Powder feeding device for PVC glove production

Abstract

The invention relates to the field of PVC glove production and processing, in particular to a powder feeding device for PVC glove production. The powder feeding device for PVC glove production comprises a bottom frame, a workbench and a powder scattering assembly are fixed to the bottom frame through bolts, and a channel allowing a conveying belt for conveying gloves to penetrate through is formed between the workbench and the powder scattering assembly; a groove is formed in the upper end of the workbench, a material storage disc is connected into the groove in an embedded mode, a plurality of vibration coils are further fixed into the groove through screws, an opening is formed in the bottom in the material storage disc, and a discharging pipeline is bonded to the bottom in the material storage disc; the lower end of the workbench is further elastically connected with a powder recycling unit, and the powder recycling unit is further fixed to the material storage disc. According to the powder feeding device for producing the PVC gloves, provided by the invention, raw materials can be screened while powder recycling operation is realized, so that dirt doped in the powder is separated out, and the powder recycling procedure is simpler.

Description

Technical Field

[0001] The invention relates to the field of production and processing of PVC gloves, and in particular to a powder feeding device for producing PVC gloves. Background Art

[0002] PVC gloves are gloves made of polyvinyl chloride (PVC) as the main raw material.

[0003] Powdering is an important process in the production of PVC gloves, which means spraying corn starch or talcum powder evenly on the surface of gloves to make them smoother when used.

[0004] Traditional powdering equipment has a powder storage structure and a spraying structure to realize the automatic spraying of powder. However, the shape of the gloves themselves is irregular. If you want to spray the powder comprehensively, the area of ​​the raw material spraying is larger than the area displayed by the gloves, so a small amount of powder will be wasted. In this regard, a container is set under the spraying structure to recycle excess powder. However, some dirt (such as rust, clothing fibers, etc.) will also fall into the container, resulting in the need to screen the recovered powder later, making the powder recovery process more cumbersome.

[0005] Therefore, it is necessary to provide a new powder feeding device for producing PVC gloves to solve the above technical problems. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a powder feeding device for producing PVC gloves.

[0007] The powder-sprinkling device for producing PVC gloves provided by the present invention comprises a base frame, a workbench and a powder-sprinkling assembly are bolted to the base frame, and a passage is provided between the workbench and the powder-sprinkling assembly for a conveyor belt for conveying gloves to pass through;

[0008] The upper end of the workbench is provided with a groove, a material storage tray is connected in an embedded manner inside the groove, the material storage tray is also connected to the workbench by screws, a plurality of vibration coils for driving the material storage tray to vibrate are also screwed inside the groove, the bottom of the material storage tray is provided with an opening, and a material discharge pipe covering the opening and passing through the workbench is bonded to the bottom of the material storage tray;

[0009] The lower end of the workbench is also elastically connected to a powder recovery unit, and the powder recovery unit is also fixed to the material storage tray. When the material storage tray is in a vibrating state, the powder recovery unit will be driven to vibrate together.

[0010] Preferably, the bottom of the workbench is further provided with a first through opening and a second through opening communicating with the groove, and the second through opening corresponds to the middle position of the storage tray.

[0011] Preferably, the inner bottom of the storage tray has an inclined surface, and the opening is located at the lowest point of the inclined surface, and the discharge pipe is made of rubber material and passes through the workbench along the first through opening.

[0012] Preferably, the powder recovery unit comprises a lower hopper, which is mounted on the lower end of the workbench through a plurality of elastic connectors and is indirectly fixed to the storage tray through a plurality of fixed connectors, the upper end of the lower hopper corresponds to the position of the lowering pipe, and a first discharge pipe is screwed to the lower end of the lower hopper, and a third through-hole is provided on the lower hopper near the lower end;

[0013] A screen is screwed fixed inside the lower hopper, the lower end of the screen is a closed end, and a second discharge pipe is screwed fixed on the screen near the lower end, the second discharge pipe passes through the third through-hole and extends to the bottom of the lower hopper.

[0014] Preferably, the elastic connecting member includes a first tripod, the first tripod is bolted to the side of the lower hopper, a sliding rod with a sliding connection passes through the first tripod, a limiting nut is threadedly connected to the sliding rod near the lower end, and a spring is sleeved on the sliding rod for pressing against the first tripod and the limiting nut and supporting the lower hopper, a mounting seat is fixed to the upper end of the sliding rod, and the mounting seat is bolted to the lower end of the workbench.

[0015] Preferably, the fixed connection member includes a positioning plate, which is screwed to the side of the lower hopper, and a fixing rod is vertically welded on one side of the positioning plate. A second tripod is sleeved on the fixing rod and fixed by a nut. The second tripod passes through the second through-hole and extends to the inside of the groove, and is fixed to the lower end of the storage tray by screws.

[0016] Preferably, the powder sprinkling assembly includes a positioning frame, which is bolted to the base frame, and a support frame is bolted to the upper end of the positioning frame, and a first feeding pipe and a second feeding pipe are connected and fixed to the support frame, the first feeding pipe has a feed port, and the second feeding pipe is located directly above the storage tray, and a plurality of nozzles are movably connected to the second feeding pipe.

[0017] Preferably, a motor is bolted to one end of the first feeding pipe, a transmission shaft is fixed to the output end of the motor through a coupling, the transmission shaft also extends concentrically to the inside of the second feeding pipe, and a spiral plate is welded to the circumferential outer wall of the transmission shaft, and the rotation of the spiral plate is utilized to accelerate the flow rate of air inside the first feeding pipe and the second feeding pipe.

[0018] Preferably, a plurality of joints are welded to the circumferential outer wall of the second feeding pipe;

[0019] The upper end of the nozzle is integrally connected with a spherical connection joint, the spherical connection joint has a cavity inside and connects the second feeding pipe and the nozzle, and the outer wall of the nozzle is welded with a fixing pin, which is rotatably connected to each of the fixing pins through a connecting plate;

[0020] A ring frame is sleeved on the outside of the second feeding pipe, a hydraulic cylinder is rotatably connected to the ring frame, and an output end of the hydraulic cylinder is rotatably connected to the connecting plate.

[0021] Compared with the related art, the powder feeding device for PVC gloves production provided by the present invention has the following beneficial effects:

[0022] 1. A storage tray is set at the top of the workbench to collect excess powder. At the same time, the vibration coil is used to drive the storage tray to vibrate at a high frequency. Under the action of vibration, the collected powder can be concentrated at the lowest point, and then enter the discharge hopper through the discharge pipe;

[0023] 2. The lower hopper is elastically installed at the lower end of the workbench and is indirectly fixed to the storage tray. Therefore, when the storage tray vibrates, the vibration can be transmitted to the lower hopper, causing the lower hopper and the screen inside it to vibrate, thereby screening the collected powder through the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a preferred embodiment of a powder feeding device for producing PVC gloves provided by the present invention;

[0025] Figure 2 The present invention shows Figure 1 The structural diagram of the other side;

[0026] Figure 3 It is a structural schematic diagram of the working table and the material storage tray shown in the present invention;

[0027] Figure 4 It is a structural schematic diagram of the powder spreading assembly shown in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the second feeding pipe and the nozzle shown in the present invention in cooperation with each other;

[0029] Figure 6 It is a schematic diagram of the structure of the nozzle shown in the present invention;

[0030] Figure 7 It is a structural schematic diagram of the powder recovery unit shown in the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the lower hopper and the screen mesh in cooperation with each other shown in the present invention;

[0032] Fig. 9 It is a schematic structural diagram of the elastic connecting member shown in the present invention;

[0033] Fig.10 It is a schematic structural diagram of the fixed connecting member shown in the present invention.

[0034] Numbers in the figure: 1, chassis;

[0035] 2. Workbench; 21. Vibration coil; 22. First through-hole; 23. Second through-hole;

[0036] 3. Storage tray; 31. Feeding pipe;

[0037] 4. powder spreading assembly; 41. positioning frame; 42. support frame; 43. first feeding pipe; 44. feeding port; 45. motor; 46. second feeding pipe; 47. transmission shaft; 48. spiral plate; 49. nozzle; 410. joint; 411. spherical joint; 412. fixing pin; 413. connecting plate; 414. ring frame; 415. hydraulic cylinder;

[0038] 5. Powder recovery unit; 51. Lower hopper; 52. First discharge pipe; 53. Third through-hole; 54. Screen; 55. Second discharge pipe; 56. First tripod; 57. Sliding rod; 58. Limit nut; 59. Spring; 510. Mounting seat; 511. Positioning plate; 512. Fixing rod; 513. Second tripod. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] See also Figures 1 to 10 The embodiment of the present invention provides a powder feeding device for PVC glove production, the powder feeding device for PVC glove production comprises a base frame 1, and further comprises:

[0042] The workbench 2 is fixed on the base frame 1. The upper end of the workbench 2 has a groove. A plurality of vibration coils 21 for driving the storage tray 3 to vibrate are fixed with screws inside the groove. The bottom of the workbench 2 also has a first through hole 22 and a second through hole 23 connected to the groove.

[0043] The material storage tray 3 is installed inside the groove and fixed to the vibration coil 21. The bottom of the material storage tray 3 has an inclined surface and an opening is provided at the lowest point. A rubber material discharge pipe 31 is fixed at the lower end of the material storage tray 3 to close the opening. The material discharge pipe 31 passes through the workbench 2 along the first through-hole 22;

[0044] A powder sprinkling assembly 4 is installed on the base frame 1 and is located on one side of the workbench 2;

[0045] The powder recovery unit 5 is elastically mounted on the lower end of the workbench 2 and is also fixed to the material storage tray 3 .

[0046] It should be noted that in this powder feeding device, the powder spreading component 4 is an automatic powder spreading structure, which can realize powder feeding by negative pressure, and then spray the powder onto the surface of the glove; at the same time, the excess powder will fall into the storage tray 3, and the storage tray 3 will be used to recover it;

[0047] The vibration coil 21 is used to drive the storage tray 3 to vibrate, and the bottom of the storage tray 3 is an inclined surface, so during the vibration process, the powder can be gathered at the lowest point, so that the collected powder is introduced into the powder recovery unit 5 by using the discharge pipe 31; the powder recovery unit 5 is elastically installed at the lower end of the workbench 2, so it has a certain displacement floating amount, and is also indirectly fixed to the storage tray 3, so when the storage tray 3 is in a vibrating state, the vibration can be transmitted to the powder recovery unit 5, so as to realize the vibration of the powder recovery unit 5, so as to screen the powder and dirt and discharge the material;

[0048] It should also be noted that the existing production of gloves generally uses assembly lines, that is, the gloves are put on molds, and the molds are installed on a conveying structure, so that the gloves are transferred to the equipment corresponding to each process; and for this device, there is a gap between the workbench 2 and the powder sprinkling component 4, and the gap is a channel for the glove mold to pass through, and it maintains a horizontal state and also generates self-rotation, so that it can better cooperate with the powder sprinkling component 4 to perform powder sprinkling operations.

[0049] In the embodiments of the present invention, please refer to Figures 7 to 10 The powder recovery unit 5 includes a lower hopper 51, which is mounted on the lower end of the workbench 2 through a plurality of elastic connectors and is indirectly fixed to the storage tray 3 through a plurality of fixed connectors. The upper end of the lower hopper 51 corresponds to the position of the lowering pipe 31, and a first discharge pipe 52 is screwed to the lower end of the lower hopper 51, and a third through-hole 53 is provided on the lower hopper 51 near the lower end.

[0050] A screen 54 is screwed inside the lower hopper 51, and the lower end of the screen 54 is a closed end. A second discharge pipe 55 is screwed on the screen 54 near the lower end, and the second discharge pipe 55 passes through the third through-hole 53 and extends to the lower part of the lower hopper 51.

[0051] The elastic connecting member includes a first tripod 56, which is bolted to the side of the lower hopper 51, and a sliding rod 57 is slidably connected to the first tripod 56. A limit nut 58 is threadedly connected to the position of the sliding rod 57 near the lower end, and a spring 59 is sleeved on the sliding rod 57 to press against the first tripod 56 and the limit nut 58 and support the lower hopper 51. A mounting seat 510 is fixed to the upper end of the sliding rod 57, and the mounting seat 510 is bolted to the lower end of the workbench 2.

[0052] The fixed connection part includes a positioning plate 511, which is fixed to the side of the lower hopper 51 by screws. A fixing rod 512 is vertically welded on one side of the positioning plate 511. A second tripod 513 is sleeved on the fixing rod 512 and fixed by a nut. The second tripod 513 passes through the second through-hole 23 and extends to the inside of the groove, and is fixed to the lower end of the storage tray 3 by screws.

[0053] It should be noted that: in the powder recovery unit 5, a screen 54 is installed inside the lower hopper 51, and the lower hopper 51 is fixed by an elastic connector and supported by a spring 59, and the lower hopper 51 and the screen 54 float up and down through the elastic deformation of the spring 59;

[0054] The lower hopper 51 and the material storage tray 3 are fixed to each other via the second leg 513. Therefore, when the material storage tray 3 is vibrating, the vibration can be transmitted to the lower hopper 51 and the screen 54 via the second leg 513, causing the lower hopper 51 and the screen 54 to vibrate.

[0055] Therefore, when the powder is discharged from the discharge pipe 31, it will directly fall onto the screen 54, and the powder will be screened by the vibration of the screen 54. The screened powder will fall into the discharge hopper 51 and then discharged through the first discharge pipe 52, while the dirt will enter the second discharge pipe 55 along the screen 54 and be discharged through the second discharge pipe 55, so as to achieve the separation of the powder and the dirt.

[0056] At the same time, the vibration of the material storage tray 3 is used to drive the lower hopper 51 and the screen 54 to vibrate, which can achieve energy saving.

[0057] In the embodiments of the present invention, please refer to Figure 4The powder spreading assembly 4 includes a positioning frame 41, which is bolted to the base frame 1, and a support frame 42 is bolted to the upper end of the positioning frame 41, and a first feeding pipe 43 and a second feeding pipe 46 are connected and fixed to the support frame 42, and the first feeding pipe 43 has a feeding port 44, and the second feeding pipe 46 is located directly above the storage tray 3, and a plurality of nozzles 49 are movably connected to the second feeding pipe 46;

[0058] At the same time, a motor 45 is bolted to one end of the first feeding tube 43, and a transmission shaft 47 is fixed to the output end of the motor 45 through a coupling. The transmission shaft 47 also extends concentrically to the inside of the second feeding tube 46, and a spiral plate 48 is welded to the circumferential outer wall of the transmission shaft 47. The rotation of the spiral plate 48 accelerates the flow rate of air inside the first feeding tube 43 and the second feeding tube 46.

[0059] It should be noted that: in the powder sprinkling assembly 4, the motor 45 can drive the spiral plate 48 to rotate through the transmission shaft 47, and when the spiral plate 48 rotates, negative pressure will be generated inside the second feeding pipe 46, so that the airflow enters from the feed port 44 and is then discharged from the nozzle 49. The inside of the second feeding pipe 46 is also used to contain powder, so under the action of the airflow, the powder inside the second feeding pipe 46 can be sprayed out from the nozzle 49 to achieve the powdering operation on the gloves; at the same time, a material extraction pipe can be installed at the feed port 44, and the other end of the pipe can directly extract the stored powder, and the powder can be continuously introduced into the second feeding pipe 46 through the negative pressure to achieve a continuous supply of raw materials.

[0060] In the embodiments of the present invention, please refer to Figure 5 and Figure 6 , a plurality of joints 410 are welded to the circumferential outer wall of the second feeding pipe 46;

[0061] The upper end of the nozzle 49 is integrally connected with a spherical connection joint 411, which has a cavity inside and connects the second feeding pipe 46 and the nozzle 49. The outer wall of the nozzle 49 is welded with a fixing pin 412, which is rotatably connected to each fixing pin 412 through a connecting plate 413;

[0062] A ring frame 414 is sleeved on the outside of the second feeding pipe 46 , and a hydraulic cylinder 415 is rotatably connected to the ring frame 414 . The output end of the hydraulic cylinder 415 is rotatably connected to the connecting plate 413 .

[0063] It should be noted that the nozzle 49 is installed on the joint 410 through the spherical connecting joint 411, which can rotate by itself, so as to adjust the direction of the nozzle 49 and improve the spraying accuracy of the powder; at the same time, the hydraulic cylinder 415 can drive the connecting plate 413 to move, and the connecting plate 413 is connected to the fixing pin 412 on the nozzle 49, so that the connecting plate 413 can drive each nozzle 49 to rotate synchronously, thereby realizing the adjustment of the direction of the nozzle 49.

[0064] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A powder-sprinkling device for producing PVC gloves, comprising a base frame (1), a workbench (2) and a powder-sprinkling assembly (4) being bolted to the base frame (1), a passage for a conveyor belt for conveying gloves to pass through being provided between the workbench (2) and the powder-sprinkling assembly (4), and characterized in that: The upper end of the workbench (2) has a groove, and a material storage tray (3) is connected in an embedded manner inside the groove. The material storage tray (3) is also connected to the workbench (2) by screws, and a plurality of vibration coils (21) for driving the material storage tray (3) to vibrate are also screwed inside the groove. The bottom of the material storage tray (3) has an opening, and a material discharge pipe (31) covering the opening and passing through the workbench (2) is bonded to the bottom of the material storage tray (3); The lower end of the workbench (2) is also elastically connected to a powder recovery unit (5), and the powder recovery unit (5) is also fixed to the material storage tray (3). When the material storage tray (3) is in a vibrating state, the powder recovery unit (5) is driven to vibrate together.

2. The powder feeding device for PVC gloves production according to claim 1, characterized in that: The bottom of the workbench (2) is also provided with a first through-opening (22) and a second through-opening (23) communicating with the groove, and the second through-opening (23) corresponds to the middle position of the material storage tray (3).

3. The powder feeding device for PVC gloves production according to claim 2, characterized in that: The inner bottom of the material storage tray (3) has an inclined surface, and the opening is located at the lowest point of the inclined surface. The material discharge pipe (31) is made of rubber and passes through the workbench (2) along the first through opening (22).

4. The powder feeding device for PVC gloves production according to claim 1, characterized in that: The powder recovery unit (5) comprises a lower hopper (51), the lower hopper (51) is mounted on the lower end of the workbench (2) via a plurality of elastic connectors, and is also indirectly fixed to the storage tray (3) via a plurality of fixed connectors, the upper end of the lower hopper (51) corresponds to the position of the lowering pipe (31), a first discharge pipe (52) is screwed to the lower end of the lower hopper (51), and a third through-hole (53) is provided on the lower hopper (51) near the lower end; A screen (54) is screwed inside the lower hopper (51), the lower end of the screen (54) being a closed end, and a second discharge pipe (55) is screwed on the screen (54) near the lower end, the second discharge pipe (55) passes through the third through opening (53) and extends to the bottom of the lower hopper (51).

5. The powder feeding device for PVC gloves production according to claim 4, characterized in that: The elastic connecting member comprises a first tripod (56), the first tripod (56) being bolted to the side of the lower hopper (51), a sliding rod (57) being slidably connected running through the first tripod (56), a limiting nut (58) being threadedly connected to the sliding rod (57) near the lower end, and a spring (59) being sleeved on the sliding rod (57) and pressing against the first tripod (56) and the limiting nut (58) and being used to support the lower hopper (51), a mounting seat (510) being fixed to the upper end of the sliding rod (57), and the mounting seat (510) being bolted to the lower end of the workbench (2).

6. The powder feeding device for PVC gloves production according to claim 4, characterized in that: The fixed connection member comprises a positioning plate (511), the positioning plate (511) being fixed to the side of the lower hopper (51) by screws, a fixing rod (512) being vertically welded to one side of the positioning plate (511), a second bracket (513) being sleeved on the fixing rod (512) and fixed by a nut, the second bracket (513) passing through the second through opening (23) and extending to the inside of the groove, and being fixed to the lower end of the storage tray (3) by screws.

7. The powder feeding device for producing PVC gloves according to claim 1, characterized in that: The powder sprinkling assembly (4) comprises a positioning frame (41), the positioning frame (41) is bolted to the base frame (1), a support frame (42) is bolted to the upper end of the positioning frame (41), a first feeding pipe (43) and a second feeding pipe (46) are connected and fixed to the support frame (42), the first feeding pipe (43) has a feeding port (44), the second feeding pipe (46) is located directly above the storage tray (3), and a plurality of nozzles (49) are movably connected to the second feeding pipe (46).

8. The powder feeding device for producing PVC gloves according to claim 7, characterized in that: A motor (45) is bolted to one end of the first feeding pipe (43), and a transmission shaft (47) is fixed to the output end of the motor (45) via a coupling. The transmission shaft (47) also extends coaxially into the second feeding pipe (46), and a spiral plate (48) is welded to the circumferential outer wall of the transmission shaft (47). The rotation of the spiral plate (48) is used to accelerate the flow rate of air inside the first feeding pipe (43) and the second feeding pipe (46).

9. The powder feeding device for producing PVC gloves according to claim 7, characterized in that: A plurality of joints (410) are welded to the circumferential outer wall of the second feeding pipe (46); The upper end of the nozzle (49) is integrally connected with a spherical connection joint (411), the spherical connection joint (411) has a cavity inside and is connected with the second feeding pipe (46) and the nozzle (49), and the outer wall of the nozzle (49) is welded with a fixing pin (412) and is rotatably connected to each of the fixing pins (412) through a connecting plate (413); The second feeding pipe (46) is also sleeved with a ring frame (414) on the outside, and a hydraulic cylinder (415) is rotatably connected to the ring frame (414), and the output end of the hydraulic cylinder (415) is rotatably connected to the connecting plate (413).

Images