CN214353782U - Material strip breaking structure and material strip breaking device - Google Patents
Material strip breaking structure and material strip breaking device Download PDFInfo
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- CN214353782U CN214353782U CN202022714177.1U CN202022714177U CN214353782U CN 214353782 U CN214353782 U CN 214353782U CN 202022714177 U CN202022714177 U CN 202022714177U CN 214353782 U CN214353782 U CN 214353782U
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Abstract
The utility model discloses a material strip breaks disconnected structure and material strip and breaks disconnected device off with fingers and thumb, material strip breaks disconnected structure off with fingers and thumb including the first sword of breaking with fingers and thumb and the second sword of breaking with fingers and thumb that is located material strip relative both sides off with fingers and thumb, rotates on the first sword of breaking with fingers and thumb and installs the first rolling element that is used for material strip to break with fingers and thumb rolling contact with material strip one side when breaking with fingers and thumb, rotates on the second sword of breaking with fingers and thumb and installs the second rolling element that is used for material strip to break with fingers and thumb rolling contact with material strip opposite side when breaking with fingers and thumb; the first breaking-off knife and the second breaking-off knife synchronously reciprocate in the same direction to linearly break off the material belt from the product. The material strip breaking device comprises a material strip breaking structure; the device also comprises a first cutter holder used for fixing the first breaking-off cutter, a second cutter holder used for fixing the second breaking-off cutter and a power mechanism used for driving the first cutter holder and the second cutter holder to synchronously reciprocate linearly in the same direction. The utility model discloses can guarantee that the material area breaks disconnected when dropping smoothly off with the fingers and thumb, effectively reduce because of the cladding material peels off the bad problem of product that causes, improved the yield of product.
Description
Technical Field
The utility model belongs to the technical field of injection product production, especially, relate to a break structure and material area break off with fingers and thumb disconnected device with the excessive material area break off with fingers and thumb on the product.
Background
At present, in many injection molding products with steel sheets, the steel sheets are provided with material belts, and subsequent breaking treatment is needed. The existing breaking structure is that an upper cutter and a lower cutter directly contact redundant material strips on a steel sheet, and the material strips are broken and fall off through the up-and-down back-and-forth movement of the upper cutter and the lower cutter. The surface of the material belt is generally plated with a coating, and the currently used breaking method of reciprocating upper cutter and lower cutter can cause the coating on the material belt to peel off and adhere to the surface of an injection molding product, thereby affecting the appearance quality and performance quality of the product.
In view of the above, there is a need to provide a material strip with a good breaking and dropping property, and to effectively reduce the product defects caused by the peeling of the plating layer.
SUMMERY OF THE UTILITY MODEL
Aiming at overcoming the deficiencies existing in the prior art, the utility model provides a first technical problem be, provide a material area and break disconnected structure off with the fingers and thumb, can guarantee the material area and break disconnected when dropping off with the fingers and thumb smoothly, effectively reduce because of the cladding material peels off the bad problem of product that causes, improved the yield of product.
As same technical conception, the utility model provides a second technical problem be, provide a material area and break disconnected device off with fingers and thumb.
The utility model provides a technical scheme that above-mentioned first technical problem adopted is: a material belt breaking structure is used for breaking redundant material belts on a product; the material strip breaking device comprises a first breaking cutter and a second breaking cutter which are positioned on two opposite sides of the material strip, wherein the first breaking cutter is rotatably provided with a first rolling body which is in rolling contact with one side of the material strip when the material strip is broken, and the second breaking cutter is rotatably provided with a second rolling body which is in rolling contact with the other side of the material strip when the material strip is broken; the first breaking-off knife and the second breaking-off knife synchronously reciprocate in the same direction to linearly break off the material belt from the product.
As a further improvement, two first lug parts are arranged at the bottom of the first breaking-off knife at intervals, first pin shafts penetrate through the first lug parts, and the first rolling bodies are rotatably mounted on the first pin shafts between the two first lug parts;
or, the first bottom interval of breaking off the sword off with the fingers and thumb is provided with two first ears, rotate on the first ear and install first round pin axle, two between the first ear first round pin epaxial fixed mounting have first rolling element.
As a further improvement, two second lug parts are arranged at the top of the second breaking-off knife at intervals, second pin shafts penetrate through the second lug parts, and second rolling bodies are rotatably arranged on the second pin shafts between the two second lug parts;
or, the top interval of the second breaking-off knife is provided with two second ears, a second pin shaft is installed on the second ears in a rotating mode, and the second pin shaft is fixedly installed between the second ears and is provided with a second rolling element.
The utility model provides a technical scheme that above-mentioned second technical problem adopted is: a material belt breaking device comprises a material belt breaking structure; the first knife holder is used for fixing the first breaking-off knife, the second knife holder is used for fixing the second breaking-off knife, and the power mechanism is used for driving the first knife holder and the second knife holder to synchronously reciprocate linearly in the same direction.
As a further improvement, the material strip breaking device further comprises a product fixing seat and a pressing structure for bearing the product; the pressing structure is used for pressing the product carried by the product fixing seat.
As a further improvement, the pressing structure comprises a pressing block, a guide shaft and an elastic piece; one end of the guide shaft is fixedly connected with the pressing block, the other end of the guide shaft is connected with the first cutter holder in a sliding fit mode, and the elastic piece is sleeved on the guide shaft between the first cutter holder and the pressing block.
As a further improvement, the first knife holder is provided with a plurality of first breaking-off knives at intervals, and the second knife holder is provided with a plurality of second breaking-off knives corresponding to the first breaking-off knives one by one.
As a further improvement, the product fixing seat includes a seat body, a plurality of extending portions are arranged on the seat body at intervals, a breaking space is formed between two adjacent extending portions, the product is placed on the extending portions, and the material belt is located outside the breaking space or the first extending portion.
As a further improvement, the pressing block comprises a body, at least two extending and pressing parts are arranged on the body at intervals, and an avoidance port is arranged on the body between every two adjacent extending and pressing parts.
As a further improvement, the power mechanism is an eccentric wheel connecting rod mechanism which changes rotation into reciprocating linear motion.
Since the technical scheme is used, the utility model discloses the beneficial effect who gains as follows:
the utility model provides a disconnected structure is broken off with fingers and thumb in material area, break off the sword with the fingers and thumb and the second including first breaking off the sword with the fingers and thumb and break off the sword with the fingers and thumb and rotate on the sword with the fingers and thumb and install first rolling element, and the second breaks off the sword with the fingers and thumb and rotates on installing the second rolling element with the fingers and thumb. The first rolling body and the second rolling body rotate along with the synchronous equidirectional reciprocating linear movement of the first breaking cutter and the second breaking cutter in the material strip breaking process, sliding friction is changed into rolling friction, the friction influence on the material strip is reduced, the probability that a plating layer on the material strip is peeled off is reduced while the material strip is guaranteed to be smoothly broken and dropped, and the yield of products is improved.
Moreover, as the friction effect between the first breaking-off knife and the material belt is reduced, the service life of the first breaking-off knife and the service life of the second breaking-off knife can be prolonged; because the stripping condition of the plating layer is reduced, the cleaning frequency can be reduced, and the equipment utilization rate is improved.
Drawings
Fig. 1 is a schematic view of a part of the structure of the material strip breaking device of the present invention;
fig. 2 is an enlarged view of a material strip breaking structure at a in fig. 1;
FIG. 3 is a side view of FIG. 1;
fig. 4 is an enlarged view of the material strip breaking structure at B in fig. 3;
fig. 5 is a reference diagram of a first state in the process of breaking off the material belt;
fig. 6 is a reference diagram of a second state in the process of breaking the material belt;
in the figure: 1-a first breaking-off knife, 11-a first lug part, 12-a first pin shaft, 13-a first snap spring, 14-a first rolling body, 2-a second breaking-off knife, 21-a second lug part, 22-a second pin shaft, 23-a second snap spring, 24-a second rolling body, 3-a first knife holder, 4-a second knife holder, 5-a product fixing holder, 6-a pressing structure, 61-a pressing block, 611-a body, 612-an extending pressing part, 613-an avoiding opening, 62-a guide shaft, 63-an elastic part, 7-a product and 8-a material belt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments of the present invention are for simplicity of description only and are not to be construed as limiting the present invention.
As shown in fig. 1 to 3, the present embodiment discloses a material strip breaking structure for breaking off excess material strips 8 on a product 7. The material strip breaking structure comprises a first breaking cutter 1 and a second breaking cutter 2 which are positioned at the upper side and the lower side of a material strip 8, a first rolling body 14 which is used for rolling contact with the upper side of the material strip 8 when the material strip is broken is rotatably mounted on the first breaking cutter 1, and a second rolling body 24 which is used for rolling contact with the lower side of the material strip 8 when the material strip is broken is rotatably mounted on the second breaking cutter 2; the first breaking-off knife 1 and the second breaking-off knife 2 synchronously reciprocate in the same direction to do linear motion (reciprocate up and down) to break off the material belt 8 from the product 7.
Two first lug parts 11 are arranged at the bottom of the first breaking-off knife 1 at intervals, first pin shafts 12 penetrate through the first lug parts 11, and first rolling bodies 14 (rollers) are rotatably mounted on the first pin shafts 12 between the two first lug parts 11; or two first lug parts 11 are arranged at the bottom of the first breaking-off knife 1 at intervals, a first pin shaft 12 is rotatably mounted on the first lug parts 11, and a first rolling body 14 is fixedly mounted on the first pin shaft 12 between the two first lug parts 11; one end of the first pin shaft 12 is provided with a first clamp spring 13 for limiting. Two second lug parts 21 are arranged at the top of the second breaking-off cutter 2 at intervals, second pin shafts 22 penetrate through the second lug parts 21, and second rolling bodies 24 are rotatably arranged on the second pin shafts 22 between the two second lug parts 21; or, two second lug parts 21 are arranged at intervals at the top of the second breaking-off knife 2, a second pin 22 is rotatably mounted on the second lug parts 21, and a second rolling element 24 is fixedly mounted on the second pin 22 between the two second lug parts 21; one end of the second pin 22 is provided with a second clamp spring 23 for limiting.
The embodiment also discloses a material strip breaking device, which comprises the material strip breaking structure; the device further comprises a first cutter seat 3 used for fixing the first breaking-off cutter 1, a second cutter seat 4 used for fixing the second breaking-off cutter 2, a power mechanism (not shown in the figure) used for driving the first cutter seat 3 and the second cutter seat 4 to synchronously reciprocate in the same direction and linearly, a product fixing seat 5 used for bearing a product 7 and a pressing structure 6; the pressing structure 6 is used for pressing the product 7 carried by the product fixing seat 5.
The power mechanism in the embodiment is an eccentric wheel connecting rod mechanism which changes rotation into reciprocating linear motion; the servo motor comprises a servo motor, an eccentric wheel connected with a power shaft of the servo motor, a connecting rod hinged on the end face of the eccentric wheel and a fixing seat hinged with the connecting rod, wherein a sliding block is arranged on the back face of the fixing seat, and the sliding block is vertically and slidably mounted on a sliding rail. The first tool apron 3 and the second tool apron 4 can be both arranged on the fixed base in an adjustable mode.
In the present embodiment, the pressing structure 6 includes a pressing block 61, a guide shaft 62, and an elastic member 63 (preferably, a spring); one end of the guide shaft 62 is fixedly connected with the pressing block 61, the other end of the guide shaft 62 is connected with the first cutter holder 3 in a vertical sliding fit mode, the elastic piece 63 is sleeved on the guide shaft 62 between the first cutter holder 3 and the pressing block 61, and a limiting piece is arranged at one end, extending out of the first cutter holder 3, of the guide shaft 62.
In order to improve the production efficiency, the material strip breaking device of the embodiment can simultaneously break the redundant material strips 8 on the four products 7. The specific implementation structure is as follows: four first breaking-off cutters 1 are arranged on the first cutter base 3 at intervals, and four second breaking-off cutters 2 corresponding to the first breaking-off cutters 1 one by one are arranged on the second cutter base 4. Four extending parts are arranged on the seat body of the product fixing seat 5 at intervals, a breaking space is formed between two adjacent extending parts, the product 7 is placed on the extending parts, and the material belt 8 is positioned in the breaking space or on the outer side of the first extending part (the first breaking knife 1 and the second breaking knife 2 which synchronously reciprocate up and down break the corresponding material belt 8 in the breaking space or on the outer side of the first extending part). Two extending and pressing parts 612 are arranged on a body 611 of the pressing block 61 at intervals, a first avoiding opening 613 is formed in the body 611 between every two adjacent extending and pressing parts 612, and the first avoiding opening 613 is used for avoiding a first breaking-off knife 1 and a second breaking-off knife 2 which synchronously reciprocate up and down. One press 61 can press two products 7 simultaneously, and this embodiment includes two presses 61 in total.
The following briefly explains the working principle of the material strip breaking device based on the above structure:
the product 7 is placed on the product fixing seat 5, the power mechanism drives the first cutter seat 3 to move towards the product 7, and the pressing structure 6 presses the product 7 borne by the product fixing seat 5.
As shown in fig. 4, the material tape 8 is located between the first rolling element 14 of the first breaking-off knife 1 and the second rolling element 24 of the second breaking-off knife 2, and the material tape 8 is in a horizontal state.
As shown in fig. 5, the first severing knife 1 and the second severing knife 2 move downward synchronously under the driving of the power mechanism, so that the strip 8 is bent. In the process, the first rolling body 14 of the first breaking-off knife 1 moves downwards, then the first rolling body rolls and contacts the material belt 8, the material belt 8 bends, and the first rolling body 14 rolls clockwise; the material belt 8 is bent and then contacts the second rolling body 24 on the second breaking-off knife 2 in a rolling manner, so that the second rolling body 24 rolls clockwise.
As shown in fig. 6, the first severing knife 1 and the second severing knife 2 move upward synchronously under the driving of the power mechanism, and the strip 8 passes through the horizontal position of fig. 4 and then is bent to the position shown in fig. 6. In the process, the second rolling body 24 on the second breaking-off knife 2 rotates counterclockwise, the bending degree of the material strip 8 is reduced, and the first rolling body 14 of the first breaking-off knife 1 rotates counterclockwise to reach the position shown in the figure 4, and then continues to move to reach the position shown in the figure 6.
Then, the first breaking-off knife 1 and the second breaking-off knife 2 continue to synchronously move downwards, and continue to move downwards to the position shown in fig. 5 after reaching the position shown in fig. 4; repeating the steps for 2 to 3 times until the material belt 8 is broken off. In the whole process, the first rolling body 14 and the second rolling body 24 roll continuously, energy generated by friction is released, and friction influence is reduced.
To sum up, the utility model discloses a disconnected structure is broken off with fingers and thumb to material area and the material is broken off with fingers and thumb disconnected device, and the friction that becomes sliding friction for rolling friction has reduced and has broken sword and material area broken off with fingers and thumb's friction influence, when guaranteeing to break off with fingers and thumb smoothly in the material area and drop off with fingers and thumb, has reduced the probability that plating layer peeled off on the material area, has improved the yield of product. Moreover, as the friction effect between the first breaking-off knife and the material belt is reduced, the service life of the first breaking-off knife and the service life of the second breaking-off knife can be prolonged; because the stripping condition of the plating layer is reduced, the cleaning frequency can be reduced, and the equipment utilization rate is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A material belt breaking structure is used for breaking redundant material belts on a product; the material strip breaking device is characterized by comprising a first breaking cutter and a second breaking cutter which are positioned on two opposite sides of the material strip, wherein the first breaking cutter is rotatably provided with a first rolling body which is in rolling contact with one side of the material strip when the material strip is broken off, and the second breaking cutter is rotatably provided with a second rolling body which is in rolling contact with the other side of the material strip when the material strip is broken off; the first breaking-off knife and the second breaking-off knife synchronously reciprocate in the same direction to linearly break off the material belt from the product.
2. The material strip breaking structure according to claim 1, wherein two first ear portions are spaced from the bottom of the first breaking knife, a first pin shaft penetrates through the first ear portions, and the first pin shaft between the two first ear portions is rotatably mounted with the first rolling body;
or, the first bottom interval of breaking off the sword off with the fingers and thumb is provided with two first ears, rotate on the first ear and install first round pin axle, two between the first ear first round pin epaxial fixed mounting have first rolling element.
3. The material strip breaking structure according to claim 1, wherein two second ear portions are spaced apart from each other at the top of the second breaking cutter, a second pin shaft penetrates through each second ear portion, and the second rolling element is rotatably mounted on the second pin shaft between the two second ear portions;
or, the top interval of the second breaking-off knife is provided with two second ears, a second pin shaft is installed on the second ears in a rotating mode, and the second pin shaft is fixedly installed between the second ears and is provided with a second rolling element.
4. A material strip breaking device, comprising the material strip breaking structure of any one of claims 1 to 3; the device also comprises a first cutter holder used for fixing the first breaking-off cutter, a second cutter holder used for fixing the second breaking-off cutter and a power mechanism used for driving the first cutter holder and the second cutter holder to synchronously reciprocate linearly in the same direction.
5. The material strip breaking device according to claim 4, further comprising a product holder and a pressing structure for carrying the product; the pressing structure is used for pressing the product carried by the product fixing seat.
6. The material strip breaking device according to claim 5, wherein the pressing structure comprises a pressing block, a guiding shaft and an elastic member; one end of the guide shaft is fixedly connected with the pressing block, the other end of the guide shaft is connected with the first cutter holder in a sliding fit mode, and the elastic piece is sleeved on the guide shaft between the first cutter holder and the pressing block.
7. The material strip breaking device according to claim 6, wherein a plurality of first breaking-off blades are spaced apart from each other on the first tool holder, and a plurality of second breaking-off blades corresponding to the first breaking-off blades are disposed on the second tool holder.
8. The material strip breaking device of claim 7, wherein the product holder comprises a holder body, a plurality of extending portions are spaced apart from each other on the holder body, a breaking space is formed between two adjacent extending portions, the product is placed on the extending portions, and the material strip is located outside the breaking space or the first extending portion.
9. The material strip breaking device according to claim 8, wherein the pressing block includes a body, at least two extending pressing portions are spaced apart from each other on the body, and an avoiding opening is formed on the body between two adjacent extending pressing portions.
10. The material strip severing device of claim 4, wherein said power mechanism is an eccentric wheel linkage mechanism for changing rotation into reciprocating linear motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022714177.1U CN214353782U (en) | 2020-11-19 | 2020-11-19 | Material strip breaking structure and material strip breaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022714177.1U CN214353782U (en) | 2020-11-19 | 2020-11-19 | Material strip breaking structure and material strip breaking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214353782U true CN214353782U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022714177.1U Active CN214353782U (en) | 2020-11-19 | 2020-11-19 | Material strip breaking structure and material strip breaking device |
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| Country | Link |
|---|---|
| CN (1) | CN214353782U (en) |
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- 2020-11-19 CN CN202022714177.1U patent/CN214353782U/en active Active
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