PVDF tank welding equipment

Abstract

The PVDF tank welding equipment is characterized in that L-shaped connecting plates are symmetrically installed on the back face of a welding table, an assembling plate is installed above the L-shaped connecting plates, a rotating motor is installed on the surface of the assembling plate, a driving gear is installed at the output end of the rotating motor, and an extrusion assembly is engaged with the driving gear and used for pushing a clamping block; when the tank body is pressed downwards, the clamping blocks on the two sides can be automatically opened, the pushing blocks on the two sides are pushed inwards, opening is conducted according to the diameter of the tank body, the tank body opening device is suitable for the tank bodies of various different diameter types, and the use compatibility of the whole device is improved. The driving gear rotates to drive the two tooth blocks to move in the opposite directions, and the T-shaped sliding block slides in the T-shaped rail, so that the extending push block is in contact with one side of the bottom of the clamping block, the clamping block is pushed to press the tank body, the thrust provided by the first spring is compensated, and the stabilizing effect of the tank body is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a PVDF tank welding device. Background Art

[0002] PVDF tank, or polyvinylidene fluoride tank, is a storage device made of polyvinylidene fluoride (PVDF) material. PVDF is a highly crystalline, high-performance thermoplastic with excellent corrosion resistance, good mechanical properties, thermal properties, electrical properties and aging resistance. This makes PVDF tanks widely used in many fields, such as chemical industry, water treatment, medicine, food, etc.

[0003] At present, when welding PVDF tanks, specific clamping equipment is needed to fix the tank body. Different clamping equipment is needed for tanks of different sizes, which increases the cost of using the equipment. In addition, the different sizes and shapes of tanks are prone to loosening during the clamping process, resulting in welding misalignment failure. The tank body itself is not limited to a cylindrical shape, which will have certain limitations when using the clamping equipment, and is not conducive to the welding of other tank shapes. Summary of the invention

[0004] The object of the present invention is to provide a PVDF tank welding device to solve the problems raised in the above background.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A PVDF tank welding device comprises a welding table, wherein a slide groove is symmetrically provided on the surface of the welding table, a positioning shaft is installed in the slide groove, a clamping block and a first spring are slidably installed on the positioning shaft, and the first spring is close to the clamping block; An L-type connecting plate is symmetrically installed on the back of the welding table, an assembly plate is installed above the L-type connecting plate, a rotating motor is installed on the surface of the assembly plate, wherein a driving gear is installed at the output end of the rotating motor, and an extrusion component is meshed on the driving gear, and the extrusion component is used to push the clamping block; A left cylinder group; the left cylinder group is installed on one side of the welding table surface, the left cylinder group comprises a first cylinder, the first cylinder is installed on the welding table surface, the output end of the first cylinder is connected to a first top plate, first extension blocks are fixed at four corners of the first top plate, and a first pulley group is installed between the first extension blocks; A hot melt assembly is installed on one side of the first top plate; Right cylinder group; the right cylinder group and the left cylinder group are symmetrically installed on the surface of the welding table, the right cylinder group includes a third cylinder, the output end of the third cylinder is connected to the second top plate, the second top plate is fixed with second extension blocks at the four corners, and the second pulley group is installed between the second extension blocks; The second extension block is provided with a clamping mechanism.

[0006] Furthermore, the extrusion assembly includes a track block, a T-shaped track and a tooth block, wherein the track block is symmetrical between the L-connecting plates, the T-shaped track passes through the track block, a T-shaped slider is provided at the bottom of the tooth block, wherein the T-shaped slider slides in the T-shaped track, the tooth block is meshed with the driving gear, and an extension push block is provided at one end of the tooth block, which extends to the inside of the slide groove.

[0007] Furthermore, the hot melt assembly includes a side plate, an electric turntable is provided on the surface of the side plate, a second cylinder is installed on the surface of the electric turntable, and a hot melt plate is installed on the top of the second cylinder.

[0008] Furthermore, the clamping mechanism includes a pitch-adjusting motor, which is installed on one side of the second extension block. The output end of the pitch-adjusting motor is connected to a bidirectional screw, and a push plate is symmetrically installed on the bidirectional screw. There is a rectangular block on the surface of the slide groove, and extension rods are provided on both sides of the rectangular block. Constraint blocks are provided at both ends of the surface of the welding table, wherein the extension rod is slidably installed in the constraining block, and a pushing block is slidably installed on the positioning shaft, and a second spring is installed on one side of the pushing block, wherein the other side of the second spring is connected to the rectangular block.

[0009] Furthermore, the length of the push plate exceeds the width of the rectangular block.

[0010] Furthermore, the outer side surface of the pushing block is chamfered.

[0011] Furthermore, one side of the top of the holding block is inclined.

[0012] Furthermore, a support frame is fixed on the surface of the welding table.

[0013] The technical solution of the present invention has the following beneficial effects: 1. Pressing the tank downward will automatically open the holding blocks on both sides and push the pushing blocks on both sides inward. The opening will be carried out according to the diameter of the tank, so as to be suitable for tanks of various diameters and types, thereby improving the compatibility of the overall equipment.

[0014] 2. The rotation of the driving gear will drive the two gear blocks to move in opposite directions. The T-shaped slider slides in the T-shaped track, so that the extended push block will contact the bottom side of the holding block, and then push the holding block to press the tank body, thereby compensating for the thrust provided by the first spring and improving the stability of the tank body.

[0015] 3. Clamping mechanism: under the rotation of the bidirectional screw, the two symmetrically arranged push plates will move inward or outward at the same time to push the rectangular block to move. When the two push plates move outward at the same time, the push block is restricted by the tank body. At this time, the second spring will produce stroke compression, thereby improving the clamping effect of the push block. Combined with the extension of the push block to squeeze the clamping block, the internal and external clamping stability is achieved, thereby further improving the initial stability of the tank body and avoiding shaking during the welding process.

[0016] 4. After the tank body is stabilized, the left cylinder group and the right cylinder group are operated synchronously. The first cylinder pushes the first top plate to move, so that the first pulley group contacts the surface of the tank body; the third cylinder pushes the second top plate to move, so that the second pulley group contacts the surface of the tank body, thereby improving the stability of the entire tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the deformation structure of the hot melt disk of the present invention.

[0020] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0021] Figure 4 It is an overall cross-sectional view of the present invention.

[0022] Figure 5 It is a schematic diagram of the overall bottom structure of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the extrusion assembly of the present invention.

[0024] Figure 7 It is a schematic diagram of the cross-sectional structure of the extrusion assembly of the present invention.

[0025] Figure 8 It is a schematic diagram of the gear block installation structure of the present invention.

[0026] Fig. 9 It is a schematic diagram of the gear block structure of the present invention.

[0027] Fig.10 It is a schematic diagram of the structure of the left cylinder group of the present invention.

[0028] Fig.11 It is a schematic diagram of the structure of the right cylinder group of the present invention.

[0029] Fig.12It is a schematic diagram of the push block structure of the present invention.

[0030] Fig.13 This is a structural diagram of embodiment 3 of the present invention.

[0031] Reference numerals: 10, welding table; 101, slide groove; 102, positioning shaft; 103, clamping block; 104, first spring; 20, extrusion assembly; 201, L connecting plate; 202, assembly plate; 203, rotating motor; 204, track block; 205, T-shaped track; 206, gear block; 207, T-shaped slider; 208, extension push block; 209, driving gear; 30, left cylinder group; 301, first cylinder; 302, first top plate; 303, first extension block; 304, first pulley group; 305, side plate; 306, electric turntable; 307, second cylinder; 308, hot melt plate; 309, support frame; 40. Right cylinder group; 401. Third cylinder; 402. Second top plate; 403. Second extension block; 404. Second pulley group; 405. Pitch-adjusting motor; 406. Bidirectional screw; 407. Push plate; 408. Rectangular block; 409. Extension rod; 410. Restraining block; 411. Pushing block; 412. Second spring; 50. Tank body. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be 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. 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.

[0033] Embodiment 1: refer to Figure 1-Figure 7 A PVDF tank welding device includes a welding table 10, a surface of the welding table 10 is symmetrically provided with a slide groove 101, a positioning shaft 102 is installed in the slide groove 101, a holding block 103 and a first spring 104 are slidably installed on the positioning shaft 102, and the first spring 104 is close to the holding block 103; a tank body 50 is placed and positioned on the surface of the welding table 10.

[0034] In the above scheme, according to Figure 4In the process, the tank body 50 to be welded is placed on the welding table 10. The tank body 50 is pressed downward to automatically open the clamping blocks 103 on both sides. The clamping blocks 103 on both sides are limited by the first spring 104, which will provide thrust on the outside of the tank body 50 to initially stabilize the tank body 50. When the tank body 50 is separated from the clamping blocks 103, the first spring 104 provides thrust to shrink the clamping blocks 103 on both sides inward and automatically reset. The setting of the clamping blocks 103 can be opened according to the diameter of the tank body 50 when installing the tank body 50, so as to be suitable for a variety of tank bodies 50 of different diameters and types, thereby improving the compatibility of the overall equipment. The clamping blocks 103 are limited in the slide groove 101, and they can be deflected left and right. At the same time, the positioning shaft 102 is used to limit the moving direction of the clamping blocks 103.

[0035] Further reference Figure 2 The top side of the clamping block 103 is tilted. When the can body 50 is placed between the clamping blocks 103, the tilted setting facilitates the can body 50 to slide downward, and the tilted surface is smooth, which further improves the installation effect of the can body 50.

[0036] See also Figure 5-Figure 9 An L-connecting plate 201 is symmetrically installed on the back of the welding table 10, an assembly plate 202 is installed above the L-connecting plate 201, and a rotating motor 203 is installed on the surface of the assembly plate 202, wherein a driving gear 209 is installed at the output end of the rotating motor 203; an extrusion assembly 20 is meshed on the driving gear 209, and the extrusion assembly 20 is used to push the holding block 103; the extrusion assembly 20 comprises a track block 204, a T-shaped track 205 and a tooth block 206, the track block 204 is symmetrical between the L-connecting plates 201, the T-shaped track 205 runs through the track block 204, and a T-shaped slider 207 is provided at the bottom of the tooth block 206, wherein the T-shaped slider 207 slides and fits in the T-shaped track 205, the tooth block 206 meshes with the driving gear 209, and an extension push block 208 is provided at one end of the tooth block 206, and the extension push block 208 extends to the inside of the slide groove 101.

[0037] In the above scheme, after the tank 50 is placed between the clamping blocks 103, by starting the rotating motor 203, the rotation of the driving gear 209 will drive the two gear blocks 206 to move in opposite directions (refer to Figure 6 ), the T-shaped slider 207 slides in the T-shaped track 205, so that the extended push block 208 contacts the bottom side of the clamping block 103, and then pushes the clamping block 103 to press the tank body 50, thereby compensating for the thrust provided by the first spring 104, and improving the stability of the tank body 50. When moving, the extended push block 208 extending into the slide groove 101 can stably contact the bottom of the clamping block 103, and the maximum displacement distance of the extended push block 208 is limited by the slide groove 101.

[0038] refer to Figure 1 and Fig.10, left cylinder group 30; the left cylinder group 30 is installed on one side of the surface of the welding table 10, and the left cylinder group 30 includes a first cylinder 301, the first cylinder 301 is installed on the surface of the welding table 10, the output end of the first cylinder 301 is connected to the first top plate 302, the four corners of the first top plate 302 are fixed with first extension blocks 303, and the first pulley group 304 is installed between the first extension blocks 303. Reference Figure 1 and Fig.11 , right cylinder group 40; the right cylinder group 40 and the left cylinder group 30 are symmetrically installed on the surface of the welding table 10, the right cylinder group 40 includes a third cylinder 401, the output end of the third cylinder 401 is connected to the second top plate 402, the second top plate 402 is fixed with second extension blocks 403 at the four corners, and the second pulley group 404 is installed between the second extension blocks 403.

[0039] In the above scheme, the left cylinder group 30 and the right cylinder group 40 are vertically distributed on both sides of the slide slot 101, and the tank body 50 is stabilized by the clamping block 103 and the stabilization effect is enhanced by the left cylinder group 30 and the right cylinder group 40. After the tank body 50 is squeezed and stabilized by the squeezing assembly 20, the left cylinder group 30 and the right cylinder group 40 are synchronously operated, and the first cylinder 301 pushes the first top plate 302 to move, so that the first pulley group 304 contacts the surface of the tank body 50; the third cylinder 401 pushes the second top plate 402 to move, so that the second pulley group 404 contacts the surface of the tank body 50, improving the overall stabilization effect of the tank body 50.

[0040] refer to Figure 1 , Figure 2 and Fig.10 , wherein a hot melt assembly is installed on one side of the first top plate 302; the hot melt assembly includes a side plate 305, an electric turntable 306 is provided on the surface of the side plate 305, a second cylinder 307 is installed on the surface of the electric turntable 306, and a hot melt disc 308 is installed on the top of the second cylinder 307.

[0041] In the above scheme, after the extrusion assembly 20, the left cylinder group 30 and the right cylinder group 40 clamp the can body 50 stably, the electric turntable 306 is started to move the hot melt disc 308 to the top of the can body 50, and then the second cylinder 307 is started to control the hot melt disc 308 to fit on the top of the can body 50, and the top of the can body 50 is heated and melted. The hot melt disc 308 is usually equipped with a heating element, such as a heating wire, a heating rod or a heating plate, etc. After power is turned on, the surface of the hot melt disc 308 generates a high temperature to melt the surface of the can body 50 it contacts. After the hot melting is completed, the second cylinder 307 is started to separate the hot melt disc 308 from the top surface of the can body 50, and the electric turntable 306 is started to separate the hot melt disc 308 from the top of the can body 50. The top of the hot-melted can body 50 is placed in the corresponding base, and the corresponding base is attached to the top of the can body 50 by the mechanical arm to complete the welding work.

[0042] Further references Figure 2 A support frame 309 is fixed on the surface of the welding platform 10. The support frame 309 is used to support the hot melt plate 308 to stabilize the placement position of the hot melt plate 308.

[0043] The specific implementation process of this embodiment is as follows: First, the can body 50 is pressed downward to automatically open the clamping blocks 103 on both sides. The clamping blocks 103 on both sides are restricted by the first spring 104, which will provide thrust outside the can body 50 to initially stabilize the can body 50. Next, the rotating motor 203 is started, and the rotation of the driving gear 209 drives the two gear blocks 206 to move in opposite directions (refer to Figure 6 ), the T-shaped slider 207 slides in the T-shaped track 205, so that the extended push block 208 contacts the bottom side of the clamping block 103, and then pushes the clamping block 103 to press the tank body 50, thereby compensating for the thrust provided by the first spring 104; Then, the left cylinder group 30 and the right cylinder group 40 operate synchronously, the first cylinder 301 pushes the first top plate 302 to move, so that the first pulley group 304 contacts the surface of the tank body 50; the third cylinder 401 pushes the second top plate 402 to move, so that the second pulley group 404 contacts the surface of the tank body 50; Finally, the electric turntable 306 is started to move the hot melt plate 308 to the top of the tank body 50, and then the second cylinder 307 is started to control the hot melt plate 308 to fit on the top of the tank body 50, heating and melting the top of the tank body 50, and the corresponding base is fit on the top of the tank body 50 through the robotic arm to complete the welding work.

[0044] Embodiment 2: See also Figure 3 , Figure 4 and Fig.11 ; A clamping mechanism is installed on the second extension block 403. The clamping mechanism includes a pitch-adjusting motor 405, which is installed on one side of the second extension block 403. A bidirectional screw 406 is connected to the output end of the pitch-adjusting motor 405, and a push plate 407 is symmetrically installed on the bidirectional screw 406. A rectangular block 408 is provided on the surface of the slide 101, and extension rods 409 are provided on both sides of the rectangular block 408. Constraint blocks 410 are provided at both ends of the surface of the welding table 10, wherein the extension rod 409 is slidably installed in the constraining block 410, and a pushing block 411 is slidably installed on the positioning shaft 102, and a second spring 412 is installed on one side of the pushing block 411, wherein the other side of the second spring 412 is connected to the rectangular block 408.

[0045] In the above scheme, reference Figure 4When the tank body 50 is inserted and stabilized between the clamping blocks 103, the clamping blocks 103 on both sides spread outward, and at the same time, the inner diameter of the tank body 50 is squeezed and contacted on the surface of the pushing block 411, that is, the pushing blocks 411 on both sides are pushed inward, and the pushing blocks 411 will be displaced on the positioning shaft 102, and the second spring 412 provides thrust to assist the clamping positioning of the clamping block 103, and then by starting the adjustable distance motor 405, under the rotation of the bidirectional screw 406, the two symmetrically arranged push plates 407 will be displaced inward or outward at the same time to push the rectangular block 408 to displace, when the two push plates 407 are displaced outward at the same time, the pushing block 411 is restricted from displacement by the tank body 50, and the second spring 412 will produce stroke compression at this time, thereby improving the clamping effect of the pushing block 411, combined with the extended push block 208 to squeeze the clamping block 103, to achieve internal and external clamping stability, thereby further improving the initial stability effect of the tank body 50 and avoiding the problem of shaking during the welding process.

[0046] Further references Fig.11 , the length of the push plate 407 exceeds the width of the rectangular block 408. The extended length of the push plate 407 reduces the stroke required by the third cylinder 401 for the tank body 50 with a wider diameter, thereby avoiding the problem that the push plate 407 does not contact the side of the rectangular block 408.

[0047] Further references Fig.12 The outer side of the push block 411 is chamfered. The chamfering is for smoother insertion of the can body 50, greatly reducing the friction and resistance when the push block 411 contacts the can body 50, and avoiding direct hard contact that may cause scratches or damage to the surface of the can body.

[0048] Embodiment three: refer to Fig.13 The tank body 50 is cylindrical or polygonal. This product can be applied to the positioning of rectangles, polygons and columns, and has a wide range of uses.

[0049] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Various modifications or equivalent substitutions may be made to the present invention within the essence and protection scope of the present invention. Such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "inside", "front", "back", "left", "right", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the circle, or are the orientation or positional relationship in which the product of the invention is usually placed when in use, and are only used to facilitate the description of the present invention and simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, these terms indicating orientation or positional relationship cannot be understood as limiting the present invention.

[0051] In the description of the present invention, it is further explained that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, these terms can indicate a fixed connection, a detachable connection, or an integral connection between elements; they can also indicate a mechanical connection, an electrical connection; they can also indicate a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

Claims

1. A PVDF tank welding equipment, characterized in that: The welding platform (10) comprises a welding table (10), wherein a sliding groove (101) is symmetrically provided on the surface of the welding table (10), a positioning shaft (102) is installed in the sliding groove (101), a holding block (103) and a first spring (104) are slidably installed on the positioning shaft (102), and the first spring (104) is close to the holding block (103); An L-type connecting plate (201) is symmetrically mounted on the back of the welding table (10), an assembly plate (202) is mounted above the L-type connecting plate (201), a rotating motor (203) is mounted on the surface of the assembly plate (202), a driving gear (209) is mounted on the output end of the rotating motor (203), an extrusion assembly (20) is meshed on the driving gear (209), and the extrusion assembly (20) is used to push the clamping block (103); A left cylinder group (30); the left cylinder group (30) is mounted on one side of the surface of the welding table (10); the left cylinder group (30) comprises a first cylinder (301); the first cylinder (301) is mounted on the surface of the welding table (10); an output end of the first cylinder (301) is connected to a first top plate (302); first extension blocks (303) are fixed at four corners of the first top plate (302); and a first pulley group (304) is mounted between the first extension blocks (303); A hot melt assembly is installed on one side of the first top plate (302); a right cylinder group (40); the right cylinder group (40) and the left cylinder group (30) are symmetrically installed on the surface of the welding table (10); the right cylinder group (40) comprises a third cylinder (401); the output end of the third cylinder (401) is connected to a second top plate (402); second extension blocks (403) are fixed at four corners of the second top plate (402); and a second pulley group (404) is installed between the second extension blocks (403); A pressing mechanism is installed on the second extension block (403).

2. A PVDF tank welding device according to claim 1, characterized in that: The extrusion assembly (20) comprises a track block (204), a T-shaped track (205) and a tooth block (206), wherein the track block (204) is symmetrically arranged between the L-shaped connecting plates (201), the T-shaped track (205) passes through the track block (204), a T-shaped slider (207) is provided at the bottom of the tooth block (206), wherein the T-shaped slider (207) is slidably fitted in the T-shaped track (205), the tooth block (206) is meshed with a driving gear (209), and an extension push block (208) is provided at one end of the tooth block (206), and the extension push block (208) extends to the inside of the slide groove (101).

3. A PVDF tank welding device according to claim 2, characterized in that: The hot melt assembly comprises a side plate (305), the surface of the side plate (305) is provided with an electric turntable (306), the surface of the electric turntable (306) is mounted with a second cylinder (307), and the top of the second cylinder (307) is mounted with a hot melt plate (308).

4. A PVDF tank welding device according to claim 3, characterized in that: The clamping mechanism comprises a pitch-adjusting motor (405), wherein the pitch-adjusting motor (405) is mounted on one side of the second extension block (403), the output end of the pitch-adjusting motor (405) is connected to a bidirectional screw (406), a push plate (407) is symmetrically mounted on the bidirectional screw (406), a rectangular block (408) is provided on the surface of the slide groove (101), extension rods (409) are provided on both sides of the rectangular block (408), restraining blocks (410) are provided at both ends of the surface of the welding table (10), wherein the extension rod (409) is slidably mounted in the restraining block (410), a pushing block (411) is slidably mounted on the positioning shaft (102), a second spring (412) is installed on one side of the pushing block (411), wherein the other side of the second spring (412) is connected to the rectangular block (408).

5. A PVDF tank welding device according to claim 4, characterized in that: The length of the push plate (407) exceeds the width of the rectangular block (408).

6. A PVDF tank welding device according to claim 5, characterized in that: The outer side surface of the pushing block (411) is chamfered.

7. The PVDF tank welding equipment according to claim 1, characterized in that: One side of the top of the holding block (103) is arranged tilted.

8. The PVDF tank welding equipment according to claim 3, characterized in that: A support frame (309) is fixed on the surface of the welding platform (10).

9. A PVDF tank welding device according to claim 4, characterized in that: A tank body (50) is placed and positioned on the surface of the welding table (10), and the tank body (50) is cylindrical or polygonal.

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