Dispensing device for plastic shell processing

Abstract

The utility model relates to the technical field of glue dispensing, and discloses a glue dispensing device for plastic shell processing, which comprises a workbench, a glue dispensing table is arranged on the workbench in a sliding manner, and a plastic shell is placed on the glue dispensing table; a clamping mechanism is mounted on the dispensing table, and is used for clamping and fixing a plastic shell; a mounting plate is fixedly arranged on the workbench, a mounting block is slidably arranged on the mounting plate, a first hydraulic cylinder is fixedly mounted on the mounting block, and an output shaft of the first hydraulic cylinder is vertically downward and fixedly connected with a dispensing head; a fence is fixedly arranged at the bottom of the mounting block, and the dispensing head penetrates through the fence; a glue scraping assembly is installed in the fence and is in transmission fit with the glue dispensing head. A glue solution collecting box is arranged at the bottom of the fence in a sliding manner and is in transmission fit with the first hydraulic cylinder through a transmission part. According to the utility model, independent driving sources for driving the glue scraping assembly and the glue solution collecting box are omitted, the driving sources are few, the debugging, control and operation degrees are reduced, the use cost is reduced, and the use efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing, in particular to a glue dispensing device for processing plastic shells. Background Art

[0002] Glue dispensing machines, also known as glue coating machines, glue dripping machines, glue dispensers, and glue filling machines, specialize in controlling fluids. Glue dispensing is used in many industrial applications, such as integrated circuits, semiconductor packaging, printed circuit boards, color LCD screens, electronic components, and automotive parts. Traditionally, glue dispensing relies on manual labor. However, the use of glue dispensing processes in industrial production is increasing, and the requirements are becoming increasingly stringent. Glue dispensing machines are often used in the processing of plastic shells.

[0003] Announcement No.: CN213558097U describes a dispensing device for processing LED lamp plastic shells, including an installation box, an adjustment component, a second servo motor, a storage table, a cylinder and a clamping component. The adjustment component includes a screw and a first servo motor, and the bottom of the inner wall of the installation box is symmetrically provided with a limiting slide groove.

[0004] Announcement No.: CN220969711U describes a dispensing device for processing LED lamp plastic shells, which includes a base and a pad. The pad is fixedly installed at the bottom end of the base, and a dispensing mechanism and a fixing mechanism are provided at the top end of the base.

[0005] Based on the above technical features, the problem that arises is that in the existing technology, when cleaning the glue on the dispensing head, it is necessary to control multiple driving sources at the same time, which makes debugging, control, and operation more difficult, increases the cost of use, and reduces the efficiency of use.

[0006] Therefore, it is necessary to solve the above problems by using a dispensing device for plastic shell processing. Summary of the Invention

[0007] The purpose of the present invention is to provide a dispensing device for processing plastic shells to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dispensing device for processing plastic shells, comprising a workbench, a dispensing table is slidably arranged on the workbench, and a plastic shell is placed on the dispensing table; a clamping mechanism is installed on the dispensing table, and the clamping mechanism clamps and fixes the plastic shell; a mounting plate is fixedly arranged on the workbench, and a mounting block is slidably arranged on the mounting plate, and a first hydraulic cylinder is fixedly installed on the mounting block, and the output shaft of the first hydraulic cylinder is vertically downward and fixedly connected to a dispensing head; a fence is fixedly arranged at the bottom of the mounting block, and the dispensing head passes through the fence; a scraper assembly is installed in the fence, and the scraper assembly is in transmission cooperation with the dispensing head; a glue collection box is slidably arranged at the bottom of the fence, and the glue collection box is in transmission cooperation with the first hydraulic cylinder through a transmission member.

[0009] Preferably, the scraper assembly includes a scraper, which is slidingly matched with the enclosure; a transmission slope is provided on the top of the scraper, and the glue dispensing head is in abutment with the transmission slope for transmission cooperation; the scraper is fixedly connected to a reset spring, and the end of the reset spring away from the scraper is fixedly connected to the enclosure.

[0010] Preferably, the transmission member includes a third hydraulic cylinder, which is fixedly mounted on the enclosure; the output shaft of the third hydraulic cylinder is fixedly connected to the glue collection box; the cylinder body of the first hydraulic cylinder is connected to the cylinder body of the third hydraulic cylinder through an oil pipe.

[0011] Preferably, a slide groove is provided on the top of the workbench, and the dispensing platform is slidingly matched with the slide groove; a motor is fixedly installed on the workbench, and the output shaft of the motor is coaxially fixedly connected to a screw rod, the screw rod is located in the slide groove and is rotatably connected to the workbench; the screw rod is threadedly connected to the dispensing platform.

[0012] Preferably, a second hydraulic cylinder is fixedly arranged on the mounting plate, and an output shaft of the second hydraulic cylinder is fixedly connected to the mounting block.

[0013] Preferably, the output shaft of the second hydraulic cylinder is perpendicular to the screw rod space.

[0014] Preferably, the clamping mechanism includes two clamps, which are symmetrically arranged and both slide in conjunction with the dispensing table; the plastic shell on the dispensing table is located between the two clamps; a driving member is installed on the dispensing table, and the driving member transmits and connects the two clamps to drive the two clamps to slide closer or farther away.

[0015] Preferably, the driving member includes two bolts, both of which are threadedly connected to the dispensing platform; the two bolts correspond one-to-one to the two clamping plates, and each bolt is rotatably connected to the corresponding clamping plate.

[0016] Preferably, the driving member includes two first cylinders, and the two first cylinders are fixedly mounted on the dispensing table; the two first cylinders correspond one-to-one to the two clamping plates, and the output shaft of each first cylinder is fixedly connected to the corresponding clamping plate.

[0017] Preferably, a second cylinder is fixedly arranged on the workbench, and the output shaft of the second cylinder is fixedly connected to the dispensing table; the cylinder bodies of the two first cylinders are connected to the cylinder bodies of the second cylinders through an air pipe respectively.

[0018] The technical effects and advantages of this utility model are:

[0019] First, the dispensing head of the utility model is coordinated with the scraping assembly in transmission, and the first hydraulic cylinder is coordinated with the glue collection box in transmission through the transmission part, which eliminates the need for an independent driving source for driving the scraping assembly and the glue collection box. Only the first hydraulic cylinder needs to be controlled to realize the movement of the dispensing head, the scraping of the scraping assembly and the movement of the glue collection box. There are fewer driving sources, which reduces the degree of debugging, control and operation, reduces the cost of use and improves the efficiency of use.

[0020] Second, the output shaft of the second hydraulic cylinder of the utility model is perpendicular to the screw rod space, so that the dispensing head can dispense glue along the width direction of the plastic shell and along the length direction of the plastic shell, which is more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present utility model;

[0022] Figure 2 This is a partial cross-sectional schematic diagram of the first embodiment of the present utility model;

[0023] Figure 3 This is a partial structural diagram of Example 1 of the utility model;

[0024] Figure 4 This is a schematic diagram of a return spring in accordance with a first embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the interior of the enclosure in accordance with the first embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present utility model;

[0027] Figure 7 This is a schematic diagram of the clamping mechanism of Example 2 of the present utility model.

[0028] In the figure: 1. Workbench; 2. Motor; 3. Slide; 4. Screw; 5. Dispensing station; 6. Bolt; 7. Clamp; 8. Mounting plate; 9. Support plate; 10. First hydraulic cylinder; 11. Second hydraulic cylinder; 12. Mounting block; 13. Dispensing head; 14. Enclosure; 15. Third hydraulic cylinder; 16. First cylinder; 17. Second cylinder; 18. Guide groove; 19. Glue collection box; 20. L-shaped plate; 21. Return spring; 22. Limit slider; 23. Limit groove; 24. Scraper. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Example 1: The present invention provides Figures 1 to 5 The illustrated glue dispensing device for processing plastic shells includes a horizontal workbench 1 with support legs welded to its bottom. A horizontal slot 3 is cut into the top of the workbench 1, with the slot facing vertically upward. A slider slides within the slot 3, and a horizontal glue dispensing platform 5 is welded to the top of the slider. The plastic shell is placed on the glue dispensing platform 5.

[0031] A motor 2 is bolted to the workbench 1. The motor's output shaft rotates horizontally and enters a chute 3. A screw 4 is positioned horizontally within the chute 3, along the direction of the slider's movement. This screw 4 is rotatably connected to the workbench 1. The screw 4 extends through the slider and is threadedly connected to the slider, driving the slider's horizontal movement.

[0032] The dispensing station 5 is equipped with a clamping mechanism that holds the plastic shell in place. The clamping mechanism includes two clamping plates 7 and a driver. The two clamping plates 7 are symmetrical about the plastic shell and slide in a limited position relative to the dispensing station 5. The driver is connected to the two clamping plates 7, driving them to slide toward or away from the plastic shell.

[0033] The drive assembly includes two bolts 6. Two fixed blocks are welded to the dispensing station 5, with two clamping plates 7 positioned between the two fixed blocks. Each bolt 6 is threadedly connected to a fixed block. The two bolts 6 correspond to the two clamping plates 7, and each bolt 6 is rotatably connected to its corresponding clamping plate 7.

[0034] A vertical mounting plate 8 is welded and fixed on the top of the workbench 1, and a horizontal support plate 9 is welded and fixed on the mounting plate 8. A guide groove 18 is cut out in the horizontal direction on the support plate 9, and the guide groove 18 is a through groove and has a cross-shaped vertical section.

[0035] An I-shaped mounting block 12 slides within the guide groove 18. The top of the mounting block 12 engages within the guide groove 18 and slides therewith. A second hydraulic cylinder 11 is bolted to the mounting plate 8. The output shaft of the second hydraulic cylinder 11 slides horizontally through the guide groove 18 and is fixedly connected to the mounting block 12, thereby pushing the mounting block 12 to slide horizontally.

[0036] A first hydraulic cylinder 10 is bolted to the mounting block 12. The output shaft of the first hydraulic cylinder 10 is vertically downward and coaxially fixedly connected to a dispensing head 13. The dispensing head 13 is cylindrical, and the head position is conical. The head position of the dispensing head 13 is located at the end of the dispensing head 13 away from the first hydraulic cylinder 10, and is also located above the plastic shell. The barrel radius of the dispensing head 13 is the same as the radius of the output shaft of the first hydraulic cylinder 10. The output shaft of the second hydraulic cylinder 11 is perpendicular to the screw 4. Ensure that the dispensing head 13 can dispense glue along the length direction of the plastic shell and along the width direction of the plastic shell.

[0037] A retaining bracket 14 is welded to the bottom of the mounting block 12. This bracket is a circular frame with a sealed top and an open bottom. The output shaft of the first hydraulic cylinder 10 slides through the top of retaining bracket 14, and the dispensing head 13 is located within it. A scraping assembly is housed within retaining bracket 14, in a transmission-coordinated manner with the dispensing head 13. When the dispensing head 13 passes downward through retaining bracket 14, it pushes the scraping assembly into action.

[0038] The scraper assembly includes a scraper 24, to which two cross-shaped limit sliders 22 are welded and fixed. The scraper 24 is arranged horizontally and located between the two limit sliders 22. Two cross-shaped limit slots 23 are chiseled horizontally on the enclosure 14. The two limit sliders 22 correspond one-to-one with the two limit slots 23, and each limit slider 22 slides in a limited position with the corresponding limit slot 23. A return spring 21 is arranged in each limit slot 23 along the sliding direction of the limit slider 22. One end of each return spring 21 is fixedly connected to the limit slider 22 in its limit slot 23, and the other end of each return spring 21 is fixedly connected to the enclosure 14, used to reset the scraper 24.

[0039] A downward-inclined transmission slope is cut on the top of the scraper 24 , and the dispensing head 13 is located directly above the transmission slope and abuts against the transmission slope for transmission cooperation.

[0040] An L-shaped plate 20 is welded to the enclosure 14, with its horizontal plate fixedly connected to the enclosure 14. A third hydraulic cylinder 15 is bolted to its vertical plate. The output shaft of the third hydraulic cylinder 15 is arranged horizontally, near the enclosure 14. The output shaft of the third hydraulic cylinder 15 is fixedly connected to a glue collection box 19, which is slidably connected to the bottom of the enclosure 14 to collect the scraped glue.

[0041] The cylinder body of the third hydraulic cylinder 15 is connected to the cylinder body of the first hydraulic cylinder 10 via an oil pipe. A rotary pump is bolted to the first hydraulic cylinder 10, connecting the rotary pump to the cylinder body of the first hydraulic cylinder 10 and the oil pipe. This ensures that when the output shaft of the first hydraulic cylinder 10 extends, the output shaft of the third hydraulic cylinder 15 retracts; when the output shaft of the first hydraulic cylinder 10 retracts, the output shaft of the third hydraulic cylinder 15 extends. This also ensures that the travel of the dispensing head 13 and the travel of the glue collection box 19 do not overlap.

[0042] A clearance groove is cut on the mounting plate 8, and the third hydraulic cylinder 15 passes through the clearance groove and slides horizontally in the clearance groove. The third hydraulic cylinder 15, the oil pipe and the rotor pump together constitute the transmission part

[0043] Working Principle of Example 1: During use, place the plastic shell on the dispensing platform 5 and tighten the two bolts 6. These bolts push the connected clamping plates 7 toward the plastic shell. When the clamping plates 7 are firmly against the plastic shell, tighten the bolts 6. Then, start the motor 2. The output shaft of the motor 2 rotates the screw 4, which pushes the dispensing platform 5 to move to the dispensing position.

[0044] Next, the second hydraulic cylinder 11 is activated. The output shaft of the second hydraulic cylinder 11 drives the mounting block 12 to move directly above the plastic shell dispensing position. The mounting block 12 then drives the dispensing head 13 to move directly above the plastic shell dispensing position via the first hydraulic cylinder 10. The rotor pump on the first hydraulic cylinder 10 is then activated. The rotor pump pumps the hydraulic oil in the third hydraulic cylinder 15 into the cylinder body of the first hydraulic cylinder 10. The output shaft of the first hydraulic cylinder 10 extends, while the output shaft of the third hydraulic cylinder 15 retracts.

[0045] During this process, the output shaft of the first hydraulic cylinder 10 drives the dispensing head 13 to move downward close to the plastic shell, and the output shaft of the third hydraulic cylinder 15 drives the glue collecting box 19 to move away from the enclosure 14.

[0046] As the dispensing head 13 approaches the plastic shell, it contacts the transmission slope on the top of the scraper 24. As the dispensing head 13 continues to move downward, the dispensing head 13 pushes the scraper 24 to slide horizontally, and the scraper 24 stretches the connected return spring 21.

[0047] The dispensing head 13 then disengages from the transmission ramp at the top of the scraper 24, and the tapered surface at the head of the dispensing head 13 slides into contact with the scraper 24. As the dispensing head 13 continues to move downward, the tapered surface at the head of the dispensing head 13 disengages from the scraper 24, and the scraper 24 becomes stationary relative to the enclosure 14. Simultaneously, the outer curved surface of the dispensing head 13, not at the head, slides into contact with the scraper 24.

[0048] Then the glue dispensing head 13 continues to move downward, and passes through enclosure 14, and finally completes the glue dispensing operation. Before the head position of the glue dispensing head 13 passes through enclosure 14, the glue collecting box 19 has opened the bottom opening of enclosure 14 completely.

[0049] After the dispensing operation is completed, the rotor pump pumps the hydraulic oil in the first hydraulic cylinder 10 into the third hydraulic cylinder 15, the output shaft of the first hydraulic cylinder 10 retracts, and the output shaft of the third hydraulic cylinder 15 extends. Thereafter, the dispensing head 13 moves upward away from the plastic shell, and the glue collection box 19 slides closer to the enclosure 14.

[0050] Once the dispensing head 13 has completely ascended and settled within the enclosure 14, the end of the glue collection box 19, away from the third hydraulic cylinder 15, moves below the dispensing head 13. As the dispensing head 13 continues to ascend, it slides against the inclined transmission surface at the top of the scraper 24. During this process, the return spring 21 contracts, pulling the scraper 24 to scrape off any glue that has overflowed from the dispensing head 13 due to gravity.

[0051] Afterwards, the glue dispensing head 13 continuously moves up and is separated from the scraper 24 and finally resets to the position before the glue dispensing. At this moment, the glue collecting box 19 blocks the opening at the bottom of the enclosure 14 completely.

[0052] When the dispensing position needs to be changed, the second hydraulic cylinder 11 and the motor 2 are started to make adjustments.

[0053] Example 2: The present invention provides Figures 6 and 7 The dispensing device for plastic shell processing shown in this embodiment is different from the first embodiment in that the driving part includes a second cylinder 17 and multiple first cylinders 16. In this embodiment, the number of first cylinders 16 is preferably four. The second cylinder 17 is bolted to the workbench 1, and the output shaft of the second cylinder 17 is fixedly connected to the dispensing table 5. The four first cylinders 16 are divided into two groups of two, and the two groups of first cylinders 16 correspond one-to-one to the two splints 7. The two fixed blocks on the dispensing table 5 are each fixedly connected to two first cylinders 16, and the first cylinders 16 in different groups correspond one-to-one, and the output shafts of the corresponding first cylinders 16 are horizontally opposed. The output shafts of the two first cylinders 16 located on the same fixed block are fixedly connected to the same corresponding splint 7. The cylinder body of each first cylinder 16 is connected to the cylinder body of the second cylinder 17 through an air pipe.

[0054] Working principle of the second embodiment: When in use, the motor 2 is started, the output shaft of the motor 2 drives the screw 4 to rotate, and the screw 4 pushes the dispensing platform 5 to move horizontally. The dispensing platform 5 drives the output shaft of the second cylinder 17 to extend and retract.

[0055] When the output shaft of the second cylinder 17 retracts, the gas in the second cylinder 17 flows into each first cylinder 16 through the air pipe, and the output shaft of each first cylinder 16 extends and drives the connected clamping plate 7 to slide close to the plastic shell, thereby clamping the plastic shell.

[0056] When the output shaft of the second cylinder 17 extends, the gas in each first cylinder 16 flows into the second cylinder 17 through the air pipe, and the output shaft of each first cylinder 16 retracts and drives the connected clamping plate 7 to slide away from the plastic shell, thereby releasing the clamping of the plastic shell.

[0057] The rest of the working process of this embodiment is the same as that of the first embodiment and will not be described in detail here.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dispensing device for processing plastic shells, comprising a workbench (1), characterized in that: A dispensing table (5) is slidably arranged on the workbench (1), and a plastic shell is placed on the dispensing table (5); a clamping mechanism is installed on the dispensing table (5), and the clamping mechanism clamps and fixes the plastic shell; a mounting plate (8) is fixedly arranged on the workbench (1), and a mounting block (12) is slidably arranged on the mounting plate (8), and a first hydraulic cylinder (10) is fixedly installed on the mounting block (12), and the output shaft of the first hydraulic cylinder (10) is vertically downward and fixedly connected to the dispensing head (13); a fence (14) is fixedly arranged at the bottom of the mounting block (12), and the dispensing head (13) passes through the fence (14); a scraping assembly is installed in the fence (14), and the scraping assembly is in transmission cooperation with the dispensing head (13); a glue collection box (19) is slidably arranged at the bottom of the fence (14), and the glue collection box (19) is in transmission cooperation with the first hydraulic cylinder (10) through a transmission member.

2. The dispensing device for plastic shell processing according to claim 1, characterized in that: The scraper assembly includes a scraper (24), and the scraper (24) is in limited sliding cooperation with the enclosure (14); a transmission inclined surface is provided on the top of the scraper (24), and the glue dispensing head (13) is in abutment with the transmission inclined surface for transmission cooperation; the scraper (24) is fixedly connected to a reset spring (21), and the end of the reset spring (21) away from the scraper (24) is fixedly connected to the enclosure (14).

3. The dispensing device for plastic shell processing according to claim 1, characterized in that: The transmission member comprises a third hydraulic cylinder (15), which is fixedly mounted on the enclosure (14); an output shaft of the third hydraulic cylinder (15) is fixedly connected to a glue collection box (19); and a cylinder body of the first hydraulic cylinder (10) is connected to a cylinder body of the third hydraulic cylinder (15) via an oil pipe.

4. The dispensing device for plastic shell processing according to claim 1, characterized in that: A slide groove (3) is provided on the top of the workbench (1), and the dispensing platform (5) is in limited sliding cooperation with the slide groove (3); a motor (2) is fixedly installed on the workbench (1), and the output shaft of the motor (2) is coaxially fixedly connected to a screw rod (4), and the screw rod (4) is located in the slide groove (3) and is rotatably connected to the workbench (1); the screw rod (4) is threadedly connected to the dispensing platform (5).

5. The dispensing device for processing plastic shells according to claim 4, characterized in that: A second hydraulic cylinder (11) is fixedly arranged on the mounting plate (8), and an output shaft of the second hydraulic cylinder (11) is fixedly connected to a mounting block (12).

6. The dispensing device for processing plastic shells according to claim 5, characterized in that: The output shaft of the second hydraulic cylinder (11) is spatially perpendicular to the screw rod (4).

7. The dispensing device for processing plastic shells according to claim 1, characterized in that: The clamping mechanism comprises two clamping plates (7), which are symmetrically arranged and both slide in conjunction with the dispensing platform (5) in a limited manner; the plastic shell on the dispensing platform (5) is located between the two clamping plates (7); a driving member is installed on the dispensing platform (5), and the driving member is connected to the two clamping plates (7) for driving the two clamping plates (7) to slide closer or farther away.

8. The dispensing device for processing plastic shells according to claim 7, characterized in that: The driving member comprises two bolts (6), both of which are threadedly connected to the dispensing platform (5); the two bolts (6) correspond one to one with the two clamping plates (7), and each bolt (6) is rotatably connected to the corresponding clamping plate (7).

9. The dispensing device for processing plastic shells according to claim 7, characterized in that: The driving member comprises two first cylinders (16), and the two first cylinders (16) are fixedly mounted on the dispensing platform (5); the two first cylinders (16) correspond to the two clamping plates (7) one by one, and the output shaft of each first cylinder (16) is fixedly connected to the corresponding clamping plate (7).

10. The dispensing device for processing plastic shells according to claim 9, characterized in that: A second cylinder (17) is fixedly arranged on the workbench (1), and an output shaft of the second cylinder (17) is fixedly connected to the dispensing table (5); the cylinder bodies of the two first cylinders (16) are each connected to the cylinder body of the second cylinder (17) through an air pipe.

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