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Abstract

The present invention discloses a stick pushing mechanism, which relates to the technical field of stick stringing machines. The scheme comprises a base, a guide column fixedly arranged on the base and at least one group of stick pushing components, wherein the stick pushing components comprise a connecting block, a ball screw screwed on the base and a pushing block fixedly arranged on the connecting block, wherein the guide column passes through the half of the connecting block close to the base, the pushing block is located on the side of the guide column away from the base, a V-shaped groove is vertically provided at one end of the connecting block close to the base, the ball screw is located below the guide column, the steel ball end of the ball screw passes through the base and abuts against the V-shaped groove; compared with the prior art, the present invention solves the technical problem of high stick pushing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of food skewering machines, and in particular to a skewer pushing mechanism. Background Art

[0002] At present, some barbecue skewers on the market are made by automated equipment. Generally, thinner bamboo sticks are inserted into the material to form food skewers. Existing automated equipment generally uses an integrated skewer pushing claw. In order to cooperate with the chain drive, a separate mold groove is generally used to place the bamboo sticks. In order to improve the threading efficiency, the automated equipment generally extends the integrated skewer pushing claw into multiple sets of mold grooves accordingly during the threading process, and then pushes multiple bamboo sticks at the same time to make food skewers. The defect is that the skewer pushing accuracy is not high. Since the bamboo sticks are thin, and it is difficult for multiple sets of mold grooves to fully match the skewer pushing claw at the same time, the skewer pushing claw often misses pushing a certain bamboo stick when the machine is working, resulting in frequent alarm shutdowns to remove excess bamboo sticks. Summary of the invention

[0003] The purpose of the present invention is to provide a stick pushing mechanism with high stick pushing accuracy to solve the problems raised in the background technology.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A stick pushing mechanism comprises a base, a guide column fixedly arranged on the base and at least one set of stick pushing components, wherein the stick pushing components comprise a connecting block, a ball screw screwed on the base and a pushing block fixedly arranged on the connecting block, wherein the guide column passes through the half of the connecting block close to the base, the pushing block is located on the side of the guide column away from the base, a V-shaped groove is vertically opened at one end of the connecting block close to the base, the ball screw is located below the guide column, and the steel ball end of the ball screw passes through the base and abuts against the V-shaped groove.

[0006] Furthermore, a step is horizontally arranged at one end of the connection block close to the base, and the distance between the connection block located above the step and the base is smaller than the distance between the connection block located below the step and the base.

[0007] Furthermore, a sign pushing portion is provided at the lower end of the pushing block.

[0008] Furthermore, the sign pushing assembly also includes a guide plate, and the guide plate is fixedly arranged on the connecting block.

[0009] Furthermore, the lower end of the guide plate cooperates with the lower end of the push block.

[0010] Furthermore, there are two push blocks.

[0011] Furthermore, it also includes a pressure plate assembly, which includes a fixed plate and an adjusting screw screwed on the fixed plate, the fixed plate is fixedly connected to the base, and the lower end of the adjusting screw passes through the fixed plate and abuts against the upper end of the connecting block.

[0012] Furthermore, the adjusting screw is located on a side of the guide column away from the ball screw.

[0013] Furthermore, a limiting hole is provided at the upper end of the connecting block, and the lower end of the adjusting screw is located in the limiting hole.

[0014] Furthermore, the push-sign assembly also includes a fastening screw, an adjustment hole is opened on the push block, and the fastening screw passes through the adjustment hole and is screwed on the connecting block.

[0015] The beneficial effects of the present invention are as follows: the present invention enables the connecting block to swing around the guide column as the center by passing the guide column through the half of the connecting block close to the base, thereby driving the push block to swing up and down, so that the lower end of the push block has a certain upward and downward movable space; a V-shaped groove is vertically opened at one end of the connecting block close to the base, so that the steel ball end of the ball screw is abutted in the V-shaped groove; on the one hand, the steel ball of the ball screw is used to limit the lateral sliding of the connecting block along the guide rod; on the other hand, when the part of the connecting block close to the push block moves downward under the action of gravity, the spring in the ball screw cooperates with the steel ball to abut the connecting block again, so that the push block swings within a required range; compared with the prior art, excessive wear is prevented and the pushing accuracy of the push block is improved; on the other hand, the push stick assembly is arranged to be at least one group, and the number of the push stick assembly can be set as needed; each push stick assembly works independently and does not interfere with each other; in actual production tests, no bamboo stick is missed, and frequent shutdowns for troubleshooting are avoided; compared with traditional one-piece push stick claws, the pushing stick accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the base, guide column, sign-pushing assembly and pressing plate assembly of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the guide column and the sign pushing assembly of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the guide column and the sign pushing assembly of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the guide column and the connecting block of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the guide column, the sign pushing assembly and the pressing plate assembly of the present invention;

[0021] Figure 6It is a structural side view of the base, guide column, sign-pushing assembly and pressing plate assembly of the present invention;

[0022] Figure 7 It is a right side view of the structure of the base, guide column, sign pushing assembly and pressing plate assembly of the present invention;

[0023] Figure 8 It is a schematic diagram of the structure of four groups of push-stick components of the present invention;

[0024] Fig. 9 It is a schematic diagram of the overall structure of the present invention;

[0025] Fig.10 It is a structural schematic diagram of the signature pressing plate of the present invention.

[0026] The accompanying drawings are marked as follows:

[0027] Base 1, guide column 2;

[0028] Pushing sign assembly 3, connecting block 31, V-shaped groove 311, step 312, limiting hole 313, ball screw 32, pushing block 33, adjusting hole 331, pushing sign part 332, guide plate 34;

[0029] Pressing plate assembly 4, fixing plate 41, adjusting screw 42;

[0030] Slide rail 5, pressing plate 6, pressing teeth 61. DETAILED DESCRIPTION

[0031] The present invention is further described below with reference to the accompanying drawings. It should be noted that the following directional words such as "left", "right", "upper", and "lower" are used as the Figure 1 The orientation of the structure shown in FIG. 1 is based on the orientation of the structure shown in FIG. 1 , where the X-axis and the Y-axis are parallel to the horizontal plane, and the Z-axis is perpendicular to the horizontal plane.

[0032] like Figures 1 to 10 The illustrated stick pushing mechanism comprises a base 1, a guide column 2 fixedly arranged on the base 1 along the Y-axis direction, four stick pushing assemblies 3, a pressing plate assembly 4, a slide rail 5 and a stick pressing plate 6.

[0033] Please refer again Figure 2 and Figure 3 The push-sign assembly 3 includes a connecting block 31 arranged along the X-axis, a ball screw 32 screwed on the base 1, a push block 33 fixedly arranged on the connecting block 31, a guide plate 34 and a fastening screw. The ball screw 32 is a prior art. The ball screw 32 is a derivative product of the set screw and is composed of a spring, a steel ball, and a shell; the guide column 2 passes through the half of the connecting block 31 close to the base 1, that is, Figure 1The guide column 2 shown passes through the left half of the connecting block 31, with the guide column 2 as the fulcrum, and the right half of the connecting block 31 is heavier; the push block 33 is located on the side of the guide column 2 away from the base 1, that is, the right half of the connecting block 31 will sink with the push block 33 under the action of gravity; the lower end of the push block 33 is provided with a stick pushing portion 332, and the stick pushing portion 332 is adapted to the shape of the notch of the mold groove for placing the bamboo sticks, and the push block 33 will embed the stick pushing portion 332 into the notch of the mold groove under the action of gravity; a V-shaped groove 311 is vertically opened at one end of the connecting block 31 close to the base 1, and the ball screw 32 is located below the guide column 2, and the steel ball end of the ball screw 32 passes through the base 1 and rests in the V-shaped groove, so that the ball screw The steel ball end of the wire 32 is against the V-shaped groove. On the one hand, the steel ball of the ball screw 32 is used to limit the lateral sliding of the connecting block 31 along the guide rod. On the other hand, when the part of the connecting block 31 close to the pushing block 33 moves downward under the action of gravity, the spring in the ball screw 32 cooperates with the steel ball to press against the connecting block 31, so that the pushing block 33 swings within the required range, preventing excessive wear of the pushing part 332 and the mold groove, and also improving the pushing accuracy of the pushing block 33. The pushing stick assembly 3 is arranged in four groups, and the four groups of pushing stick assemblies 3 work independently without interfering with each other. In the actual production test, no bamboo sticks were missed, which avoids frequent shutdowns for troubleshooting. Compared with the traditional one-piece pushing stick claw, the pushing stick accuracy is improved.

[0034] Please refer again Figure 4 A step 312 is horizontally provided at one end of the connecting block 31 close to the base 1. The distance between the connecting block 31 located above the step 312 and the base 1 is smaller than the distance between the connecting block 31 located below the step 312 and the base 1. With the step 312 as the limit, when the push block 33 swings upward, the protruding upper half of the connecting block 31 will first abut against the base 1, thereby limiting the swing amplitude of the connecting block 31 to a certain extent and preventing the push block 33 from excessively tilting.

[0035] The guide plate 34 is fixedly arranged on the connecting block 31 , and the lower end of the guide plate 34 cooperates with the lower end of the pushing block 33 . The lower end of the guide plate 34 is slidably arranged in the mold groove for placing the bamboo sticks, which plays a good guiding role for the pushing stick part 332 .

[0036] There are two push blocks 33 and two guide plates 34 respectively. The two guide plates 34 are matched with the two push blocks 33 respectively. The positions of the two push blocks 33 are staggered left and right, so that bamboo sticks at different positions can be pushed; because the bamboo sticks at two different positions need to be inserted into materials at two different positions respectively, the material can be fed from two directions to increase the feeding speed, so the staggered position of the two push blocks 33 improves the work efficiency to a certain extent.

[0037] An adjustment hole 331 is provided on the push block 33 , and a fastening screw passes through the adjustment hole 331 and is screwed on the connecting block 31 . The height of the push block 33 can be adjusted by loosening the fastening screw.

[0038] Please refer again Figure 5 and Figure 6 The pressure plate assembly 4 includes a fixed plate 41 and an adjusting screw 42 screwed on the fixed plate 41. The fixed plate 41 is fixedly connected to the base 1. The lower end of the adjusting screw 42 passes through the fixed plate 41 and abuts against the upper end of the connecting block 31. The adjusting screw 42 is located on the side of the guide column 2 away from the ball screw 32. A limiting hole 313 is provided at the upper end of the connecting block 31. The lower end of the adjusting screw 42 is located in the limiting hole 313. The connecting block 31 is centered on the guide column 2. The left end is limited by the ball screw 32, and the upper end is limited by the adjusting screw 42, so that the swing of the connecting block 31 is within the specified range.

[0039] Please refer again Fig. 9 and Fig.10 The base 1 and the signature pressing plate 6 are both slidably arranged on the slide rail 5, and the signature pressing plate 6 is located in the pushing direction of the signature pushing assembly 3, and the signature pressing plate 6 moves with the base 1. The lower end of the signature pushing plate is integrally formed with a pressing tooth 61 that presses the middle part of the bamboo stick to prevent the bamboo stick from bending and breaking when being pushed.

[0040] The working principle of the present invention is as follows: the swing amplitude range of the connecting block 31 is adjusted by the wave screw and the adjusting screw 42, and the external driving mechanism drives the present invention to move downward, so that the pushing stick portion 332 penetrates into the mold groove, and at the same time, the pressing teeth press the middle part of the bamboo stick, and the external driving mechanism drives the base 1 and the pushing stick plate to move right, so that the pushing stick portion 332 pushes the bamboo stick to penetrate the food to make a food skewer.

[0041] The above description does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A stick pushing mechanism, comprising a base, characterized in that: It also includes a guide column fixedly arranged on the base and at least one set of push-stick components, the push-stick components including a connecting block, a ball screw screwed on the base and a push block fixedly arranged on the connecting block, the guide column passes through the half of the connecting block close to the base, the push block is located on the side of the guide column away from the base, a V-shaped groove is vertically opened at one end of the connecting block close to the base, the ball screw is located below the guide column, the steel ball end of the ball screw passes through the base and abuts against the V-shaped groove, and a push-stick portion is provided at the lower end of the push block; The push-sign assembly further includes a guide plate, the guide plate being fixedly disposed on the connecting block; The lower end of the guide plate cooperates with the lower end of the push block.

2. A stick pushing mechanism according to claim 1, characterized in that: A step is horizontally arranged at one end of the connection block close to the base, and the distance between the connection block located above the step and the base is smaller than the distance between the connection block located below the step and the base.

3. A stick pushing mechanism according to claim 1, characterized in that: The pushing block has two pieces.

4. A stick pushing mechanism according to claim 1, characterized in that: It also includes a pressure plate assembly, which includes a fixed plate and an adjusting screw screwed on the fixed plate. The fixed plate is fixedly connected to the base, and the lower end of the adjusting screw passes through the fixed plate and abuts against the upper end of the connecting block.

5. A stick pushing mechanism according to claim 4, characterized in that: The adjusting screw is located at a side of the guide column away from the ball screw.

6. A stick pushing mechanism according to claim 5, characterized in that: The upper end of the connecting block is provided with a limiting hole, and the lower end of the adjusting screw is located in the limiting hole.

7. A stick pushing mechanism according to any one of claims 1 to 6, characterized in that: The push-sign assembly also includes a fastening screw. An adjustment hole is provided on the push block. The fastening screw passes through the adjustment hole and is screwed on the connecting block.

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