213 is meshed on the other end of the second synchronous belt 212. A second variable pitch screw 215 is fixed on the other end of the connecting gear 213. The same number of sliding blocks 24 as the first variable pitch screw 23 are slidably connected on the second variable pitch screw 215. The second variable pitch screw 215 can rotate under the drive of the second synchronous belt 212 and the toothed synchronous belt 29.

[0035] In some examples, a second support plate 214 is fixed to the top of the operating table 1, and a connecting gear 213 is rotatably connected to the side of the second support plate 214. The second support plate 214 is used to support the second variable pitch screw 215.

[0036] For example, such as Figure 3As shown, when the heated preform needs to be removed, the PLC on the operating table 1 first controls the first motor 22 to drive the first variable-pitch screw 23 to rotate, thereby causing the sliding block 24 on the first variable-pitch screw 23 to drive the preform tweezers 25 to move with varying pitch on the first variable-pitch screw 23. When the sliding block 24 moves close to the first support plate 26, the preform tweezers 25 on the side of the sliding block 24 removes the preform. At the same time, the sliding block 24 contacts the pressure sensor 216 on the side of the first support plate 26, thereby causing the pressure sensor 216 to detect and sense the pressure. This, in turn, causes the PLC to control the synchronous gear 28 to rotate, thus enabling the synchronous gear 28 to rotate. Gear 28 drives toothed synchronous belt 29 to mesh with driven gear 210, so that the adapter gear 211 on driven gear 210 synchronously drives second synchronous belt 212 to mesh with connecting gear 213, thereby causing connecting gear 213 to drive second variable pitch screw 215 to rotate. This allows preform pickers 25 on second variable pitch screw 215 to pick up preforms after picking them up on sliding block 24, and then pick up preforms that have not been picked up. This allows the two sets of preform pickers 25 to pick up preforms alternately, so that all preforms can be picked up, thereby reducing the need for repeated heating of preforms that have not been picked up.

[0037] like Figures 4-5 As shown, this invention illustrates a variable-pitch preform picking device for a blow molding machine in another embodiment of the present invention. The detection component 3 includes a housing 31, a second motor 32 fixed to the top of the conveyor belt 4, a detection chamber 33 fixed to the output end of the second motor 32 through the conveyor belt 4, a detection sensor 34 fixed inside the detection chamber 33, and a positioning sensor 36 fixed inside the housing 31. The detection sensor 34 is a UST-M30PS-TMS-839 sensor used to detect the condition of the preform's outer surface, and the positioning sensor 36 is an IPS-001 sensor used to detect the position of the preform.

[0038] In some examples, the detection chamber 33 is rotatably connected to the outer shell 31, and through holes 35 are provided on both sides of the detection chamber 33 and the outer shell 31. The through holes 35 are used to allow the preform to move between the outer shell 31 and the detection chamber 33.

[0039] In some examples, a shielding curtain 37 is installed in the through hole 35 on the side of the housing 31. The shielding curtain 37 is used to shield the housing 31 so that the detection inside the detection chamber 33 is not affected by external light.

[0040] For example, such as Figure 5As shown, when the preform is transported by the conveyor belt 4, when the preform passes through the outer shell 31, it first touches the shielding curtain 37 to enter the outer shell 31. When the preform moves directly above the positioning sensor 36, the PLC controls the second motor 32 to drive the detection chamber 33 to rotate. This causes the detection chamber 33 to drive the through hole 35 to rotate one revolution in the outer shell 31, allowing the through hole 35 to perform a comprehensive inspection of the outer surface of the preform. This ensures the integrity of the preform surface and allows for timely processing of defective preforms. After the preform inspection is completed, it moves to the outside of the outer shell 31 through the shielding curtain 37 at the other end of the outer shell 31.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A variable pitch preform pickup device for a bottle blowing machine, characterized by, include: An operating table (1) is provided, with an alternating component (2) fixed on the top of the operating table (1) and conveyor belts (4) fixed on both sides of the top of the operating table (1). A detection component (3) is installed on the conveyor belts (4). The alternating component (2) includes a support block (21), a first motor (22) is fixed to the side of the support block (21), a first variable pitch screw (23) is fixed to the output end of the first motor (22), a sliding block (24) is threaded onto the first variable pitch screw (23), a embryo-taking clamp (25) is fixed to the side of the sliding block (24), a first support plate (26) is fixed to the top of the operating table (1), the other end of the first variable pitch screw (23) is rotatably connected to the side of the first support plate (26), the other end of the first support plate (26) is rotatably connected to a synchronous gear (28), a toothed synchronous belt (29) is meshed onto the synchronous gear (28), and the other end of the toothed synchronous belt (29) is meshed with a driven gear (210).

2. A variable pitch preform pickup device for a bottle blowing machine as defined in claim 1, wherein The top of the operating table (1) is fixed with a guide rail (217), and the end of the sliding block (24) away from the embryo clamp (25) is slidably connected to the guide rail (217).

3. A variable pitch preform pickup device for a bottle blowing machine as defined in claim 1, wherein A pressure sensor (216) is fixed on the side of the first support plate (26) near the sliding block (24). A connecting groove (27) is provided on the top of the operating table (1). The synchronous gear (28) is rotatably connected in the connecting groove (27).

4. A variable pitch preform pickup device for a bottle blowing machine as defined in claim 3, wherein The driven gear (210) is rotatably connected to the inner wall of the connecting groove (27). A transition gear (211) is fixed on the driven gear (210). A second synchronous belt (212) is meshed on the transition gear (211). A connecting gear (213) is meshed on the other end of the second synchronous belt (212). A second variable pitch screw (215) is fixed on the other end of the connecting gear (213).

5. A variable pitch preform pickup device for a bottle blowing machine as defined in claim 4, wherein, The top of the operating table (1) is fixed with a second support plate (214), and the connecting gear (213) is rotatably connected to the side of the second support plate (214).

6. A variable pitch preform pickup device for a bottle blowing machine as defined in claim 1, wherein The detection component (3) includes a housing (31), a second motor (32) is fixed on the top of the conveyor belt (4), the output end of the second motor (32) passes through the conveyor belt (4) and is fixed to a detection chamber (33), a detection sensor (34) is fixed inside the detection chamber (33), and a positioning sensor (36) is fixed inside the housing (31).

7. A variable pitch preform pickup device for a bottle blowing machine as defined in claim 6, wherein The detection chamber (33) is rotatably connected to the outer shell (31), and through holes (35) are provided on both sides of the detection chamber (33) and the outer shell (31).

8. A variable pitch preform pickup device for a bottle blowing machine as defined in claim 7, wherein, A screen curtain (37) is installed in the through hole (35) on the side of the outer shell (31).

Images