A tape film tearing and feeding device

Abstract

The present invention relates to the field of automatic film tearing technology, specifically to a tape film tearing and feeding device, further comprising: a transfer component, a silo component, a pre-positioning component and a feeding component, wherein the transfer component picks up the tape of the silo component and sequentially transfers it to the pre-positioning component, the tape film tearing device and the feeding component, and sequentially completes the pre-positioning of the tape, the tearing of the protective film and the feeding of the tape. The present invention realizes the full process automation of the feeding, positioning and film tearing of the tape, and greatly improves the production efficiency and reduces the labor intensity and cost of manual labor compared to the traditional production method.

Description

Technical Field

[0001] The invention relates to the technical field of automatic film tearing, and in particular to an adhesive tape film tearing and feeding device. Background Art

[0002] In the production process of liquid crystal displays, liquid crystal panels and other products, the light strips at the edge of the light guide plate need to be attached with thermal conductive adhesive strips before assembly to protect the light strips, improve the heat conduction and heat dissipation capabilities of the light strips, and increase the service life of the light strips. Before attaching to the light strips, attaching with a protective film helps protect the sticky surface of the adhesive strips and prevents dust and impurities from contaminating; when attaching, the protective film needs to be torn off first, and then the adhesive strips are attached to the light strips.

[0003] In the prior art, the feeding, tearing, and attaching of the tape all need to be done manually. When tearing the film manually, dust will inevitably fall on the tape to be attached, resulting in a decrease in product quality. At the same time, the speed of manual film tearing is greatly affected by the proficiency of the personnel. The products after film tearing need to be attached manually, and the labor intensity of the employees is relatively high, and they are easily tired. The production efficiency of the enterprise is not easy to control, and the labor cost is also relatively high. Therefore, how to achieve efficient feeding, tearing, and attaching of the tape is a problem that technical personnel in this field need to consider. Summary of the invention

[0004] The purpose of the present invention is to provide a tape tearing and feeding device to solve the problems of low efficiency in feeding, tearing and attaching of thermal conductive tape in the prior art.

[0005] The technical solution of the present invention is: a tape film-tearing device, wherein the tape comprises a tape and a protective film, and the tape film-tearing device comprises:

[0006] A first suction cup assembly, which absorbs the adhesive strip and moves to a film-tearing station;

[0007] The film lifting assembly is arranged at the film tearing station, and comprises a first driving device and a clamping device connected to the first driving device, wherein the first driving device can drive the clamping device to move in a first direction and a second direction at the same time;

[0008] The film tearing assembly is arranged at the film tearing station, and comprises a second driving device and a separation rod, wherein the second driving device drives the separation rod to move in a first direction, and the length direction of the separation rod is perpendicular to the first direction;

[0009] Among them, the clamping jaw device clamps the protective film, and the first driving device drives the clamping jaw device to move to the bottom of the tape to complete the film tearing and bend the protective film of the film-tear part into an S shape; the separation rod is driven by the second driving device, and moves from the top of the clamping jaw device to the first direction, approaches and slides with the protective film to complete the film tearing.

[0010] Preferably, the clamping jaw device comprises an upper clamping jaw and a lower clamping jaw, the upper end surface of the lower clamping jaw is lower than the protective film; the upper clamping jaw moves downward to approach the lower clamping jaw and completes the clamping of the protective film.

[0011] Preferably, the first direction is a horizontal direction, and the second direction is a vertical direction. When tearing the film, the first driving device drives the clamping device to move to just below the rubber strip.

[0012] A feeding device includes a tape tearing device, and also includes: a transfer component, a silo component, a pre-positioning component and a discharge component. The transfer component picks up the tape of the silo component and transfers it to the pre-positioning component, the tape tearing device and the discharge component in sequence, and completes the pre-positioning of the tape, the tearing of the protective film and the discharge of the tape in sequence.

[0013] Preferably, the transfer assembly is connected to a second suction cup assembly, and the second suction cup assembly is connected to the transfer assembly via a third driving device with a vertical driving direction;

[0014] When the second suction cup assembly sucks the adhesive tape at the silo assembly, the third driving device drives the second suction cup assembly to reciprocate in the vertical direction at least twice.

[0015] Preferably, the silo assembly includes a first carrier plate, a first lifting device arranged below the first carrier plate, and a first positioning assembly with an upper end portion passing through the first carrier plate, and the tape is placed on the first carrier plate and limited by the first positioning assembly.

[0016] Preferably, the pre-positioning assembly comprises a second carrier plate, and a second positioning assembly having an upper end portion penetrating the second carrier plate;

[0017] The second carrier is provided with a first substrate;

[0018] The second positioning assembly includes a first positioning rod and a second positioning rod. During pre-positioning, the first positioning rod pushes the tape against the first substrate, while the second positioning rod pushes the tape from an adjacent side to a predetermined position.

[0019] Preferably, the unloading assembly includes a third carrier plate, a second lifting device with an upper end penetrating the third carrier plate, a fourth driving device connected to the third carrier plate and capable of driving the third carrier plate to move in the first direction, a mechanical arm, and a third suction cup assembly connected to the mechanical arm;

[0020] The first suction cup assembly places the torn rubber strip on the third carrier plate, and at the same time, the fourth driving device drives the third carrier plate to move to reduce the adhesion between the rubber strip and the third carrier plate;

[0021] When the robot arm drives the third suction cup assembly to absorb the rubber strip, the second lifting device lifts the rubber strip upward to separate from the third carrier plate.

[0022] Preferably, the first suction cup assembly is connected to the transfer assembly, and the first suction cup assembly sucks the tape at the pre-positioning assembly and is transferred to the film tearing station and the unloading assembly in sequence under the drive of the transfer assembly.

[0023] A film tearing method, applied to a tape film tearing device, comprises the following steps:

[0024] S1, the first suction cup assembly sucks the rubber strip and remains stationary at the film tearing station;

[0025] S2, clamping the protective film by the clamping claw device, and moving in the first direction and the second direction simultaneously to the bottom of the rubber strip under the drive of the first driving device;

[0026] S3, the second driving device drives the separation rod to move in the first direction to push the protective film and complete the separation of the protective film;

[0027] Among them, in S2, the protective film close to the clamping jaw device is bent and S-shaped.

[0028] Compared with the prior art, the advantages of the present invention are:

[0029] (1) During the film peeling process, the film peeling and tearing actions are performed sequentially. During the film peeling process, the protective film is bent into an S shape, which can ensure effective film peeling and at the same time, play a role of pressing the rubber strip; including that during the film peeling process, the protective film is pushed by the separation rod, and the protective film is always bent in an S shape; the S-shaped structure can press the rubber strip upward, so that the rubber strip can be more stably adsorbed on the first suction cup assembly, avoiding the rubber strip from deflecting on the first suction cup assembly during the film peeling and tearing process;

[0030] In addition, the film tearing work is completed by pushing the protective film through the separation rod, the structural design is simple, and the mechanism occupies less space;

[0031] (2) When the second suction cup assembly absorbs the adhesive tape, it moves back and forth rapidly in the vertical direction, causing shaking, which can avoid the occurrence of the situation where two or more pieces of adhesive tape are absorbed at the same time;

[0032] (3) After the film is torn off, at the moment when the adhesive strip is placed on the third carrier, the third carrier is driven by the fourth driving device to move quickly once, which can reduce the adhesion force between the adhesive strip and the third carrier when it is placed, so as to facilitate the removal of the adhesive strip;

[0033] In addition, when the rubber strip on the third carrier is taken out, the rubber strip is separated from the third carrier by the lifting and feeding of the second lifting device, thereby further avoiding the occurrence of situations such as failure to take out or unstable taking out due to adhesion of the rubber strip;

[0034] (4) The present invention realizes the full automation of the production process of the tape including feeding, positioning and film tearing, which greatly improves the production efficiency and reduces the labor intensity and cost compared with the traditional production method. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0036] Figure 1 It is a structural schematic diagram of the feeding device of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the transfer assembly of the present invention;

[0038] Figure 3 It is a structural schematic diagram of the silo assembly of the present invention;

[0039] Figure 4 It is a structural schematic diagram of the pre-positioning component of the present invention;

[0040] Figure 5 It is a structural schematic diagram of the adhesive tape film tearing device of the present invention;

[0041] Figure 6 It is a structural schematic diagram of the blanking assembly of the present invention;

[0042] Figure 7 It is a structural schematic diagram of the adhesive tape of the present invention;

[0043] Figure 8 This is a schematic diagram of the action flow of film tearing according to the present invention;

[0044] Fig. 9 It is a schematic structural diagram of a case where a cloth piece is arranged on the separation rod of the present invention.

[0045] Wherein: a transfer assembly 1, a first suction cup assembly 11, a fifth drive device 111, a second suction cup assembly 12, and a third drive device 121;

[0046] Bin assembly 2, first carrier plate 21, first lifting device 22, first positioning assembly 23, limiting rod 231, brush 232;

[0047] Pre-positioning assembly 3, second carrier plate 31, first substrate 311, second positioning assembly 32, first positioning rod 321, second positioning rod 322;

[0048] Adhesive tape film tearing device 4, film tearing station 4a, film lifting assembly 41, first driving device 411, clamping device 412, upper clamping jaw 4121, lower clamping jaw 4122, film tearing assembly 42, second driving device 421, separation rod 422, cloth piece 423, collection box 43;

[0049] The material unloading assembly 5, the third carrier plate 51, the clearance groove 511, the second base plate 512, the second lifting device 52, the lifting rod 521, the fourth driving device 53, the mechanical arm 54, and the third suction cup assembly 541;

[0050] Adhesive tape 6, adhesive strip 61, protective film 62. DETAILED DESCRIPTION

[0051] The present invention is further described in detail below in conjunction with specific embodiments:

[0052] Before assembling the light bar with the LCD display, tape needs to be attached to the light bar. Figure 1 As shown, the present invention is applied to the pre-treatment before the tape is attached. The tape is taken by the hopper component under the drive of the transfer component, transferred to the pre-positioning component for pre-positioning, and then transferred to the film tearing station for tearing off the protective film. After the film is torn off, the tape is transferred to the unloading component, and finally transferred out by the mechanical arm of the unloading component and attached to the light bar. In this embodiment, as shown in FIG. Figure 7 As shown, the adhesive tape 6 is composed of six parallel adhesive strips 61 and is simultaneously attached to a protective film 62. Specifically:

[0053] like Figure 1-Figure 2 As shown, the loading device includes a transfer component 1, a silo component 2, a pre-positioning component 3, a tape film tearing device 4 and a unloading component 5.

[0054] The transfer assembly 1 is connected with a first suction cup assembly 11 and a second suction cup assembly 12. The first suction cup assembly 11 is plate-shaped and is provided with six groups of negative pressure hole groups, which correspond to six rubber strips respectively. The first suction cup assembly 11 is connected to the transfer assembly 1 through a fifth driving device 111 that can drive its vertical movement. The second suction cup assembly 12 has multiple suction nozzles; the second suction cup assembly 12 is connected to the transfer assembly 1 through a third driving device 121 whose driving direction is vertical.

[0055] In this embodiment, the first suction cup assembly 11 and the second suction cup assembly 12 can be driven to move simultaneously by the transfer assembly 1. In other embodiments, the first suction cup assembly 11 and the second suction cup assembly 12 can be respectively arranged on two transfer assemblies 1, but it is required to enable the second suction cup assembly 12 to reciprocate at the silo assembly 2 and the pre-positioning assembly 3; the first suction cup assembly 11 can move at the pre-positioning assembly 3, the film tearing station 4a and the unloading assembly 5.

[0056] like Figure 3 As shown, the silo assembly 2 includes a first carrier plate 21, a first lifting device 22 arranged below the first carrier plate 21, and a first positioning assembly 23 with an upper end penetrating the first carrier plate 21. The tape is stacked and placed on the first carrier plate 21 and limited to the first positioning assembly 23.

[0057] In the present embodiment, the first positioning assembly 23 includes a plurality of limit rods 231, and the plurality of limit rods 231 are arranged around the tape to position the tape. When the second suction cup assembly 12 absorbs the tape at the silo assembly 2, due to the negative pressure and static electricity formed between the stacked tapes, two or more pieces of tape may be absorbed at the same time. Therefore, after absorption, the third drive device 121 drives the second suction cup assembly 12 to rapidly reciprocate at least twice in the vertical direction, and through rapid shaking, multiple pieces of tape are prevented from being absorbed at the same time. In addition, in the present embodiment, a brush 232 facing the tape is provided on the limit rod 231. When the tape is absorbed by the second suction cup assembly 12 and moves upward, the edge rubs against the brush 232, so that the excess tape absorbed at the same time falls off, further avoiding the occurrence of the situation where multiple pieces of tape are absorbed at the same time.

[0058] At the silo assembly 2, each time a piece of adhesive tape is taken away, the first lifting device 22 drives the first carrier plate 21 to move upward by a distance of the thickness of the adhesive tape, so as to ensure that the uppermost layer of adhesive tape at the silo assembly 2 is always on the same plane, so as to facilitate the suction of the second suction cup assembly 12. Of course, in actual operation, it can also be set that each time three pieces or other number of adhesive tapes are taken away, the first lifting device 22 drives the first carrier plate 21 to move upward by a distance of three pieces of adhesive tape thickness or multiple pieces of adhesive tape thickness.

[0059] like Figure 4 As shown, the pre-positioning assembly 3 includes a second carrier plate 31, and a second positioning assembly 32 whose upper end penetrates the second carrier plate 31. A first base plate 311 is arranged on the second carrier plate 31; the second positioning assembly 32 includes a first positioning rod 321 and a second positioning rod 322. During pre-positioning, the first positioning rod 321 pushes the tape against the first base plate 311, and the second positioning rod 322 pushes the tape from the adjacent side to the predetermined position.

[0060] In this embodiment, the first positioning rod 321 and the second positioning rod 322 are respectively driven by corresponding driving mechanisms, and corresponding yielding grooves for the movement of the first positioning rod 321 and the second positioning rod 322 are provided on the second carrier plate 31. These are all existing technologies and will not be described in detail.

[0061] like Figure 5 As shown, the tape film tearing device 4 includes a film-lifting assembly 41 and a film-tearing assembly 42 arranged at the film-tearing station 4a, wherein the film-lifting assembly 41 includes a first driving device 411 and a clamping device 412 connected to the first driving device 411, and the first driving device 411 can drive the clamping device 412 to move in the first direction and the second direction at the same time. The film-tearing assembly 42 includes a second driving device 421 and a separation rod 422, and the second driving device 421 can drive the separation rod 422 to move in the first direction, and the length direction of the separation rod 422 is perpendicular to the first direction. A collection box 43 is arranged directly below the film-tearing station 4a.

[0062] In this embodiment, when tearing the film, Figure 8 As shown, the following steps are included: S1, the first suction cup assembly 11 sucks the tape on the second carrier 31 under the cooperative driving of the transfer assembly 1 and the fifth driving device 111, and transfers it to the film tearing station 4a and stops. When the first suction cup assembly 11 sucks the tape, the six negative pressure hole groups correspond to the six adhesive strips on the tape.

[0063] S2, the clamping device 412 clamps the protective film and moves in the first direction and the second direction at the same time under the drive of the first driving device 411. At this time, the protective film that has completed the filming and bent the filming part is S-shaped, and the clamping device 412 moves to the bottom of the tape.

[0064] The clamping device 412 includes an upper clamping jaw 4121 and a lower clamping jaw 4122. The upper end surface of the lower clamping jaw 4122 should be slightly lower than the protective film. The upper clamping jaw 4121 moves downward to approach the lower clamping jaw 4122 to complete the clamping of the protective film. The first direction is the horizontal direction, and the second direction is the vertical direction. When the film is removed, the movement of the clamping device 412 is an inclined downward movement.

[0065] S3. Driven by the second driving device 421, the separation rod 422 moves in the first direction above the clamping device 412 to approach and push the protective film until the protective film is completely separated from the rubber strip, and the film tearing is completed.

[0066] The length direction of the separation rod 422 is perpendicular to the first direction. When the separation rod 422 pushes the protective film, the contact position with the protective film is the bending part of the protective film in the S-shaped bending part close to the clamping device 412.

[0067] After the film is torn off, the clamping device 412 is opened, and the protective film falls freely into the collection box 43 below.

[0068] It should be noted that in actual operation, in order to avoid static electricity, an ion blower (not shown in the figure) is provided at the film tearing station 4a. However, the length of the tape is relatively long. When the separation rod 422 pushes the protective film and more than half of it is torn off, the torn part will be blown and swung by the ion blower, which may cause the tape to deviate or the protective film to fail to fall accurately into the collection box 43 after being torn off. Therefore, a piece of cloth 423 (such as Fig. 9 As shown in FIG. 4 ), when the separation rod 422 pushes the protective film, the cloth sheet 423 presses the protective film downward to prevent the protective film from swinging. In addition, the cloth sheet should be made of an anti-adhesion material.

[0069] The unloading assembly 5 includes a third carrier plate 51, a second lifting device 52 whose upper end passes through the third carrier plate 51, a fourth driving device 53 connected to the third carrier plate 51 and capable of driving the third carrier plate 51 to move in a first direction, a robotic arm 54, and a third suction cup assembly 541 connected to the robotic arm 54.

[0070] The upper surface of the third carrier plate 51 is provided with an anti-adhesion setting, and a plurality of clearance grooves 511 are arranged in parallel. The second lifting device 52 includes a lifting rod 521, a sixth driving device (not shown in the figure) driving the lifting rod 521 to move vertically, and a seventh driving device (not shown in the figure) driving the lifting rod 521 to move horizontally. Among them, the upper end surface of the lifting rod 521 is provided with an anti-adhesion setting or attached with an anti-adhesion material; there are a plurality of lifting rods 521, and each of them passes through the clearance grooves 511.

[0071] In this embodiment, under the cooperative driving of the transfer component 1 and the fifth drive device 111, the first suction cup component 11 places the torn rubber strip on the third carrier plate 51; at the moment of placement, the fourth drive device 53 drives the third carrier plate 51 to move horizontally for a certain distance, so that the upper surface of the third carrier plate 51 and the sticky surface of the rubber strip slide relative to each other, which can avoid the rubber strip and the third carrier plate 51 from sticking together due to the pressure of the first suction cup component 11 during the placement process.

[0072] When picking up materials, the robot arm 54 drives the third suction cup assembly 541 to suck up a single rubber strip. Driven by the cooperation of the sixth drive device and the seventh drive device, the lifting rod 521 moves to the bottom of the corresponding rubber strip, and lifts it upward to make the rubber strip separate from the third carrier plate 51; the third suction cup assembly 541 sucks it, and then it is transferred to the light strip by the robot arm 54 to complete the attachment and assembly with the light strip. In order to further ensure the accuracy of the position when the third suction cup assembly 541 sucks the rubber strip, a second substrate 512 can be set at the edge of the third carrier plate 51. After the third suction cup assembly 541 sucks the rubber strip, it can move to the second substrate 512 and abut against the second substrate 512 to position the rubber strip. In addition, a visual positioning device (not shown in the figure) can be set directly above the third carrier plate 51 and on the movement path of the third suction cup assembly 541 to further assist in the positioning of the tape. This is a prior art and will not be repeated in this embodiment.

[0073] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A feeding device, characterized in that: It includes a tape tearing device, a transfer component, a silo component, a pre-positioning component and a material unloading component. The transfer component picks up the tape of the silo component and transfers it to the pre-positioning component, the tape tearing device and the material unloading component in sequence, and completes the pre-positioning of the tape, the tearing of the protective film and the unloading of the tape in sequence; The adhesive tape comprises an adhesive strip and a protective film; The adhesive tape film tearing device comprises: A first suction cup assembly, which absorbs the adhesive tape and moves to a film-tearing station; The film lifting assembly is arranged at the film tearing station, and comprises a first driving device and a clamping device connected to the first driving device, wherein the first driving device can drive the clamping device to move in a first direction and a second direction at the same time; The film tearing assembly is arranged at the film tearing station, and comprises a second driving device and a separation rod, wherein the second driving device drives the separation rod to move in a first direction, and the length direction of the separation rod is perpendicular to the first direction; The clamping device clamps the protective film, and the first driving device drives the clamping device to move to the bottom of the adhesive tape, so as to complete the film tearing and bend the protective film in the film tearing part into an S shape; the separation rod is connected with a cloth piece, and under the drive of the second driving device, moves in the first direction above the clamping device, approaches and slides with the protective film, so that the protective film is always bent in an S shape; at the same time, the cloth piece presses the protective film downward, and the film tearing is completed; The unloading assembly includes a third carrier plate, a second lifting device with an upper end penetrating the third carrier plate, a fourth driving device connected to the third carrier plate and capable of driving the third carrier plate to move in a first direction, a mechanical arm, and a third suction cup assembly connected to the mechanical arm; The first suction cup assembly places the torn adhesive strip on the third carrier plate, and at the same time, the fourth driving device drives the third carrier plate to move to reduce the adhesion between the adhesive strip and the third carrier plate.

2. A feeding device according to claim 1, characterized in that: The clamping jaw device comprises an upper clamping jaw and a lower clamping jaw, wherein the upper end surface of the lower clamping jaw is lower than the protective film; the upper clamping jaw moves downward to approach the lower clamping jaw and completes the clamping of the protective film.

3. A feeding device according to claim 1, characterized in that: The first direction is a horizontal direction, and the second direction is a vertical direction. When tearing the film, the first driving device drives the clamping device to move to just below the rubber strip.

4. A feeding device according to claim 1, characterized in that: The transfer assembly is connected to a second suction cup assembly, and the second suction cup assembly is connected to the transfer assembly via a third driving device with a vertical driving direction; When the second suction cup assembly sucks the adhesive tape at the silo assembly, the third driving device drives the second suction cup assembly to reciprocate in the vertical direction at least twice.

5. A feeding device according to claim 1, characterized in that: The silo assembly includes a first carrier plate, a first lifting device arranged below the first carrier plate, and a first positioning assembly with an upper end portion penetrating the first carrier plate. The adhesive tape is placed on the first carrier plate and is limited by the first positioning assembly.

6. A feeding device according to claim 1, characterized in that: The pre-positioning assembly includes a second carrier plate, and a second positioning assembly with an upper end portion penetrating through the second carrier plate; The second carrier is provided with a first substrate; The second positioning assembly includes a first positioning rod and a second positioning rod. During pre-positioning, the first positioning rod pushes the tape against the first substrate, while the second positioning rod pushes the tape from an adjacent side to a predetermined position.

7. A feeding device according to claim 1, characterized in that: When the robot arm drives the third suction cup assembly to absorb the rubber strip, the second lifting device lifts the rubber strip to move upward and separate from the third carrier plate.

8. A feeding device according to claim 7, characterized in that: The first suction cup assembly is connected to the transfer assembly. The first suction cup assembly sucks the tape at the pre-positioning assembly and is transferred to the film tearing station and the unloading assembly in sequence under the drive of the transfer assembly.

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