Packaging device for pocketed springs
By combining the limiting rod and welding knife in the conveying device, the problems of uneven force and sliding deformation during the packaging of bag springs are solved, achieving uniform force and synchronous conveying, and improving the welding quality of bag springs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU LIANROU MACHINERY & EQUIPMENT CO LTD
- Filing Date
- 2024-12-18
- Publication Date
- 2026-06-19
AI Technical Summary
In existing bag spring sealing devices, uneven force is applied to the spring and fabric during the conveying process, causing relative sliding and deformation between the bag spring and the packaging bag, which affects product quality.
The first and second transmission chain groups in the conveying device are used for synchronous transmission. The spring and the fabric are clamped by the first and second limit rods. Combined with the ultrasonic welding of the first and second welding knives, uniform force and synchronous transmission are achieved, avoiding slippage and deformation.
This technology enables uniform force transmission between the bag spring and the packaging bag, avoiding slippage and deformation during transmission, ensuring welding quality, and improving product manufacturing quality.
Smart Images
Figure CN224376087U_ABST
Abstract
Description
[0001] This application is a divisional application of Chinese patent application entitled "Spring Transmission Device and Bag Spring Packaging Device", application number "202423134305.X", and application date December 18, 2024. Technical Field
[0002] This application relates to the field of pocket spring manufacturing technology, and more specifically, to a packaging device for pocket springs. Background Technology
[0003] Currently, packaging devices that use ultrasonic welding to seal bag springs typically use scrapers, scraper bars, or pushers to scrape or push the springs from the structural components into the bag before welding.
[0004] However, the applicant discovered that scraping or pushing the spring into the bag using a scraper, scraper bar, or pusher could cause the spring to deform. For example, if the spring is relatively tall, scraping or pushing it could stretch the non-woven fabric, causing it to deform and resulting in a bent weld. Consequently, the resulting bag spring would also be bent, reducing the product's manufacturing quality.
[0005] The content of the background section is merely technology known to the public and does not necessarily represent existing technology in the field. Utility Model Content
[0006] This application provides a packaging device for pocket springs, which aims to solve the problems of uneven force on the spring and fabric and relative sliding between the pocket spring and the pocket spring packaging bag during the current packaging process for pocket springs.
[0007] According to one aspect of this application, a packaging device for bagged springs is provided. The packaging device includes a conveying device and a first packaging mechanism. The conveying device includes a first conveying section and a second conveying section. The first conveying section includes a first transmission chain assembly and a plurality of first limiting rods. The first transmission chain assembly includes transmission chains disposed on the left and right sides of the first conveying section in the conveying direction; the plurality of first limiting rods are arranged laterally along the conveying direction, the number of first limiting rods is even, and a first gap and a second gap are formed sequentially between adjacent first limiting rods, wherein the spring is located at the first gap during the conveying process, and the second gap controls the distance between adjacent springs. The second conveying section includes a second transmission chain assembly and a plurality of second limiting rods. The second transmission chain assembly includes transmission chains disposed on the left and right sides of the second conveying section in the conveying direction; the plurality of second limiting rods are arranged laterally along the conveying direction, the number of second limiting rods is even, and a first gap and a second gap are formed sequentially between adjacent second limiting rods; a conveying channel for conveying springs is formed between the top of the second conveying section and the bottom of the first conveying section, and the first limiting rods and second limiting rods correspond one-to-one in the conveying channel, and the distance between the first limiting rods and the second limiting rods is less than the diameter of the spring. The first packaging mechanism is located at the exit of the conveyor channel. The first packaging mechanism includes a first welding knife and a second welding knife. Both the first welding knife and the second welding knife extend laterally and are arranged vertically correspondingly, moving closer to and further away from each other. The first packaging mechanism operates at the same frequency as the first and second transmission chain groups of the conveyor device, so that the first welding knife and the second welding knife of the first packaging mechanism move towards each other to perform packaging at the second interval.
[0008] According to some embodiments of this application, the spring enters from the inlet of the conveying channel and exits from the outlet of the conveying channel, and the distance between the first limiting rod and the corresponding second limiting rod gradually decreases from the inlet of the conveying channel to the outlet of the conveying channel.
[0009] According to some embodiments of this application, all or part of the two ends of the first limiting rod are respectively connected to the first transmission chain group, and all or part of the two ends of the second limiting rod are respectively connected to the second transmission chain group. The distance between the first gap and the second gap is adjustable to accommodate springs with different waist diameters.
[0010] According to some embodiments of this application, the transmission chains of the first transmission chain group and the second transmission chain group on the same side are driven by the same power source.
[0011] According to some embodiments of this application, when the first welding blade and the second welding blade are close to each other, the fabric is encapsulated into a bag spring by ultrasonic welding; when the first welding blade and the second welding blade are far apart from each other, the first limiting rod and the second limiting rod drive the spring and the fabric to be conveyed forward synchronously.
[0012] According to some embodiments of this application, the packaging device further includes a third conveying section. The third conveying section conveys the springs in a compressed state along the conveying direction, the end of the third conveying section extends into the packaging bag formed by the fabric, and the end of the third conveying section extends into the inlet of the conveying channel; adjacent springs located in the conveying channel are separated by a first limiting rod and a second limiting rod.
[0013] According to some embodiments of this application, the packaging device further includes a second packaging mechanism. The second packaging mechanism is disposed on one side of the third conveying section, located at the entrance of the conveying channel of the conveying device, and is used to longitudinally weld and package the fabric wrapping the third conveying section. The second packaging mechanism includes a third welding blade, a fourth welding blade, and a first clamping group; the third and fourth welding blades extend along the conveying direction, are arranged opposite each other in the horizontal direction, and move closer to and further away from each other; the first clamping group includes a first clamping module and a second clamping module; the first and second clamping modules are disposed upstream and downstream of the third and fourth welding blades along the conveying direction, and are used to jointly clamp the longitudinal opening of the fabric.
[0014] According to some embodiments of this application, the second packaging mechanism further includes a first driving part; one end of the first driving part is fixedly connected to the other end of the third welding knife to drive one end of the third welding knife to slide.
[0015] According to some embodiments of this application, the second packaging mechanism further includes a second driving unit. The second driving unit drives the opening and closing of the first clamping module and the second clamping module.
[0016] According to some embodiments of this application, the first clamping module and the second clamping module are roller structures, and the second encapsulation mechanism further includes a third driving part; the third driving part is connected to the roller and drives the fabric to move.
[0017] According to some embodiments of this application, the packaging device further includes a third conveying unit. A first conveying module and a second conveying module are arranged laterally opposite each other, and the first and second conveying modules jointly clamp a conveying spring along the conveying direction. The height of both the first and second conveying modules is less than the distance between a first limiting rod and a second limiting rod within the conveying channel; the first and second limiting rods are pushed away from the first and second conveying modules.
[0018] Beneficial effects
[0019] This application utilizes a first transmission chain group and a second transmission chain group for synchronous transmission, enabling the transport of bagged springs. Furthermore, this application employs two first limiting rods and two second limiting rods to clamp and transport the bagged springs and their packaging bags, ensuring uniform force distribution and preventing relative sliding between the bagged springs and their packaging bags during transport. This application also prevents deformation of the bagged springs or their packaging bags due to pulling. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a transmission device according to an embodiment of the present application;
[0022] Figure 2 This invention provides another schematic diagram of a transmission device according to an embodiment of the present application.
[0023] Figure 3 This diagram illustrates the transmission process of a transmission apparatus according to an embodiment of the present application.
[0024] Figure 4 This diagram shows a structural schematic of a packaging device according to an embodiment of the present application;
[0025] Figure 5 This diagram shows a structural schematic of a first packaging mechanism according to an embodiment of the present application;
[0026] Figure 6 A schematic diagram of the packaging of a first packaging mechanism according to an embodiment of this application is shown;
[0027] Figure 7 A schematic diagram showing a conveying device, a first packaging mechanism, and a third conveying unit according to an embodiment of this application is provided.
[0028] Figure 8 Another schematic diagram showing a conveying device, a first packaging mechanism, and a third conveying unit according to an embodiment of this application is shown;
[0029] Figure 9 Another schematic diagram of a conveying device, a first packaging mechanism, and a third conveying unit according to an embodiment of this application is shown.
[0030] Figure label:
[0031] Conveying device 100.
[0032] First transmission unit 110; Second transmission unit 120; Fourth transmission unit 130; Fifth transmission unit 140; Sixth transmission unit 150; Fourth drive unit 160.
[0033] First transmission chain group 111; first limiting rod 112.
[0034] Second transmission chain 121; second limiting rod 122.
[0035] Conveying direction γ; first spacing a; second spacing b.
[0036] Teleportation channel entrance 101; Teleportation channel 102; Teleportation channel exit 103.
[0037] Packaging device 200.
[0038] First packaging mechanism 210; second packaging mechanism 220; third conveying unit 230.
[0039] First support part 211; first welding knife 212; second welding knife 213; fifth drive part 214.
[0040] Third welding blade 221; fourth welding blade 222; first clamping assembly 223; first driving unit 224; second driving unit 225.
[0041] First clamping module 2231; second clamping module 2232.
[0042] First transmission module 231; second transmission module 232.
[0043] 3. Spring; 4. Fabric for pocket springs. Detailed Implementation
[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.
[0045] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of these specific details, or other methods, components, materials, devices, etc. In these cases, well-known structures, methods, devices, implementations, materials, or operations will not be shown or described in detail.
[0046] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.
[0047] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order.
[0048] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0049] According to one aspect of this application, a packaging device 200 for a pocket spring is provided. See also... Figure 4 The packaging device 200 includes a conveying device 100 and a first packaging mechanism 210.
[0050] See Figures 1-2 The conveying device 100 includes a first conveying section 110 and a second conveying section 120.
[0051] According to an example embodiment, a pocket spring is a product in which the spring is encapsulated in a packaging bag.
[0052] See Figure 1 and Figure 2 The first transmission unit 110 includes a first transmission chain group 111 and a plurality of first limiting rods 112.
[0053] According to the example embodiment, the conveying direction γ can be the direction in which the first conveying unit 110 and the second conveying unit 120 convey the spring 3 (i.e., as shown in the example embodiment). Figure 1 and Figure 2 The transmission direction γ is shown in the diagram.
[0054] See Figure 1 and Figure 2 The first transmission chain group 111 includes transmission chains disposed on the left and right sides of the first transmission section 110 in the transmission direction γ. Multiple transmission wheels can be disposed on the inner circumference of each transmission chain, and the transmission chain moves around the outer circumference of the transmission wheels. Furthermore, the two transmission chains move at the same frequency.
[0055] See Figure 1 and Figure 2Multiple first limit rods 112 are arranged laterally along the conveying direction γ, and the number of first limit rods 112 is even. The multiple first limit rods 112 are arranged at intervals.
[0056] See Figure 2 and Figure 3 A first spacing a and a second spacing b are formed sequentially between adjacent first limiting rods 112. The distance between two adjacent first limiting rods 112 can be either the first spacing a or the second spacing b. The first spacing a and the second spacing b are set alternately.
[0057] In this configuration, spring 3 is positioned at a first distance a during transport, while a second distance b controls the distance between adjacent springs 3. The first distance a can be customized according to user requirements. For example, the first distance a can be slightly smaller than the waist diameter of spring 3, so that the two first limiting rods 112 can clamp spring 3 during transport. The second distance b can also be customized according to user requirements. For example, the second distance b can be approximately equal to the distance between two springs 3.
[0058] According to the example embodiment, a gap is formed between the top of the second conveying section 120 and the bottom of the first conveying section 110, so that the spring 3 passes through the gap between the top of the second conveying section 120 and the bottom of the first conveying section 110, thereby conveying the spring 3.
[0059] See Figure 1 and Figure 2 The second transmission unit 120 includes a second transmission chain assembly 121 and multiple second limiting rods 122. The second transmission chain assembly 121 includes transmission chains disposed on the left and right sides of the transmission direction γ of the second transmission unit 120. Multiple transmission wheels can be disposed on the inner circumference of each transmission chain, and the transmission chain moves around the outer circumference of the transmission wheels. Furthermore, the two transmission chains move at the same frequency.
[0060] The two transmission chains of the first transmission chain group 111 and the two transmission chains of the second transmission chain group 121 move in the same frequency.
[0061] See Figure 1 and Figure 2 Multiple second limiting rods 122 are arranged laterally along the conveying direction γ. The number of second limiting rods 122 is even. The multiple second limiting rods 122 are arranged at intervals. Each second limiting rod 122 corresponds to a first limiting rod 112. The second limiting rod 122 is vertically aligned with the corresponding first limiting rod 112.
[0062] According to the example embodiment, a first gap a and a second gap b are sequentially formed between adjacent second limiting rods 122. During the transmission process, the two second limiting rods 122 can clamp the spring 3.
[0063] The first gap a formed between the two second limiting rods 122 is aligned with the first gap a formed between the two first limiting rods 112 in the vertical direction.
[0064] The second gap b formed between the two second limiting rods 122 is aligned with the second gap b formed between the two first limiting rods 112 in the vertical direction.
[0065] This configuration allows the spring 3 to be clamped by both first limiting rods 112 and two second limiting rods 122 during the conveying process. Furthermore, by clamping the spring 3 together with the two first limiting rods 112 and two second limiting rods 122, the spring 3 and the fabric 4 of the pocket spring can be kept in a relatively fixed position, thus preventing the spring 3 from sliding relative to the fabric 4 of the pocket spring.
[0066] According to the example embodiment, a conveying channel 102 for conveying the spring 3 is formed between the first conveying section 110 and the second conveying section 120. Within the conveying channel 102, a first limiting rod 112 and a second limiting rod 122 correspond one-to-one, and the distance between the first limiting rod 112 and the second limiting rod 122 is less than the diameter of the spring.
[0067] The first transmission chain group 111 and the second transmission chain group 121 move in the same frequency along the transmission direction γ. The first transmission chain group 111 drives the first limiting rod 112 to move, and the second transmission chain group 121 drives the second limiting rod 122 to move.
[0068] According to an example embodiment, a first packaging mechanism 210 is disposed at the outlet 103 of the conveying channel and is arranged in a direction perpendicular to the conveying direction γ. The first packaging mechanism 210 includes a first welding blade 212 and a second welding blade 213. Both the first welding blade 212 and the second welding blade 213 extend laterally, and the first welding blade 212 and the second welding blade 213 can move closer to each other and further away from each other.
[0069] The first packaging mechanism 210 operates at the same frequency as the first transmission chain group 111 and the second transmission chain group 121 of the conveying device 100, so that the first welding knife 212 and the second welding knife 213 of the first packaging mechanism 210 move toward each other to perform packaging at the second spacing b.
[0070] See Figure 4 and Figure 5The first packaging mechanism 210 may further include a first support portion 211. The first support portion 211 includes support rods disposed on the left and right sides of the conveying device 100 disposed along the conveying direction γ. The first support portion 211 may be disposed at the outlet 103 of the conveying channel.
[0071] See Figure 4 and Figure 5 The first welding knife 212 is supported by the first support portion 211, and the first welding knife 212 is slidably connected to the first support portion 211 along a support rod of the first support portion 211. One end of the first welding knife 212 is slidably connected to one support rod of the first support portion 211, and the other end of the first welding knife 212 is slidably connected to another support rod of the first support portion 211. The first welding knife 212 can slide along the support rod.
[0072] See Figure 4 and Figure 5 The second welding blade 213 is supported by the first support portion 211. The second welding blade 213 is slidably connected to the first support portion 211 along a support rod of the first support portion 211, and the second welding blade 213 is disposed opposite to the first welding blade 212. The second welding blade 213 can be disposed below the first welding blade 212. One end of the second welding blade 213 is slidably connected to one support rod of the first support portion 211, and the other end of the second welding blade 213 is slidably connected to another support rod of the first support portion 211. The second welding blade 213 can slide along the support rod.
[0073] According to the example embodiment, when the first welding blade 212 slides downwards, the second welding blade 213 slides upwards, and the first welding blade 212 and the second welding blade 213 move closer to each other. When the first welding blade 212 slides upwards, the second welding blade 213 slides downwards, and the first welding blade 212 and the second welding blade 213 move away from each other.
[0074] The operating frequency of the first welding knife 212 and the second welding knife 213 can be the same as the frequency of the synchronous transmission motion of the first transmission chain group 111 and the second transmission chain group 121.
[0075] See Figure 6 The spring 3 to be packaged, held by the first limiting rod 112 and the second limiting rod 122, is conveyed to the conveying channel outlet 103. The first welding knife 212 and the second welding knife 213 move toward each other to package the fabric 4 of the bagged spring to be packaged in a direction perpendicular to the conveying direction γ.
[0076] For example, the first packaging mechanism 210 can be an ultrasonic welding mechanism. The first welding blade 212 can be a welding blade, and the second welding blade 213 can be an ultrasonic mold head. The ultrasonic welding mechanism has a fast welding speed and high welding quality.
[0077] Through the above embodiments, this application achieves synchronous transmission of the spring 3 via the first transmission chain group 111 and the second transmission chain group 121. Furthermore, this application uses two first limiting rods 112 and two second limiting rods 122 to clamp the spring 3 and the fabric 4 for transmission, ensuring uniform force on the spring 3 and the fabric 4, preventing relative sliding between them during transmission, and avoiding deformation of the spring 3 or the fabric 4 due to pulling.
[0078] This application uses a conveying device 100 to convey spring 3 and fabric 4 containing bagged springs. During the conveying process, spring 3 and fabric 4 do not deform or slide relative to each other. This application uses a first packaging mechanism 210 to package the spring 3 and fabric 4 to be packaged at the outlet 103 of the conveying channel.
[0079] Since the spring 3 and the fabric 4 of the bag spring do not deform or slide relative to each other during the transmission process, the first packaging mechanism 210 can avoid bending deformation of the weld seam of the fabric 4, thereby preventing the bag spring from deforming after packaging.
[0080] See Figure 4 and Figure 5 The first packaging mechanism 210 also includes a fifth driving unit 214. The fifth driving unit 214 is connected to the first welding knife 212 and the second welding knife 213 to drive the first welding knife 212 and the second welding knife 213 to slide.
[0081] For example, the fifth drive unit 214 may include a drive motor and a reducer. The drive motor can be connected to the first welding knife 212 via a connecting rod, and the drive motor can be connected to the second welding knife 213 via another connecting rod. Driven by the rotation of the drive motor, the first welding knife 212 and the second drive module are driven to slide through the reducer and connecting rod.
[0082] Through the above embodiments, the fifth drive module (drive motor) can rotate at the same frequency as the fourth drive unit 160 (drive motor), that is, the fifth drive module can rotate at a preset frequency so that the operating frequency of the first welding knife 212 and the second welding knife 213 can be the same as the frequency of the synchronous transmission motion of the first transmission chain group 111 and the second transmission chain group 121.
[0083] Optionally, the spring 3 enters from the conveyor channel inlet 101 and exits from the conveyor channel outlet 103. The distance between the first limiting rod 112 and the corresponding second limiting rod 122 gradually decreases from the conveyor channel inlet 101 to the conveyor channel outlet 103. During the conveying process, the two first limiting rods 112 and the two second limiting rods 122 allow the fabric 4 to gradually come closer to the spring 3.
[0084] See Figure 2 and Figure 3 The transmission process of spring 3 is as follows:
[0085] With the spring 3 and the fabric 4 of the pocket spring at the entrance 101 of the conveying channel, a first limiting rod 112 and a second limiting rod 122 push the spring 3 to the position of the first gap a in the conveying channel 102.
[0086] As the spring 3 is gradually conveyed from the inlet 101 to the outlet 103 of the conveyor channel, the spring 3 and the fabric 4 of the pocket spring are clamped together by two first limiting rods 112 and two second limiting rods 122. Furthermore, under the action of the two first limiting rods 112 and two second limiting rods 122, the fabric 4 of the pocket spring gradually comes closer to the spring 3.
[0087] With the spring 3 fully conveyed to the conveyor channel outlet 103, the fabric 4 is completely pressed against the spring 3.
[0088] Optionally, both ends of all or part of the first limiting rod 112 are connected to the first transmission chain group 111. Both ends of all or part of the second limiting rod 122 are connected to the second transmission chain group 121. The distance between the first gap a and the second gap b is adjustable to accommodate springs 3 with different waist diameters.
[0089] For example, multiple spaced chain plates can be installed on each drive chain. The first limiting rod 112 can be connected to the drive chain of the first drive chain group 111 via a chain plate. The second limiting rod 122 can be connected to the drive chain of the second drive chain group 121 via a chain plate. The chain plates on the drive chain can be removed and installed.
[0090] Optionally, the transmission chains of the first transmission chain group 111 and the second transmission chain group 121 on the same side are driven by the same power source.
[0091] According to the example embodiment, see Figure 1 The transmission device 100 also includes a fourth transmission unit 130, a fifth transmission unit 140, a sixth transmission unit 150, and a fourth drive unit 160.
[0092] According to the example embodiment, the first end of the fourth conveying unit 130 is rotatably connected to one end of the first conveying unit 110, and the second end of the fourth conveying unit 130 is rotatably connected to one end of the second conveying unit 120. The fourth conveying unit 130 is disposed on the same side of the first conveying unit 110 and the second conveying unit 120.
[0093] The fifth transmission unit 140 is disposed opposite to the fourth transmission unit 130 on the opposite side of the first transmission unit 110, and the fifth transmission unit 140 is disposed on the same side as the first transmission unit 110 and the second transmission unit 120. The first end of the fifth transmission unit 140 is rotatably connected to one end of the first transmission unit 110 on the other side, and the second end of the fifth transmission unit 140 is rotatably connected to one end of the second transmission unit 120 on the other side.
[0094] One end of the sixth transmission unit 150 is rotatably connected to the third end of the fourth transmission unit 130, and the other end of the sixth transmission unit 150 is rotatably connected to the other end of the fifth transmission unit 140.
[0095] The fourth drive unit 160 is rotatably connected to the other end of the sixth transmission unit 150.
[0096] For example, the fourth drive unit 160 can be a drive motor. The drive motor can drive at a preset frequency.
[0097] The fourth conveying unit 130 can be a conveyor belt and a conveyor wheel structure. The fourth conveying unit 130 includes a drive belt and four drive wheels. The four drive wheels are arranged from top to bottom as the first drive wheel to the fourth drive wheel. The first drive wheel is rotatably fixed to one end of one side of the first conveying unit 110, and the second to fourth drive wheels are rotatably fixed to one side of the second conveying unit 120. The drive belt is arranged around the cylindrical side of the four drive wheels.
[0098] The fifth conveyor section 140 can be a conveyor belt and a conveyor wheel structure. The fifth conveyor section 140 is disposed opposite to the fourth conveyor section 130 on the opposite side of the first conveyor section 110. The fifth conveyor section 140 has the same structure as the fourth transmission section. The fifth conveyor section 140 includes a transmission belt and four transmission wheels. The four transmission wheels are arranged from top to bottom as the fifth transmission wheel to the eighth transmission wheel. Each of the fifth transmission wheels is rotatably fixed to one end of the opposite side of the first conveyor section 110, and the sixth to eighth transmission wheels are rotatably fixed to the opposite side of the second conveyor section 120. The transmission belt is arranged around the cylindrical side of the four transmission wheels.
[0099] The sixth conveying unit 150 can be a conveyor belt and a conveyor wheel structure. The sixth conveying unit 150 includes a drive belt and two drive wheels. The two drive wheels are, from left to right, the ninth drive wheel and the tenth drive wheel. The ninth drive wheel is rotatably connected to the fourth drive wheel, and the tenth drive wheel is rotatably connected to the eighth drive wheel.
[0100] The fourth drive unit 160 (drive motor) can be connected to the tenth drive wheel.
[0101] The fourth drive unit 160 (drive motor) can rotate at a preset frequency, thereby driving the tenth drive wheel to rotate. The tenth drive wheel drives the ninth drive wheel to rotate via a conveyor belt. The ninth drive wheel drives the fourth drive wheel to rotate. The fourth drive wheel drives the first drive wheel, the second drive wheel, and the third drive wheel to rotate via a conveyor belt. The first drive wheel drives the left drive chain of the first drive chain group 111 to perform a transmission motion. The second drive wheel drives the left drive chain of the second drive chain group 121 to perform a transmission motion.
[0102] The tenth drive wheel also drives the eighth drive wheel to rotate. The eighth drive wheel drives the fifth, sixth, and seventh drive wheels to rotate. The fifth drive wheel drives the right drive chain of the first drive chain group 111 to perform transmission motion. The sixth drive wheel drives the right drive chain of the second drive chain group 121 to perform transmission motion.
[0103] The first transmission chain group 111 and the second transmission chain group 121 are driven by the same driving unit, which can make the positions of the multiple second limit rods 122 and the multiple first limit rods 112 relatively fixed. That is, during the transmission process of the spring 3, the positions of the second limit rods 122 and the corresponding first limit rods 112 are relatively fixed.
[0104] This application enables the sixth transmission unit 150 to perform transmission motion by driving the fourth drive unit 160, so that the sixth transmission unit 150 can drive the fourth transmission unit 130 and the fifth transmission unit 140 to perform synchronous transmission motion, thereby enabling the first transmission chain group 111 and the second transmission chain group 121 to perform synchronous transmission motion.
[0105] Optionally, when the first welding blade 212 and the second welding blade 213 are close to each other, the fabric 4 is encapsulated into a pocket spring by ultrasonic welding. For example, when the first welding blade 212 and the second welding blade 213 are close to each other, the spring 3 is encapsulated in the fabric 4 by ultrasonic welding to form a pocket spring.
[0106] When the first welding blade 212 and the second welding blade 213 are far apart, the first limiting rod 112 and the second limiting rod 122 drive the spring 3 and the cloth 4 to be conveyed forward synchronously.
[0107] Optionally, see Figure 4 , Figure 7 , Figure 8 and Figure 9 The packaging device 200 also includes a third conveying section 230. The third conveying section 230 conveys the spring 3 in a compressed state along the conveying direction γ. The end of the third conveying section 230 extends into the packaging bag formed by the fabric 4 and extends into the conveying channel inlet 101.
[0108] Adjacent springs 3 in the conveying channel 102 are separated by a first limiting rod 112 and a second limiting rod 122. During the conveying process, the springs 3 are located in the first gap a, and the first gap a and the second gap b are set at intervals.
[0109] Optionally, see Figure 4 , Figure 8 and Figure 9 The packaging device 200 also includes a second packaging mechanism 220. The second packaging mechanism 220 is disposed on one side of the third conveying section 230 and is located at the conveying channel entrance 101 of the conveying device 100. The second packaging mechanism 220 is used to weld and package the fabric 4 wrapped around the third conveying section 230 longitudinally.
[0110] For example, the second packaging mechanism 220 is located outside the conveying channel entrance 101 of the conveying device 100, and the second packaging mechanism 220 can package the packaging bag of the packaging spring along the conveying direction γ.
[0111] According to an example embodiment, the second packaging mechanism 220 includes a third welding blade 221, a fourth welding blade 222, and a first clamping assembly 223. The second packaging mechanism 220 can be mounted on the outside of the conveying channel entrance 101 of the conveying device 100 via a bracket.
[0112] The third welding knife 221 and the fourth welding knife 222 extend in the conveying direction γ. The third welding knife 221 and the fourth welding knife 222 are arranged opposite each other in the horizontal direction. The third welding knife 221 and the fourth welding knife 222 can move closer to each other and further away from each other.
[0113] The third welding blade 221 is slidably disposed in the conveying direction γ along a direction perpendicular to the conveying direction γ. The fourth welding blade 222 is disposed in the conveying direction γ, and is disposed opposite to the third welding blade 221. The third welding blade 221 can slide at a preset frequency in a direction perpendicular to the conveying direction γ.
[0114] See Figure 4 The first clamping group 223 includes a first clamping module 2231 and a second clamping module 2232. The first clamping module 2231 and the second clamping module 2232 are disposed upstream and downstream of the third welding knife 221 and the fourth welding knife 222 along the conveying direction γ, and the first clamping module 2231 and the second clamping module 2232 are used to jointly clamp the longitudinal opening of the fabric 4.
[0115] The first clamping module 2231 is disposed on the side of the third welding knife 221. The second clamping module 2232 is disposed on the side of the fourth welding knife 222. The second clamping module 2232 and the first clamping module 2231 together clamp the fabric 4 of the pocket spring.
[0116] According to the example embodiment, the third welding blade 221 moves toward the fourth welding blade 222 to encapsulate the fabric 4 of the pocket spring along the conveying direction γ. The third welding blade 221 slides toward the fourth welding blade 222, and when the third welding blade 221 contacts the fabric 4 of the pocket spring, the third welding blade 221 and the fourth welding blade 222 perform an encapsulation action along the conveying direction γ.
[0117] For example, the second packaging mechanism 220 can be an ultrasonic welding mechanism. The third welding blade 221 can be a welding blade, and the fourth welding blade 222 can be an ultrasonic mold head.
[0118] The fourth welding blade 222 can also be slidably disposed in the conveying direction γ along a direction perpendicular to the conveying direction γ. The third welding blade 221 and the fourth welding blade 222 slide towards each other. When both the third welding blade 221 and the fourth welding blade 222 are in contact with the fabric 4, the third welding blade 221 and the fourth welding blade 222 perform a sealing action along the conveying direction γ.
[0119] Optionally, see Figure 4 The second packaging mechanism 220 also includes a first driving unit 224.
[0120] According to an example embodiment, one end of the first driving part 224 is fixedly connected to the other end of the third welding knife 221 so as to drive one end of the third welding knife 221 to move slidably.
[0121] For example, the first drive unit 224 can be a cylinder. The cylinder is connected to the third welding blade 221 via a piston rod. By controlling the connection of the inlet gas line or the outlet gas line to the first drive unit 224 (cylinder), the sliding movement of the first drive unit 224 (cylinder) can be controlled. When the first drive unit 224 (cylinder) slides, it drives the third welding blade 221 to slide, thereby controlling the packaging operation state of the second packaging mechanism 220.
[0122] Optionally, see Figure 4 The second packaging mechanism 220 also includes a second driving unit 225. The second driving unit 225 drives the opening and closing of the first clamping module 2231 and the second clamping module 2232.
[0123] According to the example embodiment, one end of the second driving part 225 is fixedly connected to the first clamping module 2231 to drive the first clamping module 2231 to move slidably.
[0124] For example, the second drive unit 225 can be a cylinder. The cylinder is connected to the first clamping module 2231 via a piston rod. By controlling the connection of the inlet gas line or the outlet gas line to the second drive unit 225 (cylinder), the sliding movement of the second drive unit 225 (cylinder) can be controlled. When the second drive unit 225 (cylinder) slides, it drives the first clamping module 2231 to slide, thereby controlling the state of the first clamping assembly 223 clamping the fabric 4 of the pocket spring.
[0125] Optionally, see Figure 4 The first clamping module 2231 and the second clamping module 2232 are roller structures, and the second packaging mechanism 220 also includes a third driving unit.
[0126] The first clamping module 2231 includes two rotatable rollers, which are horizontally arranged along the conveying direction. The second clamping module 2232 includes two rotatable rollers, which are horizontally arranged along the conveying direction. The four rollers together clamp the fabric 4. The third drive unit is connected to the rollers to drive the rollers to rotate, thereby assisting in the conveying of the fabric 4.
[0127] Optionally, see Figure 4 and Figure 7 The third transmission unit 230 includes a first transmission module 231 and a second transmission module 232.
[0128] The first conveying module 231 and the second conveying module 232 are arranged laterally opposite each other. The first conveying module 231 and the second conveying module 232 together clamp the conveying spring 3 along the conveying direction γ. The height of the first conveying module 231 and the height of the second conveying module 232 are both less than the distance between the first limiting rod 112 and the second limiting rod 122 in the conveying channel 102.
[0129] The first limiting rod 112 and the second limiting rod 122 push the end spring 3, the first transmission module 231 and the second transmission module 232.
[0130] For example, one end of the first transmission module 231 is disposed in the gap between the first transmission section 110 and the second transmission section 120. The first transmission module 231 is horizontally disposed along the transmission direction γ.
[0131] The second transmission module 232 is horizontally opposite to the first transmission module 231. One end of the second transmission module 232 is disposed in the gap between the first transmission section 110 and the second transmission section 120, and a gap is formed between the second transmission module 232 and the first transmission module 231.
[0132] The first conveying module 231 and the second conveying module 232 pass through the fabric 4 of the bagged spring and together convey the spring 3 along the conveying direction γ.
[0133] Both the first transmission module 231 and the second transmission module 232 have transmission chains inside. The spring 3 can be transmitted in a compressed state to the entrance of the third transmission section 230, and then transmitted to the entrance 101 of the transmission channel of the transmission device 100 (i.e., the end of the third transmission section 230) via two transmission chains with the same frequency. The spring 3 is pushed into the transmission channel 102 of the transmission device 100 by the first limiting rod 112 and the second limiting rod 122. After entering the transmission channel 102 of the transmission device 100, the spring 3 changes from a compressed state to an inelastic deformation state.
[0134] See Figure 7 The first transmission chain group 111 and the second transmission chain group 121 can be symmetrical structures. See also Figure 8 and Figure 9 The first transmission chain group 111 and the second transmission chain group 121 can also be an asymmetrical structure.
[0135] Through the above embodiments, this application, by providing a third conveying section 230, can convey the compressed spring 3 to the conveying device 100. This application, by using the first limiting rod 112 and the second limiting rod 122 to push the end spring 3, can prevent the spring 3 from getting stuck during its disengagement from the third conveying section 230.
[0136] Finally, it should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions of the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An encapsulation device for pocketed springs, characterized in that, The packaging device includes: The conveying device includes: The first transmission unit includes: The first transmission chain group includes transmission chains disposed on the left and right sides of the first transmission unit in the transmission direction. Multiple first limiting rods are arranged laterally along the conveying direction. The number of first limiting rods is even. A first gap and a second gap are formed between adjacent first limiting rods in sequence. During the conveying process, the spring is located at the first gap, and the second gap controls the distance between adjacent springs. The second transmission unit includes: The second transmission chain group includes transmission chains disposed on the left and right sides of the transmission direction of the second transmission unit; Multiple second limiting rods are arranged laterally along the conveying direction. The number of second limiting rods is even. Adjacent second limiting rods are arranged sequentially to form the first spacing and the second spacing. A conveying channel for conveying springs is formed between the top of the second conveying part and the bottom of the first conveying part. The first limiting rod and the second limiting rod correspond one-to-one in the conveying channel, and the distance between the first limiting rod and the second limiting rod is less than the diameter of the spring. A first packaging mechanism is provided at the outlet of the conveying channel. The first packaging mechanism includes a first welding knife and a second welding knife. Both the first welding knife and the second welding knife extend laterally. The first welding knife and the second welding knife are arranged vertically and correspondingly, and are close to and far from each other. The first packaging mechanism operates at the same frequency as the first transmission chain group and the second transmission chain group of the conveying device, so that the first welding knife and the second welding knife of the first packaging mechanism move towards each other to perform packaging at the second spacing.
2. The packaging apparatus of claim 1, wherein The spring enters from the inlet of the conveying channel and exits from the outlet of the conveying channel. The distance between the first limiting rod and the corresponding second limiting rod gradually decreases from the inlet of the conveying channel to the outlet of the conveying channel.
3. The packaging apparatus of claim 1, wherein All or part of the first limiting rods are connected at both ends to the first transmission chain group, and all or part of the second limiting rods are connected at both ends to the second transmission chain group. The distance between the first spacing and the second spacing is adjustable to accommodate springs with different waist diameters.
4. The packaging apparatus of claim 1, wherein The transmission chains of the first and second transmission chains on the same side are driven by the same power source.
5. The packaging apparatus of claim 1, wherein, When the first welding blade and the second welding blade are close to each other, the fabric is encapsulated into a bag spring by ultrasonic welding. When the first welding knife and the second welding knife are far apart from each other, the first limiting rod and the second limiting rod drive the spring and the cloth to be conveyed forward synchronously.
6. The packaging apparatus of claim 1, wherein, The packaging device further includes: The third conveying unit conveys the spring in a compressed state along the conveying direction. The end of the third conveying unit extends into the packaging bag formed by the fabric and extends into the inlet of the conveying channel. Adjacent springs located within the conveying channel are separated by the first limiting rod and the second limiting rod.
7. The packaging apparatus of claim 6, wherein, The packaging device further includes: The second packaging mechanism is disposed on one side of the third conveying part. The second packaging mechanism is located at the entrance of the conveying channel of the conveying device and is used to weld and seal the cloth wrapping the third conveying part longitudinally. The second packaging mechanism includes a third welding knife, a fourth welding knife and a first clamping group. The third and fourth welding blades extend along the conveying direction, are arranged opposite each other in the horizontal direction, and move closer to and further away from each other; The first clamping assembly includes a first clamping module and a second clamping module; The first clamping module and the second clamping module are disposed upstream and downstream of the third welding knife and the fourth welding knife along the conveying direction, and the first clamping module and the second clamping module are used to jointly clamp the longitudinal opening of the fabric.
8. The packaging apparatus of claim 7, wherein, The second packaging mechanism also includes: The second drive unit drives the opening and closing of the first clamping module and the second clamping module.
9. The packaging apparatus of claim 7, wherein, The first clamping module and the second clamping module are roller structures, and the second packaging mechanism further includes: The third drive unit is connected to the roller to drive the roller to rotate and move the fabric.
10. The packaging apparatus of claim 6, wherein, The third transmission unit includes a first transmission module and a second transmission module; The first conveying module and the second conveying module are arranged laterally opposite each other. The first conveying module and the second conveying module jointly clamp the conveying spring along the conveying direction. The height of the first conveying module and the height of the second conveying module are both less than the distance between the first limiting rod and the second limiting rod in the conveying channel. The first limiting rod and the second limiting rod push the end spring to disengage from the first transmission module and the second transmission module.