Dispensing and separating mechanism

Abstract

The utility model relates to packing equipment technical field discloses a kind of point gum separating mechanisms, including drive module, drive module drives point gum module and rebound module movement, point gum module includes point gum head, rebound module includes push column, threaded sleeve and return spring, push column is movably sleeved in threaded sleeve, push column bottom is equipped with push protrusion, return spring is sleeved in push column, return spring lower end abuts push protrusion, upper end abuts threaded sleeve, return spring is compressed when point gum, return spring pushes push column and separates when and resists workpiece, workpiece is separated from point gum head. By adjusting the form of rebound module and the position relative to point gum head, prevent the pull tail glue silk adhered on separating piece after point gum, generated under viscous state;By setting the rebound module of adjustable stroke height, adjust the separation effect of point gum head and the point gum material when reversely pushing bundling belt after point gum is completed.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, specifically a dispensing separation mechanism. Background Technology

[0002] The dispensing mechanism, also known as the wrapping mechanism, in strapping equipment is a core component for automated strapping. It primarily applies adhesive to the strapping wire harness itself or the products being strapped. The dispensing mechanism dispenses adhesive from the dispensing head onto the material to be bonded. However, some materials, especially flexible strapping tape, are easily pulled away by the adhesive force when separating from the dispensing head after dispensing. This can affect the accuracy and effectiveness of subsequent alignment and bonding steps. Existing technology, such as patent CN223145143U, addresses this by incorporating an elastic separation mechanism on the outer ring of the dispensing nozzle. This mechanism allows for elastic repositioning and limiting of the material after dispensing, preventing it from being pulled away from its position by the dispensing head while still sticky. However, in this technical solution, when the dispensing head separates from the object being dispensed, there is a certain amount of glue tailing, causing the resulting glue strands to easily adhere to the separator around the dispensing nozzle, which can affect subsequent dispensing operations. Furthermore, the elastic mechanism of the separator cannot adjust the separation effect according to the dispensing stroke height.

[0003] Therefore, a separation mechanism is needed that prevents the tail rubber from getting stuck and allows the stroke height of the recovery device to be adjusted as needed. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a dispensing separation mechanism, including a drive module that drives a dispensing module and a spring-loaded module to move. The dispensing module includes a dispensing head, and the spring-loaded module includes a push column, a threaded sleeve, and a return spring. The push column is movably fitted inside the threaded sleeve, and a push protrusion is provided at the bottom of the push column. The return spring is fitted onto the push column, with its lower end abutting against the push protrusion and its upper end abutting against the threaded sleeve. During dispensing, the return spring is compressed; during separation, the return spring pushes the push column to press against the workpiece, thus separating the workpiece from the dispensing head.

[0005] Preferably, the drive module includes a pusher, a mounting block, and a fixing plate, and the springback module is mounted on the fixing plate.

[0006] Preferably, the fixing plate is provided with a glue head hole, and the glue dispensing head is fixed in the glue head hole of the fixing plate.

[0007] Preferably, the dispensing head is fixed to the dispensing head hole by a threaded connection, and also includes a fixing nut, which is threadedly connected to the dispensing head to achieve locking and limiting.

[0008] Preferably, the fixing plate is provided with mounting holes, and the spring-loaded module is fixed in the mounting holes.

[0009] Preferably, the threaded sleeve is confined within the mounting hole by two positioning nuts, and adjusting the position of the positioning nuts changes the pre-compression stroke of the return spring.

[0010] Preferably, the top of the push column is provided with a limiting structure, which restricts the range of movement of the push column within the threaded sleeve.

[0011] Preferably, the limiting structure includes a limiting block, which is fixedly disposed on the top of the pushing column.

[0012] Preferably, the fixing plate is provided with a glue head hole and a mounting hole, and the glue head hole is located on the front side of the mounting hole.

[0013] Preferably, the fixing plate is provided with a plurality of mounting holes, and each set of mounting holes is used to install an independent spring-loaded module.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by adjusting the shape of the rebound module and the position of the relative dispensing head, the sticky glue strands generated by the material in a viscous state after dispensing are prevented from adhering to the separating component; by setting a rebound module with an adjustable stroke height, the separation effect between the dispensing head and the dispensed material is adjusted when the strapping is pushed back after dispensing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a dispensing separation mechanism according to this utility model.

[0017] Figure 2 This is a side view of the dispensing separation mechanism of this utility model.

[0018] Figure 3 This is a schematic diagram of the dispensing state of a dispensing separation mechanism according to this utility model.

[0019] Figure 4 This is a schematic diagram of the compression state of the springback module of a dispensing separation mechanism according to this utility model.

[0020] Figure 5 This is an exploded view of the springback component of a dispensing separation mechanism according to this utility model.

[0021] Figure 6 This is a schematic diagram of the drive module of a dispensing separation mechanism according to this utility model.

[0022] In the diagram: 1-Pusher, 11-Mounting block, 2-Fixing plate, 21-Mounting hole, 22-Glue head hole, 3-Glue tube, 31-Glue dispensing head, 32-Fixing nut, 4-Push column, 41-Threaded sleeve, 42-Return spring, 43-Positioning nut, 44-Push protrusion, 45-Limiting block, 5-Bundling strap, 51-Bundled object. Detailed Implementation

[0023] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] An embodiment of this utility model provides a dispensing separation mechanism, such as... Figures 1 to 6 As shown, the system includes a drive module, a dispensing module, and a springback module. The drive module includes a pusher 1, a mounting block 11, and a fixing plate 2. The dispensing module and the springback module are respectively fixed to the fixing plate 2 and driven by the pusher 1. The drive module moves the dispensing module and the springback module closer to or away from the workpiece to be bonded. One end of the springback module is fixed to the drive module, and the other end is elastically movable to one side of the dispensing module. When the dispensing operation is completed, the dispensing module resets under the drive of the drive module, while the springback module elastically presses against the workpiece to be bonded, thus separating the dispensing module from the workpiece.

[0025] The actuator 1 is a common pneumatic cylinder, and the external part of the pneumatic cylinder is connected to the air source. The structure and usage of the pneumatic cylinder are existing technologies well known to those skilled in the art, and will not be described in detail here. Furthermore, the actuator 1 is electrically connected to the controller.

[0026] The pusher 1 is equipped with a push rod, and a mounting block 11 is fixedly mounted at the bottom of the push rod. The fixing plate 2 is fixedly mounted below the mounting block 11. The front of the fixing plate 2 is provided with a mounting hole 21. The spring-loaded module is fitted into the mounting hole 21.

[0027] The fixing plate 2 is also provided with a glue head hole 22, which is located in front of the mounting hole 21. The incoming direction of the workpiece to be glued is forward. The glue head hole 22 is provided with threads, and the glue dispensing module is threadedly connected to the glue head hole 22.

[0028] The rebound module includes a push post 4, a threaded sleeve 41, and a return spring 42. The push post 4 is movably sleeved within the threaded sleeve 41. A push protrusion 44 is provided at the bottom of the push post 4, and the push protrusion 44 is integrally formed with the push post 4. The threaded sleeve 41 is sleeved and installed within the mounting hole 21. Positioning nuts 43 are respectively provided above and below the mounting hole 21, and the two positioning nuts 43 provide upper and lower limits for the threaded sleeve 41.

[0029] The return spring 42 is sleeved on the push post 4, and the return spring 42 has the ability to compress and return along the axial direction of the push post 4. One end of the return spring 42 abuts against the lower part of the push post 4, preferably, the lower end of the return spring 42 abuts against the top surface of the push protrusion 44. The other end of the return spring 42 abuts against the bottom of the positioning nut 43. In this state, the distance between the positioning nut 43, which is located below the mounting hole 21, and the push protrusion 44 serves to adjust and limit the return stroke of the positioning spring. This adjusts the separation strength generated by elastic deformation and elastic recovery.

[0030] The top of the push column 4 is also provided with a limiting structure, which restricts the movement range of the push column 4 and prevents the push column 4 from disengaging from the threaded sleeve 41. Preferably, the limiting structure is a fixed limiting structure, which is a limiting block 45. The limiting block 45 is welded to the top of the push column 4 after installation, and the cross-sectional diameter of the limiting block 45 is larger than the inner diameter of the threaded sleeve 41, so that the limiting block 45 locks the push column 4 in the movable sleeve state. Alternatively, the limiting structure is a detachable combination snap-fit ​​structure, which includes a pin hole on the upper part of the push column 4 and a pin or cotter pin disposed in the pin hole and protruding from the outer surface of the push column 4. The length of the protruding part of the pin or cotter pin is larger than the inner diameter of the threaded sleeve 41. The sleeve limiting structure of the rod is a technical means well known to those skilled in the art and can be selected according to the requirements, and will not be described in detail here.

[0031] The dispensing module includes a dispensing tube 3 and a dispensing head 31. One end of the dispensing tube 3 is connected to a dispensing mechanism, which supplies adhesive. The specific structure and usage of the dispensing tube 3 and the dispensing mechanism are well-known to those skilled in the art and will not be described in detail here. The output end of the dispensing tube 3 is connected to the dispensing head 31. The dispensing head 31 has threads on its exterior corresponding to the glue head hole 22, and the dispensing head 31 is threadedly connected to the fixing plate 2. Furthermore, the dispensing head 31 is threadedly connected to a fixing nut 32, which abuts against the fixing plate 2, further locking and limiting the dispensing head 31.

[0032] Depending on the width of the workpiece to be glued, the separation effect, and other requirements, two or more sets of mounting holes 21 can be provided on the fixing plate 2, and the springback module can be installed in the mounting holes 21.

[0033] Usage: Taking the strapping strap 5 as an example, when the strapping equipment is running, by adjusting the fixing nut 32, after the strapping strap 5 is wrapped around the bundled object 51, the position where the strapping strap 5 needs to be glued corresponds to the area below the glue dispensing head 31. The pusher 1 drives the push rod to move, causing the mounting block 11 and the fixing plate 2 to move. The glue dispensing head 31 and the push column 4 on the fixing plate 2 move downward synchronously. At this time, the glue dispensing head and the push column 4 move closer to the strapping strap 5. The return spring 42 is compressed and deformed along the axial direction. After reaching the set depth position, the glue dispensing head 31 applies glue to the strapping strap 5.

[0034] After the dispensing action is completed, the pusher 1 drives the mounting block 11 and the fixing plate 2 to move upwards, away from the strapping 5. At this time, due to the adhesive's own stickiness, the dispensing head 31 and the strapping 5 cannot separate instantly, causing the strapping 5 to tend to deviate upwards from its original position under the action of the dispensing head 31. The bottom of the push column 4 abuts against the strapping 5, and simultaneously, as the fixing plate 2 rises, the return spring 42 gradually returns to its shape, generating a downward thrust at the bottom of the push column 4, pushing the strapping 5 away from the dispensing head nozzle. This prevents the strapping 5 from being pulled away from its original position by the adhesive, thus avoiding displacement.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dispensing separation mechanism, characterized in that: It includes a drive module, which drives the dispensing module and the springback module to move. The dispensing module includes a dispensing head (31). The rebound module includes a push post (4), a threaded sleeve (41) and a return spring (42). The push post (4) is movably sleeved inside the threaded sleeve (41), and the bottom of the push post (4) is provided with a push protrusion (44). The return spring (42) is sleeved on the push post (4), with the lower end of the return spring (42) abutting against the push protrusion (44) and the upper end abutting against the threaded sleeve (41). During dispensing, the return spring (42) is compressed, and during separation, the return spring (42) pushes the push column (4) against the workpiece, separating the workpiece from the dispensing head (31).

2. The dispensing separation mechanism according to claim 1, characterized in that: The drive module includes a pusher (1), a mounting block (11) and a fixing plate (2), and the rebound module is mounted on the fixing plate (2).

3. The dispensing separation mechanism according to claim 2, characterized in that: The fixing plate (2) is provided with a glue head hole (22), and the glue dispensing head (31) is fixed in the glue head hole (22) of the fixing plate (2).

4. The dispensing separation mechanism according to claim 3, characterized in that: The dispensing head (31) is fixed to the dispensing head hole (22) by a threaded connection, and also includes a fixing nut (32). The fixing nut (32) is threaded to the dispensing head (31) to achieve locking and limiting.

5. The dispensing separation mechanism according to claim 2, characterized in that: The fixing plate (2) is provided with mounting holes (21), and the spring-loaded module is fixed in the mounting holes (21).

6. The dispensing separation mechanism according to claim 5, characterized in that: The threaded sleeve (41) is confined within the mounting hole (21) by two positioning nuts (43), and the pre-compression stroke of the return spring (42) is changed by adjusting the position of the positioning nuts (43).

7. The dispensing separation mechanism according to claim 1, characterized in that: The push column (4) is provided with a limiting structure at the top, which limits the range of movement of the push column (4) within the threaded sleeve (41).

8. The dispensing separation mechanism according to claim 7, characterized in that: The limiting structure includes a limiting block (45), which is fixedly installed on the top of the pushing column (4).

9. The dispensing separation mechanism according to claim 2, characterized in that: The fixing plate (2) is provided with a glue head hole (22) and a mounting hole (21), and the glue head hole (22) is located on the front side of the mounting hole (21).

10. The dispensing separation mechanism according to claim 2, characterized in that: The fixing plate (2) is provided with several mounting holes (21), and each set of mounting holes (21) is equipped with an independent spring-loaded module.

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