Clamping type linear conveying device for bottle preform
By designing a clamping linear conveyor, which utilizes a motor-driven screw rotation and a sliding groove, independent clamping and spacing adjustment of bottle preforms are achieved. This solves the problems of collision and clamping difficulties caused by closely arranged bottle preforms, and improves production efficiency and stability.
Patent Information
- Application Number
- CN202520096981.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-16
AI Technical Summary
When existing preforms are transported using conveyor belts, the preforms are arranged close together, which can easily lead to collisions or compression between them, and it is impossible to accurately clamp the target preform.
A clamping linear conveying device was designed, comprising a frame, a lead screw, a motor, and a clamping assembly. Through the cooperation of the clamping assembly and the drive assembly, the device enables independent clamping of each preform and adapts to clamping requirements of different sizes. The motor drives the lead screw to rotate, the slide groove cooperates with the slide rail, the clamping assembly moves linearly along the slide rail, and the drive assembly adjusts the clamping spacing.
It improves the automation level and production efficiency of plastic bottle production lines, ensures the stability and accuracy of preforms during the conveying process, avoids collisions and clamping failures, and adapts to the clamping needs of preforms of different sizes and shapes.
Smart Images
Figure CN223659033U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of conveying devices, in particular to a clamping type linear conveying device for bottle preforms. BACKGROUND
[0002] In the existing plastic bottle production process, the conveying of bottle preforms is a crucial link. Tradically, bottle preforms are usually conveyed in a centralized manner by using conveying belts with fixed intervals. This conveying method meets the basic conveying requirements of bottle preforms to a certain extent. However, in actual application, since the intervals of bottle preforms on the conveying belt are fixed, and in order to fully utilize the space of the conveying belt, the bottle preforms are often arranged in close proximity to each other. This close arrangement is prone to cause mutual collision or extrusion of bottle preforms during conveying when the number of bottle preforms is large and the conveying speed is high. In addition, when the bottle preforms are conveyed to a turnover table for clamping and turnover, the turnover table is prone to fail to accurately clamp the target bottle preform due to the interference of adjacent bottle preforms, which not only increases the clamping difficulty, but also easily causes damage or clamping failure of the bottle preforms. SUMMARY
[0003] The present application solves the problem that, in the prior art, bottle preforms are arranged in close proximity to each other when conveyed by using a conveying belt, which not only easily causes mutual collision or extrusion of bottle preforms during conveying, but also fails to accurately clamp the target bottle preform due to the interference of adjacent bottle preforms.
[0004] To solve the above technical problems, the present application provides a clamping type linear conveying device for bottle preforms, which comprises a frame, a lead screw and a motor. The frame is horizontally arranged and hollow inside. The lead screw is transversely arranged inside the frame and connected to the frame through a bearing seat. The surface of the lead screw is uniformly formed with an inwardly recessed sliding groove. The motor is arranged at one end outside the frame and connected to the lead screw. The frame is internally arranged with a clamping assembly which is driven by the lead screw and can linearly reciprocate along the sliding groove. The two sides of the frame are symmetrically arranged with drive assemblies connected to the clamping assembly, which are used to adjust the clamping interval of the clamping assembly to adapt to the clamping requirements of bottle preforms of different sizes.
[0005] Since the conveying device of the present application is designed with a clamping assembly and a drive assembly, through the cooperation of the clamping assembly and the drive assembly, independent clamping operation of each bottle preform can be realized, and the clamping requirements of bottle preforms of different sizes and shapes can be met, thereby improving the automation level and production efficiency of the plastic bottle production line, and solving the problem that, in the prior art, bottle preforms are arranged in close proximity to each other when conveyed by using a conveying belt, which not only easily causes mutual collision or extrusion of bottle preforms during conveying, but also fails to accurately clamp the target bottle preform due to the interference of adjacent bottle preforms. BRIEF DESCRIPTION OF DRAWINGS
[0006] Figure 1 This is a three-dimensional structural diagram of an embodiment.
[0007] Figure 2 This is a side view of the structure of an embodiment.
[0008] Figure 3 This is a top view of the structure of an embodiment.
[0009] Figure 4 This is a schematic diagram of the structure of an embodiment.
[0010] Figure 5 This is a schematic diagram of the drive component.
[0011] Figure 6 This is a schematic diagram of the clamping assembly.
[0012] In the diagram: 1. Frame; 2. Support leg; 3. Lead screw; 4. Motor; 5. Slide rail; 6. Clamping assembly; 7. Drive assembly; 8. Clamping block; 9. Support block; 10. Support plate; 11. Support block; 12. Base plate; 13. Protrusion; 14. Cylinder; 15. Support arm; 16. Support rod; 17. Slide rail; 18. Slider. Detailed Implementation
[0013] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0014] This application relates to a clamping linear conveying device for preforms, such as... Figures 1-6 As shown, the conveying device includes a frame 1, legs 2, a lead screw 3, a motor 4, a slide rail 5, a clamping assembly 6, and a drive assembly 7. The frame 1 is horizontally arranged and hollow inside. The bottom of the frame 1 is symmetrically and spaced apart with legs 2 to support the entire device and maintain stability. The lead screw 3 is placed horizontally inside the frame 1 and connected to the frame 1 through a bearing seat. The surface of the lead screw 3 has uniformly formed inwardly recessed grooves to cooperate with the drive part of the clamping assembly 6 to achieve linear motion. The motor 4 is arranged at one end of the outer side of the frame 1 and connected to the lead screw 3, serving as a power source to drive the lead screw 3 to rotate. The slide rail 5 is arranged along the centerline of the length direction inside the frame 1, serving as a guide and support to ensure that the clamping assembly 6 maintains a straight trajectory during movement. The clamping assembly 6 is arranged inside the frame 1 and can move linearly back and forth along the slide rail 5 driven by the lead screw 3. The drive assembly 7 is symmetrically arranged on both sides of the frame 1 and connected to the clamping assembly 6. The drive assembly 7 is used to adjust the clamping spacing of the clamping assembly 6 to adapt to the clamping requirements of bottle preforms of different sizes.
[0015] In operation, the motor 4 drives the screw rod 3 to rotate, and the sliding groove on the surface of the screw rod 3 cooperates with the clamping assembly 6 to push the clamping assembly 6 to move linearly along the sliding groove 5, and at the same time, the driving assembly 7 adjusts the clamping distance of the clamping assembly 6 according to the size and shape of the bottle blank, so as to ensure that the bottle blank is stably clamped.
[0016] The clamping assembly 6 includes a clamping block 8, a supporting block 9, a supporting plate 10, a supporting block 11, a bottom plate 12, and a protruding block 13. The bottom plate 12 is horizontally arranged inside the frame 1 as the basic support structure of the clamping assembly 6. The protruding block 13 is vertically arranged below the bottom plate 12 and is arranged inside the sliding groove 5 on the surface of the screw rod 3. The protruding block 13 cooperates with the spiral sliding groove on the surface of the screw rod 3 and can slide along the sliding groove when the screw rod 3 rotates. Through the cooperation of the protruding block 13 and the sliding groove, the spiral motion of the screw rod 3 is converted into the linear motion of the bottom plate 12 along the guide sliding groove 5. The supporting block 11 is arranged at the central position on the upper part of the bottom plate 12 and has a vertically upward opening U shape. The inside of the supporting block 11 is the main moving space of the clamping assembly 6 and is used to accommodate and support the supporting plate 10. The supporting plate 10 is symmetrically arranged inside the supporting block 11 and is hingedly connected with each other. The supporting plate 10 can rotate around the hinge point, so as to adjust the positions of the supporting block 9 and the clamping block 8 and adapt to bottle blanks of different sizes. The supporting block 9 is arranged on the top of the supporting plate 10 and is connected with the supporting plate 10. The supporting block 9 is used to support the clamping block 8 and transmit the clamping force to the bottle blank. The clamping block 8 is arranged on one side of the supporting block 9 and is used to directly clamp the bottle blank. An arc-shaped notch for clamping is formed in the inner side of the clamping block 8 and matches the shape of the bottle blank, so as to ensure stable clamping and prevent damage to the bottle blank.
[0017] In operation, the motor 4 drives the screw rod 3 to rotate, and the sliding groove on the surface of the screw rod 3 cooperates with the protruding block 13 below the bottom plate 12 to push the bottom plate 12 to move linearly along the guide sliding groove 5. At the same time, since the supporting plate 10 is hingedly connected with the supporting block 11, when it is necessary to clamp bottle blanks of different sizes, the rotating angle of the supporting plate 10 can be adjusted to change the positions of the supporting block 9 and the clamping block 8, so as to realize the clamping operation of bottle blanks of various sizes. Specifically, when the size of the bottle blank is large, the supporting plate 10 is rotated outward to increase the distance between the clamping blocks 8. When the size of the bottle blank is small, the supporting plate 10 is rotated inward to reduce the distance between the clamping blocks 8. In this way, the clamping assembly 6 can adapt to the clamping requirements of bottle blanks of different sizes and ensure the stability and accuracy of the bottle blank during the conveying process.
[0018] The driving assembly 7 comprises a cylinder 14, a support arm 15 and a support rod 16. The cylinder 14 is arranged outside the frame 1 and serves as the power source of the driving assembly 7. The cylinder 14 is connected to the control system through an air pipe to receive control signals and perform corresponding driving operations. The support arm 15 is symmetrically arranged at the two ends of the frame 1 in the length direction and is hingedly connected to the frame 1. The support arm 15 can be flipped around the hinge point to drive part of the clamping assembly 6 to move and adjust the clamping distance. The support rod 16 is arranged between the two support arms 15 and serves as a support. The support rod 16 is provided with a support block 9 that is slidably connected to the support rod 16. The support block 9 is used to transmit the movement force of the support rod 16 to the clamping block 8.
[0019] When it is necessary to adjust the clamping distance between the clamping blocks 8, the control system sends a control signal to the cylinder 14. After receiving the signal, the cylinder 14 generates a pushing force or a pulling force to drive the support rod 16 to move along its length direction. Since the support rod 16 is slidably connected to the support block 9, the movement of the support rod 16 will drive the support block 9 to move together. At the same time, since the support arm 15 is hingedly connected to the frame 1 and the support rod 16 is connected between the support arms 15, the movement of the support rod 16 will drive the support arm 15 to flip around the hinge point of the frame 1. This flipping operation will be transmitted to the clamping block 8 through the support block 9, so that the clamping block 8 also flips around an axis (such as the hinge point of the support block 11), thereby adjusting the clamping distance between the clamping blocks 8. Specifically, when the cylinder 14 pushes the support rod 16 to move in one direction, the support arm 15 will flip in the same direction to drive the clamping blocks 8 to move closer to or away from each other, thereby realizing the reduction or increase of the clamping distance. Conversely, when the cylinder 14 pulls the support rod 16 to move in the opposite direction, the support arm 15 will flip in the opposite direction, and the clamping distance will be increased or reduced accordingly.
[0020] In order to improve the stability of the linear reciprocating motion of the clamping assembly 6, a slide rail 17 and a slide block 18 are further arranged inside the frame 1 to serve as a guide. The slide rail 17 is arranged symmetrically and spaced apart along the length direction of the frame 1 to provide a stable guide path for the clamping assembly 6. The material and surface treatment of the slide rail 17 are carefully selected to ensure that it has good wear resistance and corrosion resistance, thereby prolonging the service life. The slide block 18 is arranged at the bottom of the bottom plate 12 and is connected with the slide rail 17. The design of the slide block 18 enables it to closely fit on the slide rail 17, reducing friction and shaking during movement and ensuring the stable movement of the clamping assembly 6.
[0021] When the motor 4 drives the screw rod 3 to rotate, the convex block 13 cooperates with the slide 5 on the surface of the screw rod 3 to push the bottom plate 12 to perform linear reciprocating motion along the guide slide 5 (here, the guide slide 5 mainly refers to the guide system composed of the slide rail 17 and the slide block 18). The slide block 18 will slide along the slide rail 17. Due to the guiding action of the slide rail 17, the movement trajectory of the bottom plate 12 (and the clamping assembly 6 connected thereto) will be strictly controlled to ensure that it moves stably along the length direction of the frame 1.
[0022] In use, first, according to the size of the bottle embryo to be transported, the clamping interval between the clamping blocks 8 is set by adjusting the driving assembly 7 (the air cylinder 14 as described above), then the bottle embryo is placed between the clamping blocks 8 of the clamping assembly 6, ensuring that the bottle embryo is stably clamped, so that each bottle embryo is independent of each other, realizing the operation of single clamping and fixing, during the transportation process, the clamping assembly 6 will maintain the clamping force on the bottle embryo, ensuring that the bottle embryo will not fall off or shift, the driving assembly 7 mainly consists of the motor 4, the lead screw 3, the protrusion 13 and the air cylinder 14, etc., which is used to drive the clamping assembly 6 to perform linear reciprocating motion and adjust the clamping interval, before starting the transportation, the motor 4 is started by the control system, so that the lead screw 3 rotates, thereby driving the bottom plate 12 (and the clamping assembly 6) to perform linear motion along the slide rail 17, if it is necessary to adjust the clamping interval, the air cylinder 14 can be sent a signal by the control system, so that it drives the support rod 16 and the support arm 15 to flip, thereby driving the clamping block 8 to adjust the clamping interval, when the motor 4 drives the lead screw 3 to rotate, the protrusion 13 cooperates with the sliding groove on the surface of the lead screw 3, pushing the bottom plate 12 to perform linear motion along the slide rail 17, the clamping assembly 6 is fixed on the bottom plate 12, so it moves together with the bottom plate 12, realizing the linear transportation of the bottle embryo, the cooperation between the slide rail 17 and the sliding block 18 ensures the stability of the clamping assembly 6 during the movement process, reducing the shaking and noise, when it is necessary to adjust the clamping interval, the control system sends a signal to the air cylinder 14, after receiving the signal, the air cylinder 14 generates a pushing force or a pulling force, driving the support rod 16 to move along its length direction, the movement of the support rod 16 drives the support arm 15 to flip, thereby transmitting to the clamping block 8 through the supporting block 9, so that the clamping block 8 flips around an axis, adjusting the clamping interval, at the same time, the bottom plate 12 of the clamping assembly 6 remains stationary or continues to perform linear motion along the slide rail 17 (depending on the specific control logic), ensuring that the adjustment of the clamping interval will not affect the transportation process of the bottle embryo, the cooperation between the clamping assembly 6 and the driving assembly 7 realizes the stable clamping and linear transportation of the bottle embryo, at the same time, it can flexibly adjust the clamping interval, adapting to the clamping requirements of bottle embryos of different sizes, this cooperation improves the versatility and flexibility of the device, so that the same device can be applied to the transportation tasks of bottle embryos of multiple different sizes, in addition, the guiding effect of the slide rail 17 and the sliding block 18 ensures the stability of the clamping assembly 6 during the movement process, reducing the wear and failure rate, prolonging the service life of the device.
[0023] In general, terms should be understood in contexts of their use. For example, the term "one or more" as used herein, can be used to describe any feature, structure, or characteristic in the singular or can be used to describe combinations of features, structures or characteristics, as is understood by those of ordinary skill in the art. Similarly, terms such as "a", "an" or "the" as used herein, can be understood to convey a singular usage or to convey a plural usage, as is understood by those of ordinary skill in the art.
[0024] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).
[0025] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A clamping linear conveying device for bottle preforms, comprising a frame, a lead screw, and a motor, characterized in that: The frame is horizontally arranged and hollow inside. The lead screw is placed horizontally inside the frame and connected to the frame through a bearing seat. The surface of the lead screw has uniformly formed inwardly recessed grooves. The motor is arranged at one end of the outer side of the frame and connected to the lead screw. Inside the frame, there is a clamping assembly that is driven by the lead screw and can move linearly back and forth along the slide. On both sides of the frame, there are drive assemblies connected to the clamping assembly to adjust the clamping distance of the clamping assembly to adapt to the clamping requirements of different sized preforms.
2. The clamping linear conveying device for preforms according to claim 1, characterized in that: The clamping assembly also includes a base plate, a protrusion, and a support block. The base plate is placed horizontally inside the frame, and a protrusion is arranged vertically below the base plate. The protrusion is placed inside the slide rail on the surface of the lead screw, and the protrusion cooperates with the spiral groove on the surface of the lead screw. The support block is arranged in the center of the upper part of the base plate.
3. The clamping linear conveying device for preforms according to claim 2, characterized in that: The clamping assembly also includes a support plate and a support block. The support plate is symmetrically arranged inside the support block and the two are hinged to each other. The support block is arranged on the top of the support plate and connected to the support plate. The clamping block is arranged on one side of the support block.
4. The clamping linear conveying device for preforms according to claim 3, characterized in that: The drive assembly includes a cylinder, a support arm, and a strut. The cylinder is located on the outside of the frame, the support arms are symmetrically arranged at both ends of the frame along its length and are hinged to them, and the struts are spaced apart between the two support arms.
5. The clamping linear conveying device for preforms according to claim 4, characterized in that: The support rod is equipped with a sliding support block.
6. The clamping linear conveying device for preforms according to claim 3, characterized in that: The inner side of the clamping block has an arc-shaped groove for clamping.
7. The clamping linear conveying device for preforms according to claim 3, characterized in that: The support block is U-shaped with an upward opening.
8. The clamping linear conveying device for preforms according to claim 1, characterized in that: A slide rail is arranged at the center line along the length of the frame.
9. The clamping linear conveying device for preforms according to claim 1, characterized in that: The bottom of the frame is symmetrically arranged with support legs at intervals.