Heat-sealing cutter mounting structure

Abstract

The utility model discloses a heat-sealing cutter mounting structure, which comprises a rack, a heat-sealing cutter mounted on the rack and a vertical cylinder, and is characterized in that the heat-sealing cutter is connected with an output shaft at the bottom of the vertical cylinder through a bracket, the bracket comprises a mounting plate and a connecting piece, the vertical cylinder is connected with the mounting plate, and the connecting piece is connected with the mounting plate. The top of the heat sealing cutter is connected with the mounting plate through the connecting piece; the connecting piece comprises a top plate, at least two guide rods and two side plates, the guide rods are connected with the mounting plate in a sliding mode, and the top of the heat sealing cutter is arranged between the two side plates and connected with the side plates; each guide rod is sleeved with a spring, and the two ends of each spring abut against the bottom face of the mounting plate and the top face of the top plate respectively. Each side plate is provided with a plurality of through holes, and the two ends of each through hole are communicated with the front end face and the rear end face of the side plate respectively. According to the utility model, the heat sealing and cutting effect is ensured, and the maintenance rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of packaging field, and especially a kind of hot sealing cutter mounting structure. BACKGROUND

[0002] After plastic cup production is completed, it is stacked after a certain amount, is loaded into packaging bag, then is conveyed using conveyor belt, then is sent into the hot sealing cutting mechanism of rear end, is sealed by hot sealing cutter, is cut off. In prior art, hot sealing cutter is directly connected with the output shaft of cylinder, is driven by the output shaft of cylinder to extend and retract, drives hot sealing cutter to move down, seals the place needing to be sealed by pressing on support plate. In this way, there are the following deficiencies:

[0003] 1. hot sealing cutter is quickly moved down by cylinder, and when hot sealing cutter is pressed on packaging bag and contacts with support plate, impact is caused, and with time, hot sealing cutter and support plate are prone to deformation and damage;

[0004] 2. the stroke of cylinder is not accurate enough, so that hot sealing cutting may not be cut off, affecting hot sealing cutting effect;

[0005] 3. since hot sealing cutter is directly connected with the output shaft of cylinder, heat on hot sealing cutter is directly transferred to cylinder, causing cylinder to work at high temperature for a long time, affecting the service life of cylinder. SUMMARY

[0006] The utility model aims at providing a kind of hot sealing cutter mounting structure, improve the stability of hot sealing cutting by using the structure, reduce maintenance rate.

[0007] To achieve the above object, the utility model adopts the technical scheme of a kind of hot sealing cutter mounting structure, including rack, hot sealing cutter and vertical cylinder mounted on rack, the output shaft of the bottom of vertical cylinder is connected with the hot sealing cutter through a support, the support is vertically slidably connected with the rack,

[0008] The support includes mounting plate and connecting piece, the mounting plate is slidably arranged on the rack, the output shaft of the bottom of vertical cylinder is connected with the top of mounting plate, the top of hot sealing cutter is connected with the mounting plate through the connecting piece;

[0009] The connecting piece includes top plate, at least two guide rods arranged on the top of top plate and two side plates arranged on the top and bottom of top plate, the guide rod is slidably connected with the mounting plate, the two side plates have a spacing between them, the top of hot sealing cutter is arranged between the two side plates, and the top of hot sealing cutter is connected with the two side plates;Spring is respectively sleeved on each guide rod, and the two ends of spring are respectively abutted on the bottom surface of mounting plate and the top surface of top plate.

[0010] Each of the side plates is provided with a plurality of through holes, and two ends of the plurality of through holes are communicated with the front end face and the rear end face of the side plate respectively.

[0011] In the technical solution, the top of each guide rod is screwed with a limiting nut, the limiting nut is arranged above the mounting plate, and the bottom surface of the limiting nut is in contact with the top surface of the mounting plate in the spring extended state.

[0012] In the technical solution, a travel switch is arranged on the rack and connected with the vertical air cylinder, and the travel switch is arranged on the front side of the connecting piece.

[0013] The front side of the connecting piece is provided with a detection plate, the detection plate is arranged opposite to the travel switch, and the top rear side of the detection plate is connected with the mounting plate.

[0014] In the technical solution, the bottom surface of the detection plate is an inclined surface inclined downward from left to right, the inclined surface is arranged directly above the detection end of the travel switch in the retracted state of the output shaft of the vertical air cylinder, and the inclined surface is in contact with the detection end of the travel switch and presses the detection end of the travel switch in the extending process of the output shaft of the vertical air cylinder.

[0015] In the technical solution, a vertical strip-shaped through slot is arranged above the detection plate, two positioning rods are arranged on the front side wall of the mounting plate, and the two positioning rods are arranged opposite to the vertical strip-shaped through slot respectively, two limiting bolts are inserted into the vertical strip-shaped through slot, the rear ends of the limiting bolts pass through the vertical strip-shaped through slot and are screwed with one of the positioning rods respectively, and the detection plate is connected with the positioning rods.

[0016] In the technical solution, an upper plate is arranged on the rack, the vertical air cylinder is arranged on the upper plate, and the mounting plate is arranged directly below the upper plate.

[0017] Two upper limiting screw rods are movably inserted into the middle part of the upper plate, two nuts are screwed on the upper limiting screw rods, the two nuts are arranged on the top surface and the bottom surface of the upper plate respectively, an upper limiting head is arranged at the bottom of each upper limiting screw rod, and the top surface of the mounting plate is in contact with the bottom surface of the upper limiting head in the retracted state of the output shaft of the vertical air cylinder.

[0018] In the technical solution, the two sides of the upper plate are movably connected with the rack, an adjusting screw rod is screwed on the rack, a hand knob rotary disc is arranged at the top of the adjusting screw rod, and the bottom of the adjusting screw rod is rotatably connected with the upper plate; when the adjusting screw rod rotates, the upper plate, the mounting plate, the connecting piece and the heat-sealing cutter move vertically.

[0019] The bottom surface of the mounting plate is further screwed with a lower limiting screw rod, the lower limiting screw rod is arranged beside the connecting piece, and the bottom of the lower limiting screw rod is provided with a lower limiting head;

[0020] The machine frame is provided with a lower positioning block, the lower limiting screw rod is arranged directly above the lower positioning block, and the lower limiting head is in abutment with the lower positioning block in the output shaft extension state of the vertical cylinder.

[0021] Compared with the prior art, the utility model has the following advantages due to the above technical scheme:

[0022] 1. In the utility model, the heat sealing cutter is connected with the output shaft of the vertical cylinder through the support and the connecting piece ensures the connection between the mounting plate and the connecting piece and the connection between the mounting plate and the output shaft of the vertical cylinder, the connecting piece is provided with two hollow side plates on the upper surface, so that the heat of the heat sealing cutter transferred to the connecting piece can be dissipated by the hollow side plates, the heat is prevented from being transferred to the cylinder as much as possible, the vertical cylinder is prevented from working in a high-temperature environment for a long time, the service life of the vertical cylinder is prolonged, and the maintenance rate is reduced.

[0023] 2. In the utility model, the connecting piece and the mounting plate are movably connected through the guide rod, and the spring is arranged on the guide rod, so that the heat sealing cutter, the product and the lower supporting plate are made of flexible materials during contact, the heat sealing is performed by using the elastic deformation force of the spring, and the heat sealing effect and stability are ensured.

[0024] 3. In the utility model, the detection plate and the travel switch are further arranged to detect the displacement of the mounting plate, the spring compression is prevented from being excessive, the pressure of the spring on the heat sealing cutter is prevented from being too large, the deformation and damage of the heat sealing cutter and the supporting plate are prevented, and the service life is prolonged.

[0025] 4. In the utility model, the upper limiting screw rod and the lower limiting screw rod are further arranged to accurately mechanically limit the upward and downward movement of the mounting plate and accurately limit the stroke of the vertical cylinder, the heat sealing process is prevented from being too large or too small in pressure, and the heat sealing effect and quality are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of the embodiment one of the utility model;

[0027] Figure 2 is Figure 1 a three-dimensional structural schematic view.

[0028] Wherein: 1, rack; 2, heat sealing cutter; 3, vertical cylinder; 4, mounting plate; 5, top plate; 6, guide rod; 7, side plate; 8, spring; 9, through hole; 10, limit nut; 11, travel switch; 12, detection plate; 13, inclined surface; 14, vertical strip-shaped through slot; 15, positioning rod; 16, limit bolt; 17, upper plate; 18, upper limit screw rod; 19, nut; 20, upper limit head; 21, lower limit screw rod; 22, lower limit head; 23, lower positioning block; 24, adjusting screw rod; 25, gripper turntable; 26, support plate. DETAILED DESCRIPTION

[0029] The utility model will be described further in connection with the drawings and examples:

[0030] Example one: see Figure 1 、 2 The heat sealing cutter installation structure shown in the figure, including rack 1, heat sealing cutter 2 and vertical cylinder 3 installed on the rack, the heat sealing cutter 2 is connected with the output shaft of the bottom of the vertical cylinder 3 through a support, the support and the rack 1 are vertically slidingly connected,

[0031] The support includes a mounting plate 4 and a connecting piece, the mounting plate 4 is slidingly arranged on the rack 1, the output shaft of the bottom of the vertical cylinder 3 is connected with the top of the mounting plate 4, and the top of the heat sealing cutter 2 is connected with the mounting plate 4 through the connecting piece;

[0032] The connecting piece includes a top plate 5, at least two guide rods 6 arranged on the top of the top plate 5 and two side plates 7 arranged on the bottom of the top plate 5, the guide rods 6 are slidingly connected with the mounting plate 4, the two side plates 7 have a spacing, the top of the heat sealing cutter 2 is arranged between the two side plates 7, and the top of the heat sealing cutter 2 is connected with the two side plates 7, the top of the heat sealing cutter 2 and the top plate 5 have a vertical spacing, a spring 8 is sleeved on each guide rod 6, and the two ends of the spring 8 abut on the bottom surface of the mounting plate 4 and the top surface of the top plate 5 respectively;

[0033] A plurality of through holes 9 are arranged on each side plate 7, and the two ends of the plurality of through holes 9 are communicated with the front end surface and the rear end surface of the side plate 7 respectively.

[0034] In this embodiment, a support plate 26 is arranged directly below the heat sealing cutter. The product is conveyed by the conveying belt and is paused when passing through the heat sealing cutter and the support plate. The heat sealing cutter needs to be directly below the heat sealing position. When heat sealing, the output shaft of the vertical cylinder is extended to drive the bracket and the heat sealing cutter to move downward. The heat sealing cutter has a heating assembly for heating the heat sealing cutter. In the normal state, the output shaft of the spring is extended so that the connecting piece is away from the mounting plate. The top of each guide rod is screwed with a limiting nut 10 which is arranged above the mounting plate. In the extended state of the spring, the bottom surface of the limiting nut is in contact with the top surface of the mounting plate. Therefore, when the heat sealing cutter moves downward, the bottom of the heat sealing cutter first presses the product to be heat sealed on the support plate. At this time, the output shaft of the vertical cylinder continues to extend. The mounting plate continues to move downward, and the heat sealing cutter does not continue to move downward. The downward movement of the mounting plate compresses the spring. The restoring force of the spring gives the connecting piece and the heat sealing cutter a downward pressure. After the output shaft of the vertical cylinder is completely extended, the spring is compressed to a predetermined extent. The spring force gives the connecting piece and the heat sealing cutter a predetermined pressure for heat sealing the product. After heat sealing, the output shaft of the vertical cylinder is retracted to drive the mounting plate to move upward. After the spring is completely extended, the mounting plate continues to move upward. The limiting nut drives the guide rod, the connecting piece and the heat sealing cutter to move upward to separate from the product and the support plate, so that the product moves away, waiting for the next product to enter between the heat sealing cutter and the support plate for the next heat sealing action. Since the heat sealing cutter has a high temperature, it transfers heat to the mounting plate through the connecting piece, and then to the vertical cylinder through the mounting plate. Therefore, in this embodiment, a plurality of through holes are arranged on the upper surface of the two side plates. The through holes make the side plates have a hollow structure, and the two side plates have a spacing. Therefore, the side plates and the two side plates facilitate heat dissipation, so that the side plates and the top plate dissipate heat quickly. The temperature of the connecting piece is much lower than that of the heat sealing cutter. The temperature transferred to the vertical cylinder is also much lower. The working temperature of the vertical cylinder is relatively low, which prolongs the service life of the vertical cylinder and reduces the maintenance rate.

[0035] Moreover, in this embodiment, due to the presence of the spring, the contact between the heat sealing cutter and the product and the support plate is flexible. The direct contact impact force is small, which reduces the damage and deformation of the heat sealing cutter and the support plate, reduces the maintenance rate, prolongs the service life, and reduces the noise, which is more environmentally friendly.

[0036] Referring to FIGS. 1-3, Figure 1 、 2 The rack 1 is provided with a travel switch 11 connected with the vertical cylinder 3. The travel switch 11 is arranged on the front side of the connecting piece.

[0037] The front side of the connecting piece is provided with a detection plate 12, which is arranged opposite to the travel switch 11, and the top rear side of the detection plate 12 is connected with the mounting plate 4.

[0038] The bottom surface of the detection plate 12 is a left-to-right inclined downward slope 13; in the output shaft retraction state of the vertical air cylinder 3, the slope 13 is arranged directly above the detection end of the travel switch 11; during the extension of the output shaft of the vertical air cylinder 3, the slope 13 is in contact with the detection end of the travel switch 11 and extrudes the detection end of the travel switch 11, so that the detection end of the travel switch is elastically deformed towards the travel switch.

[0039] In this embodiment, the travel switch and the detection plate are arranged close to the left side of the rack, which does not affect the passing and heat sealing cutting of the product. Since the detection end of the travel switch normally pops out to the right, when the bracket moves, the detection plate and the travel switch do not contact, the travel switch is not triggered, and the output shaft of the vertical air cylinder can normally extend. When the output shaft of the vertical air cylinder extends and drives the bracket to move downward, it will also drive the detection plate to move downward, and the existence of the slope, the right side of the slope first contacts the detection end of the travel switch, and when it continues to move downward, the slope will gradually push the detection end to move to the left until the travel switch is triggered, and then the signal is transmitted to the vertical air cylinder, indicating that the output shaft of the vertical air cylinder has extended to the position, and then it can be kept for a predetermined time before the output shaft of the vertical air cylinder retracts, or it immediately retracts, preventing the output shaft of the vertical air cylinder from extending too much and compressing the spring too much, so that the pressure of the heat sealing cutter on the support plate is too large, causing the support plate and the heat sealing cutter to deform and damage, reducing the maintenance rate and prolonging the service life.

[0040] As shown in Figure 1 , 2 , the upper side of the detection plate 12 is provided with a vertical strip-shaped through slot 14, the front side wall of the mounting plate 4 is provided with two positioning rods 15, and the two positioning rods 15 are arranged opposite to the vertical strip-shaped through slot 14 respectively; two limiting bolts 16 are inserted in the vertical strip-shaped through slot 14, the rear end of the limiting bolt 16 passes through the vertical strip-shaped through slot 14 and is screwed with one of the positioning rods 15 respectively, so as to connect the detection plate 12 with the positioning rods 15.

[0041] The arrangement of the positioning rods can make the detection plate away from the mounting plate and the heat sealing cutter, so as to facilitate the contact with the travel switch and not to interfere, and the arrangement of the vertical strip-shaped through slot can adjust the height of the detection plate, adjust the contact position of the slope and the detection end, and adjust the stroke of the vertical air cylinder, so as to improve the application range according to the required heat sealing cutting pressure of different products.

[0042] As shown in Figure 1 , 2As shown, the rack 1 is provided with an upper plate 17, the vertical cylinder 3 is installed on the upper plate 17, and the mounting plate 4 is arranged directly below the upper plate 17.

[0043] The middle part of the upper plate 17 is movably inserted with two upper limiting screws 18, the upper limiting screws 18 are screwed with two nuts 19, and the two nuts 19 are respectively abutted on the top surface and the bottom surface of the upper plate 17; the bottom of each upper limiting screw 18 is provided with an upper limiting head 20, and the top surface of the mounting plate 4 is in contact with the bottom surface of the upper limiting head 20 in the retracted state of the output shaft of the vertical cylinder 3.

[0044] When the output shaft of the vertical cylinder is retracted and drives the bracket and the heat-sealing cutter to move upward, the distance of the upward movement of the mounting plate can be limited by the upper limiting screw, thereby mechanically limiting the retraction stroke of the output shaft of the vertical cylinder, and the upward movement distance of the heat-sealing cutter is reduced as much as possible, so that the product can normally pass between the heat-sealing cutter and the supporting plate, but when the output shaft of the vertical cylinder is extended to drive the hot air cutter to move downward, the speed is relatively fast, and the heat-sealing efficiency is improved. The arrangement of the two nuts can limit and adjust the upper limiting screw, adjust the distance between the bottom of the upper limiting screw and the upper plate, and thereby adjust the upward movement distance of the heat-sealing cutter according to different heights of the product.

[0045] Referring to Figure 2 As shown, the bottom surface of the mounting plate 4 is also screwed with a lower limiting screw 21, the lower limiting screw 21 is arranged beside the connecting piece, and the bottom of the lower limiting screw 21 is provided with a lower limiting head 22.

[0046] The rack 1 is provided with a lower positioning block 23, and the lower limiting screw 21 is arranged directly above the lower positioning block 23; and the lower limiting head 22 is abutted on the lower positioning block 23 in the extended state of the output shaft of the vertical cylinder 3.

[0047] When the output shaft of the vertical cylinder is extended, the lower limiting screw and the lower positioning block are arranged for mechanical limiting on the basis of the electrical control of the travel switch, the downward movement distance of the mounting plate driven by the output shaft of the vertical cylinder is limited, the compression amount of the spring is controlled, the pressure of the hot air cutter is controlled, the supporting plate and the hot air cutter are prevented from being damaged, the service life is prolonged, and the maintenance rate is reduced. The upper limiting head and the lower limiting head are both made of rubber and are in flexible contact, thereby preventing rigid collision.

[0048] Referring to Figure 1 , 2As shown, two sides of the upper plate 17 are vertically movably connected with the frame 1, and an adjusting screw rod 24 is screwed on the frame 1, the top of the adjusting screw rod 24 is provided with a handle rotating disc 25, and the bottom of the adjusting screw rod 24 is rotationally connected with the upper plate 17; when the adjusting screw rod 24 rotates, the upper plate 17, the mounting plate 4, the connecting piece and the heat-sealing cutter 2 are vertically moved.

[0049] The adjusting screw rod can integrally drive the vertical movement of the upper plate, the vertical air cylinder, the heat-sealing cutter and the support, the position and height of the support can be adjusted according to the size of the product, the upward movement distance and the downward pressure of the heat-sealing cutter can be adjusted on the basis of the stroke of the vertical air cylinder, and the application range is improved.

Claims

1. A heat seal cutter mounting structure comprising a frame, a heat seal cutter mounted to the frame, and a vertical cylinder, characterized by: The heat-seal cutter is connected with the output shaft of the vertical cylinder bottom through a support, and the support is vertically slidably connected with the frame, The support comprises a mounting plate and a connecting piece, the mounting plate is slidably arranged on the frame, the output shaft of the vertical cylinder bottom is connected with the top of the mounting plate, and the top of the heat-seal cutter is connected with the mounting plate through the connecting piece; The connecting piece comprises a top plate, at least two guide rods arranged on the top of the top plate, and two side plates arranged on the front and back sides of the bottom of the top plate, the guide rods are slidably connected with the mounting plate, the two side plates have a spacing therebetween, the top of the heat-seal cutter is arranged between the two side plates, and the top of the heat-seal cutter is connected with the two side plates, a spring is sleeved on each guide rod, and the two ends of the spring are respectively abutted against the bottom surface of the mounting plate and the top surface of the top plate; A plurality of through holes are arranged on each side plate, and the two ends of the plurality of through holes are respectively communicated with the front end surface and the rear end surface of the side plate.

2. The heat-seal cutter mounting structure according to claim 1, characterized by: A limiting nut is screwed on the top of each guide rod, the limiting nut is arranged above the mounting plate, and the bottom surface of the limiting nut is in contact with the top surface of the mounting plate in the extended state of the spring.

3. The heat seal cutter mounting structure according to claim 1, characterized by: A travel switch is arranged on the frame and connected with the vertical cylinder, and the travel switch is arranged on the front side of the connecting piece; A detection plate is arranged on the front side of the connecting piece and faces the travel switch, and the top rear side of the detection plate is connected with the mounting plate.

4. The heat-seal cutter mounting structure according to claim 3, characterized by: The bottom surface of the detection plate is an inclined surface that is inclined downward from left to right, the inclined surface is arranged above the detection end of the travel switch in the retracted state of the output shaft of the vertical cylinder, the inclined surface is in contact with the detection end of the travel switch and presses the detection end of the travel switch in the extending process of the output shaft of the vertical cylinder.

5. The heat seal cutter mounting structure according to claim 3, characterized by: A vertical strip-shaped through slot is arranged above the detection plate, two positioning rods are arranged on the front side wall of the mounting plate and face the vertical strip-shaped through slot, two limiting bolts are inserted into the vertical strip-shaped through slot, the rear ends of the limiting bolts pass through the vertical strip-shaped through slot and are screwed with one of the positioning rods, and the detection plate is connected with the positioning rods.

6. The heat seal cutter mounting structure according to claim 1, characterized by: An upper plate is arranged on the frame, the vertical cylinder is arranged on the upper plate, and the mounting plate is arranged below the upper plate; Two upper limiting screw rods are movably inserted into the middle part of the upper plate, two nuts are screwed on the upper limiting screw rods, the two nuts are respectively abutted against the top surface and the bottom surface of the upper plate, an upper limiting head is arranged at the bottom of each upper limiting screw rod, and the top surface of the mounting plate is in contact with the bottom surface of the upper limiting head in the retracted state of the output shaft of the vertical cylinder.

7. The heat seal cutter mounting structure according to claim 6, characterized by: The two sides of the upper plate are vertically movably connected with the frame, an adjusting screw rod is screwed on the frame, a handle rotating disc is arranged at the top of the adjusting screw rod, the bottom of the adjusting screw rod is rotatably connected with the upper plate, and the adjusting screw rod drives the vertical movement of the upper plate, the mounting plate, the connecting piece and the heat-seal cutter when the adjusting screw rod rotates.

8. The heat seal cutter mounting structure according to claim 1, characterized by: The bottom surface of the mounting plate is also screwed with a lower limiting screw rod, the lower limiting screw rod is arranged beside the connecting piece, and the bottom of the lower limiting screw rod is provided with a lower limiting head; The machine frame is provided with a lower positioning block, the lower limiting screw rod is arranged directly above the lower positioning block, and the lower limiting head is in abutment against the lower positioning block in the output shaft extension state of the vertical air cylinder.

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