Hot melt adhesive dispensing machine

Abstract

The utility model discloses a hot melt adhesive dispensing machine which comprises a rack, an object placing table arranged on the rack, and a dispensing machine main body which is arranged above the object placing table and is formed by dispensing heads which are driven by a driving assembly arranged on the rack by adopting a multi-shaft driving structure to move in different directions, a storage table is arranged on the rack, a fixing disc is rotationally arranged on the storage table, the fixing disc is driven by a second driving assembly arranged at the corresponding position of the rack to rotate, and a plurality of clamping assemblies used for clamping and fixing objects are arranged on the fixing disc in a surrounding mode. Through the structural arrangement of the fixing disc on the object placing table and the multiple clamping assemblies on the fixing disc, the clamping and fixing process of multiple sets of objects to be glued in the corresponding number can be carried out, the movable glue dispensing or gluing process of the glue dispensing head driven by the driving assembly on the rack is matched, and the working efficiency of the glue dispensing machine body is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot melt adhesive field, concretely relates to a hot melt adhesive glue dispenser. BACKGROUND

[0002] Hot melt adhesive is a plastic adhesive, its physical state changes with temperature in a certain temperature range, and the chemical properties do not change, it is non-toxic and odorless, and belongs to the environment-friendly chemical product.

[0003] Hot melt adhesive glue dispenser is a common working instrument for hot melt adhesive smearing after hot melt adhesive preparation, which uses solid hot melt adhesive to contact the cold surface after melting by heating, and then solidifies to carry out glue dispensing. At present, the structure of the common hot melt adhesive glue dispenser on the market mostly adopts single-station working mode to carry out hot melt adhesive dispensing or smearing process on the corresponding object, although it has certain use convenience, but for a certain number of objects to be smeared, the conventional object table on the traditional glue dispenser is often inconvenient for object switching, which reduces the working efficiency of the glue dispenser. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a hot melt adhesive glue dispenser, which can clamp and fix a certain number of objects to be smeared, facilitate switching and adjusting of the corresponding object, and effectively improve the working efficiency of the glue dispenser.

[0005] The utility model solves the above problems by the following technical scheme:

[0006] A hot melt adhesive glue dispenser, which comprises a rack, an object table arranged on the rack, a glue dispenser main body formed by a glue dispensing head driven to move in different directions by a driving assembly arranged on the rack through a multi-axis driving structure, a fixed disc rotatably arranged on the object table and driven to rotate by a second driving assembly arranged at a corresponding position of the rack, and a plurality of clamping assemblies arranged around the fixed disc for clamping and fixing objects.

[0007] Preferably, the clamping assembly comprises a chuck mounted on the fixed disc, a fixed block mounted on the chuck at different angles, and a clamping block slidingly arranged in the fixed block, the clamping block being connected to the chuck through an eccentric shaft rotatably arranged on the chuck and a connecting rod rotatably arranged at a corresponding position of the chuck.

[0008] Preferably, a positioning detection module is further arranged between the placement table and the fixing disc, the positioning detection module comprises a plurality of positioning blocks corresponding to positions of the plurality of clamping assemblies and a plurality of detectors arranged on the placement table.

[0009] Preferably, the glue dispensing head is connected with the driving assembly through a connecting seat arranged thereon, and is detachably arranged on the connecting seat through a connecting block detachably arranged on the connecting seat.

[0010] Preferably, the glue dispensing head comprises an outer cylinder and an inner cylinder arranged in the outer cylinder, the inner cylinder is internally provided with a glue storage cavity and is provided with a glue outlet at the bottom and communicated with the glue storage cavity, and the top of the outer cylinder and the inner cylinder is respectively provided with a first cover and a second cover.

[0011] Preferably, a heating ring is further arranged around the inner cylinder and the outer cylinder, and the heating ring is connected with a heater arranged on the rack.

[0012] Compared with the prior art, the hot melt adhesive glue dispensing machine has the following advantages and effects:

[0013] The hot melt adhesive glue dispensing machine has the following advantages and effects: BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a whole structure schematic view of the hot melt adhesive glue dispensing machine.

[0015] Figure 2 is an enlarged view of the structure of the driving assembly on the rack.

[0016] Figure 3 This is an enlarged view of the structure of the shelf on the frame in an embodiment of this utility model.

[0017] Figure 4 This is an enlarged view of the structure of the clamping component on the fixed plate in an embodiment of this utility model.

[0018] Figures 5-6 This is a structural disassembly diagram of the dispensing head according to an embodiment of this utility model.

[0019] Figure Numbers: Frame 100, Table 101, Operation Panel 102, Slide Rail 103, Heater 104, Dispensing Head 1, Outer Cylinder 11, First Cover 111, Inner Cylinder 12, Second Cover 121, Heating Ring 13, Drive Assembly 2, Drive Motor 20, Synchronous Belt 21, Connecting Seat 22, Connecting Block 221, Fixing Plate 3, Second Drive Assembly 31, Clamping Assembly 4, Chuck 41, Fixing Block 42, Clamping Block 43, Eccentric Shaft 44, Connecting Rod 45, Positioning Detection Module 46, Positioning Block 461, Detection Block 462. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0021] See Figures 1-3 This embodiment relates to a hot melt adhesive dispensing machine, including a frame 100 and a platform 101 disposed on it, and a dispensing head 1 moving in different directions driven by a drive assembly 2 disposed on the frame 100 with a multi-axis drive structure above the platform 101. A fixed plate 3 is rotatably disposed on the platform 101 and is driven to rotate by a second drive assembly 31 disposed at a corresponding position on the frame 100. A plurality of clamping assemblies 4 for clamping and fixing objects are arranged around the fixed plate 3.

[0022] Specifically in this embodiment, such as Figure 1 The overall structure of this hot melt adhesive dispensing machine is shown. In practical use, the control panel 102, located on one side of the platform 101 on the frame 100, controls the movement of the dispensing head 1 in different directions and the rotation of the fixed plate 3 via the drive assembly 2 and the second drive assembly 31 on the frame 100. See also [link to other documentation]. Figure 2The drive assembly 2 shown has a multi-axis drive structure, comprising three sets of drive motors 20 that drive the dispensing head 1 to slide forward, backward, left, right, and up and down along the frame 100. These three sets of drive motors 20, via synchronous belt 21 slides located at corresponding positions on the frame 100, drive the synchronous belt 21 to rotate, thereby moving the corresponding seat and the dispensing head 1 along multiple sets of slide rails 103 arranged in different directions at corresponding positions on the frame 100. This, in conjunction with the dispensing process of hot melt adhesive from the dispensing head 1, performs dispensing or coating on objects held and fixed on the platform 101 by clamping components 4 on the fixed plate 3. The fixed plate 3, rotatably mounted on the platform 101, can... Figure 3 The second drive assembly 31, which is set up with a synchronous belt 21, rotates under the drive of the fixed disk 3. At the same time, the fixed disk 3 can drive multiple sets of clamping assemblies 4 on the fixed disk 3 to rotate synchronously. The corresponding number of objects can be clamped and fixed by the clamping assemblies 4 on the fixed disk 3 and moved to the glue application position below the dispensing head 1 as the fixed disk 3 rotates. In conjunction with the drive assembly 2 on the frame 100, the dispensing head 1, which is placed above the table 101, moves in different directions to realize the dispensing or application of hot melt glue to the corresponding objects on the clamping assemblies 4 in the fixed disk 3. Then, after the dispensing head 1 has finished working, the objects can be rotated out and switched on the fixed disk 3 under the drive of the second drive assembly 31. The clamping assemblies 4 can be used to remove the glued objects and add and adjust the objects to be glued. Compared to traditional dispensing machines, this type of hot melt adhesive dispensing machine features a fixed plate 3 on its platform 101 and multiple clamping components 4 on the fixed plate 3. This allows for the clamping and fixing of multiple objects to be coated with adhesive. Combined with the drive component 2 on the frame 100, which drives the dispensing head 1 to move and apply adhesive, this effectively improves the working efficiency of the machine. Furthermore, the fixed plate 3 and its multiple clamping components 4 allow for timely addition and switching of objects after adhesive application. During the adhesive application process, any abnormalities can be addressed by controlling the rotation of the fixed plate 3 on the platform 101 via the second drive component 31, allowing the corresponding object to be rotated out and the next object to be coated to be switched. This facilitates timely adjustments for objects with adhesive application abnormalities without affecting the normal adhesive application process for the next object. In addition, the drive assembly 2 with a multi-axis drive structure on the frame 100, together with the dispensing head 1, can be arranged in multiple sets around and at corresponding positions along the clamping assembly 4 in the fixed plate 3 on the platform 101 according to different usage requirements. This allows the multi-station dispensing process of this dispensing machine to be realized by combining multiple sets of objects to be glued on multiple sets of clamping assemblies 4, thereby further improving the working efficiency and applicability of this hot melt adhesive dispensing machine.

[0023] The clamping assembly 4 includes a chuck 41 mounted on a fixed plate 3, fixed blocks 42 mounted on the chuck 41 at different angles, and a clamping block 43 slidably disposed within the fixed blocks 42. The clamping block 43 is connected to a connecting rod 45 rotatably disposed at a corresponding position on the chuck 41 via an eccentric shaft 44 rotatably disposed on the chuck 41. (See details...) Figure 4 The structure of multiple clamping components 4 on the fixed disk 3 shown allows for the clamping of objects by rotating the connecting rod 45 on the chuck 41 and simultaneously rotating the eccentric shaft 44, which in turn drives the clamping block 43 to slide along the through groove inside the fixed block 42. This enables the clamping and removal of objects by the multiple fixed blocks 42 on the chuck 41 and the clamping block 43. The clamping components 4 with this structure not only facilitate the clamping, fixing, and adjustment of objects, but also allow for the adjustment of the position and number of the multiple fixed blocks 42, clamping blocks 43, and connecting rod 45 on the chuck 41 according to the specific specifications and shape of the objects. This makes it suitable for clamping objects of different specifications and shapes, further improving the clamping effect and applicability of the clamping components 4.

[0024] A positioning detection module 46 is also provided between the storage platform 101 and the fixed plate 3. The positioning detection module 46 includes multiple sets of positioning blocks 461 arranged around the side of the fixed plate 3, corresponding to the positions of multiple sets of clamping components 4, and multiple sets of detectors installed on the storage platform 101 at corresponding positions for detecting the positioning blocks 461. Figure 4 As can be seen, during the rotation of the fixed disk 3 driven by the second drive component 31 on the frame 100, it can drive multiple sets of positioning blocks 461 arranged around its side to rotate around the platform 101. When the positioning block 461 corresponds to the position of the detector, it stops rotating immediately, thereby realizing the positioning and position switching process of multiple sets of clamping components 4 on the fixed disk 3. In conjunction with the dispensing head 1 on the frame 100 driven by the drive component 2 to move in different directions, it can perform dispensing or coating on the corresponding object on the clamping component 4 according to the detection status of the detector and after the fixed disk 3 has finished rotating. The addition of the positioning detection module 46 between the platform 101 and the fixed disk 3 can further improve the positioning accuracy of the clamping component 4 on the fixed disk 3. At the same time, it can effectively improve the effect of dispensing or coating on the corresponding object by the dispensing head 1 and the stability of the dispensing or coating process, and reduce the phenomenon of material waste caused by improper hot melt adhesive application position.

[0025] See Figure 5The dispensing head 1 is connected to the drive assembly 2 via a connecting seat 22, and is detachably mounted on the connecting seat 22 via a detachable connecting block 221. As the dispensing head 1 moves along the frame 100 in different directions with the drive assembly 2, the detachable connecting block 221 on the connecting seat 22 via bolts allows for the disassembly of the dispensing head 1. Simultaneously, by rotating the bolts to adjust the position of the connecting block 221 on the connecting seat 22, the vertical position of the dispensing head 1 between the connecting block 221 and the connecting seat 22 can be adjusted, and the corresponding position can be locked. This allows for adaptive adjustments according to different usage requirements, improving the structural detachability and operational flexibility of the dispensing machine body.

[0026] See Figures 5-6 The dispensing head 1 includes an outer cylinder 11 and an inner cylinder 12 slidably disposed inside it. The inner cylinder 12 has a glue storage cavity inside and a dispensing head communicating with the glue storage cavity at its bottom. The tops of the outer cylinder 11 and the inner cylinder 12 are respectively covered by a first cover 111 and a second cover 121. The dispensing head 1 is locked and fixed to the connecting seat 22 and its connecting block 221 via the outer cylinder 11. Simultaneously, the first cover 111 is detachably connected to the outer cylinder 11 using a threaded rod and threaded connector on its top. When the first cover 111 is opened, the inner cylinder 12 can be installed. When the inner cylinder 12 is placed inside the outer cylinder 11, a certain amount of hot melt adhesive material can be added to its glue storage cavity. After the hot melt adhesive is added... The inner cylinder 12 can be sealed by the outer edge of the inner cylinder 12 and the second cover 121 on the outer edge using a rotating snap-fit ​​design, thereby sealing the first cover 111 on the top of the outer cylinder 11, completing the installation process of the dispensing head 1. During operation, the dispensing head 1 can dispense glue or coat glue onto objects through the glue outlet connected to the glue storage chamber at the bottom of the inner cylinder 12. The dispensing head 1 with this structure of the outer cylinder 11 and inner cylinder 12, with the first cover 111 and the second cover 121 respectively covering them, facilitates the addition of hot melt adhesive raw materials, further improves the structural strength of the dispensing head 1, and provides a certain heat preservation effect. It effectively reduces the cooling rate of the hot melt adhesive in the glue storage chamber inside the inner cylinder 12 and improves the dispensing stability of the hot melt adhesive in the dispensing head 1.

[0027] A heating ring 13 is also arranged around the inner cylinder 12 and the outer cylinder 11. The heating ring 13 is connected to a heater 104 provided on the frame 100. Specifically, during the dispensing process of the hot melt adhesive in the glue storage cavity inside the inner cylinder 12 through the dispensing head provided at the bottom, the heating ring 13 located between the inner cylinder 12 and the outer cylinder 11 can provide a certain heat preservation and heating effect on the hot melt adhesive in the glue storage cavity inside the inner cylinder 12 under the heating action of the heater 104 provided in the frame 100. This can ensure the optimal dispensing stability of the hot melt adhesive, effectively avoid the phenomenon of hot melt adhesive solidifying and clogging the dispensing head, and improve the dispensing stability and uniformity of this type of dispensing head 1.

[0028] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A hot melt adhesive dispensing machine, comprising a frame, a platform mounted thereon, and a dispensing head positioned above the platform and driven by a multi-axis drive structure on the frame to move in different directions, forming the main body of the dispensing machine, characterized in that: The platform is rotatably equipped with a fixed plate, which is driven to rotate by a second drive component located at a corresponding position on the frame. Multiple sets of clamping components for clamping and fixing objects are arranged around the fixed plate.

2. The hot melt adhesive dispensing machine according to claim 1, characterized in that: The clamping assembly includes a chuck mounted on a fixed plate, fixed blocks mounted on the chuck at different angles, and a clamping block slidably disposed within the fixed blocks. The clamping block is connected to a connecting rod rotatably disposed at a corresponding position on the chuck via an eccentric shaft rotatably disposed on the chuck.

3. The hot melt adhesive dispensing machine according to claim 1, characterized in that: A positioning detection module is also provided between the storage platform and the fixed plate. The positioning detection module includes multiple positioning blocks arranged around the side of the fixed plate, corresponding to the positions of multiple clamping components, and multiple detectors installed on the corresponding positions of the storage platform for detecting the positioning blocks.

4. The hot melt adhesive dispensing machine according to claim 1, characterized in that: The dispensing head is connected to the drive assembly via a connecting seat, and can be detachably mounted on the connecting seat via a detachable connecting block.

5. The hot melt adhesive dispensing machine according to claim 1, characterized in that: The dispensing head includes an outer cylinder and an inner cylinder that is slidably disposed inside it. The inner cylinder has a glue storage cavity inside and a dispensing head connected to the glue storage cavity at its bottom. The tops of the outer cylinder and the inner cylinder are respectively covered with a first cover and a second cover.

6. The hot melt adhesive dispensing machine according to claim 5, characterized in that: A heating ring is also arranged around the inner cylinder and the outer cylinder, and the heating ring is connected to a heater on the frame.

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